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Grinding method of numerical control coordinate of cam

A grinding and cam technology, applied in the field of CNC coordinate grinding of cams, can solve the problems of poor curve smoothness and precision, high labor intensity and high processing cost, achieve good size and shape accuracy, improve production efficiency, The effect of stable product quality

Inactive Publication Date: 2013-05-22
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Problems solved by technology

[0002] In the process of mechanical manufacturing, cam parts are often encountered. It is a curved profile on the cylindrical end surface. When it rotates, it can make the push rod move in a plane parallel to its axis. Since the motion of the cam and the push rod are not in the same In the plane, the end surface curve is a space curve. The projection of the space curve of this cam on the X and Y planes is an irregular curve. For a long time, the curve on the cam mainly relies on manual file repair. , long cycle, low efficiency, high processing cost, and poor curve smoothness and precision

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  • Grinding method of numerical control coordinate of cam

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Embodiment Construction

[0017] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.

[0018] A numerically controlled coordinate grinding method for a cam, comprising the following steps:

[0019] (1) Project the cam space curve to plane coordinates: Simplify the space profile curve of the cam into a plane curve, calculate the data of the plane coordinate system, obtain the plane coordinates (X, Y) of the cam processing point, and record the cam angle θ Relationship with displacement S;

[0020] like figure 1 , clamp the cam 2 on the three-jaw disc 3 of the CNC turntable 1 of the CNC coordinate mill, and use the three-dimensional adjustable high-precision top tailstock top 4 at the other end. When adjusting the starting point, move X, Y, Z, A coordinates, move the grinding head 5 to the initial point, complete the cam track movement through the rotation of the CNC turn...

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Abstract

The invention discloses a grinding method of a numerical control coordinate of a cam. The grinding method of the numerical control coordinate of the cam comprises the following steps: projecting a space curve of the cam on a horizontal coordinate, defining a new XA machine coordinate system, building the relationship of a Y-coordinate and an A-coordinate, confirming a new processing point coordinate (S, theta), and utilizing the linkage of an X-axis and an A-axis of the new XA machine coordinate system to achieve the processing of the space curved face of the cam. The grinding method of the numerical control coordinate of the cam has the advantages of using a double-axis semi-numerical control machine tool to project the space curve on the horizontal coordinate, finding out the relationship between a Y-coordinate value and an A-coordinate value, utilizing the method that the linkage of the X-axis and the A-axis achieves the processing of an end face space curved face, acquiring a good size and shape precision, improving producing efficiency and reducing labor intensity and producing cost, the quality of part products is stable, sizes and shapes meet the design requirements of products, and the grinding method of the numerical control coordinate of the cam can be widely applied to the processing of faces of part series.

Description

technical field [0001] The invention relates to a numerical control coordinate grinding processing method of a cam, which belongs to the technical field of mechanical processing. Background technique [0002] In the process of mechanical manufacturing, cam parts are often encountered. It is a curved profile on the cylindrical end surface. When it rotates, it can make the push rod move in a plane parallel to its axis. Since the motion of the cam and the push rod are not in the same In the plane, so the end surface curve is a space curve. The projection of the space curve of this cam on the X and Y planes is an irregular curve. For a long time, the curve on the cam mainly relies on manual file repair. , long cycle, low efficiency, high processing cost, and poor curve smoothness and precision. Contents of the invention [0003] The object of the present invention is to provide a numerical control coordinate grinding processing method of a cam, which can realize complex spati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/12
Inventor 王勇宋保国
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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