Tool path preparing method and machining method

a tool path and machining technology, applied in the direction of total factory control, programme control, electric programme control, etc., can solve the problems of scars (cutter marks) generated on the workpiece, the cutting of which includes the shape perpendicular to or approximately and the inability to cut the part perpendicular to the main spindl
US20020025758A1Inactive Publication Date: 2002-02-28STAR MICRONICS
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
STAR MICRONICS
Publication Date
2002-02-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The movement position of the roughing tool is calculated, in S109, by adding the finishing allowance to the movement position of the finishing tool so that the path of the roughing tool is shifted in the direction perpendicular to the rotation center axis of the main spindle rotation motor from the path of the finishing tool by the finishing allowance. Then, a gap between the movement position of the roughing tool in the direction of the rotation center axis of the main spindle rotation motor and the workpiece W is calculated, and when the gap is not larger than a predetermined value G, in S113, the movement position of the roughing tool is corrected in the direction perpendicular to the rotation center axis of the main spindle rotation motor so that the roughing tool does not cut in the inside of the finishing portion of the workpiece. The movement position of the roughing tool is corrected so that the movement speed of the roughing tool in the direction perpendicular to the rotation center axis of the main spindle rotation motor is a predetermined value.
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Description

[0001] 1. Field of the Invention

[0002] The present invention relates to a tool path preparing method for preparing a tool path to simultaneously conduct a roughing and finishing operations, and to a machining method employing the tool path preparing method.

[0003] 2. Description of the Related Art JP-A-63-200943 discloses a tool path preparing method and a machining method employing the tool path preparing method, for example. According to JP-A-63-200943, controlling a position of a finishing tool automatically controls another tool to operate simultaneously at a rough-cut position having a smaller depth of cut by an arbitrarily given finishing allowance. In other words, only the position of the tip of the finishing tool is programmed, and the roughing tool is automatically controlled at a rough cut position leaving only the finishing allowance.

[0004] However, there are the following problems in the tool path preparing method and machining method as disclosed in JP-A-63-200943.

[0005] ...

Claims

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