Pneumatic clamping device used for welding bolt on flange

Abstract

The invention discloses a pneumatic clamping device used for welding a bolt on a flange. The pneumatic clamping device comprises a base, a vertical type bearing column, a connecting rod base, a flange placement chassis, a cylinder connecting rod base and a clamping jaw; the vertical type bearing column is fixed on the base, the connecting rod base is installed on the vertical bearing column, the flange placement chassis is placed on the connecting rod base, the cylinder connecting rod base is fixed on the connecting rod base through the bolt, one end of the cylinder connecting rod base is connected with a cylinder, the other end of the cylinder connecting rod base is connected with the clamping jaw, and the clamping jaw is installed above the connecting rod base. The pneumatic clamping device effectively guarantees rapid clamping action and good clamping effect, the undesirable phenomena of welding deformation and displacement are effectively reduced, the pneumatic clamping device is suitable for welding the bolt in advance or welding the bolt after welding the flange and a connecting pipe, the processes can be switched flexibly, and the unnecessary waiting time in the production is saved.

Description

technical field [0001] The invention relates to the technical field of flange welding bolts of catalytic converters, in particular to a pneumatic clamping device for flange welding bolts. Background technique [0002] Pollutants emitted by diesel engine exhaust have caused serious environmental pollution problems, and the use of catalytic purification technology to reduce pollution and emissions is one of the key technologies for aftertreatment of diesel engine exhaust. Most of the existing purifiers are connected to the exhaust pipe by means of flange connection, and the pre-welded bolts on the flange can effectively reduce the installation mistakes of the workers of the vehicle factory and save the time of bolt installation. [0003] Flange welding bolts generally use horizontal quick clamps to manually clamp the flange and bolts. This method has low tightening efficiency and unreliable tightening effect. It is suitable for small batch manual welding and cannot completely ...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the defects of low manual clamping efficiency, unreliable clamping effect, and inability to effectively prevent dislocation, and provides a pneumatic clamping device for flange welding bolts. After positioning, place the welding bolts in the bolt positioning holes, and then use the special clamping jaws for cylinder connection to clamp the flange. After the welding is completed, loosen the clamping jaws to easily remove the product

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