Welding electrode structure and welding equipment

Abstract

The utility model relates to a welding electrode structure and welding equipment. The welding electrode structure comprises an electrode arm, an electrode cap, a clamping plate, a sleeve and a nut, a mounting hole is formed in one end of the electrode arm; one end of the electrode cap is inserted into the mounting hole, and an annular groove is formed in the side surface of the electrode cap; a clamping opening is formed in the clamping plate, and the clamping plate is clamped on the annular groove through the clamping opening; the sleeve is arranged on the electrode cap in a sleeving manner, and external threads are arranged on the sleeve; and the nut is screwed on the sleeve. The welding electrode structure is provided with the clamping plate, the sleeve and the nut, the sleeve is in threaded connection with the nut, and the clamping plate is clamped on the electrode cap to limit the sleeve and the nut between the electrode cap and the electrode arm; when external force is applied through a wrench to enable the nut to rotate relative to the sleeve, the overall length of the structure composed of the sleeve and the nut is increased, so that axial force is applied to the clamping plate, the electrode cap connected with the clamping plate in a clamped mode is ejected out of the mounting hole, disassembly is efficient, and the electrode cap is not prone to being damaged.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding electrode structure and welding equipment. Background Technology

[0002] Resistance welding is a highly efficient joining process that is widely used in industrial production. In this process, the welding electrode is the core component, and the performance and condition of the working end of the welding electrode directly affect the welding quality and production stability.

[0003] Currently, the tapered fit method is mostly used to install the electrode into the tapered hole of the electrode arm. The tapered connection method provides a reliable connection and precise alignment. However, in work scenarios where the electrode needs to be frequently repaired and replaced, the disassembly and assembly process becomes extremely cumbersome and time-consuming. Special tools and a large disassembly force are usually required to remove the electrode. Sometimes, even a strong knocking is required. Not only is the operation cumbersome, but it may also damage the tapered mating surface and affect subsequent welding work. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the fact that the existing technology mostly uses a tapered fit to install the electrode into the tapered hole of the electrode arm. The tapered connection method provides a reliable connection and accurate alignment, but in work scenarios where the electrode needs to be frequently repaired and replaced, the disassembly and assembly process becomes extremely cumbersome and time-consuming. Usually, special tools and a large disassembly force are required to remove the electrode, and sometimes even a strong knocking is required. Not only is the operation cumbersome, but it may also damage the tapered mating surface and affect the subsequent welding work.

[0005] To solve the above-mentioned technical problems, this utility model provides a welding electrode structure, including,

[0006] An electrode arm, one end of which is coaxially provided with a mounting hole;

[0007] An electrode cap, one end of which is inserted into the mounting hole, has an annular groove coaxially formed on the side of the electrode cap away from the electrode arm.

[0008] A card plate, wherein a slot is provided on the card plate, and the card plate is engaged with the annular groove through the slot;

[0009] A sleeve includes a main body and a screw-in part connected coaxially. The main body is a cylindrical structure, and the screw-in part is a regular hexagonal plate structure. A central through hole is provided on the sleeve, which coaxially passes through the main body and the screw-in part. The sleeve is fitted onto the electrode cap through the central through hole and is located between the electrode arm and the clamping plate. An external thread is provided on the circumferential surface of the main body.

[0010] A nut, which is screwed onto the main body.

[0011] In one embodiment of the present invention, a connecting seat is included. The connecting seat includes a connecting seat body and a pressure plate. One end of the connecting seat body is provided with a first through groove with a semi-circular cross-section. One end of the pressure plate is provided with a second through groove that matches the first through groove. The pressure plate is connected to the connecting seat body by a plurality of fasteners and presses the electrode arm between the first through groove and the second through groove.

[0012] In one embodiment of this utility model, the mounting hole is a tapered hole.

[0013] In one embodiment of the present invention, the electrode cap includes a plug end, which is conical in shape matching the shape of the mounting hole.

[0014] In one embodiment of this utility model, the card plate is a rectangular plate, and a U-shaped slot is vertically opened on the card plate.

[0015] In one embodiment of this utility model, the thickness of the card plate matches the width of the annular groove, and the width of the card opening matches the diameter of the bottom of the annular groove.

[0016] In one embodiment of this utility model, the thickness of the nut corresponds to the height of the main body.

[0017] In one embodiment of this utility model, the main body is located on the side closer to the electrode arm, and the screw-in part is located on the side closer to the card plate.

[0018] In one embodiment of this utility model, a sealing ring is fitted on the electrode cap between it and the inner wall of the mounting hole.

[0019] A welding apparatus comprising a welding electrode structure as described in any of the preceding claims.

[0020] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0021] The present invention discloses a welding electrode structure and welding equipment, comprising a clamping plate, a sleeve, and a nut, wherein the sleeve and nut are threadedly connected, and the clamping plate is engaged with the electrode cap to restrict the sleeve and nut between the sleeve and the electrode arm; when an external force is applied by a wrench to rotate the nut relative to the sleeve, the overall length of the structure consisting of the sleeve and nut increases, thereby applying an axial force to the clamping plate, pushing the electrode cap engaged with the clamping plate out of the mounting hole, which is not only efficient in disassembly but also less likely to damage the electrode cap; the entire electrode structure is simple in structure, low in manufacturing and use costs, and has high practicality. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] Figure 1 This is a perspective view of the welding electrode structure of a preferred embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the welding electrode structure of a preferred embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the electrode arm of the welding electrode structure of a preferred embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the electrode cap of the welding electrode structure of a preferred embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the card plate of the welding electrode structure of the preferred embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the sleeve of the welding electrode structure of a preferred embodiment of the present invention.

[0029] Explanation of reference numerals in the accompanying drawings: 1. Electrode arm; 11. Mounting hole; 2. Electrode cap; 21. Annular groove; 3. Clamping plate; 31. Bayonet; 4. Sleeve; 41. Main body; 42. Screw-in part; 43. Central through hole; 5. Nut; 6. Connecting seat; 61. Connecting seat body; 611. First through groove; 62. Pressure plate; 621. Second through groove. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0031] Reference Figures 1-6 As shown, a welding electrode structure of this utility model includes,

[0032] Electrode arm 1, one end of which is coaxially provided with a mounting hole 11;

[0033] Electrode cap 2, one end of which is inserted into mounting hole 11, and an annular groove 21 is coaxially formed on the side of electrode cap 2 away from electrode arm 1.

[0034] The card plate 3 has a slot 31, and the card plate 3 is snapped into the annular groove 21 through the slot 31.

[0035] Sleeve 4 includes a main body 41 and a screwing part 42 connected coaxially. The main body 41 is a cylindrical structure, and the screwing part 42 is a regular hexagonal plate structure. A central through hole 43 is provided on the sleeve 4, which coaxially passes through the main body 41 and the screwing part 42. The sleeve 4 is sleeved on the electrode cap 2 through the central through hole 43 and is located between the electrode arm 1 and the clamping plate 3. An external thread is provided on the circumferential surface of the main body 41.

[0036] Nut 5 is screwed onto the main body 41.

[0037] Specifically, when installing the electrode cap 2, first insert the clamping plate 3 perpendicularly into the annular groove 21, then insert the sleeve 4 from the insertion end of the electrode cap 2, then screw the nut 5 onto the sleeve 4, then insert the insertion end of the electrode cap 2 into the mounting hole 11, and finally make the two ends of the sleeve 4 abut against the electrode arm 1 and the clamping plate 3 respectively.

[0038] Specifically, when it is necessary to disassemble the electrode cap 2, first use one wrench to clamp the screw joint 42, and then use another wrench to clamp the nut 5. Rotate the two wrenches in opposite directions so that the nut 5 rotates relative to the sleeve 4 until the end of the nut 5 near the electrode arm 1 abuts against it. Continue to rotate the wrench so that the distance between the nut 5 and the screw joint 42 of the sleeve 4 continues to increase. Since the nut 5 cannot move axially when it abuts against the electrode arm 1, the externally applied rotational force is converted into an axial force applied to the clamping plate 3, thereby pushing the clamping plate 3 and the electrode cap 2 clamped to it out of the mounting hole 11, and completing the disassembly.

[0039] This utility model discloses a welding electrode structure comprising a clamping plate 3, a sleeve 4, and a nut 5. The sleeve 4 and the nut 5 are threadedly connected, and the clamping plate 3 is engaged with the electrode cap 2, restricting the sleeve 4 and the nut 5 between them and the electrode arm 1. When an external force is applied by a wrench to rotate the nut 5 relative to the sleeve 4, the overall length of the structure consisting of the sleeve 4 and the nut 5 increases, thereby applying an axial force to the clamping plate 3, which pushes the electrode cap 2, which is engaged with the clamping plate 3, out of the mounting hole 11. This not only makes disassembly efficient but also minimizes the risk of damage to the electrode cap 2. The entire electrode structure is simple in structure, inexpensive to manufacture and use, and highly practical.

[0040] Reference Figure 2As shown, further, a connecting seat 6 is included. The connecting seat 6 includes a connecting seat body 61 and a pressure plate 62. One end of the connecting seat body 61 has a first through groove 611 with a semi-circular cross-section. One end of the pressure plate 62 has a second through groove 621 that matches the first through groove 611. The pressure plate 62 is connected to the connecting seat body 61 by multiple fasteners and presses the electrode arm 1 between the first through groove 611 and the second through groove 621. Specifically, during assembly, the pressure plate 62 is first connected to the connecting seat body 61 by fasteners (at this time, the positions of the first through groove 611 and the second through groove 621 correspond to each other), and the fasteners are not fully tightened to facilitate inserting the electrode arm 1 into the connecting hole formed by the first through groove 611 and the second through groove 621. The electrode arm 1 is adjusted to a suitable position, and then the fasteners are tightened to fix it.

[0041] Furthermore, the mounting hole 11 is a tapered hole.

[0042] Furthermore, the electrode cap 2 includes a plug-in end, which is conical in shape to match the mounting hole. The conical plug-in end facilitates insertion into the mounting hole 11, and during use, due to axial pressure, the plug-in end and the conical hole will become increasingly tighter as they are inserted, preventing the electrode cap 2 from coming off.

[0043] Reference Figure 5 As shown, the clamping plate 3 is further defined as a rectangular plate with a U-shaped notch 31 vertically formed on it. The opening end of the notch 31 has rounded corners to facilitate the clamping plate 3's insertion into the annular groove 21. It is conceivable that the clamping plate 3 should not be too small; it can be slightly larger than the outer diameter of the screw-in part 42. This way, when a wrench is engaged with the screw-in part 42, the clamping plate 3 can provide a certain limiting and supporting force for the wrench, facilitating operation by the worker.

[0044] Furthermore, the thickness of the card plate 3 matches the width of the annular groove 21, and the width of the slot 31 matches the bottom diameter of the annular groove 21, ensuring that the card plate 3 can be smoothly inserted into the annular groove 21 while not easily falling off, making it convenient for workers to install.

[0045] Furthermore, the thickness of the nut 5 corresponds to the height of the main body 41. More preferably, a chamfer is provided at the end of the electrode arm 1, and the minimum diameter of the chamfer is slightly smaller than the diameter of the inner hole of the nut 5; in this way, when the nut 5 is rotated, the chamfer can play a limiting and guiding role, which can prevent the nut 5 from lateral displacement, which not only facilitates the smooth removal of the electrode cap 2, but also protects the electrode cap 2 to a certain extent.

[0046] Furthermore, the main body 41 is located on the side closer to the electrode arm 1, and the screw-on part 42 is located on the side closer to the clamping plate 3.

[0047] Furthermore, a sealing ring is fitted on the electrode cap 2 between it and the inner wall of the mounting hole 11 to ensure the sealing of the connection position.

[0048] This utility model also discloses a welding device, including the welding electrode structure as described above.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A welding electrode structure, characterized in that: include, An electrode arm, one end of which is coaxially provided with a mounting hole; An electrode cap, one end of which is inserted into the mounting hole, has an annular groove coaxially formed on the side of the electrode cap away from the electrode arm. A card plate, wherein a slot is provided on the card plate, and the card plate is engaged with the annular groove through the slot; A sleeve includes a main body and a screw-in part connected coaxially. The main body is a cylindrical structure, and the screw-in part is a regular hexagonal plate structure. A central through hole is provided on the sleeve, which coaxially passes through the main body and the screw-in part. The sleeve is fitted onto the electrode cap through the central through hole and is located between the electrode arm and the clamping plate. An external thread is provided on the circumferential surface of the main body. A nut, which is screwed onto the main body.

2. The welding electrode structure according to claim 1, characterized in that: The device includes a connector, which comprises a connector body and a pressure plate. One end of the connector body has a first through groove with a semi-circular cross-section, and one end of the pressure plate has a second through groove that matches the first through groove. The pressure plate is connected to the connector body by a plurality of fasteners and presses the electrode arm between the first through groove and the second through groove.

3. The welding electrode structure according to claim 1, characterized in that: The mounting hole is a tapered hole.

4. The welding electrode structure according to claim 3, characterized in that: The electrode cap includes a plug end that is conical in shape to match the shape of the mounting hole.

5. The welding electrode structure according to claim 1, characterized in that: The card plate is a rectangular plate, and a U-shaped slot is vertically opened on the card plate.

6. The welding electrode structure according to claim 5, characterized in that: The thickness of the card plate matches the width of the annular groove, and the width of the card opening matches the diameter of the bottom of the annular groove.

7. The welding electrode structure according to claim 1, characterized in that: The thickness of the nut corresponds to the height of the main body.

8. The welding electrode structure according to claim 1, characterized in that: The main body is located on the side closer to the electrode arm, and the screw-in part is located on the side closer to the card plate.

9. The welding electrode structure according to claim 1, characterized in that: The electrode cap is fitted with a sealing ring located between itself and the inner wall of the mounting hole.

10. A welding device, characterized in that: Includes the welding electrode structure as described in any one of claims 1-9.

Images