Some standard content:
1CS25.120.10
Machinery Industry Standard of the People's Republic of China
JB/T9964-1999
Closed Press
Published on 1999-05-14
Technical Conditions
2000-01-01Implementation
National Machinery Industry Bureau
3BT9964-[999
This standard is a revision of ZBJ62028-89 Closed Press Technical System. The technical content of this standard is basically consistent with that of 2DJ62028-89, and it has only been re-edited according to relevant regulations. This standard has been implemented since January 1, 2000. The standard replaces 2BJ6202889 since its implementation.
Appendix A and Appendix B of this standard are both informative appendices. This standard was proposed and coordinated by the National Rongle Machinery Standardization Technical Committee. The responsible drafting unit of this standard is: Jinan Second Machine Tool Factory. This standard was first issued in March 1979.
［Fan Guo
People's Republic of China Machinery Industry Standard
Technical Conditions for Closed Type Presses
JBT9964-1999
16202889
This standard specifies the technical requirements, test methods, test rules, packaging, labeling and routing of presses. This standard applies to negative single, double and return point presses, and also to closed single and double point side presses (hereinafter referred to as presses). Reference Standards
The provisions contained in the following standards constitute the text of this standard through reference in this standard. When this standard is published, the versions shown are valid: All standards are subject to revision. All parties using this standard should explore the possibility of using the new versions of the following standards. GB 191—1990
GB/I 3766—1983
GB/T 5226,1—1996
G8/[ 7932—1987
GE/T 79331987
GB/T[0974J989
GR/T 10933--1989
GR/T 13306—1991
IB/T 1647 1999
JB/T 3228J999
IBT 3240.1999
B3350—1993
JB-T 3623.--1984
BT8356.1—16
JB99741999
3 Technical requirements and test methods
3.1 Drawings and technical documents
Packaging, storage and transportation drawings and specifications
Technical conditions for temperature application of the system
Industrial machinery and gas equipment Part 1: General technical parts General technical parts of pneumatic system
General technical conditions for hydraulic components
Production of round single-point presses
Details of closed double-point presses
Types and basic parameters of closed press fastening dies Distribution and size of punching (item) holes of forging machinery Visual symbols for operating instructions of forging machinery
Safety technical parts for mechanical correction
Method for measuring the noise of pressing machinery with belt force
Technical conditions for machine tool packaging The drawings and technical specifications of the force machine shall meet the requirements of the technical standards and shall be approved by the relevant department before it can be put into production. 3.2 Type and parameters The type and specifications of the force machine shall comply with the provisions of JB/T 1647. For newly designed presses, the distribution form and size of the molds, punching holes and other specifications shall comply with the provisions of JB/T 3228. 3.3 Appendix 3.3.1 When the press machine is exported, the necessary tools and spare parts shall be placed, and the special accessories shall be discussed with the manufacturer. The machine shall not be sold or sold separately.
Approved by the State Bureau of Machinery Industry on May 14, 1999 and implemented on January 1, 2000
JB/T9964—J999
3.3.2 The purchased accessories of the press machine shall comply with the relevant standards. When it is exported, the press machine shall be tested at the same time as the press machine. 3.4 Wear-resistant measures
The important moving pairs of the press machine shall be tested for wear. For the important parts such as high-speed load gears, die height adjustment thread pairs, and wheel pairs, wear-resistant measures shall also be taken to increase their service life. 3.5 Durability
The press machine shall have reasonable rigidity. For new products or products designed by the company, the press machine shall be tested. 3.5.1 The linear stiffness of a single-point press should not be less than 22.5, kN/m. Note: P, nominal force of the press, KN.
3.5.2 The allowable latitude of the slide and the workbench of a double-point or four-point press should not be greater than 0.2/1000. 3.5.3 The measurement method of stiffness shall be in accordance with the provisions of Appendix A (Appendix of the specification). 3.6 Safety and lung protection
3.6.1 For the parts of the press that may cause damage to personnel or equipment, corresponding safety protection measures must be taken or safety anti-expansion devices must be installed, and their design and manufacture must comply with the provisions of Beijing 3350. 3.6.2 The operation of the press must be safe and reliable, and continuous adjustment should not occur during the single stroke specification. 3.6.3 There should be no irregular impact and screaming when the press is running. 3.6.4 The motor flywheel should be marked with an arrow indicating the direction of rotation at an appropriate location: 3.6,5 Where it is inconvenient to inspect and maintain on the ground, necessary ladders and inspection platforms should be provided. The platform decking should use anti-slip plates, the side height should not be less than 40mm, and the guardrail height should not be less than 105mm. 3. Lubrication
The press machine should have a suitable lubrication device to ensure that the operating parts are lubricated normally. Generally, it should have a leakage prevention device or oil collection device.
3.8 Signs
3.8.1 The press machine should have various signs or symbols for indication, lubrication, operation, safety and other requirements: 3.8.2 The type and size of the sign shall comply with the provisions of GH13306. 3.8.3 The pictographic symbols in the sign shall comply with the provisions of B3240. 3. "The design, manufacture and acceptance of pressure vessels shall comply with the relevant standards and procedures: 3.10 Quality of cast iron, forgings and welded parts 3.10. "All cast iron, forgings, welded parts and non-ferrous metal castings of the positive machine shall comply with the relevant standards, such as the polishing standard and marking shall comply with the technical requirements of the drawing and process documents. 3.10.2 Cast iron, steel and non-ferrous metal castings shall be cleaned of the molding sand and adhesives and welding accessories. The surfaces of the parts and welded parts shall be flat, and the minimum straightness tolerance shall be greater than the provisions in Table 1. H
Non-ferrous metal castings
Castings
Welded parts
Gear parts
JB/L9964—1999
The true linearity tolerance is within the length of α!
The working surfaces of important castings, such as sleeves, inner surfaces of bearings, gears, worm gear tooth surfaces, 5-wheel sliding surfaces and the inner surfaces of liquid overload protection, shall not have pores, shrinkage, or other defects. 3.10.4 For casting defects that do not affect the use and appearance, under the condition of ensuring the quality of use, it is allowed to be repaired according to the provisions of relevant standards.
The welding of important forgings should be avoided by eliminating internal stress. 3. 10.5
The hardness of the moving surface of the same guide rail after processing should be uniform, and the difference in hardness should not be more than 2 times the starting value: 3.10.6
Guide rail length
3.11 Quality of processing
3.11.1 The quality of the parts shall meet the requirements of the design and process documents. There should be no burrs, spots or other mechanical damage on the processed surface. Except for special provisions, there should be no sharp press and dust. 3.11.2 The contact between the scraped bearing and the shaft (guide) sleeve should be tested in the actual working environment (the bearing should be installed in the bearing): 3.11.3 The scraped points of the lower working surface of the bearing and the guide rail should be uniform. When using a test tool or a matching part for coloring test, the contact should be 300 cm area average calculation (if less than 300, calculate by half the area average, every 25m × 25mm surface contact points should be less than the specified in Table 3. Shaft scraping low point in the table (not less than 120°: inspection, rail or bearing, bearing diameter> 120-260-260-500 "continuous shaft than the inner surface of the flat part, the number of contact points can be reduced by one point: 2 joint parts of the same degree of guide, according to the fixed number of points inspection, 3 academic regulations do not use non-shaft hand-made shaft modification of the rail, pull the clock pad guide point effect
JB/T9964-1999
3.11.4 For sliding guides, shaft guides, shaft (guide) guides, etc. processed by precision planing, grinding or other machine cutting methods, the contact conditions shall be checked by the coloring method. The contact area shall not be less than 70% of the axial length of the shaft, bearing and the total length of the rail, and shall not be less than 50% of the guide width.
3.12 Assembly quality
3.12.1 The press shall be assembled according to the assembly process. The parts and components assembled to the press shall meet the quality requirements, and gaskets, transformers, etc. not specified in the drawings are not allowed.
3.12.2 The cleanliness of the press shall meet the requirements of relevant standards. 3.12.3 The important fixed joint surfaces shall be tightly fitted. After tightening, they shall be inspected with a U.05mm ruler. The allowable width shall not be greater than 1/4 of the contact surface width, and the cumulative length of the contact surface between the contact surfaces shall not exceed the circumference! 110. Note: Important fixed fittings: parts and workpieces, upper and lower worktables, guide shafts and single machine bases and brackets, anti-agglomeration nuts, bearing bushing outer diameter and bearing, 3.4 The bearing bushing and its bearing bushing seat should be in close contact, and its matching requirements should meet the design and workpiece requirements. 3.12.5 The guide is allowed to be tested for contact with a test plate by the coloring method, and the angle deviation of the guide and the slider of the bed is tested with a feeler gauge during assembly, and the 0.03mm scale is required. 3.12.6 The auxiliary axial position of the magnetic clutch gear after assembly shall not be greater than the specified value in Table 4 Table 4
Small gear wheel speed
>20-150
Center belt
3.12.7 The contact condition/component of the main transmission gear pair shall not be less than 60% of the tooth width and 40% of the tooth height 3.12.8 After the flywheel is assembled, the flywheel shall be subjected to a semi-balance test and calibration. The allowable unbalanced torque of the flywheel shall be calculated according to formula (1). [4]
Where: [M]—allowable unbalanced torque of the flywheel, gmm;—flywheel working speed, adg;
—flywheel speed, g,
3.12.9 The rotating parts on the clutch and brake components shall be subjected to a static semi-balance test and calibration before assembly. In the idle running test after the small power machine is assembled, no obvious vibration is allowed. 3.12.10 The flywheel part or component is tested for the runout of the flywheel. The tolerance should not exceed the provisions of Table 5. Flywheel true
≥1000-2000
3B/T9964-1999
Late dynamic differential
Strength: When the flywheel is tested, the indicator is divided into radial and initial surfaces (10 meters from the outside of the wheel). The hand plate moves the flywheel to rotate one circle. The maximum deviation of the indicator is the dynamic differential. The seat friction clutch and brake work smoothly, reliably and in coordination. 3. t2.11
3.12.12 There shall be no irregular impact sound, screech, or other noise caused by improper assembly during the operation of the pressure pillow. 3.12.13 The noise of the mechanical press shall be measured under no-load conditions and in accordance with the single-stroke working specifications. The noise limit of the press shall comply with the provisions of B9974. The noise measurement method shall comply with the provisions of B3623. 3.12.14 The lubrication system shall ensure normal lubrication, and the setting of each sliding point shall be reasonable and reliable. Both ends of the lubrication pipeline shall be numbered for easy inspection and management.
3.12.15 The hydraulic, pneumatic, cooling systems and other parts shall not have lubricating oil, air leakage and mixing. 3.13 Quality control of hydraulic, pneumatic and electrical devices 3.13.1 The hydraulic system of the press shall comply with the provisions of GB.T3766, and the hydraulic components used in the whole pressure system shall comply with the provisions of GB/T7935. The overload protection hydraulic cylinder shall be subjected to a pressure test. When the operating pressure is less than 20MPa, the test pressure is 1.5 of the operating pressure. When the operating pressure is equal to or greater than 20MPa, the test pressure is 125 times the operating pressure. The general maintenance period should not be less than 10 minutes, and the system should not be drained. 3.13.2 The lines, joints, flanges, cylinders, etc. of the pneumatic system should be well sealed, reliably connected, and should comply with GA/T793. 2. Provisions
3.13.3 The working parts of the press should not run dry, stop, or vibrate within the specified range. There should be no obvious impact when changing direction or unloading the bed.
3.13.4 The electrical equipment of the press should comply with the provisions of GBT5226.1. 3.14 Appearance quality
3.14.1 The appearance surface of the press should not have any damage, bumps, depressions, unevenness, or other damage not specified by the process. 3.14.2 The exposed work surface of the press should not have any damage, bumps, scratches, or rust. 3.14.3 The edges of the joint surfaces of the press parts should be neat and level, and there should be no obvious misalignment: the joints between the door and cover edges should be half-closed. 3.14.4 The exposed welds should be straight and level. 3.14.5 The surface of the blued and electrolytic parts should be smooth and free of rust and peeling. 3.14. The nails of the countersunk holes should not protrude from the outer surface of the parts, and there should be no obvious eccentricity between the head and the countersunk hole. The fixed pin should be slightly protruding from the surface of the parts. The tail end of the bolt should be protruding from the motherboard, and the protruding part should not be too long or uneven. 3.14.7 The parts of the force limiter pipeline should be arranged neatly. If necessary, they should be fixed with pipe clamps. They should not be in contact with other parts during operation or operation.
JB/T9964—1999
3.14. Various signs on the press should be clear and durable. The nameplate should be fixed in a conspicuous position, and the fixing position of the sign should be straight, flat and firm, and not tilted.
3.14.9 All unprocessed surfaces of the parts of the press should be painted. The painted surface should be neat, smooth and uniform. 3.14.[0 The coating of the press should comply with the provisions of the relevant standards. 4 Inspection rules
4. General inspection rules
Product inspection is divided into factory inspection and formal inspection: a) Each press should be inspected by the manufacturer before leaving the factory. Under special circumstances, with the user's consent, the following tests can also be carried out in the user's factory:
b) When testing the new product or the old product for transfer to the factory for trial production, the type inspection should be carried out in accordance with the relevant standards: 4.2 Factory inspection items
The factory inspection items of the press generally include the following tests: a) Basic number inspection:
b) Basic performance inspection,
c) Abandonment test;
Noise inspection;
e) Load test:
Overload test:
8) Assembly quality inspection:
h) Precision inspection;
|) Pull pad test:
J) Mobile workbench inspection;
k) Appearance inspection;
Packaging inspection,
4. 3 Basic parameter inspection
Basic parameter inspection should be carried out without negative price. In fact, the measurement error shall not be greater than the specified value in Table 6. Table 6
Test specification
Sliding fast running
Emotion block stroke times
Maximum loading worry high waste
Loading sulfur away from the epidemic
Method: The profit difference is converted into a small amount, still based on the calculation of 6
The quantity is ±1%
The limit number of times *%
Size %
The maximum %
4.4 Basic performance inspection
JR/T9964-1999
Press machine During the idling test or during the idling test, the following performance tests must be carried out: Check the reliability of the safety device:
b) Various standard operation tests of the block operation to check its flexibility and reliability:
d) Check the accuracy and reliability of the indicator and counter:
A.5.1 Each press should be tested for idling. These include: single stroke test, continuous stroke test, inch stroke test, and die height adjustment test
4.5.2 The press machine's continuous idling test time should not be less than 4 hours. The continuous stroke operation test should not be less than 2 hours, and the single stroke operation test should not be less than 1.5 hours.
4.5.3 During the single stroke test, the number of times the brake is engaged per minute should not be less than the number specified in Table 7. 7
Number of strokes per minute
Closed single, double, and point presses
Female single and double point trimming presses
Percentage of single stroke times to the number of times the slider is stroke
: The number of interfaces between two adjacent gears in the table is calculated according to the number of times the slider is engaged, and the percentage is calculated by the method of shelving. 32
4.5.4 When the machine is running at idle, the temperature of each test part should be measured with a point thermometer at the measurable position closest to the moving surface. The total temperature rise and temperature value should not exceed the following requirements: a) The temperature rise of the sliding bearing should not be greater than 35%, and the maximum temperature should not be higher than 70%; b) The temperature rise of the rolling bearing should not be greater than 40%, and the maximum temperature should not be higher than 70%; c) The temperature rise of the sliding guide should not be greater than 15℃, and the maximum temperature should not be higher than 50%; d) The temperature rise of the friction clutch and brake should not be greater than 70℃, and the maximum temperature should not be higher than 100%. 4.5.5 The clutch, actuator and solenoid control valve, etc. should act in a coordinated manner and the linkage should be reliable during the single stroke operation test (including inching stroke).
The crank brake angle of the press should not be greater than 30°4.5. The working mechanism and operating mechanism of the dynamometer should be coordinated with each other. When all working conditions are met, the movement should be horizontal and reliable. When the crank mechanism of the press stops running, the slider should be able to push the pool and stop at the specified position. At the end of a single stroke, the handle should stop at the top dead center, and its actual deviation should not be greater than ".4.6 Noise test
The noise test of the dynamometer shall comply with the provisions of 3.12.13. 4. Load test
Each dynamometer shall be tested with a nominal force. The test method can be the method specified in 4.7.1 or 4.72. The test shall be carried out according to the nominal force (00%). The test shall not be less than three types of JB/T9964- 1999
Use the impact of special body, speed pressure loaders and other corresponding methods to simulate negative test, the test specifications are in accordance with the table. 4.7.2
Precautions for simulated negative belt test
Single stroke negative
Continuous stroke load test
The simulated negative pressure is recommended to be 25% of the nominal force of the sitting machine
1 When the verification specification of 4.72 is adopted, the provisions of 4.52 are no longer carried out. 24.5 2, 4.3, .4 are within the scope of the provisions of 4.72. In the inspection room, load test shall be carried out. All mechanisms shall act in a coordinated manner during the load test, and there shall be no damage to the parts. When equipped with load indicating devices, their correctness of operation shall be checked. 4.8 Overload test. Products with compressed overload protection devices shall be tested for correctness of operation according to the design regulations. In any of the following situations, an overload test shall be carried out at 120% of the nominal force, and the number of tests shall not be less than three times. a) When new products are identified: b) When the modification of old products is sufficient to cause performance changes: The finalized products produced may be inspected, but not less than one per year. 4.9 Quality inspection. The quality inspection of the assembly shall comply with the provisions of 3.12. 4.10 Precision inspection
4.10.1 The precision inspection shall comply with the provisions of GBT10924 or GB10933. 4.10.2 The precision of each press shall be inspected before the idling test and after the full load test. During the inspection, it is not allowed to adjust the mechanism and parts that affect the precision.
4.10.3 The measured data of the load test after the load test is passed shall be recorded in the certificate of conformity. The measured values of the slider and the guide shall generally be recorded in the certificate of conformity.
4.10.4 The total distance of the slider connection part shall be inspected for each press during the factory inspection. The value shall comply with the provisions of Table 9 and the measurement method shall be in accordance with Attachment B ( Appendix 9: Specifications. Table 9: Type of hydraulic tensioning: Total time: Note: Nominal:.
Western axis type
Reverse type
4.11 Anti-tension test
JR/T99641999
Pulling with force for continuous stroke, single stroke (according to the provisions of the table) test if h. 4.11.1 The continuous stroke test of hydraulic tensioning shall be carried out according to the continuous stroke of the press machine! 50%, under the condition of the maximum stroke of the technical seat, 4.11.z The single stroke test of hydraulic tensioning shall be carried out according to the single stroke of the press machine, under the condition of large pressure of the press, 50% of the current stroke, under the condition of large pressure of the press,
4.11.3 Hydraulic tension stop During the test, the hydraulic system should work normally, and there should be no loud impact sound at the pressure regulating port; the pressure wave of the oil red medium pressure knife should not be greater than 30%; the temperature of the hydraulic oil should not be higher than 60°C. 4.11.4 The test of pure air-type pulling pads should be based on the maximum working tension (ejection) force, and the reverse stroke test should be carried out under the maximum stroke condition. When the maximum compression (ejection) force of the pulling pad is greater than 5% of the nominal force of the positive force machine, the test should be carried out according to the requirements of 4.11.1 and 4.11.2. For pure air-type expansion pads with temporary devices, the air fluctuation should not be greater than 20°. 4..5 For the stretching trend with hysteresis action, its synchronization should be checked and adjusted. 4.12 Moving inspection
Inspect the correctness of the clamping, loosening and replacement of the moving workbench and the stretching pad. The reliability of the slider interlock, 4.13 Appearance inspection
The appearance inspection of the press before packaging shall comply with the provisions of 3.14, 4.14 Packaging inspection
The packaging specifications of the press shall comply with the provisions of 5.1. 5 Packaging, marking and transportation
5.1.1 The exposed processed surfaces of the parts, components and accessories of the press shall be coated for protection before installation. The anti-rust requirements shall comply with the provisions of relevant standards.
, 1.2 The packaging requirements of the press and its seasonal components shall comply with the provisions of JB8356.1. 5.2 Marking and post-transportation
The packaging, storage and transportation of the press shall comply with the provisions of GB[91 and the relevant transportation and loading requirements. 5.3 Random technical documents
Each press shall be provided with the following random technical documents: a) Instruction manual;
b) Certificate of conformity;
e) Packing list.
A1 Single-point five-force machine rigidity measurement
41.1 Measurement conditions
a) The die height is adjusted in the middle position:
b) The block should be at the bottom dead center;
JB/I9964-1999
Appendix A
(Required specifications)
Rigidity measurement method
c The press is placed in the middle position in the front and back of the worktable and in the left and right directions, as shown in Figure AI) at the edge of the block level Hm, and an indicator is placed (see Figure A1). The indicator probe touches the lower plane of the slider: A1.2 Linear rigidity measurement
The company evenly distributes the load on a length of 0.66L. When the load gradually reaches 4 of the nominal force of the press 0%, the indicator is adjusted to zero: Note: L is the left and right side of the particle case bolt job
b) When it continues to be worn to [00% of the nominal force of the square machine, record the indicator readings in sections, take its average value, and calculate the stiffness of the small holding velvet under test according to formula (A1],
Where: center
line rigidity, kN/mm;
P press nominal force, kN;
When adding 40%-100% of the special force, the average value of the indicator reading, mm. 1-activity: 2-dyeing block: 3-sweeping path: 4 effective pressure load drop; 5-performance table seat: 6-flat ruler: 7-table plate Al
A2 double point, west point press block and workbench deflection test A2.1 swimming block heat72 During the load test, all mechanisms should act in a coordinated manner and there should be no damage to the parts. When equipped with load indication devices, the correctness of their operation should be checked. 4.8 Overload test For products equipped with overload protection devices, the correctness of their operation should be checked according to the design regulations. In any of the following situations, an overload test of 120% of the nominal force shall be carried out, and the number of tests shall not be less than three times. a) When new products are identified: b) When the modification of old products is sufficient to cause performance changes: The finalized products produced may be inspected, but not less than one per year. 4.9 Assembly quality inspection The assembly quality inspection of the speed machine shall comply with the provisions of 3.12. 4.10 Precision test
4.10.1 Precision test shall comply with the provisions of GBT10924 or GB10933. 4.10.2 Each press shall be tested for precision before the no-load test and after the full-load test. During the test, it is not allowed to adjust the mechanism and parts that affect the precision.
4.10.3 The measured data of the precision test after the load test is qualified shall be recorded in the certificate of conformity. The measured values of the slider and the guide shall generally be recorded in the certificate of conformity.
4.10.4 Each pressure mine shall be inspected for the total time of the slider connection during the factory inspection. The value of the time shall comply with the provisions of Table 9 and the measurement method shall be in accordance with the provisions of Appendix B (Note: Appendix 9). Table 9
Cleaning type
Total time
Note: Nominal:
Western axis type
Sugar type
4.11 Anti-extension pad test
JR/T99641999
Pulling with potential to carry out continuous stroke, single stroke (according to the provisions of the table) test if h. 4.11.1 The continuous stroke test of hydraulic tension shall be carried out according to the Leli machine Continuous stroke power! 50%, under the condition of maximum stroke of the technical seat, 4.11.z The single stroke test of hydraulic tension should be connected to 50% of the single stroke of the press machine, under the condition of large pressure of the pulling pad,
4.11.3 During the hydraulic pulling test, the hydraulic system should work normally, and there should be no strong impact sound at the pressure adjustment port: the pressure wave of the oil red medium pressure knife should not be greater than 30%; the temperature of the hydraulic oil should not be higher than 60℃. 4.11.4 The test of pure air pulling pad should be based on the maximum working force (out), and the reverse stroke test should be carried out under the condition of maximum stroke. The maximum pressure (out) force of the pulling pad is greater than the nominal force of the positive force machine. 5%, the test should be carried out according to the requirements of 4.11.1 and 4.11.2. The air action fluctuation of the pure air expansion pad with temporary device should not exceed 20. 4..5 For the rate of stretching with hysteresis, the synchronization should be checked. 4.12 Moving operation inspection
Check the correctness of clamping, loosening and changing of the moving table and the stretching pad. The feasibility of the slider interlocking. 4.13 Appearance inspection
The appearance inspection of the press before packaging should comply with the provisions of 3.14. 4.14 Packaging inspection
The packaging format of the press should comply with the provisions of 5.1. 5 Packaging, marking and transportation||tt ||5.1.1 The exposed machined surfaces of the parts, components and accessories of the press shall be coated for protection before installation. The anti-rust requirements shall comply with the provisions of relevant standards.
,1.2 The packaging requirements of the press and its parts shall comply with the provisions of JB8356.1. 5.2 Marking and post-transportation
The packaging, storage and transportation of the press shall comply with the provisions of GB[91 and the relevant transportation and loading requirements. 5.3 Random technical documents
Each press shall be provided with the following random technical documents: a) Instruction manual;
b) Certificate of conformity;
e) Packing list.
A1 Single-point five-force machine rigidity measurement
41.1 Measurement conditions
a) The die height is adjusted in the middle position:
b) The block should be at the bottom dead center;
JB/I9964-1999
Appendix A
(Required specifications)
Rigidity measurement method
c The press is placed in the middle position in the front and back of the worktable and in the left and right directions, as shown in Figure AI) at the edge of the block level Hm, and an indicator is placed (see Figure A1). The indicator probe touches the lower plane of the slider: A1.2 Linear rigidity measurement
The company evenly distributes the load on a length of 0.66L. When the load gradually reaches 4 of the nominal force of the press 0%, the indicator is adjusted to zero: Note: L is the left and right side of the particle case bolt job
b) When it continues to be worn to [00% of the nominal force of the square machine, record the indicator readings in sections, take its average value, and calculate the stiffness of the small holding velvet under test according to formula (A1],
Where: center
line rigidity, kN/mm;
P press nominal force, kN;
When adding 40%-100% of the special force, the average value of the indicator reading, mm. 1-activity: 2-dyeing block: 3-sweeping path: 4 effective pressure load drop; 5-performance table seat: 6-flat ruler: 7-table plate Al
A2 double point, west point press block and workbench deflection test A2.1 swimming block heat72 During the load test, all mechanisms should act in a coordinated manner and there should be no damage to the parts. When equipped with load indication devices, the correctness of their operation should be checked. 4.8 Overload test For products equipped with overload protection devices, the correctness of their operation should be checked according to the design regulations. In any of the following situations, an overload test of 120% of the nominal force shall be carried out, and the number of tests shall not be less than three times. a) When new products are identified: b) When the modification of old products is sufficient to cause performance changes: The finalized products produced may be inspected, but not less than one per year. 4.9 Assembly quality inspection The assembly quality inspection of the speed machine shall comply with the provisions of 3.12. 4.10 Precision test
4.10.1 Precision test shall comply with the provisions of GBT10924 or GB10933. 4.10.2 Each press shall be tested for precision before the no-load test and after the full-load test. During the test, it is not allowed to adjust the mechanism and parts that affect the precision.
4.10.3 The measured data of the precision test after the load test is qualified shall be recorded in the certificate of conformity. The measured values of the slider and the guide shall generally be recorded in the certificate of conformity.
4.10.4 Each pressure mine shall be inspected for the total time of the slider connection during the factory inspection. The value of the time shall comply with the provisions of Table 9 and the measurement method shall be in accordance with the provisions of Appendix B (Note: Appendix 9). Table 9
Cleaning type
Total time
Note: Nominal: Www.bzxZ.net
Western axis type
Sugar type
4.11 Anti-extension pad test
JR/T99641999
Pulling with potential to carry out continuous stroke, single stroke (according to the provisions of the table) test if h. 4.11.1 The continuous stroke test of hydraulic tension shall be carried out according to the Leli machine Continuous stroke power! 50%, under the condition of maximum stroke of the technical seat, 4.11.z The single stroke test of hydraulic tension should be connected to 50% of the single stroke of the press machine, under the condition of large pressure of the pulling pad,
4.11.3 During the hydraulic pulling test, the hydraulic system should work normally, and there should be no strong impact sound at the pressure adjustment port: the pressure wave of the oil red medium pressure knife should not be greater than 30%; the temperature of the hydraulic oil should not be higher than 60℃. 4.11.4 The test of pure air pulling pad should be based on the maximum working force (out), and the reverse stroke test should be carried out under the condition of maximum stroke. The maximum pressure (out) force of the pulling pad is greater than the nominal force of the positive force machine. 5%, the test should be carried out according to the requirements of 4.11.1 and 4.11.2. The air action fluctuation of the pure air expansion pad with temporary device should not exceed 20. 4..5 For the rate of stretching with hysteresis, the synchronization should be checked. 4.12 Moving operation inspection
Check the correctness of clamping, loosening and changing of the moving table and the stretching pad. The feasibility of the slider interlocking. 4.13 Appearance inspection
The appearance inspection of the press before packaging should comply with the provisions of 3.14. 4.14 Packaging inspection
The packaging format of the press should comply with the provisions of 5.1. 5 Packaging, marking and transportation||tt ||5.1.1 The exposed machined surfaces of the parts, components and accessories of the press shall be coated for protection before installation. The anti-rust requirements shall comply with the provisions of relevant standards.
,1.2 The packaging requirements of the press and its parts shall comply with the provisions of JB8356.1. 5.2 Marking and post-transportation
The packaging, storage and transportation of the press shall comply with the provisions of GB[91 and the relevant transportation and loading requirements. 5.3 Random technical documents
Each press shall be provided with the following random technical documents: a) Instruction manual;
b) Certificate of conformity;
e) Packing list.
A1 Single-point five-force machine rigidity measurement
41.1 Measurement conditions
a) The die height is adjusted in the middle position:
b) The block should be at the bottom dead center;
JB/I9964-1999
Appendix A
(Required specifications)
Rigidity measurement method
c The press is placed in the middle position in the front and back of the worktable and in the left and right directions, as shown in Figure AI) at the edge of the block level Hm, and an indicator is placed (see Figure A1). The indicator probe touches the lower plane of the slider: A1.2 Linear rigidity measurement
The company evenly distributes the load on a length of 0.66L. When the load gradually reaches 4 of the nominal force of the press 0%, the indicator is adjusted to zero: Note: L is the left and right side of the particle case bolt job
b) When it continues to be worn to [00% of the nominal force of the square machine, record the indicator readings in sections, take its average value, and calculate the stiffness of the small holding velvet under test according to formula (A1],
Where: center
line rigidity, kN/mm;
P press nominal force, kN;
When adding 40%-100% of the special force, the average value of the indicator reading, mm. 1-activity: 2-dyeing block: 3-sweeping path: 4 effective pressure load drop; 5-performance table seat: 6-flat ruler: 7-table plate Al
A2 double point, west point press block and workbench deflection test A2.1 swimming block heat1 Measurement conditions a) The die height should be adjusted in the middle position: b) The block should be at the bottom dead center; JB/I9964-1999 Appendix A (Required requirements) Rigidity measurement method c) The press is placed in the middle position of the workbench, front and back, left and right, as shown in Figure AI) At the edge of the block Hm, put an indicator (see Figure A1, the indicator probe touches the lower plane of the slider: A1.2 Linear stiffness measurement Distribute the load evenly over the length of 0.66L. When the load gradually reaches 40% of the nominal force of the press, adjust the indicator to zero: Note: L is the left and right side of the particle case specification bolt job separation
b) When continuing to wear to [00% of the nominal force of the square machine, record the indicator readings in sections, take its average value, and calculate the stiffness of the small holding velvet under test according to formula (A1],
where: center
line rigidity, kN/mm;
P press nominal force, kN;
plus 40%-100% of the special force, the average value of the indicator readings, mm. 1-activity: 2-dyeing block: 3-sweeping path: 4 effective pressure load drop; 5-performance table seat: 6-flat ruler: 7-table plate Al
A2 double point, west point press block and workbench deflection test A2.1 swimming block heat1 Measurement conditions a) The die height should be adjusted in the middle position: b) The block should be at the bottom dead center; JB/I9964-1999 Appendix A (Required requirements) Rigidity measurement method c) The press is placed in the middle position of the workbench, front and back, left and right, as shown in Figure AI) At the edge of the block Hm, put an indicator (see Figure A1, the indicator probe touches the lower plane of the slider: A1.2 Linear stiffness measurement Distribute the load evenly over the length of 0.66L. When the load gradually reaches 40% of the nominal force of the press, adjust the indicator to zero: Note: L is the left and right side of the particle case specification bolt job separation
b) When continuing to wear to [00% of the nominal force of the square machine, record the indicator readings in sections, take its average value, and calculate the stiffness of the small holding velvet under test according to formula (A1],
where: center
line rigidity, kN/mm;
P press nominal force, kN;
plus 40%-100% of the special force, the average value of the indicator readings, mm. 1-activity: 2-dyeing block: 3-sweeping path: 4 effective pressure load drop; 5-performance table seat: 6-flat ruler: 7-table plate Al
A2 double point, west point press block and workbench deflection test A2.1 swimming block heat
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.