Patent ID: 9694463
Date: 2017-07-04
CPC Classifications: B24B

Claim:
1. An apparatus for grinding a compression line spring, comprising: a lower chain conveyor including a pair of first chain units provided facing each other at positions spaced apart from each other, each of the first chain units comprising a plurality of first V-shaped blocks for supporting compression line springs; an upper chain conveyor including a pair of second chain units provided facing each other at positions spaced apart from each other, each of the second chain units comprising a plurality of second V-shaped blocks for compressing downward upper portions of compression line springs seated on the first V-shaped blocks and thus supporting the compression line springs; a plurality of grinding units for grinding seat surfaces formed on opposite ends of the compression line springs that are moved by the lower chain conveyor and the upper chain conveyor; a plurality of compression blocks provided in the upper chain conveyor and pressing a chain downward so that the second V-shaped blocks are brought into close contact with the compression line springs; and a plurality of springs installed in the upper chain conveyor and elastically supporting the compression blocks.