JP2630998B2 - Cordless remote control resistance welding equipment - Google Patents

Description

The present invention relates to a cordless remote-controlled resistance welding apparatus,
More specifically, the present invention relates to a resistance welding device that enables a timer contactor to be remotely controlled by a remote controller provided in the welding device.

[Related Art] Taking a welding robot as an example, a resistance welding machine includes a welding device for directly welding a workpiece, a robot controller for controlling the welding robot equipped with the welding device, and a welding sequence for the welding device. Control panel to control and energizing time,
It is configured by connecting a device such as a timer contactor that sets and controls control data such as a welding current value.

Among these devices, a timer contactor is a device that is operated most frequently, for example, an operator changes the setting of a welding control element according to a workpiece to be welded. It is necessary to change the welding setting data according to the type of work.

FIG. 4 is a block diagram showing a configuration of a timer contactor and a welding device of such a resistance welding machine. In the figure, reference numeral 100 denotes a timer contactor, a data setting unit 100a for setting data of a welding control element, a memory unit 100b for storing the set data, and welding for controlling the welding device 101 based on the setting data. It consists of a control unit 100c and a data display unit 100d for displaying the set data.In the resistance welding machine having such a configuration, in a multiple spot type or a portable spot type, etc., the timer contactor is a balcony deck or Often installed on a stand (not shown) such as a catwalk,
The welding control is performed by being connected to the welding apparatus 101 via the wiring 100e.

By the way, in consideration of the situation of the welding work, the work to be welded (not shown) is sequentially sent by a conveyor (not shown) or the like, and therefore, a worker who monitors the welding state and the type of the work is on the welding device 101 side. It is necessary to change the setting of the timer contactor 100 when there is a change in the work, and also requires an operator on the stand on which the timer contactor 100 is installed, It is necessary to proceed with welding while communicating the setting values of the control elements according to the work between the two workers.

If one worker performs such a welding operation, the data must be set back and forth between the welding device 101 and the timer contactor 100 every time the work is changed.

By the way, in such a welding environment, when the type of work is constant, the decrease in work efficiency is not a serious problem, but when a large number of types of work are welded in large quantities, the work efficiency is greatly reduced. , And welding failures due to data setting errors are likely to occur.

[Problems to be Solved by the Invention] The present invention proposed to solve the above problems is to transmit and receive data by radio waves or ultrasonic waves between a remote controller provided on the welding device side and a timer contactor. It is an object of the present invention to provide a device capable of setting and confirming data of a welding control element from a welding device side.

Means for Solving the Problems A first invention proposed to achieve the above object is a remote controller provided on a welding device side, and a welding control element such as a welding current and a conduction time of the welding device. Between a timer contactor that controls the set value according to the workpiece, and a cordless remote control type resistance welding device that performs data transmission using electromagnetic waves as a medium, wherein the timer contactor is A data setting unit for manually inputting data of the welding control element, a memory unit for storing the control data set by the data setting unit, and reading out the control data stored in the memory unit to supply the welding current to the welding device. A welding control unit for performing control such as supply of data, a data transmission / reception unit having an antenna, and a data display for displaying data stored in the memory A data setting unit for manually inputting data of the welding control element, a data display unit for displaying data input by the data setting unit, and a data transmission / reception unit having an antenna. A weak signal is transmitted and received between the data transmission / reception unit of the timer contactor and the data transmission / reception unit of the remote controller, whereby the data is input by the data setting unit of the remote controller. The data of the various control elements are transferred to and stored in the memory unit of the timer contactor, and the data of the various control elements stored in the memory unit can be displayed on the display unit of the remote controller. .

Further, the second invention proposed at the same time has a configuration in which data transmission between the timer contactor and the remote controller is performed using ultrasonic waves as a medium.

[Operation] In the first aspect of the present invention, since the setting of the control element by the timer contactor is performed by remote control using electromagnetic waves from the remote controller, the setting of the control element can be changed from the welding device according to the workpiece. In addition, the data of the currently set control element can be confirmed by operating the remote controller.

Further, in the second aspect of the present invention, the setting of the control element of the timer contactor is remotely operated by the ultrasonic wave, and the same effect as that of the first aspect is exerted.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a main part of the first present invention. In the figure, 1 is a timer contactor, a data setting unit 1a for manually setting welding control elements,
A memory unit 1b for storing data set by the data setting unit 1a, a welding control unit 1c for controlling the welding device 2 according to the setting data, and a data display unit for displaying the stored data
1d, a data transmission / reception unit 1e for transmitting and receiving data to and from the remote controller 3, and an antenna 1f. The welding control unit 1c is connected to the welding device 2 via the conductive wire 1g.
It is connected to the.

Further, the remote controller 3 includes an antenna 3a, and is usually detachably attached to the welding device 2.

In the cordless remote control type resistance welding apparatus having such a configuration, when the data of the control element according to the work is set by the data setting unit 1a of the timer contactor 1, the setting data is stored in the memory unit 1b and the data is displayed. The welding device 2 is controlled by the welding control unit 1c according to the data displayed on the unit 1d and set.

As described above, the operation of data setting by the timer contactor 1 is the same as the conventional one, but in the present invention, the data setting can be further performed by the operation of the remote controller 3 provided on the welding device 2 side. I have.

That is, data set by the remote controller 3 is radiated from the antenna 3a by radio waves, and the radio waves are transmitted to the antenna 3a.
The data is received by 1f, demodulated by the data transmission / reception unit 1e, and the setting data is stored in the memory unit 1b. Further, by operating the remote controller 3, the data currently stored in the memory unit 1b of the timer contactor 1 is converted into a radio signal by the data transmission / reception unit 1e, and radiated from the antenna 1f.
The signal is received by the antenna 3a of the remote controller 3 and is displayed on a display (not shown) of the remote controller 3.

FIG. 2 is a diagram illustrating an operation panel of the remote controller 3.

In the figure, 3a is an antenna, 3b is a data display for setting and displaying data of a control element, and has 7 segments.
LED or LCD display. Reference numerals 3c and 3d denote an up switch and a down switch for increasing and decreasing the display data of the data display 3b, and 3e a timer contactor selection switch for transmitting / receiving data. An arbitrary channel is set by setting the selection switch 3e. Timer contactor can be selected. A power switch 3f controls ON / OFF of the power of the data transmission / reception unit of the timer contactor selected by the selection switch. The readout switch 3g operates in combination with the initial pressurization setting switch 3i, the energization time setting switch 3j, and the welding current setting switch 3k to display various data currently stored in the timer contactor 1 on the display 3b. The write switch 3h has a function of writing the data currently displayed on the display into the memory section 1c of the timer contactor 1, similarly to the read switch 3g.

As an example, a setting procedure when the initial pressurization time is 10 cycles, the energization time is 5 cycles, and the welding current is 10.0 KA will be described.

First, the identification number (for example, 25, etc.) of the timer contactor 1 for which data is to be set is set with the selection switch 3e and the channel is adjusted. When the power switch 3f is operated, the data transmission / reception section of the timer contactor 1 having the identification number 25 is operated. 1e
Is supplied with power. The power switch 3f turns ON when the timer contactor 1 selected by the selection switch 3e is operated once, and turns OFF when operated again. Also, when one timer contactor 1 is ON,
Even if another timer contactor is selected with the selection switch 3e and the power switch 3f is operated without turning off the timer contactor 1, the power is not turned on. Therefore, when the timer contactor 1 to be used is changed, the currently used timer contactor 1 is turned off and then turned on. The timer contactor 1 that is currently energized can be easily confirmed from the welding device 2 side by an energization indicator (not shown) provided in the timer contactor 1.

Next, to set 10 cycles of the initial pressurization value, set the display value of the data display 3b to 10.0 with the up switch 3c and the down switch 3d, and then operate the initial pressurization switch 3i and the write switch 3h in this order. The data of the initial pressurization time of 10 cycles is transmitted to the
Is stored in

The same applies to the setting of the energizing time and the welding current.However, when setting the welding current value, if the unit is KA and 10.0 KA, the up switch is set so that the display on the display 3b becomes 10.0.
After operating the 3c and the down switch 3d, the welding current switch 3k and the write switch 3h are operated.

When the data setting is completed by the above procedure, the data stored in the timer contactor is confirmed.

That is, the initial pressure switch 3i, the energization time switch 3j,
When the readout switch is operated after the operation of any of the welding current switches 3k, the data stored in the timer contactor by the above operation is displayed on the display 3b of the remote controller 3.
Is displayed, it is possible to easily confirm whether writing by the writing operation has been performed normally.

FIG. 3 is a block diagram showing the configuration of the second invention, which differs from the first invention in that it uses radio waves as a transmission medium, but uses ultrasonic waves.

In other words, the configuration of the timer contactor 1 is the same as that of the first invention, except that the data transmission / reception unit 1h transmits and receives ultrasonic waves, and furthermore, the remote control unit 1i transmits / receives ultrasonic waves to / from the remote controller. Since the data is transmitted to and from the transmitter / receiver 4a of FIG. 4 and other operations are the same as those of the first invention, the description is omitted.

[Effects of the Invention] In the first aspect of the present invention, the data setting of the timer contactor and the confirmation of the setting data can be remotely performed by using a radio wave by the remote controller, and the timer contactor is changed every time the work is changed. This eliminates the need to reciprocate between the welding machine and the welding device or to require two workers, thereby greatly improving work efficiency.

Further, the second invention uses ultrasonic waves instead of the radio waves of the first invention, and the same effects as those of the first invention can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of the first embodiment of the present invention, FIG. 2 is an explanatory diagram of an operation panel of a remote controller, FIG. 3 is a block diagram showing the configuration of the second embodiment of the present invention, and FIG. FIG. 2 is a block diagram showing a configuration of a timer contactor of FIG. [Explanation of Signs] 1 Timer contactor 1a Data setting unit 1b Memory unit 1c Welding control unit 1d Data display unit 1e Data transmission / reception unit 1i, 4a Ultrasonic transmission / Receiver 2 …… Welding equipment 3,4 …… Remote controller

Claims (2)

(57) [Claims] An electromagnetic wave is transmitted between a remote controller provided on a welding device side and a timer contactor for controlling welding control elements such as welding current and conduction time of the welding device to set values according to a workpiece. A cordless remote control type resistance welding apparatus configured to perform data transmission in the above manner, wherein the timer contactor has a data setting section for manually inputting data of a welding control element, and a data setting section configured by the data setting section. A memory unit for storing control data, a welding control unit for reading out the control data stored in the memory unit and supplying a welding current to the welding device to perform control, and a data transmission / reception unit having an antenna And a data display unit for displaying data stored in the memory, and wherein the remote controller manually outputs data of the welding control element. And a data display unit for displaying data input by the data setting unit, and a data transmission / reception unit having an antenna. The data transmission / reception unit of the timer contactor By transmitting and receiving weak radio waves between the data transmission / reception units of the remote controller, the data of various control elements input by the data setting unit of the remote controller is transferred to the memory unit of the timer contactor. A cordless remote control type resistance welding apparatus that stores data of various control elements stored in the memory unit on a display unit of the remote controller. 2. An ultrasonic wave is transmitted between a remote controller provided on a welding device side and a timer contactor for controlling welding control elements, such as welding current and conduction time of the welding device, to set values according to a workpiece. A cordless remote-controlled resistance welding apparatus configured to transmit data as a medium, wherein the timer contactor includes a data setting unit for manually inputting data of a welding control element, and a data setting unit configured to set the data. A welding unit for reading the control data stored in the memory unit and supplying a welding current to the welding device for control, and an ultrasonic transmitter / receiver. And a data display unit for displaying data stored in the memory, and wherein the remote controller is provided with data of a welding control element. The timer contactor includes a data setting unit for manually inputting, a data display unit for displaying data input by the data setting unit, and a data transmission / reception unit having an ultrasonic transmitter / receiver. By transmitting and receiving an ultrasonic wave between the data transmission / reception unit of the remote controller and the data transmission / reception unit of the remote controller, the data of the various control elements input by the data setting unit of the remote controller is transmitted to the timer contactor. A cordless remote control type resistance welding apparatus wherein the data of various control elements stored in the memory unit can be displayed on the display unit of the remote controller.