Flexible hold-down device for welding

Abstract

The invention discloses a flexible hold-down device for welding. The flexible hold-down device comprises a hold-down assembly and a base for supporting the hold-down assembly, the hold-down assembly comprises a pressing device, at least one pressing arm, at least one pressing block and at least one supporting block, the pressing arms are connected with the pressing device, a plurality of pin holes are formed in the pressing arms, and the pin holes are distributed in a linear array at preset intervals in the length direction of the pressing arms; the pressing blocks are fixedly connected to the lower parts of the pressing arms through the pin holes; and the supporting blocks are fixedly connected to the base, and the supporting blocks are correspondingly arranged below the pressing blocks. The pressing arms are driven by controlling the pressing device so as to complete lifting and pressing actions. The flexible hold-down device for welding has higher flexibility and can be recycled for multiple times to adapt to different clamped objects, meanwhile, the design workload is reduced, the design efficiency is greatly improved, the project period is effectively shortened, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile welding fixtures, in particular to a flexible holding device for welding. Background technique [0002] Automobile welding fixture is a key tooling in the production of automobile body. The importance of welding fixture in the automobile industry is self-evident. Due to the typical non-standard nature of the welding fixture tooling, it has disadvantages such as poor versatility and few application scenarios. However, its design workload can reach more than half of the body welding production line, so the welding fixture can also be called the body assembly line. core part. [0003] Commonly used welding fixture design has three basic components, namely support, positioning and clamping part. The most basic positioning unit for workpiece positioning in fixture design is the common support block, pressing arm, pressing block and pin. Among them, the pressing arm is a very important part of the ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing pressure arms commonly used in fixture assembly are designed in a non-standard form, which has many problems. First, the design workload of the existing non-standard pressure arms is large, and a lot of manpower and time costs need to be wasted; secondly, the existing The structure of the non-standard compression arm is complex, and the processing cost is high; finally, the existing non-standard compression arm also has the disadvantages of low flexibility, can only compress and support specific parts, and cannot be recycled for multiple times

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