Automatic pipe expanding machine

Abstract

The invention relates to an automatic pipe expanding machine. The automatic pipe expanding machine comprises a rack and a power distribution control box, wherein a pipe expanding material loading device is arranged on the rack; the pipe expanding material loading device comprises a material loading pipe expanding device; the lower part of the material loading pipe expanding device is connected with a material loading rotating shaft; the material loading rotating shaft is connected to a pipe expanding rotating motor; the material loading pipe expanding device comprises a material loading rotating seat; material loading fixing sliding blocks are arranged on the material loading rotating seat through material loading fixing bolts; pipe expanding movable arc blocks are uniformly placed on thematerial loading rotating seat; each pipe expanding movable arc block comprises a fan-shaped block and an arc-shaped column plate, and the fan-shaped block is provided with a pipe expanding movable groove matched with the corresponding material loading fixing sliding block, and the arc-shaped column plate is arranged on the outer side of the corresponding fan-shaped block; and a pipe expanding pulling device is matched with the lower portions of the arc-shaped column plates. According to the automatic pipe expanding machine, the pipe expanding material loading device is matched with the pipe expanding pulling device to realize expansion of a pipeline opening, the pipe expanding material loading device achieve expansion of a pipeline arranged on the pipe expanding material loading device through the multiple rotating pipe expanding material loading devices, the situation that the center of the pipeline does not deviate during the whole pipe expanding process can be guaranteed, and the situation that the pipeline is stuck after pipe expanding is avoided.

Description

technical field [0001] The invention relates to the field of pipe processing equipment, in particular to an automatic pipe expanding machine. Background technique [0002] During the layout of the pipeline, if the pipeline is not long enough and needs to be butted, the usual method is to use a direct joint to connect two straight pipes to each other, and then weld them to death after the butt joint is completed, but the stress at the weld is relatively concentrated. Welds are prone to weld cracking, which causes leakage. Therefore, in order to reduce the number of welds, the existing method is to expand one of the pipes, insert the other pipe into the expanded pipe, and then Butt welding is performed, compared with the traditional process, there are fewer direct joints, so there is one less weld seam, which is safer. [0003] Most of the existing pipeline expansion is manually operated, and the extrusion of the expansion head is used to realize the expansion of the pipeline...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing pipeline expansion is manually operated, and the extrusion of the expansion head is used to realize the expansion of the pipeline. The manual operation is inefficient and time-consuming. Therefore, some automatic expansion equipment has appeared. The existing expansion equipment Most of them fix the product, and then push the expansion head into the pipe hole through the pushing device to realize pipe expansion. However, there are big problems in the existing pipe expansion equipment, and it is easy to cause the expansion head to be separated from the pipe during the insertion process. If the pipe is not concentric, it will lead to eccentricity of the pipe head after pipe expansion, and there will also be a situation where the pipe expansion is stuck

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