Square tube bending and spot welding device for guardrail production

Abstract

The invention discloses a square tube bending and spot welding device for guardrail production, and relates to the technical field of guardrail production. The problems that an existing bending mode is cumbersome in actions, needs to consume large labor of workers, and is low in welding efficiency are solved. The device comprises a base; the front end surface of the base is axially connected withan operating handle; the interior of the base is slidably connected with a driving sliding block; the bottom of a lifting connecting rod is hinged to the top of a welding machine head; the inner sideof the rear portion of the base is vertically and axially connected with a spot welding driving intermediate transmission shaft; and the inner side of the rear portion of the base is axially connectedwith a spot welding driving lead screw in the horizontal direction. According to the device, the bending and spot welding actions of a square pipe can be completed only by rocking a hand wheel, so that the use is easy, and the operation is convenient; and bending is carried out through a lead screw nut transmission pair and a crank sliding block mechanism during bending, so that the bending forceis small, the labor amount of workers is reduced, and the working efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of guardrail production, in particular to a square tube bending spot welding device for guardrail production. Background technique [0002] In the process of iron fence production, square pipes often need to be bent and welded. Workers need to use tools to draw a specified shape on the square iron pipe. After the square iron pipe is drawn by the worker, the worker needs to follow along The shape on the square iron pipe is cut. When the shape on the square iron pipe is cut by the worker, the worker needs to bend and weld the square iron pipe to complete the bending of the square pipe. Then, the worker needs to hold the square iron pipe with his left hand. On one side of the pipe, the worker's right hand needs to hold the welding part, and the worker's right hand needs to control the welding part to weld the contacting square iron pipe. [0003] Based on the above, in the existing bending method, the left and...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a square tube bending spot welding device for guardrail production, to solve the existing bending method proposed in the above background technology, the left and right hands of the worker need to hold the left and right sides of the square iron tube respectively. The action at the end is more complicated, and at the same time, it takes a lot of effort for the worker to move the square iron pipe with his left hand to one side and the left, and the right hand of the worker not only needs to hold the welding part all the time, but also needs to control the cutting position of the welding part on the square iron pipe The problem of low efficiency of welding

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