摘要
传统虎钳使用的是硬性燕尾槽滑轨,其利用丝杠和丝杠螺母来传递夹紧力,存在配合间隙高、运动阻力大、工件夹紧力不统一等问题,为了解决这些问题,设计了一种联动凸轮双向快速装夹装置。该装置使用了凸轮与连杆组合联动,实现了对两个凸轮推杆的同时控制,可快速进行工件的快速装夹和定位;通过研究改变凸轮摇臂与连杆铰接的位置,实现了同时同方向控制和同时相对方向控制,即只通过控制液压缸单方向制动就能对凸轮进行相对方向的运动控制。研究结果表明:该装置应用于诸如加工中心等数控机床上,只要定位一次,便可使用同样XY坐标系补偿值,加工不同棒料工件;相对于传统的虎钳夹紧力较大的特点,该装置具有良好的鲁棒性、导向性和稳固性。
Aiming at solving the problem of rigid dovetail groove slide rail used in traditional vise using the screw and screw nut to transfer clamping force,which includes high clearance,large movement resistance and uneven clamping force of workpiece,a double-directional clamping device of linkage CAM was presented.The simultaneous control of two CAM push rods was realized through the linkage of CAM and connecting rod in this device,which can quickly clamp and locate the workpiece.By changing the hinge position of CAM rocker arm and connecting rod,simultaneous direction control and simultaneous relative direction control were realized.The results show that the device can be positioned once on NC machine tools such as machining center,and the same XY coordinate system can be used to process different bar workpiece.Compared with the traditional vise,the device has good robustness guidance and stability.
作者
周渝明
林光明
ZHOU Yu-ming;LIN Guang-ming(School of Mechanical and Electrical Engineering,Guangdong College of Industry and Commerce,Guangzhou 510510,China;School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China)
出处
《机电工程》
CAS
北大核心
2020年第7期831-835,共5页
Journal of Mechanical & Electrical Engineering
基金
广东省高职教育机械制造类专业教学指导委员会教育教学改革项目(JZ201823)。
关键词
虎钳
自定心
快速装夹
vise
self-centering
quick clamping
