This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of heavy-duty deep hole boring and drilling machines. This standard is applicable to heavy-duty deep hole boring and drilling machines of general use with a maximum boring hole diameter greater than 250~1000 mm, a maximum boring hole depth of 3000~20000 mm, and fixed and movable workpiece spindle boxes. JB/T 8332.1-1996 Heavy-duty deep hole boring and drilling machine accuracy JB/T8332.1-1996 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/1 8332. 196
Heavy-duty deep hole drilling and boring machines
Issued on April 11, 1996
Ministry of Machinery Industry of the People's Republic of ChinawwW.bzxz.Net
Implemented on October 1, 1996
Mechanical Industry Standard of the People's Republic of China
Precision of heavy-duty deep hole drilling and boring machines
1 Subject content and scope of application
This standard specifies the requirements and inspection methods for the geometric accuracy of heavy-duty deep hole drilling machines, Jn/T 8332.1-96
This standard is applicable to heavy-duty exploration drilling machines with large bores greater than 250~1000mm, large depths of 3000~20000mm, and spindle boxes of fixed and movable types for general purposes. Reference standards
113% Shape and position tolerance terms and definitions B2330 Determination of mesh error Two-point and three-point method JB2570 General rules for inspection of cutting machine tools 3 General requirements
3.1 According to 3.1 of J32670, adjust the machine tool installation water level, and place it horizontally at the two ends of the bed. The number between the number and the number of the level meter should not be less than 0.5/1000.
3.2 Pre-inspection is only carried out during the matching process, and the load test is carried out again. 3.3 The order of precision inspection items listed in this standard does not represent the actual inspection order. During inspection, the inspection tools can generally be disassembled according to the table for convenience. The actual inspection order must be arranged according to the purpose of inspection. 3.4 During process precision inspection, the test piece should be inspected after removal. 3.5 When the actual measured length is different from the length specified in this standard, the tolerance should be based on the provisions of Article 2.3.1.1 of JB2670. When the calculated result is less than 0.CC5mm, C.005m is still obtained. 3. The direction parallel to the guide rail of the bed is the missing direction, and the direction parallel to the center of the weaving direction is the horizontal direction: Approved by the Ministry of Machinery Industry in 1996-0411
Implementation on 1996-10-01
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