Strain clamp crimping device and crimping process

Abstract

The invention discloses a strain clamp crimping device and a crimping process. The strain clamp crimping device comprises two die bodies and round metal tubes, wherein the two die bodies can move in the opposite directions, and the round metal tubes can be located in the two die bodies. The two die bodies can form a hexagonal inner cavity after being combined. Plastic protecting sleeves are arranged outside the round metal tubes in a sleeving mode. After the two die bodies are combined, the plastic protecting sleeves extrude the outer surfaces of the round metal tubes to form a corner structure. After the structure and the process are adopted, burr trimming is completely eliminated, in the corresponding process, two traditional key working procedures are omitted, ten minutes is saved, and the time for crimping one strain crimping tube is shortened to be 20 minutes from 30 minutes in the past; polishing damage to the surface of an aluminum tube is reduced, the surface of the aluminum tube keeps natural and smooth, and corona loss is reduced; no trimming burrs are generated on a crimped strain clamp, and therefore the overall attractiveness of the strain clamp is improved; generation of waste such as iron powder and aluminum powder is avoided, soil pollution is avoided, wire corona is reduced, and the crimping device saves energy and is environmentally friendly.

Description

[0001] technical field [0002] The invention relates to a hydraulic connection of a strain clamp used for overhead cable construction, in particular to a tension clamp crimping device and a crimping process. Background technique [0003] The tension clamps used in the construction of overhead cables usually need to crimp the surface of the circular metal tube of the clamp. However, due to the plasticity of the circular metal tube, under the extrusion of a steel mold with higher hardness, Obvious deformation occurs; in addition, there is direct contact between the circular metal tube and the steel mold. When crimping, the traditional mold is used for crimping. The friction force acting on the circular metal tube causes the material on the surface of the circular metal tube to be displaced, and the metal materials in the four areas A, B, C, and D are extruded and accumulated toward the opening direction. This produces the phenomenon of flashing and burrs. At the same time, u...

AI Technical Summary

Problems solved by technology

[0004] 1. The traditional process takes a long time; the main process flow of the traditional crimping process of tension clamps and the time statistics of each process, there are two key processes in the main process (clear the flash after all the steel pipes are pressed, and pass the inspection) and (After the crimping is completed, check the crimping size and file off the flash and burrs). These two processes each take 5 minutes, accounting for 1 / 3 of the total time;

[0005] 2. The traditional process aggravates the corona loss of the tension clamp; in the process, the surface of the tension clamp is polished, and the surface of the tension clamp is treated twice to make the surface of the tension clamp more prone to corona;

[0006] 3. There are flashes and burrs in the tension clamps crimped by the traditional process, which affects the appearance

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