CN219443811U - Single-sided spot welding equipment and welding negative electrode connecting device - Google Patents
Single-sided spot welding equipment and welding negative electrode connecting device Download PDFInfo
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- CN219443811U CN219443811U CN202223165767.9U CN202223165767U CN219443811U CN 219443811 U CN219443811 U CN 219443811U CN 202223165767 U CN202223165767 U CN 202223165767U CN 219443811 U CN219443811 U CN 219443811U
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Abstract
The application relates to a single-sided spot welding device and a welding negative electrode connecting device, wherein the single-sided spot welding device comprises a positive electrode welding gun and the welding negative electrode connecting device, the welding negative electrode connecting device comprises an action part, an abutting piece, a slideway and a plurality of copper pad plates which are separated from each other, and the abutting piece is connected with the negative electrode of the single-sided spot welding device; the abutting piece is connected with the action part, and the action part can slide along the slideway and acts on the abutting piece to be matched with and separated from the copper pad plate. For single-sided spot welding with more welding spots, the problem that the welding quality is greatly influenced due to shunt can be avoided while the production efficiency is ensured.
Description
Technical Field
The application relates to the technical field of welding equipment, in particular to single-sided spot welding equipment and a welding negative electrode connecting device.
Background
Single-sided spot welding means that a welding spot is generated on one side of a workpiece, and the other side of the workpiece is a flat surface, so that the product has great advantages in terms of attractive appearance. In single-sided spot welding, it is generally necessary to place a copper plate as a welding negative electrode on the back surface of a welding base material to provide a path of low resistance for welding current.
When the quantity of welding spots is one, only one copper plate can be used as a welding negative electrode, at the moment, welding current completely flows through a welding area without a shunt phenomenon, but when the quantity of the welding spots is two or more, if a copper plate which is communicated with the whole piece is used as the welding negative electrode, current can be shunted from the surface of a workpiece during welding, if the quantity of the welding spots on the single copper plate exceeds a certain quantity, the shunting is overlarge, a false welding condition can be caused, if each welding spot uses the copper plate which is not communicated with each other as the welding negative electrode, the copper plate connected with the negative electrode of the welding machine needs to be manually switched during welding, the operation is complex, and the production efficiency is influenced.
Therefore, for single-sided spot welding with a large number of welding spots, how to avoid the problem of greatly influencing the welding quality due to shunt while ensuring the production efficiency is a technical problem to be solved by the technicians in the field.
Disclosure of Invention
The purpose of this application is to provide a single-sided spot welding equipment and welding negative pole connecting device, to the more single-sided spot welding of solder joint quantity, can avoid taking place because the great problem that influences welding quality of reposition of redundant personnel in the assurance production efficiency.
In order to solve the technical problems, the application provides a welding negative electrode connecting device, which comprises an action part, an abutting piece, a slideway and a plurality of copper pad plates which are separated from each other, wherein the abutting piece is connected with a negative electrode of a single-sided spot welding device; the abutting piece is connected with the action part, and the action part can slide along the slideway and acts on the abutting piece to be matched with and separated from the copper pad plate.
Through setting up a plurality of copper backing plates that are independent of each other, when carrying out single-sided spot welding operation to the welding parent metal, can lay each copper backing plate at the back of welding parent metal with regard to the negative pole, every copper backing plate all corresponds with the partial solder joint of welding parent metal respectively, when the butt piece joined in marriage with the copper backing plate, communicates between butt piece and the copper backing plate, and the copper backing plate forms the welding negative pole, can carry out welding operation to each solder joint that this copper backing plate corresponds through anodal welder. That is, the welding spots of the welding base material are divided into a plurality of groups to be welded, each group of welding spots corresponds to one copper backing plate, in the welding process, the welding spots are performed in a group, specifically, the number of the welding spots corresponding to each copper backing plate is not required, if the number of the welding spots in the group of welding spots is not more than 10, the size and the number of the copper backing plates can be set according to the number of the welding spots of the base material, so that the number of the welding spots corresponding to a single copper backing plate can be reduced, and the condition of cold welding caused by overlarge shunt is avoided.
The action part can slide along the slideway and act on the abutting part to enable the abutting part to be matched with the copper pad plate, at the moment, the copper pad plate is connected with the cathode, the welding points corresponding to the copper pad plate are subjected to spot welding operation through the anode welding gun, after welding is finished, the action part drives the abutting part to slide to the position of the next copper pad plate along the slideway, the next copper pad plate is communicated with the cathode, and then corresponding spot welding operation is carried out. In this way, the welding efficiency can be effectively ensured.
Optionally, the copper pad plate includes a copper plate and mating members, the copper plate is electrically connected with the mating members, and each mating member is arranged along a length direction of the slideway.
Optionally, the dimensions of the mating piece are the same as the dimensions of the copper plate along the length of the slideway.
Optionally, the copper pad comprises at least one copper plate, and when one copper pad comprises two or more copper plates, each copper plate of the same copper pad is electrically connected.
Optionally, the copper backing plate further comprises a driving part, wherein the driving part is connected with the action part and can drive the action part to move to each copper backing plate.
Optionally, the driving part comprises a driving motor and a gear, the gear is rotatably connected with the action part, the slideway comprises a rack meshed with the gear, and the driving motor can act on the action part through the gear and the rack to slide along the slideway.
Optionally, the actuating part is a cylinder or a hydraulic cylinder, and the abutting piece is connected with a piston rod of the cylinder or a piston rod of the hydraulic cylinder.
The application also provides a single-sided spot welding device which comprises a positive electrode welding gun and the welding negative electrode connecting device.
The technical effects of the single-sided spot welding device with the welding negative electrode connecting device are similar to those of the welding negative electrode connecting device, and the description is omitted herein for saving the space.
Optionally, the welding device further comprises a sliding rail, the positive electrode welding gun can slide along the sliding rail, the action part of the welding negative electrode connecting device is fixed on the sliding rail, the sliding rail is perpendicular to the sliding rail, and the sliding rail can slide along the sliding rail.
Drawings
Fig. 1 is a schematic structural view of a single-sided spot welding apparatus provided in an embodiment of the present application.
In fig. 1, the reference numerals are as follows:
1-an action part; 2-an abutment; 3-a slideway; 4-copper backing plate, 41-copper plate, 42-mating piece, 43-connecting piece; 51-driving a motor; 6-sliding rails; 7-positive electrode welding gun.
Detailed Description
In order to make the technical solution of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the application provides a single-sided spot welding equipment and a welding negative electrode connecting device, wherein the single-sided spot welding equipment comprises a positive electrode welding gun and the welding negative electrode connecting device. When the welding base material is subjected to single-sided spot welding, only one side surface of the welding base material is subjected to spot welding operation, and the welding negative electrode connecting device comprises a copper pad plate which is arranged on the back surface (the side surface far away from the spot welding operation) of the welding base material, and the copper pad plate is used as a negative electrode, so that a low-resistance passage can be provided for welding current.
If the number of welding spots of the welding base material is one, only one copper pad plate is used as the negative electrode, if the number of welding spots of the welding base material is a plurality of and one copper pad plate is used as the negative electrode, current is shunted from the surface of the welding base material, if the number of welding spots on a single copper plate exceeds a certain number, the current is shunted too much, so that the condition of cold joint can occur, if a plurality of copper pad plates are used as the welding negative electrode, and the copper pad plates connected with the negative electrode of the welding machine are manually switched during welding, so that the operation is more complicated and the efficiency is lower.
In the welding negative electrode connecting device provided in this embodiment, the welding negative electrode connecting device includes a plurality of copper backing plates 4, and each copper backing plate 4 is separated from each other, as shown in fig. 1, the welding negative electrode connecting device further includes an action part 1, an abutting part 2 and a slideway 3, wherein the abutting part 2 is connected with a negative electrode of a single-sided spot welding device, the abutting part 2 is connected with the action part 1, and the action part 1 can slide along the slideway 3 and can act on the abutting part 2 to make the abutting part 2 match with and separate from the copper backing plates 4.
That is, by providing a plurality of copper pad plates 4 independent of each other, each copper pad plate 4 can be laid on the back surface of the welding base material as a negative electrode when performing the single-sided spot welding operation on the welding base material, each copper pad plate 4 corresponds to a portion of the welding spot of the welding base material, and when the abutting piece 2 is engaged with the copper pad plate 4, the abutting piece 2 communicates with the copper pad plate 4, the copper pad plate 4 forms a welding negative electrode, and each welding spot corresponding to the copper pad plate 4 can be subjected to the welding operation by the positive electrode welding gun 7. That is, the welding spots of the welding base material are divided into a plurality of groups to be welded, each group of welding spots corresponds to one copper pad plate 4, in the welding process, the welding spots are performed in a group, specifically, the number of the welding spots corresponding to each copper pad plate 4 is not required, if the number of the welding spots in the group of welding spots is not more than 10, the size and the number of the copper pad plates 4 can be set according to the number of the welding spots of the base material, so that the number of the welding spots corresponding to a single copper pad plate 4 can be reduced, and the condition of cold welding caused by overlarge shunt is avoided.
The action part 1 can slide along the slideway 3 and can act on the abutting piece 2 to enable the abutting piece 2 to be matched with the copper pad plate 4, at the moment, the copper pad plate 4 is connected with the cathode, the welding points corresponding to the copper pad plate 4 are subjected to spot welding operation through the positive electrode welding gun 7, after welding is finished, the action part drives the abutting piece 2 to slide to the position of the next copper pad plate 4 along the slideway 3, the next copper pad plate 4 is communicated with the cathode, and then corresponding spot welding operation is carried out. In this way, the welding efficiency can be effectively ensured.
As shown in fig. 1, the copper pad 4 includes a copper plate 41 and mating members 42, the copper plate 41 and the mating members 42 are electrically connected, and each mating member 42 is arranged along the length direction of the slide 3. Wherein, the electrical connection means that the copper plate 41 and the matching piece 42 can conduct electricity.
Of course, in this embodiment, the copper pad 4 may be configured as a monolithic copper plate 41, and when configured as a structure including the copper plate 41 and the mating members 42, the disposition of the mating members 42 is facilitated, and the mating members 42 can be mated with each copper pad 4 during the process of sliding along the sliding way 3. Specifically, the connection member 43 between the copper plate 41 and the mating member 42 is also made of copper, and the connection member 43 and the copper plate 41 and the connection member 43 and the mating member 42 are fixed by bolts.
The copper plate 41 includes a contact surface, which is a side surface for adhering to the welding parent metal during welding, and the connection piece 43 of the copper pad 4 is located at a side of the copper plate 41 away from the contact surface. The connection 43 may also be provided with a bent structure to facilitate flexible placement.
As shown in fig. 1, along the length direction of the slideway 3, the size of the mating piece 42 is the same as the size of the copper plate 41, the positive electrode welding gun 7 and the action part 1 can slide along the slideway 3 together, when the positive electrode welding gun 7 welds the welding spots corresponding to the copper plate 41, the positive electrode welding gun will slide along the slideway 3, and in the process, the abutting piece 2 can be always kept to be mated with the mating piece 42, so that normal welding is ensured. Specifically, the mating member 42 and the copper plate 41 may be aligned or may be staggered, and may be specifically set according to the positions of the abutment member 2 and the positive electrode welding gun 7.
In this embodiment, each copper pad 4 may include only one copper plate 41, or may include two or more copper plates 41, and when the copper pad 4 includes two or more copper plates 41, the copper plates 41 in the same copper pad 4 are electrically connected. That is, the copper pads 4 are separated from each other, and the copper pads 41 in the same copper pad 4 are electrically connected to each other. Specifically, the number and shape of the copper plates 41 in each copper pad 4 may be set according to the distribution of the welding points of the welding base material. The provision of the plurality of copper plates 41 can reduce the overall volume of the copper plates 41, improve the flexibility of arrangement and reduce the cost. The number of copper plates 41 in each copper pad plate 4 may be the same or different.
The welding negative electrode connecting device also comprises a driving part which is connected with the action part 1 and can drive the action part 1 to slide to the positions of the copper pad plates 4 along the slide way 3. Alternatively, in the present embodiment, the manual operation unit 1 may be slid along the slide 3 during welding of the welding base material. The arrangement of the driving part can reduce manual operation and improve welding efficiency.
Specifically, in this embodiment, the specific structure of the driving portion is not limited, and if it is configured to include a driving motor 51 and a gear, the slideway 3 includes a rack, the rack and the gear mesh, and the gear is rotatably connected with the actuating portion 1, when the driving motor 51 drives the gear to rotate, the gear can be driven to rotate along the length direction of the rack, and then the actuating portion 1 and the abutment 2 are driven to move along the length direction of the rack. Alternatively, in the present embodiment, the driving section may be configured to include the driving motor 51 and the nut, and the slide 3 may include a screw or the like.
In the present embodiment, the operation unit 1 may be configured to act on the abutment 2 to engage with or disengage from the copper pad 4, and specifically, the abutment 2 may be a cylinder or a hydraulic cylinder, and a piston rod of the cylinder or a piston rod of the hydraulic cylinder may be connected to the abutment 2. Of course, the operation unit 1 may be configured to include a motor, a screw, and a nut. When the operation unit 1 is provided as a cylinder or a hydraulic cylinder, the overall structure can be simplified.
As shown in fig. 1, the single-sided spot welding apparatus provided in this embodiment further includes a slide rail 6, the positive electrode welding gun 7 can slide along the slide rail 6, the action part 1 of the welding negative electrode connecting device is fixed on the slide rail 6, the slide rail 6 is disposed perpendicular to the slide rail 3, and the slide rail 6 can slide along the slide rail 3. That is, the slide rail 6, the positive electrode welding gun 7, and the operation portion 1 can slide along the slide rail 3 together under the driving action of the driving portion, and at the same time, the positive electrode welding gun 7 can also slide along the slide rail 6, so that the positive electrode welding gun 7 can move to an arbitrary position of the welding base material, and further, spot welding operation at an arbitrary position is realized.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be comprehended within the scope of the present application.
Claims (9)
1. A welding negative electrode connecting device is characterized by comprising an action part (1), an abutting piece (2), a slideway (3) and a plurality of copper pad plates (4) which are separated from each other, wherein the abutting piece (2) is connected with the negative electrode of a single-sided spot welding device;
the abutting piece (2) is connected with the action part (1), and the action part (1) can slide along the slideway (3) and acts on the abutting piece (2) to be matched with and separated from the copper pad plate (4).
2. The welding negative electrode connection device according to claim 1, characterized in that the copper pad plate (4) comprises a copper plate (41) and mating members (42), the copper plate (41) and the mating members (42) being electrically connected, each mating member (42) being arranged along the length direction of the slideway (3).
3. The welding negative electrode connection device according to claim 2, characterized in that the dimensions of the mating piece (42) are the same as the dimensions of the copper plate (41) along the length of the slideway (3).
4. The welded anode connection according to claim 2, characterized in that the copper pad plates (4) comprise at least one copper plate (41), and when one copper pad plate (4) comprises two or more copper plates (41), each copper plate (41) of the same copper pad plate (4) is electrically connected.
5. The welding negative electrode connection device according to any one of claims 1-4, further comprising a driving part connected to the action part (1) and capable of driving the action part (1) to move to each of the copper backing plates (4).
6. The welding negative electrode connection apparatus according to claim 5, wherein the driving portion includes a driving motor (51) and a gear rotatably connected to the operating portion (1), the slide (3) includes a rack engaged with the gear, and the driving motor (51) is capable of sliding along the slide (3) by acting on the operating portion (1) through the gear and the rack.
7. The welding negative electrode connection device according to any one of claims 1-4, characterized in that the actuating part (1) is a cylinder or a hydraulic cylinder, and the abutment (2) is connected to a piston rod of the cylinder or a piston rod of the hydraulic cylinder.
8. A single-sided spot welding device characterized by comprising a positive electrode welding gun (7) and a welding negative electrode connecting device according to any one of claims 1-7.
9. The single-sided spot welding device according to claim 8, further comprising a slide rail (6), wherein the positive electrode welding gun (7) is capable of sliding along the slide rail (6), the action part (1) of the welding negative electrode connecting device is fixed to the slide rail (6), the slide rail (6) is arranged perpendicular to the slide rail (3), and the slide rail (6) is capable of sliding along the slide rail (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223165767.9U CN219443811U (en) | 2022-11-28 | 2022-11-28 | Single-sided spot welding equipment and welding negative electrode connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223165767.9U CN219443811U (en) | 2022-11-28 | 2022-11-28 | Single-sided spot welding equipment and welding negative electrode connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219443811U true CN219443811U (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223165767.9U Active CN219443811U (en) | 2022-11-28 | 2022-11-28 | Single-sided spot welding equipment and welding negative electrode connecting device |
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| Country | Link |
|---|---|
| CN (1) | CN219443811U (en) |
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- 2022-11-28 CN CN202223165767.9U patent/CN219443811U/en active Active
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