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A Machining Method of Asymmetric Structure/Nonlinear Variation Helical Groove

A non-linear change, asymmetric structure technology, used in metal processing equipment, tangent machines, manufacturing tools, etc., can solve the problem that the spiral groove cannot achieve asymmetric structure / non-linear change spiral groove spiral sleeve cutting and other problems

Active Publication Date: 2020-03-24
HEBEI HENGSHENG PUMPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the processing method of the spiral groove in the prior art cannot realize the cutting process of the asymmetric structure / non-linearly changing spiral groove helical sleeve, the present invention provides a processing method for the asymmetric structure / non-linearly changing spiral groove

Method used

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  • A Machining Method of Asymmetric Structure/Nonlinear Variation Helical Groove
  • A Machining Method of Asymmetric Structure/Nonlinear Variation Helical Groove

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 Processing of single-head cast iron material spiral sleeve

[0026] (1.1) After positioning the starting point of the spiral sleeve, according to the given feed rate and cutting depth, complete the cutting of the spiral groove on the outer wall of the spiral sleeve, after processing the length stroke of the spiral sleeve plus the retraction length , the turning tool returns to the designated origin position;

[0027] (1.2) Adjust the turning tool to the starting point of cutting, and the coordinate of this position is X 0 ,Z 0 , adjust the radial compensation d along the mating surface of the spiral sleeve X and axial compensation d Z Carry out follow-up cutting processing, after N cycles of cutting processing to complete the flange surface molding line processing on the end face of the spiral sleeve, the coordinate position of the starting tangent point of the m-th processing and the number of turning cycles required for processing the flange surface mo...

Embodiment 2

[0034] The processing of embodiment 2 single head carbon steel or stainless steel spiral sleeve

[0035] (1.1) After positioning the starting point of the spiral sleeve, according to the given feed rate and cutting depth, complete the cutting of the spiral groove on the outer wall of the spiral sleeve, after processing the length stroke of the spiral sleeve plus the retraction length , the turning tool returns to the designated origin position;

[0036] (1.2) Adjust the turning tool to the starting point of cutting, and the coordinate of this position is X 0 ,Z 0 , adjust the radial compensation d along the mating surface of the spiral sleeve X and axial compensation d Z Carry out follow-up cutting processing, after N cycles of cutting processing to complete the flange surface molding line processing on the end face of the spiral sleeve, the coordinate position of the starting tangent point of the m-th processing and the number of turning cycles required for processing the ...

Embodiment 3

[0043] Embodiment 3 Processing of double-ended cast iron material spiral sleeve

[0044] (1.1) After positioning the starting point of the helical sleeve, according to the given feed rate and cutting depth, complete a spiral groove cutting process on the outer wall of the helical sleeve, after processing the length stroke of the helical sleeve plus the retraction length , the turning tool returns to the designated origin position;

[0045] (1.2) Adjust the turning tool to the starting point of cutting, and the coordinate of this position is X 0 ,Z 0 , adjust the radial compensation d along the mating surface of the spiral sleeve X and axial compensation d Z Carry out follow-up cutting processing, after N cycles of cutting processing to complete the processing of the flange surface profile line on one side of the end face of the spiral sleeve, the coordinate position of the starting tangent point of the m-th processing and the number of turning cycles required for processing...

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Abstract

The invention belongs to the field of machining methods of spiral sleeves and discloses a machining method for an asymmetric structure / nonlinear variation spiral groove. The machining method comprisesthe steps that rough machining is conducted, the radial compensation quantity dX and the axial compensation quantity dZ are adjusted along a spiral sleeve matched curved face, and subsequent fine cutting machining and the like are conducted. Through the machining method, the asymmetric structure / nonlinear variation spiral groove can be machined, and the flange molded line and characteristic curveof the asymmetric structure / nonlinear variation spiral groove can be machined in a highly matched mode.

Description

technical field [0001] The invention relates to a processing method of a spiral sleeve, in particular to a processing method of an asymmetric structure / non-linearly changing spiral groove. Background technique [0002] The core component of the twin-screw pump is the helical sleeve; the helical sleeve ensures its transmission and efficient work due to the special shape of the transmission when it is delivered, but the structure of the spiral groove is complex, and the processing accuracy and matching accuracy are high. During the working process, the pressure and displacement are different. According to the requirements of actual working conditions, the spiral sleeve will have different materials, different diameters, different lengths, combinations of different leads, and various specifications and types. [0003] The processing object of the spiral sleeve processing method in the prior art is generally a spiral sleeve with a linear change and a symmetrical structure, but t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B5/48B23G1/04
CPCB23B5/48B23G1/04
Inventor 余义全王晓辉
Owner HEBEI HENGSHENG PUMPS