CN2401307Y - welding machine wireless remote control - Google Patents

Abstract

The utility model comprises a transmitting part and a receiving part, wherein the decoding signal output end of the receiving module is correspondingly provided with a miniature relay K₁－K₄The motor part of the actuator electromotive potentiometer of the terminal control part is connected with a neutral line END at one END and a miniature relay K at the other END₁、K₂Is connected with a normally open contact, K₁、K₂The contact of the relay is connected with a group of symmetrical power supplies and a small relay K corresponding to the other two decoding signal output ends₃Normally open contact, K₄The normally closed contacts are respectively connected with an intermediate relay K₅And the two ends of the coil control the on-off of the working power supply of the electric welding machine.

Description

welding machine wireless remote control

The utility model belongs to the technical field of electric welding machines and radio remote controls, and mainly provides a wireless remote control for electric welding machines.

In the welding operation of the electric welding machine, there are many factors that affect the welding quality, such as the quality of the electrode, the cleanliness of the weld bead, wind and temperature, etc. It has been proved that in addition to the above avoidable factors, the influence of the welding current is more critical. Due to the different positions, thicknesses, and gaps of the weldments, to ensure good welding quality, there must be a suitable welding current. If the current is too large, it may cause welding bumps, and if the current is too small, it will cause defects such as slag inclusions. In construction, it is actually not allowed to stop and adjust the current if a welding joint is welded many times. However, current welding machines are limited due to various reasons, such as the influence of the characteristics of the welding machine itself, such as strong magnetic field, strong sparks, high current, etc., which cannot solve the problem of remote control current adjustment, which brings great inconvenience to the operation of the welding machine and directly Affect welding quality and work efficiency.

The purpose of this utility model is to propose a wireless remote control for electric welding machine, which can adjust the current at any time during the welding process and turn off and on the power supply of the welding machine immediately, and at the same time make it have the characteristics of reasonable structure design and reliable use.

The technical scheme adopted by the utility model to accomplish its inventive task is: it is divided into two parts: transmitting and receiving; Components; the receiving part includes a receiving module, a working power supply circuit and a terminal control part; the decoding signal output end of the receiving module is correspondingly equipped with small relays K1-K4, and the executive element of the terminal control part adopts a motorized potentiometer M, and one end of the motor part is connected to the center The other end is connected to the normally open contacts of the small relays K1 and K2, and the contacts of the small relays K1 and K2 are connected to a group of symmetrical power supplies; the other end of the small relay K3 corresponding to the output terminals of the decoding signal The open contact and the normally closed contact of K4 are respectively connected to the two ends of the coil of the intermediate relay K5, thereby respectively controlling the opening and closing of the working power supply of the electric welding machine.

The electric potentiometer is an electric and manual adjustment structure.

The potentiometer of the electric potentiometer has the same resistance adjustment range as the potentiometer of the electric welding machine to control the current.

The working principle of the utility model wireless welding machine remote control:

After the transmitting and receiving circuit is powered on, when the S ₁ key of the transmitting module (using 9638F) is pressed, the decoding signal output terminal A of the receiving module 9638D outputs a high level, which is amplified by the triode and pushes the relay K1 to pull in, and the M motor The coil passes a positive current, and the motor rotates clockwise, driving the potentiometer to rotate synchronously (there is a gear reduction mechanism inside), its resistance value gradually decreases, and the output current of the welding machine increases from small to small. After releasing the S ₁ key, the 9638F stops transmitting signal, K1 is released, M stops, and the output current of the welding machine is locked at this position. In the same way, after pressing the launch key S ₂ , K2 pulls in, M gets the reverse current, and the output current of the welding machine changes from large to small. After releasing the S ₂ key, the current locks. After pressing the launch key _S3 , K3 pulls in, the electric welding machine is powered on, and after pressing the launch key _S4 , K5 is disconnected, the power of the welder is cut off, and the welding machine stops working.

Design features of the utility model:

1. The transmitting and receiving part adopts password radio technology, which has good confidentiality and one-to-one control without affecting others.

2. The output current control part of the welding machine adopts an electric potentiometer, which can be used manually or electrically.

3. A relay is used to isolate the remote control part and the control circuit of the welding machine, which ensures the stable performance of the welding machine.

4. The power supply mode of the electric potentiometer adopts a double symmetrical power supply, and two small relays replace the traditional triode switching mode, which improves the reliability.

Example:

Figure 1 is a schematic diagram of the peripheral components of the transmitter module 9638F.

Accompanying drawing 2 is receiving module 9638D appearance pin and test circuit principle diagram.

Accompanying drawing 3 is the schematic diagram of the working power supply of the receiving part.

Accompanying drawing 4 is the electrical schematic diagram of receiving driving circuit.

Accompanying drawing 5 is the electrical schematic diagram of the terminal control circuit of the receiving part.

Its structure is further described in conjunction with the embodiment that accompanying drawing provides:

As shown in the attached figure, the device adopts imported password radio remote control components, including a transmitting module and a receiving module. As shown in Figure 1, the transmitting module is 9638F, which contains encoding, amplification, modulation and other circuits inside, and its peripheral circuits Very simple, only four micro switches S1-S4 and 12V power input and transmitting antenna.

A, B, C, D and I of the receiving module 9638D in FIG. 2 . Both are decoding signal output terminals, when the encoding and decoding are consistent, output 4V high level, the current is about 2mA, corresponding to the S1-S4 four-position control keys on the transmitter module. Its transceiver frequency point is 418MHz±50KHz, imported quartz resonant frequency stabilization, the stability is better than 10 ^-5 , the ambient temperature is -10-40℃, the internal frequency drift is ±10KHz, the transmission bandwidth at -3db is 100KHz, the radio frequency power is 10MV, and the receiving sensitivity is 0.5mv /m, the capture bandwidth is 400KHz, the internal passwords of the components have been paired and programmed at the factory, and the number of non-repeating codes is as high as 320,000 groups. features. In the test circuit, five light-emitting diodes are respectively connected to the receiving and decoding output terminals, and connected, and a certain key of the transmitter is pressed, and the corresponding data continues to emit light in the form of a latch, I. The terminal is illuminated in a non-latching form, and the other unpressed terminals are not illuminated. When another key is pressed, the corresponding output is transferred to another channel, and the indicator of the original output terminal goes out, that is, the outputs of each channel have an interlocking relationship.

As shown in Figure 3, the 220V power supply outputs two parts of voltage through the transformer. One of them is rectified and filtered to provide 12V voltage to the receiving module 9638D and the relay coil. Component motorized potentiometer ±5V voltage.

As shown in Figure 4, in the drive circuit of the receiving part, the decoding signal output terminals of the receiving module are equipped with relays, namely K1-K4, and the driving circuit of the small relays K1-K4 is composed of R2-R6 and triodes VT1-VT5. R1, filter C1, Zener diode D1 provide 9V stable voltage to 9638D and transistors VT1-VT5.

As shown in Figure 5, M in the terminal control circuit of the receiving part is a motor potentiometer, one end of the motor part is connected to the neutral line GND, and the other end is connected to the normally open contacts of the relays K1 and K2, and the small relays K1 and K2 The contacts of the electric potentiometer are connected to a group of symmetrical power sources. The potentiometer of the electric potentiometer adopts electric and manual adjustment methods, and its resistance value adjustment range is the same as that of the potentiometer for controlling the current of the welding machine. The normally open contacts of the small relay K3 and the normally closed contacts of K4 respectively connected to the two ends of the coil of the intermediate relay K5 which are set corresponding to the other two decoding signal output terminals, respectively control the opening and closing of the working power supply of the electric welding machine.

Claims (3)

1, electric welding machine Digiplex, it is divided into and transmits and receives two parts, and radiating portion comprises that inside contains the transmitter module of circuit such as coding, amplification, modulation and microswitch S is arranged ₁-S ₄, power supply and transmitting antenna peripheral circuit; Receiving unit includes receiver module, working power circuit and terminal control section; It is characterized in that the corresponding miniature relay K that is provided with of decoded signal output with receiver module ₁-K ₄, the executive component of terminal control section adopts electro kinetic potential device M, its motor portion one termination neutral conductor END, the other end and miniature relay K ₂, K ₂Normally opened contact join miniature relay K ₁, K ₂The contact connect one group for the electro kinetic potential device provides the symmetrical power supply of working power, with the miniature relay K of the corresponding setting of two other decoded signal output ₃Normally opened contact, K ₄Normally-closed contact connect the two ends of auxiliary reclay K5 respectively.

2,, it is characterized in that electric appliances M is a version electronic, manual adjustments according to the described electric welding machine Digiplex of claim 1.

3,, it is characterized in that the resistance adjustable range of electro kinetic potential device M is identical with the potentiometer of electric welding machine control electric current according to the described electric welding machine Digiplex of claim 1.

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