JB/T 9874-1999 General technical requirements for metal cutting machine tool assembly
Some standard content:
ICS25.080
Machinery Industry Standard of the People's Republic of China
JB/T9874-1999
General Technical Conditions for Assembly of Metal Cutting Machine Tools
Published on 1999-05-20
National Machinery Industry Bureau
Implementation on 2000-01-01
JE.T9874-1999
Revision of the standard to Zn50008.3--8 General Technical Conditions for Assembly of Metal Cutting Machine Tools 3: The original version was formulated based on the experience of our machine tool products for many years in the tertiary industry. The technical content of the previous version can still meet the current technical requirements and is applicable to production and use. This standard is consistent with the technical content of 2B150008.3--38 and has only been re-edited according to relevant regulations. This standard is in effect, and the 2B150008.388 standard is issued by the National Metal Cutting Machine Standard Beijing Technical Committee, and this standard is under the jurisdiction of the National Metal Cutting Standardization Technical Committee. The responsible unit of this standard is Beijing Taomo Research Institute. This standard was first issued in June 1588.
1 Standard of the People's Republic of China Machinery Industry Standard
Metal Cutting Machine Tools
General Technical Conditions for Assembly
This standard specifies the technical requirements for assembly of metal cutting machines (with simplified machine tools) during assembly. This standard applies to the assembly of parts (groups) and general assembly of metal cutting machines. 2 Reference Standards
JB81990
Japanese Standards [5098.3—88
The provisions contained in the following standards are the provisions of this standard when they are cited in this standard. When this standard is published, all versions are valid. All standards are subject to revision. Parties using this standard should explore the possibility of applying the newest versions of the following standards: GB/T 5226.I.—J996
GB/T 79321987
GB/T 9061-1988
JH 579—[99]
JH75563-1591
JB/T 981194y
JB/T 9876.[999
JB.T!00S[—199
3 Basic requirements
Electrical equipment for industrial machinery Part 1: General technical requirements General technical requirements for pneumatic systems
General technical requirements for metal cutting machine tools
General technical requirements for sliding guides before metal cutting machine tool surface color inspection and evaluation
Metal cutting machine tool accuracy classification
Metal cutting machine joint surface color inspection and evaluation General technical requirements for hydraulic systems 3.1 Machine tool base drawing and assembly 1 Technical specifications The parts and components (including external parts) assembled and matched to the end of the machine shall meet the requirements of the design. Patches and the like specified in the drawing shall not be placed. 3.2 The assembly environment shall be clean. For parts with high precision requirements, the assembly environment should meet the requirements of the relevant provisions, 3.3 During assembly, the parts should be cleaned, and during the assembly process, the parts should not be scratched, rusted, and the joint and exposed surfaces of the parts should not have traces of repair and grinding. 3. After assembly, the end faces of the bolt head and nut should be in contact with the plane of the parts around the tightening, and there should be no slant or gap when assembling the parts. The bolts and nuts should not be loose, and the tightening force of the screws should be consistent.
3. When tightening the nuts, the stop pads of each part should meet the requirements of the movement. According to the structure, the stop pads can be replaced by the glue with low strength and medium strength.
3.6 Machine! After the moving and rotating parts are assembled, the movement should be horizontal, flexible, light, and without blocking. The displacement mechanism should ensure accurate and reliable positioning.
3. The machine tool has a wheel that is engraved on it. The front and rear clearance of the flat handle assembly should be determined in the delivery conditions of various types of machine tools. The National Machinery Industry Association approved it on May 20, 2000 and implemented it on January 1, 2000.
B/9871999
3, & is a machine end with "small and medium" installation. Its "throttling ratio" should meet the design requirements of Mo Rong, the bottom of the construction, and the auxiliary should be light. Yinghuo||tt| |3.9 The assembly of high-speed rotating parts and components shall be subjected to half-balance test. 3.10 The assembly of the concentrated system shall comply with the relevant provisions of 10051. 3.11 The assembly of the electrical system shall comply with the relevant provisions of GB/T5226.1. 3.12 The assembly of the pneumatic system shall comply with the relevant provisions of GB/T7932. 3.13 The speed accuracy level of the standard motor shall comply with the absolute accuracy level of 1RT9871. 1. Assembly of components
4.1 Assembly of the spindle and the main shaft
4.1.1 When assembling the main shaft bearing, the high and low point marks of the inner ring of the auxiliary shaft journal bearing should be connected to the machine with a precision grade of above grade, and the main shaft movable bearing should be matched. 4.1.2 The whole body of the machine tool, sleeve (except the chain hole of the loading head), etc., should be matched with the gauge. The contact of the tooth should be close to the large end, and the actual connection degree should be consistent with the working length. The contact ratio of the degree shall not be as specified in the following table 1. The inspection shall be carried out according to B/[5563,
: The special requirements of the body shall be close to the small size!
Expansion bed fine thinking level
Level 4 and level 1.
4.1.3 The main single pocket parts rotating at high speed shall be tested after cleaning 4.1.4 The chain and the guide of the installation shall be flat and hungry. After the moving parts are installed, the moving total contact ratio shall be flat
4.1.5 The flat chain and key should not be damaged. After the flat chain is installed, it should be connected with the key. The two ends of the key are not allowed to lift. 4.2 Assembly of bearings
4.1. When assembling adjustable bearings, the components should be adjusted in place. 4.2.2 Assemble the bearings to keep their positions correct and the loads are not damaged. 4.2.3 For machine tools of grade 5 and above, the spindle bearings should be cold-mounted and installed alternately. 4.2.4 When assembling the three-way fitting bearings with heat treatment, the temperature should be even and below 0°C. 4.2.5 The contact between the positioning belt and the bearing cover and the gasket or the outer net should be even. After the shaft valve is assembled, the spacer ring should be tightened. 4.2.6 The auxiliary bearing oil should be used. 4.2.7 The grease should be suitable for the grease lubricated shaft. The grease should comply with the relevant regulations. 4.3 Gear assembly
4.3.! When the fit between the gear and the pulley is changed or the interference fit is changed, it should be specified in the sample and technical documents. 432 The high gear of the transmission is used to install the electric circle. A number of technical documents are used to make the normal flower wheel assembly. The general position of the throat force
J8719874-1999
4.3.36 The gap between the grade and grade of the gear after the grade is changed to the higher precision grade. The grade should be in the figure 4.3.4 The degree of tolerance of gears with precision of 5 and above after assembly shall be specified in the drawings and technical documents. 4.3.5 The rolling contact of gears with gear pairs and frequency gears after assembly shall be specified in the drawings and technical documents. 4.3.6 The positioning of the assembled gears along the axis shall be accurate and reliable. 4.3.7 When the screw nut is used to fix ten gears on the same axis, the tightening direction shall be moderate. 4.1. When assembling gears by the servo method: The temperature shall be uniform, except for the carbon gear, and the temperature shall not be higher than 250℃. 4.4 Thread and thread 4.4.1 When assembling threaded products: The parallelism of the thread and the moving part with it shall comply with the requirements of the drawings or technical documents. 4.4.2 When assembling the screw and the nut, the clearance shall comply with the requirements of the drawings or technical documents. 4.4.3 It has the function of eliminating the gap between the mechanism and the screw. The adjustment of the assembly piece should be in accordance with the design: 4.5 Assembly of the parts
4.5. The various seals assembled on the machine tool should not be damaged. The seal parts and surfaces of the assembly H and the shaft should be free of grease
1.5.2 The surface of the seal should be pressed by the medium to prevent the shaft from being pressed by the pressure
1.5. When the two parts are overlapped, the pressure should be relatively large. The small direction should be the side with the larger force. 4.6 Transmission box installation
4.6. The main transmission box of the machine with grade 1 and above accuracy should be refitted. 4.6.2 The direction of the gear is misaligned. When the meshing inner wheel width is less than or equal to 20mm, it shall not be greater than 1mm. When the meshing wheel rim is greater than 20mm, it shall not exceed 5% of the rim width. H shall not be greater than 5mm Note: When the gear wheel is pressurized, the oil shall be displaced as much as possible according to the maximum rate. 4.6.3. After the main transmission is assembled, an idling test should be carried out, and the machine tools with interchangeable gears and multi-speed transmission can be operated at low, medium and high speeds. The multi-speed operation time shall not be less than 2m, and the maximum speed operation time shall not be less than 100m. The following items shall be inspected: 1. The system flexibility and reliability of the speed control mechanism: it shall operate smoothly, without abnormal sharp or irregular knocking noises; 2. When the shaft bearing reaches a stable temperature, its temperature rise shall comply with the provisions of GB/T90G or various technical regulations for machine tools of various types: 3. The oiler of the lubrication system shall be unobstructed, without any seal, and no leakage shall occur at all joints. Oil phenomenon:) The radial direction of the main axis should be inspected and tested according to the various types of anti-bed precision inspection standards. 1.6. After the transmission box is in place, the iron filings and debris on the box body should be removed and cleaned. After the idling test, it should be cleaned. 4.7 The installation of all parts and components
4.1 The system and frequency of the machine end should be guaranteed to ensure its flexibility and reliability after assembly: 4.7.2 The clutch and its control structure should be able to engage and open at different points after assembly: it can be connected, and it can be made into a stock system. 4.72 or room machine account, 4 assembly production 5 machine tool assembly
JB/T9874-1999
5.! During the assembly of the machine tool, the installation level of the machine tool should be adjusted first to prevent it from getting lost. 5.2 The contact points of the mating parts should be checked. 5.2.1 The scraped surface should not have any mechanical marks or obvious knife marks. 5.2.2 The joint surfaces of the two mating parts are both lead surfaces. When the contact surface (grinding tool) of the mating parts is used for the trace fish method inspection, the scraped surface should be: calculated according to the specified calculation area, within the area of 25mm×25mm, the contact points shall not exceed the provisions of Table 2. 5.2.3 The joint surfaces of the two mating parts are one scraped surface and the other is the machined surface. When the contact points of the scraped surface are inspected with the machined surface of the mating parts, the number shall not be less than 75% of the number of points specified in Table 2. 5.2.4 The number of low points in one or two places within the area of 1m25mm in each individual shall not be less than 50% of the number of points in Table 2. 5.2. The number of contact points of the static pressure guide rail shall not be the same as the number of points in Table 2. The effect of the fixed points in Table 2 is: +
When the combination of two buckets is a guide rail of different widths, the number of fixed points of the guide rail shall be calculated according to the difference, and the average number of points in the machine surface of the hydrogen 25m back-25m before the average number of points: M grade agent is used as 1. The precision of the machine tool and the machine tool, the machine tool of the correct bed is less than or equal to 10 grade light resistance, and the area of the test point is red lead polyester material. Sliding [deep dynamic guide machine
Each guide defect is located at the bottom of the skin
and the grade is Sichuan grade!
1 ≤100 —>100
: Plastic and effect research connection point according to the design requirements: 12
Ten cat sliding bearing
sliding new and
special classic
solid joint surface
5, 3 using the machine to restore the standard T decision plus T two parts of the joint surface, the use of color method to test the connection situation, the price test to reach the specification of 76. The connection should be all reached, the dynamic index shall not exceed the following table 3: machine technology benefit level
! Level and training level above!
JB/T9874—1999
. ! ）Dynamic fold
All system
Chairman:
【Only the specified indicators can be used as the length of the stop measurement: 2 policy compensation machine matching guide touch indicators control
5.4 grams of fixed combination and economic special fixed combination surface original cumulative close fit. Points
Meeting width:
More fixed fine platform pre-tightening system 4 new case inspection agency shall not arrest people 5.4.1
Hold the jade baby station production surface
Full length #
5.4. Some special joint surfaces are inspected by color coating method, before and after the solidification, the feeler gauge inspection specified in Table 4 is not allowed, and the special machine tool is not a straight joint surface. Only the case is still verified. 5.43
Hongyuan wave
G: r14
5.4.4 When using a variable ruler for inspection, the depth of the scanned probe at the specified layer (one or two places) is less than 1/5 of the width of the joint surface, the H center is less than 5mm and the insertion depth is equal to 5 of the joint length, and the measurement is not greater than 5.5. In addition to the coloring, the displacement table should also be tested by 0.4mm. The insertion depth of the slide at the guide, the insert strip, and the plate end shall not be greater than the preset depth in Table 5. 5
Machine tool
! The guide system is called 1. The working state is controlled by signing
2. The lowering and holding of Ningzhi is carried out in a way and the method is used to grab the color
5.b. After the assembly, the active whole car should be trapped. V level and civil level accuracy are the same as the machine
and the level and the number of degrees are used to train the wood
5.! The rail surface of the roller is evenly contacted with the center of all rollers, and the movement is light and flexible, without group pollution. 38 static teaching, the lifting difference of the moving part of the four systems shall not exceed the setting requirements 5
5.0 The guide effect of the B35 is free of
JR9874—1999
5.10 The carrier plate of the guide rail should be tightly fitted with the base body, and the bonding is flat: 5.Ⅱ The guide rail joint piece of the bed guide rail spliced by the guide rail and the adjacent guide rails The misalignment shall not exceed the requirements of Table 6. 5.12 The contact length of the main pin shall not be less than 60% of the center of the workpiece, and the ratio of the main pin to the joint shall be evenly distributed. 5.3 The tension of the belt shall be sufficient after installation, and the main and driving pulleys shall be in symmetry with the surface of the pulley. The transmission belt shall have no obvious signs of pulsation. For V-belt drives with more than two pulleys, the tightness of the belt shall be consistent after assembly. 5.14 The drive and control devices supplied with the machine shall be installed and tested on the machine. 5.15 The clearance requirements after the machine tool is assembled shall comply with the requirements of the relevant standards. 5.16 After the machine tool is assembled, it shall be fully inspected and tested according to the provisions of B9061 and other relevant standards.Precision absorption machine tools and machine tools, the bed is less than or equal to 10 grade light-resistant allowance area plus ㎡, the witness ten about the bed surface calculation will be the test point of the medium for the red lead polyester material
Jingle. Slide [deep dynamic guide machine
each guide defect environment
muscle dyeing section bottom science level
Sichuan level and with!
1 ≤100 —>100
: plastic and effect research of the connection point effect according to the design provisions: 12
ten cat sliding can bear
sliding new and
support special gold classic
solid joint surface
5, 3 using machine recovery T decision plus T of the two parts of the joint surface, the use of color method to give the test situation, the price test reached the specification of 76. The joints should be evenly connected, and the joint indicators should not exceed the requirements of the following table 3: The machine technology includes the benefit level
! Level and training level!
JB/T9874-1999
. ! ) The whole system is on
Chairman:
【Only the specified indicators can be used as the length of the calculation section: 2 policy compensation machine matching guide touch indicators control
5.4 grams of fixed combination and economic special fixed combination surface original cumulative close fit. Refers to the width:
Change the fixed table pre-tightening indication system 4 newly specified inspection company shall not arrest people 5.4.1
Hold the jade baby internal fixed station production surface
full length #
5.4. Except for some special joint surfaces inspected by color coating method, the feeler gauge inspection specified in Table 4 before and after fixing is not required, and the special joint surfaces of machine tools, etc., which are not straight and level, can only be verified in the case. 5.43
Hongyuan wave
G: r14
5.4.4 When using a variable ruler for inspection, the depth of the scanned probe at the specified layer (one or two places) is less than 1/5 of the width of the joint surface, the H center is less than 5mm and the insertion depth is equal to 5 of the joint length, and the measurement is not greater than 5.5. In addition to the coloring, the displacement table should also be tested by 0.4mm. The insertion depth of the slide at the guide, the insert strip, and the plate end shall not be greater than the preset depth in Table 5. 5
Machine tool
! The guide system is called 1. The working state is controlled by signing
2. The lowering and holding of Ningzhi is carried out in a way and the method is used to grab the color
5.b. After the assembly, the active whole car should be trapped. V grade and civil grade accuracy are equal to the machine
and the grade and the number are trained by the wood
5.! The rail surface of the roller is evenly contacted with the center of all rollers, and the movement is light and flexible, without group pollution. 38 static teaching, the lifting difference of the moving parts shall not exceed the setting requirements 5
5.0 The guide effect of the B35 is free
JR9874—1999
5.10 The carrier plate of the guide rail should be tightly fitted with the base body, and the bonding is flat: 5.Ⅱ The guide rail joint piece of the bed guide rail spliced by the guide rail and the adjacent guide rails The misalignment shall not exceed the requirements of Table 6. 5.12 The contact length of the main pin shall not be less than 60% of the center of the workpiece, and the ratio of the main pin to the joint shall be evenly distributed. 5.3 The tension of the belt shall be sufficient after installation, and the main and driving pulleys shall be in symmetry with the surface of the pulley. The transmission belt shall have no obvious signs of pulsation. For V-belt drives with more than two pulleys, the tightness of the belt shall be consistent after assembly. 5.14 The drive and control devices supplied with the machine shall be installed and tested on the machine. 5.15 The clearance requirements after the machine tool is assembled shall comply with the requirements of the relevant standards. 5.16 After the machine tool is assembled, it shall be fully inspected and tested according to the provisions of B9061 and other relevant standards.Precision absorption machine tools and machine tools, the bed is less than or equal to 10 grade light-resistant allowance area plus ㎡, the witness ten about the bed surface calculation will be the test point of the medium for the red lead polyester material
Jingle. Slide [deep dynamic guide machine
each guide defect environment
muscle dyeing section bottom science level
Sichuan level and with!
1 ≤100 —>100
: plastic and effect research of the connection point effect according to the design provisions: 12
ten cat sliding can bear
sliding new and
support special gold classic
solid joint surface
5, 3 using machine recovery T decision plus T of the two parts of the joint surface, the use of color method to give the test situation, the price test reached the specification of 76. The joints should be evenly connected, and the joint indicators should not exceed the requirements of the following table 3: The machine technology includes the benefit level
! Level and training level!
JB/T9874-1999
. ! ) The whole system is on
Chairman:
【Only the specified indicators can be used as the length of the calculation section: 2 policy compensation machine matching guide touch indicators control
5.4 grams of fixed combination and economic special fixed combination surface original cumulative close fit. Refers to the width:
Change the fixed table pre-tightening indication system 4 newly specified inspection company shall not arrest people 5.4.1
Hold the jade baby internal fixed station production surface
full length #
5.4. Except for some special joint surfaces inspected by color coating method, the feeler gauge inspection specified in Table 4 before and after fixing is not required, and the special joint surfaces of machine tools, etc., which are not straight and level, can only be verified in the case. 5.43
Hongyuan wave
G: r14
5.4.4 When using a variable ruler for inspection, the depth of the scanned probe at the specified layer (one or two places) is less than 1/5 of the width of the joint surface, the H center is less than 5mm and the insertion depth is equal to 5 of the joint length, and the measurement is not greater than 5.5. In addition to the coloring, the displacement table should also be tested by 0.4mm. The insertion depth of the slide at the guide, the insert strip, and the plate end shall not be greater than the preset depth in Table 5. 5
Machine tool
! The guide system is called 1. The working state is controlled by signing
2. The lowering and holding of Ningzhi is carried out in a way and the method is used to grab the color
5.b. After the assembly, the active whole car should be trapped. V level and civil level accuracy are the same as the machine
and the level and the number of degrees are used to train the wood
5.! The rail surface of the roller is evenly contacted with the center of all rollers, and the movement is light and flexible, without group pollution. 38 static teaching, the lifting difference of the moving part of the four systems shall not exceed the setting requirements 5
5.0 The guide effect of the B35 is free of
JR9874—1999 www.bzxz.net
5.10 The carrier plate of the guide rail should be tightly fitted with the base body, and the bonding is flat: 5.Ⅱ The guide rail joint piece of the bed guide rail spliced by the guide rail and the adjacent guide rails The misalignment shall not exceed the requirements of Table 6. 5.12 The contact length of the main pin shall not be less than 60% of the center of the workpiece, and the ratio of the main pin to the joint shall be evenly distributed. 5.3 The tension of the belt shall be sufficient after installation, and the main and driving pulleys shall be in symmetry with the surface of the pulley. The transmission belt shall have no obvious signs of pulsation. For V-belt drives with more than two pulleys, the tightness of the belt shall be consistent after assembly. 5.14 The drive and control devices supplied with the machine shall be installed and tested on the machine. 5.15 The clearance requirements after the machine tool is assembled shall comply with the requirements of the relevant standards. 5.16 After the machine tool is assembled, it shall be fully inspected and tested according to the provisions of B9061 and other relevant standards.
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.