Inductive heating and open-close type heating fixture based on sensor

Abstract

The invention discloses an inductive heating and open-close type heating fixture based on a sensor. A workpiece is placed in a positioning tool, the positioning tool is lifted to a designated positionthrough a lifting mechanism, and then the workpiece pipe is accurately positioned through a centering mechanism, a high-frequency welding machine controls the air cylinder to move, the sensor is closed, a digital high-frequency heating device heats and welds a welding ring to fill the welding seam area, so that the welding effect is achieved; after the welding is completed, the sensor is opened,and the workpiece is taken out, and the whole welding process is completed. The open-close type sensor mechanism and the high-frequency welding machine are matched to realize the precision cooperationof the welding ring and the part to be welded, the application range of the sensing brazing is widened. The mechanism is controlled in a digital manner, the full-automatic welding process and the precision cooperation of the welded part and the welding ring are guaranteed, so that the consistency quality of the product is achieved. Single-station and multi-station welding operations can be adopted by the mechanism, and the mechanism can be matched and used according to the actual situation of the site. The fixture solves the problem of welding of special-shaped products.

Description

technical field [0001] The invention belongs to the technical field of induction heating, and relates to the cooperative use of a split-type inductor, digital high-frequency machine equipment and a cylinder, in particular to a split-type inductor induction heating device. Background technique [0002] The welding of aluminum and copper parts in pipelines in the automotive air-conditioning industry and refrigeration industry requires high-frequency induction heating equipment and supporting equipment for welding operations. Traditional welding adopts artificial flame method or ordinary induction brazing method. The artificial flame method not only requires high manual experience, it is difficult to ensure the consistent stability of the product, but also the gas is not fully burned, which increases the cost and pollutes the environment, which is not conducive to reducing the production cost and ensuring the stability of the product. The inductors used in ordinary induction b...

AI Technical Summary

Problems solved by technology

The artificial flame method not only requires high manual experience, it is difficult to ensure the consistent stability of the product, but also the gas is not fully burned, which increases the cost and pollutes the environment, which is not conducive to reducing the production cost and ensuring the stability of the product

The inductors used in ordinary induction brazing are mostly multi-turn annular inductors. If the shaft diameter of the welding part of the workpiece is small and the two ends are large, such as the welding of the plate heat exchanger in the air conditioner, the inductor cannot be taken out after the welding is completed.

For similar special-shaped workpieces, the ordinary induction brazing method using a multi-turn ring inductor cannot meet the actual application requirements, so it is necessary to design a new welding method and mechanism to solve the problems of the existing mechanism

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