JP7152925B2 - machine tool with projector - Google Patents

Description

TECHNICAL FIELD The present invention relates to a projector-equipped machine tool having a projector capable of magnifying and projecting an object to be processed (work), and particularly to an optical profiling grinder.

2. Description of the Related Art Conventionally, an optical copying grinder is known as a machine tool with a projector capable of projecting an enlarged image of a workpiece (work). A conventional optical profiling grinder places a chart paper on which the shape of the workpiece to be ground (desired shape) is drawn on a projection screen, and projects a projected image of the workpiece and/or the grinding wheel onto the projection screen. This makes it possible to simultaneously view the projected image on the projection screen and the desired shape of the chart paper while grinding the workpiece so that these shapes match. (Patent Document 1, etc.).

Further, in a conventional optical profiling grinder, grinding can be performed by automatic control by operating the grinding wheel and/or the workpiece based on a machining program that matches the desired shape of the workpiece (Patent Document 2 etc.). As a method of creating such a machining program, for example, the projected image of the grindstone and the desired shape of the chart paper are simultaneously projected on the projection screen, and the grindstone position is taught (measured and registered) along the outline of the desired shape of the chart paper. ) to create a machining program, a so-called teaching playback method and the like are known.

In such a conventional optical profiling grinder, it is fundamental to visually observe the projected image on the projection screen both when performing the grinding process and when creating the machining program, so errors are large. , there is a problem that highly accurate measurement is difficult. Therefore, in the optical profiling grinder of Patent Document 1, an image processing device is provided separately from the projection screen for photographing and magnifying the ground portion of the workpiece. It is configured to be compatible with highly accurate measurement.

JP-A-08-197405 Japanese Patent No. 6216656

In recent years, processed products such as mold parts and tools have become increasingly finer and more precise, and along with this, optical profiling grinders are required to perform grinding processing and work shape measurement in micron units. . According to the optical copying grinder disclosed in Patent Document 1, by setting the magnification of the image processing device high, it is possible to observe the shape of the workpiece in units of microns. However, in the optical copying grinder of Patent Document 1, if the magnification of the image processing device is increased to the extent that observation can be made in units of microns, the field of view becomes extremely narrow, and even if the entire projected image is projected onto the projection screen. However, there is a problem that it is difficult to understand which part of the work is to be observed in the enlarged image displayed on the image processing apparatus. In addition, since the magnified image displayed on the image processing device changes greatly even when the workpiece is slightly moved to change the observation region of the work, it is easy to lose sight of the observation region, and the image processing device cannot align the observation region. The problem is that it is difficult.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a machine tool with a projector capable of performing highly accurate measurement while ensuring a wide field of view.

In order to achieve the above object, a machine tool with a projector according to the present invention is a machine tool with a projector, which has a projector capable of projecting an enlarged image of a workpiece. a first enlarging means for enlarging a part of the projected image projected on the screen; and displaying a part of the projected image within the enlarged area of the first enlarging means at a higher magnification than the first enlarging means. and a second enlarging means.

In the machine tool with a projector according to the present invention, the first magnifying means may include an optical magnifier spaced apart so as to face the projection screen.

In the machine tool with a projector according to the present invention, the second enlarging means may include a camera that captures part of the projected image.

In the machine tool with a projector according to the present invention, the first magnifying means includes an optical loupe spaced apart so as to face the projection screen, and the second magnifying means magnifies a portion of the projected image. It is preferable that a camera for photographing is provided, the optical magnifier is configured to be movable on the projection screen, and the camera is configured to be movable on the projection screen integrally with the optical magnifier.

The machine tool with a projector according to the present invention further includes a beam splitter provided between the projection screen and the optical magnifier, and the second enlargement means enlarges a part of the projected image via the beam splitter. may be configured to be able to shoot.

In the machine tool with a projector according to the present invention, the first enlarging means has a camera function capable of photographing a portion of the projected image projected onto the projection screen, and displays the photographed image photographed by the camera function. wherein the second enlarging means acquires the photographed image from the first enlarging means and enlarges the photographed image at a higher magnification than the photographed image displayed by the first enlarging means. It may be configured such that a part thereof can be displayed.

Further, in the machine tool with a projector according to the present invention, the second enlargement means is a display that displays a part of the projected image within the enlargement area of the first enlargement means at a higher magnification than the first enlargement means. and capable of displaying image data of the desired shape on the display so that the desired shape of the workpiece and the projected image on the display can be viewed at the same time.

In this case, the second enlarging means is configured to be able to move the projected image on the display, and to move the image data of the desired shape to the display in accordance with the movement of the projected image. It is preferably configured so that it can be moved on top.

Further, in the machine tool with a projector according to the present invention, the chart paper on which the desired shape is drawn can be arranged so that the desired shape of the workpiece and the projected image on the projection screen can be visually recognized at the same time. may be configured to

The machine tool with a projector according to the present invention may be an optical copying grinder having a grindstone capable of grinding a workpiece.

ADVANTAGE OF THE INVENTION According to this invention, the machine tool with a projector which can perform a highly accurate measurement while ensuring a wide visual field can be provided.

1 is a diagram schematically showing the overall configuration of an optical profiling grinder according to one embodiment of the present invention; FIG. It is a figure which shows roughly the optical structure of the optical profiling grinder which concerns on this embodiment. It is a figure which shows schematic structure of an optical magnifying glass. It is a figure which shows the schematic structure of a photography display means. FIG. 5(a) is a diagram showing a projection image projected on a projection screen, FIG. 5(b) is a diagram showing a projection image magnified by an optical loupe, and FIG. It is a figure which shows the image displayed by the imaging|photography display means.

Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. In addition, the following embodiments do not limit the invention according to each claim, and not all combinations of features described in the embodiments are essential for the solution of the invention. .

[First embodiment]
First, the overall configuration of a machine tool with a projector according to the first embodiment will be described with reference to FIG. In the following description, it is assumed that the machine tool with a projector according to the present embodiment is an optical profiling grinder, but it is not limited to this, and other machine tools with a projector can be machine tool. Further, in the following description, "X-axis direction" means a direction perpendicular to the paper surface of FIG. 1, "Z-axis direction" means a vertical direction in FIG. means the left-right direction in

As shown in FIG. 1, an optical profiling grinder 1 according to this embodiment includes a work holding mechanism 10 for holding a work W to be processed, and a work holding mechanism 10 for grinding the work W on the work holding mechanism 10. A grindstone holding mechanism 20 that holds a grindstone 22, a projector 30 that can magnify and project a workpiece W, and an optical loupe that enlarges a part of the projected image projected on the projection screen 31 of the projector 30. 40 (first magnifying means), photographing display means 50 (second magnifying means) for displaying a part of the projected image in the magnified area of the optical loupe 40 at a magnification higher than that of the optical loupe 40, and grinding processing. It is equipped with an operation control panel 60 capable of inputting and registering various kinds of information and automatically controlling the optical copying grinder 1 based on a predetermined machining program. Since the operation control panel 60 according to the present embodiment can employ various known configurations, detailed description thereof will be omitted.

As shown in FIG. 1, the work holding mechanism 10 includes a work table 12 on which a work W is placed, and the work table 12 is moved in the X-axis direction, the Y-axis direction, and the Y-axis direction by an operator's operation or automatic control based on a machining program. An X-axis direction moving mechanism 14, a Y-axis direction moving mechanism 16, and a Z-axis direction moving mechanism 18 are provided for moving in the Z-axis direction, respectively. These X-axis direction moving mechanism 14, Y-axis direction moving mechanism 16 and Z-axis direction moving mechanism 18 are each provided with an operation handle (not shown) operated by an operator. , the workpiece W is moved along the X-axis direction, the Y-axis direction and the Z-axis direction. Note that the work holding mechanism 10 according to the present embodiment can employ a known configuration disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-200012, and therefore detailed description thereof will be omitted.

As shown in FIG. 1, the grindstone holding mechanism 20 includes a grindstone head 24 on which a grindstone 22 is rotatably supported, and an operator's operation or automatic control based on a machining program to move the grindstone head 24 in the X-axis and Y-axis directions. An X-axis direction moving mechanism 25 and a Y-axis direction moving mechanism 26 are provided for moving in the respective directions. The grindstone head 24 supports the grindstone 22 movably along the Z-axis direction, and is configured to function as a mechanism for moving the grindstone 22 in the Z-axis direction. The X-axis direction moving mechanism 25 has an X-axis handle 27 operated by an operator, and is configured to move the grindstone 22 along the X-axis direction by the operator's operation via the X-axis handle 27. It is The Y-axis direction moving mechanism 26 is provided with a Y-axis handle 28 operated by an operator, and the grindstone 22 is moved along the Y-axis direction by the operator's operation via the Y-axis handle 28. is configured as follows. Note that the whetstone holding mechanism 20 according to the present embodiment can adopt a known configuration disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-200012, and therefore detailed description thereof will be omitted.

With the above configuration, the optical profiling grinder 1 according to the present embodiment can manually or automatically control based on a machining program to grind the workpiece W placed on the work table 12 in the X-axis, Y-axis, and Z-axis directions. can be positioned. In addition, the optical copying grinder 1 contacts the workpiece W while moving the grindstone 22 rotated at a predetermined number of revolutions in the X-axis direction, the Y-axis direction and the Z-axis direction manually or by automatic control based on the machining program. The workpiece W can be ground by bringing it into contact with the workpiece.

In the projector 30, as shown in FIG. 2, a light beam BM emitted from a light source 32 such as an LED passes through a lens group 33 and a dust-proof glass 34a to irradiate the workpiece W and the grindstone 22, and the shadows thereof are projected onto the dust-proof glass. 34b, a half mirror 35, a reflecting mirror 36a, a magnifying lens 37 and a reflecting mirror 36b. The magnifying lens 37 is configured to be able to arbitrarily change the magnification of the projected image. For example, it is configured to be able to select an arbitrary magnifying lens from a plurality of magnifying lenses having different magnifications. The projector 30 according to the present embodiment is configured to be able to project the work W and the grindstone 22 on the projection screen 31 by enlarging them at a magnification of about 20 to 50 times. In addition, the projector 30 reflects the light beam BM' from the reflected image light source lamp 38 by the half mirror 35 to illuminate the work W and the grindstone 22 from above, and also projects an image of the work W and the grindstone 22 from above. It is configured so that it can be projected on the screen 31 . Note that the projector 30 according to the present embodiment is not limited to the configuration shown in FIG. 2, and various known projectors can be employed, so detailed description thereof will be omitted.

Projector 30 has a projection screen 31 capable of projecting shadows reflected by reflector 36b. In this embodiment, the projector 30 is configured such that a projection screen 31 can be arranged in a detachable manner. It is a drawn chart paper. Thus, the projector 30 according to this embodiment is configured so that the desired shape 2 of the work W and the projected image on the projection screen 31 can be visually recognized at the same time, as shown in FIG. 5(a). .

With the above configuration, the projector 30 according to the present embodiment, as shown in FIG. The workpiece W can be ground so as to match. In addition, the projector 30 according to the present embodiment simultaneously projects the projected image of the grindstone 22 and the desired shape 2 of the chart paper onto the projection screen 31 even when creating a machining program by the teaching playback method. It is configured to be able to teach (measure and register) the grinding wheel position along the contour of the shape. It should be noted that the machining program is created by the teaching playback method with the workpiece W removed.

The optical magnifying glass 40, as shown in FIG. , and a loupe moving mechanism 43 that supports the loupe body 41 movably on the plane of the projection screen 31 .

As shown in FIG. 3, the loupe moving mechanism 43 includes an upper guide rail 44a provided along the upper edge of the projection screen 31 and an upper slider 45a slidable along the upper guide rail 44a. , a lower guide rail 44b provided along the lower edge of the projection screen 31, a lower slider 45b slidable along the lower guide rail 44b, and a bridge between the upper slider 45a and the lower slider 45b. and a pair of guide bars 46a and 46b. The loupe moving mechanism 43 can restrict the movement of the magnifying body 41 in the Y-axis direction (horizontal direction) by locking the movement of the upper slider 45a and the lower slider 45b with respect to the upper guide rail 44a and the lower guide rail 44b. A lock mechanism (not shown) may also be provided.

As shown in FIG. 3, the loupe main body 41 is supported between a pair of guide bars 46a and 46b, and is configured to be vertically slidable along the pair of guide bars 46a and 46b. A clamping mechanism 42 is provided on one side of the loupe body 41 to switch between a clamping state and a non-clamping state with respect to one guide bar 46a. The clamping mechanism 42 allows the movement of the magnifying body 41 in the Z-axis direction (that is, sliding along the pair of guide bars 46a and 46b) in the unclamped state, and the movement of the magnifying body 41 in the Z-axis direction in the clamped state. is configured to regulate and position the Although the magnifying glass main body 41 is not particularly limited, for example, a magnifying glass having a magnification of about 2 to 4 times (about 40 to 200 times the actual objects of the work W and the grindstone 22) is adopted. It is possible.

With the above configuration, the optical magnifier 40 can move the magnifying body 41 in the Z-axis direction (vertical direction) by putting the clamping mechanism 42 of the magnifying body 41 into the unclamped state. By sliding the lower slider 45b along the upper guide rail 44a and the lower guide rail 44b, the loupe main body 41 can be moved in the Y-axis direction (horizontal direction). By clamping the clamping mechanism 42 of the magnifying glass 41 at an arbitrary position, it is possible to fix (position) the magnifying glass 41 on the projection screen 31 .

As shown in FIGS. 1 and 2, the photographing display means 50 includes a camera 52 for photographing a portion of the projected image through a beam splitter 59, which will be described later, and a display 54 for displaying the photographed image photographed by the camera 52. and Further, as shown in FIG. 4, the photographing display means 50 includes an image processing section 56 for performing image processing so that the photographed image photographed by the camera 52 can be displayed on the display 54, and a controller for operating the photographing display means 50. and a storage unit 58 in which various information and programs are stored. The image processing unit 56 performs, for example, a process of reversing a projected image that has been reversed by reflection on the beam splitter 59 so as to return it to its original orientation, and a process of enlarging or reducing the image on the display 54 by operator's operation. configured as possible. A personal computer or the like to which a camera 52 is connected can be used as such a photographing display means 50 .

The camera 52 is fixed to the loupe body 41 of the optical loupe 40 as shown in FIG. The photographing display means 50 is configured to display a photographed image at a magnification higher than that of the optical magnifying glass 40, for example, a magnification of about 300 to 700 times that of the actual workpiece W and grindstone 22. FIG. As such a configuration, for example, a configuration in which an image captured by the camera 52 is enlarged by image processing in the image processing unit 56 and displayed is exemplified. Instead of or in addition to this configuration, a magnifying lens having a higher magnification than the optical magnifying glass 40 is provided between the beam splitter 59 and the camera 52 , and the projected image magnified by the magnifying lens is viewed by the camera 52 . It is also possible to employ a configuration for shooting.

The optical profiling grinder 1 according to this embodiment further comprises a beam splitter 59 provided between the projection screen 31 and the optical loupe 40 and the camera 52 of the photographing display means 50, as shown in FIG. . The beam splitter 59 can see through the projected image on the projection screen 31 from the optical loupe 40 through the beam splitter 59, and directs the projected image on the projection screen 31 to the camera 52 of the photographing display means 50. It is configured so that it can be reflected by A half mirror, for example, can be used as such a beam splitter 59 . In the illustrated example, the optical magnifier 40 is arranged so as to face the projection screen 31, and the camera 52 is arranged in a direction perpendicular to the facing direction, but the present invention is not limited to this, and various arrangements can be made. It is also possible to add appropriate components such as reflecting means according to the arrangement.

By providing such a beam splitter 59, the optical copying grinder 1 according to the present embodiment can simultaneously observe the same area with the optical loupe 40 and the imaging display means 50 at different magnifications. ing. That is, the photographing display means 50 according to this embodiment is configured to display a portion of the projected image within the enlarged area of the optical magnifying glass 40 at a magnification higher than that of the optical magnifying glass 40 .

As described above, the optical copying grinder 1 according to the present embodiment includes the optical loupe 40 for enlarging a part of the projected image projected on the projection screen 31 of the projector 30 and the projection image projected on the projection screen 31. a photographing display means 50 for photographing and displaying a part of the projected image, the photographing display means 50 displaying the part of the projected image within the enlarged area of the optical loupe 40 at a magnification higher than that of the optical loupe 40. configured to display.

The optical copying grinder 1 according to the present embodiment is configured as described above, so that the low-magnification enlargement by the projector 30, the medium-magnification enlargement by the optical magnifier 40, and the high-magnification by the photographing display means 50 In combination with the enlargement of the magnification, it is possible to grind the workpiece W and create a machining program by the teaching playback method while visually recognizing each of these enlarged images at the same time. According to such an optical profiling grinder 1, for example, as shown in FIG. Meanwhile, as shown in FIG. 5(b), a region desired to be observed in the projected image 4 is enlarged by an optical loupe 40 at a medium magnification and selected, and as shown in FIG. 5(c), the selection is performed. It is possible to measure the shape and dimensions of the details of the workpiece by displaying the captured area further enlarged at a high magnification by the photographing display means 50. It has the advantages of being able to perform accurate measurements and dramatically improving convenience.

In addition, the optical copying grinder 1 according to the present embodiment is provided with the beam splitter 59 between the projection screen 31 and the optical loupe 40 and the photographing display means 50. can be simultaneously observed by the optical loupe 40 and the photographing display means 50 .

Further, the optical copying grinder 1 according to this embodiment is configured to display a photographed image enlarged at a high magnification on the display 54 of the photographing display means 50. Since there is no inconvenience such as a different appearance, stable measurement is possible even for non-experts.

Further, in the optical copying grinder 1 according to the present embodiment, the optical magnifier 40 and the camera 52 are integrally movable on the projection screen 31, so that the projection image on the projection screen 31 can be more reliably identical. The site can be observed simultaneously by the optical loupe 40 and the image display means 50 .

Furthermore, since the optical copying grinder 1 according to this embodiment is configured so that the chart paper can be placed on the projection screen 31, the desired shape 2 drawn on the chart paper and the projected image 4 of the work W can be displayed. At the same time, it is possible to observe the workpiece at a high magnification, so that even an unskilled person can easily judge the shape and dimensions of the workpiece.

[Second embodiment]
In the above-described first embodiment, the chart paper on which the desired shape 2 of the workpiece W is drawn is used as the projection screen 31, and the desired shape 2 of the chart paper and the projected image 4 are photographed by the photographing display means 50 and displayed. However, it is not limited to this. For example, like the optical copying grinder according to the second embodiment described below, a configuration in which the desired shape 2 of the workpiece W is drawn on the display 54 by image processing in the photographing display means 50 without using chart paper. can also be adopted.

That is, in the optical copying grinder according to the second embodiment of the present invention, image data (for example, line drawing data) of the desired shape 2 of the workpiece W is stored in advance in the storage unit 58 of the photographing display means 50, and the image data is stored in advance. The image captured by the camera 52 and the image data of the desired shape 2 of the workpiece W stored in the storage unit 58 are superimposed and displayed on the display 54 by the processing unit 56, so that both data can be visually recognized at the same time. configured to be possible. In the following description, it is assumed that the image data of the desired shape 2 of the workpiece W stored in the storage unit 58 is "line drawing data".

Specifically, in addition to the processing of the image processing unit 56 according to the first embodiment described above, the image processing unit 56 further uses a reference point (for example, a corner of the workpiece W) specified by the operator as a reference, After aligning the position of the photographed image photographed by the camera 52 with the line drawing data of the desired shape 2 of the workpiece W, the processing of superimposing both data and displaying them on the display 54 can be executed. . In addition, the image processing unit 56 can execute a process of enlarging or reducing the line drawing data of the desired shape 2 of the work W at the same magnification at the same time as or following enlargement or reduction of the photographed image by the operator's operation. It is configured.

Further, the image processing unit 56 is configured to be capable of executing a process of moving the captured image on the display 54 by the operation of the operator in a state in which the captured image and the line drawing data are enlarged, and moving the captured image. Simultaneously with or following this, it is configured to be able to execute a process of moving the line drawing data synchronously. The synchronous movement processing of the photographed image and the line drawing data is similarly executed when the work W is moved by the work holding mechanism 10 and the photographed image on the display 54 is moved accordingly. In this case, the coordinate position of the work W is obtained from the work holding mechanism 10, the amount of movement of the work W is calculated, the amount of movement is converted into the amount of movement on the display 54 based on a predetermined set magnification, and the By moving the line drawing data based on the conversion movement amount, the line drawing data can be moved in synchronization with the captured image.

As with the optical profiling grinder 1 according to the first embodiment, the optical profiling grinder according to the second embodiment described above also secures a wider field of view than the conventional optical profiling grinder. It has the advantage of being able to perform highly accurate measurement while maintaining a high degree of accuracy, and that the convenience is dramatically improved.

Further, since the optical copying grinder according to the second embodiment is configured to be able to display the image data of the desired shape 2 of the work W on the display 54, the desired shape and the projected image 4 of the work W can be displayed at the same time. Observation at a high magnification becomes possible, which makes it possible to easily determine the shape and dimensions of the workpiece without using chart paper, even by non-experts.

In particular, the optical copying grinder according to the second embodiment is configured such that the image data displayed on the display 54 can be moved in accordance with the movement of the projection image 4, so that the display 54 of the photographing display means 50, for example, It is possible to observe the entire work W that does not fit within the display range of , together with the image data.

In the optical copying grinder according to the second embodiment, since it is not necessary to use chart paper as the projection screen 31, a screen on which the desired shape 2 of the workpiece W is not drawn is provided integrally with the projector 30. It is also possible to configure

Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above-described embodiments. Various changes or improvements can be added to each of the above embodiments.

[Other embodiments]
For example, in the first and second embodiments described above, the optical profile grinding machine 1 is described, but the present invention is not limited to this, and can be applied to various machine tools as long as they are machine tools with projectors. It is possible to use

In the above-described first and second embodiments, the beam splitter 59 is provided between the projection screen 31 and the optical loupe 40 and the photographing display means 50. However, the present invention is not limited to this. Various configurations can be employed as long as they are configured to further enlarge and display a part of the projected image obtained by the imaging display means 50 .

In the above-described first and second embodiments, the optical loupe 40 and the camera 52 have been described as being integrally movable on the projection screen 31, but the present invention is not limited to this. For example, at least one of the optical loupe 40 and the camera 52 may be fixed on the projection screen 31, or the optical loupe 40 and the camera 52 may be independently movable.

In the second embodiment described above, the image data displayed on the display 54 has been described as being movable in accordance with the movement of the projection image. Alternatively, it may be configured to move independently without synchronizing with the movement of the projected image.

In the above-described first and second embodiments, the display 54 provided separately from the projection screen 31 displays the captured image. , or a configuration in which the shot image is displayed on a part of the projection screen 31 (for example, a margin).

In the above-described first and second embodiments, the photographing display means 50 has been described as having a configuration in which the camera 52 and the display 54 are separately provided, but the present invention is not limited to this. may be a tablet terminal (for example, a smartphone, etc.) integrally having.

When a tablet terminal is used as the photographing display means 50, for example, the tablet terminal and the magnifying glass main body 41 are integrated so that the display of the tablet terminal is aligned vertically or horizontally with the viewing hole of the magnifying glass main body 41. can be configured to be provided in. In this case, a beam splitter 59 is provided between the projection screen 31 and the loupe body 41, and an appropriate reflecting mirror is provided between the beam splitter 59 and the camera of the tablet terminal. , the projected image on the projection screen 31 can be photographed by the camera of the tablet terminal.

As another example of using a tablet terminal as the photographing display means 50, a configuration is provided in which the viewing hole of the magnifying glass main body 41 is directly photographed by the camera of the tablet terminal, and the photographed image is enlarged and displayed on the display of the tablet terminal. can be In this case, the tablet terminal has a photographing position that overlaps the magnifying glass body 41 in the front-rear direction, and a retracted position that is shifted so as not to overlap the magnifying glass main body 41 in the front-rear direction so that the peephole of the magnifying glass main body 41 can be visually recognized. It is preferably provided so as to be movable between. According to such a configuration, by positioning the tablet terminal at the shooting position, it is possible to display a high-magnification projection image on the display of the tablet terminal, and by positioning the tablet terminal at the retracted position, , it becomes possible to visually recognize a projected image of medium magnification through the magnifying glass main body 41 .

In the first and second embodiments described above, the optical loupe 40 is employed as the first enlarging means for displaying the projected image on the projection screen 31 at medium magnification, and the optical loupe 40 is used for displaying the projected image on the projection screen 31 at high magnification. 2. Although the configuration in which the shooting display means 50 is employed as the magnifying means has been described as an example, the present invention is not limited to this. For example, as the first enlargement means, a tablet terminal ( For example, it is also possible to employ a smart phone or the like. Even when a tablet terminal is employed in this manner, the tablet terminal can be supported by an appropriate moving mechanism, similar to the magnifying glass main body 41 described in the first and second embodiments. When a tablet terminal is used as the first enlargement means in this way, as an example, a personal computer or the like that acquires a photographed image from the tablet terminal and displays a part of the photographed image at a magnification higher than that of the tablet terminal is used. It is possible to appropriately employ it as the second enlarging means.

It is clear from the description of the scope of claims that modifications such as those described above are included in the scope of the present invention.

1 optical copying grinder (machine tool with projector), 2 desired shape, 4 projection image, 30 projector, 31 projection screen, 40 optical loupe (first enlargement means), 50 photographing display means (second enlargement means) , 52 camera, 54 display, 59 beam splitter, W work

Claims (10)

A machine tool with a projector that can magnify and project a workpiece,
a first enlarging means for enlarging a part of the projection image projected on the projection screen of the projector;
a second enlarging means for displaying a part of the projected image within the enlarging area of the first enlarging means at a magnification higher than that of the first enlarging means ,
The first enlarging means is configured to be movable on the projection screen,
The second enlarging means is configured to be movable on the projection screen integrally with the first enlarging means.
A machine tool with a projector, characterized by: 2. The machine tool with a projector according to claim 1, wherein said first magnifying means comprises an optical loupe spaced apart to face said projection screen. 3. The machine tool with a projector according to claim 1, wherein said second enlarging means comprises a camera for capturing a part of said projected image. A machine tool with a projector that can magnify and project a workpiece,
a first enlarging means for enlarging a part of the projection image projected on the projection screen of the projector;
a second enlarging means for displaying a part of the projected image within the enlarging area of the first enlarging means at a magnification higher than that of the first enlarging means;
a beam splitter provided between the projection screen and the first magnifying means;
with
The second enlarging means is configured to be able to photograph a part of the projected image via the beam splitter.
A machine tool with a projector, characterized by: the first magnifying means comprises an optical loupe spaced apart to face the projection screen;
5. The machine tool with a projector according to claim 4 , wherein the beam splitter is provided between the projection screen and the optical loupe. A machine tool with a projector that can magnify and project a workpiece,
a first enlarging means for enlarging a part of the projection image projected on the projection screen of the projector;
a second enlarging means for displaying a part of the projected image within the enlarging area of the first enlarging means at a magnification higher than that of the first enlarging means;
with
The first enlarging means is a tablet terminal having a camera function capable of photographing a part of the projection image projected onto the projection screen and a display function of displaying the photographed image photographed by the camera function,
The second enlarging means is configured to acquire the photographed image from the first enlarging means and display a part of the photographed image at a higher magnification than the photographed image displayed by the first enlarging means. A machine tool with a projector , characterized by: The second enlarging means comprises a display for displaying a portion of the projected image within the enlarging region of the first enlarging means at a magnification higher than that of the first enlarging means, and the desired shape of the workpiece and the display The projection according to any one of claims 1 to 6, wherein the image data of the desired shape can be displayed on the display so that the projected image on the top and the above can be visually recognized at the same time. Machine tool with machine. The second enlarging means is configured to be able to move the projected image on the display, and moves the image data of the desired shape on the display in accordance with the movement of the projected image. 8. The machine tool with a projector according to claim 7, which is configured to be able to 2. A chart paper on which the desired shape is drawn can be arranged so that the desired shape of the workpiece and the projected image on the projection screen can be visually recognized at the same time. 6. The machine tool with a projector according to any one of 6. The machine tool with a projector according to any one of claims 1 to 9, wherein the machine tool is an optical profiling grinder having a grindstone capable of grinding a workpiece.

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