Die core production technology for forming high-precision spiral plastic product

Abstract

The invention discloses a die core production technology for forming a high-precision spiral plastic product. The die core production technology comprises the following steps: electroforming production of a die core workblank, detection of the die core workblank, production of a processing jig, first-time grinding of the die core workblank, second-time grinding of the die core workblank and third-time grinding of the die core workblank. Through the manner, the die core production technology utilizes electroforming to produce the die core workblank; the die core for forming the plastic productis processed through the precise five-axis CNC; the precision of the die core is high, the precision of the indent spiral structure of the die core workblank is determined, a tailor-made detecting jigis utilized to detect the internal diameter of a spiral hole to improve the detecting convenience and precision; the processing jig and a grinding machine magnetic table are utilized to position thedie core workblank, so that high precision grinding processing of the end face and the excircle of the die core workblank is realized, the requirements for the concentricity and the perpendicularity of the die core are met, and the processing precision is improved.

Description

technical field [0001] The invention relates to the technical field of plastic molds, in particular to a mold core production process for forming high-precision spiral plastic products. Background technique [0002] With the rapid development of plastic industry and mold processing and manufacturing technology, people have more and more expectations for the lightweight of various products in life, and the application scope and demand of plastic products continue to expand. Mold is the main manufacturing equipment of plastic products, and it is also the main means of mass production of plastic products. In the field of high-precision plastic products, the processing and manufacturing technology of mold parts has more stringent requirements and challenges. [0003] High-precision spiral products are more commonly used in worms in transmission equipment. The forming cores of such high-precision spiral parts are difficult to process. The traditional worm is made of metal, and ...

AI Technical Summary

Problems solved by technology

Due to uneven shrinkage and inconsistent molecular orientation in plastic injection molding, the accuracy of plastic products fluctuates within a certain range, which requires the processing accuracy of mold parts for molding plastic products to be controlled within a smaller range, and the convex spiral When the structure is reflected in the mold core, it will have a concave shape, which is difficult to realize with conventional manufacturing technology, and it is also difficult to control and detect machining accuracy, which needs to be improved

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