Lock catch bar upsetting die

The invention relates to a lock catch bar upsetting die. The lock catch bar upsetting die comprises an upper die seat, an upper cushion plate connected with the upper die seat, a lower die seat, a lower cushion plate connected with the lower die seat, and a lower die plate, wherein the upper cushion plate is provided with a punch, the lower die plate is provided with two sliding blocks, a lock catch bar to be machined is fixed between the two sliding blocks, the punch is arranged above the lock catch bar to be machined, and the sliding blocks are connected with an air cylinder. Compared with the prior art, bars with the diameter and surface roughness meeting the requirements can be directly used for machining without being turned with a lathe, so that material loss is avoided and the utilization rate of materials is increased. 本发明涉及种锁扣棒镦肩模具，包括上模座、与上模座连接的上垫板、下模座、与下模座连接的下垫板及下模板，所述上垫板上安装有冲头，所述下模板上安装有两个滑块，待加工锁扣棒固定在两个滑块之间，所述冲头设置在待加工锁扣棒的上方，所述滑块连接气缸。与现有技术相比，本发明可以直接使用符合要求的直径以及表面粗糙度的棒材进行加工，不需要额外使用车床进行车制，材料没有耗损且利用率提高。