JB/T 9885-1999 This standard is a revision of ZB J58 005-88 "Technical requirements for the manufacture and acceptance of hydraulic slides for modular machine tools". This standard is a concretization and supplement to GB/T 9061-1988 "General technical conditions for metal cutting machine tools". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies the manufacturing and acceptance requirements for hydraulic slides for modular machine tools. This standard is applicable to hydraulic slides for modular machine tools with a nominal size of 100~800mm (including long table type). This standard was first issued in 1988. JB/T 9885-1999 Technical conditions for hydraulic slides for modular machine tools JB/T9885-1999 Standard download decompression password: www.bzxz.net

IC.5 25. 060.99
Machinery Industry Standard of the People's Republic of China
JB/T9885-1999
Combined hydraulic slide
Published on 1999-05-20
Technical conditions
2000-01-01 Implementation
State Bureau of Machinery Industry
JB9885-1999
This standard is revised on the basis of ZBJ58005-88 "Technical requirements for manufacturing and acceptance of combined machine tool pressure reducing slides". This standard is the concretization and supplement of GB90611988 (General Technical Conditions for Metal Cutting Machine Tools). This standard is consistent with the technical content of ZBJ58005BB, and has been revised according to relevant regulations. This standard replaces ZBJ58005-8 from the date of implementation. This standard is proposed by the National Metal Cutting Machine Tool Standardization Technical Committee. This standard is under the jurisdiction of the Combined Machine Tool Branch of the National Metal Cutting Machine Tool Standardization Technical Committee. The responsible unit for this standard is Dalian Combined Machine Tool Research Institute. This standard was first issued in 1988. | |tt||Standard of the Machinery Industry of the People's Republic of China
Combined Machine Tools
Technical Conditions for Hydraulic Slide Tables
Sub-standard specifies the manufacturing and quality requirements for combined machine ball filters and platforms. This standard uses the standard for combined machine filter pressure cleaning platforms (including long platform types) with nominal sizes of 100~800 in the sub-standard
JB/T9885-1999
Generation 2BJ58005-8
[The text contained in the following standards constitutes the provisions of this standard through 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 and GB/T 3668.41983
GB/T9061 — 1988 ||tt || 39971944
JE/T 9872—1999
JB.T 9874—J999
JAT9876-1999
IR/T98891949
JB.T 100SI-1999
3 General requirements
Common parts of modular machine tools Dimensions of tables
General technical conditions for metal cutting machine tools
Technical conditions for modular machine tools
Common parts of modular machine tools Slides (long table type) Sliding guides Technical conditions for fluorine coating General technical conditions for environmentally friendly sliding guides Technical conditions for metal cutting machine tool gray iron parts Specifications and dimensions
General technical conditions for metal cutting machine tool machine parts General technical conditions for metal bottom cutting machine tool assembly Inspection and evaluation of metal surface coating method for modular machine tool slides
General technical conditions for pressure change system of metal cutting machine tools When accepting the slide according to this standard, B906 must be checked at the same time! , B/9872, D974, B1534 and other standards that are not specified in this standard. 4 Random accessories
4, [The manufacturer shall have the seals of the standard, and the number of parts shall be twice the number of the load used by the user. 4.2 The standard parts must be equipped with fastening frequency and positioning pins for installation. Note: Standard parts and standard parts are generally marked with corresponding marks or specifications. 5 Manufacturing quality
5. 1 General requirements
Approved by the National Machinery Industry Bureau on May 20, 1999, and implemented on January 1, 2000
JB/T9885-1999
5.1 The contact dimensions of the hydraulic table shall comply with the provisions of GB/T3668.4, and the contact dimensions of the long surface type hydraulic table shall comply with the provisions of JB/T2462.8 and the corresponding technical documents. 5.1.1 The technical conditions of grey cast iron parts shall comply with the provisions of JBT3997. 5.1.3 For parts that have passed the inspection, all external oil ports shall be matched with oil seals (paper, yarn, wooden plugs, etc.). 5.2 The performance of the coating material or plastic guide plate of the sliding rail shall comply with the provisions of B/T3578. The performance and requirements of the coated guide rail shall comply with the provisions of JB/T3579.
53 The straightness of the seat body in the vertical plane is not allowed to be []. 5.4 Oil inlet
5.4.1 The oil inlet shall be tested separately on the corresponding test bench and shall comply with the corresponding test conditions. 5.4.1.1 The oil used in the test equipment shall meet the following requirements: 1) Oil temperature: During the test, the temperature of the oil entering the test cylinder shall be maintained within the range of 50±5T; 2) Viscosity: The kinematic viscosity of the oil is 1723mm/g, Note: 1mms-1cSt.
3) Over-precision: shall not be less than 50μm
4) The oil shall have anti-casting ability
5.4.1.2 The pressure gauge used in the test shall meet the following requirements: 5) Accuracy: The error during the test shall be less than ±1.5%. b) Range: The test pressure is a direct-reading pressure gauge, and its range is 140%~200% of the test pressure. c) Installation position: When measuring pressure swing, the inner diameter of the pressure connecting pipe is 4mm and the length is less than 300mm. It is connected to the working pressure gauge at about 100mm from the inlet of the drum test element (4 is the inner diameter of the working pipeline: about 00mm from the outlet) (it shall not be installed at the potential angle). When the pressure of the drum vibrates, the square gauge shall be equipped with a damper. 5.4.2 Test run of oil lifting
5.4.2.1 Test run and stroke measurement
The oil cylinder to be tested is installed on a corresponding test bench and reciprocated in full stroke under air conditions. At this time, there shall be no abnormal phenomena such as external leakage and impact. When fixing, stop the ends of the oil cylinder at the two ends of the stroke respectively, and measure the full stroke. The length of the stroke shall meet the design requirements: Www.bzxZ.net
5.4.2.2 Test of resistance to movement of piston rod Under the condition that the piston rod is not subjected to load, a pressure sleeve is passed into the forward chamber of the cylinder to make the piston rod move at a certain feed speed. The measured pressure shall not exceed the values ​​listed in Table 1. Table 1
Diameter of hole
! The internal effect of the table is only suitable for the sealing of the piston rod with the seal of port, U, X, and type. 2 This standard is different from the "table" pressure of the pressure gauge. 2
5.4.2,3 Leakage test
JH/T9885—1999
Pass the pressure oil into the forward chamber of the piston cylinder, unscrew the pipe joint of the backward chamber, and force the outer reducer upward, and the joint enters the sleeve. The pressure is gradually increased to 6.30MPa (the forward pressure of the long table type slide cylinder should reach 4.00MPa), and the pressure is maintained for 30s. Then the oil filter at the leakage port of the disc is measured as a minute to avoid mixing. The piston stops at two positions of the oil ring. The first position: the piston is located in the middle of the oil ring. The second position: the piston is 0mm away from the end cover of the retreat chamber (the long table type slide is not tested in this position). The oil leakage shall not exceed the values ​​listed in Table 2. Table 2
Red hole diameter
Non-required quantity
5.4.2.4 External inspection
Move the plug at a certain speed and make 30 forward and backward differential movements in the full stroke. At this time, the intelligent joints of the cylinder and the seals of the cylinder belt are all. No oil leakage is allowed, and the piston rod The amount of external leakage at the oil proof cover should not be full. The inspection should be carried out under the pressure of 0.50MPa and 6.3DMPu in the cylinder back chamber respectively: the cylinder of the long table slide should be carried out under the stop force of 0.50MPa and 4.MPa respectively. 5.4.2.5 Inspection of the smooth movement of the live seat rod
When the piston rod is not under load, the pressure oil is passed into the forward chamber of the adjustment, so that the plunger rod moves at the minimum feed speed specified by the component. At this time, the movement of the live seat rod should be smooth. Use a dial indicator to touch the appropriate part of the plunger to check the movement of the live seat rod. The needle should rotate smoothly, and the movement should not exceed 0.01mm
5.5 Assembly
5.5.) The contact between the soft layer and the matching guide rail should be even. Inspection and repair shall be carried out according to the requirements of F76 on the 1st day, and the connection index shall not be less than the provisions of Table 3
Slide table precision velvet series
Pressure level class pressure slide table
High precision level liquid slide table
Full length!
1Only when the length of the contact reaches the specified requirements in the commercial degree can it be used as the calculated value of the length. The inspection index of the two matching guide surfaces is the same as that of the polyester layer guide. The guide system that is newly matched with the polyester layer guide is moved to the matching guide machine. The area of ​​the matching guide defect should be larger than the number of the curved polyester tool. Width
In addition to the color coating method, it is also inspected with a 0.4mm room ruler: the depth of the ruler between the sliding space at the end of the guide rail, the bar, and the pressure plate shall not exceed 20m.
JB/T9885-[999
5.5.2 The connection screws of the pressure-sensitive joints screwed into the body are allowed to use sealing acid as a sealing measure: 6 Idle operation test
6.1 The hydraulic system matched with the slide must comply with the provisions of JB/T10051. 1 The slide is placed on the test bench for an idle operation test of not less than 2 hours. At this time, the specified working cycle must be achieved, the action must be flexible and reliable, and the various actions must be accurate and smooth, without any apparent impact rate. 3 The maximum stroke length of the slide, the rapid advance speed, the rapid retract speed and the working feed speed range shall all comply with the provisions of the slide design. Within the working advance and retraction speed range, the slide should move smoothly without creeping. Load test
7.1 Carry out a load test with the specified maximum feed force to check the stability of the selection force. As shown in Figure 1, use a load cylinder and a dynamometer to measure at the height of the working surface at the center line F of the front end of the slide drum (B is the width of the slide saddle): Pressure slide table
Dynamometer
Fish Grain phase
7.2 Adjust the feed speed of the slide to the feed speed under small working force, and check its feed speed change under measured feed force and no-load. The change rate [see formula (1) 1 shall not exceed ±15%. 30 consecutive measurements are made in 10 cycles. At this time, the feed should be smooth and the movement of the saddle should be checked on the front surface of the slide with a percentage. The needle should move as much as possible and the jump should not exceed 0.01mm8-5n-5x100%
Where: --feed speed change rate;
S-average feed speed when no load is applied, mm/min; S-limit feed speed under specified load, mm/mn. Other instruments with measurement results not lower than that of the dial gauge can be used for measurement. 7.3 When the filter pressure system pressure is 7.00MPa [4.00MPa for long surface slides) and a certain feed speed, the acid stops on the dead stop iron for 5m, and no hydraulic pipe joints, various instantaneous joints, oil seals are allowed to leak oil, and there is no pressure drop in the filter pressure system.
8 Accuracy inspection
The accuracy of the roller slide should be inspected and purchased according to JB/T9889, and the inspection results should be recorded in the production certificate.
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