JB/T 2858.3-1999 Thread grinding machine accuracy inspection

JB/T 2858.3-1999 This standard is a revision of ZB J56 002-87 "Thread Grinding Machine Precision". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard is part of the JB/T 2858 "Thread Grinding Machine" series of standards, which includes the following four parts: JB/T 2858.1-1999 Thread Grinding Machine Parameters JB/T 2858.2-1999 Thread Grinding Machine Series JB/T 2858.3-1999 Thread Grinding Machine Precision Inspection JB/T 2858.4-1999 Thread Grinding Machine Technical Conditions This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of thread grinders. This standard is applicable to thread grinders, universal thread grinders and screw grinders with a maximum workpiece diameter of 50 to 500 mm and a maximum workpiece length of 500 to 5000 mm and a movable table. This standard was first issued in July 1980 and revised for the first time in July 1987. JB/T 2858.3-1999 Thread Grinding Machine Accuracy Test JB/T2858.3-1999 Standard Download Decompression Password: www.bzxz.net