This standard specifies the requirements for the manufacturing and acceptance of bevel gear rolling inspection machines. This standard applies to ordinary precision bevel gear rolling inspection machines with a maximum workpiece diameter of 125~1600mm. JB/T 4284-1996 Technical conditions for bevel gear rolling inspection machine JB/T4284-1996 Standard download and decompression password: www.bzxz.net

J56 | | tt | | JB | |tt||Ministry of Machinery Industry of the People's Republic of ChinabZxz.net
Technical Conditions
Implemented on 1997-01-01
Released
Machinery Industry Standards of the People's Republic of China
Technical conditions
Bevel gear rolling inspection machine
1 Subject content and scope of application
This standard specifies the requirements for the manufacturing and acceptance of bevel gear rolling inspection machines. This standard applies to Boton precision-grade bevel gear rolling inspection machines with a maximum workpiece diameter of 125 to 1600 mm. 2 Reference standards
GB/T5226.1
GB9061
JB4139
JB4243
ZBJ50003
ZB J50004
ZBnJ50 008.1
ZBn J50 008.3
ZBJ50016
General requirements
3
Industrial machinery and electrical equipment Part 1: General technical conditions Metal cutting machine tools General technical conditions| |tt||Technical Conditions for Safety Protection of Metal Cutting Machine Tools and Machine Tool Parts Bevel Gear Rolling Inspection Machine Accuracy
Determination of Cleanliness of Metal Cutting Machine Tools
Kumquat Cutting Machine Tools
Noise Sound Pressure Level Determination of
General technical conditions for machined parts
Metal cutting machine tools
Metal cutting machine tools
General technical conditions for assembly
General technical conditions for assembly||tt| | General technical conditions for hydraulic systems | | tt | | JB/T428496 | When accepting machine tools according to this standard, the remaining acceptance items in the above standards that are not specified by this standard must be inspected at the same time. 4 Accessories and Tools
4.1
The accessories and tools listed in Table 1 should be supplied with the machine. Table 1
Name
Anchor screws
Machine mattress iron
Weighing
Machine tool contour gauge
Special spanner||tt ||Workpiece Tire Rod
Workpiece Faceplate"
Used
Use
Used for installing machine tools
Used for adjusting machine tools
Used for installing workpieces
Note: 1) The workpiece faceplate is only suitable for machine tools with a maximum workpiece diameter greater than 800mm. 4.2 Special accessories can be supplied according to agreement
Approved by the Ministry of Machinery Industry on 1996-11-07

All required
Full set
1 piece
1 set
2 pieces
1 set
1997-01- 01Implementation
5 Safety and health
JB/T428496
5.1 The height of the operating handle from the ground is assessed according to the regulations in JB4139, except for the vertical movement of the box on the column and The handwheel (handle) that rotates the rotary plate shall be assessed according to the height requirements of the operating handle "only used during adjustment". The installation height of the reading mechanism of the measuring device is subject to the requirements for reading mechanisms that are not frequently used in JB4139
5.3 The guide rail pairs between the moving parts of the machine tool should be equipped with protective devices at locations that are easily worn by dust. . 5.4 For machine tools with positioning devices for the driving axis and the driven axis, the positioning devices should be interlocked. If there is no interlocking device, an instruction sign should be fixed near the control mechanism and explained in the machine tool instruction manual. 5.5. ZBJ50004 stipulates that the machine tool noise should be tested under the conditions of dry operation of the whole machine at all levels of speed, and the sound pressure level of the whole machine shall not exceed 83dB(A)
5.6 Operation of handwheels and handles of this series of machine tools. Force, except that the control force of the handwheel (handle) used to move the box on the skateboard (except the handwheel with a motorized mechanism) is assessed according to the requirements of the "frequently used" handwheel (handle), the rest are all based on the " Requirements assessment for handwheels (handles) that are not frequently used.
5.7 When accepting machine tools according to this standard, the remaining acceptance items in JB4139 that are not specified in this standard must be inspected at the same time, as well as the acceptance items specified in standards such as GB/T5226.1 and ZBJ50016. 6 Processing and assembly quality
6.1 The machine bed, column, sliding plate, rotary plate, driving box and driven box are important castings and must be aged after rough machining. 6.2 For main parts that are prone to wear, such as the main shaft of the driving box and the main shaft of the driven box, resistance measures must be taken that are commensurate with their service life. 6.3 The guide rail pairs between the machine tool bed, column, slide plate, rotary plate, driving box and driven box are important guide rail pairs, and wear-resistant measures should be taken.
6.4 The joint surfaces between separately installed machine tool beds shall be assessed according to the requirements of "particularly important fixed joint surfaces\". 6.5 The guide rail pairs of each moving part of the machine tool shall be assessed according to the requirements of "displacement guide rails". 6.6 The amount of reverse free travel of handwheels and handles with scale devices should not exceed 1/101. 6.7 The correctness of the installation of scale verniers on each moving part of the machine tool. The tolerance is the minimum scale value on the vernier. 6.8 Technical ZBJ50003 To check the cleanliness of the machine tool, visual inspection and hand inspection are generally used. If necessary, the weight method is used. Impurities and dirt in the driving box and driven box should not exceed the requirements in Table 2. Table 2
Component Name|| tt||Active box
Slave box
320
7000
8000
>320~500
9000||tt| |11500
The impurities and dirt in the oil tank should not exceed 150mg/L. 7 Machine tool dry running test
Maximum workpiece diameter
mm
>500 ~800
12000
16000
>800~1250
14000
18000
mg
>1250~1600
17000
22000
7.1 The spindle of the machine tool active box runs sequentially at low speed, and the high-speed running time shall not be less than 1 hour, so that the spindle bearing reaches a stable temperature, and the temperature and temperature of the spindle bearing are measured. Temperature rise, its value should not exceed the provisions of GB9061. 7.2 The main shaft of the machine tool driving box runs sequentially in both forward and reverse directions starting from the lowest speed. Each slow operation time shall not be less than 2 minutes, and the high-speed operation time shall not be less than 1 hour. The operation process 2
JB/T4284-96
7.3 The transmission ratio of the bevel gear pair for the dry running test of the machine tool is i=1:3, and the diameter of the driven bevel gear is Not less than 0.6 times the maximum workpiece diameter.
7.4 The idle running power of the main transmission system of the machine tool should not exceed the design requirements (spot check). 7.5 The whole machine should be tested continuously when the spindle box spindle is running at medium speed. The trouble-free operation time shall be no less than 4 hours. 8 Machine Tool Load Test
8.1 This series of machine tools uses the method of adding braking torque to conduct load tests according to the following conditions. The driving bevel gear drives the driven bevel gear at high speed and the driven bevel gear is driven at high speed. Braking force is applied to the shaft and the brake is applied every 2 minutes. The braking time is 1 minute. The number of forward and reverse rotations should not be less than 5 times. The braking torque should be specified by the design. During the test, all mechanisms should work normally. 8.2 The parameters of the bevel gear pair used in the test are the same as those of the dimensional gear pair used in the dry running test. 9 Machine tool accuracy inspection
The machine tool accuracy is inspected according to the provisions of JB4243. Additional notes:
The Metal Cutting Machine Tool Standardization Technical Committee proposed that this standard is under the jurisdiction of Tianjin Gear Machine Tool Research Institute. This standard is drafted by Tianjin Gear Machine Tool Research Institute, 3
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