Special clamp for support leg boring of development machine

Abstract

The invention relates to a special clamp for support leg boring of a development machine. The special clamp comprises a clamp body, a plane bearing clamping device, a slope bearing clamping device, a side positioning device and a tail positioning device. The plane bearing clamping device and the side positioning device are installed on the clamp body, the slope bearing clamping device and the tail positioning device are located at the head and the tail of the clamp body respectively, contact portions between an inclined support plate of the slope bearing clamping device and an inclined lower plane of a to-be-processed workpiece of a support leg of the development machine are provided with four adjustable support points, and the position of each adjustable support point is provided with an adjustable bearing pin. The total number of bearing plates installed on the clamp body is 4, the bearing plates are divided into two groups, and each group of bearing plates are arranged in a shaped like a Chinese character ba. The problems that a positioning standard is difficult to determine in connecting hole boring processing at two ends of the support leg of the development machine and alignment is time-waving in processing are solved. Besides, after a first product is processed, alignment time can be saved in follow-up product processing, and the special clamp is simple in structure, high in positioning precision and convenient to operate.

Description

Technical field: [0001] The invention relates to the field of machining, in particular to a special fixture for boring a support leg of a roadheader. Background technique: [0002] The roadheader is the main equipment for the development of coal mine roadways. It is a comprehensive roadheader that integrates cutting, shipping and walking. It is used to cut underground roadways of any cross-sectional shape. It has become an important indicator to measure the degree of mechanization of a coal production enterprise. The support leg of the roadheader is an important part of the roadheader. The size of the connecting holes at both ends of the support leg of the roadheader is relatively large, and the requirements for dimensional tolerance and geometrical tolerance are relatively high, and it needs to be processed on a boring machine. At the same time, due to the particularity of the structure and shape of the support legs of the roadheader, it is difficult to determine the positi...

AI Technical Summary

Problems solved by technology

This process method is not only time-consuming and labor-intensive, but also has low positioning accuracy, inconvenient alignment and adjustment during processing, and difficult quality control, which affects the improvement of production efficiency and increases the cost.

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