JP6497108B2 - Control system - Google Patents

Description

  The present invention relates to a control system.

  In a machine tool, for example, the position of each part may be stored after parts replacement. For example, in a grinding machine, after changing a grindstone or a truer, a grindstone shape, a truer shape, and a detection pin position are stored. There is a type of grinder that manually performs such position storage processing for cost reduction. In the case of this type of grinding machine, the operator (operator) manually contacts either the grindstone, the master plate, the detection pin, or the truer, and the operator operates the predetermined position storage button in that state. The position of the grindstone at that time is stored, and the grindstone shape, the truer shape, and the detection pin position are calculated and stored from the position information.

JP-A-5-337825

  In the manual position memory processing as described above in the grinding machine, the operator touches the grindstone with the master plate, the detection pin or the truer and operates the position memory button, and then the grindstone is detected as the master plate. Must be moved manually in a direction away from the pin or truer. However, in manual operation, there is a possibility that the grindstone and the master plate, the detection pin, or the truer may be moved in the direction of pressing. If the grindstone is brought into contact with the master plate, the detection pin, or the truer, the grindstone, the truer, the detection pin, or the like may be damaged.

  Therefore, in manual position storage processing, development of a technique that can appropriately avoid moving the grindstone and the master plate, the detection pin, or the truer in the direction in which they are erroneously pressed is required. For example, in the above-mentioned Patent Document 1, although the current position detection process after the grinding wheel replacement is described, the above-described problem is not recognized. This problem is not limited to a grinding machine, and is a problem common to all machine tools that perform position memory processing manually.

  Therefore, in view of the above, the problem to be solved by the present invention is to provide a control system that controls so that a contacted part is not moved in the direction of being erroneously pressed in a manual position storage process in a machine tool. is there.

In order to solve the above-described problems, a control system according to the present invention is a machine tool control system including a movable unit that can be moved by an operator's operation, and an operation unit that receives an operation from the operator, and the operation unit receives the operation unit. Command the storage of position information according to the contact position between the movable part and the contact object in a state where the movable part is moved by the operation and is in contact with a predetermined contact object provided in the machine tool. An input unit that receives a command input from an operator, a prohibition unit that prohibits movement of the movable unit in a direction of pressing the contact object after the input unit receives the command input, and the prohibition unit When the movable part is separated from the contact object by a predetermined distance by the operation received by the operation part in a state where the movement of the movable part in the direction of pressing the contact object is prohibited. Equipped with a stop for stopping the operation of prohibiting the movement of the movable portion in a direction that presses the contact object by the prohibition unit.

  According to the present invention, since the input unit includes the prohibition unit that prohibits the movement of the movable unit in the direction of pressing the contact object after receiving the position storage command input, the movable unit and the contact object after the position storage are provided. Even if operated in the pressing direction, the pressing is appropriately avoided. Therefore, the breakage of the movable part and the contact object in the machine tool is appropriately avoided, which contributes to productivity improvement.

It is a figure showing one embodiment of a control system concerning the present invention. It is a figure which shows the 1st example of a position memory process. It is a figure which shows the 2nd example of a position memory process. It is a figure which shows the 3rd example of a position memory process. It is a figure which shows the 4th example of a position memory process. It is a figure which shows the 5th example of a position memory process. It is a figure which shows the 6th example of a position memory process. It is a flowchart which shows the example of the process sequence which concerns on this invention. It is a figure which shows the example of the automatic adjustment of a magnification.

(1. Configuration of grinding machine)
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a grinding machine 1 (corresponding to a machine tool according to the present invention) as an example of a control system according to the present invention. The grinding machine 1 includes a table 3, a grindstone table 4, a truing device 5, a detection pin 6, and a master plate 7 on a bed 2, and a control unit 8 (corresponding to an input unit and a prohibition unit) for controlling them. ), A remote operation unit 9 (corresponding to the operation unit). It is assumed that the X axis, the Y axis, and the Z axis are set as illustrated.

  The table 3 is provided so that the headstock and the tailstock are opposed to each other, and the work W is rotated in parallel with the X axis at both ends of the work W by the chuck provided on the headstock and the center provided on the tailstock. It is supported so that it can rotate around the axis.

  The grinding wheel base 4 includes a grinding wheel 40 (corresponding to a movable part) for grinding the workpiece W. The grinding wheel 40 is supported on the grinding wheel base 4 so as to be rotatable around a rotation axis parallel to the X axis. The grinding wheel 40 has a configuration in which, for example, super hard CBN abrasive grains are bonded to the outer periphery of a disk-shaped metal core by vitrified bonds. The grindstone table 4 can be moved relative to the bed 2 in the X-axis direction and the Z-axis direction by the control unit 8 controlling a drive mechanism (not shown).

  The truing device 5 includes a truer 50 that is arranged integrally with the table 3 and that trues the grinding wheel 40. For example, each time the grinding wheel 40 grinds a predetermined number of workpieces W, the truer 50 is rotationally driven around a rotation axis parallel to the X axis, and the grinding wheel 40 is trued. The truing device 5 is provided with an AE sensor 51 for detecting contact between the truer 50 and the grinding wheel 40 in this embodiment (see FIGS. 4 and 5). The AE sensor 51 detects the contact between the grinding wheel 40 and the truer 50 by detecting the sound generated during the contact.

  The detection pin 6 is a part for detecting a change in the shape of the grinding wheel 40, and is arranged integrally with the table 3 so as to be aligned with, for example, the truing device 5 as shown in the figure. Pin 61 is provided. The outer peripheral surface detection pin 60 is provided for detecting the outer peripheral surface of the grinding wheel 40, and the end surface detection pin 61 is provided for detecting the end surface of the grinding wheel 40 (see FIGS. 6 and 7). And the AE sensor 62 for detecting that the grinding wheel 40 and the outer peripheral surface detection pin 60 or the end surface detection pin 61 contacted is provided. The AE sensor 62 detects the contact between the grinding wheel 40 and the outer circumferential surface detection pin 60 or the end surface detection pin 61 by detecting a sound generated at the time of contact.

  The master plate 7 is a part for providing a reference position in the position storage process. The master plate 7 is formed in an L-shaped cross section including end surfaces 70 and 71, and is disposed integrally with the table 3 at a position between the outer peripheral surface detection pin 60 and the end surface detection pin 61 as shown, for example. At the beginning of the position storage process, the operator contacts the end surface 70 and the outer peripheral surface of the grinding wheel 40 to store the position, and contacts the end surface 71 and the end surface of the grinding wheel 40 to store the position (described later).

  The control unit 8 and the remote control unit 9 are parts for controlling the grinding machine 1. The table 3 and the grindstone table 4 move relative to the bed 2 according to a command from the control unit 8. Further, the control unit 8 receives the position information transmitted from the grinding wheel base 4. The control unit 8 has the same configuration as a normal computer, that is, a CPU that performs various information processing, a memory 81 that stores various information, and the like. The memory 81 comprehensively indicates a RAM as a work area of the CPU, a nonvolatile storage unit, and the like. The control unit 8 also includes a position storage button 80 (corresponding to an input unit) for an operator to instruct position storage.

  The remote operation unit 9 (operation unit) is a part for an operator to hold and remotely operate each unit of the grinding machine 1. The remote control unit 9 includes a direction selection unit 90, a handle 91, and a magnification selection unit 92. The direction selection unit 90 is a part for the operator to select the movement direction of the grindstone table 4 from any one of the X-axis direction, the Y-axis direction, and the Z-axis direction. As shown in the figure, the handle 91 is, for example, a circular knob, and when the operator rotates it to the plus side (minus side), the grindstone table 4 is placed in a plus direction (minus direction) in the direction selected by the direction selection unit 90. Moving.

  The magnification selection unit 92 is a part for the operator to select a magnification. Here, the magnification is (A) the ratio of (B) the moving distance of the grindstone table 4 to the operation amount (rotation angle) of the handle 91, that is, an amount obtained by dividing B by A. In the magnification selection unit 92, for example, a reference magnification is determined, and the operator selects “1 ×”, “10 ×”, “100 ×”, or the like. For example, when the operator selects “10 times”, the grindstone table 4 moves at 10 times the reference magnification.

(2. Examples of position storage processing)
Under the above configuration, various position storage processes are executed in the grinding machine 1. Specifically, the position storage process relates to, for example, the position information related to the shape of the grinding wheel 40, the position information related to the shape of the truer 50, and the position of the detection pin 6 after exchanging the grinding wheel 40 or the truer 50. This is a process of storing position information. The position storage process includes a process of calculating various numerical values such as the diameter of the grinding wheel 40 based on the stored position information. In these position storage processes, the operator manually moves the grinding wheel 40 to contact the master plate 7, the truer 50 and the detection pin 6, and the position storage process is executed by pressing the position storage button.

  Examples of how the positions of the grinding wheel 40, the truer 50, and the detection pin 6 are stored are shown in FIGS. FIG. 2 shows a case where the position of the outer peripheral surface of the grinding wheel 40 is stored and the diameter of the grinding wheel 40 is calculated based on the stored position information of the outer peripheral surface. FIG. 3 shows an example in which the position of the end face of the grinding wheel 40 is stored, and the width of the grinding wheel 40 is calculated based on the stored position information of the end face. FIG. 4 shows an example in which the position of the outer peripheral surface of the truer 50 is stored and the diameter of the truer 50 is calculated based on the stored position information of the outer peripheral surface. FIG. 5 shows an example in which the position of the end surface of the truer 50 is stored and the width of the truer 50 is calculated based on the stored position information of the end surface. FIG. 6 shows an example in which the position of the outer peripheral surface detection pin 60 is calculated and stored. FIG. 7 shows an example in which the position of the end face detection pin 61 is calculated and stored.

  When performing these processes, the Z coordinate of the end surface 70 of the master plate 7 and the X coordinate of the end surface 71 are known as described above, and are stored in the memory 81, for example. Further, the control unit 8 can sequentially calculate the X coordinate and the Z coordinate of the reference point of the grinding wheel base 4 (for example, the intersection of the axis of the grinding wheel 40 and the right end surface of the grinding wheel 40 in FIG. 1). The calculation method may be a known method such as detecting the rotation angle of an electric motor that drives the grindstone table 4 with an encoder.

  Specifically, in the position memory of the outer peripheral surface of the grinding wheel 40 shown in FIG. 2, the operator (after moving the position of the grinding wheel 40 in the X-axis direction to an appropriate position by the remote control unit 9). The direction selection unit 90 selects the Z-axis direction and operates the handle 91 to the minus side. As a result, the grinding wheel 40 moves in the negative direction of the Z axis and comes into contact with the end surface 70 of the master plate 7 as illustrated. For example, when the operator recognizes that the grinding wheel 40 and the end face 70 are in contact with each other because the grinding wheel 40 is not rotated by the operation of the handle 91, the operator operates the position memory button 80 to perform control. Command unit 8 to store position. When receiving this command, the control unit 8 stores the position of the reference point of the grinding wheel 40 at that time in the memory 81. Further, the control unit 8 calculates the diameter of the grinding wheel 40 from the difference value between the stored Z coordinate of the reference point and the Z coordinate of the end face 70 already stored in the memory 81, and stores it in the memory 81.

  In the position memory of the end face of the grinding wheel 40 shown in FIG. 3, the operator selects the direction selection unit 90 (after moving the position of the grinding wheel 40 in the Z-axis direction to an appropriate position by the remote control unit 9). To select the X-axis direction and operate the handle 91 to the minus side. As a result, the grinding wheel 40 moves in the negative direction of the X axis and contacts the end surface 71 of the master plate 7 as illustrated. For example, when the operator recognizes that the grinding wheel 40 is in contact with the end surface 71 because the grinding wheel 40 is not rotated by the operation of the handle 91, the operator operates the position memory button 80 to perform control. Command unit 8 to store position. When receiving this command, the control unit 8 stores the position of the reference point of the grinding wheel 40 at that time in the memory 81. Further, the control unit 8 calculates the width of the grinding wheel 40 from the difference value between the stored X coordinate of the reference point and the X coordinate of the end surface 71 already stored in the memory 81, and stores it in the memory 81.

  In the position memory of the outer peripheral surface of the truer 50 shown in FIG. 4, the operator selects the direction selection unit 90 (after moving the position of the grinding wheel 40 in the X-axis direction to an appropriate position by the remote control unit 9). To select the Z-axis direction and operate the handle 91 to the minus side. As a result, the grinding wheel 40 moves in the negative direction of the Z axis and contacts the outer peripheral surface of the truer 50 as shown in the figure. For example, when the operator recognizes that the grinding wheel 40 and the truer 50 are in contact with each other based on the output of the AE sensor 51, the operator instructs the control unit 8 to store the position by operating the position storage button 80. When receiving this command, the control unit 8 stores the position of the reference point of the grinding wheel 40 at that time in the memory 81. Further, the control unit 8 calculates the diameter of the truer 50 using the stored Z coordinate of the reference point and the diameter of the grinding wheel 40 already stored in the memory 81, and stores it in the memory 81.

  In the position memory of the end face of the truer 50 shown in FIG. 5, the operator selects (after moving the position of the grinding wheel 40 in the Z-axis direction to an appropriate position by the remote control unit 9) by the direction selection unit 90. The X-axis direction is selected and the handle 91 is operated to the minus side. As a result, the grinding wheel 40 moves in the negative direction of the X axis and contacts the end surface of the truer 50 as shown in the figure. For example, when the operator recognizes that the grinding wheel 40 and the truer 50 are in contact with each other based on the output of the AE sensor 51, the operator instructs the control unit 8 to store the position by operating the position storage button 80. When receiving this command, the control unit 8 stores the position of the reference point of the grinding wheel 40 at that time in the memory 81. Further, the control unit 8 calculates the width of the truer 50 using the stored X coordinate of the reference point and the width of the grinding wheel 40 already stored in the memory 81, and stores it in the memory 81.

  In the position memory of the outer peripheral surface detection pin 60 shown in FIG. 6, the operator selects the direction selection unit 90 (after moving the position of the grinding wheel 40 in the X-axis direction to an appropriate position by the remote operation unit 9). To select the Z-axis direction and operate the handle 91 to the minus side. Thereby, as shown in the figure, the grinding wheel 40 moves in the negative direction of the Z-axis and comes into contact with the tip of the outer peripheral surface detection pin 60. For example, when the operator recognizes that the grinding wheel 40 and the outer peripheral surface detection pin 60 are in contact with each other based on the output of the AE sensor 62, the operator instructs the control unit 8 to store the position by operating the position storage button 80. When receiving this command, the control unit 8 stores the position of the reference point of the grinding wheel 40 at that time in the memory 81. Further, the control unit 8 calculates the tip position of the outer peripheral surface detection pin 60 using the stored Z coordinate of the reference point and the diameter of the grinding wheel 40 that is already stored in the memory 81, and stores it in the memory 81. .

  In the position memory of the end face detection pin 61 shown in FIG. 7, the operator selects the direction selection unit 90 (after moving the position of the grinding wheel 40 in the Z-axis direction to an appropriate position by the remote control unit 9). The X-axis direction is selected and the handle 91 is operated to the minus side. Thereby, as shown in the figure, the grinding wheel 40 moves in the negative direction of the X axis and comes into contact with the tip of the end face detection pin 61. For example, when the operator recognizes that the grinding wheel 40 and the end face detection pin 61 are in contact with each other based on the output of the AE sensor 62, the operator operates the position storage button 80 to instruct the position storage to the control unit 8. When receiving this command, the control unit 8 stores the position of the reference point of the grinding wheel 40 at that time in the memory 81. Further, the control unit 8 calculates the tip position of the end face detection pin 61 using the stored X coordinate of the reference point and the width of the grinding wheel 40 already stored in the memory 81 and stores it in the memory 81.

(3. Processing procedure in this embodiment)
In connection with the position storage process as described above, the processing procedure shown in FIG. This processing procedure includes both a manual processing by the operator and an automatic processing procedure by the control unit 8. The part of the automatic processing procedure by the control unit 8 may be programmed in advance and stored in the memory 81, for example, and the CPU of the control unit 8 may automatically call and execute it. Hereinafter, the master plate 7, the truer 50, and the detection pins 60 and 61 are referred to as contact objects.

  In the processing procedure of FIG. 8, first, the control unit 8 determines whether or not there is a manual movement operation of the grinding wheel 40 by the operator (S10). Specifically, the moving operation is performed by the operator selecting the moving direction with the direction selection unit 90 and operating the handle 91 to the plus side or the minus side. If the operator manually moves the grinding wheel 40 (S10: YES), the next procedure is S20. If there is no moving operation (S10: NO), S10 is repeated to wait for a manual operation. .

  After proceeding to S20, the control unit 8 performs magnification adjustment processing by the adjustment unit provided in the control unit 8. In this process, the control unit 8 sets the magnification selected by the operator using the magnification selection unit 92 as the magnification in the movement of the grindstone table 4. The grindstone table 4 moves in the moving direction selected by the operator using the direction selection unit 90 according to the operation amount received by the handle 91 in S10 with the magnification set in this way (S30).

  An operator discriminate | determines whether the grinding wheel 40 and the contact target object contacted (S40). If it is determined that the grinding wheel 40 is in contact with the object (S40: YES), the next procedure is S50. If it is determined that the wheel is not in contact (S40: NO), the process returns to S10 and the above procedure is performed. Is repeated. The determination of contact may be based on the rest of the grinding wheel 40 and the output of the AE sensors 51 and 62 as described above.

  After proceeding to S50, the control unit 8 determines whether or not there is a position storage command. The position memory command indicates an operation (for example, pressing) of the position memory button 80 by the operator. If there is a position memory command (S50: YES), the next procedure is S60. If there is no position memory command (S50: NO), S50 is repeated to enter a position memory command waiting state. After proceeding to S60, the control unit 8 stores the position of the reference point of the grinding wheel 40 at that time. At that time, as described above, the diameter or width of the grinding wheel 40, the diameter or width of the truer 50, the position of the outer peripheral surface detection pin 60, and the end face depending on what the contact object is. One of the positions of the detection pin 61 is calculated and stored in the memory 81.

  In this way, the position is stored in a state where the grinding wheel 40 and the contact object are in contact, and various numerical values are calculated based on the position information. Next, the control unit 8 has received a moving operation from the operator. Is discriminated (S70). Here, the moving operation is an operation of rotating the handle 91 by the operator. When the moving operation is accepted (S70: YES), the next procedure is S80, and when the moving operation is not accepted (S70: NO), S70 is repeated to wait for the moving operation.

  Next, the control unit 8 determines whether or not the moving direction of the grinding wheel 40 by the moving operation received in S70 is a direction in which the contact target is pressed (S80). In the examples of FIGS. 2 to 7, the pressing direction is the negative side of the X axis or the Z axis. If the moving direction is a direction to press the contact object (S80: YES), the next procedure is S90. If the moving direction is not a direction to press the contact object (S80: NO), the next procedure is S100. Become.

  If it progresses to S90, the control unit 8 will prohibit the movement of the grinding wheel 40 by the prohibition part which the control unit 8 has. Specifically, even if the operator operates in a direction in which the handle 91 presses the grinding wheel 40 and the object to be contacted (the negative direction in FIGS. 2 to 7), the grinding wheel base 4 remains stationary. That's fine.

  On the other hand, if it progresses to S100, the control unit 8 will adjust a magnification | multiplying_factor by an adjustment part. Specifically, the magnification may be adjusted as shown in FIG. In the example of FIG. 9, if the distance between the grinding wheel 40 and the contact object is 0 to 1 mm, the magnification is 1 time (reference magnification), and if it is 1 mm to 5 mm, the magnification is 10 times the reference magnification, and the control unit 8 (adjustment). Part) is set automatically.

  And the control unit 8 moves the grinding wheel 40 according to the movement operation received by S70 (S110). At that time, the magnification set in S100 is used. Therefore, how the operator selects the magnification selection unit 92 is ignored.

  Next, the control unit 8 determines whether or not the grinding wheel 40 and the contact object are separated by a predetermined distance (S120). When the grinding wheel 40 and the contact object are separated by a predetermined distance (S120: YES), the next procedure is S130, and when not separated by a predetermined distance (S120: NO), the process returns to S120 and the above procedure is repeated. After proceeding to S130, the control unit 8 ends the movement prohibition process (S90). If the predetermined distance in S120 is about 5 mm, for example, it is preferable because the operator can surely recognize that the grinding wheel 40 and the contact object are separated. The above is the processing procedure of FIG.

  By executing the above processing procedure, even if the operator manually operates to erroneously press the grinding wheel 40 and the contact object after storing the position, the pressing can be automatically avoided. Further, since the magnification set in S100 is used in the movement in S110, even if the operator adjusts the magnification to be high when storing the position, it is ignored and the distance between the grinding wheel 40 and the contact object is short. In addition, an appropriate gentle separation is performed. The movement prohibition in S90 may be a form in which the rotation of the handle 91 in the direction in which the grinding wheel 40 and the contact target are pressed is mechanically prohibited (cannot be rotated in that direction).

(4. Summary)
As described above, according to the present invention, the machine tool 1 (grinding machine) includes the movable unit 40 that can be moved by an operator's operation, and receives an operation from the operator for moving the movable unit 40. The movable part 40 (grinding wheel) is moved by the operation received by the part 9 (remote operation part) and the operation part 9, and predetermined contact objects 7, 50, 60 provided in the machine tool 1 (grinding machine) , 61, an input unit 80 that receives a command input from an operator that commands storage of position information corresponding to the contact position between the movable unit 40 and the contact object 7, 50, 60, 61, and an input After the unit 80 accepts the command input, the prohibition unit 8 and S90 that prohibit the movement of the movable unit 40 in the direction of pressing the contact objects 7, 50, 60, and 61 may be provided. According to such a configuration, since the input unit 80 receives the command input, the prohibition unit 8, S90 that prohibits the movement of the movable unit 40 in the direction of pressing the contact object 7, 50, 60, 61 is provided. Even if the movable part 40 and the contact objects 7, 50, 60, 61 are operated in the direction of pressing after the position is stored, the pressing is appropriately avoided. Therefore, damage to the movable part 40 and the contact objects 7, 50, 60, 61 in the machine tool 1 is appropriately avoided, contributing to productivity improvement.

In the present invention, the control system operates the operation unit 9 (remote operation unit) in a state where the prohibition unit 8 and S90 prohibit the movement of the movable unit 40 in the direction in which the contact object 7, 50, 60, 61 is pressed. When the movable part 40 is separated from the contact object 7, 50, 60, 61 by a predetermined distance by the operation received by the control unit, the movable part 40 is moved in the direction of pressing the contact object 7, 50, 60, 61 by the prohibition part . It is good also as the thing provided with the stop part 8 and S130 which stop the operation | movement which prohibits a movement. According to such a configuration, if the movable part 40 and the contact objects 7, 50, 60, 61 are sufficiently separated, for example, the prohibition of the movement of the movable part 40 can be appropriately terminated.

  In the present invention, after the input unit 80 accepts the command input, the control system operates the operation unit 9 in accordance with the increase in the distance between the movable unit 40 and the contact object 7, 50, 60, 61. The adjustment unit 8 and S100 may be provided to adjust the magnification from the operation amount of the manual operation received by the movement unit 40 to the moving distance of the movable unit 40. According to such a configuration, the movable portion 40 and the contact objects 7, 50, 60, 61 can be gradually and gradually separated from the contact state by appropriately adjusting the magnification.

  Further, in the present invention, the control system includes an adjustment input unit 8 that receives an adjustment input from an operator that adjusts the magnification from the operation amount of the manual operation received by the operation unit 9 to the moving distance of the movable unit 40, and the movable unit 40. And the contact object 7, 50, 60, 61 are within a predetermined distance, regardless of the adjustment input received by the adjustment input unit 8, the adjustment unit 8, S100 adjusts the magnification. It is good also as a thing provided with the control part 8 and S100 which control. According to such a configuration, even if the operator manually sets the magnification to be higher when storing the position, priority is given to automatic adjustment of the magnification, and the movable portion 40 and the contact objects 7, 50, 60 and 61 can be separated.

  In the present invention, the machine tool 1 is a grinding machine, the movable part 40 is a grindstone, and the contact objects 7, 50, 60, 61 may be any one of a master plate, a truer, and a detection pin. . According to such a configuration, in the grinding machine, after the position is stored, even if the operator erroneously operates in the direction of pressing any one of the grindstone, the master plate, the truer, and the detection pin, the pressing is automatically avoided. Therefore, damage to the grindstone, the truer, the master plate, and the detection pin is avoided, which contributes to reduction of cutting tool abnormal costs and improvement of productivity.

  The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the spirit of the present invention. For example, although the example of the grinding machine was shown in the said embodiment, this invention is not limited to this, It can apply to a machine tool generally. That is, for example, in a machine tool, the tool and the workpiece may be manually brought into contact with each other and stored in a position and then moved in a direction in which they are pressed may be prohibited.

  DESCRIPTION OF SYMBOLS 1 ... Grinding machine (machine tool), 6 ... Detection pin (contact object), 7 ... Master plate (contact object), 8 ... Control unit (prohibition part, stop part, adjustment part, adjustment input part, control part) 9 ... Remote operation unit (operation unit), 40 ... Grinding wheel (movable unit), 50 ... Truer (contact object), 60 ... Outer surface detection pin (contact object), 61 ... End surface detection pin (contact object) , 91... Handle (operation unit), 92... Magnification selection unit (operation unit).

Claims (5)

In a machine tool control system having a movable part movable by an operator's operation,
An operation unit for receiving an operation from the operator;
A position corresponding to a contact position between the movable part and the contact object in a state where the movable part is moved by an operation received by the operation part and is in contact with a predetermined contact object provided in the machine tool. An input unit that receives a command input from an operator that commands storage of information;
After the input unit has received the command input, a prohibiting unit that prohibits movement of the movable unit in a direction of pressing the contact object;
When the movable part is separated from the contact object by a predetermined distance by an operation received by the operation part in a state where the movement of the movable part in the direction in which the prohibition part presses the contact object is prohibited, And a stop unit that stops an operation of prohibiting the movement of the movable unit in a direction in which the object to be pressed is pressed by the prohibition unit . In a machine tool control system having a movable part movable by an operator's operation,
An operation unit for receiving an operation from the operator;
A position corresponding to a contact position between the movable part and the contact object in a state where the movable part is moved by an operation received by the operation part and is in contact with a predetermined contact object provided in the machine tool. An input unit that receives a command input from an operator that commands storage of information;
After the input unit has received the command input, a prohibiting unit that prohibits movement of the movable unit in a direction of pressing the contact object;
After the input unit receives the command input, the moving distance of the movable unit from the operation amount received by the operation unit according to the increase in the distance between the movable unit and the contact object. And a control unit that adjusts the magnification to increase . After the input unit receives the command input, the control system determines the operation amount received by the operation unit from the operation amount received by the operation unit according to an increase in a distance between the movable unit and the contact object. The control system according to claim 1, further comprising an adjustment unit that adjusts the magnification of the movable unit to the moving distance. The control system includes:
An adjustment input unit that receives an adjustment input from an operator that adjusts a magnification from an operation amount of the operation received by the operation unit to a moving distance of the movable unit;
Control for controlling the magnification to be adjusted by the adjustment unit regardless of the adjustment input received by the adjustment input unit when the distance between the movable unit and the contact object is within a predetermined distance. And
The control system according to claim 2, comprising:   The control system according to any one of claims 1 to 4, wherein the machine tool is a grinder, the movable part is a grindstone, and the contact object is any one of a master plate, a truer, and a detection pin. .

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