JB/T 10168-2000 Technical requirements for closed high-speed precision presses
Some standard content:
1CS25.120.10
Machinery Industry Standard of the People's Republic of China
JB/F 10168-2000
Closed high speed precision press
Technical requirements
High spced precision straight side press-Technical requirements20-00-01-04 Issued
National Bureau of Machinery Industry
2000-06-01 Implementation
J8/10168-2800
This standard is based on the original GQ2005-89 Closed high speed precision press technical requirements, and is formulated on the basis of absorbing the advantages of similar foreign products and referring to the technical data of similar foreign products after the standardization and rectification. Appendix A, Appendix B and Appendix C of this standard are the appendices of the island. This standard is issued and managed by the National Technical Committee for Standardization of Presses. The drafting unit of this standard: Shanghai No. 2 Press Machine Tool Factory. The main drafter of this standard: Gu Jinming.
This standard was first issued in January 2000.
Machinery Industry Standard of the People's Republic of China
Closed high-speed precision press: Technical case High speed precision sideprrss-Techaical requirements Scope
JB/T10168—2000
This standard specifies the technical requirements, test methods, inspection rules, packaging, marking and transportation of closed high-speed precision presses. This standard is applicable to closed single-point and double-point high-speed precision presses (hereinafter referred to as presses) 2
Cited standards
The provisions contained in the following standards shall constitute the provisions of this standard by reference in this standard. When this standard is published, the versions shown are valid: All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards, GB 191: 1990
Packaging, storage and transportation pictorial marking
Basis of limits and fits Part 3: Tables of numerical values of standard tolerances and basic deviations G0/T1800.3:[9983
GB/T 3766—[983
GB/T $226.1—1996
GB/7932—1987
GB/T 7935--148?
GE/T13306—{991
GB17120—17
JB/TJ829--1997
IR/T3240—1999
JB 3350—1993
JB.T36231984
JB.TB356.I.1996
JB/T R7821998
3 Technical requirements
General technical conditions for pressurized systems
Electrical equipment of industrial machinery Part: General technical conditions General technical conditions for pneumatic systems
General technical conditions for hydraulic components
Forging and pressing machinery
Safety technical conditions
Forging and pressing machinery
General technical conditions
Visualization of operating instructions for pressing machinery
Safety technical requirements for machine tools
Sound test method for forging machinery
Machine tool packaging technology Conditions
Closed high-speed precision press precision
3. The drawings and technical documents of the press shall meet the requirements of this standard, and shall be put into production only after being approved by the prescribed procedures. 3.2 The shape and layout of the press shall take into account the requirements of aesthetics and ergonomics, and facilitate use, maintenance, assembly, disassembly and transportation. 3.3 General requirements
3.3.1 When the press is in normal operation and complies with the use rules, the service life to the first planned overhaul shall generally be 5-B years.
3.3.2 Parameters and dimensions
Approved by the National Machinery Industry Bureau on 2000-81-04 Implemented on 2000-06-01
JB/101682000
3.3.2.1 The press shall be designed with the parameters and dimensions specified in the standard. 3.3.2.2 The parameters and dimensions of the press must be consistent with the product drawings and design specifications: 3.3.3 Accessories, tools and spare parts
3.3.3.1 The press should be equipped with necessary tools, accessories and spare wearing parts when leaving the factory. Special accessories should be agreed upon with the manufacturer, supplied with the machine or ordered separately.
3.3.3.2 The accessories and auxiliary devices of the press shall comply with the relevant regulations and shall be installed on the press for operation test. 3.3.4 Safety and protection
3.3.41 The design of the press must comply with the provisions of GB17120 and JB3350. Its operation must be safe and reliable. When the specifications are not met, continuous travel should not occur. 3.3.4.2 When the motor or flywheel is still rotating, the rotation interval should be marked in an obvious position. 3.3.4.3 The parts of the press that are easy to loosen during operation should have anti-loosening devices or anti-loosening measures. 3.3.4.4 The adjustment of the closed height should be flexible, and the locking of the rod and the screw should be tight. 3.3.5 Rigidity
3.35.1 The knife press should have a reasonable scale. New products or products with improved designs should be tested. 3.3.5.2 The rigidity of the machine should meet the requirements of relevant regulations. The internal test method shall be in accordance with the provisions of Appendix A (the appendix of the suggestion). 3.4 Requirements for castings, weldments and weldments
3.4.1 All castings, weldments and weldments on the machine should meet the requirements of 3.1 in "B" 1829-1997. 3.4.2 The machine body and crankshaft should have material performance certificates or certificates of conformity. 3.4.3 The machine body: sliders, connecting rods, upper worktables, large casters, flywheels and other important castings and weldments should be retrograde aging treatment. 3.5 Requirements for processing
3.5.1 The processing of parts should meet the requirements of the relevant standards. Added 1 The surface should not have burrs, marks and other mechanical damage. Except for special provisions, sharp edges should be weighed. 3.5.2 Important planes
Important working planes such as the machine body work surface, the lower plane of the slider, the lower plane of the work table, etc., the surface roughness should comply with the relevant provisions of 1 juice R2,
3.5.3 The contact surface of the connecting shaft (or ball head) The contact between the connecting shaft (or ball head) and its matching sleeve (or ball soul) should be uniform, and the contact area should not be less than 50%, 3.5.4 Anti-wear measures
Slides, shafts, eccentric rollers, connecting rod shafts (or ball heads) and other important linkage brushes should adopt wear-resistant measures. 3.5.5 Flywheel runout
The residual runout error of the flywheel shall not be greater than the provisions of Table 1. Table
Shanghai wheel control
Two sulfur dynamic control
3.6 Requirements for assembly
JB/T10168-2000
3.6.1 The positive force machine shall also be assembled according to the assembly process specification. The military parts assembled to the press machine shall meet the quality requirements. It is not allowed to install the fast pieces, sleeves, etc. specified in the drawing.
3,6. 2. The fixed joint surface should be tightly fitted. After tightening, it should be checked with a 0.04mm ruler. Only partial insertion of the ruler is allowed. The insertion depth should not exceed 1/4 of the contact surface width, and the cumulative length of the inserted part should not exceed 1/10 of the circumference. 3.6.3 The clutch and brake should work smoothly and coordinately. 3.6.4 The flywheel of the flywheel machine should be subjected to static balance test and calibration. The allowable filter is not half balanced. Calculate Um according to formula [1] =mx(G63
Where: center - flywheel, allowable residual mass is unbalanced, gmm; stroke number is the maximum flywheel working angle, 9: flywheel mass, kg:
mass balance level of flywheel, G6.3-
3.6.5 The circular motion of the flywheel assembly shall comply with the provisions of Table 2. Table 2
Flywheel diameter
Note: The measuring position is about 10mm outside the radial surface. 3.7 Balance
circular frequency tolerance
3.1 The press must have reliable safety devices. During the idling test, no obvious movement is allowed.
3.2 The slide of the press must have a balancing device (balance), and the main parts must be calibrated for movement (balance). 3.9 Hydraulic, pneumatic systems and electrical equipment
3.8.1 The hydraulic system of the press must comply with the relevant provisions of GB/3766. The hydraulic components used in the system must comply with the relevant provisions of GB/7935:
3.8.2 The pneumatic system of the press shall comply with the relevant provisions of B/5226.1. The working parts shall not have any vibration within the specified range, and there shall be no obvious surge phenomenon during reversal and pressure relief. 3.8.4 The design, manufacture and inspection of the press shall comply with the relevant standards and regulations. 3.8.4 The electrical equipment of the press shall comply with the relevant provisions of B/5226.1. 3.8. The lubrication system shall have reliable lubrication status monitoring, signal feedback and alarm functions or devices. 3.9 Noise
3.9.1 There shall be no irregular impact sound, screaming sound or other false sound caused by improper assembly during the operation of the press. 3.9.2 The noise level of the press shall be measured under the condition of no-load operation and the stroke is in accordance with the standard. The noise limit of the press shall not be greater than 82dB (4). The measurement method of the operation shall comply with the provisions of B/5226.1. 3
3.10 Requirements for appearance
JB/T68-2001
3.10, the outer surface of the press should not have any protrusions, depressions or twists not specified by the cabinet support, the joints between the cover and the cover should be smooth, the exposed pipes and the edges should be neatly drawn, and the joints of the outer and outer parts should not have obvious pins. The misalignment should comply with the requirements of Table 4 in JBT1291997
.
3.12 All parts and accessories on the press should be smooth and not damaged. The paint on the surface should meet the requirements of relevant standards. 3.10.3 The main exposed parts should not have any scratches, damage or rust on the surface. 3.10.4 The labels of the press should be clear and durable. The labels should be fixed in a conspicuous place. The fixing position of the labels should be correct, firm and free of material.
3.10.5 The labels of the press should meet the requirements of GB 13306. 3.10.6 The symbols in the labels should meet the requirements of JBT3240. 4 Inspection rules
4. 1 General inspection rules
Each press machine shall be inspected by the manufacturer before it can leave the factory. 4.2 Factory inspection
The press machine shall be inspected or tested according to the following items. 4.2.1 Basic numerical inspection
The basic parameters of the press machine are allowed to be sampled by batch. The number of samples for each batch shall not be less than 10%. The error shall not be greater than that specified in Table 3. 3
Inspection items
Sliding plate
Large die height adjustment
Mounting height adjustment
Water treatment Number
The maximum stroke is +7%
The size is +5%~0
The amount of the setting is +[0%-D
The number of times invited is +[D%-
1The starting effective error is tested in the empty state with the maximum number of times of the bottom force plan. 2 If the filling is less than 1, it is still effective. 1
3 The stroke of the dynamometer slider can be tested according to the maximum and minimum strokes: 4.2.2 Basic performance test
Before the dynamometer is tested or the rate test is completed, , the following basic performance tests should be carried out: 2) Test safety devices
h) Test the slider operation to check its flexibility and reliability; Test the closed height adjustment to check its flexibility and connection device; Test the stroke length adjustment to check its flexibility; Test the slider stroke and the closed variable indication solution; 4
Test the correctness of the counter:
9) Test the semi-scale:
h) Test the attached devices:
i) Test Test lubrication and disinfection device:
) Test pneumatic device:
k) Test filter pressure device;
Test electrical equipment;
m) Test feeding device.
4.2.3 Assembly quality inspection
JB/T10168-2900
Test the assembly quality of the press according to the content of 3.6. 4.1.4 No-load test
The no-load operation time should not be less than 6.5h, and the no-load operation time under each process should not be less than the requirements of Table 4. 4. 2. 4. 1
Change number
+/54 yuan
n,1345a
n,+4/54
1% is the minimum stroke of the machine per minute. 2 is the difference between the maximum stroke number and the minimum stroke number per minute of the machine. 4.2.4.3 Wet knife of bearings, guide rails, etc.
After the low-pressure machine is running, the measurable part with the highest heat generation of the above parts shall be measured. The temperature rise and maximum temperature shall not exceed the following provisions:
The temperature rise of sliding bearings shall not exceed 40°C, and the maximum temperature shall not exceed 70%; 6) The temperature rise of rolling bearings shall not exceed 40°C, and the maximum temperature shall not exceed 70°C; c) The temperature rise of guide rails shall not exceed 15°C, and the maximum temperature shall not exceed 50%; 4.2.5 Load testbzxz.net
Each machine shall be subjected to the maximum nominal force test. 4.2.5.1 Use coin to hit rigid body hydraulic loader or other similar methods to simulate injury test. The test specification shall comply with the provisions of Table 3,
test force
50% nominal force
100% nominal force
" and is the number of small and large strokes of the press machine, 2 is the number of short and large strokes of the press machine per minute. JB/L:10168—-2000
No. of Articles
(n,*,J2
(5,n)2
Test Time
4.2.5.2 All mechanisms shall be coordinated and reliable during load test, and parts shall not be damaged. When the load indicator is installed, the correctness of the operation shall be tested.
4.2.6 Noise Test
Test the noise of the specified position according to the requirements of 3.9. 4.2.7 Accuracy Test
4.2.7.1 The accuracy of the machine shall be tested after the full load test, and its accuracy test shall comply with the provisions of B8782. 4.2.7.2 The machine shall be tested before leaving the factory The total clearance and eccentric clearance of the force-applying mechanism shall be tested in accordance with the provisions of Appendix B (suggested Appendix), and the allowable value shall comply with the following provisions:) The allowable value of the total clearance of the force-applying mechanism shall be in accordance with the formula (2)): [e] = 0.10 +
Where: [el ...
4.1.9 Life test
When working in two shifts, the service life before the first scheduled overhaul shall comply with the provisions of 3.3.1. 4.2.10 External inspection
The external appearance inspection of the machine shall comply with the provisions of 3.10. 4.2.1 Packaging inspection
The packaging inspection of the machine shall comply with the provisions of Article 5.6
5 Packaging, marking and transportation
5.1 Packaging
JB/T10168-2000
5.1.1 The external surface of the parts, components and accessories of the small machine shall be sealed before packaging, and its water-proof requirements shall comply with the relevant provisions of the relevant standards.
5.1.2 The packaging requirements of the press and its parts and components shall comply with the provisions of JB/T8356.1. 5. 2 Marking and Transportation
The packaging, storage and transportation markings of the press shall comply with the provisions of GB191 and the relevant transportation and loading requirements. 5.3 Technical Documents of the Press
Each press is provided with the following technical documents: a) Instructions for Use: b) Certificate of Qualification: c) Packing List. A1 Single Point Press Attachment Measurement Method
JE/T 10682000
Anhydride Record A
(Time Record)
Measurement Method
A.1 The pressure slide stroke is at the bottom dead center, and the die height is adjusted in the middle position. At the middle of the workbench, the hydraulic pressure is cut off, as shown in Figure A1,
A1.2 At the edge of the original block (0 (! For the bottom half of the block, the force is from the bottom to the left and right inches), set two pushers according to Figure A1. Indicator. Make the indicator probe point on the lower half of the pedal. When the uniform load on the length of 0.66 (the distance between the tightening screws) is continuously applied to 40% of the nominal force of the press, the indicator is equal. When it continues to be reduced to 100% of the nominal force, record the indicator readings in sections: take the average value 4, and then make two changes to the above potential to obtain 4,, 4, and calculate the stiffness of the measured H machine according to formula (A1): rg
.+ 4.- 4
Wherein: C--brush degree, kN/mm;
P press nominal force, kN:
When the nominal force is 40%-100%, the indicator shows the average value of the number, four e
1-gain, 2-pad; 3-dial indicator, 4-liquid loader: 5-working table Figure A]
A7 Two-point press slide and working control degree measurement method A1.1 Slide degree
height 2.1.1 Check the bottom dead center of the press slide, adjust the die height to the middle position, between the two connecting rods L, the length 1: evenly distributed load, as shown in Figure A2.
A2.1.2 Indicators 1, 2, 3 are connected as shown in Figure A2, and are placed on the stand [shown by the dotted line]. The indicator stand should be as close to the symmetric center line of the operation as possible. Indicators 1, 2, 3 are located at the center of the allowable force and the minimum force of the block respectively. The indicator probe should be vertically placed on the bottom of the block and the indicator should be loaded.
JBFT10168-2000
When the load is loaded to the nominal force of the force machine, record the reverse value of the indicator. Formula (A2) and formula (A3) are used to calculate the maximum force of the test press 4.-- 4
Where: 4, the deformation of the slide, m:
4,, 4,, 4.- are the readings of each indicator, mm; the left and right dimensions of the slide bottom surface,
one block of friction, mm/m.
A2.2T workbench platen displacement
A2.2.1 The stroke of the slide of the press is at the dead point, the die height is adjusted to the middle position, and the load is evenly distributed over the length of 0.661 between the two tensioning and turning inspections, and Figure 2 is added.
A1.1.2 Indicator 1 is placed on the F side in the middle of the workbench as shown in Figure 2. The indicator group and the frame should be as close as possible to the symmetric center line of the lower workbench. The indicator number bottom is directly on the lower workbench and the indicator is arranged before loading. When loaded to the nominal force of the press, record the reading of indicator 1, which is the deformation of the T workbench platen. The main
T workbench thickness is calculated according to formula (A4), mm/m
Workbench deformation, mm;
Height of a plate, ms
Measurement method
JB/T101682090
Appendix B
(Appendix of tips)
Time measurement method
The stroke of the press slide is at the bottom dead center. The height of the gauge is adjusted to the middle position. After the load test, place the loader at the specified position of the workbench and load it according to 5% of the nominal force of the press. B2 Total gap measurement
The loader is placed in the center of the workbench and loaded according to the provisions of B1. B2.1 Place an indicator near the center line of the connecting rod (see Figure B). The total clearance is calculated based on the maximum reading of the indicator before and after loading. For a double-point press, place an indicator at the center line of each connecting rod (see Figure H2). B3 Measure the clearance with the body. Place the indicator and the indicator as shown in Figure B3. Load according to B1, record the readings of the two indicators, and calculate the eccentric clearance of the press according to formula (B1): eccentric clearance, Tam/m
, - the number of indicators 1 and 2, mm
· Dimension of the sliding surface in the right direction, m
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