大客车侧围蒙皮冷张拉设备自锁紧夹具的研究与应用  

Research and Application of Self-locking Fixture for Cold Tensioning Equipment of Bus Side Panel

作　　者：高建路 Gao Jianlu(Liaocheng Zhongtong Bus Company Limited,Shandong Liaocheng 252024)

机构地区：[1]聊城中通轻型客车有限公司技术中心,山东聊城252024

出　　处：《汽车实用技术》2020年第24期160-162,共3页Automobile Applied Technology

摘　　要：大客车侧围蒙皮液压张拉^[1]的设备,其夹具一般为设计为长槽形状,以使液压缸对整个夹具施加压力,造成整个夹具投入成本较高,夹具^[2]自重大,在使用时,需辅助支架吊住整个夹具,液压管路布置较乱,操作者工作环境差,同量由于夹具的夹具力全部来自液压缸,在液压系统不稳定或蒙皮较宽时,其夹紧力不能满足使用需要,很容易发生夹具与蒙皮相对滑动^[3]、松脱的现象,造成夹紧失效,影响蒙皮张拉质量。文章针对这一问题,对张拉设备进行分析与研究,提出一种全机械、自锁紧的夹具结构,很好的解决了上述问题。The clamps of the hydraulic tensioning equipment for the side skin of buses are generally designed in the shape of long grooves,so that the hydraulic cylinder exerts pressure on the whole clamps,resulting in a higher investment cost for the entire clamps,and the clamps are self-weight,when the hydraulic system is unstable or the cover is wide,the clamping force can not meet the need of operation because the clamping force of the fixture is all from the hydraulic cylinder,it is very easy to slip and loosen the clamps and skins,which causes the failure of the clamps and affects the quality of the skin stretching.In this paper,the tensioning equipment is analyzed and studied,and a fully mechanical and self-locking structure of the clamps is proposed,well,that solves all of that.

关 键 词：液压 夹具 压力 液压缸 滑动 松脱 机械 自锁紧 

分 类 号：TG757[金属学及工艺—刀具与模具]