Locating clamp for pipeline machining

Abstract

The invention relates to a locating clamp for pipeline machining. The locating clamp comprises a machine frame. A guide sleeve is fixedly installed on the machine frame, and one end of the guide sleeve is provided with internal threads. A threaded rod is connected to the guide sleeve. A fixed rotating wheel, external threads matched with the internal threads, a sliding portion matched with the guide sleeve in a sliding mode and a lead screw axially extending from the center of the sliding portion are sequentially arranged on the threaded rod. The lead screw is connected with a sliding sleeve matched with the guide sleeve in a sliding mode through threads. The end, extending out of the guide sleeve, of the sliding sleeve forms a hinged portion. The sliding sleeve is provided with a sliding groove. One side of the guide sleeve is fixedly connected with a guide block matched with a guide groove. At least three connecting rods are hinged to the hinged portion. The connecting rods are movably hinged to the supporting rods. The threaded rod and the lead screw are driven by the rotating wheel to rotate, so that the sliding sleeve is driven to horizontally move under the action of the guide sleeve and the guide block, and then the connecting rods drive the supporting rods to tightly support or release the pipeline; in this way, the pipeline is conveniently fixed and is convenient disassemble, the labor intensity of workers is relieved, and production efficiency is improved.

Description

technical field [0001] The invention relates to a positioning fixture, in particular to a positioning fixture for pipeline processing. Background technique [0002] In the prior art, pipes are often processed in various ways, such as welding flanges, drilling or cutting off pipes, etc. Therefore, it is often necessary to position and fix pipes. However, pipes are different from ordinary workpieces and are difficult to fix and process. For example, when welding flanges, the connection between the flange and the pipe is not firm before welding. Usually, the flange needs to be placed flat on the workbench, and then the pipe is placed vertically on the flange body, so as to enhance the welding stability. stability. However, there are certain defects in this method. Welders need to lower their heads and look down at the welding posture to complete the welding, which not only increases the difficulty of welding, but also causes certain damage to the cervical and lumbar spine of t...

AI Technical Summary

Problems solved by technology

However, there are certain defects in this method. Welders need to look down at the welding posture to complete the welding, which not only increases the difficulty of welding, but also causes certain damage to the cervical and lumbar spine of the welder due to long-term bad welding posture. , which increases the labor intensity of welding workers, while the production efficiency is low

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