化油器下体的上平面需要在铣床上加工,以前加工这一平面时,一直是用螺母压板来夹紧工件,装拆工件相当费事,改用气动顶紧压板后,生产效率提高了三倍,并且大大减轻劳动强度。气动夹具构造如附图,夹紧工件对,压缩空气由活塞的上方进入气缸,活塞受气压作用推动中心轴向下移动,从而使压板压紧工件。工件加工好以后,搬动气阀,使压缩空气由活塞下方 Carburetor upper body on the plane need to be processed in the milling machine, before the processing of this plane, the nut has been used to clamp the workpiece plate, assembly and disassembly of the workpiece is quite troublesome, switch to pneumatic top pressing plate, the production efficiency tripled , And greatly reduce labor intensity. Pneumatic fixture structure shown in Figure, clamping workpiece pairs, compressed air from the top of the piston into the cylinder, the piston is driven by air pressure to move the central axis down, so that the platen pressed the workpiece. After the workpiece is machined, move the air valve so that the compressed air is below the piston