Shearing jig

Abstract

The invention discloses a shearing jig which comprises a bottom plate, a holder, a first supporting plate arranged above the bottom plate, a first long-range cylinder arranged on the first supporting plate, a cutter, a first pneumatic or hydraulic device, a first switching device and a first interlocking device, wherein the first long-range cylinder comprises a piston, and an upper cavity and a lower cavity which are positioned in two sides of the piston, and a piston rod fixed on the piston; the cutter is arranged on the piston rod of the first long-range cylinder; the first switching device comprises a valve opening A1 connected with the lower cavity of the first long-range cylinder, a valve opening B1, and a valve opening P1 connected with the first pneumatic or hydraulic device; the first interlocking device comprises a valve opening A2 communicated with the outside, a valve opening B2 communicated with the upper cavity of the first long-range cylinder, and a valve opening P2 connected with the valve opening A1 of the first switching device. Compared with a traditional manual shearing mode, the shearing jig provided by the invention has the advantages of simple operation, high efficiency and high safety coefficient and is simple and low in cost compared with a conventional shearing machine mechanism.

Description

Technical field [0001] The invention relates to the field of mechanical jigs, in particular to a shearing jig. Background technique [0002] In recent years, with the rapid development of multimedia technology, there has been an increasing demand for optical components in electronic devices such as digital cameras, camcorders, and mobile phones with camera functions. Optical components are usually manufactured by injection molding to improve production efficiency, yield and reduce costs. Robert D. TeKolste and others in the 1995 SPIE system, precision plastic optical components design, manufacturing and application conference (Design, Fabrication, and Applications of Precision Plastic Optics Proceedings) published in the paper "Injection Molding of Binary Optical Elements" An injection molding technology for optical components. [0003] After the optical element is injection molded, it needs to be cut to remove the runner material head to obtain the required optical element. The...

AI Technical Summary

Problems solved by technology

Because of the cumbersome operation, low efficiency and small safety factor of the traditional manual cutting method, a shearing machine is usually used to cut the gate position where the runner tip and the peripheral part of the optical element intersect

However, the shearing machine in the prior art has a high cost due to its complex structure, and at the same time, it is difficult to maintain when a fault occurs

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