Welding fixture sharing upper counterweight frame and lower counterweight frame

Abstract

The invention discloses a welding fixture sharing an upper counterweight frame and a lower counterweight frame. The welding fixture is formed by connecting a base plate and two vertical plates which are perpendicular to the base plate; the lengths of the base plate and the vertical plates are consistent with the length of the upper counterweight frame or the lower counterweight frame; the heightsof the vertical plates are greater than the width of a panel of the lower counterweight frame, and is less than the width of a panel of the upper counterweight frame; through circular holes corresponding to the position of a circular hole of the upper counterweight frame are formed in the vertical plates; a pin rod is matched with the circular holes in diameter; when the lower counterweight frameis fixed, the panel of the lower counterweight frame is aligned with the outer sides of the vertical plates; a plurality of connecting strips are pressed against the panel of the lower counterweight frame and the side plates of the vertical plates; when the upper counterweight frame is fixed, the panel of the upper counterweight frame is aligned with the inner sides of the vertical plates; the outer side of the panel of the upper counterweight frame exceeds the vertical plates; the pin rod penetrates through the circular holes and is locked; and extending base plates are mounted on the side surfaces of the vertical plates. By using the welding fixture, welding and positioning can be performed accurately; measurement and alignment are not required to be performed; and in addition, the uppercounterweight frame and the lower counterweight frame can be shared, so that the reliability is improved.

Description

technical field [0001] The invention relates to a welding tool, in particular to a welding tool shared by upper and lower counterweight frames. Background technique [0002] During the installation of the elevator, counterweights should be used to balance the weight of the car. The counterweights are a combination of many blocks stacked together. During installation, there is a counterweight frame on the upper and lower sides, which are the upper counterweight frame and the lower counterweight respectively. The frame and the two counterweights are assembled by plate welding. In the past, the welding work needed to be done manually, and it was difficult to guarantee the accuracy. [0003] The use of welding equipment can reduce the cumbersomeness of the work, but because the shapes of the upper counterweight frame and the lower counterweight frame are not exactly the same, a set of welding equipment cannot be shared. It is very cumbersome to manufacture two kinds of welding ...

AI Technical Summary

Problems solved by technology

[0002] During the installation of the elevator, counterweights should be used to balance the weight of the car. The counterweights are a combination of many blocks stacked together. During installation, there is a counterweight frame on the upper and lower sides, which are the upper counterweight frame and the lower counterweight frame respectively. frame, the two counterweights are assembled by flat plate welding. In the past, the welding work needed to be done manually, and it was difficult to guarantee the accuracy

[0003] The use of welding equipment can reduce the tediousness of the work, but because the shapes of the upper counterweight frame and the lower counterweight frame are not exactly the same, a set of welding equipment cannot be shared

It is very cumbersome to manufacture two kinds of welding tools separately. At the same time, because the size of the two is not much different, misoperations are often caused in production, and inappropriate tooling is selected for mixed use, resulting in production errors.

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