Tool clamp for automatically welding non-standard flange of small branch pipe

Abstract

The invention discloses a tool clamp for automatically welding a non-standard flange of a small branch pipe. The tool clamp comprises a conversion disc, flange clamping blocks, connecting rods, springs, bolts and nuts, wherein the conversion disc is an annular component, small round holes penetrating along the diameter are formed in the two sides of the conversion disc, the flange clamping blocks are used for clamping the non-standard flange, each flange clamping block comprises a clamping groove part and a fixing sleeve fixed at the bottom of the clamping groove part, each fixing sleeve is provided with a hexagonal hole, each connecting rod comprises a hexagonal column body and a screw rod part which are connected with each other, the hexagonal column bodies are inserted into the hexagonal holes of the flange clamping blocks and are fixed with the hexagonal holes of the flange clamping blocks through the nuts, the screw rod parts penetrate through the small round holes of the conversion disc, the springs are arranged on the connecting rods in a sleeving mode and clamped between the inner ring side face of the conversion disc and the side faces of the hexagonal column bodies of the connecting rods, the non-standard flange is fixedly clamped in the clamping groove parts of the flange clamping blocks through the bolts, and the nuts are screwed into the outer ends of the connecting rods and adjust and lock the flange clamping blocks through rotation. The tool clamp is clamped and fixed to a three-jaw chuck of automatic welding equipment to complete welding. The tool clamp has the advantages of being high in efficiency, convenient to operate, wide in application range and the like.

Description

technical field [0001] The invention relates to the manufacture of marine low-speed diesel engine pipe fittings, in particular to a fixture for automatic welding of non-standard flanges of small branch pipes, and belongs to the technical field of diesel engine manufacture. Background technique [0002] The marine low-speed diesel engine is equipped with various pipelines, and there are many small branch pipes connected to the pipeline, and the connection of the small branch pipes generally adopts flanges. Small branch pipe flanges usually use round standard flanges, and only a few cases use non-standard flanges, such as waist flanges, rectangular flanges, square flanges, etc. The welding operation of the circular standard flange is generally completed on the automatic welding equipment, and the three-jaw chuck of the automatic welding equipment is used for clamping. For the welding of various non-standard flanges, automatic welding equipment is not competent, because the th...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a tooling fixture for automatic welding of non-standard flanges of small branch pipes in order to solve the bottleneck problem that automatic welding equipment cannot weld non-standard flanges, which is installed on the three-jaw chuck of automatic welding equipment. It can clamp non-standard flanges stably and reliably, complete the automatic welding of non-standard flanges, achieve the effects of improving work efficiency, reducing labor load, stabilizing welding quality, expanding the compatibility of automatic welding equipment and improving equipment utilization.

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