JB/T 3290.2-1999 This standard is a revision of JB 3290.2-83 "Vertical Single-axis Mortise and Tenon Machine Accuracy". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of vertical single-axis mortise and tenon machines. This standard is applicable to vertical single-axis mortise and tenon machines. This standard was first issued on June 20, 1983. JB/T 3290.2-1999 Vertical Single-axis Mortise and Tenon Machine Accuracy JB/T3290.2-1999 Standard download decompression password: www.bzxz.net

ICS79.120.10
Machinery Industry Standard of the People's Republic of China
JB/T3290.2-1999
Vertical Single-Axis Slotting Machine Accuracy
Published on 1999-05-14
National Bureau of Machinery Industry
Implemented on 2000-01-01
JB/T3290.2—1999
This standard is a revision of JB3290.283 "Vertical Single-Axis Slotting Machine Accuracy". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged.
This standard replaces JB3290.2—83 from the date of implementation. This standard was proposed by the National Technical Committee for Standardization of Unprocessed Machine Tools and Cutting Tools. This standard is under the jurisdiction of Fuzhou Woodworking Machine Tool Research Institute. The responsible drafting unit of this standard: Shanghai Woodworking Machinery Factory. The main drafters of this standard are Lin Chongguang, Han Wenyuan and Zheng Zongjian. This standard was first issued in June 1983.
Mechanical Industry Standard of the People's Republic of China
Vertical Single-Axis Slotting Machine Accuracy
This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of vertical single-axis slotting machines. This standard applies to vertical single-axis slotting machines.
Cited Standards
JB/T3290.2—1999
Replaces JB3290.2—83
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T8170—1987
JB/T4171—1999
3 General requirements
Rules for rounding off values
General rules for precision inspection of woodworking machine tools
3.1 When using this standard, refer to JB/T4171. 3.2 Before inspecting the machine tool, refer to 3.1 of JB/T4171-1999 to adjust the installation level of the machine tool. Move the workbench to the middle position and place a level gauge in the middle of the workbench. The vertical and horizontal readings shall not exceed 0.10/1000. 3.3 The order of precision inspection items listed in this standard does not represent the actual inspection order. In order to facilitate the installation and disassembly of inspection tools and inspection, inspections can be carried out in any order.
3.4 ​​When the measured length is different from the length specified in this standard, the tolerance shall be converted according to the measurable length in accordance with the provisions of 2.2.1.1 of JB/T4171-1999, and the minimum conversion value shall be 0.01mm. The rounding of the numbers in the conversion shall comply with the provisions of GB/T8170. 4 Geometric accuracy inspection
Geometric accuracy inspection is shown in Table 1.
B Length of support plate
National Machinery Industry Bureau approved the inspection items on May 14, 1999
Straightness of support plate
Table 1 (continued)
B≤630
Inspection method reference
Related provisions of JB/T4171-1999
4.2.1.2.2.2
2000-01-01 implementation|| tt||JB/T3290.2—1999
Inspection items
Parallelism of the longitudinal movement of the worktable to the support plate
Verticality of the transverse movement of the worktable to the support plate
Parallelism of the upward and downward movement of the spindle to the support plate
Verticality of the upward and downward movement of the spindle to the worktable (longitudinal)
Radial runout of the spindle centering taper
0.10 over 200 measuring length
0.07 over 100 measuring length
0.10 over 100 measuring length
0.10 over 100 measuring length
Indicator
Indicator
Indicator
Indicator
Contour block
Indicator
Inspection method refers to the relevant provisions of
JB/T4171-1999
4.4.22.2.1
The workbench is located in the middle of the horizontal
travel
The indicator probe is located in the middle of the support plate
47.2.22.2.1|| tt||The workbench is located in the middle of the longitudinal
stroke
The angle ruler is in the middle of the support
44.2.22.2.1
Move the upper and lower spindles as specified in the diagram
4.7.22.2.1
The workbench is located in the middle of the longitudinal
stroke
The workbench is not a frame
structure , do not use a ruler or equal height block. A—Workbench length B—Workbench width G—Measurement height JB/T3290.2—1999 Table 1 (end) Inspection items Flatness of workbench surface a. Longitudinal straightness b. Horizontal straightness c. Diagonal direction
Straightness
Verticality of the back plate to the workbench
Axis of spindle rotation
Radial diameter of the taper hole of the chisel seat
Circular run-out
A≤630
B≤200
Q07/100
Indicator
Inspection method refers to
Related provisions of JB/T4171—1999
|t t||The workbench is a frame
structure, so this item is not tested
4.7.12.2.2
The workbench is a frame
structure, so this item is not tested
The indicator is fixed on the
spindle
Measure points a and b, and
half of the maximum difference measured is the error value
5 Working accuracy inspection
See Table 2 for working accuracy inspection.
JB/T3290.2—1999
Cutting conditions
a. The specimen is a hard miscellaneous wood with a moisture content not exceeding 15%.
b. The plane
of the specimen is 0.10 over a length of 650, and the verticality between two adjacent
surfaces
c. The width of the sample groove
is 12, and the size of the specimen
is: 50×50×
The width of the sample groove is 1 6.
Test piece size:
70X60×650
Test items
Parallelism of the center line of the sample slot hole to the reference
A surface
Perpendicularity of the center line of the sample slot hole to the referencewww.bzxz.net
B surface
Degree (longitudinal)
020
020
020
Indicator
Test stick
Test stick
Test method refers to the relevant provisions of
JB/T4171—1999
||Put the test stick through
the sample slot hole, put the angle ruler against
the test stick, and use the plug
rule to measure the maximum gap
Mechanical industry standard
Vertical single-axis slot machine accuracy
JB/T3290.2—1999
Mechanical Industry Ministry of Machinery Published and distributed by the Institute of Standardization Printed by the Institute of Standardization of the Ministry of Machinery Industry (No. 2, Shouti South Road, Beijing: Postal Code 100044)*
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