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我厂铣削喷咀上的平台,采用如图所示多工件夹具,可同时定位、夹紧多个工件,使用方便、结构紧凑。由于喷嘴上的定位基准面很小,又要在圆柱面上铣出平台,因此采用了弹性夹具体8来实现多个工件的定位与夹紧。弹性夹具体8做成薄壁、用45钢或40铬制造,热处理硬度为HRC45～50。使用时,依次将工件装入央具定位孔中,使端面靠在弹性夹具体8上,然后,拧紧球面螺母9,即可通过球面螺栓5、锥形垫圈6、压板7使弹性夹具体8的弹性部分向中间夹紧。
I plant milling nozzle on the platform, as shown in the multi-workpiece fixture, can simultaneously locate and clamp multiple workpieces, easy to use, compact structure. Due to the small positioning datum on the nozzle and the milling of the platform on the cylindrical surface, the elastic clamping body 8 is adopted to realize the positioning and clamping of a plurality of workpieces. Elastic clamp body 8 made of thin-walled, made of 45 steel or 40 chromium, heat treatment hardness HRC45 ~ 50. When in use, the work piece is loaded into the positioning hole of the central tool in turn so that the end face abuts on the elastic clamp body 8; then, the spherical nut 9 is tightened so that the elastic clamp body 8 can be moved by the spherical bolt 5, the tapered washer 6 and the pressure plate 7 The elastic part is clamped to the center.