JB/T 8649.1-1997 JB/T 8649.1-1997 CNC printed circuit board drilling machine accuracy inspection JB/T8649.1-1997 Standard download decompression password: www.bzxz.net

JB/T8649.1-1997
This standard is formulated to meet the urgent needs of integrated circuit production in the electronics industry. This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of Shenyang Boring and Drilling Machine Research Institute. The drafting units of this standard are Nanjing University of Aeronautics and Astronautics Electromechanical Equipment Factory, Chongqing University Electromechanical Equipment Factory, Hangzhou Xichao Bench Drilling Factory, and Fuzhou Bench Drilling Factory.
１ Fanpu
Mechanical Industry Standards of the People's Republic of ChinawwW.bzxz.Net
CNC Printed Circuit Board Drilling Machine
Precision Inspection
JB/T8649.1-1997
This standard specifies the requirements and inspection methods for geometric accuracy inspection and working accuracy inspection of CNC printed circuit board drilling machines. This standard applies to CNC printed circuit board drilling machines. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were all valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards. 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 JB3051-82 Nomenclature of coordinates and movement directions of digital control machine tools 3 General requirements
3.1 The order of precision inspection items listed in this standard does not represent the actual inspection order. For the convenience of assembly and disassembly of inspection tools and inspection, inspections can be carried out in any order.
3.2 When using this standard, it must be carried out in accordance with the relevant provisions of JB2670. Especially the installation before the child is illuminated, the temperature rise of the spindle and other moving parts during idling, the inspection method and the accuracy of the inspection tool. 3.3 Refer to 3.1 in JB2670-82 to adjust the installation level of the machine tool, place a level ruler on the workbench, and place a spirit level on it. The readings of the spirit level in the X and Y directions shall not exceed 0.1/1000. 3.4 When the actual 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 2.3.1.1 in JB2670-82. When the conversion result is less than 0.005mm, it shall still be calculated as 0.005mm. 3.5 For machine tools with multiple spindles, items related to the spindle should be inspected on each spindle. 3.6 The coordinates and movement direction of the machine tool shall be in accordance with the provisions of JB3051. 3.7 Inspection items may be increased or decreased based on the agreement between the user and the manufacturer. Approved by the Ministry of Machinery Industry of the People's Republic of China on August 18, 1997472
Implementation on January 1, 1998
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