Disc shear gap measuring device

Abstract

The invention discloses a gap measuring device for a circle shear. The gap measuring device for the circle shear comprises a shell, a rack, a gap measuring ejector pin, a first fan gear, a pointer shaft meshed with the first fan gear, a pointer fixed to the pointer shaft, a second fan gear meshed with the pointer shaft and an elastic piece. The rack drives the first fan gear to rotate when sliding relative to the shell, the first fan gear drives the pointer shaft to rotate so as to drive the pointer to rotate, and therefore the size of a gap is displayed. The second fan gear is driven by the elastic piece to sequentially drive the pointer shaft, the first fan gear, the rack and the gap measuring ejector pin, and then the gap measuring ejector pin is made to tightly eject a cutter shaft sleeve of the circle shear. According to the gap measuring device for the circle shear, due to the fact that the gap measuring ejector pin directly abuts against the cutter shaft sleeve of the circle shear in a connected mode, the displacement of the cutter shaft sleeve is directly measured, an error caused by a gap adjustment transmission device is avoided, the measurement precision of a shear edge gap value is improved, and abnormal shearing conditions are avoided.

Description

technical field [0001] The invention relates to the technical field of edge trimming equipment for metallurgical production, in particular to a disc shear clearance measuring device. Background technique [0002] Disc trimming shears are widely used in the production of metal sheets and strips. Its function is to cut the edge defects of the products to improve the width accuracy and quality of the finished products. In order to reduce the burrs on the sheared section and improve the quality of the strip section, people usually use appropriate horizontal and vertical clearances to produce strips of different thicknesses and materials. [0003] At present, most of the disc shears are equipped with horizontal gap adjustment devices and vertical gap adjustment devices, and some disc shear gap adjustment devices are also equipped with locking devices. Usually, the gap adjustment device is driven by a motor, and the motor is equipped with an encoder to count the angle rotated by ...

AI Technical Summary

Problems solved by technology

However, this method has the following two defects: one is that there is a reasonable gap in the transmission gear of the blade clearance adjustment device, which produces a return difference when the motor is forward and reverse, which cannot be eliminated mechanically; the other is that data is easily lost after maintenance and blade replacement , time-consuming calibration

[0004] In addition, in actual production, the gap value calculated by this method is quite different from the actual gap value, resulting in abnormal shearing, and the production line needs to be shut down frequently for manual calibration, which takes time and effort and affects production efficiency

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