JP4369560B2 - Die mounting angle discrimination processing device for turret punch press - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mold mounting angle discrimination processing method and apparatus in a turret punch press.
[0002]
[Prior art]
Conventionally, in a turret punch press, the angle at which a die composed of a combination of a punch and a die is mounted on the upper and lower turrets is set such that the key groove 101 provided on the punch and die is placed on the turret as shown in FIG. Positioning is performed by matching the key 103 provided in the mold station. For example, the mold is provided with key grooves 101 in a plurality of directions so that the mold can be mounted at various angles.
[0003]
As shown in FIGS. 10A to 10C, the direction of the key 103 and the number and direction of the key grooves 101 vary depending on the mold and the turret, and can be customized.
[0004]
In the conventional automatic programming device, terminal, and NC device, only the presence / absence of the key 103 and the key groove 101 is considered in the turret, and the turret without the key 103 or the key groove 101 has a shape metal such as a corner or a long angle. Processing is done just to prevent the mold from being attached. That is, the angle at which the mold is mounted on the turret is configured to be freely set by the user.
[0005]
Note that the mold mounting angle (mold angle) is, for example, a long angle as shown in the right side of FIG. The direction is defined as positive.
[0006]
[Problems to be solved by the invention]
By the way, conventionally, the mold angle at which the mold is set in the turret is specified by the mold information attached to the NC data. However, the mold may not actually be set at the mold mounting angle set by the automatic programming device. For example, referring to FIG. 11, since the mold angle is 0 ° and the key groove 101 of the turret is 180 ° and 270 °, the mold cannot be mounted.
[0007]
In the above case, since the mold is symmetrical, the mold is mounted at a different angle, that is, by changing the direction in the plus direction by 180 ° as shown in FIG. Can be processed.
[0008]
However, as shown in FIG. 13, when the mold is not symmetrical, the mold cannot be mounted at a different angle, so the NC data is corrected according to the mountable angle of the mold. There is a need. However, conventionally, since the turret mounting angle of the mold cannot be discriminated on the automatic programming device side, there has been a problem that the above-mentioned problem is noticed only at the time of actual machining.
[0009]
In addition, when registering the holding mold in the memory of the control device, a plurality of mold mounting angle candidates can be set as shown in FIG. However, as described above, since the direction and number of the key grooves 101 differ depending on the turret station, there is a problem that the case where the key grooves 101 cannot be mounted as set occurs.
[0010]
For example, as shown in FIG. 15, when the direction of the turret key groove 101 is 0 ° and 90 °, the mold can be mounted at 0 ° and 90 °. However, as shown in FIG. 16, when the direction of the turret keyway 101 is 180 ° and 270 °, the mounting angle of the mold is 0 ° and 90 °, which cannot be mounted. .
[0011]
The present invention has been made to solve the above-mentioned problems, and its purpose is to prevent the creation of NC data for use at an angle at which the mold cannot be mounted, and at an angle at which the mold can actually be mounted. An object of the present invention is to provide a method and an apparatus for determining a mounting angle of a mold in a turret punch press capable of generating NC data.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, an apparatus for determining a mounting angle of a mold in a turret punch press according to the present invention according to claim 1 is provided with an upper turret having a plurality of turret stations for mounting punches and a plurality of turret stations for mounting dies. A holding information memory for storing turret station key information consisting of key or key groove angle information for each turret station in the lower turret and mold key information relating to each punch and each die key groove or key; A calculation processing unit for determining a mold mountable angle at which a mold composed of a combination of a punch and a die can be mounted on the upper and lower turrets based on the turret station key information and the mold key information; Whether the mold used can be mounted at a desired angle with respect to the mold mounting angle When it is determined that the mounting angle cannot be mounted in this determination, the determination unit determines whether or not the use mold can be mounted at a different angle, and when the determination unit determines that the replacement angle is not mounted. And a mountable station search determining unit for searching for a turret station to which the mold to be used can be mounted from the key information of the mold and the turret station key information .
[0013]
Therefore, in the automatic programming device, it is possible to prevent a mistake that NC data used at an angle at which the mold cannot be mounted is created. If the mold cannot be mounted, the alternative angle is calculated and the mountable station is searched, so that NC data is created at an angle at which the mold can actually be mounted.
[0014]
In addition, in the terminal and the NC device, it is determined whether or not the mold can be mounted on the turret at a specified angle. If the mold cannot be mounted, an alternative angle is calculated and a turret station that can be mounted is searched. .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a mold mounting angle discrimination processing method and apparatus in a turret punch press according to the present invention will be described below with reference to the drawings.
[0019]
Referring to FIG. 8, the turret punch press 1 according to the present embodiment has a frame structure in which both sides of the upper frame 9 are supported by side frames 5 and 7 erected on both sides of the base 3. Yes. A disk-shaped upper turret 11 provided with various types of punches P is detachably mounted on the lower portion of the upper frame 9. A lower turret 13 facing the upper turret 11 is rotatably mounted on the upper surface of the base 3, and a large number of dies D facing various types of punches P are arranged in an arc shape on the lower turret 13. And it is detachably mounted. The axis of the upper turret 11 and the axis of the lower turret 13 are arranged on the same axis, and the upper turret 11 and the lower turret 13 are controlled by an appropriate controller 15 described later such as an NC controller. , Rotated in the same direction synchronously.
[0020]
The positions of the die D and the punch P mounted on the right side in FIG. 8 of the upper turret 11 and the lower turret 13 are the processing positions, and the striker 17 is placed on the upper frame 9 above the punch P at the processing position. It can be moved up and down. The striker 17 is connected to a hydraulic cylinder 19 as a driving device provided in the upper frame 9 via, for example, a ram 21 (a striking member).
[0021]
By this ram 21, the punch P indexed and positioned below the ram 21 by the rotation of the upper turret 11 and the lower turret 13 is struck.
[0022]
The turret punch press 1 is provided with a work positioning device 23 for moving and positioning the work W in the front-rear and left-right directions. This movement positioning device 23 is located at the right end in FIG. A carriage base 25 that is movable in the axial direction (left-right direction in FIG. 8) is provided, and the carriage base 25 has a carriage that is movable in the X-axis direction (direction perpendicular to the paper surface in FIG. 8). 27 is provided. The carriage 27 is provided with a plurality of work clamps 29 for clamping the work W at appropriate intervals in the X-axis direction.
[0023]
The movement positioning device 23 is controlled by the control device 15 to position the workpiece W at a desired position between the punch P and the die D.
[0024]
Therefore, after the plate-like workpiece W is positioned between the punch P attached to the turret punch press 1 and the die D attached to the lower turret 13, the punch P is struck by the ram 21 so that the punch P Then, punching is performed on the workpiece W by the die D.
[0025]
A method and an apparatus for determining a mounting angle of a mold that constitutes a main part of an embodiment of the present invention will be described with reference to the drawings.
[0026]
Referring to FIG. 7, in the control device 15, an input device 33 such as a keyboard and a display device 35 such as a CRT are electrically connected to a CPU 31 serving as a central processing unit.
[0027]
Further, the CPU 31 has a machining program file 37 for storing data such as a machining program input from the input device 33, and the angle of the key 39 or key groove 41 for each turret station in the upper and lower turrets 11 and 13. A key information file comprising a station key information file 43 for storing station key information comprising information and a die key information file 45 for storing die key information relating to the key 39 or key groove 41 for each punch P and die D. 47 and a holding information memory 53 in which a mountable angle information file 51 for storing mountable angle information calculated by a calculation processing unit 49 described later based on the key information of the key information file 47 is stored is electrically connected. Has been. The possessed information memory 53 is preferably a non-volatile memory.
[0028]
In addition, the CPU 31 has a die composed of a combination of the punch P and the die D on the turret stations of the upper and lower turrets 11 and 13 based on the key information in the station key information file 43 and the die key information file 45. A calculation processing unit 49 for determining a mold mountable angle that can be mounted, and determining whether or not the mold to be used can be mounted at a desired angle with respect to the mold mountable angle determined by the calculation processing unit 49. When it is determined that the mounting cannot be performed, a determination unit 55 that determines whether or not the used mold can be mounted at a different angle is determined.
[0029]
Further, the CPU 31 determines the above-mentioned mold to be used from the key information of the mold key information file 45 and the station key information file 43 when the determination unit 55 determines that the mounting angle cannot be mounted even when the substitution angle is calculated. A wearable station search / determination unit 57 for searching for a wearable turret station and determining the presence or absence of the wearable turret station is electrically connected.
[0030]
With the above configuration, the mold key information and the turret station key information are input by the input device 33 and stored in the mold key information file 45 and the station key information file 43 in the possession information memory 53. Done.
[0031]
Next, the mold mounting angle discriminating process includes four processing steps: a mountable angle indexing process step, a mountable / unmountable discriminating process step, an alternative angle indexing process step, and a mountable station searching process step.
[0032]
Referring to FIG. 1, in the mountable angle indexing process step, a key information file 47 composed of a station key information file 43 and a mold key information file 45 is used to place a mold composed of a combination of punch P and die D on the upper side. The mold mountable angle that can be mounted on the lower turrets 11 and 13 is calculated and calculated and stored in the mountable angle information file 51.
[0033]
More specifically, referring to FIG. 2, the difference between the angle of the key 39 / key groove 41 of the turret station and the angle of the key 39 / key groove 41 of the mold is shown in FIG. Is calculated by the arithmetic processing unit 49. The obtained numerical value is the mounting angle at which the punch P and the die D can be mounted on the turret station.
[0034]
That is, the method for determining the mounting angle of the punch P is that the key position of the punch side turret station is 0 °, and the key groove 41 of the punch P is positioned at 0 ° and 90 °. Further, the punch P can be mounted by being rotated in the −90 ° direction (90 ° in the clockwise direction). Accordingly, the mounting angle of the punch P can be obtained by simple calculation as shown in FIG. 2 as 0-0 = 0 ° and 0-90 = 270 °. In the calculation, 0 ° is replaced with 360 °.
[0035]
On the other hand, the mounting angle of the die D is determined because the position of the key groove 41 of the die side turret station is 0 °, 90 °, 180 °, 270 °, and the position of the key 39 of the die D is 0 °. As shown in FIG. 2, the mounting angle of the die D is 0-0 = 0 °, 90-0 = 90 °, 180-0 = 180 °, 270-0 = 270 ° is required.
[0036]
Accordingly, a common angle between the mounting angle of the punch P and the mounting angle of the die D is the mounting angle of the mold. Therefore, the obtained mountable angle information is 0 ° and 270 °.
[0037]
Referring to FIG. 1 again, based on the information in the mountable angle information file 51 and the machining program file 37, the determination unit 55 performs a mountable / unmountable determination process step, an alternative angle indexing process step, and a mountable station search. Processing steps are performed.
[0038]
Referring to FIGS. 1 and 3, a machining program including data on a desired mounting angle of a mold to be used is input by the input device 33 and stored in the machining program file 37 of the possession information memory 53 (step S1). ).
[0039]
Referring to FIG. 3, in the mountable / unmountable determination processing step, a mold to be used based on the machining program is desired with respect to the mold mountable angle determined in the mountable angle calculating processing step. It is determined whether or not the angle can be attached (step S2).
[0040]
When the determination unit 55 determines that mounting is possible in the above mounting / non-mounting determination processing step, the mold mounting angle and the turret station are determined, and the process ends. However, when the determination unit 55 determines that the mounting is impossible, the process proceeds to a substitute angle indexing process (step S3).
[0041]
In the alternative angle indexing process, it is determined whether or not the mold used can be mounted on the turret station at the alternative angle (step S4). The substitute angle refers to an alternative angle at which the same machining can be performed. For example, the substitute angle of the 0 ° angle of the long-angle shape shown in FIG. 4 (A) is shown in FIG. 4 (B). As shown in FIG.
[0042]
The above-mentioned replacement angle varies depending on the shape of the mold, and FIG. 5 shows an example of the replacement angle of each mold. In FIG. 5, “ALL” is a mold having no directionality, and therefore all the mountable angles are substituteable angles. “Impossible” means a shape that cannot be mounted at an alternative angle.
[0043]
Referring to FIG. 6, an example of alternative angle determination is shown. If the angle obtained by adding or subtracting an integral multiple of the substitute angle for each mold shape as shown in FIG. 5 to the angle at which the mold is to be mounted matches the mold mountable angle, this matched angle Is the alternative angle.
[0044]
For example, the turret and the mold shown in FIG. 6A have mold mounting angles of 180 ° and 270 °, so the angle at which the mold is to be mounted as shown in FIG. 6B. When the angle is 90 °, it cannot be mounted. However, since the alternative angle of the long-angle mold is 180 ° as shown in FIG. 5, 90 ° (the angle to be mounted) + 180 ° = 270 ° is shown in FIG. 6C. It matches the mold mounting angle. Therefore, the substitute angle is 270 °.
[0045]
Referring to FIG. 3, when the determination unit 55 determines that the mounting is possible in the alternative angle indexing process, the mold mounting angle and the turret station are determined, and the process ends. However, when it is determined by the determination unit 55 that mounting is not possible, the process proceeds to a mounting station search process (step S5).
[0046]
In the mountable station search processing step, the mountable station search determination unit 57 searches for other turret stations to which a mold to be used can be mounted from the key information in the mold key information file 45 and the station key information file 43. (Step S6).
[0047]
A turret station that can be mounted in the above-described mountable station search processing step is searched by the mountable station search determination unit 57, and when it is determined that there is a mountable turret station, a mold mounting angle and a turret station are determined, The process ends. However, if it is not searched, it is determined that it is impossible to mount the mold at the set angle at which it is desired to mount, and as shown in FIG. 1, a mounting impossible (error) is displayed on the display device 35 (steps S7 and S8). ). In this case, instead of a mold that can be used instead, a mold mounting angle determination process is performed again from the beginning.
[0048]
As described above, in the automatic programming device, it is possible to prevent a mistake that NC data used at an angle at which the mold cannot be mounted is created. Further, when the mold cannot be mounted, the substitution angle is calculated and the mountable station is searched, so that NC data can be created at an angle at which the mold can actually be mounted.
[0049]
In addition, the terminal and NC device can determine whether or not the mold can be mounted on the turret at a specified angle. If it cannot be mounted, the alternative angle can be determined, or the turret station can be mounted. Search is possible.
[0050]
The present invention is not limited to the embodiment of the invention described above, and can be implemented in other modes by making appropriate changes.
[0051]
In addition, if the turret punch press with automatic mold change (ATC) function can change the angle at which the mold is mounted, the mold mounting angle given by the NC data or the used mold information will be It is necessary to determine whether or not it can be mounted. In this case, by using the mold mounting angle discrimination processing method and apparatus according to the embodiment of the present invention, not only the mounting / non-mounting determination but also the mounting angle is changed to a substitute angle when it is determined that mounting is impossible. It is possible to search for a turret station that can be attached and attach it to this turret station.
[0052]
【The invention's effect】
As can be understood from the description of the embodiment of the invention as described above, according to the invention of claim 1, the automatic programming device makes a mistake of creating NC data using the mold at an angle where the mold cannot be mounted. Can be prevented. Further, when the mold cannot be mounted, an alternative angle is calculated and a mountable station is searched, so that NC data can be created at an angle at which the mold can actually be mounted.
[0053]
In addition, the terminal and NC device can determine whether or not the mold can be mounted on the turret at a specified angle. If it cannot be mounted, the alternative angle can be determined and the turret station that can be mounted can be searched. It can be carried out.
[Brief description of the drawings]
FIG. 1, showing an embodiment of the present invention, is a flowchart showing an outline of a mold mounting angle discrimination process.
FIG. 2 is an explanatory diagram showing a specific example of mounting angle determination.
FIG. 3 is a flowchart showing details of a mold mounting angle determination process performed by a determination unit in FIG. 1;
FIG. 4 is an explanatory diagram showing a set angle and an alternative angle of a long-angle mold.
FIG. 5 is a list showing alternative angles of molds having various shapes.
6A and 6B show an embodiment of the present invention, wherein FIG. 6A is an explanatory view showing a mold mounting angle between a turret station and a mold (punch / die), and FIG. It is explanatory drawing which shows a setting angle, (C) is explanatory drawing which shows the alternative angle of a metal mold | die.
FIG. 7 is a block diagram of a control device.
FIG. 8 is a side view of the turret punch press used in the embodiment of the present invention.
FIG. 9 is a state explanatory view showing a conventional mounting state of a turret station and a die (punch / die).
FIG. 10 is an explanatory view showing a position of a key groove of a conventional mold (punch / die).
FIG. 11 shows a conventional example and is an explanatory view showing a state where it cannot be mounted depending on the position of the turret station and the key / key groove of the die (punch / die).
12 is an explanatory view showing a conventional example and showing a state in which the mold (punch / die) of FIG. 11 can be mounted at an alternative angle.
FIG. 13 shows a conventional example and is an explanatory diagram showing a state in which a mold (punch / die) cannot be mounted at either a set angle or an alternative angle.
FIG. 14 is an explanatory view showing the position of a key groove of a die (punch / die) according to another conventional example.
15 is an explanatory view showing a state in which mounting is possible at a set angle of the mold shown in FIG. 14;
16 is an explanatory view showing a state in which mounting is impossible at the set angle of the mold shown in FIG.
[Explanation of symbols]
1 Turret punch press 11 Upper turret 13 Lower turret 15 Controller 21 Ram (Pressing member)
23 Moving positioning device 31 CPU (Central processing unit)
37 Machining program 39 Key 41 Key groove 43 Station key information file 45 Mold key information file 47 Key information file 49 Operation processing unit 51 Mountable angle information file 53 Holding information memory 55 Determination unit 57 Mountable station search determination unit

Claims (1)

Turret station key information consisting of the key or keyway angle information for each turret station in the upper turret with multiple turret stations for mounting punches and the lower turret with multiple turret stations for mounting dies, and each punch And a holding information memory for storing the die key information relating to each keyway or key for each die, and a die comprising a combination of a punch and a die by the turret station key information and die key information to the upper and lower turrets A calculation processing unit for determining the mold mountable angle that can be mounted, and determining whether or not the mold to be used can be mounted at a desired angle with respect to the mold mountable angle determined by the calculation device and mounting by this determination Substitute angle calculation to determine whether the mold can be mounted at a different angle when it is not possible A determination unit for determining, and a mounting for searching for a turret station to which the mold to be used can be mounted from the key information of the mold and the turret station key information when the determination unit determines that substitution angle indexing is not mountable. A mold mounting angle discrimination processing apparatus in a turret punch press, comprising: a possible station search judgment unit .

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