Optical copy grinding machine

Abstract

To relate to an optical copy grinding machine capable of reducing cost necessary for grinding by improving work efficiency in the case of processing a workpiece having a front flank.SOLUTION: An optical copy grinding machine includes a workpiece holding mechanism that can hold a workpiece to be an object of grinding, a grindstone holding mechanism for holding grindstone that can grind the workpiece held by the workpiece holding mechanism, an acquisition part for acquiring front clearance angle information of the workpiece, and a control part for controlling the grindstone holding mechanism by using the front clearance angle information of the workpiece, the grindstone holding mechanism includes a first movement mechanism for moving the grindstone along a vertical direction, and a second movement mechanism for approaching or separating the grindstone to / from the workpiece holding mechanism, and the control part is configured to synchronously drive the first movement mechanism and the second movement mechanism so as to move the grindstone along the front flank.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an optical profile grinding machine. [Background technology]

[0002] Conventionally, optical copy grinding machines have been known that are equipped with a workpiece holding mechanism capable of holding a workpiece to be ground, and a grinding wheel holding mechanism that holds a grinding wheel capable of grinding the workpiece held by the workpiece holding mechanism (Patent Document 1, etc.).

[0003] In a conventional optical copy grinding machine, when machining a workpiece having a front clearance surface, as shown in FIG. 7, the front clearance block 101 of the grinding wheel holding mechanism 100 is rotated and the grinding wheel 200 is tilted along the front clearance surface of the workpiece W to perform the grinding process. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-254849 A Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, in the conventional optical copy grinding machine, when machining a workpiece W having a front clearance surface, the front clearance block 101 of the grinding wheel holding mechanism 100 needs to be rotated, which increases the number of worker steps, resulting in an increase in personnel costs and time costs.

[0006] One aspect of the present invention relates to an optical profile grinding machine that can improve the work efficiency when machining a workpiece having a front clearance and reduce the cost required for grinding. [Means for solving the problem]

[0007] An optical copy grinding machine according to one embodiment of the present invention includes a workpiece holding mechanism capable of holding a workpiece to be ground, a grinding wheel holding mechanism that holds a grinding wheel capable of grinding the workpiece held by the workpiece holding mechanism, an acquisition unit that acquires front clearance angle information of the workpiece, and a control unit that controls the grinding wheel holding mechanism using the front clearance angle information of the workpiece, wherein the grinding wheel holding mechanism includes a first moving mechanism that moves the grinding wheel in a vertical direction and a second moving mechanism that moves the grinding wheel closer to or away from the workpiece holding mechanism, and the control unit is configured to synchronously drive the first moving mechanism and the second moving mechanism so that the grinding wheel moves along the front clearance surface of the workpiece.

[0008] According to an optical copy grinding machine of an aspect of the present invention, the first moving mechanism and the second moving mechanism can be driven synchronously, so that the grinding wheel can be moved along the front clearance surface of the workpiece to perform grinding without providing a front clearance block in the grinding wheel holding mechanism. Therefore, it is possible to improve the work efficiency when machining a workpiece having a front clearance surface and reduce the cost required for grinding. Effect of the Invention

[0009] According to an optical profile grinding machine according to one aspect of the present invention, it is possible to improve the work efficiency when machining a workpiece having a front clearance face and reduce the cost required for grinding. [Brief description of the drawings]

[0010] [Figure 1] 1 is a front view showing a schematic diagram of an optical profile grinding machine according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a perspective view showing a schematic configuration of a grindstone holding mechanism according to the embodiment; [Diagram 3] FIG. 2 is a block diagram showing an operation control panel according to the embodiment. [Figure 4] FIG. 4 is a diagram showing an operation screen according to the embodiment. [Diagram 5] FIG. 13 is a diagram showing a state in which a workpiece having a front clearance is being machined. [Figure 6]FIG. 13 is a diagram showing an operation screen according to a modified example. [Figure 7] FIG. 1 is a diagram illustrating a conventional optical profile grinding machine. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. In addition, in the present embodiments, the scale and dimensions of each component may be exaggerated, and some components may be omitted.

[0012] [Overall configuration of optical profile grinding machine] FIG. 1 is a front view that shows a schematic diagram of an optical profile grinding machine according to the present embodiment.

[0013] 1, the optical copy grinding machine 1 according to this embodiment includes a workpiece holding mechanism 10 capable of holding a workpiece W to be ground, a grindstone holding mechanism 30 for holding a grindstone 20 capable of grinding the workpiece W held by the workpiece holding mechanism 10, a projector 40 capable of enlarging and displaying the workpiece W, and an operation control panel 50 capable of receiving input of front clearance angle information of the workpiece W and controlling the grindstone holding mechanism 30. Note that a variety of known configurations can be adopted for the projector 40, and therefore detailed description thereof will be omitted.

[0014] [Work holding mechanism configuration] As shown in FIG. 1, the work holding mechanism 10 includes a work table 11 on which a work W can be placed, a first table moving mechanism 12 that moves the work table 11 closer to or away from the grinding wheel holding mechanism 30, and a second table moving mechanism 13 that moves the work table 11 along a direction (X-axis direction in FIG. 1) perpendicular to both the movement direction of the work table 11 by the first table moving mechanism 12 (Y-axis direction in FIG. 1) and the up-down direction (Z-axis direction in FIG. 1).

[0015] The first table moving mechanism 12 is configured to be movable along the Y-axis direction, thereby enabling the work table 11 to move along the Y-axis direction. The second table moving mechanism 13 is configured to be movable along the X-axis direction, thereby enabling the work table 11 to move along the X-axis direction.

[0016] In addition, the first table moving mechanism 12 and the second table moving mechanism 13 may be configured to be movable by being controlled by an operation control panel 50, or may be configured to be movable by an operator operating an operating handle (not shown).

[0017] In this embodiment, the work table 11 is provided above the first table moving mechanism 12, and the first table moving mechanism 12 is provided above the second table moving mechanism 13. Note that since various known configurations can be adopted for the work table 11, the first table moving mechanism 12, and the second table moving mechanism 13, detailed explanations thereof will be omitted.

[0018] [Structure of the grindstone] 1, the grindstone 20 is formed in an annular, flat plate shape. The grindstone 20 is rotatably attached to a first moving mechanism 31 (described later) of the grindstone holding mechanism 30. Since various known configurations can be adopted for the grindstone 20, detailed description thereof will be omitted.

[0019] [Structure of the grindstone holding mechanism] FIG. 2 is a perspective view that shows a schematic diagram of the grindstone holding mechanism according to the present embodiment.

[0020] As shown in Figures 1 and 2, the grinding wheel holding mechanism 30 includes a first moving mechanism 31 that moves the grinding wheel 20 in the vertical direction (the Z-axis direction in Figures 1 and 2), a second moving mechanism 32 that moves the grinding wheel 20 closer to or away from the workpiece holding mechanism 10, and a third moving mechanism 33 that moves the grinding wheel 20 in a direction (the X-axis direction in Figures 1 and 2) perpendicular to both the vertical direction and the movement direction of the grinding wheel 20 by the second moving mechanism 32 (the Y-axis direction in Figures 1 and 2).

[0021] The first moving mechanism 31 is configured to hold the grindstone 20. The first moving mechanism 31 is also configured to be movable along the Z-axis direction, thereby allowing the grindstone 20 to move along the Z-axis direction. The second moving mechanism 32 is configured to be movable along the Y-axis direction, thereby allowing the grindstone 20 to move along the Y-axis direction. The third moving mechanism 33 is configured to be movable along the X-axis direction, thereby allowing the grindstone 20 to move along the X-axis direction.

[0022] The grindstone holding mechanism 30 also includes a turning mechanism 34 capable of turning the grindstone 20 in the horizontal direction (a direction perpendicular to the Z-axis direction), and a lateral relief block 35 capable of tilting the grindstone 20 in accordance with the lateral relief angle of the workpiece W. The turning mechanism 34 is configured to be rotatable in the A-axis direction about an axis (not shown) parallel to the Z-axis direction (see FIG. 2), thereby enabling the grindstone 20 to be turned in the horizontal direction. The lateral relief block 35 is configured to be rotatable in the B-axis direction about an axis (not shown) parallel to the Y-axis direction (see FIG. 2), thereby enabling the grindstone 20 to be tilted in accordance with the lateral relief angle of the workpiece W.

[0023] In this embodiment, the lateral escape block 35 is provided above the turning mechanism 34, the turning mechanism 34 is provided above the second moving mechanism 32, and the second moving mechanism 32 is provided above the third moving mechanism 33. In this embodiment, the first moving mechanism 31 is provided facing the surface of the lateral escape block 35 on the workpiece holding mechanism 10 side.

[0024] In addition, since various known configurations can be adopted for the first moving mechanism 31, the second moving mechanism 32, the third moving mechanism 33, the turning mechanism 34 and the lateral escape block 35, detailed explanations thereof will be omitted.

[0025] [Operation control panel configuration] FIG. 3 is a block diagram showing an operation control panel according to this embodiment.

[0026] As shown in Figures 1 and 3, the operation control panel 50 is equipped with an acquisition unit 51 that acquires front clearance angle information of the workpiece W, a control unit 52 that controls the grinding wheel holding mechanism 30 using the front clearance angle information of the workpiece W, an operation screen 53 that accepts input operations of the front clearance angle information of the workpiece W, and an input button 54 that can perform input operations on the operation screen 53.

[0027] In this specification, the "input operation of the front clearance angle information of the workpiece" includes both an operation in which the worker directly inputs the front clearance angle information of the workpiece W into the operation screen 53, and an operation in which the worker inputs the front clearance angle information of the workpiece W into the operation screen 53 via the input button 54.

[0028] The acquisition unit 51 is configured to acquire the front clearance angle information of the workpiece W via the operation screen 53. However, the configuration in which the acquisition unit 51 acquires the front clearance angle information of the workpiece W is not limited to this, and for example, the front clearance angle information of the workpiece W may be acquired via a machining program for automation, or the front clearance angle information of the workpiece W may be acquired by remote control for automation. In addition, the acquisition unit 51 is configured to acquire position information of the grindstone 20 from the grindstone holding mechanism 30, interpolation value information of the first moving mechanism 31, and turning angle information of the turning mechanism 34.

[0029] The control unit 52 is configured to synchronously drive the first moving mechanism 31 and the second moving mechanism 32 so that the grinding wheel 20 moves along the front clearance surface of the workpiece W. Specifically, the control unit 52 is configured to calculate an interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32 based on the front clearance angle information of the workpiece W acquired by the acquisition unit 51, and is configured to synchronously drive the first moving mechanism 31 and the second moving mechanism 32 using the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32.

[0030] More specifically, the control unit 52 is configured to calculate interpolation values ​​for the first moving mechanism 31 and the second moving mechanism 32 based on the interpolation value information of the first moving mechanism 31 acquired by the acquisition unit 51 and the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32, and is configured to drive the first moving mechanism 31 and the second moving mechanism 32 synchronously based on the interpolation values ​​of the first moving mechanism 31 and the second moving mechanism 32.

[0031] Here, the form of the front clearance surface of the workpiece W may be a flat surface, a curved surface, or a stepped surface made up of a plurality of surfaces. In this embodiment, when the front clearance surface of the workpiece W is flat, information on the front clearance angle of the workpiece is used during machining, but when the front clearance surface of the workpiece W is curved, information on the curvature of the front clearance surface of the workpiece W and the like are used during machining in addition to information on the front clearance angle of the workpiece. Also, when the front clearance surface of the workpiece W is stepped, information on the turn-back position of the front clearance surface of the workpiece W and the like are used during machining in addition to information on the front clearance angle of the workpiece.

[0032] That is, since only a fixed interpolation ratio can be calculated from information on the front clearance angle of the workpiece, the grinding wheel 20 can be moved along a planar front clearance surface, but cannot be moved along a curved or stepped front clearance surface. On the other hand, by using information on the curvature and turning position of the front clearance surface of the workpiece W in addition to information on the front clearance angle of the workpiece, an interpolation ratio corresponding to a curved or stepped front clearance surface can be calculated, and therefore the grinding wheel 20 can be moved along a curved or stepped front clearance surface.

[0033] Therefore, in this specification, "workpiece front clearance angle information" includes at least information on the front clearance angle of the workpiece, and if the front clearance surface of the workpiece W is curved or stepped, information on the shape of the front clearance surface of the workpiece W required to machine it (information on the curvature, turn-around position, etc. as described above) is included.

[0034] In addition, the control unit 52 is configured to synchronously drive the first moving mechanism 31, the second moving mechanism 32, and the third moving mechanism 33 so that the grinding wheel 20 moves along the front clearance surface of the workpiece W when the turning mechanism 34 turns the grinding wheel 20 in the horizontal direction. Specifically, the control unit 52 is configured to calculate an interpolation ratio of the first moving mechanism 31, the second moving mechanism 32, and the third moving mechanism 33 based on the front clearance angle information of the workpiece W and the turning angle information of the turning mechanism 34 acquired by the acquisition unit 51, and is configured to synchronously drive the first moving mechanism 31, the second moving mechanism 32, and the third moving mechanism 33 using the interpolation ratio of the first moving mechanism 31, the second moving mechanism 32, and the third moving mechanism 33.

[0035] More specifically, the control unit 52 is configured to calculate interpolation values ​​for the first moving mechanism 31, the second moving mechanism 32 and the third moving mechanism 33 based on the interpolation value information of the first moving mechanism 31 acquired by the acquisition unit 51 and the interpolation ratios of the first moving mechanism 31, the second moving mechanism 32 and the third moving mechanism 33, and is configured to synchronously drive the first moving mechanism 31, the second moving mechanism 32 and the third moving mechanism 33 based on the interpolation values ​​of the first moving mechanism 31, the second moving mechanism 32 and the third moving mechanism 33.

[0036] FIG. 4 is a diagram showing an operation screen according to this embodiment.

[0037] 4, the operation screen 53 is configured to display the front clearance angle of the workpiece W. The operation screen 53 is also configured to display the position information of the grinding wheel 20 acquired by the acquisition unit 51. Note that the information displayed by the operation screen 53 is not limited to this, and various kinds of arbitrary information, for example, information on the shape of the front clearance face of the workpiece W, etc. may be displayed.

[0038] [Grinding method for workpieces with front relief face] FIG. 5 is a diagram showing a state in which a workpiece having a front clearance face is being machined.

[0039] 4, first, the worker inputs the front clearance angle information of the workpiece W to the operation screen 53. When the front clearance angle information of the workpiece W is input to the operation screen 53, the acquisition unit 51 acquires the front clearance angle information of the workpiece W via the operation screen 53. In addition, the control unit 52 calculates the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32 based on the front clearance angle information of the workpiece W.

[0040] Next, the operator sets an interpolation value and a position of the first moving mechanism 31 manually or by an NC (Numerical Control) device (not shown). When the interpolation value of the first moving mechanism 31 is set, the acquisition unit 51 acquires the interpolation value information of the first moving mechanism 31 from the grindstone holding mechanism 30. In addition, the control unit 52 calculates the interpolation values ​​of the first moving mechanism 31 and the second moving mechanism 32 based on the interpolation value information of the first moving mechanism 31 and the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32.

[0041] After the above settings are completed, the operator performs dummy workpiece machining and sets the machining start position of the workpiece W. Thereafter, by pressing a machining start button (not shown) displayed on the operation screen 53 or a machining start button mounted on the operation control panel 50, the control unit 52 issues a command value to the first moving mechanism 31 and the second moving mechanism 32 to synchronize the first moving mechanism 31 and the second moving mechanism 32, and grinding of the workpiece W is started. In the optical copy grinding machine 1 according to this embodiment, the control unit 52 synchronously drives the first moving mechanism 31 and the second moving mechanism 32 based on the interpolation value of the first moving mechanism 31 and the second moving mechanism 32, so that the grinding wheel 20 can be moved along the front clearance surface of the workpiece W and grinding can be performed, as shown in FIG. 5. Since the dummy workpiece machining is a known process, detailed description thereof will be omitted.

[0042] [Advantages of the optical profile grinding machine according to this embodiment] Thus, the optical copy grinding machine 1 of this embodiment includes a workpiece holding mechanism 10 capable of holding the workpiece W to be ground, a grinding wheel holding mechanism 30 that holds a grinding wheel 20 capable of grinding the workpiece W held by the workpiece holding mechanism 10, an acquisition unit 51 that acquires front clearance angle information of the workpiece W, and a control unit 52 that controls the grinding wheel holding mechanism 30 using the front clearance angle information of the workpiece W, and the grinding wheel holding mechanism 30 includes a first moving mechanism 31 that moves the grinding wheel 20 in the vertical direction and a second moving mechanism 32 that moves the grinding wheel 20 closer to or away from the workpiece holding mechanism 10, and the control unit 52 is configured to synchronously drive the first moving mechanism 31 and the second moving mechanism 32 so that the grinding wheel 20 moves along the front clearance surface of the workpiece W.

[0043] According to the optical copy grinding machine 1 having such a configuration, the first moving mechanism 31 and the second moving mechanism 32 can be driven synchronously, so that the grinding wheel 20 can be moved along the front clearance surface of the workpiece W to perform grinding processing, even without providing a front clearance block in the grinding wheel holding mechanism 30. Therefore, there is an advantage that it is possible to improve the work efficiency when machining a workpiece having a front clearance surface and reduce the cost (personnel cost and time cost) required for grinding processing.

[0044] For example, when machining a workpiece W having a front clearance surface after machining a workpiece W having no front clearance surface, in a conventional optical copy grinding machine, the front clearance block 101 of the grindstone holding mechanism 100 is rotated, so that the machining start position of the workpiece W having no front clearance surface and the workpiece W having a front clearance surface are shifted. Therefore, before machining the workpiece W having a front clearance surface, it is necessary to set the interpolation value and position of the first moving mechanism 31 again and to machine a dummy workpiece, which causes a problem of reduced work efficiency.

[0045] In contrast, according to the optical copy grinding machine 1 of this embodiment, the grinding wheel 20 can be moved along the front clearance surface of the workpiece W by synchronously driving the first moving mechanism 31 and the second moving mechanism 32, so there is no deviation in the machining start position between a workpiece W that does not have a front clearance surface and a workpiece W that has a front clearance surface. Therefore, there is no need to set the interpolation value and position of the first moving mechanism 31 or to machine the dummy workpiece again, and work efficiency can be improved and automated.

[0046] In addition, according to the optical copy grinding machine 1 of this embodiment, grinding processing of a workpiece W having a front clearance surface can be performed without providing a front clearance block in the grinding wheel holding mechanism 30, which has the advantage that in addition to the costs required for the grinding processing described above (human costs and time costs), the manufacturing costs of the grinding wheel holding mechanism 30 itself can also be reduced.

[0047] In the optical profile grinding machine 1 according to this embodiment, the control unit 52 is configured to calculate the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32 based on the front clearance angle information of the workpiece W acquired by the acquisition unit 51, and the control unit 52 is configured to synchronously drive the first moving mechanism 31 and the second moving mechanism 32 using the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32. According to the optical profile grinding machine 1 having such a configuration, since the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32 is automatically calculated for each workpiece W, there is no need to set the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32 for each workpiece W, and there is an advantage that the work efficiency can be improved and automation can be achieved.

[0048] Furthermore, the optical profile grinding machine 1 according to this embodiment further includes an operation screen 53 that accepts an input operation of the front clearance angle information of the workpiece W, and the acquisition unit 51 is configured to acquire the front clearance angle information of the workpiece W via the operation screen 53. According to the optical profile grinding machine 1 having such a configuration, it is only necessary to input the front clearance angle information of the workpiece W into the operation screen 53, which has the advantage of improving the work efficiency.

[0049] In the optical copy grinding machine 1 according to this embodiment, the grindstone holding mechanism 30 further includes a third moving mechanism 33 that moves the grindstone 20 along a direction perpendicular to both the vertical direction and the moving direction of the grindstone 20 by the second moving mechanism 32, and the control unit 52 is configured to be able to synchronously drive the third moving mechanism 33 in addition to the first moving mechanism 31 and the second moving mechanism 32. According to the optical copy grinding machine 1 having such a configuration, the grindstone 20 can be moved along the front clearance surface of the workpiece W by three-axis interpolation, and when the grindstone 20 is rotating in the horizontal direction, the grindstone 20 can be moved along the front clearance surface of the workpiece W, which has the advantage of widening the width of processing.

[0050] [Variations] The optical profile grinding machine according to one aspect of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the technical spirit of the present invention.

[0051] FIG. 6 is a diagram showing an operation screen according to a modified example.

[0052] In the above-described embodiment, the acquisition unit 51 acquires the interpolation value information of the first moving mechanism 31 from the grindstone holding mechanism 30, and then the control unit 52 calculates the interpolation values ​​of the first moving mechanism 31 and the second moving mechanism 32 based on the interpolation value information of the first moving mechanism 31 and the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32, and drives the first moving mechanism 31 and the second moving mechanism 32 synchronously based on the calculated interpolation values ​​of the first moving mechanism 31 and the second moving mechanism 32, but this is not limited to the above.

[0053] 6, the operation screen 53 may be configured to receive input operations of the upper end point position information and the lower end point position information of the first moving mechanism 31, and the acquisition unit 51 may be configured to acquire the upper end point position information and the lower end point position information of the first moving mechanism 31 via the operation screen 53. The control unit 52 may be configured to calculate an interpolation value of the first moving mechanism 31 and the second moving mechanism 32 based on the front clearance angle information of the workpiece W acquired by the acquisition unit 51, the upper end point position information of the first moving mechanism 31, and the lower end point position information of the first moving mechanism 31, and may be configured to synchronously drive the first moving mechanism 31 and the second moving mechanism 32 based on the interpolation value of the first moving mechanism 31 and the second moving mechanism 32.

[0054] Specifically, the control unit 52 may be configured to calculate an interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32 based on the front clearance angle information of the workpiece W acquired by the acquisition unit 51, and to calculate an interpolation value of the first moving mechanism 31 and the second moving mechanism 32 based on the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32, the upper end point position information of the first moving mechanism 31, and the lower end point position information of the first moving mechanism 31.

[0055] With such a configuration, grinding of the workpiece W having a front clearance surface can be automatically performed simply by inputting the front clearance angle information of the workpiece W and the upper end point position information and lower end point position information of the first moving mechanism 31 into the operation screen 53, thereby providing the advantage of improving work efficiency.

[0056] In this specification, the "input operation of upper end position information and lower end position information of the first moving mechanism" includes both an operation in which the worker directly inputs the upper end position information and lower end position information of the first moving mechanism 31 into the operation screen 53, and an operation in which the worker inputs the upper end position information and lower end position information of the first moving mechanism 31 into the operation screen 53 via the input button 54.

[0057] Also, the operation screen 53 may be configured to receive input operations of front clearance angle information and thickness information of the workpiece W, and the acquisition unit 51 may be configured to acquire the front clearance angle information and thickness information of the workpiece W via the operation screen 53. Also, the control unit 52 may be configured to calculate an upper end point position and a lower end point position of the first moving mechanism 31 based on the thickness information of the workpiece W acquired by the acquisition unit 51, and to calculate an interpolation value of the first moving mechanism 31 and the second moving mechanism 32 based on the front clearance angle information of the workpiece W, the upper end point position information of the first moving mechanism 31, and the lower end point position information of the first moving mechanism 31, and to synchronously drive the first moving mechanism 31 and the second moving mechanism 32 based on the interpolation values ​​of the first moving mechanism 31 and the second moving mechanism 32.

[0058] Furthermore, in the above embodiment, the control unit 52 calculates the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32 and the interpolated value of the first moving mechanism 31 and the second moving mechanism 32. However, the present invention is not limited to this, and the acquisition unit 51 may acquire the interpolation ratio of the first moving mechanism 31 and the second moving mechanism 32. The acquisition unit 51 may also acquire the interpolated value of the first moving mechanism 31 and the second moving mechanism 32.

[0059] In addition, in the above-described embodiment, the acquisition unit 51 has been described as acquiring the front clearance angle information of the workpiece W via the operation screen 53, but this is not limited to this, and for example, the acquisition unit 51 may be configured to acquire the front clearance angle information of the workpiece W from a personal computer or the like.

[0060] It is apparent from the claims that the above-mentioned modifications are included within the scope of the present invention. [Explanation of symbols]

[0061] 1: Grinding machine 10: Work holding mechanism 11: Work table 12: First table moving mechanism 13: Second table moving mechanism 20: Grindstone 30: Grindstone holding mechanism 31: 1st movement mechanism 32:Second movement mechanism 33:Third movement mechanism 34: Swivel mechanism 35: Side escape block 40: Projector 50: Operation control panel 51: Acquisition section 52: Control section 53: Operation screen 54: Input button W: Work

Claims

1. a workpiece holding mechanism capable of holding a workpiece to be ground; a grindstone holding mechanism for holding a grindstone capable of grinding the workpiece held by the workpiece holding mechanism; An acquisition unit for acquiring front clearance angle information of the workpiece; a control unit that controls the grindstone holding mechanism using the front clearance angle information of the workpiece; Equipped with The grindstone holding mechanism includes: A first moving mechanism that moves the grindstone in a vertical direction; a second moving mechanism for moving the grindstone toward or away from the workpiece holding mechanism; Including, The control unit is configured to synchronously drive the first moving mechanism and the second moving mechanism so that the grinding wheel moves along the front clearance surface of the workpiece. Optical profile grinding machine.

2. The control unit is configured to calculate an interpolation ratio of the first moving mechanism and the second moving mechanism based on the front clearance angle information of the workpiece acquired by the acquisition unit, The control unit is configured to synchronously drive the first movement mechanism and the second movement mechanism by using an interpolation ratio between the first movement mechanism and the second movement mechanism.

2. The optical profile grinding machine according to claim 1.

3. Further comprising an operation screen for receiving an input operation of the front clearance angle information of the workpiece, The acquisition unit is configured to acquire front clearance angle information of the workpiece via the operation screen.

3. The optical profile grinding machine according to claim 1 or 2.

4. the operation screen is configured to receive an input operation of upper end point position information and lower end point position information of the first moving mechanism, the acquisition unit is configured to acquire upper end point position information and lower end point position information of the first moving mechanism via the operation screen, the control unit is configured to calculate an interpolation value of the first moving mechanism and the second moving mechanism based on the front clearance angle information of the workpiece acquired by the acquisition unit, the upper end point position information of the first moving mechanism, and the lower end point position information of the first moving mechanism, The control unit is configured to synchronously drive the first moving mechanism and the second moving mechanism based on an interpolation value of the first moving mechanism and the second moving mechanism.

4. The optical profile grinding machine according to claim 3.

5. The grindstone holding mechanism further includes a third moving mechanism that moves the grindstone along a direction perpendicular to both the vertical direction and the moving direction of the grindstone by the second moving mechanism, The control unit is configured to be capable of synchronously driving the third movement mechanism in addition to the first movement mechanism and the second movement mechanism.

3. The optical profile grinding machine according to claim 1 or 2.

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