Numerical control machining square algorithm with high precision

A turning and algorithm technology, applied in the field of high-precision CNC turning algorithms, can solve the problems of large radius size of the cutter head, low machining accuracy, and large cutter head, so as to improve the machining accuracy and meet the requirements of the turning machine.

Active Publication Date: 2019-03-29
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0003] However, there are the following three problems in this kind of traditional lathe method: ① It is impossible to realize the machining of odd-numbered workpieces
Installing m cutters symmetrically on the cutter head can realize the processing of 2m square parts, but it cannot realize the processing of odd-numbered workpieces such as 1 square, 3 squares, etc.
② The radius of the cutter head is larger
Therefore, in order to ensure a certain machining accuracy, the cutter head of this type of machine tool is generally made relatively large, so that the turning function cannot be realized on a small machine tool.
③Machining accuracy is not high
Therefore, this kind of processing method can only be used for some applications that do not require high precision.

Method used

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  • Numerical control machining square algorithm with high precision
  • Numerical control machining square algorithm with high precision
  • Numerical control machining square algorithm with high precision

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0040] like figure 1 As shown, assuming that the workpiece is a regular n-gon, and the side length is a, when the car is square, the workpiece revolves around its center O 1 Rotate, the tool is fixed on the cutter head, and the cutter head revolves around the fixed point O 2 Rotate, its radius of gyration is R, both of them turn the same, and their rotation angles are Two rotation centers O 1 o 2 The center-to-center distance is d. Fixed coordinate system xO 1 y (denoted as the coordinate system A) is fixed on the machine bed, and the motion coordinate system x 1 o 1 the y 1 (Denoted as coordinate system B) is fixedly connected to the workpiece and rotates with the rotation of the work...

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Abstract

The invention discloses a numerical control machining square algorithm with high precision. The algorithm comprises the following steps of: calculating a machining track of a cutter cutting point on aworkpiece, setting the ideal machining track of the workpiece, and calculating a interpolation coordinate on the ideal track. The algorithm only needs to guarantee that the turning radius of the cutter is greater than 1/7 of the side length of the machining square, the size of a cutterhead is basically not required, so that the requirement of the machining square of the small-size machine tool can be well met. The calculation of the interpolation coordinates on the ideal track is achieved, and the machining precision is improved by calculating a interpolation coordinate on the ideal track.

Description

technical field [0001] The invention belongs to the technical field of numerical control machining, and in particular relates to a high-precision numerical control turning algorithm. Background technique [0002] When processing the symmetrical facet on the rotary workpiece, the traditional milling process requires multiple clamping and indexing, and the production efficiency is not high. The turning machine tool uses the tool and the workpiece to rotate in the same direction at a constant speed ratio of 2:1 to realize approximate plane machining on the rotary workpiece, eliminating the need for secondary clamping and greatly improving the processing efficiency. [0003] However, there are the following three problems in this kind of traditional lathe method: ① It is impossible to realize the machining of odd-numbered workpieces. Since the tool and the workpiece rotate at a constant speed ratio of 2:1, when the workpiece rotates once, the tool rotates twice, so that one too...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/19
CPCG05B19/19G05B2219/35349
Inventor 章永年王兴盛汪小旵卢伟康敏
Owner NANJING AGRICULTURAL UNIVERSITY
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