Welding and positioning system of automobile seat back framework

Abstract

The invention discloses a welding and positioning system of an automobile seat back framework. The welding and positioning system can precisely align and sequentially welds components of an automobileseat back, so that thermal deformation of the components during the welding process is effectively prevented, the components can be positioned and welded in an integrated manner, and the relative positioning precision of the components is ensured. The welding and positioning system comprises steel wire component positioning mechanisms arranged on a base, first compressing mechanisms, second compressing mechanisms, a handrail support compressing mechanism, connecting support supporting mechanisms and a sliding mechanism; the welding and positioning system is characterized in that a first support seat and a plurality of second support seats are arranged on the base; the steel wire component positioning mechanisms are symmetrically arranged on the two sides of the lower end of the base; thesecond compressing mechanisms are symmetrically arranged on the two sides of the upper end of the base; a guiding seat body is arranged in the middle of the lower end of the base; the first compressing mechanisms are symmetrically arranged on the two sides of the guiding seat body; a sliding mechanism is arranged in the middle of the upper end of the base; the handrail support compressing mechanism is arranged at the upper end of the sliding mechanism; and the connecting support supporting mechanisms are symmetrically arranged in the middle of the upper end of the base.

Description

technical field [0001] The invention belongs to the technical field of welding fixtures, and in particular relates to a welding positioning system for an automobile seat back frame. Background technique [0002] With the continuous development of industrial technology, people have higher and higher requirements for car interiors, not only considering the comfort and beauty of the interiors, but also requiring the integrated installation of various interior decorations on the car to ensure installation consistency. Common car seats are generally provided with a seat back, which can support people's waist and back. A good seat back can solve the fatigue problem of the occupant, and can achieve the purpose of safety, convenience and comfort. [0003] An existing car seat backrest frame is composed of a metal plate stamping part and a steel wire assembly welded on the metal plate stamping part, two supporting square tubes, two armrest supports and two connecting supports. The st...

AI Technical Summary

Problems solved by technology

The positioning welding position and size of the above parts welded on the metal plate stamping parts require accuracy. In the process of welding the above seat back, due to group positioning welding, welding errors will occur for each group of parts welded, and the cumulative Welding errors make it difficult to ensure that each welding size meets the requirements, which directly affects the welding accuracy of the seat back

[0004] In addition, since metal welding will generate a large amount of heat energy, the parts welded on the metal plate stamping parts are prone to thermal deformation during the welding process. If there is no suitable positioning device, the parts and metal plate stamping parts will be welded during the welding process. Excessive gaps will be generated due to thermal deformation, resulting in poor welding or even lack of welding, which will seriously affect product quality

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