JP3803428B2 - Position setting device for movable member in plate processing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plate material processing machine such as a laser processing machine that obtains a desired product by performing laser processing such as cutting and drilling on a work, and in particular, for example, a processing reference point at an arbitrary position on the work. Position setting operation by manual input for moving a movable member such as a work table or a laser processing head to an arbitrary position can be easily realized on the display screen of the display. Position setting device for movable member in plate processing machine About.
[0002]
[Prior art]
As a conventional laser processing machine, for example, a work table on which a work is placed is moved in the front-rear direction, and the laser processing head is moved in the left-right direction to perform desired processing such as cutting and punching the work. The form which gives is known.
[0003]
Further, as a conventional punch press, for example, a workpiece clamping device that grips a workpiece is moved in two directions, front, back, left, and right, and a desired machining position on the workpiece is positioned between the punch and the die, and a hole is punched in the workpiece. There are known forms in which desired processing such as molding is performed.
In these plate material processing machines, there is a demand to move a movable member such as a work table or a laser processing head to an arbitrary position, for example, when a processing reference point is set at an arbitrary position on the workpiece.
[0004]
In order to respond to this demand, the conventional plate material processing machine is provided with various keys on the operation panel of the NC control device that enable a position setting operation by manual input.
[0005]
Regarding these various keys, a laser processing machine will be described as an example of a plate material processing machine. As various keys, a “manual” mode selection key for selecting a mode for moving a movable member to an arbitrary position by manual operation, and an operation panel “MDi” is used to input NC data by manually inputting various keys such as numeric keys and alphabet keys arranged above, and to select a mode for moving the movable member along a predetermined path according to the input NC data. This is used when a mode selection key and a “manual” mode selection key are selected and input, for example, to instruct the movement direction and movement distance of the movable member. For example, “+ X” “+ Y” “+ Z” “−X” “ And movement keys such as -Y "and" -Z ".
[0006]
As the position setting operation when the operator selects and inputs the “manual” mode selection key, first, a movable member to be moved is selected, and for example, “+ X” corresponding to the direction in which the operator wants to move the movable member. Press a move key such as Then, the X-axis drive motor rotates for the time during which the pressing is continued, and the movable member can be moved by a distance corresponding to this rotation time.
[0007]
On the other hand, as the position setting operation when the operator inputs the “MDi” mode selection key, first, a movement program that can move the movable member to be moved to a position to be moved is created, and the created program is manually operated. Enter and run. Then, the drive motor of each axis that drives the corresponding axis rotates, and the movable member can be moved to a position to be moved.
[0008]
[Problems to be solved by the invention]
However, in the above-described conventional method for setting the position of the movable member in the plate material processing machine, the setting operation for moving the movable member to the position where the movable member is desired to be moved is complicated. There were a plurality of problems to be solved that it was difficult to perform the setting operation smoothly.
[0009]
To describe this, first, in the method of moving the movable member directly by manually inputting a “manual” mode selection key or the like, when moving the movable member from the current position to a certain position, In many cases, the relationship is not on one axis such as the X-axis and the Y-axis, so that the movable member is operated while alternately operating the movement keys that control the movements in the different axial directions so that the trajectory is stepped. Must be moved from the current position to a certain position, and the operation is very complicated. In this operation, the operator must visually recognize the movement state with the line of sight toward the movable member while operating a predetermined movement key. It was supposed to require.
[0010]
On the other hand, in the method of manually inputting the “MDi” mode selection key or the like and moving the movable member according to the created movement program, to create a movement program that can move the movable member from the current position to a certain position. It is necessary to acquire the relationship between the two positions in the form of coordinates in a relative coordinate system. For this reason, the extra work of measuring the dimension along each axis in the relative coordinate system between both positions using a scale or the like is necessary, and this measurement work is very complicated. In addition, in order to create the travel program, it is necessary to be proficient in the corresponding program language, and considerable skill is required to create a travel program free from errors in a short time.
[0011]
In view of such a situation, even a novice operator can arbitrarily select a movable member by adopting an operation mode that is easy to understand even for beginners as a setting operation for moving the movable member to an arbitrary position in a plate material processing machine. The development of a new technology that can be easily moved to the position of has been long awaited among those concerned.
[0012]
The present invention has been made to solve the above-described problems. For example, when a processing reference point is set at an arbitrary position on a workpiece, a movable member such as a work table or a laser processing head is positioned at an arbitrary position. It is an object of the present invention to provide a position setting method and a position setting apparatus for a movable member in a plate material processing machine that can easily perform a position setting operation by manual input for moving the position on a display screen of a display.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is configured to move the movable member in the plate material processing machine to an arbitrary position by manually setting the processing reference at an arbitrary position on the workpiece. An apparatus for setting a position of a movable member in a configured plate material processing machine, comprising: NC data calling means for calling NC data related to a product to be processed; and a relative position that covers a current setting position of the processing reference and a settable range of the processing reference. While displaying on the display screen of the display means in the form of a combination of the coordinates and the product image similar to the product obtained from the NC data called by the NC data calling means placed on the relative coordinates, When the operator drags the product image displayed on the display screen of the display means to an arbitrary position on the relative coordinates, this manual dragging movement Display control means for controlling the display of the product image on the display, and the display control means drags the product image displayed on the display screen of the display means to an arbitrary position on the relative coordinates. A position capturing unit that captures the manually moved drag movement position as a setting target position of the processing reference; and a movement control unit that moves the movable member to the setting target position captured by the position capturing unit. The display control means is configured to display the product image displayed at the drag movement position until the work clamping device that grips the work releases the work when the cutting process relating to the product image is completed. Is displayed continuously on the display screen, and a product image that has already been cut out is placed at a predetermined interval set in advance by parameters. Te, the upper and lower left of the new product image said the segmented product image To the right The gist is that it can be automatically arranged and displayed.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a plurality of embodiments of a position setting method of a movable member and a position setting device in a plate material processing machine according to the present invention will be described in detail based on the drawings.
[0015]
FIG. 1 is a block diagram showing the periphery of the main part of the present invention, FIG. 2 is an operation flowchart of the present invention, and FIGS. 3 to 4 are diagrams for explaining the position setting procedure of the movable member according to the present invention. FIG. 5 is a diagram for explaining the procedure for setting the position of the movable member according to the third embodiment of the present invention, and FIG. 6 shows the overall configuration of the laser processing machine as the plate material processing machine according to the first embodiment of the present invention. FIG. 7 is a perspective view showing the overall configuration of a punch press as a plate material processing machine according to the second embodiment of the present invention. In addition, in this embodiment, the same code | symbol is attached | subjected between the members which have the same function.
[0016]
First, as a first embodiment of the present invention, an embodiment in which the present invention is applied to a laser processing machine as a plate material processing machine will be described as an example. As shown in FIG. For example, a box-shaped bed 3 extending in the axial direction is provided, and a plurality of guide rails 5 extending in the X-axis direction are laid in parallel on the bed 3. On the guide rail 5 is provided a work table 7 that is movable in the X-axis direction via an X-axis drive motor 25 shown in FIG. 1 and drive members such as a ball screw and a nut member (not shown). . On the work table 7, a flat work W to be processed is placed. A plurality of work clamping devices 9 are provided at an appropriate interval on one side of the work table 7 and in the right X-axis direction in FIG. 5. It is comprised so that it can hold with.
[0017]
A portal frame 11 is erected across the bed 3. The portal frame 11 includes an upper frame 11U and a pair of side frames 11R and 11L. A plurality of guide rails 13 extending in the left-right direction (Y-axis direction) are laid in parallel to each other on the front side of the upper frame 11U in the portal frame 11, and the guide rails 13 are shown in FIG. A Y-axis carriage 15 that is movable in the Y-axis direction is provided via a Y-axis drive motor 27 and drive members such as a ball screw and a nut member (not shown).
[0018]
The Y-axis carriage 15 is provided with a bend mirror for guiding a laser beam initially emitted in the Y-axis direction to a processing point, and a vertical direction (Z A laser processing head 17 is provided that is movable in the axial direction. In the laser processing head 17, a bend mirror and a condenser lens are provided, and a laser nozzle 19 is provided integrally with the head 17 at the tip of the laser processing head 17. Further, an NC control device 21 for comprehensively controlling the operation of the movable member in the laser beam machine 1 is attached to the upper portion of the side frame 11R in the portal frame 11 via a bracket 23.
[0019]
With the above configuration, the work table 7 is moved in the X-axis direction and the Y-axis carriage 15 is moved in the Y-axis direction according to the NC data sent from the NC control device 21, so that it is oscillated from a laser oscillator (not shown). The laser beam passes through a bend mirror and a condensing lens and is irradiated toward the workpiece W via the laser nozzle 19, and the workpiece W is subjected to desired laser processing such as cutting and drilling. Become.
[0020]
Further description will be continued with reference to FIG. 1. Each of the X-axis drive motor 25 and the Y-axis drive motor 27 described above is connected to an I / O 29, and a parallel transmission cable 31 is connected to the I / O 29. The data indicating the operation state of the movable member such as the rotational position information of the X-axis and Y-axis drive motors 25 and 27 is input via the reference, while the data indicating the input operation state is referred to in the laser processing machine 1 A programmable logic controller (hereinafter referred to as PLC) 33 for controlling the operation of the movable member in sequence is connected to the PLC 33. For example, the PLC 33 is connected to, for example, a personal communication interface 35 such as RS232C. The CPU 37 is connected to a terminal device such as a computer.
[0021]
This terminal device has a function for setting the position of the movable member by manual input as the NC control device 21 described above, and a PC board is added to the conventional NC control device, or the conventional NC control device is added. Instead, it can be configured by adding an NC board having an NC function to a personal computer. In any case, the man-machine interface function as a contact point between the laser beam machine 1 and the operator is an operating system (hereinafter referred to as an OS) having excellent operability such as Windows manufactured by Microsoft Corporation. The position setting function of the movable member in the plate material processing machine having excellent operability as in the present invention is achieved.
[0022]
The CPU 37 receives a command from the CPU 37 from among a ROM 39 for storing various processing programs, a RAM 41 for storing various processing data, and a plurality of image data stored in advance in a storage medium such as the RAM 41. A video RAM (hereinafter referred to as VRAM) 43 that draws image data corresponding to this command in its storage area is connected to a display 45 that displays image data read from the VRAM 43 on its display screen. The display 45 is provided so as to cover the surface of the display screen, and when the arbitrary position on the display screen is touched with a finger or a light pen, the position coordinate is detected and the position coordinate data is obtained. A touch screen 47 that outputs to the CPU 37 is connected.
[0023]
Next, regarding the operation of the movable member position setting device in the laser beam machine according to the embodiment of the present invention described above, the two-dimensional coordinates of the workpiece coordinate system displayed on the display screen of the display 45 are set on the workpiece W. An example of moving the work table 7 and the laser processing head 17 as movable members to desired positions by manually setting the position of the processing reference point will be described in detail along the operation flowchart shown in FIG. To do.
[0024]
First, the CPU 37 sets the values of variables stored in various registers, which are referred to in determination processing described later, as initial values, and sets the coordinate axes of the two-dimensional coordinates of the work coordinate system and the machining reference point at the current position. A pointer 49 serving as an index indicating the position of the pointer and the coordinate value of the pointer 49 are displayed on the display screen of the display 45 (step S1). In the present embodiment, when the position setting device is started up, the pointer 49 is placed on the origin O (0, 0) of the two-dimensional coordinate in the work coordinate system, and the laser machining head 17 is in the work coordinate system. Is located immediately above the origin O on the two-dimensional coordinates. Next, the CPU 37 determines whether or not position coordinate data is output from the touch screen 47, that is, whether or not the display screen of the display 45 has been touched (step S3). As a result of this determination, if the display screen is not touched, the CPU 37 repeatedly executes the determination process of step S3. On the other hand, if it is determined that the display screen is touched, whether or not the finger has left the display screen of the display 45. This determination process is executed (step S5). As a result of this determination, if it is determined that the finger is not separated from the display screen, the CPU 37 deletes the currently displayed pointer 49 from the display screen, and the finger position coordinate data on the display screen from the touch screen 47. And the pointer 49 is displayed at the position on the read display screen (steps S7 to S11). Further, the CPU 37 calculates a two-dimensional coordinate value of the work coordinate system where the pointer 49 is currently located based on the position coordinate data of the finger on the display screen read from the touch screen 47, and calculates the calculated two-dimensional coordinates. The value is displayed on the display screen, and the process step returns to the determination process of step S5 (steps S13 to S15).
[0025]
On the other hand, if it is determined as a result of the determination in step S5 that the finger has left the display screen, the CPU 37 reads the position coordinate data on the display screen where the finger was last placed from the touch screen 47, and the read position coordinates. The coordinate value calculated from the data is stored as a processing reference point in a memory such as the RAM 41 (step S17), and all the processes are terminated.
[0026]
Next, the procedure for setting the position of the movable member in the laser beam machine viewed from the operator side will be described with reference to the flowcharts shown in FIGS.
[0027]
First, the operator selects and inputs a function mode for setting the position of the machining reference point by manual input operation (step S21). Then, on the display screen of the display 45, as shown in the screen 1, the XY coordinate axes of the two-dimensional coordinates of the workpiece coordinate system, the pointer 49 indicating the position where the machining reference point is currently placed, and the coordinates of the pointer 49 The value is displayed (step S23). At this time, the operator touches the vicinity of the pointer 49 located on the origin O of the display screen shown in the screen 2 with the finger (step S25), and the finger is processed with the touching position on the display screen as shown in the screen 3. When the so-called drag movement is performed (step S27), the pointer 49 moves its position following the movement of the finger, while the coordinate value of the display screen is updated to the coordinate value of the pointer 49 after the movement. .
[0028]
At this time, when the operator releases his / her finger from the pointer 49 on the display screen (step S29), as shown in the screen 4, the position coordinate of the pointer 49 when the finger is released is registered in the memory as the position coordinate of the new processing reference point. (Step S31). Instead of the steps S25 to S27 described above, an arbitrary position on the two-dimensional coordinate in the work coordinate system can be touched with a finger, and this touch position can be registered as a processing reference point.
[0029]
As described above, according to the position setting device for the movable member in the laser beam machine according to the embodiment of the present invention, the two-dimensional coordinates of the workpiece coordinate system and the machining reference point are currently placed on the display screen of the display 45. The processing reference point can be set to an arbitrary position by displaying the pointer 49 indicating the current position together and moving the pointer 49 to an arbitrary position by the operator's manual input operation on the two-dimensional coordinates. Therefore, the man-machine interface that is the contact point between the laser beam machine 1 and the operator can be constructed in an intuitively understandable form even for beginners. As a result, laser processing with extremely excellent operability is achieved. The position setting of the movable member in the machine can be realized.
[0030]
Next, as a second embodiment of the present invention, an example in which the present invention is applied to a punch press as a plate material processing machine will be described as an example. As shown in FIG. Similarly, the workpiece clamping device 9 and the positioning member 10 are provided. After positioning the workpiece W at a predetermined position, the carriage 83 to which the workpiece clamping device 9 is attached is moved in the X-axis direction, and the carriage base 85 is moved to the Y-axis. By moving in the axial direction, a desired machining position on the workpiece W is positioned between the punch 91 and the die 93 provided on the upper and lower turrets 87 and 89, respectively, and the punch 91 is pressed against the workpiece W by the ram 95. Punching, forming and other processing.
[0031]
Also according to the second embodiment of the present invention described above, the two-dimensional coordinates of the work coordinate system and the machining reference are displayed on the display screen of the display 45 as in the application example to the laser beam machine 1 according to the first embodiment described above. A pointer 49 representing the position where the point is currently placed is displayed together, and the pointer 49 is moved to an arbitrary position by the operator's manual input operation on the two-dimensional coordinates, whereby the processing reference point can be arbitrarily set. If it is configured so that it can be set to a position, the man-machine interface that is the contact point between the punch press 81 and the operator can be constructed in an intuitively understandable form even for beginners. The position setting of the movable member in the punch press can be realized.
[0032]
Next, a third embodiment of the present invention will be described with reference to FIG. 5. This third embodiment is a work coordinate system on the display screen of the display 45 in the first or second embodiment described above. Instead of displaying the two-dimensional coordinates of the system and the pointer 49 indicating the position where the machining reference point is currently placed, an image similar to the product to be machined is displayed on the two-dimensional coordinates of the workpiece coordinate system. The product image 51 formed by drawing is called and the two-dimensional coordinates and the product image 51 are displayed together.
[0033]
The position setting procedure of the movable member in the plate material processing machine according to the third embodiment will be described with reference to the flowchart shown in FIG. 5 by exemplifying a laser processing machine as the plate material processing machine. When a function mode for setting the position to be manually input is selected and input, the two-dimensional coordinates of the workpiece coordinate system and the product image 51 are displayed on the display screen of the display 45 as shown in the screen 5. Is done. Thereby, it is possible to confirm in advance through vision that what type of product is cut out from which position on the workpiece W. At this time, when the operator touches the product image 51 on the display screen with a finger as shown in the screen 6 and drags and moves the product image to the processing position in this state, the product image 51 as shown in the screen 7. Moves its position following the movement of the finger. At this time, when the operator removes the finger from the product image 51 on the display screen, the position of the product image 51 when the finger is removed is registered as the processing reference position. Note that the product image 51 having a registration history in the past can be deleted from the display screen by canceling the registration only before the laser processing is performed. However, after the laser processing is finished, the product image 51 having a registration history in the past is continuously displayed without being erased from the display screen until the work clamping device 9 releases the grip of the work W. Is done. Thereby, an error of resetting the processing reference position to the position where the product has already been cut out from the workpiece W is prevented. In addition, when the position of the new product image 51 is sequentially set close to the position where the product has already been cut out from the workpiece W, the parameters are set in advance for the already cut out product image 51 using parameters as shown in the screen 7. The new product images 51 can be automatically aligned and displayed on the upper, lower, left, and right sides at predetermined intervals P1 and P2. In this way, the operability when sequentially setting the positions of new product images 51 is greatly improved.
[0034]
The position setting procedure of the movable member in the plate material processing machine according to the third embodiment has been described by exemplifying a laser processing machine as the plate material processing machine. However, the punch press 81 using the third embodiment as a plate material processing machine has been described. It goes without saying that can be applied to.
[0035]
In this way, the product image 51 in which the product to be processed is drawn is called on the two-dimensional coordinates of the work coordinate system, the two-dimensional coordinates and the product image 51 are displayed together, and the two-dimensional coordinates on the two-dimensional coordinates are displayed. Since the processing reference position can be set to an arbitrary position by moving the product image 51 to an arbitrary position by an operator's manual input operation, therefore, contact points between the plate material processing machines 1 and 81 and the operator The man-machine interface can be constructed in an intuitively understandable form even for beginners, and as a result, the position setting of the movable member in the plate material processing machine with extremely excellent operability can be realized.
[0036]
In addition, this invention is not limited to the example of embodiment mentioned above, By adding an appropriate change, it can implement in another aspect.
[0037]
That is, for example, as an object whose position is set on the display screen of the display, an elevating position in the Z-axis direction of the laser processing head can be employed.
[0038]
In addition, even if the terminal device connected to the PLC is placed at a location far away from a plate processing machine such as a centralized monitoring room, it is mediated by a network such as a LAN in the facility or a public telephone line. The position of the movable member in the plate material processing machine can be set by remote operation while visually recognizing the image displayed on the display screen of the terminal device.
[0039]
Finally, the position setting method according to the present invention, or the movable member in the plate material processing machine that has been positioned using the position setting device, is configured to move so as to follow the set position during position setting, or An appropriate configuration can be selected according to the convenience of the user as to whether to move after waiting for an input of a key for instructing the start of movement of a movable member such as a start key after the position is set.
[0040]
【The invention's effect】
As described above in detail, according to the first aspect of the present invention, the product image is displayed together on the relative coordinates of the display screen of the display means, and the product image is displayed by the operator's manual input operation on the relative coordinates. Since the machining reference is set to an arbitrary movement target position by dragging it to an arbitrary position and the movable member is moved to this movement target position, the plate material processing machine with extremely excellent operability is therefore provided. The position setting of the movable member can be realized.
on the other hand, The display control means continuously displays the product image displayed at the drag movement position on the display screen of the display means until the work clamping device that grips the work releases the work when the processing related to the product image is finished. Therefore, an excellent effect is obtained that an error of resetting the machining reference position to a position where the product has already been cut out from the workpiece is prevented in advance.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the periphery of the main part of the present invention.
FIG. 2 is an operation flowchart of the present invention.
FIG. 3 is a diagram for explaining a procedure for setting a position of a movable member according to the present invention.
FIG. 4 is a diagram for explaining a procedure for setting a position of a movable member according to the present invention.
FIG. 5 is a diagram for explaining a position setting procedure of a movable member according to a third embodiment of the present invention.
FIG. 6 is a perspective view showing an overall configuration of a laser beam machine as a plate material processing machine according to the first embodiment of the present invention.
FIG. 7 is a perspective view showing an overall configuration of a punch press as a plate material processing machine according to a second embodiment of the present invention.
[Explanation of symbols]
1 Laser processing machine
3 beds
5 Guide rail
7 Worktable
9 Work clamping device
11 Gate type frame
13 Guide rail
15 Y-axis carriage
17 Laser processing head 19 Laser nozzle
21 NC controller
23 Bracket
25 X-axis drive motor
27 Y-axis drive motor
29 I / O
31 Parallel transmission cable
33 Programmable Logic Controller (PLC)
35 Two-way communication interface
37 CPU
39 ROM
41 RAM
43 VRAM
45 display
47 touch screen
49 Pointer
51 product images
81 punch press
83 Carriage
85 Carriage base
87 Upper Turret
89 Lower turret
91 Punch
93 die
95 lamb
W Work

Claims (1)

A position setting device for a movable member in a plate material processing machine configured to move a movable member in a plate material processing machine to an arbitrary position by manually setting a processing reference at an arbitrary position on a workpiece,
NC data calling means for calling NC data related to the product to be processed;
A product image similar to the product obtained from the NC data that is placed on the relative coordinates and the NC data called by the NC data calling means with the current position of the machining reference covering the settable range of the machining reference When the operator drags the product image displayed on the display screen of the display means to an arbitrary position on the relative coordinates, Display control means for performing control to display the product image at the drag movement position by manual input;
When the operator drags the product image displayed on the display screen of the display means to the arbitrary position on the relative coordinates by the display control means, the drag movement position by the manual input is set as the processing reference setting target. Position capturing means for capturing as a position;
Movement control means for moving the movable member to the setting target position taken in by the position taking-in means,
The display control unit is configured to display the product image displayed at the drag movement position until the workpiece clamping device that grips the workpiece releases the workpiece when the cutting process on the product image is completed. Continue to display on the display screen,
To already the segmented product image, at a predetermined distance set in advance by the parameter, that it is displayable automatically the aligned new product images above and below the left right of the the segmented product image A position setting device for a movable member in a plate material processing machine.

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