JP2517142Y2 - Automatic welding condition setting device for spot welders - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a welding condition automatic setting device in a spot welding machine capable of automatically setting welding conditions in the spot welding machine.

(Prior Art) Conventionally, when setting welding conditions in a spot welding machine, an operator selects welding conditions such as pressing force, welding pressure and charging voltage from an instruction manual. Further, the gauge pressure is read from the pressure gauge curve, and the pressure reducing valve, the pressure switch, the charging voltage, etc. are manually set to perform the welding operation. Moreover, after the welding operation, the welding conditions such as the pressing force and the output are edited by operating the knobs.

(Problems to be solved by the invention) By the way, as described above, when deciding the welding conditions, only a few conditions are described in the instruction manual or the like. In other words, the only way to determine the welding conditions was by analogy with several welding conditions. Therefore, it was very difficult for a person who has little experience with a spot welder to determine welding conditions.

In addition, since the pressure reducing valve and the pressure switch are manually turned to adjust the pressing force and welding pressure, there are variations and when the same workpiece is welded after the conditions have been changed due to the lack of a memory function, the conditions must be set again. I had to find it.

The purpose of this invention is to improve the above-mentioned problems, so that the welding conditions can be automatically set by inputting the material, plate thickness, part number, etc. of the work, so that even an inexperienced welding person can easily perform the operation. To provide an automatic welding condition setting device for a spot welding machine.

[Structure of the Invention] (Means for Solving the Problems) In view of the conventional problems described above, the present invention provides a spot welding machine including an input device, a display device, an IC memory card, and a welding condition setting memory. In the welding condition automatic setting device in, the IC memory card has data corresponding to each item on the automatic setting screen for displaying items of welding method, product number, product name, material, plate thickness and electrode shape, and product number, product name,
The data corresponding to each item on the product number setting screen that displays the material, plate thickness, and electrode shape items, and the product number, product name, material, plate thickness,
Data corresponding to each item on the welding operation screen that displays the electrode shape and welding condition items, as well as the product number, product name, material, plate thickness,
The data corresponding to each item of the manual setting screen that displays the items of electrode shape, pressing force, welding pressure, and output are stored in the memory, and the data of each item displayed on the manual setting screen can be corrected. In addition to the above, the welding conditions of the product number called on the welding operation screen are stored in the welding condition setting memory, and welding is performed under the welding conditions stored in the welding condition setting memory.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 6, an upper support base 5 is provided on the upper front side of the main body frame 3 in the spot welding machine 1, and a lower support base 7 is provided on the lower front side of the main body frame 3.
Is provided.

An upper electrode rod gripping portion 9 is attached to the upper support base 5, and an upper electrode rod 13 having an upper electrode 11 is gripped at a lower end of the upper electrode rod gripping portion 9.

On the other hand, on the upper part of the lower support base 7, a lower horn fixing bracket 15
The lower horn fixing bracket 15 has a sixth
In the figure, a cylindrical lower horn 17 extending in the left-right direction
Is mounted so that it can move in the left-right direction.
It is fixed at 19. A lower electrode rod 23 having a lower electrode 21 is held at the upper tip of the lower horn 17.

A welding transformer 25 is provided, for example, on the upper portion of the rear portion of the main body frame 3, and the welding transformer 25 lowers the voltage supplied from the primary side by about 3 to 20 V in order to obtain a high current required for welding. It is converted into voltage.

With the above configuration, for example, the upper electrode 11 is lowered to sandwich the work to be welded between the upper electrode 11 and the lower electrode 21,
When the upper electrode 11 and the lower electrode 21 are energized via the welding transformer 25, the work is welded by the resistance heat at that time.

The main body frame 3 is provided with a control device 27 for automatically setting welding conditions. More specifically, as shown in FIG. 1, the CPU 29 in the control device 27 is connected to an input device 31, such as a keyboard, for inputting the material, plate thickness, electrode diameter, etc. of the work to be welded. In addition, a display device 33 such as a CRT that is switched and displayed on the automatic setting screen, the part number setting screen, the welding operation screen, or the manual setting screen as necessary is connected.

An IC memory card 35 in which data pages and user pages are stored in advance is connected to the CPU 29. A data memory 37 for reading the data page stored in the IC memory card 35 and a user memory 39 for reading the user page stored in the IC memory card 35 are connected. In addition, CP
A welding condition setting memory 41 for temporarily storing the automatically set welding conditions is connected to U29.

With the above configuration, when the display device 33 is switched to the automatic setting screen, the data page of the IC memory card 35 is read into the data memory 37 and the automatic setting screen is displayed on the display device 33 as shown in FIG. It When the welding method, product number, product name, material, plate thickness, electrode shape, etc. are entered or selected from the input device 31 on this automatic setting screen, the pressing force,
Welding pressure, output, etc. are automatically transferred to the user memory 39.

Next, when the display device 33 is switched to the product number setting screen, the product number setting screen is displayed on the display device 33 as shown in FIG. On this product number setting screen, the contents of each product number in the user memory 39 can be listed and searched.

Next, when welding is performed, when the display device 33 is switched to the welding operation screen, the welding operation screen is displayed on the display device 33 as shown in FIG. When the product number input in advance on this welding operation screen is called, the welding conditions of the called product number are automatically set and temporarily stored in the welding condition setting memory 41. Therefore, when welding is performed, the welding conditions are called from the welding condition setting memory 41 and the workpiece is welded by the spot welding machine 1.

Further, when performing correction work such as pressurizing force, welding pressure, and output, when the display device 33 is switched to the manual setting screen, the manual setting screen is displayed on the display device 33 as shown in FIG. When correction work such as pressing force, welding pressure, output, etc. is performed on this screen, it is automatically transferred to the user memory 39 and the numbers in the user memory 39 are automatically corrected. However, in order to rewrite the user page stored in the IC memory card 35, it is necessary to perform the writing operation.

Further, the user page in the IC memory card 35 can be read into the user memory 39, and conversely, can be written out from the user memory 39. Therefore, IC memory card 35
You can create an infinite number of programs by using multiple.

In this way, the material of the work,
The welding conditions can be automatically set by inputting the plate thickness, the electrode shape, and the like from the input device 31. Therefore, even an inexperienced person who does not have a long experience of an instruction manual or spot welding can easily perform automatic setting and automatic selection.

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

[Effects of the Invention] As can be understood from the above description of the embodiments, the present invention is, in short, an input device (31), a display device (33), and an IC.
In a welding condition automatic setting device in a spot welding machine including a memory card (35) and a welding condition setting memory (41), the IC memory card (35) includes a welding method, a product number, a product name, a material, a plate thickness and Data corresponding to each item of the automatic setting screen that displays the item of electrode shape, product number, product name,
The data corresponding to each item on the product number setting screen that displays the material, plate thickness, and electrode shape items, and the product number, product name, material, plate thickness,
Data corresponding to each item on the welding operation screen that displays the electrode shape and welding condition items, as well as the product number, product name, material, plate thickness,
The data corresponding to each item of the manual setting screen that displays the items of electrode shape, pressing force, welding pressure, and output are stored in the memory, and the data of each item displayed on the manual setting screen can be corrected. Configure the welding conditions of the product number called on the welding operation screen and set the welding condition setting memory (4
The welding process is performed under the welding conditions stored in 1) and the welding condition setting memory (41).

As is apparent from the above configuration, in the present invention, when the automatic setting screen, the product number setting screen, the welding operation screen, or the manual setting screen is displayed on the display device 33, each of them is displayed based on the data stored in the IC memory card 35. Since the data of each item on the screen is displayed, if you select the product number corresponding to the product name to be welded from the screen and display it on the welding operation screen, the product number, product name, plate thickness, material and electrode shape and welding are displayed. Since the conditions are displayed and the welding process is performed in accordance with the displayed welding conditions, the operator only needs to check the displayed items and the welding can be performed easily.

Since it is possible to display the manual setting screen and change the setting values of the necessary items, it is also possible to change the welding conditions after performing the welding process and after inspecting the quality of the process. The welding process can be easily performed by changing the welding conditions.

[Brief description of drawings]

FIG. 1 is a block diagram of a configuration relating to a welding condition automatic setting device in the spot welding machine of the present invention, FIG. 2, FIG.
4 and 5 are examples of an automatic setting screen, a product number setting screen, a welding operation screen, and a manual setting screen displayed on the display device, and FIG. 6 is a side view of a spot welding machine according to an embodiment for carrying out the present invention. It is a figure. 1 ... Spot welder, 11 ... Upper electrode 21 ... Lower electrode, 27 ... Control device 31 ... Input device, 33 ... Display device 35 ... IC memory card 37 ... Data memory, 39 ... User memory

Claims (1)

(57) [Scope of utility model registration request] 1. A welding condition automatic setting device in a spot welding machine, comprising: an input device (31), a display device (33), an IC memory card (35), and a welding condition setting memory (41). The card (35) consists of welding method, product number,
Corresponds to the data corresponding to each item on the automatic setting screen that displays items such as product name, material, plate thickness, and electrode shape, and each item on the product number setting screen that displays item number, product name, material, plate thickness, and electrode shape Data and the data corresponding to each item on the welding operation screen that displays items such as product number, product name, material, plate thickness, electrode shape and welding conditions, and product number, product name, material, plate thickness, electrode shape, pressure, Data corresponding to each item of the manual setting screen for displaying the items of welding pressure and output are stored in the memory, and the data of each item displayed on the manual setting screen is configured to be modifiable and the welding operation is performed. The welding conditions of the product number called on the screen are stored in the welding condition setting memory (41).
And a welding condition automatic setting device for a spot welding machine, wherein the welding process is performed under the welding conditions stored in the welding condition setting memory (41).