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在工件装夹中,经常采用螺旋夹紧机构。在夹紧凹形工件时,如用常见螺旋机构夹紧点在工件底部,则必须拧动螺钉至底部;取出工件则必须将螺钉退拧至凹形工件的外轮廓位置。随着凹槽深度的增加,由于拧动圈数的增加,必将增加操作工人的劳动强度和降低效率。图1所示的快装螺旋夹紧机构,可以克服普通螺旋夹紧机构的缺点。使用时,先将压紧螺钉1旋进快装螺纹衬套2至预定位置,然后把压紧螺钉1和快装螺纹衬
In the workpiece clamping, often using spiral clamping mechanism. When gripping a concave workpiece, if the common screw mechanism is used to clamp the point at the bottom of the workpiece, the screw must be tightened to the bottom. To remove the workpiece, the screw must be unscrewed to the outer contour of the concave workpiece. With the increase of the depth of the groove, due to the increase of the number of twist turns, it is bound to increase the labor intensity and reduce the efficiency of the worker. The quick-loading screw clamping mechanism shown in FIG. 1 can overcome the disadvantages of the conventional screw clamping mechanism. In use, first screwing the compression screw 1 into the quick-loading threaded bushing 2 to a predetermined position, and then pressing the compression screw 1 and the quick-loading thread liner