Piston outer circle modeling method

A modeling method and piston technology, applied in electrical program control, digital control, etc., can solve the problem that the precision and finish of the piston cannot meet the requirements of use, and achieve the effect of improving the accuracy and smoothness, high accuracy of modeling and good continuity of response.

Active Publication Date: 2013-05-08
湖南江滨机器(集团)有限责任公司
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Problems solved by technology

In the actual processing process, since the tool feeds in a helical direction, its actual height on a section is h n with h n+1 Incrementally, when the t value is required to be relatively large, if you continue to process according to this model, the precision and smoothness of the processed piston will not meet the requirements for use

Method used

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Embodiment Construction

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0077] The invention discloses a method for modeling the outer circle of a piston, so as to reduce and improve the processing precision and smoothness of the piston.

[0078] The piston outer circle modeling method adopts spiral point modeling, such as Image 6 As shown, a three-dimensional space mathematical model is established on the outer circular surface of the piston, that is, the points are taken in a spiral shape first, and then the data points are pro...

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Abstract

The invention embodiment discloses a piston outer circle modeling method which adopts spiral to get points and model. The modeling method is coincident with a processing route. Modeling process fits in with thinking habit of people. The piston outer circle modeling method has the advantages of being high in modeling accuracy due to the fact that ovality is in linear change on a whole helical line, good in response continuity of a linear motor of a machine tool in the process of machining, and capable of improving accuracy and degree of finish of a piston.

Description

technical field [0001] The invention belongs to the field of pistons, in particular to a method for modeling the outer circle of a piston. Background technique [0002] With the advancement of science and technology, the research and application fields of piston CNC turning technology have achieved rapid development, and various forms of CNC piston lathes have emerged. However, due to the increasingly complex design of the piston and the higher and higher requirements for the processing accuracy, smoothness and processing efficiency of the special-shaped outer circle, new challenges are constantly posed to the manufacturing technology of the piston. [0003] The shape of the outer circle of the piston is complex and diverse. In the cross-sectional direction, there are primary ellipse, secondary ellipse, eccentric ellipse, asymmetrical ellipse, plum-blossom ellipse, other types of ellipse, etc.; figure 1 Shown is a convex drum-shaped primary oval piston skirt, the cross-sect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18
Inventor 刘明晖刘鹏展杨志勇王奕澍曾飞
Owner 湖南江滨机器(集团)有限责任公司
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