JP6612060B2 - Artificial tooth production system - Google Patents

Description

  The present invention relates to an artificial tooth production system including an artificial tooth production device for producing artificial teeth.

  2. Description of the Related Art Conventionally, an artificial tooth production apparatus that produces artificial teeth by cutting a ceramic material, a resin material, or the like into a desired shape is known.

  For example, Patent Document 1 discloses an artificial tooth manufacturing apparatus provided with a processing tool held by a spindle. A compressor for supplying compressed air to the spindle is connected to such an artificial tooth manufacturing apparatus. This compressed air is supplied to the spindle when the processing tool is changed. Specifically, a claw portion that can be opened and closed and grips the upper portion of the processing tool is provided at the tip of the spindle. When the compressed air is supplied to the spindle, the claw portion opens. Thereby, the processing tool can be gripped by the spindle. The compressor may be connected to a plurality of artificial tooth preparation devices. In this case, compressed air is supplied to the spindles of the plurality of artificial tooth producing devices.

JP2013-121466A

  When the timings for exchanging the processing tools overlap in a plurality of artificial tooth preparation devices, the compressor needs to supply compressed air to the plurality of artificial tooth preparation devices. However, if the tank capacity of the compressor is small, the amount of compressed air is insufficient, and the artificial tooth preparation device stops. In order to avoid this, it may be possible to use a large compressor, but the cost increases. In addition, there is a problem that it is difficult to secure a space for arranging a large compressor in a small-scale business establishment.

  The present invention has been made in view of such a point, and an object thereof is to provide an artificial tooth preparation system in which an artificial tooth preparation device does not stop due to lack of compressed air without newly providing a large compressor. That is.

  The artificial tooth production system according to the present invention is an artificial tooth production system for producing an artificial tooth by cutting a workpiece, and grips a plurality of rod-like machining tools for cutting the workpiece and an upper portion of the machining tool. A spindle that is provided with compressed air and opened at the lower end, rotates the processing tool around the axis of the processing tool, and performs three-dimensional movement; and rotation and movement of the spindle and replacement of the processing tool A plurality of artificial tooth preparation devices having a control unit for controlling the opening and closing of the gripping unit, and supplying the compressed air to the spindle when the spindle grips the processing tool, and after the spindle grips the processing tool A compressor that stops the supply of compressed air, and a supervisor that recognizes whether or not the processing tool has been exchanged in any of the artificial tooth preparation devices. And when the monitoring device recognizes that the processing tool has been replaced in another artificial tooth preparation device other than the artificial tooth preparation device provided with the control unit, the control unit The tooth preparation device is configured not to replace the processing tool.

  In the artificial tooth production system according to the present invention, when the monitoring device recognizes that the machining tool is being exchanged in another artificial tooth production device other than the artificial tooth production device to be exchanged. The artificial tooth preparation device that attempts to replace the processing tool does not replace the processing tool. Thereby, it is possible to prevent the processing tools from being exchanged at the same timing in the plurality of artificial tooth production apparatuses. Accordingly, it is possible to prevent a situation in which the amount of compressed air is insufficient and the artificial tooth preparation device is stopped without newly providing a large compressor.

  According to a preferred aspect of the present invention, the control unit communicates an inquiry to the monitoring device as to whether or not the processing tool is actually being replaced in another artificial tooth preparation device, and the monitoring device responds to the inquiry. Thus, when the machining tool is not actually exchanged in another artificial tooth production apparatus, a first notification that the machining tool exchange may be started is given to the control unit.

  According to the said aspect, the control part of the artificial tooth preparation apparatus which is going to replace a processing tool can wait for the 1st notification from a monitoring apparatus, and can perform the replacement | exchange of the said processing tool. Thereby, the said control part can know that the replacement | exchange of a processing tool is not performed in the other artificial tooth preparation apparatus, ie, the timing which can replace a processing tool in the said artificial tooth preparation apparatus.

  According to another preferable aspect of the present invention, the control unit, after receiving the first notification and exchanging the machining tool, gives the monitoring device a second notification that the machining tool has been exchanged. It is configured.

  According to the above aspect, since the second notification is transmitted to the monitoring device by the control unit of the artificial tooth production device after the replacement of the processing tool, the monitoring device can know that the replacement of the processing tool has ended. . Thereby, the monitoring apparatus can give a 1st notification to the said artificial tooth preparation apparatus immediately, when there exists an inquiry from another artificial tooth preparation apparatus.

  According to another preferable aspect of the present invention, the monitoring device receives the second notification from the control unit and receives the first notification from the other artificial tooth preparation device when there is an inquiry from the other artificial tooth preparation device. Configured to give notifications.

  According to the above aspect, the monitoring device can immediately give the first notification to the control unit of another artificial tooth preparation device after receiving the second notification from the artificial tooth preparation device whose replacement of the processing tool has been completed. . As a result, another artificial tooth preparation device that is to replace the processing tool can replace the processing tool without leaving a long time from the time when the replacement of the processing tool is completed in the artificial tooth preparation device. . Therefore, the processing time can be shortened.

  According to another preferable aspect of the present invention, the artificial tooth preparation device is configured to temporarily stop the rotation and movement of the spindle in response to a command from the monitoring device and to inquire the monitoring device.

  According to the above aspect, the control unit can make an inquiry by recognizing the replacement timing of the processing tool by the command from the monitoring device.

  According to another preferable aspect of the present invention, the control unit is configured to release the temporary stop and replace the machining tool when the control unit makes an inquiry and receives the first notification.

  According to the above aspect, when the first notification is received, the machining tool can be quickly replaced.

  According to still another preferred aspect of the present invention, the replacement of the processing tool includes a process of opening the gripping portion of the spindle by supplying compressed air to the spindle from the compressor, and the spindle when the compressed air is not supplied to the spindle. Does not include the rotation and movement processing.

  According to the above aspect, the processing when the compressed air is not supplied to the spindle, for example, the processing such as the movement of the spindle to a predetermined position after the spindle finishes gripping the new processing tool, It is not included in the exchange process. Thus, after the spindle has finished gripping the new processing tool, that is, if the supply of compressed air has already been completed, the monitoring device determines that the processing tool is not actually replaced. Can do. Thereby, the monitoring apparatus can give a 1st notification rapidly according to the inquiry from another artificial tooth preparation apparatus.

  According to another preferable aspect of the present invention, the total amount of compressed air required when exchanging the processing tool in the plurality of artificial tooth producing apparatuses is larger than the capacity of the compressor.

  According to the above aspect, in the artificial tooth preparation system in which the total amount of compressed air required at the same timing in the plurality of artificial tooth preparation apparatuses is larger than the capacity of the compressor, the compressed air can be used without newly providing a large compressor. It is possible to prevent a situation where the amount of the tooth is insufficient and the artificial tooth preparation device stops.

  According to the present invention, it is possible to provide an artificial tooth production system in which an artificial tooth production device does not stop due to lack of compressed air without newly providing a large compressor.

It is the schematic which shows the structure of the artificial tooth production system which concerns on one Embodiment of this invention. It is a perspective view which shows the artificial tooth production apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the artificial tooth preparation apparatus of the state which opened the front cover of FIG. It is a perspective view which shows the holding | maintenance part and tool magazine which concern on one Embodiment of this invention. It is a front view which shows the spindle which concerns on one Embodiment of this invention. It is sectional drawing which shows the spindle which concerns on one Embodiment of this invention. It is a flowchart of the tool exchange process in the artificial tooth production apparatus which concerns on one Embodiment of this invention. It is a flowchart of the tool exchange process in the monitoring apparatus which concerns on one Embodiment of this invention.

  Hereinafter, an artificial tooth production system 100 according to an embodiment of the present invention will be described. As shown in FIG. 1, the artificial tooth production system 100 includes a plurality of artificial tooth production devices 1, a monitoring device 101, and a compressor 102. In FIG. 1, three artificial tooth preparation apparatuses 1a, 1b, and 1c are illustrated as a plurality of artificial tooth preparation apparatuses 1. However, as long as there are a plurality of artificial tooth preparation apparatuses 1, two or four or more artificial tooth preparation apparatuses 1 may be used. The configurations of the artificial tooth production devices 1a, 1b, and 1c are the same.

  The artificial tooth preparation device 1a and the monitoring device 101 are connected by a line L1. The artificial tooth preparation device 1b and the monitoring device 101 are connected by a line L2. The artificial tooth preparation device 1c and the monitoring device 101 are connected by a line L3. Note that the communication is not limited to wired communication using the lines L1 to L3, and wireless communication is also possible. The artificial tooth preparation device 1a and the compressor 102 are connected by a supply pipe P1. The artificial tooth preparation device 1b and the compressor 102 are connected by a supply pipe P2. The artificial tooth preparation device 1c and the compressor 102 are connected by a supply pipe P3. The monitoring device 101 monitors the artificial tooth production device 1. Specifically, the monitoring device 101 determines whether or not the processing tool is exchanged (hereinafter sometimes referred to as tool exchange) in any one of the artificial tooth production devices 1a, 1b, and 1c. Perform detection. And the monitoring apparatus 101 prevents the tool replacement | exchange in the artificial tooth preparation apparatuses 1a, 1b, and 1c at the same timing. When the tool is exchanged in any one of the artificial tooth production apparatuses 1a, 1b, and 1c, the monitoring apparatus 101 is a recording unit (not shown) (for example, a memory or a hard disk) of the monitoring apparatus 101. ) Is flagged in the database flag area, that is, “present” is recorded. On the other hand, the monitoring device 101 does not set a flag in the flag area when the tool replacement is not performed in any of the artificial tooth preparation devices 1a, 1b, and 1c. Record. The monitoring apparatus 101 sends a tool replacement command to the control unit 50 of the artificial tooth preparation apparatus 1 at a predetermined timing. In this case, for example, the monitoring apparatus 101 sends a tool replacement command when the rough cutting is completed and precision cutting is performed. The compressor 102 supplies compressed air to the artificial tooth production apparatus 1. Control of the supply of compressed air to the artificial tooth preparation device 1 by the compressor 102 is performed by the monitoring device 101. Compressed air is supplied to the artificial tooth preparation device 1a through a supply pipe P1. Compressed air is supplied to the artificial tooth preparation device 1b through the supply pipe P2. Compressed air is supplied to the artificial tooth preparation device 1c through a supply pipe P3. The above-mentioned compressed air is necessary when changing tools. The total amount of compressed air required when changing tools at the same timing in the plurality of artificial tooth production apparatuses 1 is larger than the capacity of the compressor 102.

  Next, the artificial tooth production apparatus 1 will be described. As shown in FIG. 2, the axes orthogonal to each other are the X axis, the Y axis, and the Z axis, and the artificial tooth preparation device 1 according to this embodiment is placed on a plane constituted by the X axis and the Y axis. And Hereinafter, the left side and the right side are the left side and the right side when the artificial tooth preparation device 1 is viewed toward the front cover 7 in FIG. 2. Further, when the artificial tooth preparation device 1 is viewed toward the front cover 7 of FIG. In the figure, the left side is L, the right side is R, the front is F, the rear is Re, the upper is U, and the lower is D. However, these are only directions for convenience of explanation, and do not limit the installation mode of the artificial tooth preparation device 1 at all. In addition, if it is the artificial tooth preparation apparatus 1 which has a spindle which performs tool replacement | exchange using compressed air, the shape of the said artificial tooth preparation apparatus 1 will not be specifically limited to the thing of FIG.

  As shown in FIG. 2, the artificial tooth preparation device 1 is formed in a box shape. Specifically, the artificial tooth preparation device 1 includes a case 10 having a base portion 2, a left outer wall portion 3, a right outer wall portion 4, a top surface portion 5 and a rear surface portion 6, and a front cover 7. The front of the case 10 is opened. The left outer wall portion 3 extends upward at the left end of the base portion 2. The right outer wall portion 4 extends upward at the right end of the base portion 2. The rear surface portion 6 extends upward at the rear end of the base portion 2. The rear surface portion 6 is connected to the rear end of the left outer wall portion 3 and the rear end of the right outer wall portion 4. The top surface portion 5 is connected to the upper end of the left outer wall portion 3, the upper end of the right outer wall portion 4, and the upper end of the rear surface portion 6. An inner space 8 is formed by the base portion 2, the left outer wall portion 3, the right outer wall portion 4, the top surface portion 5, and the rear surface portion 6. The internal space 8 is a processing area where cutting is performed on the artificial tooth material which is a workpiece (not shown). The front cover 7 slides in the vertical direction at the front end of the left outer wall portion 3 and the front end of the right outer wall portion 4. The artificial tooth production apparatus 1 includes a control unit 50. The control unit 50 can be realized by a CPU (Central Processing Unit) provided in a known personal computer or general-purpose computer.

  As shown in FIG. 3, when the front cover 7 slides upward, the internal space 8 communicates with the external space. The front cover 7 is provided with a window portion 7a. An operator can visually recognize the internal space 8 from the window portion 7a.

  Next, a holding unit that holds a workpiece and a tool magazine that stores a plurality of processing tools will be described. As shown in FIG. 4, the internal space 8 (see FIG. 3) is formed in the shape of a box, a holding part 25 that holds a workpiece 24 that is a dental material, a support part 31 connected to the holding part 25, and a box. A tool magazine 32 for accommodating a plurality of processing tools 23 is provided. The workpiece 24 is formed in a disc shape. The workpiece 24 is held by a holding portion 25 formed in a semicircular arc shape. A first rotating shaft (not shown) is connected to the front portion of the holding portion 25, and a second rotating shaft (not shown) is connected to the rear portion of the holding portion 25. The first rotation shaft is connected to a drive unit 27 provided in front of the holding unit 25. The drive unit 27 is, for example, a motor. The drive unit 27 rotates the first rotation shaft in the direction T1 around the X axis. In such a configuration, when the first rotating shaft is rotated in the direction T1 by the driving unit 27, the holding unit 25 is rotated in the direction T1. Thereby, the workpiece 24 can be rotated in the direction T1. Moreover, the support part 31 moves to the front-back direction by the drive part which is not shown in figure. Thereby, the workpiece 24 can be moved in the front-rear direction via the holding portion 25. Further, the support portion 31 is rotated in a direction T2 around the Y axis by a drive portion (not shown). Thereby, the workpiece 24 can be rotated in the direction T <b> 2 via the holding portion 25.

  The support portion 31 is formed in an L shape. The support portion 31 includes a first plate portion 31a formed extending in the X-axis direction and a second plate portion 31b formed extending in the Y-axis direction. The second plate part 31b of the support part 31 supports the second rotation shaft. A tool magazine 32 is fixed to the first plate portion 31 a of the support portion 31. A hole (not shown) is formed on the upper surface of the tool magazine 32, and the machining tool 23 is inserted into the hole with the upper portion 23a (see FIG. 5) of the machining tool 23 exposed. In addition, when exchanging tools, the upper part 23a of the processing tool 23 is gripped by a spindle described later.

  Next, the spindle will be described. As shown in FIG. 5, a spindle 33 is provided in the internal space 8 (see FIG. 3) so as to extend in the vertical direction. The spindle 33 is moved in the horizontal direction and the vertical direction by a drive unit (not shown). The spindle 33 includes a holding portion 61 that holds the housing 60 and the upper portion 23 a of the processing tool 23. When exchanging the processing tool 23, the spindle 33 returns the currently held processing tool 23 to a predetermined position in the tool magazine 32. Thereafter, the spindle 33 moves so that the gripping portion 61 is positioned directly above the upper portion 23a of the processing tool 23 to be newly gripped. Then, the spindle 33 moves downward toward the upper part 23a of the processing tool 23 with the gripping part 61 open, and grips the upper part 23a of the processing tool 23 by closing the gripping part 61. Thereafter, the spindle 33 moves toward the workpiece 24 (see FIG. 4) in order to start cutting.

  As shown in FIG. 6, a space R is provided in the housing 60 of the spindle 33. The housing 60 is provided with a compressed air introduction path 62 that is formed in an L shape and guides compressed air from the compressor 102 (see FIG. 1) to the space R. The compressed air is introduced from the inlet 62 a of the compressed air introduction path 62 and is supplied to the space R through the compressed air introduction path 62. A cylindrical cylinder 63 is provided in the space R of the housing 60 so as to be movable in the vertical direction. A spindle shaft 64 extending in the vertical direction is inserted into the hole of the cylinder 63 coaxially with the cylinder 63. The cylinder 63 includes a first portion 63a and a second portion 63b having an inner peripheral surface that is thinner than the first portion 63a and located outside the inner peripheral surface of the first portion 63a. A step 63c is formed at the boundary between the first portion 63a and the second portion 63b. The spindle shaft 64 is formed with a flange portion 64a positioned between the inner peripheral surface of the first portion 63a of the cylinder 63 and the inner peripheral surface of the second portion 63b. Two springs 65 and 66 are connected to the lower surface of the second portion 63 b of the cylinder 63. Thereby, the cylinder 63 is urged upward. In FIG. 6, the processing tool 23 is not shown.

  In the housing 60, an insertion hole 60a extending in the vertical direction is formed below the space R. A spindle rod 67 is inserted through the insertion hole 60a. The spindle rod 67 is movable in the vertical direction. The spindle rod 67 is connected to the spindle shaft 64 by a connecting pin 69. A concave portion 64 b that accommodates the upper portion of the spindle rod 67 is formed in the lower portion of the spindle shaft 64. A spring 68 is connected to the lower surface of the spindle shaft 64. Thereby, the spindle shaft 64 is urged upward. The spindle rod 67 is formed with a gripping hole 67 a coaxial with the spindle rod 67. The processing tool 23 (see FIG. 5) is inserted into the grip hole 67a. A tapered portion 67b having a larger diameter as it goes downward is formed at the lower portion of the peripheral wall of the grip hole portion 67a. At the lower end of the spindle rod 67, a claw-shaped gripping portion 61 that grips the processing tool 23 is provided. The grip portion 61 is formed with an inclined portion 61a. The inclination angle of the inclined part 61a of the grip part 61 and the inclination angle of the taper part 67b are substantially equal. When the inclined portion 61a of the grip portion 61 is engaged with the taper portion 67b, the distal end portion of the grip portion 61 is tightened. Thereby, the processing tool 23 is gripped. On the other hand, when the spindle rod 67 moves downward and the inclined portion 61a of the grip portion 61 is disengaged from the taper portion 67b, the tightening of the tip portion of the grip portion 61 is released. Thereby, the gripping of the processing tool 23 by the gripper 61 is released. In such a configuration, when compressed air from the compressor 102 (see FIG. 1) is supplied to the space R of the housing 60 via the compressed air introduction path 62, the cylinder 63 resists the bias of the springs 65 and 66. Move downward. As a result, the stepped portion 63 c of the cylinder 63 contacts the flange portion 64 a of the spindle shaft 64, so that the spindle shaft 64 moves downward against the bias of the spring 68. Therefore, the spindle rod 67 connected to the spindle shaft 64 by the connecting pin 69 also moves downward. As a result, the grip of the processing tool 23 by the grip portion 61 is released as described above. When gripping a new processing tool 23, the spindle rod 67 is moved downward by supplying compressed air to open the gripping portion 61, and the spindle 33 is lowered to insert the processing tool 23 into the gripping hole 67a. To do. When the supply of compressed air is stopped in this state, the cylinder 63 moves upward by the urging of the springs 65 and 66, so that the spindle shaft 64 also moves upward by the urging of the spring 68. Therefore, the spindle rod 67 moves upward. As a result, the inclined portion 61 a of the grip portion 61 is engaged with the taper portion 67 b, whereby the new processing tool 23 is gripped by the grip portion 61.

  Next, the processing in the artificial tooth preparation device 1 and the processing in the monitoring device 101 at the time of tool replacement will be described with reference to flowcharts. In the present embodiment, the processing tool 23 is replaced by the spindle 33 when, for example, rough cutting is finished and precision cutting is performed. When the processing shifts from rough cutting to precision cutting, the machining tool 23 with a larger diameter is replaced with a machining tool 23 with a smaller diameter. The tool replacement process includes a process when the compressed air is not supplied to the spindle 33, for example, a movement or rotation of the spindle 33 to a predetermined position after the spindle 33 finishes gripping the new processing tool 23. This processing is not included.

  In the following, as an example, a predetermined process (for example, rough cutting) is performed by the processing tool 23 in the artificial tooth preparation apparatus 1a (see FIG. 1), and from this state, a new processing tool 23 is added to the artificial tooth preparation apparatus 1a. The case of exchange will be described. As shown in FIG. 7, first, the control unit 50 (see FIG. 1) of the artificial tooth preparation device 1a determines whether or not a tool change command has been received from the monitoring device 101 (see FIG. 1) (step S1). ). If a tool change command has not been received (No in step S1), the control unit 50 performs the current process until a tool change command is received.

  When the tool change command is received (Yes in step S1), the control unit 50 temporarily stops the rotation and movement of the spindle 33 (see FIG. 5) (step S2). Then, the control unit 50 monitors whether or not tool replacement is actually performed in another artificial tooth preparation device 1, that is, in the artificial tooth preparation device 1b or the artificial tooth preparation device 1c (see FIG. 1 respectively). Inquiry communication (hereinafter simply referred to as inquiry) is performed (see FIG. 1) (step S3). Thereafter, when the monitoring apparatus 101 receives a first notification indicating that the tool replacement may be started (Yes in step S4), the control unit 50 releases the temporary stop and starts the tool replacement ( Step S5). In the tool replacement process in step S5, the processing tool 33 held by the spindle 33 is returned to the original position of the tool magazine 32 (see FIG. 4), and a new processing tool 33 is held by the spindle 33. When there is no first notification from the monitoring apparatus 101 (No in step S4), the control unit 50 stands by until there is a first notification. In addition, the case where there is no 1st notification means that tool exchange is actually performed in the other artificial tooth preparation apparatus 1b or the artificial tooth preparation apparatus 1c.

  Next, when the tool replacement is completed (Yes in step S6), the control unit 50 transmits a second notification indicating that the replacement of the processing tool 23 is completed to the monitoring apparatus 101 (step S7). On the other hand, when the tool replacement is not completed (No in step S6), the control unit 50 continues the tool replacement. After transmitting the second notification to the monitoring device 101, the control unit 50 continues the cutting with the machining tool 23 after replacement (step S8).

  Next, a process at the time of tool replacement of the monitoring apparatus 101 will be described. As shown in FIG. 8, the monitoring apparatus 101 determines whether or not an inquiry has been received from the artificial tooth preparation apparatus 1a (step S21). If an inquiry has been received (Yes in step S21), it is determined whether or not the flag in the flag area is “present” (step S22). When the flag is in the “present” state (Yes in step S22), that is, when tool replacement is performed in the artificial tooth preparation device 1b or the artificial tooth preparation device 1c, the monitoring device 101 indicates the end of tool replacement. It is determined whether or not the second notification is received from the artificial tooth preparation device 1b or the artificial tooth preparation device 1c (step S23). When the second notification is received (Yes in step S23), the monitoring apparatus 101 switches the flag in the flag area to “none” (step S24). On the other hand, when the second notification has not been received (No in step S23), the monitoring apparatus 101 stands by until the second notification is received.

  After the process of step S24 or when the flag is not in the “present” state (No in step S22), the monitoring apparatus 101 transmits a first notification indicating tool replacement permission to the artificial tooth preparation apparatus 1a. (Step S25). Thereafter, the monitoring apparatus 101 switches the flag in the flag area to “present” (step S26).

  Next, the monitoring apparatus 101 determines whether or not a second notification has been received from the artificial tooth preparation apparatus 1a (step S27). When the second notification is received (Yes in step S27), the monitoring apparatus 101 switches the flag in the flag area to “none”, and then returns to the process of step S21. On the other hand, when the second notification has not been received (No in step S27), the monitoring apparatus 101 stands by until a second notification is received from the artificial tooth preparation device 1a.

  As described above, according to the present embodiment, other artificial tooth preparation devices 1 (except for the artificial tooth preparation device 1 (for example, the artificial tooth preparation device 1b or the artificial tooth preparation device 1c) to replace the processing tool 23 ( For example, when the monitoring apparatus 101 recognizes that the tool replacement is being performed in the artificial tooth manufacturing apparatus 1a), the artificial tooth manufacturing apparatus 1b or the artificial tooth manufacturing apparatus 1c does not perform the tool replacement. Thereby, it is possible to prevent the tools from being changed at the same timing in the plurality of artificial tooth production apparatuses 1. Thereby, without providing a large sized compressor, the situation where the quantity of compressed air runs short and the artificial tooth preparation apparatus 1 stops can be prevented.

  Further, according to the present embodiment, the monitoring device 101 responds to an inquiry from the artificial tooth preparation device 1 (for example, the artificial tooth preparation device 1b or the artificial tooth preparation device 1c) that is about to change the tool, to another artificial tooth. When the tool replacement is not actually performed in the manufacturing apparatus 1 (for example, the artificial tooth manufacturing apparatus 1a), the first notification that the tool replacement may be started is sent to the artificial tooth manufacturing apparatus 1 that is about to perform the tool replacement. This is given to the control unit 50. Thereby, the control part 50 of the artificial tooth preparation apparatus 1 which is going to perform tool replacement | exchange can wait for the 1st notification from the monitoring apparatus 101, and can perform tool replacement | exchange. Thereby, the control part 50 can know that the tool replacement | exchange is not performed in the other artificial tooth production apparatus 1, ie, the timing which can perform a tool exchange in its own artificial tooth production apparatus 1. FIG.

  Further, according to the present embodiment, the control unit 50 of the artificial tooth preparation device 1 (for example, the artificial tooth preparation device 1a) that has completed the tool replacement transmits a second notification that the tool replacement has been completed to the monitoring device 101. Therefore, the monitoring apparatus 101 can know that the tool replacement has been completed. Thereby, the monitoring apparatus 101 can stand by. That is, the monitoring device 101 immediately gives a first notification to the artificial tooth preparation device 1 when there is an inquiry from another artificial tooth preparation device 1 (for example, the artificial tooth preparation device 1b or the artificial tooth preparation device 1c). be able to.

  Moreover, according to this embodiment, the monitoring apparatus 101 receives the second notification when an inquiry is made from another artificial tooth preparation apparatus 1 (for example, the artificial tooth preparation apparatus 1b or the artificial tooth preparation apparatus 1c). The first notification is given to the control unit 50 of the other artificial tooth production apparatus 1. Thereby, the monitoring apparatus 101 can give a 1st notification to the control part 50 of the other artificial tooth preparation apparatus 1 immediately after receiving the 2nd notification. Thereby, the other artificial tooth production apparatus 1 can perform tool exchange without leaving a long time from the time of completion | finish of tool exchange in another artificial tooth production apparatus 1. FIG. Therefore, the processing time can be shortened.

  Further, according to the present embodiment, upon receiving a tool change command from the monitoring apparatus 101, the control unit 50 temporarily stops the rotation and movement of the spindle 33 and makes an inquiry to the monitoring apparatus 101. As a result, the control unit 50 can make an inquiry by recognizing the timing of tool replacement by the command from the monitoring apparatus 101.

  Further, according to the present embodiment, when receiving the first notification, the control unit 50 controls the opening / closing operation of the gripping unit 61 of the spindle 33 in order to change the tool after releasing the temporary stop. Thereby, after receiving a 1st notification, tool exchange can be performed rapidly.

  Further, according to the present embodiment, processing when compressed air is not supplied to the spindle 33, for example, movement of the spindle 33 to a predetermined position after the spindle 33 finishes gripping the new processing tool 23, etc. This process is not included in the tool change process. As a result, if the spindle 33 has finished gripping the new processing tool 23, that is, if the supply of compressed air has already ended, the monitoring apparatus 101 determines that no tool replacement has actually been performed. be able to. Thereby, the monitoring apparatus 101 can give a 1st notification rapidly with respect to the control part 50 of the artificial tooth preparation apparatus 1 which is going to replace a tool according to an inquiry.

  Further, according to the present embodiment, the total amount of compressed air required when changing tools at the same timing in the plurality of artificial tooth production apparatuses 1 is larger than the capacity of the compressor 102. Thereby, in the artificial tooth preparation system 100 in which the total amount of compressed air required at the same timing in the plurality of artificial tooth preparation apparatuses 1 is larger than the capacity of the compressor 102, the compressed air can be used without newly providing a large compressor. It is possible to prevent a situation in which the amount of this is insufficient and the artificial tooth preparation device 1 stops.

  In the above-described embodiment, the control unit 50 of the artificial tooth preparation device 1 attempting to replace the tool makes an inquiry to the monitoring device 101. However, the present invention is not limited to this. The monitoring device 101 may voluntarily give a notification that the tool may be changed to the control unit 50 of the artificial tooth preparation device 1. However, even in this case, the monitoring apparatus 101 gives the notification so that tool exchanges do not overlap at the same timing.

  In the above embodiment, when the replacement of the processing tool 23 is completed, a second notification indicating that the tool replacement has been completed is transmitted to the monitoring apparatus 101, so that the monitoring apparatus 101 recognizes that the tool replacement has been completed. However, it is not limited to this. The monitoring device 101 may recognize that the tool replacement has been completed by recognizing that the supply of compressed air to the artificial tooth preparation device 1 of the compressor 102 has been completed.

  In the above embodiment, when the control unit 50 receives a tool replacement instruction from the monitoring device 101, the control unit 50 temporarily stops the rotation and movement of the spindle 33 and makes the above-mentioned inquiry to the monitoring device 101. It is not limited. The temporary stop of the spindle 33 and the inquiry to the monitoring device 101 may be simultaneous.

  In the above embodiment, the holding unit 25 is moved three-dimensionally in the XYZ coordinate system. However, the present invention is not limited to this. For example, a polar coordinate system may be adopted as long as the holding unit 25 can be moved three-dimensionally.

  The terms and expressions used herein are used for explanation and are not used for limited interpretation. It should be recognized that any equivalents of the features shown and described herein are not excluded and that various modifications within the claimed scope of the invention are permitted. The present invention can be embodied in many different forms. This disclosure should be regarded as providing embodiments of the principles of the invention. The embodiments are described herein with the understanding that the embodiments are not intended to limit the invention to the preferred embodiments described and / or illustrated herein. It is not limited to the embodiment described here. The present invention also encompasses any embodiment that includes equivalent elements, modifications, deletions, combinations, improvements and / or changes that may be recognized by those skilled in the art based on this disclosure. Claim limitations should be construed broadly based on the terms used in the claims and should not be limited to the embodiments described herein or in the process of this application.

DESCRIPTION OF SYMBOLS 1 Artificial tooth preparation apparatus 23 Processing tool 23a Upper part of processing tool 32 Tool magazine 33 Spindle 50 Control part 61 Spindle holding part 100 Artificial tooth preparation system 101 Monitoring apparatus 102 Compressor

Claims (7)

An artificial tooth production system for producing artificial teeth by cutting a workpiece,
A plurality of rod-shaped processing tools for cutting the workpiece, and a gripping portion that grips an upper portion of the processing tool and opens when supplied with compressed air, are provided around the axis of the processing tool. A plurality of artificial tooth producing devices having a spindle that is rotated three-dimensionally and a controller that controls rotation and movement of the spindle and opening and closing of the gripping part when exchanging the processing tool;
A compressor that supplies the compressed air to the spindle when the spindle grips the processing tool, and stops the supply of the compressed air after the spindle grips the processing tool;
A monitoring device for recognizing whether or not the processing tool is exchanged in any one of the plurality of artificial tooth production devices,
The total amount of the compressed air required when replacing the processing tool at the same timing in the plurality of artificial tooth production devices is larger than the capacity of the compressor,
The controller generates the artificial tooth when the monitoring device recognizes that the processing tool has been replaced in another artificial tooth manufacturing apparatus other than the artificial tooth manufacturing apparatus provided with the control unit. An artificial tooth production system configured so as not to exchange the processing tool in an apparatus. The control unit communicates an inquiry to the monitoring device as to whether or not the processing tool is actually being replaced in the other artificial tooth preparation device,
In response to the inquiry, the monitoring device sends a first notification that the replacement of the processing tool may be started when the processing tool is not actually replaced in the other artificial tooth preparation device. The artificial tooth production system according to claim 1, wherein the artificial tooth production system is configured to be provided to the control unit.   The said control part is comprised so that the 2nd notification that the replacement | exchange of the said processing tool may be completed will be given to the said monitoring apparatus after replacing | exchanging the said processing tool in response to the said 1st notification. 2. The artificial tooth production system according to 2.   The monitoring device is configured to give the first notification to the other artificial tooth production device after receiving the second notification from the control unit when the inquiry is received from the other artificial tooth production device. The artificial tooth production system according to claim 3, which is configured.   The said artificial tooth production apparatus is comprised so that the rotation and movement of the said spindle may be suspended according to the command from the said monitoring apparatus, and the said inquiry may be performed to the said monitoring apparatus. The artificial tooth production system described in 1.   The artificial tooth production according to claim 5, wherein the control unit is configured to release the temporary stop and replace the processing tool when the inquiry is received and the first notification is received. system. The replacement of the processing tool includes a process of opening the gripping portion of the spindle when the compressed air is supplied from the compressor to the spindle, and the spindle rotates and moves when the compressed air is not supplied to the spindle. The artificial tooth production system of any one of Claims 1-6 which does not include the process of.

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