JPH08108269A - Position setting device of torch - Google Patents

Abstract

PURPOSE: To make manual setting operation possible while an operator learns the setting position of a torch by displaying the selection information and position information of a torch based on operation information. CONSTITUTION: The converter 9 connected to NC controller 8 and arranged on a running saddle 2a has a selecting part to selectively decide a torch used for cutting among torches T1-T6 corresponding to the cutting position on a material 4 to be cut, further generates the selecting information generated by the selected part and the command information to reassemble NC cutting program to NC controller 8 based on the controlling information to control a square bar 5 to the prescribed direction and position corresponding to the arrangement of selected plural torches T and the position of square bar 5 corresponding to a bridge 2. Also, a display device 10 placed on a running saddle 2a is connected to a controller 8, in executing cutting, the selecting information of selected/not selected of a torch T operated by NC controller 8 and the position information to show a distance from the original point on a square bar 5 of each torch T are displayed on the display.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torch position setting device applied to a processing device for simultaneously driving a plurality of torches by NC control to perform the same processing on a workpiece.

[0002]

2. Description of the Related Art The applicant of the present invention has a patent application
As disclosed in Japanese Patent No. 5-273494, in a processing apparatus that simultaneously drives a plurality of torches by NC control to perform the same processing on a work material, the amount of protrusion from the frame of a bar carrying a torch carriage during processing. We have developed a technology that makes it possible to control so that

The configuration of the above technique is based on N programmed in advance.
The C machining program is reassembled based on the movement information for adjusting the position of the bar and the selection information of the torch most suitable for the machining position, and the machining is performed according to the reconstructed new NC machining program. To do.

According to this technique, since the optimum torch is selected and processed in accordance with the processing position on the material to be processed, the amount of protrusion of the bar from the frame is reduced and a large apparatus is installed. Even in this case, the dead space for moving the bar can be reduced, and the work can be performed safely near the device.

Further, even when the torch moves to the next cutting position, the optimum torch is selected at any time corresponding to the processing position on the work material, so that the transition time to the next cutting can be shortened and the work efficiency can be shortened. Can be improved.

[0006]

However, in the above-mentioned technique, when the moving device for moving the torch to the set position on the bar fails and the torch cannot be moved automatically, or when necessary, the manual operation is not possible. When the torch position is set by operation, the operator must calculate the set position of each torch based on the NC cutting program information preprogrammed, bar movement information, and torch selection information. There is a problem in that the time spent for this complicated calculation becomes enormous and the work efficiency decreases. In addition, there is a possibility that a processing error may occur due to a calculation error.

Further, in a processing apparatus in which a moving device for moving the above-mentioned torch to a set position on the bar is not provided from the beginning, it is necessary to successively perform the above calculation prior to performing the processing, which causes a problem that work efficiency is poor. there were.

The position setting device of the torch according to the present invention is N
By displaying the torch selection information and the torch position information on the display device based on the data calculated by the C control unit, the operator can easily know the torch setting position and set the torch manually. The purpose is to improve work efficiency.

[0009]

A torch position setting device according to the present invention is configured so that a bar for movably mounting a carriage on which a torch is mounted is protruded from a frame by a control performed by an NC controller. In the position setting device of the torch, the position of the torch with respect to the bar can be determined by selecting the optimum torch to be used corresponding to the processing position on the work material while moving in a predetermined direction and position. Position of the torch characterized by having a display device for displaying selection information of selection or non-selection of the torch and position information of the torch positioned with respect to the bar based on calculation information calculated by the control unit It is a setting device.

Further, it is preferable to provide a scale for setting the position of the torch in the longitudinal direction of the bar.

[0011]

Since the position setting device of the torch according to the present invention is configured as described above, it is positioned with respect to the selection information or non-selection information of the torch and the bar based on the calculation information calculated by the NC control section. By displaying the torch position information and the torch position information on the display device, when the torch position is manually set, the torch selection information and the torch position information displayed on the display device are easily known, and the torch interval is set. Can be set.

When a scale for setting the position of the torch is provided in the longitudinal direction of the bar, the position of the torch can be set accurately in accordance with the scale of the scale.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a torch position setting device according to the present invention applied to a gas cutting device will be described with reference to the drawings. FIG. 1 is a perspective view of a gas cutting device using the present invention, FIGS. 2 and 3 are flowcharts of a control system for setting a torch interval, and FIGS. 4A and 4B are perspective views showing a display device. is there.

First, the configuration of the gas cutting device E in the case where the position setting of the torch is automatically controlled by the NC control will be described, and then the moving device for moving the torch to the set position on the bar will fail. Alternatively, a procedure for manually setting the position of the torch in a gas cutting device that does not have the moving device will be described.

In FIG. 1, a frame 2 movably installed on a pair of rails 1 is a traveling saddle 2 which constitutes a part of the frame 2.
It is configured to move along the rail 1 on the material to be cut 4 by driving the traveling motor 3 provided in a.

A frame 2 which constitutes a part of the frame 2
traverse saddles 6a, 6b, 6c, which are provided so as to be orthogonal to the rails 1 and are movable on the frame 2b at predetermined intervals, are integrally joined to the square bar 5 at predetermined positions. It is configured to The traverse saddle 6b is provided with a traverse motor 7, and by driving the traverse motor 7, the square bar 5 can move in parallel to the frame 2b with respect to the frame 2b.

Carriages C1 to C6 are mounted on the corner bars 5 so as to be movable along the corner bars 5, and the respective carriages are driven by driving the positioning motors M1 to M6 provided on the respective carriages. It is possible to move C to a predetermined position. Each of the carriages C is provided with a torch T1 to T6, and each torch T is provided with a hose (not shown) for supplying a preheating gas and a cutting oxygen gas, and a predetermined device required for cutting. It is configured.

A scale 5a is mounted on the side surface of the square bar 5 to indicate the distance from the origin set in the square bar 5. The position of each torch is based on the scale of the scale 5a. Can be set by recognition or manual operation.

The traveling motor 3, the traverse motor 7, and the positioning motors M1 to M6 are provided with rotary encoders 3a, 7a and M1a to M6a, respectively.
It is configured to detect each position. Further, the traveling motor 3, the traverse motor 7, the positioning motors M1 to M6, and the rotary encoders 3a, 7a, M.
Each of 1a to M6a is connected to the NC control unit 8 and is configured to be controlled according to a predetermined NC disconnection program.

The NC controller 8 mounted on the traveling saddle 2a is an NC for performing a predetermined cutting on the material 4 to be cut.
An automatic plumbing device that programs a cutting program, an operation unit that reassembles the NC cutting program according to a program reassembly command generated by a converter 9 described later, and an operation execution unit that executes the program reassembled by the operation unit. It also has an input unit for inputting or changing cutting information for the NC cutting program.

The NC control unit 8 is connected to an operation panel (not shown) for starting, stopping or manually operating the gas cutting device E.

Further, the NC control unit 8 operates the rotary encoders 3a, 7a in accordance with the NC cutting program.
a, M1a to M6a based on the signals generated, the driving motor 3, the traverse motor 7 and the positioning motors of M1 to M6, including the drive control of the gas to control the gas flow rate to be supplied to the torch T when cutting The cutting device E is configured to perform a predetermined control.

The traveling saddle 2 is connected to the NC control unit 8.
The converter 9 installed on a has a selecting section for selectively deciding the torch T to be used for cutting from among the torches T1 to T6 corresponding to the cutting position on the material to be cut 4, and the selecting section is generated. The NC control unit based on selection information to be selected and control information for controlling the corner bar 5 in a predetermined direction and position in accordance with the arrangement of the selected plurality of torches T and the position of the corner bar 5 with respect to the frame 2. 8 is configured to generate the program reassembling command information for reassembling the NC disconnection program.

Further, the NC control unit 8 has a traveling saddle 2a.
The display device 10 placed on the top of the torch T is connected, and when the cutting process is performed, the selection information of the selection and non-selection of the torch T calculated by the NC control unit 8 and the corner bar 5 of each torch T.
The position information indicating the distance from the origin can be displayed on the display.

The procedure of actually cutting the cutting figures P1 to P5 arranged on the material 4 to be cut by using the gas cutting apparatus E configured as described above will be described. Based on a preset NC cutting program. The NC control unit 8 and the converter 9 first execute control for cutting the cutting figures P1, P2, P3 according to the flow chart of the control system as shown in FIGS.

For the NC cutting program S1 which is programmed in advance, the cutting figures P1 to P3 and P4, P are cut in S2.
The number of torches and torch interval information used for cutting each of the figures 5 are input to the NC control unit 8 and the conditions of the material to be cut, the rail width W, the length L of the square bar, the total number of torches, the minimum torch interval, etc. Material information and cutting device standard information S3
Is also input to the NC control unit 8, the NC control unit 8
Drives the traverse motor 7 according to the NC cutting program to move the square bar 5 to a predetermined position.

Next, the NC controller 8 controls the traverse motor 7
The position of the square bar 5 with respect to the frame 2 is detected by a rotary encoder 7a provided in the frame 2 to control the amount of protrusion of the square bar 5 from the frame 2. That is, the amount of movement of the traverse motor 7 provided at the center of the square bar 5 from the origin set at the center of the frame 2b is detected by the rotary encoder 7a, and the NC control unit 8 compares by the formula shown at S4. . That is, the moving amount of the square bar 5 is the rail width W.
Is greater than one half of the difference between the length L of the square bar and S, S
At 5, the angle bar 5 is moved by a half of the amount of movement of the angle bar 5 in the direction opposite to the direction of movement of the angle bar 5.

After that, in S6, the cutting figures P1 to P3 on the material to be cut 4 are selected based on the torch number 3 used for cutting by the selection unit of the converter 9 in S2 and the predetermined torch interval information.
The torch T1, T2, T3 at the optimum position for cutting is selected and determined, and based on the selection information and the moving amount information of the corner bar 5 in S5, the converter 9 sets S1.
The NC control unit 8 issues a command to reassemble the NC disconnection program
The NC control unit 8 reassembles the NC disconnection program of S1.

According to the reassembled program, S7
Then, the NC control unit 8 uses the rotary encoders 7a, M1.
Positioning motors M1 to M based on position information of a to M3a
3 are driven to dispose and fix the torches T1 to T3 at predetermined positions. At this time, the torch T to be selected is determined from the current arrangement configuration of all the torches T, and the optimum torch T is selected. Therefore, adjacent torches T may be selected, or a torch T that is discontinuous is selected. In some cases. Further, when the selected torch T is moved, if another torch T is located at a position where the torch T hinders the movement, the torch T which hinders the movement is also moved to a position at which the torch T is also avoided.

Next, in accordance with the reassembled NC cutting program in S8, the NC control unit 8 drives the traverse motor 7 and the traveling motor 3 in S9, and drives the torches T1 to T3 to perform a predetermined cutting to form a congruent cutting pattern. Cut P1 to P3.

In S4, the moving amount of the square bar 5 is the rail width W.
If it is smaller than one half of the difference between the length L of the square bar and the length L of the square bar, the moving amount of the square bar 5 is set to 0 in S10. Ie corner bar 5
It is determined that it is not necessary to correct the position of.

After that, in S6, the selection unit of the converter 9 is optimal for cutting the cutting figures P1 to P3 on the material 4 to be cut based on the torch number 3 used for cutting specified in S2 and the predetermined torch interval. The torches T1, T2, T3 at different positions are selected and determined, and the converter 9 transmits a command to reconfigure the NC cutting program of S1 to the NC control unit 8 based on these selection information, and the NC control unit 8 sends the command to S1. Reassemble the NC disconnection program.

According to the reassembled program, S7
Then, the NC control unit 8 uses the rotary encoders 7a, M1.
Positioning motors M1 to M based on position information of a to M3a
3 are driven to dispose and fix the torches T1 to T3 at predetermined positions. Next, in accordance with the NC cutting program reassembled in S8, the NC control unit 8 drives the traverse motor 7 and the traveling motor 3 in S9, and also drives the torches T1 to T3 to perform a predetermined cutting to perform congruent cutting figures P1. Cut P3. After the cutting is completed, the driving of the torches T1 to T3 is stopped.

Next, in S11, when the cutting figures P4 and P5 are to be cut, when the number of torches to be used for the next cutting and the torch interval are designated in the preset NC cutting program in S12. To S14. If not specified, the number of torches to be used for the next cutting and the torch interval are again specified in S2 in S13, and then to S14. In this case, the number of torches used for cutting and the predetermined torch interval are specified.

Next, similarly to the above, the NC control unit 8 detects the position of the square bar 5 with respect to the frame 2, and in S14 the square bar 5 is detected.
Is greater than half the difference between the rail width W and the length L of the square bar, in S15, half the amount of movement of the square bar 5 is moved in the moving direction of the square bar 5. The corner bar 5 is moved in the opposite direction.

After that, in S16, the number of torches used by the selector of the converter 9 for cutting specified in S2 or S13 is 2.
And the torch T4 at the optimum position for cutting with respect to the cutting figures P4 and P5 on the material 4 to be cut, based on the predetermined torch spacing information,
While selecting and determining T5, the converter 9 transmits a command for reassembling the NC cutting program of S1 to the NC control unit 8 based on these selection information and the movement amount information of the square bar 5 in S14, The NC control unit 8 reassembles the NC disconnection program of S1.

According to the reassembled program, S17
Then, the NC control unit 8 drives the positioning motors M4 and M5 to arrange and fix the torches T4 and T5 at predetermined positions, respectively. Next, in accordance with the reassembled NC cutting program in S18, the NC control unit 8 drives the traverse motor 7 and the traveling motor 3 in S19, and also drives the torches T4 and T5 to perform a predetermined cutting to perform congruent cutting figures P4 and P5. Disconnect.

In S14, the moving amount of the square bar 5 is the rail width W.
If the difference between the distance and the length L of the square bar is smaller than half,
At 20, the moving amount of the square bar 5 is set to 0. That is, it is determined that it is not necessary to correct the position of the corner bar 5.

After that, in S16, the number of torches used by the selector 9 of the converter 9 for cutting specified in S2 or S13 is 2.
And a cutting pattern P on the material 4 to be cut based on a predetermined torch interval.
Torch T4, T5 at the optimum position for cutting P4 and P5
And the converter 9 transmits a command for reassembling the NC cutting program for S1 to the NC control unit 8 based on these information, and the NC control unit 8 reassembles the NC cutting program for S1.

According to the reassembled program, S17
Then, the NC control unit 8 drives the positioning motors M4 and M5 to arrange and fix the torches T4 and T5 at predetermined positions, respectively.

Then, in accordance with the reassembled NC cutting program in S18, the NC control unit 8 drives the traverse motor 7 and the traveling motor 3 in S19, and also drives the torches T4 and T5 to perform a predetermined cutting to form a congruent cutting pattern. Cut P4 and P5. After the cutting is completed, the driving of the torches T4 and T5 is stopped.

Similarly, by repeating S11 to S21, it is possible to sequentially move to the next cutting position.

Next, a procedure will be described in the case where the moving device for moving the torch to the set position on the bar fails or when the position of the torch is manually set in the gas cutting device without the moving device. .

For example, the above-mentioned positioning motors M1 to M6
In the case where the drive system of the torch T1 to T6 is mounted and the carriages C1 to C6 respectively mounting the torches T1 to T6 are manually moved on the corner bar 5 to set the positions of the torches T1 to T6, the apparatus E is provided. The operation panel (not shown) is operated to switch to manual operation.

At this time, on the display of the display device 10, as shown in FIGS. 4 (a) and 4 (b), prior to performing the cutting process, the torch used for the cutting process transmitted from the NC control unit 8 is displayed. The number and the torch interval are displayed.

Then, the operator manually moves the carriages C1 to C6 mounted with the torches T1 to T6 respectively on the corner bar 5 according to the position setting information of the torch displayed on the display device 10, and mounts the carriages C1 to C6 on the corner bar 5. The position of each torch T can be set according to the scale of the scale 5a, and the torch T can be fixed on the square bar 5 by a predetermined fixing means.

The fixing means may be constituted so as to fix the pinion provided on the drive shaft of the positioning motor M that engages with the rack provided on the square bar 5, or the square bar 5 and the carriage C may be mutually attached. It is also possible to operate and fix the locking member for locking.

A procedure for manually setting the position of the torch T using the control system shown in FIGS. 2 and 3 will be described.

Pre-programmed N as described above
C cutting program S1 to S2 cutting figures P1 to P
3, the torch number and torch interval information used for cutting each figure of P4 and P5 are input to the NC control unit 8, and the material information to be cut and the standard information S3 of the cutting device are also input to the NC control unit 8. Then, the NC control unit 8 causes the N
The corner bar 5 is moved to a predetermined position according to the C cutting program.

Next, similarly to the above, the positions of the square bars 5 with respect to the frame 2 are adjusted by S4 and S5. After that, S6
Based on the torch number 3 used for cutting specified by the converter 9 and the predetermined torch spacing information, the torch at the optimum position for cutting the cutting figures P1 to P3 on the material 4 to be cut. Based on the selection information of T1, T2 and T3 and the selection information and the movement amount information of the angle bar 5 in S5, the converter 9 issues a command to reconfigure the NC cutting program of S1. 8, and the NC control unit 8 reassembles the NC disconnection program of S1.

Then, the NC controller 8 transmits the selection information of the torch T to be used and the position information of the torch T to the display device 10, and the display of the display device 10 displays the information as shown in FIG. Is displayed. That is, the torch number used at this time indicates that the 1st, 2nd, and 3rd torches indicated by "*" are used, and the set position of each torch T is to the right of each torch number. Is displayed. Here, the 1st torch (torch T1) is 100mm, the 2nd torch (torch T2) is
It shows that the 200mm and 3rd torches (torch T3) are set to 300mm respectively. Further, since the set positions of other torches not used are also displayed on the display, the standby positions of these torches can also be known.

An operator manually operates the carriage C in accordance with the information obtained by the display device 10 to make the corner bar 5
The torch T is moved along the position of the torch T in accordance with the scale of the scale 5a, and the torch T is fixed to the square bar 5 by the fixing means.

Next, when the operator operates the machining start switch of the operation panel (not shown), the NC control unit 8 drives the traverse motor 7 and the traveling motor 3 in S9 according to the reassembled NC cutting program in S8, and the torch T1 to
T3 is driven to perform predetermined cutting and congruent cutting figures P1 to P1.
P3 can be cut. After the cutting is completed, the operation panel is operated to stop the driving of the torches T1 to T3.

Next, in S11, when shifting to the cutting of the cutting figures P4 and P5, a series of control is performed in the same manner as described above,
In S16, the selection unit of the converter 9 is optimal for cutting the cutting figures P4 and P5 on the material 4 to be cut based on the torch number 2 used for cutting specified in S2 or S13 and the predetermined torch interval information. Based on the selection information of the torches T4 and T5 of the position and the selection amount information and the movement amount information of the square bar 5 in S14, the converter 9 issues a command to the NC control unit 8 to reassemble the NC cutting program of S1. Then, the NC control unit 8 reassembles the NC disconnection program of S1.

Then, the NC control unit 8 transmits the selection information of the torch T to be used and the position information of the torch T to the display device 10, and the display of the display device 10 displays the information as shown in FIG. 4 (b). The torch number used indicates that the 4th and 5th torches indicated by "*" are used, and the set position of each torch T is shown to the right of the torch number. Here, the 4th torch (torch T4) is 500mm, and the 5th torch (torch T5) is 700mm. The standby positions of other torch setting positions are also displayed on the display.

After the operator releases the fixing means of the carriage C according to the information obtained by the display device 10, the torch T is moved to the scale 5a by moving the torch T along the square bar 5 by the manual operation as described above. They are aligned and positioned, and the torch T is fixed to the square bar 5 by the fixing means.

Next, when the operator operates a machining start switch on the operation panel (not shown), the NC control unit 8 drives the traverse motor 7 and the traveling motor 3 in S19 according to the reassembled NC cutting program in S18, and the torch T4,
T5 is driven to perform a predetermined cutting, and a congruent cutting figure P4,
P5 can be cut. After the cutting is completed, the operation panel is operated to stop the driving of the torches T4 and T5.

By repeating the same operation as described below,
Even if the moving device that moves the torch to the set position on the bar breaks down, the position of the torch can be easily set by the manual operation to perform the cutting process.

Further, also in the gas cutting device having no moving device, the operator moves the torch holder holding the torch along the square bar 5 by the manual operation according to the information obtained by the display device 10 as described above. Then, each torch T is positioned in accordance with the scale of the scale 5a, and the torch T is fixed by a fixing means configured to operate and fix a locking member that locks the square bar 5 and the torch holder with each other. By fixing to the square bar 5, it is possible to easily set the position of the torch by a manual operation as described above and perform the cutting process.

In the above embodiment, the position information of each torch T displayed on the display device 10 is displayed as the distance from the origin of the corner bar 5, but the distance between the torches T may be displayed. . Alternatively, only the position information of the selected torch T may be displayed.

The display device 10 is a CRT, liquid crystal, LE
It can be configured by applying a display device such as D.

In the above embodiment, the graduation scale 5a is attached to the corner bar 5 so as to be integrated. However, the torch T is positioned by setting a separate scale on the corner bar 5 every time the torch T is set. It's okay.

Further, although the gas cutting device is used in the above embodiment, the invention can be applied to other gas processing device, plasma processing device or laser processing device.

[0064]

The position setting device for a torch according to the present invention is
Since it has the above-described structure and operation, it is possible to carry out processing by simultaneously driving a plurality of torches by controlling the protruding amount of the bar protruding from the frame to the minimum. Further, since the optimum torch is selected and arranged at the processing position on the work material, it is possible to shorten the moving time when shifting to the next cutting by selecting the torches closest to the processing position.

If the moving device for moving the torch to the set position on the bar fails, or even if the moving device is a processing device not equipped from the beginning, torch selection information and torch position information to be used. By displaying on the display device, the operator can know the selection information of the torch used for processing and the position information of the torch by the display device, and each torch can be manually operated based on these information. Each torch can be moved and set at a predetermined position on the bar.

Therefore, it is not necessary for each operator to calculate the set position of the torch based on the NC cutting program information pre-programmed, the movement information of the bar, and the selection information of the torch as in the prior art, and the operator spends this calculation. The work efficiency is improved because the time can be reduced. Further, it is possible to prevent processing defects due to calculation mistakes.

[Brief description of drawings]

FIG. 1 is a perspective view of a gas cutting device using the present invention.

FIG. 2 is a control system flowchart for setting a torch interval.

FIG. 3 is a flowchart of a control system for setting a torch interval.

4A and 4B are perspective views showing a display device.

[Explanation of symbols]

1 ... Rail, 2 ... Frame, 2a ... Traveling saddle, 2b ... Frame, 3 ... Traveling motor, 3a ... Rotary encoder, 4 ... Cut material, 5 ... Square bar, 5a ... Scale scale,
6a, 6b, 6c ... traverse saddle, 7 ... traverse motor, 7
a ... rotary encoder, 8 ... NC control unit, 9 ... converter, 10 ... display device, T1-T6 ... torch, C1
~ C6 ... Carriage, M1-M6 ... Positioning motor,
M1a to M6a ... Rotary encoder, P1 to P6
… Cutting pattern, E… Gas cutting device

Claims (2)

[Claims] 1. A bar on which a carriage equipped with a torch is movably mounted is moved in a predetermined direction and position by control performed by an NC control unit so as to minimize the amount of protrusion from the frame, and at the same time, on a workpiece. In a torch position setting device capable of selecting an optimum torch corresponding to a processing position to determine the position of the torch with respect to the bar, selection of the torch based on calculation information calculated by the NC control unit. Alternatively, the torch position setting device is provided with a display device for displaying non-selected selection information and position information of the torch positioned with respect to the bar. 2. The torch position setting device according to claim 1, further comprising a scale for setting the position of the torch in the longitudinal direction of the bar.