Super-precision grinding processing method of non-circular surface
A processing method and ultra-finishing technology, which is applied in the field of ultra-finishing processing of non-circular surfaces, can solve the problems of grinding wheel grinding accuracy limitation, machining accuracy is difficult to meet ultra-high-precision machining, etc., to meet ultra-high-precision machining, machining The effect of convenient process adjustment
Inactive Publication Date: 2011-04-20
浙江陀曼智能科技股份有限公司
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Problems solved by technology
This processing method can change the corresponding point program according to the shape of the part. The processing technology is easy to adjust, the processing accuracy is good, the degree of automation is high, and the processing can be flexibly integrated. However, due to the limited grinding accuracy of the grinding wheel, the processing accuracy is difficult to meet the super Requirements for high precision machining
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[0008] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0009] Such as figure 1 , figure 2 Shown is a part with a non-circular inner hole surface, the part contour 3 is a non-circular curve, the generatrix 5 is parallel to the center line 4, the part is used as the workpiece 1 to be processed, the workpiece 1 is installed on the workpiece spindle, and the workpiece spindle rotates The feed motion of the directional axis (C axis) and the directional motion axis (X axis) perpendicular to the center line of the workpiece, the feed motion of the workpiece spindle is converted into the interpolation feed of the workpiece, and the interpolation feed is controlled by the C axis and the X axis. The shaft is formed in polar coordinates; the tool adopts the oil stone 2, which performs small oscillation and large reciprocating linear motion along the direction of the workpiece generatrix 4, and the oil ston...
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The invention relates to a super-precision grinding processing method of a non-circular surface, belonging to the technical field of the super-precision grinding processing of complex mechanical part surfaces. Since the grinding precision of a traditional numerical control interpolation processing mode used for grinding a grinding wheel is limited and the requirements for the super-precision processing are difficult to meet, the invention adopts an oil stone super-precision grinding processing method and is characterized in that a workpiece is arranged on a workpiece main shaft, the workpiece main shaft can do a feed movement along with the rotation direction axis (C axis) and the direction movement axis (X axis) which is perpendicular to the centre line of the workpiece, the feed movement of the workpiece main shaft is converted into an interpolation feed of the workpiece, and then the interpolation feed is formed in a polar coordinate composed of the C axis and the X axis. The super-precision grinding processing method is characterized in that the oil stone is used as a cutter, can do linear movement in a small-oscillation and large-reciprocating mode along with the axial direction of the workpiece, and is used for carrying out super-precision grinding on the processing surface of the workpiece. Therefore, the invention has high processing precision and can meet the requirements for the super-precision processing.
Description
technical field [0001] The invention belongs to the technical field of superfinishing processing on the surface of complex mechanical parts, and in particular relates to a superfinishing processing method for non-circular curved surfaces. Background technique [0002] A non-circular surface part is a part whose outline is a non-circular curve and whose generatrix is parallel to the center line (axis). At present, most of the non-circular surface processing methods of non-circular surface parts adopt the CNC interpolation grinding method. Interpolation processing is to calculate the coordinate values of several intermediate points between the starting point and the end point of the curve according to the feed speed. The intermediate points divide the curve into several equal parts, and use a small straight line or arc to fit each equal part of the curve. The center trajectory travels according to the coordinate value of the middle point; the CNC interpolation grinding me...
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IPC IPC(8): B24B35/00
Inventor 俞朝杰
Owner 浙江陀曼智能科技股份有限公司