JP2891366B2 - Automatic welding equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic welding device.

(Prior Art) In an automatic welding apparatus, it is important to maintain a proper welding current.

Therefore, conventionally, for example, a pattern of a trapezoidal current waveform is illustrated on an operation panel, and 7
A segment LED display was attached to display the current status during execution, such as energization time and current value.

In recent years, a welding device has been automated, and performs a torch operation and current control based on, for example, a welding program set in an NC device. In this case, it is necessary to check what current pattern is set before executing the program.

For this reason, conventionally, welding was performed on a trial basis,
The welding conditions were appropriately changed by trial and error.

(Problems to be Solved by the Invention) However, the conventional automatic welding apparatus as described above has a problem that the operation panel becomes large in order to graphically display the welding current pattern on the operation panel. .

In addition, the program check requires a trial welding operation, and thus has a problem in that the number of man-hours increases.

Therefore, an object of the present invention is to provide an automatic welding apparatus capable of improving work efficiency by appropriately displaying a current pattern.

(Means for Solving the Problems) An automatic welding apparatus according to the present invention for solving the above problems,
As shown in FIG. 1, the mode switching means 1 is capable of selecting a welding execution mode and a program check mode from various set modes, and a command means 2 for performing various commands such as designation of a program number. A source program selecting unit 3 for selecting a preset source program for the program instructed by the instructing unit 2, and an object for creating an object program by appropriately applying a macro program to the source program selected by the unit 3 Program creating means 4, operation controlling means 5 and current controlling means 6 for performing operation control and current control of the welding means based on the object program, respectively.
When the mode switching means 1 is switched to the welding execution mode, the current pattern and the current value of the welding step to be executed are displayed on the display screen 7, and the mode switching means 1 is switched to the program check mode and the command means Display control means 8 for simultaneously displaying, on the display screen 7, the current pattern and current value of the specified welding step and the operation pattern indicating the torch attitude and torch coordinates when the predetermined welding step is designated from 1 It is.

(Example) Hereinafter, an example of the present invention will be described.

FIG. 2 is a block diagram showing a hardware configuration of an automatic welding machine according to one embodiment of the present invention.

As shown in the figure, the automatic welding machine of the present embodiment has a CRT 10 and a memory card 1 that constitute the display screen 7 on a motherboard 9.
1, consisting of a programmable controller (PC) 12 connected.

A relay board 13 is connected to the PC 12, and the relay board 13 includes actuators and sensors of a machine 14, a welding power source 15, and a welding detector connected to the welding power source 15.
16, other MDI panel 17 and Hanod box 18 are connected.

Further, the PC12 is connected to position control modules PCL-X, PCL-Y, PCL-Z of orthogonal three axes XYZ, and to each module via a servo amplifier S-amplifier-X, -Y, -Z. servomotor M _X, M _Y, M _Z are connected respectively. Each of the motors M _X , M _Y , M _Z has an encoder E _X ,
E _Y, E _Z is provided, in particular motor M _Z, brake B for tacho generator TG and the braking control for speed detection are provided.

A memory (RAM) is provided in the motherboard 9,
Here, the source program edited by the program editing is set. This source program is a memory card
11 or may be stored in an external memory (not shown).

The PC 12 executes an actual welding operation according to an object program created by applying a macro program to the source program.

As shown in detail in FIG. 3, the CRT10 and the MDI panel
The screen 10A and the operation surface 17A of 17 are integrally formed and arranged at a position that is easy for the operator to observe and operate. On the operation surface 17A of the MDI panel, program editing such as return to origin, program, manual operation, automatic operation mode selection button, arc welding selection button, single step designation button, reset button, numerical button, cursor movement button, and other storage buttons Required switches, such as a user button, a start button, a stop button, and an emergency stop button.

In the automatic welding machine having the above-described configuration, a predetermined program is set in the memory of the motherboard 9 by inputting predetermined data from the MDI panel 17 using the screen 10A of the CRT 10 as an interactive screen, and the motors M _X , In addition to M _Y and M _Z , various actuators and a welding power source 15 are controlled, and predetermined welding is performed.

The welding execution mode is selected by turning on the automatic operation button, and the program checklist mode is determined based on the operation status of the minus (−) button following this operation.

 FIG. 4 shows an example of the screen display.

First, when the automatic operation button is selected in FIG. 3, the automatic operation mode is set, and when the start button is turned on, welding is performed.

Therefore, in this example, step 401 is provided, and when the minus button is turned on here, the program shifts to the program check mode.

In the automatic operation mode, the current pattern of the welding step to be executed is displayed in step 402 as shown in FIG. In this example, since the welding program is edited as a sequence program, the current pattern is displayed for the first step “001”.

The current pattern is initial (0.2), up (0.2), down (0.8),
On the time axis of the crater (0.1) in seconds, the initial (5),
It shows that a current is output in units of amps of the pulse (40), the base (10), and the crater (5). The current override value (100) is expressed in%, and the cleaning width (1) is expressed in mm. This display content,
Updated during each step during welding.

Next, assuming that the minus button is turned on in step 401 and the program check mode is selected, step 40
In 3, a program check screen is displayed.

 An example of the program check screen is shown in FIG.

As shown, the program check screen is initially displayed for step 001.

This screen is different from the screen shown in FIG. 5 in that the torch posture (for example, horizontal) and the torch coordinates (for example, X = 21.98, Y = 0.0)
0, Z = −223.12).

Any of these additional displays may be any as long as they indicate the welding operation pattern. For example, a graphic indicating the torch attitude and the torch position may be displayed. With these screen contents, the operator can check the contents of the program.

Step 404 indicates that if the minus button is turned on after the end of the program check, it is possible to arbitrarily shift to the welding execution mode.

Step 405 indicates that the welding step can be moved forward or backward by operating the cursor button.

At step 405, the up and down cursor buttons are operated, and at step 40
When the welding step is moved forward or backward through 6,407, a current pattern and an operation pattern for the welding step are displayed in step 403.

As described above, in this example, the current pattern can be checked in the welding execution mode in step 402,
At step 405, a program check can be performed.

In this example, as shown in FIG.
Since it can be displayed on the screen 10A of 0 and an appropriate numerical value can be added to an arbitrary position of this pattern, it is possible to flexibly cope with pattern deformation.

In addition, as shown in FIG. 6, since the operation pattern is displayed in addition to the current pattern, the source (sequence) program expressed by the current pattern and the operation pattern can be appropriately expressed, and by following the welding step, it can be easily performed. ,
Program check can be performed reliably.

In the above embodiment, the color CRT is not described, but it is needless to say that a color CRT can be used to appropriately colorize the screen to make the check screen easier to see. In addition, the configuration of the check screen can be appropriately changed.

The present invention is not limited to the above-described embodiment, and can be implemented in other appropriate modes.

〔The invention's effect〕

As understood from the above description of the embodiment, in the present invention, in the program check mode, the current pattern and current value of the welding step and the posture and coordinate position of the welding torch are simultaneously displayed on the display screen. In addition to checking the current pattern and its current value, the position and orientation of the welding torch can be checked at the same time, and the program check of the welding operation can be easily performed.

When the mode switching means is switched to the welding execution mode, the current pattern and the current value of the welding step to be executed are displayed on the display screen, so that the current pattern and the current value can be known.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of the present invention, FIG. 2 is a block diagram showing a hardware configuration of an automatic welding apparatus according to one embodiment of the present invention, FIG. 3 is an explanatory diagram of an operation panel, and FIG. FIG. 5 is an explanatory diagram of a display screen in a welding execution mode, and FIG. 6 is an explanatory diagram of a display screen in a program check mode. DESCRIPTION OF SYMBOLS 1 ... Mode switching means, 2 ... Command means, 3 ... Sos program selection means 4 ... Object program creation means, 5 ... Operation control means 6 ... Current control means, 7 ... Display screen, 8 ... Display control means

Claims (1)

(57) [Claims] 1. A mode switching means (1) for selecting a welding execution mode and a program check mode from various set modes, and a command means (2) for performing various commands such as designation of a program number. Source program selecting means (3) for selecting a preset source program for a program instructed by the command means (2); and an object program by appropriately applying a macro program to the source program selected by the means (3) Means (4) for creating an object program, operation control means (5) and current control means (6) for respectively controlling the operation and current of the welding means based on the object program, and the mode switching means ( When 1) is switched to the welding execution mode, the current pattern of the welding step to be executed from now on is changed. And the current value is displayed on a display screen (7). When the mode switching means (1) is switched to the program check mode and a predetermined welding step is designated by the command means (1), the current pattern and the current pattern of the step are specified. An automatic welding apparatus comprising: display control means (8) for simultaneously displaying an operation pattern indicating a current value, a torch attitude, and torch coordinates on the display screen (7).