Removal processing display device

Abstract

To provide a removal processing display device that can grasp a relation between a removal tool and a visual field of an imaging part and improve workability of operation of the removal tool.SOLUTION: A display control part 25 of a profile grinding device 10 performs display control of a display range frame in a sub display region 13b. The display range frame corresponds to a visual field of an imaging part. The display control part 25 performs display control of a grindstone contour based on grindstone contour data by synchronization with movement of a grindstone 35 on the basis of detection of a position of the grindstone 35 by a position detection part 28.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a removal processing indicating device. [Background technology]

[0002] Conventionally, in grinding processes using a profile grinding machine, a series of operations related to the grinding process are programmed in advance based on numerical information such as the position and speed of the relative movement between the workpiece and the grinding wheel. Then, the profile grinding machine executes grinding processes on the workpiece according to commands from this program (see Patent Document 1).

[0003] In such a profile grinding machine, the image captured by the imaging unit is displayed on a display, and the operator performs machining and teaching of the dummy workpiece while looking at the workpiece and grinding wheel displayed on the display. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-105119 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when a grinding wheel that is outside the field of view (imaging range) of the imaging unit is moved into the field of view (imaging range) of the imaging unit in the pre-grinding process, the position of the grinding wheel cannot be confirmed on a display that does not show an image of the grinding wheel. Also, because the imaging unit is covered, it is difficult to grasp the positional relationship between the imaging unit and the grinding wheel from the outside.

[0006] Since grinding wheels are prone to damage, especially when they come into contact with other objects, workers must carefully move the grinding wheel little by little while visually checking to ensure that it does not hit the workpiece or any jigs placed around it. For this reason, there is a problem that workability deteriorates when moving the grinding wheel from outside the field of view of the imaging unit to within its field of view.

[0007] An object of the present invention is to provide a removal processing display device that can grasp the relationship between the removal tool and the field of view of the imaging unit and improve the workability of operating the removal tool. [Means for solving the problem]

[0008] In order to solve the above problems, the removal processing display device of the present invention is a removal processing display device that includes a display having a main display area and a sub-display area, a manual operation unit for manually operating the movement of the removal tool, a position detection unit for detecting the position of the removal tool, an imaging unit for imaging the workpiece and the removal tool, a display control unit for controlling the display of at least the images acquired by the imaging unit in the main display area, and a memory unit for storing removal tool contour data of the removal tool, wherein the display control unit controls the display of a display range frame representing the main display area in the sub-display area, and controls the display of the removal tool contour based on the removal tool contour data in synchronization with the movement of the removal tool based on the detection of the position of the removal tool by the position detection unit.

[0009] With the above configuration, the display control unit displays the display range frame in the sub-display area of ​​the display. The display control unit controls the display of the removal tool contour based on the removal tool contour data in synchronization with the movement of the removal tool in accordance with the detection of the position of the removal tool by the position detection unit.

[0010] In this case, if the removal tool is located outside the imaging range, the removal tool contour is displayed as being located outside the display range frame, whereas if the removal tool is located within the imaging range, the removal tool contour is displayed as being located inside the display range frame.

[0011] The storage unit also stores workpiece contour data of the workpiece. The display control unit displays a workpiece contour (Bb) based on the workpiece contour data in the sub-display area. According to the above configuration, the workpiece contour is displayed in the sub-display area. This allows the operator to know the positional relationship between the workpiece contour and the removal tool contour. In other words, since the removal tool contour is displayed and moves in synchronization with the removal tool, the operator can easily know the positional relationship between the removal tool and the workpiece contour by looking at the sub-display area.

[0012] The sub-display area is located inside or outside the main display area. The display control unit also includes a configuration that, when the monitor magnification of the main display area is increased, makes the size of the display range frame smaller than the size of the display range frame before the monitor magnification of the main display area was increased.

[0013] With the above configuration, when the monitor magnification of the main display area increases, the subject is displayed larger in the main display area. In this case, the display control unit reduces the display range frame of the sub-display area to a size smaller than the size before the monitor magnification of the main display area was increased.

[0014] As a result, the monitor magnification of the main display area increases, and the removed tool image displayed in the main display area may no longer be displayed. In this case, the display range frame of the sub-display area becomes smaller than it was before the monitor magnification of the main display area increased.

[0015] The worker can confirm the position of the removal tool, which can no longer be seen in the main display area, by seeing the reduced display range frame of the sub-display area. [Effects of the Invention]

[0016] According to the present invention, it is possible to grasp the relationship between the removal tool and the field of view of the imaging unit, and it is possible to improve the workability of operating the removal tool. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic view of an overall profile grinding device. [Figure 2] 10 is a flowchart of a sub-display program. [Figure 3] FIG. 2 is an explanatory diagram of a main display area in a main display area. [Figure 4] FIG. 2 is an explanatory diagram of a main display area and a sub-display area. [Figure 5] FIG. 10 is an explanatory diagram of a sub-display area. [Figure 6] 10A and 10B are explanatory diagrams of the main display area and the sub-display area when the monitor magnification of the main display area is increased. [Figure 7] 10 is an explanatory diagram of a sub-display area when the monitor magnification of the main display area is increased. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] (Embodiment) Hereinafter, an embodiment in which the removal processing display device of the present invention is embodied in a profile grinding device 10 will be described with reference to FIGS.

[0019] (1. Schematic Configuration of Profile Grinding Device 10) As shown in FIG. 1, the profile grinding device 10 includes a control device 11, a display 12, an input device, and a grinding unit 30.

[0020] (2. Input Device) The input devices include a console 14, a mouse 16, an X-axis operation device 17, a Y-axis operation device 18, and the like.

[0021] The console 14 includes a keyboard for inputting numerical values, characters, etc. to the CPU 22. The mouse 16 is capable of operating to move a mouse pointer (not shown) on the screen 13 shown in FIG.

[0022] The X-axis operation device 17 includes a manual handle 17a and an encoder 17b. When the manual handle 17a is operated, the encoder 17b outputs an operation signal to the CPU 22 of the control device 11 in accordance with the operation.

[0023] The CPU 22 drives and controls an X-axis motor 37, which will be described later, based on the operation signal to move the grinding wheel 35 in the X direction of the machine coordinate system. The machine coordinate system is the machine coordinate system of the profile grinding device 10.

[0024] The Y-axis operation device 18 includes a manual handle 18a and an encoder 18b. When the manual handle 18a is operated, the encoder 18b outputs an operation signal to the CPU 22 of the control device 11 in accordance with the operation.

[0025] When the manual handle 18a is operated, the encoder 18b outputs an operation signal corresponding to the operation to the CPU 22. The X-axis operation device 17 and the Y-axis operation device 18 correspond to a manual operation unit.

[0026] The CPU 22 controls the driving of a Y-axis motor 38, which will be described later, based on the operation signal, thereby moving the grindstone 35 in the Y direction of the machine coordinate system. (3. Grinding section 30) As shown in FIG. 1, the grinding unit 30 includes a grinding mechanism 31, a workpiece holding mechanism 32, a moving mechanism 33, and an imaging unit 39.

[0027] The grinding mechanism 31 is equipped with a disk-shaped grinding wheel 35 and performs grinding on the workpiece W held by the workpiece holding mechanism 32. The grinding mechanism 31 rotates the grinding wheel 35 during grinding. The workpiece holding mechanism 32 holds the workpiece W in a detachable manner.

[0028] The grinding mechanism 31 is provided in a movement mechanism 33, and moves the grindstone 35 relative to the workpiece W. The movement mechanism 33 is equipped with an X-axis motor 37, a Y-axis motor 38, and a Z-axis motor 36. The rotation of the X-axis motor 37 and the Y-axis motor 38 is controlled by the CPU 22. This allows the grindstone 35 to move in the X and Y directions by the movement mechanism 33. Furthermore, the grindstone 35 can be oscillated up and down (in the Z direction) within a predetermined range by driving the Z-axis motor 36.

[0029] The imaging unit 39 is disposed above the grindstone 35 and the workpiece W held by the workpiece holding mechanism 32. The imaging unit 39 is configured by a CMOS camera or a CCD camera.

[0030] The imaging unit 39 is surrounded by a cover 39a, the lower end of which is open. (Image capture range) The imaging unit 39 is capable of capturing images of the grinding wheel 35 and the workpiece W within its field of view. The field of view may also be referred to as the imaging range.

[0031] The imaging range is a range in which the approach of the grinding wheel 35 to the workpiece W and the cutting process can be imaged when the workpiece W is set at a position where it is ready for cutting. The waiting position and the surrounding area are not included in the imaging range.

[0032] The imaging unit 39 transmits actual images of the grindstone 35 and workpiece W within the imaging range to the display control unit 25. The entire imaging range is displayed by the display control unit 25 in the main display area 13a.

[0033] An illumination device 34 is disposed below the workpiece W. The illumination device 34 irradiates illumination light from below the workpiece W toward the imaging unit 39. (4. Display 12) The display 12 is a touch panel display and includes a main display area 13a. The display 12 is a liquid crystal display, an organic EL display, a CRT, or the like, and is capable of displaying in color. The display 12 is a touch panel display. The display 12 has a main display area 13a.

[0034] As shown in FIG. 1, when the CPU 22 executes the sub-display program stored in the storage unit 24, the CPU 22 forms the sub-display area 13b within the main display area 13a. The main display area 13a is an area that mainly displays images captured within the imaging range of the imaging unit 39. The display range of the sub-display area 13b is a wide range that includes the imaging range of the imaging unit 39 and the periphery of the imaging range, and is an area that displays the contour of a removed tool, etc. Details of the display objects of the main display area 13a and the sub-display area 13b will be described later.

[0035] (About the operation buttons) 3, the main display area 13a is provided with a sub-display button 13c, a zoom button 13d, a + button 13e, and a - button 13f. The sub-display button 13c, the zoom button 13d, the + button 13e, and the - button 13f are turned on by a touch operation or a mouse pointer operation. The zoom button 13d is turned off when it is turned on again.

[0036] 3, when the sub-display button 13c is turned on, the display control unit 25 (CPU 22) starts a sub-display program. As a result, the display control unit 25 displays the sub-display area 13b on the lower left side of the main display area 13a, as shown in FIG.

[0037] The scale of the display range frame C displayed in the sub-display area 13b immediately after the sub-display program is started is called the reference scale. Furthermore, when the sub-display button 13c is turned off, the display control unit 25 causes the sub-display area 13b to disappear from the main display area 13a as shown in FIG.

[0038] (5. Control device 11) As shown in Fig. 1, the control device 11 is made up of a computer. The computer has a CPU (Central Processing Unit) 22 and a storage unit 24 equipped with a ROM, RAM, hard disk, etc. The storage unit 24 stores various programs such as an NC program and a sub-display program. The RAM is a working memory.

[0039] When the CPU 22 executes the sub-display program, it functions as a display control unit 25, an image processing unit 27, and a position detection unit 28. When the CPU 22 executes the NC program, it performs automatic grinding.

[0040] (5.1. Image Processing Unit 27) The image processing unit 27 performs filtering on the image acquired by the imaging unit 39 and then outputs the image to the display control unit 25 .

[0041] (5.2. Position detection unit 28) The position detection unit 28 calculates the position of the grinding wheel 35 in the mechanical coordinate system based on the operation signals from the encoders 17b and 18b. The position detection unit 28 outputs the calculated position of the grinding wheel 35 in the mechanical coordinate system to the display control unit 25. The grinding wheel 35 corresponds to the removal tool.

[0042] (5.3. Display control unit 25) (5.3.1. Display Targets in the Main Display Area 13a) The display control unit 25 displays in the main display area 13a an image captured within the imaging range by the imaging unit 39. Therefore, when the grinding wheel 35 or the workpiece W is within the imaging range, an actual image of the grinding wheel 35 or an image of the workpiece W is displayed in the main display area 13a.

[0043] (5.3.1.1. Display of workpiece contour Ba in main display area 13a) The display control unit 25 can display the workpiece contour Ba in the main display area 13a. The workpiece contour Ba is based on the workpiece contour data of the workpiece W stored in the storage unit 24 as shown in FIG.

[0044] (5.3.1.2. Display position of workpiece contour Ba) The display position of the workpiece contour Ba in the main display area 13a (image coordinate system of the main display area) is set in advance and stored in the storage unit 24. The display position of the workpiece contour Ba (image coordinate system of the main display area) is obtained by converting the position of the workpiece W in the machine coordinate system during grinding.

[0045] The display control unit 25 can display the workpiece outline Ba based on the previously set display position (image coordinate system of the main display area) even when there is no captured image of the workpiece W. The workpiece outline data is written in DXF (Drawing Exchange Format).

[0046] (5.3.1.3. Display of grinding wheel contour) The display control unit 25 can display the grindstone contour in the main display area 13a. The grindstone contour is based on grindstone contour data stored in the storage unit 24.

[0047] The grinding wheel profile data is obtained by the following method. The grinding marks on the dummy workpiece are formed by grinding with the grinding wheel. The grinding wheel profile data is acquired by performing edge detection processing on the captured image of the grinding marks. The grinding wheel profile data corresponds to the removal tool profile data.

[0048] The grindstone contour displayed in the sub-display area 13b is marked with the symbol "Ab." The workpiece contour displayed in the main display area 13a is marked with the symbol "Ba," and the workpiece contour displayed in the sub-display area 13b is marked with the symbol "Bb."

[0049] The display control unit 25 converts the position of the grindstone 35 in the machine coordinate system, acquired from the position detection unit 28, into a position in the image coordinate system of the main display area 13a. If the position of the grindstone 35 after the coordinate conversion is in the main display area 13a, the display control unit 25 displays the grindstone contour superimposed on the actual image of the grindstone 35 in the main display area 13a.

[0050] Furthermore, if the position of the grindstone 35 after the coordinate conversion is not in the main display area 13a, the display control unit 25 does not display the grindstone contour in the main display area 13a. (5.3.1.4. Enlarged and Reduced Display of the Main Display Area 13a) After the zoom button 13d (see FIG. 4) is turned on, each time the + button 13e is turned on, the display control unit 25 sequentially enlarges the scale of the image in the main display area 13a by a predetermined monitor magnification.

[0051] After the zoom button 13d is turned on, each time the - button 13f is turned on, the display control unit 25 sequentially reduces the scale of the image in the main display area 13a by a predetermined monitor magnification.

[0052] (5.3.2.1. Sub-display area 13b) The sub-display area 13b is provided for the purpose of allowing the operator to easily understand the relationship between the grinding wheel 35 and the imaging range of the imaging unit 39 by displaying the grinding wheel outline Ab and the display range frame C when the grinding wheel 35 is located outside the imaging range of the imaging unit 39. The grinding wheel 35 may be located outside the imaging range of the imaging unit 39, for example, in a preliminary stage of grinding.

[0053] The sub-display area 13b includes the grindstone 35 when the grindstone 35 is positioned at the standby position before grinding, the area around the grindstone 35, the imaging range, and the area around the imaging range. (5.3.2.2. Display target of sub-display area 13b) When the sub-display button 13c is turned on, the display control unit 25 displays a display range frame C at the reference scale in the sub-display area 13b. In addition, the display control unit 25 can display the workpiece contour Bb and the grinding wheel contour Ab.

[0054] The display range frame C is data that is converted into display data when the imaging range of the imaging unit 39 is displayed in the sub-display area 13b. In the sub-display area 13b, the display range frame C corresponds to the imaging range of the imaging unit 39. The display range frame C has a horizontally long rectangular shape.

[0055] (5.3.2.3. Coordinates of display range frame C, workpiece contour Bb and grinding wheel contour Ab) In order to display the display range frame C, the position of the imaging range in the mechanical coordinate system is set in advance and stored in the storage unit 24. The coordinates of the position of the display range frame C in the sub-display area 13b are obtained by converting the position of the imaging range in the mechanical coordinate system into the coordinate system of the sub-display area 13b.

[0056] The workpiece contour Bb and grinding wheel contour Ab are based on the workpiece contour data of the workpiece W and grinding wheel contour data stored in the storage unit 24 as shown in FIG. The grinding wheel profile Ab corresponds to the removal tool profile.

[0057] The position of the workpiece contour Bb in the machine coordinate system is set in advance and stored in the storage unit 24. The display control unit 25 converts the coordinates (machine coordinate system) of the position of the workpiece contour Bb into the coordinate system of the sub-display area 13b.

[0058] The position of the grinding wheel contour Ab in the sub-display region 13b is acquired as follows. Based on the operation signals from the encoders 17b and 18b, the position detection unit 28 calculates the position of the grinding wheel contour Ab in the machine coordinate system. The position detection unit 28 outputs the calculated position of the grinding wheel contour Ab in the machine coordinate system to the display control unit 25.

[0059] The display control unit 25 converts the coordinates (machine coordinate system) of the position of the grinding wheel contour Ab into the coordinate system of the sub-display area 13b. As a result, the display control unit 25 controls the display of the grinding wheel contour Ab in synchronization with the movement of the grinding wheel 35 based on the detection of the position of the grinding wheel 35 by the position detection unit 28.

[0060] (5.3.2.4. Enlarged and Reduced Display of Sub-Display Area 13b) After the zoom button 13d (see FIG. 6) is turned on, each time the + button 13e is turned on, the display control unit 25 sequentially reduces the display range frame C displayed at the reference scale of the sub-display area 13b by a predetermined display magnification.

[0061] After the zoom button 13d is operated to be ON, each time the - button 13f is operated to be ON, the display control unit 25 sequentially enlarges the display range frame C displayed at the reference scale of the sub-display area 13b by a predetermined display magnification.

[0062] (Operation of the embodiment) Next, we will explain the operation of the profile grinding device 10. For the sake of convenience, we will assume that the operator positions the workpiece W (see FIG. 1) outside the imaging range of the imaging unit 39 and positions the grinding wheel 35 at a standby position outside the imaging range of the imaging unit 39. This position is, for example, the position during teaching.

[0063] In this state, it is assumed that the operator has a preset workpiece contour Ba displayed in the main display area 13a, as shown in FIG. When the operator turns on the sub-display button 13c shown in Fig. 3, the display control unit 25 starts a sub-display program. This sub-display program is executed at a predetermined interval. Fig. 2 is a flowchart of the sub-display program.

[0064] (S10) In S10, the display control unit 25 determines whether the zoom button 13d has been turned on by checking whether an on flag is set. When the zoom button 13d is turned on, the on flag is set. When the zoom button 13d is turned off, the on flag is reset.

[0065] If the zoom button 13d is not turned on, the process proceeds to S20, whereas if the zoom button 13d is turned on, the process proceeds to S30. (S20) In S20, the display control unit 25 displays an image of the subject within the imaging range of the imaging unit 39 and the set workpiece contour Ba in the main display area 13a at a preset scale. The display control unit 25 also displays a display range frame C in the sub-display area 13b at a reference scale. Additionally, the display control unit 25 displays the workpiece contour Bb and the grinding wheel contour Ab.

[0066] As a result, when this program is executed at a predetermined cycle and S10 and S20 are repeated, the scale of the images in the main display area 13a and the sub-display area 13b is maintained. Fig. 4 shows that the sub-display area 13b has been formed in the main display area 13a by the display control unit 25. Fig. 5 shows an enlarged view of the sub-display area 13b in Fig. 4. Fig. 5 also shows that the grinding wheel 35 is in the standby position.

[0067] 5, the display control unit 25 displays the grinding wheel contour Ab, the workpiece contour Bb, the display range frame C, and the cross line D in the sub-display area 13b. The cross line D is the cross line of the X-axis and the Y-axis. The position of the intersection of the X-axis and the Y-axis indicates the position of the tip of the grinding wheel contour Ab.

[0068] The position of the tip of the grindstone profile Ab corresponds to the position of the tip of the grindstone 35 in the machine coordinate system. Assume that the operator operates the X-axis operating device 17 and the Y-axis operating device 18 to move the grinding wheel 35, which has been positioned in the standby position, toward the field of view (imaging range) of the imaging unit 39. In this case, the operator operates the X-axis operating device 17 and the Y-axis operating device 18 while looking at the sub-display area 13b so as to move the grinding wheel outline Ab toward the display range frame C.

[0069] This allows the grindstone 35, which is not displayed in the main display area 13a, to be easily brought closer to the field of view of the imaging unit 39. Here, even if the X-axis operation device 17 and the Y-axis operation device 18 are operated by the operator, the determination in S10 will be "NO" unless the zoom button 13d is turned on. In this case, the process of S20 is executed.

[0070] (S30) In S30, the display control unit 25 determines whether the + button 13e has been turned on after the zoom button 13d is turned on. If the + button 13e has been turned on, the process proceeds to S40; if the + button 13e has not been turned on, the process proceeds to S50.

[0071] (S40) In S40, the display control unit 25 enlarges the scale of the image in the main display area 13a at a predetermined monitor magnification based on the on-operation of the + button 13e. At the same time, the display control unit 25 reduces the size of the display range frame C of the sub-display area 13b displayed at the reference scale to be smaller than the size of the reference scale based on the on-operation of the + button 13e.

[0072] The predetermined monitor magnification m (m > 1) in the main display area 13a is, for example, 2 times, etc., but is not limited to this value. In the sub-display area 13b, the predetermined display magnification n (n < 1) with respect to the display range frame C displayed at the reference scale is 1 / 2, but is not limited to this value.

[0073] Also, each time the + button 13e is turned on, in the main display area 13a, an image obtained by multiplying the previous display scale by a predetermined monitor magnification m (m > 1) is displayed. On the other hand, each time the + button 13e is turned on, in the sub-display area 13b, the previous display range frame C is multiplied by a predetermined display magnification n (0 < n < 1), and the display range frame is displayed smaller. The sizes of the grinding wheel contour Ab and the workpiece contour Bb are not changed.

[0074] Note that when the on-operations of the + button 13e are continuous, the allowable number of on-operations is limited to a predetermined number. Fig. 6 shows a case where the zoom button 13d and the + button 13e are both turned on while the workpiece outline Ba is displayed in the main display area 13a. In the example shown in Fig. 6, the workpiece outline Ba is enlarged more than the workpiece outline Ba shown in Fig. 4.

[0075] This example is an example in which the actual image of the grinding wheel 35 in the main display area 13a before the workpiece contour Ba is enlarged is not displayed in the main display area 13a when enlarged at a predetermined monitor magnification, as shown in Figure 6.

[0076] Even in this case, the grinding wheel contour Ab is displayed in the sub-display area 13b shown in Figures 6 and 7. Here, with reference to the display range frame, the size of the display range frame when the zoom button 13d is not operated and when the zoom button 13d is operated and the + button 13e is turned on will be described.

[0077] Display range frame C when zoom button 13d is operated and before + button 13e is turned on is displayed in dotted lines as shown in Figure 7. Display range frame Ca when zoom button 13d is operated and + button 13e is turned on is displayed in solid lines. Comparing the two, it can be seen that the scale of display range frame Ca is smaller than the scale of display range frame C.

[0078] (S50) In S50, the display control unit 25 determines whether the - button 13f has been turned on after the zoom button 13d has been turned on. If the - button 13f has been turned on, the process proceeds to S60, and if the - button 13f has not been turned on, the process returns to S10.

[0079] (S60) In S60, the display control unit 25 reduces the scale of the image in the main display area 13a by a predetermined monitor magnification based on the ON operation of the - button 13f. At the same time, the display control unit 25 enlarges the display range frame C of the sub-display area 13b, which is displayed at the standard scale, by a predetermined display magnification based on the ON operation of the - button 13f.

[0080] The predetermined monitor magnification 1 / m (m > 1) in the main display area 13a is, for example, 1 / 2 times or the like, but is not limited to this value. The predetermined display magnification 1 / n (0 < n < 1) in the sub-display area 13b is 2 times, but is not limited to this value.

[0081] Also, every time the - button 13f is turned on, in the main display area 13a, an image obtained by multiplying the previous display scale by the predetermined monitor magnification 1 / m (m > 1) is displayed. On the other hand, every time the - button 13f is turned on, in the sub-display area 13b, the display range frame C is enlarged and displayed by multiplying the size of the previous display range frame by the predetermined display magnification 1 / n (0 < n < 1). The sizes of the grinding wheel contour Ab and the workpiece contour Bb are not changed.

[0082] Note that when the on-operation of the - button 13f is continuous, the allowable number of on-operations is limited to a predetermined number. In the present embodiment, it has the following features.

[0083] (1) The display control unit 25 of the profile grinding apparatus 10 controls the display of the display range frame C representing the main display area 13a in the sub-display area 13b. The display control unit 25 controls the display of the grinding wheel contour Ab (removing tool contour) based on the grinding wheel contour data (removing tool contour data) in synchronization with the movement of the grinding wheel 35 in the sub-display area 13b based on the detection of the position of the grinding wheel 35 (removing tool) by the position detection unit 28.

[0084] With the above configuration, when the position of the grinding wheel 35 is outside the imaging range, the grinding wheel contour Ab is displayed so as to be outside the display range frame C representing the imaging range. Also, when the position of the grinding wheel 35 is within the imaging range, the grinding wheel contour Ab is displayed so as to be within the display range frame C.

[0085] As a result, the relationship between the grinding wheel 35 and the visual field of the imaging unit 39 can be grasped, and the workability of operating the grinding wheel 35 can be improved. (2) The storage unit 24 stores workpiece contour data. The display control unit 25 displays workpiece contours Ba and Bb based on the workpiece contour data in the main display area 13a and the sub-display area 13b, respectively.

[0086] With the above configuration, the workpiece contour Ba and the workpiece contour Bb are displayed in the main display area 13a and the sub-display area 13b, respectively, allowing the operator to know the positional relationship of the grinding wheel 35 with respect to the workpiece contour Ba and the workpiece contour Bb.

[0087] In particular, the movement of the workpiece contour Bb is displayed in synchronization with the movement of the grinding wheel 35, so the operator can easily understand the positional relationship between the grinding wheel 35 and the workpiece contour Bb by looking at the sub-display area 13b.

[0088] (3) The sub-display area 13b is positioned within the main display area 13a. In the above configuration, the grindstone outline Ab is displayed in the sub-display area 13b so as to be located within the field of view (imaging range) of the imaging unit 39 or outside the imaging range frame, and in synchronization with the movement of the grindstone 35.

[0089] As a result, the operator can easily move the viewpoint from the main display area 13a to the sub-display area 13b located within the main display area 13a, or from the sub-display area 13b to the main display area 13a.

[0090] (4) When the monitor magnification of the main display area 13a is increased, the display control unit 25 reduces the size of the display range frame C of the sub-display area 13b to be smaller than the size of the display range frame before the monitor magnification of the main display area 13a was increased.

[0091] As a result, the monitor magnification of the main display area 13a increases, which may cause the removal tool image displayed in the main display area to disappear. In this case, the display range frame C of the sub-display area 13b becomes smaller, so that the removal tool outline continues to be displayed in the sub-display area 13b.

[0092] In this way, the grindstone outline Ab continues to be displayed in the sub-display area 13b. Therefore, the worker can confirm the position of the grindstone 35 by looking at the grindstone outline Ab in the sub-display area 13b instead of the actual image of the grindstone 35 that can no longer be seen in the main display area 13a. As a result, the worker will not lose sight of the grindstone 35.

[0093] This embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within the scope of technical inconsistency.

[0094] In the above embodiment, the removal processing display device is embodied in a profile grinding device. Alternatively, the removal processing display device may be embodied in a cutting processing device or a polishing processing device. In the cutting processing device, the removal tool may be a cutting tool. In the polishing processing device, the removal tool may be a polishing tool.

[0095] In the above embodiment, the workpiece outline Bb is displayed in the sub-display area 13b, but the display of the workpiece outline Bb may be omitted. In the above embodiment, the sub-display area 13b is arranged inside the main display area 13a, but it may be arranged outside the main display area 13a. [Explanation of symbols]

[0096] 10...Profile grinding device (removal processing display device) 11...Control device 12...Display 13...screen 13a...Main display area 13b...Sub display area 13c...Sub display button 13d...Zoom button 13e…+ button 13f...-button 14...Console 16…Mouse 17...X-axis operating device (manual operating section) 17a...Manual handle 17b...Encoder 18...Y-axis operating device (manual operating section) 18a...Manual handle 18b...encoder 22...CPU 24...Storage section 25...Display control unit 27...Image processing unit 28...Position detection unit 30...Grinding section 31...Grinding mechanism 32...Work holding mechanism 33...Movement mechanism section 34...Lighting equipment 35...Grinding stone (removal tool) 36...Z-axis motor 37...X-axis motor 38...Y-axis motor 39...imaging unit 39a...Cover Ab... Grinding wheel contour (removal tool contour) Ba...Workpiece contour Bb...Workpiece contour W…Work

Claims

1. a display having a main display area and a sub display area; a manual operation unit that manually operates the movement of the removal tool; a position detection unit that detects the position of the removal tool; an imaging unit that images a workpiece and the removal tool; a display control unit that controls the display of at least an image acquired by the imaging unit in the main display area; A removal processing display device including a storage unit that stores removal tool contour data of the removal tool, The display control unit A removal processing display device that displays and controls a display range frame representing the main display area in the sub-display area, and displays and controls a removal tool contour based on the removal tool contour data in synchronization with the movement of the removal tool based on the detection of the position of the removal tool by the position detection unit.

2. The storage unit stores workpiece contour data of the workpiece, The removal processing display device according to claim 1 , wherein the display control unit displays a workpiece contour based on the workpiece contour data in the sub-display area.

3. 3. The removal processing display device according to claim 1, wherein the sub-display area is located inside or outside the main display area.

4. When the monitor magnification of the main display area is increased, the display control unit 4. The removal processing display device according to claim 3, wherein the size of the display range frame is made smaller than the size of the display range frame before the monitor magnification of the main display area is increased.

Images