CN219053210U - Flexible arm welding gun for resistance spot welding - Google Patents
Flexible arm welding gun for resistance spot welding Download PDFInfo
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- CN219053210U CN219053210U CN202222967400.2U CN202222967400U CN219053210U CN 219053210 U CN219053210 U CN 219053210U CN 202222967400 U CN202222967400 U CN 202222967400U CN 219053210 U CN219053210 U CN 219053210U
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- welding gun
- fixing
- rod
- resistance spot
- welding
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Abstract
The utility model relates to the technical field of resistance spot welding, in particular to a flexible arm welding gun for resistance spot welding. A flexible arm welding gun for resistance spot welding, comprising a welding gun part, characterized in that: the welding gun part is characterized in that the rear end of the welding gun part is connected with the fixing part, the fixing part comprises a fixing part shell and a hook-shaped piece, the fixing part shell is sleeved outside the rear end of the welding gun part and connected through a fixing rod, one side of the fixing rod is provided with one end of the hook-shaped piece, and the other end of the hook-shaped piece is connected with the driving structure through a transfer rod. Compared with the prior art, the gun changing disc is simple in structure, replaces a gun changing disc with a complex structure through the fixing part, is matched with different welding guns to be used, meets production requirements, and is convenient to use.
Description
Technical Field
The utility model relates to the technical field of resistance spot welding, in particular to a flexible arm welding gun for resistance spot welding.
Background
The main connecting process in the automobile manufacturing process is resistance spot welding, which is a method for locally heating a weldment by using resistance heat generated by passing current through the weldment and a contact part as a heat source and simultaneously pressurizing for welding. The generation of current and pressure is performed by a resistance welding gun, and thus the welding gun is an indispensable part of resistance spot welding. However, the size and the structure of the welding gun are constrained because the welding gun needs to consider the load of the robot and the production and maintenance cost in the design and manufacturing process.
Along with the development of the automobile industry, the method is highly automated and integrated, and simultaneously, from the economical point of view, an automobile main machine factory or a spare and accessory part product is produced by sharing one platform or one production line, and the design and production concept becomes the main stream of development. When sharing the platform or the production line, because the product structure difference leads to welder structure and product to conflict, leads to welder can not satisfy the requirement to need to change welder and realize the spot welding of different products.
In view of the above, the conventional method is to replace the welding gun by replacing the gun tray, but the following problems exist: 1. the gun changing disc is complex in structure and relatively high in price, and a plurality of gun changing discs are put into a production line, so that the production cost is increased. 2. The gun changing disc is complex in structure, faults occur easily in the using process, meanwhile, the maintenance requirement of the gun changing disc on the skills of maintenance personnel is high, and long-time shutdown can be brought in the maintenance process, so that the production efficiency is affected. 3. The gun changing disc is heavy in weight, high in requirement on the load of the robot, and robot equipment with larger load is needed.
Disclosure of Invention
The utility model provides a flexible arm welding gun for resistance spot welding, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, a flexible arm welding gun for resistance spot welding is designed, including a welding gun part, characterized in that: the welding gun part is characterized in that the rear end of the welding gun part is connected with the fixing part, the fixing part comprises a fixing part shell and a hook-shaped piece, the fixing part shell is sleeved outside the rear end of the welding gun part and connected through a fixing rod, one side of the fixing rod is provided with one end of the hook-shaped piece, and the other end of the hook-shaped piece is connected with the driving structure through a transfer rod.
The driving structure comprises a transmission rod and an air cylinder, one end of the transmission rod is connected with one end of the switching rod, and the other end of the transmission rod is connected with the air cylinder.
The fixing part shell is internally provided with an air cylinder mounting groove.
The welding gun part comprises an electrode cap, an electrode connecting rod and a connecting block, wherein the front end of the shell of the fixing part is connected with one end of the connecting block, the other end of the connecting block is connected with one end of the electrode connecting rod, and the other end of the electrode connecting rod is connected with the electrode cap.
One side of the connecting block is provided with a threaded mounting hole, and the connecting block is fixed with the electrode connecting rod through a bolt.
The welding gun is characterized in that a first fixing rod mounting hole penetrating in the left-right direction is formed in the rear end of the welding gun part, a second fixing rod mounting hole matched with the first fixing rod mounting hole is formed in the front end of the fixing part shell, and the fixing rod is inserted into the first fixing rod mounting hole and connected with the connecting block in the second fixing rod mounting hole.
The upper end and the lower end of the joint of the welding gun part and the fixed part shell are respectively provided with a connecting and fixing plate.
The structure of the upper part of the rear side of the welding gun part is a wedge-shaped structure.
Compared with the prior art, the welding gun replacing device is simple in structure, replaces a gun replacing disc with a complex structure through the fixing part, is matched with different welding guns to use, meets production requirements, and is convenient to use.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a front view of the present utility model.
Fig. 3 is a schematic view of the structure of the welding gun part of the present utility model.
Fig. 4 is a schematic structural view of the fixing portion of the present utility model.
Fig. 5 is a cross-sectional view of the present utility model at a fixing portion.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the rear end of the welding gun part 1 is connected with a fixing part 2, the fixing part 2 comprises a fixing part shell 2-1 and a hook-shaped member 2-3, the outer side of the rear end of the welding gun part 1 is sleeved with the fixing part shell 2-1 and is connected through a fixing rod 3, one side of the fixing rod 3 is provided with one end of the hook-shaped member 2-3, and the other end of the hook-shaped member 2-3 is connected with a driving structure through a switching rod 2-4.
The driving structure comprises a transmission rod 2-5 and an air cylinder 2-2, one end of the transfer rod 2-4 is connected with one end of the transmission rod 2-5, and the other end of the transmission rod 2-5 is connected with the air cylinder 2-2.
The fixed part shell 2-1 is internally provided with a cylinder mounting groove 2-7.
The welding gun part 1 comprises an electrode cap 1-1, an electrode connecting rod 1-2 and a connecting block 1-3, wherein the front end of the shell 2-1 of the fixing part is connected with one end of the connecting block 1-3, the other end of the connecting block 1-3 is connected with one end of the electrode connecting rod 1-2, and the other end of the electrode connecting rod 1-2 is connected with the electrode cap 1-1.
One side of the connecting block 1-3 is provided with a threaded mounting hole 1-4, and the connecting block 1-3 is fixed with the electrode connecting rod 1-2 through bolts.
The rear end of a connecting block 1-3 of the welding gun part 1 is provided with a first fixing rod mounting hole 1-5 penetrating in the left-right direction, the front end of a fixing part shell 2-1 is provided with a second fixing rod mounting hole 2-8 matched with the first fixing rod mounting hole 1-5, and the fixing rod 3 is inserted into the first fixing rod mounting hole 1-5 and the second fixing rod mounting hole 2-8 to connect the connecting block 1-3 with the fixing part shell 2-1.
The upper and lower ends of the connection block 1-3 of the welding gun part 1 and the connection part shell 2-1 are respectively provided with a connection fixing plate 4, the structure of the connection fixing plate 4 is U-shaped, the connection fixing plate 4 is matched with a bolt, and the fixing part shell 2-1 and the welding gun part 1 are externally connected.
The rear upper part of the welding gun part 1 has a wedge-shaped structure. When the wedge-shaped structure is particularly used, the wedge-shaped structure is convenient to extend into the fixed part shell 2-1, and assembly is convenient.
When the utility model is used, the needed electrode cap 1-1 and the electrode connecting rod 1-2 are selected according to the needs, then the electrode connecting rod 1-2 is connected with the connecting block 1-3, and then the connecting block 1-3 is connected with the fixed part shell 2-1 through the fixed rod 3. After the welding gun part is connected, the air cylinder 2-2 of the driving structure drives the hook-shaped piece 2-3 to move forwards through the transmission rod 2-5 and the switching rod 2-4 to hook the fixing rod 12, so that the welding gun part 1 and the fixing part 2 are ensured to be connected stably, and the welding gun part is fixed in the front-back direction.
Claims (8)
1. A flexible arm welding gun for resistance spot welding, comprising a welding gun part, characterized in that: the welding gun part is characterized in that the rear end of the welding gun part (1) is connected with the fixing part (2), the fixing part (2) comprises a fixing part shell (2-1) and a hook-shaped piece (2-3), the fixing part shell (2-1) is sleeved outside the rear end of the welding gun part (1) and connected through a fixing rod (3), one end of the hook-shaped piece (2-3) is arranged on one side of the fixing rod (3), and the other end of the hook-shaped piece (2-3) is connected with the driving structure through a switching rod (2-4).
2. A flexible arm welding gun for resistance spot welding as defined in claim 1, wherein: the driving structure comprises a transmission rod (2-5) and an air cylinder (2-2), one end of the transfer rod (2-4) is connected with one end of the transmission rod (2-5), and the other end of the transmission rod (2-5) is connected with the air cylinder (2-2).
3. A flexible arm welding gun for resistance spot welding as defined in claim 1, wherein: the fixing part shell (2-1) is internally provided with an air cylinder mounting groove (2-7).
4. A flexible arm welding gun for resistance spot welding as defined in claim 1, wherein: the welding gun part (1) comprises an electrode cap (1-1), an electrode connecting rod (1-2) and a connecting block (1-3), wherein one end of the connecting block (1-3) is connected to the front end of the shell (2-1) of the fixing part, one end of the electrode connecting rod (1-2) is connected to the other end of the connecting block (1-3), and the other end of the electrode connecting rod (1-2) is connected to the electrode cap (1-1).
5. A flexible arm welding gun for resistance spot welding as defined in claim 4, wherein: one side of the connecting block (1-3) is provided with a threaded mounting hole (1-4), and the connecting block (1-3) and the electrode connecting rod (1-2) are fixed through bolts.
6. A flexible arm welding gun for resistance spot welding according to claim 1 or 4, wherein: the welding gun is characterized in that a first fixing rod mounting hole (1-5) penetrating in the left-right direction is formed in the rear end of the welding gun part (1), a second fixing rod mounting hole (2-8) matched with the first fixing rod mounting hole (1-5) is formed in the front end of the fixing part shell (2-1), and the connecting block (1-3) is connected with the fixing part shell (2-1) by inserting the fixing rod (3) into the first fixing rod mounting hole (1-5) and the second fixing rod mounting hole (2-8).
7. A flexible arm welding gun for resistance spot welding according to claim 1 or 4, wherein: the upper end and the lower end of the joint of the welding gun part (1) and the fixed part shell (2-1) are respectively provided with a connecting and fixing plate (4).
8. A flexible arm welding gun for resistance spot welding according to claim 1 or 4, wherein: the structure of the upper part of the rear side of the welding gun part (1) is a wedge-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967400.2U CN219053210U (en) | 2022-11-08 | 2022-11-08 | Flexible arm welding gun for resistance spot welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967400.2U CN219053210U (en) | 2022-11-08 | 2022-11-08 | Flexible arm welding gun for resistance spot welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219053210U true CN219053210U (en) | 2023-05-23 |
Family
ID=86369876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222967400.2U Active CN219053210U (en) | 2022-11-08 | 2022-11-08 | Flexible arm welding gun for resistance spot welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219053210U (en) |
-
2022
- 2022-11-08 CN CN202222967400.2U patent/CN219053210U/en active Active
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