Solar Camping Lighting System,Outdoor Solar Energy Lamp,Solar Energy Lighting Guangdong Dp Co., Ltd. , https://www.lightdp.com The lower bracket connecting fork produced by our factory is shown in Figure 1. It needs to process the inner open gear and the two outer parts. The previous processing is carried out by two sets of clamps in two steps, which is not only inefficient, but also because the blank surface is used twice. Positioning processing, easy to produce internal and external sides are not parallel, high scrap rate. To this end, a positioning pad for use on a vise is designed, as shown in Figure 2. The groove on the backing plate 3 is secured with the vise guide 1