WO2018107320A1

WO2018107320A1 - Automatic apparatus for resistance welding underwater micro-welding, and resistance welding underwater welding method

Info

Publication number: WO2018107320A1
Application number: PCT/CN2016/109452
Authority: WO
Inventors: 杨仕桐; 林健鸿; 蓝超华; 杨诚
Original assignee: 广州微点焊设备有限公司
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2018-06-21

Abstract

An automatic apparatus for resistance welding underwater micro-welding, comprising a resistance welding apparatus, an automatically-controlled drive device, a workpiece water tank (107), a welding electrode (110), water, an X-axis sliding stand (103), a Y-axis sliding stand (104), a Z-axis sliding stand (105), and a micro-optical support. The resistance welding apparatus comprises a welding power source (101) and a spot welding head (102); the spot welding head (102) is provided with an electrode clamp (109) on which a welding electrode (110) is mounted; the welding power source (101) is electrically connected to the electrode clamp (109) of the spot welding head (102) by means of an output cable. The workpiece water tank (107) and the Y-axis sliding stand (104) are mounted on a workbench (108) underneath the spot welding head (102), the X-axis sliding stand (103) is mounted on the Y-axis sliding stand (104), the spot welding head (102) is mounted on the Z-axis sliding stand (105) to form an integrated movable automatic spot welding head, and water is added in the workpiece water tank (107). The micro-optical support is mounted at front outside of the spot welding head (102). The automatically-controlled drive device is electrically connected to the X-axis sliding stand (103), the Y-axis sliding stand (104), and the Z-axis sliding stand (105) of the integrated movable automatic spot welding head (102), separately. Also disclosed is a method for resistance welding underwater welding of welded workpieces immersed by water in a workpiece water tank. By adding water in the workpiece water tank to immerse welded workpieces, automatic welding of the welded workpieces positioned in the workpiece water tank is achieved by the movement of the integrated movable automatic spot welding head, the present invention not only provides a new automatic welding apparatus for manufacturing electronic components and parts, but also develop resistance welding from air environment welding to resistance welding underwater welding, thereby solving the technical problem of heat dissipation of resistance welding.

Description

Electric resistance underwater welding micro-welding automatic equipment and electric resistance welding underwater welding method

Technical field

The invention belongs to the field of electric resistance welding, and more particularly to an electric resistance welding underwater welding device, a method and an electric welding underwater micro welding automation device.

Background technique

For the welding of the enameled wire lead-out contacts with small coil electronic components, the prior art generates high temperature or electric spark to burn the enameled wire through the tip of the parallel electrode horn, and at the same time, the welding is performed, but the heat generated by the welding head is too high due to the fast welding speed. It often burns out the solder pads of the electronic components to lead out the contacts, which brings great trouble to the automation of electronic component manufacturing.

In addition, since the welded enameled wire is very small, it is necessary to install a micro-optical amplifying device to perform welding. The installation of the prior art micro-optical amplifying device cannot meet the requirements of the micro-optical head for micro-welding.

In view of this, it is necessary to further improve the automation equipment for micro-welding in the production of electronic components.

Summary of the invention

The object of the present invention is to provide an electric resistance welding underwater welding device, an electric resistance welding underwater welding method and an electric welding underwater micro welding automatic device.

In order to achieve the above object, the present invention provides an electric resistance welding underwater micro-welding automation apparatus, which comprises:

Resistance welding equipment, automated control drive, workpiece water tank, welding electrode, water, X-axis slide, Y-axis slide, Z-axis slide and micro-optical support, among them,

The electric resistance welding equipment includes a welding power source and a spot welding machine head, and the spot welding machine head is provided with an electrode chuck, and the electrode chuck A welding electrode is mounted thereon, and the welding power source is electrically connected to the electrode holder of the spot welding head through the output cable;

The workpiece water tank and the Y-axis slide table are mounted on a table below the spot welder head, the X-axis slide table is mounted on the Y-axis slide table, and the spot weld head is mounted on the Z-axis slide table to form an integrated movable automatic point. The weld head, water is added to the workpiece tank;

The microscopic optical mount is mounted on the front outer side of the spot welder head;

The automatically controlled driving device is electrically connected to the X-axis slide table, the Y-axis slide table and the Z-axis slide table of the integrated movable automatic spot welding head.

As an improvement of the automatic welding underwater welding micro-welding device of the present invention, the Z-axis slide table comprises a pneumatic slide table driven by a small cylinder, and the sliding shaft of the small cylinder and the welding force transmission structure of the spot welding head are arranged. connection.

As an improvement of the underwater welding micro-welding automation device of the present invention, the workpiece water tank comprises a bottom of the water tank and a frame, and the workpiece water tank can satisfy the workpiece of the electronic component which is immersed in the water, and realize the parallel electrode welding head to the electronic component. Perform electric resistance welding underwater welding.

As an improvement of the automatic welding underwater welding micro-welding apparatus of the present invention, the welding electrode is a parallel electrode welding head, including a welding tip ohmic contact flat electrode welding head and a welding tip connected parallel electrode welding head.

As an improvement of the automatic welding underwater welding micro-welding apparatus of the present invention, the workpiece to be welded includes an enameled wire lead wire with small coil electronic components and a base pad embedded in the insulating substrate.

As an improvement of the underwater welding micro-welding automation device of the present invention, water or an emulsion or a saponification liquid is added to the workpiece water tank.

As an improvement of the automatic welding underwater welding micro-welding device of the present invention, the micro-optical support comprises a bracket fixing seat, a bracket column, a bracket cross rod and an XY through-hole connecting frame, and the bracket fixing seat is fastened to the spot welding machine The front outer side of the head, the bracket column is longitudinally mounted on the bracket fixing seat, and the strut column and the bracket cross bar are respectively connected with the two through holes of the XY through hole connecting frame, and the bracket cross bar is provided with a micro optical head Ring frame.

As an improvement of the underwater welding micro-welding automation device of the present invention, the XY through-hole connecting frame comprises two circular through-holes respectively perpendicular to each other in the X-axis Y-axis direction, and the two circular through-holes and the bracket column and the bracket horizontally The cylindrical outer diameter of the rod is adapted, and an adjusting screw is arranged on the wall of the X-axis Y-axis through hole.

In order to achieve the above object, the present invention also provides an electric resistance welding underwater welding method for the workpiece to be welded which is immersed in a water tank of a workpiece by the electric resistance welding underwater micro-welding automation device of the present invention, which comprises the following steps :

1) Prepare the resistance welding equipment, the workpiece water tank, the welding electrode and the water according to the welding requirements of the workpiece to be welded;

2) placing the workpiece to be welded in the workpiece water tank, and positioning the lap joint of the workpiece to be welded to the position of the welding electrode;

3) adding water to the workpiece tank to immerse the workpiece to be welded;

4) Underwater welding of the workpiece to be wet immersed by the welding electrode.

Compared with the prior art, the present invention is directed to the conventional technology of welding by electric resistance welding in an air environment, and boldly proposes an electric welding underwater welding technique, and further proposes an electric resistance welding underwater display based on the proposed electric resistance welding underwater welding technology. The micro-welding automation device, the electric resistance welding underwater welding proposed by the invention is the underwater welding of the welded workpiece immersed in the workpiece water tank by the electric resistance welding device, and the electric resistance welding micro-welding automatic welding device of the invention comprises the electric resistance Welding equipment, automated control drive, workpiece water tank, welding electrode, water, X-axis slide, Y-axis slide, Z-axis slide and micro-optical support, through the movement of an integrated movable automatic spot welding head Automated welding of the workpiece to be welded positioned in the workpiece tank. The invention not only solves the technical problem of heat dissipation of resistance welding spot welding, but also provides a new automatic welding equipment for the manufacture of electronic components.

DRAWINGS

The electric resistance underwater welding micro-welding automatic equipment and the electric resistance welding underwater welding method of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments, wherein:

1 is a schematic structural view of an underwater welding micro-welding automation device for electric resistance welding according to the present invention.

2 and 3 are microscopic optical branches in the automatic welding underwater welding micro-welding device shown in Fig. 1. Schematic diagram of the structure placed on the spot welder head.

detailed description

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. The specific embodiments described in the specification are to be construed as illustrative only and not limiting.

It should be noted that the electric resistance welding underwater welding method is a method of welding a workpiece to be welded which is immersed in a workpiece water tank by a resistance welding device. The invention proposes an automatic welding equipment for electric resistance underwater welding.

First, the electric resistance welding underwater micro-welding automation device of the present invention will be described in detail with reference to FIG. 1, which includes:

a resistance welding device, an automatically controlled driving device, a workpiece water tank 107, a welding electrode 110, water, an X-axis slide table 103, a Y-axis slide table 104, a Z-axis slide table 105, and a microscopic optical support, wherein

The electric resistance welding device comprises a welding power source 101 and a spot welding head 102. The spot welding head 102 is provided with an electrode chuck 109. The electrode chuck 109 is mounted with a welding electrode 110, and the welding power source 101 passes through the output cable and the spot welding head 102. The electrode holder 109 is electrically connected;

The workpiece water tank 107 and the Y-axis slide 104 are mounted on a table 108 below the spot welder head 102, the X-axis slide table 103 is mounted on the Y-axis slide table 104, and the spot weld head 102 is mounted on the Z-axis slide table 105. Forming an integrated movable automatic spot welding head, water is added to the workpiece tank 107;

The micro-optical bracket is mounted on the front outer side of the spot welder head 102;

The automatically controlled driving devices are electrically connected to the X-axis slide table 103, the Y-axis slide table 104, and the Z-axis slide table 105 of the integrated movable automatic spot welding head 102, respectively.

The present invention immerses the workpiece 111 by adding water to the workpiece water tank 107. The workpiece water tank 107 is located below the spot welding head 102, and the welding electrode 110 (parallel electrode) is realized by the movement of the integrated movable automatic spot welding head 102. The welding head) performs resistance welding underwater welding on the workpiece to be welded 111 positioned in the workpiece water tank 107.

Since the present invention is based on the proposed electric resistance welding underwater welding technology, further proposed resistance welding underwater Micro-welding automation equipment, therefore the present invention includes: one, electric resistance welding underwater welding device, two, electric resistance welding underwater welding method, three, automatic equipment, four, micro-optical support four parts, in order to facilitate understanding, the following through four The content of the invention is described in part.

1. Resistance welding underwater welding micro-welding automation equipment, electric resistance welding underwater welding device

Referring to FIG. 1 , the electric resistance welding underwater welding device comprises a resistance welding device, a workpiece water tank 107 , a welding electrode 110 and water, wherein the electric resistance welding device comprises a welding power source 101 and a spot welding head 102, and the welding power source 101 passes through the output cable. The electrode holder 109 is electrically connected to the electrode holder 109. The welding electrode 110 is mounted on the electrode holder 109. The spot welding head 102 is mounted with an electrode force pressing structure, and the electrode force pressing structure can drive the electrode holder. The head 109 is pressurized by the welding electrode 110, and the workpiece tank 107 is mounted on the table 108 below the spot welding head 102, and water is added to the workpiece tank 107 to submerge the workpiece 111 to be welded.

The workpiece water tank 107 needs to be described. The structure of the workpiece water tank 107 includes a water tank bottom and a frame. The workpiece water tank 107 can satisfy the water immersion welding workpiece 111 and the welding electrode 110 can perform underwater welding under the appropriate depth. That is to say, the workpiece water tank 107 is actually a water tank in which the workpiece 111 to be welded can be placed or fixed. Since the workpiece 111 to be welded often needs to be assembled and assembled into a lap joint through the workpiece holder 112, the workpiece tank 107 must satisfy the placement of the workpiece holder 112. To meet the requirements of placing the workpiece to be welded 111, the requirements for the electric resistance welding of the welded workpiece 111 can be satisfied.

It can be understood that although in the illustrated embodiment, the electric resistance welding underwater welding device of the present invention is immersed in the workpiece water tank 107 with water to be immersed in the workpiece, it may also be in the workpiece water tank 107 according to other embodiments of the present invention. The saponification liquid or the emulsion for electric discharge wire immersion is used to immerse the workpiece 111 to be subjected to electric resistance double-sided spot welding and single-sided welding, and a satisfactory welding effect can be obtained as well. That is to say, those skilled in the art can add a liquid suitable for electric resistance welding underwater welding in the workpiece water tank 107 according to actual needs, including but not limited to water or emulsion or saponification liquid.

It should be noted that the electric resistance welding includes two methods of double-sided spot welding and single-sided spot welding: placing two welding electrodes on both sides of the workpiece to be welded is called double-sided spot welding, and two welding of double-sided spot welding Electrodes are called Welding the electrodes up and down; placing the two welding electrodes on the same side of the workpiece to be welded is called single-sided spot welding, also called single-sided welding. The two welding electrodes of single-sided welding are called parallel electrodes, and the two parallel electrodes are solid. The integrated electrode is called a parallel electric welding head. The parallel electrode welding head is subdivided into the tip end of the welding head, the ohmic contact type parallel electrode welding head, the tip end of the welding head, the parallel electrode welding head and the welding head tip insulation separation according to the structure of the tip of the welding head. Parallel electrode horns. In the micro-welding automation device for electric resistance welding underwater welding of the present invention, the parallel electrode welding head of the welding electrode may include a horn-contact ohmic contact parallel electrode horn and a horn tip-connected parallel electrode horn.

Second, resistance welding underwater micro-welding automation equipment, electric resistance welding underwater welding method

The electric resistance welding underwater welding method is a method for welding a workpiece to be welded which is immersed in a water tank of a workpiece by a resistance welding device, which comprises the following steps:

1) According to the welding requirements of the workpiece to be welded 111, a suitable electric resistance welding device, a workpiece water tank 107, a welding electrode 110 and water are prepared; wherein the welding power source 101 of the electric resistance welding device is mounted on the spot welding head 102 through the output cable The electrode holder 109 is electrically connected to the electrode holder 109 on which the welding electrode 110 is mounted, and the workpiece water tank 107 is mounted on the table 108 below the spot welding head 102.

2) placing the workpiece to be welded 111 into the workpiece water tank 107, and positioning the lap joint of the workpiece 111 to be welded to the position of the welding electrode 110;

3) adding water to the workpiece water tank 107 to immerse the workpiece 111 to be welded;

4) Underwater welding of the wetted workpiece 111 immersed in water by the welding electrode 110.

There is a need for the first step of the welding method of the present invention to weld a workpiece to be wetted in a workpiece water tank by means of an electric resistance welding apparatus. "According to the welding requirements of the workpiece to be welded, a suitable electric resistance welding device, a workpiece water tank, a welding electrode and "Water" for professional explanation, the welding industry knows that the workpiece to be welded includes the metal material to be welded, the size, shape, structure and welding requirements, on the selection of welding electrodes, including double-sided spot welding, The difference of single-sided welding also includes different welding electrode sizes and different welding electrode materials. It is also different in the selection of electric resistance welding equipment. The structure of the selected electric resistance welding equipment is different. The output power of the selected welding power source is different. The output mode of the welding power source is different, and the selected one is used. The spot welding heads are also different, and the size and structure of the workpiece tanks selected for different workpieces are also different.

Third, electric resistance welding underwater micro-welding automation equipment, automation equipment

As shown in Figure 1, the micro-welding automation equipment for electric resistance welding underwater welding includes:

The present invention immerses the workpiece 111 by adding water to the workpiece tank 107. The workpiece tank 107 is located below the spot welder head 102, and the welding electrode is realized by the movement of the automatic spot welding head movable on the X-axis and/or the Y-axis. 110 (parallel electrode horn) performs resistance welding underwater welding of the workpiece to be welded 111 positioned in the workpiece tank 107.

It should be noted that the sliding table in the field of automation refers to a pneumatic sliding table driven by a servo motor or a stepping motor to drive the screw rod, and the pneumatic sliding table driven by the cylinder is controlled by the automatic PLC programming and driving device, and is set in the horizontal coordinate direction. Called the X-axis slide table, it is called the Y-axis slide table in the ordinate direction, and the Z-axis slide table is set in the vertical coordinate. The Z-axis slide table 105 according to the present invention can be applied to an electric slide table that drives the screw rod by a motor. Since the movable stroke of the spot welder head 102 is a short welding stroke that does not need to be stopped from the start point to the end point, the point is installed at the point. The Z-axis slide table 105 on the welder head 102 can also be a pneumatic slide driven by compressed air: a small cylinder with a solenoid valve is mounted on the spot welder head 102, small The movable shaft of the cylinder is connected to the welding force transmission structure of the spot welding head 102 to meet the requirements for use. The present invention refers to a spot welding head equipped with a Z-axis slide 105 as an automatic spot welding head, that is, the structure of the automatic spot welding head includes a spot welding head 102 and a spot welding head 105. Z-axis slide 105. The present invention also mounts the Y-axis slide table 104 and the workpiece water tank 107, the X-axis slide table 105 on the table 108 on the Y-axis slide table 104, and the structure of the automatic spot welder head 102 mounted on the X-axis slide table 105. It is called an integrated movable automatic spot welding head.

It should also be noted that, according to the structural features of the underwater welding, according to the working process of the workpiece water tank 107 for underwater welding, especially for automatic underwater welding, the workpiece water tank 107 is not suitable for moving, otherwise it is easy to overflow the water. . Therefore, in the micro-welding automation device of the electric resistance welding underwater welding of the present invention, the spot welding machine head 102 is specially designed, and the structure of the integrated movable automatic spot welding head 102 is proposed, and the workpiece water tank 107 is realized in the automatic water. No need to move when welding. By means of the movement of the integrated movable automatic spot welding head 102, a plurality of even dozens of welded workpieces positioned in the workpiece water tank 107 can be automatically spot-welded, and the integrated movable spot welding head 102 can be integrated. And the fixed workpiece water tank 107 is one of the main structures of the electric resistance welding underwater welding automation device of the present invention.

Fourth, electric resistance underwater welding micro-welding automation equipment, micro-optical support in the spot welding head structure

The workpiece to be welded 111 shown in FIG. 1 may include a plurality of electronic components with small coils of the same structure and arrangement, the enameled wire lead wires of the electronic components and the electronic component substrate pads are positioned at the workpiece holder of the workpiece water tank 107. At 112, the structure of the electronic component substrate pad is generally attached to the insulating substrate.

Since the lead wire of the workpiece to be welded is very small, it needs to be welded under the microscopic optical amplifying device. The prior art spot welding head and the microscopic optical support are independent of each other, or there is a microscopic optical support crossbar. Directly mounted on the front end of the spot welder head, but the micro-optical head of this structure does not have a coarse adjustment of the focus distance, nor can it focus in the left-right direction or focus in the front-rear direction, thus failing to meet the micro-optical microscopy machine. Head use requirements.

The structure of the micro-optical holder 200 on the automatic spot welding head will be described in detail below with reference to Figs. 2 and 3.

The micro-optical support 200 includes a bracket mount 201, a bracket post 202, a bracket rail 203, and an XY through-hole bracket 204. The bracket fixing base 201 is fastened to the front outer side of the spot welding head 102, the bracket upright 202 is longitudinally mounted on the bracket fixing base 201, and the strut column 202 and the bracket crossbar 203 are respectively connected with the two through holes of the XY through hole connecting bracket 204. connection. The bracket rail 203 is provided with a ring frame 206 that can be used to mount the micro-optical head 205 that is attached to a ring frame 206 on which the micro-optical head can be mounted. The two tube walls of the XY through-hole connecting frame 204 respectively have adjusting screws for tightening, and by adjusting the adjusting screw provided on the XY through-hole connecting frame 204, the coarse adjustment of the focal length of the micro-optical head 205 can be realized. Focusing in the left and right direction and in the front and back direction.

The XY through-hole connecting frame 204 is a connecting frame having two circular through-holes perpendicular to each other in the X-axis direction (lateral direction) and the Y-axis direction (longitudinal direction), and the inner diameters of the two circular through-holes perpendicular to each other are respectively associated with the bracket column 202 and the bracket The cylindrical outer diameter of the crossbar 203 is adapted. In order to facilitate the connection with the bracket column 202 and the bracket rail 203, the copper sleeve with the opening can be respectively installed on the inner walls of the two circular through holes, and the adjusting screws for the copper sleeve are arranged on the wall of the two circular through hole connecting brackets. .

The invention mounts the micro-optical support 200 on the front outer side of the automatic spot welding machine head, and has the advantages of integrally assembling the micro-optical support 200 and the automatic spot welding head two independent structures; secondly, due to the support column 202 and The bracket rails 203 are respectively connected to the two through holes of the XY through hole connection bracket 204, and the two through holes on the XY through hole connection bracket 204 are adapted to the cylinders of the bracket column 202 and the bracket rail 203, and therefore, As long as the adjustment screw of the XY through-hole connector 204 and the bracket column 202 is adjusted, the micro-optical head can perform coarse adjustment on the focal length and focus in the left-right direction through the bracket column 202; as long as the XY through-hole connector 204 is adjusted The adjusting screw of the bracket cross bar 203 can be focused in the front and rear direction by the bracket cross bar 203. Therefore, the present invention mounts the micro optical bracket 200 on the front outer side of the automatic spot welding head. Meet the requirements of micro-optical heads for spot welding work.

Finally, the working process of the underwater welding micro-welding automation equipment of the present invention:

When applying an electric resistance welding underwater micro-welding automation device to an enameled wire with small coil electronic components When the wire is soldered on the substrate pad, a plurality of even dozens of identically arranged electronic components are positioned on the workpiece holder 112 of the workpiece tank 107, and water or emulsion or saponification liquid is added to the workpiece tank 107 to immerse the electrons. The component controls the movement of the X-axis, the Y-axis and the Z-axis through the PLC automatic control device, and realizes the movement of the automatic spot welding head 102 movable on the X-axis slide table 105 and/or the Y-axis slide table 104, by being installed in the automatic The parallel electrode horn 110 of the spot welding head 102 pressurizes the workpiece 111 to be welded. When the electrode force reaches a predetermined value, the welding power source is turned on, and the parallel electrode horn 110 generates an electric spark or a high temperature in the water, such as thermocompression bonding. The insulating paint on the enameled wire is burned off, and then the electric resistance welding is performed under the action of the electrode force.

In combination with the above detailed description of the embodiments of the present invention, it can be seen that, compared with the prior art, the underwater welding micro-welding automation device of the present invention has the following advantages: one is to avoid contact between the tip of the welding head and the air at a high temperature during the welding process. It can effectively reduce the oxidation of the tip of the welding head and greatly extend the service life of the parallel electrode welding head. Secondly, the welding energy is highly concentrated, which can effectively avoid the peeling of the substrate pad and the insulating substrate. Third, the tip of the welding head can be prevented from burning the enameled wire insulation. The air pollution of the paint; the fourth is to greatly reduce the welding residue, and effectively improve the reliability and consistency of the welding. The invention not only provides a new automatic welding equipment for the manufacture of electronic components, but also the prior art of electric resistance welding in the air environment, which proposes electric resistance welding underwater welding, and solves the technical problem of heat dissipation of electric resistance welding, Promote the role of scientific and technological progress in the resistance welding industry.

The above embodiments may be modified and modified as appropriate by those skilled in the art in light of the above description and disclosure. Therefore, the invention is not limited to the specific embodiments disclosed and described herein, and the modifications and variations of the invention are intended to fall within the scope of the appended claims. In addition, although specific terms are used in the specification, these terms are merely for convenience of description and do not limit the invention.

Claims

An electric resistance welding underwater micro-welding automation device, comprising:

Resistance welding equipment, automated control drive, workpiece water tank, welding electrode, water, X-axis slide, Y-axis slide, Z-axis slide and micro-optical support, among them,

The electric resistance welding device comprises a welding power source and a spot welding machine head, the spot welding machine head is provided with an electrode chuck, the welding electrode is mounted on the electrode chuck, and the welding power source is electrically connected to the electrode holder of the spot welding machine head through the output cable;

The workpiece water tank and the Y-axis slide table are mounted on a table below the spot welder head, the X-axis slide table is mounted on the Y-axis slide table, and the spot weld head is mounted on the Z-axis slide table to form an integrated movable automatic point. The weld head, water is added to the workpiece tank;

The microscopic optical mount is mounted on the front outer side of the spot welder head;

The automatically controlled driving device is electrically connected to the X-axis slide table, the Y-axis slide table and the Z-axis slide table of the integrated movable automatic spot welding head.
The electric resistance welding underwater micro-welding automation device according to claim 1, wherein the Z-axis slide table comprises a pneumatic slide table driven by a small cylinder, and the sliding shaft of the small cylinder is welded with the spot welding head. The force conducting structures are connected.
The electric resistance welding underwater micro-welding automation device according to claim 1, wherein the workpiece water tank comprises a bottom of the water tank and a frame, and the workpiece water tank can satisfy the workpiece of the electronic component that is immersed in the water, and realize the parallel electrode welding head. Perform electric resistance welding underwater welding of electronic components.
The electric resistance welding underwater micro-welding automation device according to claim 1, wherein the welding electrode is a parallel electrode welding head, including a welding tip ohmic contact flat electrode welding head and a welding tip connected parallel electrode welding. head.
The electric resistance welding underwater microsurgery automation apparatus according to claim 1, wherein the workpiece to be welded comprises an enameled wire lead wire with a small coil electronic component and a base pad embedded in the insulating substrate.
The electric resistance underwater welding micro-welding automation device according to claim 1, wherein water or an emulsion or a saponification liquid is added to the workpiece water tank.
The electric resistance underwater welding micro-welding automation device according to claim 1, wherein the micro-optical support comprises a bracket fixing seat, a bracket column, a bracket cross rod and an XY through-hole connecting frame, and the bracket fixing seat is fastened. On the front outer side of the spot welding machine head, the bracket column is longitudinally mounted on the bracket fixing seat, and the strut column and the bracket cross bar are respectively connected with the two through holes of the XY through hole connecting frame, and the bracket cross bar is provided with the mountable microscope The ring frame of the optical handpiece.
The underwater welding microscopy automation device according to claim 7, wherein the XY through hole connecting frame comprises two circular through holes respectively perpendicular to each other in the X-axis Y-axis direction, and two circular through-holes and a bracket The cylindrical outer diameter of the column and the bracket crossbar are matched, and the adjusting screw is arranged on the wall of the X-axis Y-axis through hole.
An electric resistance welding underwater welding method for the workpiece to be welded which is immersed in a water tank of a workpiece by the electric resistance underwater welding micro-welding automatic device according to any one of claims 1 to 8, characterized in that it comprises The following steps:

1) Prepare the resistance welding equipment, the workpiece water tank, the welding electrode and the water according to the welding requirements of the workpiece to be welded;

2) placing the workpiece to be welded in the workpiece water tank, and positioning the lap joint of the workpiece to be welded to the position of the welding electrode;

3) adding water to the workpiece tank to immerse the workpiece to be welded;

4) Underwater welding of the workpiece to be wet immersed by the welding electrode.