A kind of processing method of metal spiral bar

Abstract

The invention relates to a processing method for a metal spiral rib used in a non-metallic directional pipe spiral groove forming die. The steps are: pre-processing, grinding, comprehensive machining, and post-processing; in the pre-processing stage, quenching and tempering, rough turning, aging and finishing machining are completed in sequence, and processing allowance is reserved for rough turning, and finishing turning The coaxiality of the inner and outer circles is guaranteed at the same time, the grinding allowance is reserved for the outer circle, and the grinding allowance is reserved for the inner hole; in the grinding process stage, the inner hole grinding and matching grinding processing are completed in sequence, and the inner hole of the workpiece is ground to determine the size; the inner circle Matching and grinding the outer circle of the mandrel to determine the size; in the comprehensive machining stage, the drilling of the end face, finishing turning, grinding the outer circle, drilling of spiral rib holes, and assembly are completed in sequence. Grinding allowance is reserved; in the subsequent processing stage, rough milling, aging, fine milling and clamping are completed sequentially, the rough milling cavity is reserved for milling allowance, and the cavity of the fine milling spiral rib is determined. The invention has the advantages of simple technological process, good operability, shortened production cycle and improved product qualified rate.

Description

technical field [0001] The invention belongs to the field of mechanical cutting and processing, and in particular relates to a processing method for a metal spiral rib used in a non-metal directional pipe spiral groove forming die. Background technique [0002] In the prior art, the metal spiral rib processing method used for the non-metallic directional pipe spiral groove forming die has many defects, the production process is complicated, the machining process is simple, the process measures are lacking, the yield is low, and the operability is very poor. Poor; at the same time, the secondary clamping process reduces the machining accuracy, and the concentration of cutting stress causes machining deformation. Contents of the invention [0003] The purpose of this invention is to provide a kind of metal spiral rib processing method for the non-metallic directional pipe spiral groove forming die, which utilizes the existing process equipment to realize the form of turning,...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are many defects in the metal spiral rib processing method used for the non-metallic directional pipe spiral groove forming die, the production process is complicated, the machining process is simple, the process measures are lacking, the yield is low, and the operability is very poor. Poor; at the same time, the secondary clamping process reduces the machining accuracy, and the concentration of cutting stress causes machining deformation

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