Method and apparatus for processing a workpiece

Abstract

To provide a machining method capable of manufacturing a high-quality workpiece by accurately detecting angle deviation with respect to a center position and the movement line of a machining tool when the workpiece is placed on a work bench.SOLUTION: The machining method comprises: a step of placing a workpiece 1; a step of loading an imaging device 21 on a machining unit 11; a step of measuring loading deviation between the machining unit 11 and the imaging device 21 through imaging of an absolute reference point P0 by the imaging device 21; a step of moving the machining unit 11 to image the reference point P1, P2 of the workpiece 1 by the imaging device 21; a step of determining the position of the workpiece 1 on a mounting table 13 with consideration given to the imaged absolute reference point P0 and the loading deviation; a step of removing the imaging device 21 to load the machining tool on the machining unit 11; and a step of machining the workpiece 1 by the machining tool.SELECTED DRAWING: Figure 1

Claims

1. A method for processing a workpiece, The process of placing the workpiece, The process involves attaching an imaging device to the processing unit, The process involves measuring the mounting misalignment between the processing unit and the imaging device by having the imaging device capture an absolute reference point, The process involves moving the processing unit to capture an image of the reference point of the workpiece using the imaging device, The absolute reference point is imaged at the initial position of the processing unit, and the mounting misalignment is calculated based on the difference between the theoretical position of the processing unit and the position of the absolute reference point imaged by the imaging device. The process involves correcting the coordinates of the reference point of the imaged workpiece based on the mounting misalignment, and determining the position of the workpiece on the mounting table based on the corrected coordinates. The process of processing the workpiece with a processing tool mounted on the processing unit, A processing method having [a certain characteristic].

2. The processing unit has a spindle, The step of attaching the imaging device to the processing unit is to attach the imaging device to the spindle and to fix the imaging device by a fixing part provided on the non-rotatable part of the spindle. The processing method according to feature 1.

3. The aforementioned absolute reference point is located adjacent to the aforementioned mounting base and is pre-installed on a reference base that is at the same height as the aforementioned mounting base. The processing method according to claim 1 or 2.

4. Between the reference base on which the absolute reference point is set and the aforementioned mounting base, a guard is provided to prevent the aforementioned mounting base from colliding with the reference base. The processing method according to feature 3.

5. There are two or more reference points provided on the workpiece. In the step of determining the position of the workpiece, the rotational displacement of the workpiece is also determined. The processing method according to claim 1 or 2.

6. The processing method according to claim 1 or 2, characterized in that the process of processing the workpiece is outer circumference processing and hole drilling.

7. The machining method according to claim 1 or 2, characterized in that, in the step of machining the workpiece, the machining position is determined and machining is performed taking into consideration the mounting misalignment with respect to the absolute reference point and the positional misalignment of the workpiece on the stand described above.

8. The process for processing the workpiece is characterized in that the workpiece is in the shape of a plate. The processing method described in 1 or 2.

9. The machining method according to claim 1 or 2, characterized in that, before machining the workpiece with the machining tool, the imaging device is removed and the machining tool is attached to the machining unit.

10. The machining method according to claim 9, characterized in that the machining tool is removed from the machining unit and the imaging device is reattached.

11. A processing device for processing a workpiece, A mounting base for holding the workpiece, A processing unit for processing the workpiece held on the aforementioned mounting table, It includes a control unit, The control unit is The image captured by the imaging device attached to the processing unit is read, The reference point of the workpiece displayed in the captured image is read, Multiple reference points are provided, The coordinate information of the aforementioned reference point, The midpoint of the line connecting the aforementioned multiple reference points, The angle between the aforementioned straight line and the reference line on the base described above, It has a memory unit that stores, A processing device that processes the workpiece based on the information of the midpoint and the angle.

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