Auxiliary frame crescent hole forming equipment

Abstract

The invention relates to auxiliary frame crescent hole forming equipment. The forming equipment is used for conducting punching forming on crescent holes in the ends of multiple connection arms of anauxiliary frame synchronously; the forming equipment comprises an equipment frame, a plurality of punching units slidably arranged on the equipment frame, a positioning frame which is fixedly arrangedon the equipment frame, located between the multiple punching units and used for fixing the auxiliary frame, and a control system for controlling the punching units to work; the equipment frame is provided with a plurality of sets of slide rails; each punching unit comprises a supporting frame slidably arranged on the corresponding slide rail, and a punching module which is arranged on the supporting frame and used for crescent hole punching. The auxiliary frame crescent hole forming equipment can simultaneously conduct post-welding synchronous punching on the ends of the four connection armsof the auxiliary frame, the situation that the connection arms are subjected to punching machining in sequence is avoided, the machining efficiency is greatly improved, in addition, the position precision of the crescent holes on the auxiliary frame is ensured, and the product quality is improved.

Description

technical field [0001] The invention relates to a forming device for a crescent hole of an auxiliary frame. Background technique [0002] At present, when processing the hole position of the front / rear sub-frame of the automobile chassis, the method of punching after welding is mainly used for the front / rear sub-frame of the automobile chassis with a relatively regular shape, because it can obtain better hole position accuracy. However, the shape of some automobile chassis frames is extremely irregular. In many cases, there is no space for punching devices. It is forced to process the mounting holes on the bracket before welding, and then weld the bracket to the designated position on the chassis. Due to the dual effects of secondary clamping positioning and welding deformation, the position accuracy of the hole position relative to the entire automobile chassis frame is very poor, which seriously affects the stability of the entire vehicle. like figure 1 As shown, the end...

AI Technical Summary

Problems solved by technology

However, the shape of some automobile chassis frames is extremely irregular. In many cases, there is no space for punching devices. It is forced to process the mounting holes on the bracket before welding, and then weld the bracket to the designated position on the chassis. Due to the dual effects of secondary clamping positioning and welding deformation, the position accuracy of the hole position relative to the entire automobile chassis frame is very poor, which seriously affects the stability of the entire vehicle.

like figure 1 As shown, the ends of the four outwardly extending arms of a subframe need to be processed with semicircular holes (the upper and lower plates of one arm need to be processed with semicircular holes). In the prior art, the semicircular holes are punched out first. However, the sub-frame is formed after welding each component, so the position accuracy of the punched out semicircular hole is difficult to guarantee, and the ends of the four connecting arms are punched separately, which is slow and inefficient

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