Machining method of spiral groove

Abstract

The invention discloses a machining method of a spiral groove, and belongs to the field of mechanical machining. The machining method comprises the steps that the spiral groove is machined in the outer wall of a shaft part, the groove width of the spiral groove is equal to the edge width k of a cutter, the screw pitch of the spiral groove is P, and the groove depth of the spiral groove is r; widening machining is conducted on the spiral groove by m times, the groove width of the spiral groove is increased by J every widening machining until the groove width of the spiral groove reaches D, andthe groove depth is r; and deepening machining is conducted on the widened spiral groove by n times, the groove depth of the spiral groove is increased by r every deepening machining until the groovedepth of the spiral groove reaches H, and the groove width reaches D. Because machining is conducted by adopting a mode of multi-time repeated turning in the processes of m-time widening machining andn-time deepening machining, the engagement of the cutting edge of every cutting is low, the precision of the machined spiral groove is higher, machining is conducted conveniently through a digital controlled lathe, by changing the frequency numbers of repeating m and n, the groove width and the groove depth of the machined spiral groove can be changed, and operation is convenient.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a method for processing a spiral groove. Background technique [0002] Spiral grooves are usually provided on many bushing parts. [0003] At present, there are mainly two methods for processing spiral grooves. One is to process spiral grooves cyclically through the threading process that comes with the CNC lathe system. Another method is to use the G33 or G32 command in the G code for processing. [0004] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0005] Due to the few adjustable parameters of the system's own process, the adjustment is inconvenient, and the threading process that comes with the CNC lathe system can only process narrower spiral grooves. The processing with G33 or G32 command is only suitable for processing narrower spiral grooves. Both methods are not suitable f...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems in the prior art that manual modification of instructions is required after each processing, processing efficiency is low, and errors are prone to errors, the embodiment of the present invention provides a processing method for spiral grooves

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