Turntable bearing machining technique

Abstract

The invention discloses a turntable bearing machining technique. The turntable bearing machining technique includes the following processes: 1) checking a forge piece blank; 2) performing lathe work machining; 3) performing heat treatment, 3.1) performing quenching on a surface of a ball track: performing medium-frequency quenching on the surface of the ball track, wherein the hardness is not less than 55 HRC, the depth of a hardened layer is not less than 4 mm, and the width of a soft zone is less than 50 mm; 3.2) performing tempering after heating: performing medium-frequency quenching on an inner ring and an outer ring of a bearing at the temperature of 200 DEG C for 48 hours, and then performing discharge to ensure the situation that internal stress vanishes; 4) performing rolling and milling machining, 4.1) performing hobbing on a turntable bearing with inner and outer teeth before abrasive machining, wherein the accuracy class should reach over 8 class; 5) performing hole drilling; 6) performing abrasive machining, 6.1) performing coarse grinding, wherein a medium-corundum resin wheel with the soft-three-granularity of 36 is adopted to perform grinding, the linear velocity is controlled to be 1500 revolutions / minute to prevent the ball track form burn, and the maximum grinding depth is not greater than 1 mm; and 6.2) performing accurate grinding, wherein a resin wheel with the granularity of 46 or 60 is adopted to perform grinding, and the grinding amount is less than that of coarse grinding machining.

Description

technical field [0001] The invention relates to a processing technology of a slewing bearing. Background technique [0002] The existing slewing bearing processing technology still has certain experience and technicality in the adjustment of process steps and equipment parameters. For new operators, a lot of practice is needed to master the operation skills and produce better quality products. good product. Contents of the invention [0003] In order to achieve the purpose of the present invention, the present invention provides a slewing bearing processing technology that is convenient, quick and easy to operate. [0004] In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions: [0005] A processing technology for a slewing bearing, comprising the following steps: [0006] 1) Inspection of forging blanks [0007] Before processing, first understand the material of the blank and the state after ...

AI Technical Summary

Problems solved by technology

[0002] The existing slewing bearing processing technology still has certain experience and technicality in the adjustment of process steps and equipment parameters. For new operators, a lot of practice is needed to master the operation skills and produce better quality products. good product