JB/T 2937.1-1999 Jig boring machine parameters

JB/T 2937-1999 This standard is a revision of JB 2253-85 "Parameters of Jig Boring Machines". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard is part of the "Jig Boring Machine" series of standards, which includes the following three parts: JB/T 2937.1-1999 Parameters of Jig Boring Machines; JB/T 2254-1985 Accuracy of Jig Boring Machines; JB/T 2937-1993 Technical Conditions of Jig Boring Machines. The standards supporting this series of standards are: JB/T 2255.1-1999 Coordinate boring machine rotary table accuracy inspection JB/T 2255.2-1999 Technical conditions for coordinate boring machine rotary table JB/T 3753-1999 Coordinate boring machine 3:20 taper hole spindle end dimensions This standard specifies the parameters of coordinate boring machines. This standard is applicable to newly designed single-column coordinate boring machines with a worktable width of 200~630mm and double-column coordinate boring machines with a worktable width of 450~2000mm. This standard was first issued in July 1977 and revised for the first time in August 1985. JB/T 2937.1-1999 Coordinate boring machine parameters JB/T2937.1-1999 Standard download decompression password: www.bzxz.net