Calibration free fast positioning fixture

The present invention relates to the field of fast positioning Free correcting jig. It comprises a wheel, the shaft, the rotating disk locking, positioning and orientation block and the pressure plate, fixedly mounted on the rear wheel lathe rotation mechanism, the front wheel shaft is mounted in the center of the shaft structure is divided into three segments, near the wheel a cylindrical rotary shaft is large, a small cylinder remote from the shaft, the intermediate shaft is in a cylindrical, threaded, cylindrical locking shaft rotation circled large upper threaded shaft position over a large cylinder, positioning and orientation includes a rear block before the block and a centrally located centering blocks, the center block positioned outside of the rotating disk mounted on the locking sleeve on the large cylinder shaft, the lower positioning block mounted on the front end of the cylindrical spindle shaft, the shaft has a threaded small cylinder, pressure plate mounted on top. The advantages of simple design, easy to use and fast, able to accurately contained in the pump housing for positioning, alignment, clamping, safe and reliable processing, production and processing efficiency is greatly accelerated, and greatly enhance the processing rate of qualified products, saving time and effort.