JB/T 8485.2-1998 This standard is formulated based on JB/T 3732-94 "Gear Shaving Machine Accuracy" and adds requirements for the CNC part. This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of CNC gear shaving machines. This standard is applicable to CNC gear shaving machines with a maximum workpiece diameter of 125~500mm. JB/T 8485.2-1998 CNC gear shaving machine accuracy inspection JB/T8485.2-1998 standard download decompression password: www.bzxz.net

JB/T8485.2-1998
Precision" and added requirements for the CNC part. This standard is based on JB/T3732--94 "Gear Shaving Machine This standard is proposed by the National Technical Committee for Metal Cutting Machine Tool Standardization. This standard is under the jurisdiction of Chongqing Cylindrical Gear Machine Tool Research Institute. Drafting units of this standard: Nanjing Second Machine Tool Factory, Chongqing Machine Tool Factory. The main drafters of this standard: Zou Min, Cao Xiuying, Yu Hongli, Xu Changchun, Wu Xiaohua, Wang Jinsheng. 765
1 Scope
Machinery Industry Standards of the People's Republic of China
Precision Inspection of CNC Gear Shaving Machines
This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of CNC gear shaving machines. This standard is applicable to CNC gear shaving machines with a maximum workpiece diameter of 125 to 500 mm. 2 Referenced standards
JB/T 8485. 2---1998
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 will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB10095-88 Involute cylindrical gear accuracy GB10931-89 Method for evaluating the position accuracy of digital control machine tools JB2670-82 General rules for precision inspection of metal cutting machine tools 3 General requirements
3.1 Adjust the installation level in accordance with 3.1 of JB2670--82. For machine tools with longitudinal movement of workpieces, place the worktable in the middle of the stroke, place a special bridge plate in the center of the worktable, and place a level on the bridge plate; for machine tools with longitudinal movement of tools, place a special bridge plate in the center of the bed table, and place a level on the bridge plate. The readings of the level in the longitudinal and transverse directions shall not exceed 0.04/1000. 3.2 During the inspection, the actual inspection order can generally be arranged according to the requirements of the installation and disassembly inspection tools, inspection convenience, and thermal inspection items. 3.3 During the working accuracy inspection, the inspection of the test piece should be carried out after fine shaving. 3.4 When the measured length is different from the length specified in the standard, the tolerance should be converted according to the length that can be measured according to the provisions of 2.3.1.1 in JB2670--82. When the conversion result is less than 0.001mm, it is still calculated as 0.001mm. Approved by the State Bureau of Machinery Industry on July 17, 1998 766
Implemented on December 1, 1998
JB/T 8485.2—1998
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