Machining method for ultra-thin rod products and special jig

Abstract

The invention belongs to the industry of plastic molds. A machining method for ultra-thin rod products comprises the steps that (1) after delivery from a storage, thin rod materials with the diameter ranging from phi 0.15 to phi 0.3 are cut off; (2) a mirror surface grinding machine is adopted to conduct machining and grinding on the overall length of the thin rod materials; (3) a stepped grinding machine provided with a jig special for machining is adopted to conduct rough taking, semi accurate grinding and accurate grinding; (4) acceptance checks are carried out, and the products with the length smaller than 100nm, the outer circle tolerance smaller than 0.03mm and the circular degree smaller than 0.002 are obtained. According to the machining method for the ultra-thin rod products, the problem of machining the ultra-thin rod products ranging from phi 0.15 to phi 0.3 is solved, the machining technology is changed, an existing machining technology can only machine products with the diameter more than phi 0.3, the cost is low, and market competition is facilitated. The invention further discloses the special jig for machining the stepped grinding machine, the special jig is newly designed according to machining characteristics and is comprehensively designed on the basis of special jigs for a pass-type centerless grinding machine and the stepped grinding machine, the structure is simple, assembling is convenient, the cost is low, and production requirements are met.

Description

technical field [0001] The invention belongs to the plastic mold industry, in particular to the processing technology of precision plastic mold ultra-fine rod products. Background technique [0002] Φ0.15-Φ0.3 ultra-thin rod products are widely used in plastic precision molds. At present, there is no technology in China that can process such ultra-fine products with strict dimensional tolerance requirements. At present, they all rely on foreign imports, which are expensive. The cycle is long. [0003] At present, the current domestic processing is carried out according to the following route. After the material is delivered from the warehouse, it is cut to length. After cutting, the D rod is cut and finely ground by centerless grinding, and the mirror surface grinder processes the full length. Since the thinnest supporting plate of the centerless grinder is 0.4mm, due to the limitation of the supporting plate, it can only process thin rod products above Φ0.3 at present, and...

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Problems solved by technology

[0004] The purpose of this invention is to solve the problem that Φ0.15-Φ0.3 ultra-fine rods cannot be produced in China, and provide a processing method for ultra-thin rod products, which has simple and reasonable process, low processing cost and high quality processed products

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