CN-122007584-A - Spot welding parameter dial switching device, system and method

CN122007584ACN 122007584 ACN122007584 ACN 122007584ACN-122007584-A

Abstract

The application relates to the technical field of whole vehicle manufacturing, in particular to a spot welding parameter dial switching device, a spot welding parameter dial switching system and a spot welding parameter dial switching method, wherein the spot welding parameter dial switching device comprises a first handle and a second handle, and the first handle and the second handle are mutually switched and used for controlling welding operation; through setting up first handle switch, first dial ware and first relay in first handle, be connected first dial ware one end and first handle switch, the other end is established ties with first relay one end, set up second handle switch, second dial ware and second relay in the second handle, connect second handle switch, second dial ware and second relay through the same connected mode with each component in the first handle, connect the other end of two in parallel as the output, guaranteed that the welding electric control signal that sends of dial ware between two handles does not influence each other. Therefore, the problem that the risks of welding parameter output deviation caused by the mutual influence of the control signals of the dialers with two handles in the related technology are solved.

Inventors

CHEN YIGUO
Yang Jiaguang
LI RONGYI
MA QINGHUA
WANG CHUNLONG
WANG WENXIAN
Qu Kezhong
CHEN HAO
SUN FEI
CHEN GANG

Assignees

奇瑞汽车股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260112

Claims (10)

1. The spot welding parameter dial switching device is characterized by comprising: a first handle and a second handle, the first handle and the second handle being switched to each other for controlling a welding operation; The first handle comprises a first handle switch, a first dial and a first relay, one end of the first handle switch is connected with the first dial, the other end of the first handle switch is connected with the first relay, and the other end of the first dial is connected with one end of the first relay in series; The second handle comprises a second handle switch, a second dial and a second relay, one end of the second handle switch is connected with the second dial, the other end of the second handle switch is connected with the second relay, and the other end of the second dial is connected with one end of the second relay in series; the other end of the first relay is connected with the other end of the second relay in parallel to form an output end.
2. The spot welding parameter dial switch device of claim 1, wherein the first and second dials are for inputting a welding control signal.
3. The spot welding parameter dial switch device according to claim 1, wherein the first handle and the second handle are connected in parallel, and the welding electric control signals output by the first dial and the second dial in the first handle and the second handle do not affect each other.
4. The spot welding parameter dial switch device according to claim 1, wherein the first relay and the second relay are normally open relays.
5. The spot welding parameter dial switch device according to claim 4, wherein said first relay and said second relay are turned on or off according to a preset level control circuit.
6. The spot welding parameter dialing switching device according to claim 1 or 5, wherein the first relay keeps the first dialing circuit off when the first handle switch is on, and turns on the first dialing circuit when the first handle switch is off, and the second relay keeps the second dialing circuit off when the first handle switch is on, and turns on the second dialing circuit when the second handle switch is off.
7. A spot welding parameter dial switch system, comprising: At least one spot welding parameter dial switch device according to any one of claims 1-6; At least one welding tongs, each welding tongs corresponds to one spot welding parameter dialing switching device; and one end of the welding machine main board is connected with at least one welding tongs, and the other end of the welding machine main board is connected with the output end of at least one spot welding parameter dial switching device corresponding to the welding tongs.
8. The spot welding parameter dial switching system according to claim 7, wherein the welding machine main board receives a welding electric control signal output by the spot welding parameter dial switching device, analyzes a target welding parameter according to the welding electric control signal, and controls a corresponding welding tongs to perform welding operation according to the target welding parameter.
9. The spot welding parameter dial switch system of claim 8, wherein the welder motherboard is connected to a plurality of the spot welding parameter dial switch devices corresponding to the electrode holders, comprising: and connecting the output ends of the spot welding parameter dial-up switching devices in parallel and then connecting the output ends to the welding machine main board.
10. A spot welding parameter dial switching method, characterized in that the method is applied to the spot welding parameter dial switching device according to any one of claims 1-5, comprising the steps of: Selecting a first handle as a control handle, switching on a first relay of a circuit where the first dial is positioned through a first handle switch of the first handle, inputting a first welding electric control signal through the first dial, outputting the first welding electric control signal through the first relay, and controlling welding operation; after the welding operation is finished, changing the state of the first handle switch, and automatically disconnecting the first relay; The switching control handle is a second handle, a second relay of a circuit where the second dial is located is conducted through a second handle switch of the second handle, a second welding electric control signal is input through the second dial, and the second welding electric control signal is output through the second relay to control welding operation.

Description

Spot welding parameter dial switching device, system and method Technical Field The application relates to the technical field of whole vehicle manufacturing, in particular to a spot welding parameter dial switching device, a spot welding parameter dial switching system and a spot welding parameter dial switching method. Background The spot welding process is widely used in the production process of welding automobile bodies. In order to meet the requirements of different plate combinations on welding strength, corresponding spot welding process parameters are reasonably selected according to parameters such as thickness, materials, layer number and the like of the plates. In production, a spot welding tongs equipped with a double handle is often adopted to improve the operation flexibility and the operation efficiency. At present, a double-handle welding tongs adopts a dial to switch and control welding parameters, and the dial is respectively arranged on two handles and is directly connected into a main board of the welding machine in a parallel mode. However, the parallel structure has the obvious defects that when an operator uses one handle to perform welding operation, if the dialer of the other handle is not manually adjusted to the 0 position (namely, the invalid or closed state), the output signals of the two dialers simultaneously act on the input end of the main board, so that the signals are overlapped or collide, the actually output welding parameters deviate from the set values, the quality of welding spots is influenced, the welding defects such as cold welding, burning-through and the like are possibly caused, and the safety of the vehicle body structure is even endangered in serious cases. Disclosure of Invention The application provides a device, a system and a method for switching a spot welding parameter dial, which are used for solving the problem that the risks of welding parameter output deviation are caused by the mutual influence of dial control signals of two handles in the related technology. The embodiment of the first aspect of the application provides a spot welding parameter dial switching device, which comprises a first handle and a second handle, wherein the first handle and the second handle are mutually switched and used for controlling welding operation, the first handle comprises a first handle switch, a first dial and a first relay, one end of the first handle switch is connected with the first dial, the other end of the first handle switch is connected with the first relay, the other end of the first dial is connected with one end of the first relay in series, the second handle comprises a second handle switch, a second dial and a second relay, one end of the second handle switch is connected with the second dial, the other end of the second handle switch is connected with the second relay, the other end of the second dial is connected with one end of the second relay in series, and the other end of the first relay is connected with the other end of the second relay in parallel to form an output end. Optionally, the first and second dials are used for inputting welding electric control signals. Optionally, the first handle and the second handle are connected in parallel, and the welding electric control signals output by the first dial and the second dial in the first handle and the second handle are not mutually influenced. Optionally, the first relay and the second relay are normally open relays. Alternatively, the first relay and the second relay may control on or off of the circuit according to a preset level. Optionally, the first relay keeps the first dialer circuit off when the first handle switch is on, and turns on the first dialer circuit when the first handle switch is off, and the second relay keeps the second dialer circuit off when the first handle switch is on, and turns on the second dialer circuit when the second handle switch is off. An embodiment of the second aspect of the application provides a spot welding parameter dialing switching system, which comprises at least one spot welding parameter dialing switching device of the first aspect, at least one welding tongs, a welding machine main board, and a welding machine main board, wherein each welding tongs corresponds to one spot welding parameter dialing switching device, one end of the welding machine main board is connected with at least one welding tongs, and the other end of the welding machine main board is connected with the output end of the at least one spot welding parameter dialing switching device corresponding to the welding tongs. Optionally, the welding machine main board receives a welding electric control signal output by the spot welding parameter dial switching device, analyzes a target welding parameter according to the welding electric control signal, and controls a corresponding welding tongs to carry out welding operation according to the target welding parameter. Optionally,