Positioning tool for welding car head underframe

Abstract

The invention discloses a positioning tool for welding a car head underframe, wherein the chassis can be position accurately to avoid welding deformation and guarantee the welding dimension and the chassis can be taken down quickly after welding. The tool comprises a base, a welding chassis slidably arranged on the base and a welding frame arranged on the base; an in-out door where the welding chassis penetrates is arranged on the welding frame, a welding cavity for accommodating a car head is arranged in the welding frame, the in-out door communicates to the welding cavity, and a chair bracket placing seat is arranged on the welding chassis; a pedal tightening device is arranged on the welding chassis, the pedal tightening device comprises a piston cylinder and two piston rods which are slidably arranged at two ends of the piston cylinder, separately, an air chamber is arranged in the piston cylinder, a roller is arranged at the lower end of the welding chassis, a rolling track is arranged on the upper surface of the underframe, a soft air tube is paved in the rolling track, the roller is located in the rolling track, the lower end of the roller is pressed to the soft air tube, and one end of the soft air tube is closed while the other end of the soft air tube communicates to the air chamber.

Description

technical field [0001] The invention relates to the field of vehicle processing, in particular to a positioning tool for welding the underframe of a vehicle head. Background technique [0002] With its advantages of strong applicability, flexible maneuverability, simple maintenance, convenient maintenance, and low price, the electric flatbed truck can flexibly walk through narrow roads, and is widely used in households, urban and rural areas, individual rental, factory areas, mining areas, sanitation, and community cleaning Such short-distance transportation fields are more common in foreign countries, and domestic attention has gradually increased recently. The front of the electric flatbed car is mainly welded by multiple parts such as the front gear, the rear gear, and the chassis. The chassis 1 includes a seat bracket 11 and two pedals 12. There is no connecting structure between the two pedals, so it is easy to appear A series of quality problems such as welding deform...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages in the prior art that welding deformation and size deviation between the two pedals are easy to occur when the underframe is welded, and that the underframe is difficult to remove from the welding mold after welding and forming, and to provide a Accurate positioning to avoid welding deformation, ensure the welding size and quickly remove the positioning tool for the head chassis welding after welding

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