Hot-melting and cold-pressing welding machine and welding method thereof

Abstract

The invention relates to a hot-melting and cold-pressing welding machine. The hot-melting and cold-pressing welding machine includes a frame, wherein the frame is provided with three layers of bedplates; two gas storage tanks are mounted on the bedplate on the first layer; the bedplate on the second layer is located above the bedplate on the first layer; a workpiece positioning mechanism, a guide rail carrying the workpiece positioning mechanism, and a station driving cylinder driving the workpiece positioning mechanism to perform translational motions are mounted on the bedplate on the second layer; the bedplate on the third layer is located above the bedplate on the second layer, and a lifting type hot-melting mechanism and a lifting type cold-pressing mechanism are arranged in sequence on the bedplate on the third layer in the translation direction of the workpiece positioning mechanism. A pressure head of the original hot-riveting welding machine has the heating and pressing functions, so that heating and pressing can be carried out at the same time and completed through one step; in the hot-melting welding machine, heating and pressing are updated into two different procedures, so as to achieve great improvements in various aspects; the hot-melting and cold-pressing welding machine has a high heating speed, so that the product welding cycle is shortened by 50 percent, which completely meets the production requirements; the welding effect is good, the phenomena of ineffective or misplaced welding seldom occur, and the product rejection rate is greatly reduced; faults can be easily detected, so that the maintenance is convenient.

Description

technical field [0001] The patent of the present invention relates to a hot-melt cold-press welding machine and its welding method. Background technique [0002] The hot-melt cold-press welding machine is based on the original hot riveting welding machine, and its welding method and welding process have been improved and innovated for injection molded parts welding equipment. The welding of the product by the original heat riveting welding machine is completed in one process, heating and pressing are carried out at the same time, but this method has several disadvantages in the welding process: ①Due to the slow temperature rise, the heating time of the solder joints of the product is too long, resulting in The welding cycle is too long, which cannot meet the production demand; ②The welding effect is not ideal, and the scrap rate of welded products is high; ③The welding position is unstable, and the solder joints often shift, and the solder joint adjustment is troublesome...

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Problems solved by technology

[0003] The object of the present invention is to provide a hot-melt cold-press welding machine and its welding method, which solves the problems of insufficient welding, poor welding of hot riveting welding machines, frequent deviation of solder joints of hot riveting welding machines and hot welding problems. Problems such as long welding cycle of riveting welding machine

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