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我厂在加工提升机的双头环钩时,每装夹一次只能车一头螺纹。以后在《机械制造》1986年第7期高效夹具的启发下,我们设计制造了车双头环钩夹具,装夹一次、转位一次可车两头平行螺纹。新夹具保证产品质量,提高效率,其结构(如附图)及使用如下: 结构特点:夹具由固定盘3和转位盘4两大部件组成。按工件的中心距L使转位盘的中心与固定盘中心偏移L/2。为了使定位牢固起见,在固定盘上用定位销6联接,以弹簧5为径向压力,再用六角螺钉8锁紧。使用方法:在普通车床上夹紧固定盘3,按其外径找正,将工件7(链环钩)用压板2压紧在转位盘4上。
I plant processing hoist double-headed hook, each fixture can only be a car thread. After the “mechanical manufacturing” in 1986 seventh issue of efficient fixture under the inspiration, we designed and manufactured a car double-headed ring hook fixture, clamping once, indexing a car two parallel threads. The new fixture to ensure product quality, improve efficiency, its structure (as the photo) and the use of the following: Structural features: Fixture by the fixed plate 3 and the index plate 4 composed of two major components. According to the center distance L of the workpiece, the center of the index disk is offset by L / 2 from the center of the fixed disk. In order to make the positioning firm, the fixing plate is connected with the positioning pin 6, and the radial pressure is applied to the spring 5, and then locked by the hexagonal screw 8. How to use: In the ordinary lathe clamping plate 3, according to its outer diameter to find the correct, the workpiece 7 (chain hook) with pressure plate 2 pressed on the index plate 4.