Method and equipment for manufacturing screw rod

Abstract

The invention relates to a manufacturing method of a screw and manufacturing equipment thereof.. A standard screw is selected as an explorator; the standard screw or the rotation shaft of the screw to be processed are driven by a motor so that the standard screw or the rotation shaft of the screw to be processed can synchronously rotate by a transmission mechanism; a flat steel bar is heated by a welding gun; the edge of the flat steel bar burned to red by the welding gun is distorted and heated along the rotation shaft of the screw to be processed with the rotation of the screw tooth of the standard screw, so as to form the prefabricated screw tooth of the screw; subsequently, the welding rod of the welding gun is aligned to the joint seam between the prefabricated screw tooth and the initial end of the surface of the rotation shaft; the prefabricated screw tooth rotates along the rotation shaft while being welded, thus forming a screw consistent with the standard screw. Compared with the prior art, the method and the equipment overcome the problems that the efficiency is low and the quality is not easy to be ensured as the single ring of screw tooth is welded end to end; furthermore, no rim leftover is generated by a punching ring, the working efficiency is improved by times, and the production cost is obviously reduced.

Description

technical field [0001] The invention relates to mechanical technology, in particular to a screw manufacturing method and screw manufacturing equipment. Background technique [0002] The screw is made of a shaft and a screw blade or a screw tooth. It is usually used to transport gas, liquid or granular solids. It has a wide range of uses. For example, many air compressors and pumps use screws. It is used in food processors to transport Rice flour or flour to make cakes and puffed foods. The traditional screw production method is mainly processed by machine tools, as introduced in the Chinese patent 00106042.2 "Manufacturing method of feed screw for injection molding machine". The thread with a certain interval is cut and milled with coarse material by lathe, and the accuracy is easy to be guaranteed, but The amount of waste is large and the processing efficiency is low; there is another method for making the screw in the food processing machine, such as figure 1 As shown, f...

AI Technical Summary

Problems solved by technology

The traditional screw production method is mainly processed by machine tools, as introduced in the Chinese patent 00106042.2 "Manufacturing method of feed screw for injection molding machine". The thread with a certain interval is cut and milled with coarse material by lathe, and the accuracy is easy to be guaranteed, but The amount of waste is large and the processing efficiency is low; there is another method for making the screw in the food processing machine, such as figure 1 As shown, first select a steel plate with the same thickness as the thread to punch out a circular washer, the inner hole of which is matched with the rotating shaft 22, and then saw along the radius, twist and pull at the saw kerf by mechanical means to form a circle of thread, pull The opening distance is equivalent to the thread pitch, and then the ring screw sleeve is welded on the two sides C and D of the rotating shaft, and then inserted into the above-mentioned screw teeth in turn, and the adjacent saw edge ends A and B are welded end to end, and the weld seam is polished. polished to form a screw

This method can save materials, but the processing efficiency is lower, especially the radial welds at A and B are difficult to grind and polish. In addition, the distance of twisting and pulling at the saw kerf and multiple manual splicing and welding connections make the accuracy consistency relatively low. Low, production quality is not easy to guarantee

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