Electrode welding head and welding device

Abstract

The electrode welding head comprises a first electrode connector, a copper plate and a mounting plate, the copper plate is connected with the first electrode connector, the copper plate is mounted on the mounting plate, the mounting plate is provided with two horizontal adjusting devices, and the two horizontal adjusting devices are arranged on the two sides of the copper plate respectively. The two horizontal adjusting devices are arranged on the mounting plate, the horizontal state of the copper plate can be accurately adjusted, it is guaranteed that the electrode welding head is always kept horizontal in the welding process, and therefore it is guaranteed that the welding pressure is evenly distributed, and the welding quality is improved. The two horizontal adjusting devices are arranged on the two sides of the copper plate correspondingly, the levelness of the copper plate can be adjusted from the two sides, it is guaranteed that the electrode welding head is always kept in the horizontal state in the welding process, and therefore it is guaranteed that the welding pressure is evenly distributed, and the welding quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding, and in particular to an electrode welding head and a welding device. Background Art

[0002] Resistance welding, as an efficient and economical welding method, is widely used in industrial production. Its principle is to use the resistance heat generated by the passage of electric current through the weldment and the contact points as a heat source, thereby locally melting and bonding the weldment under the application of pressure. Resistance welding offers advantages such as high productivity, minimal weld deformation, and ease of automation. It can be categorized into various types, including spot welding, seam welding, projection welding, and butt welding, depending on the application and requirements.

[0003] The electrode welding head of a conventional resistance welding system typically features a flat surface, to which pressure is applied to complete the weld. However, this flat design makes it difficult to precisely control the horizontal position of the electrode welding head, resulting in uneven welding pressure distribution and poor weld quality. After extended welding operations, the electrode welding head is susceptible to vibration and shock generated during the welding process, causing it to deviate from its horizontal position. This can lead to insufficient weld joint strength and the development of cracks or weld defects. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide an electrode welding head and a welding device, which can adjust the levelness to ensure the welding quality.

[0005] The above-mentioned purpose of this application is achieved through the following technical solutions:

[0006] An electrode welding head includes a first electrode connector, a copper plate and a mounting plate. The copper plate is connected to the first electrode connector, and the copper plate is mounted on the mounting plate. The mounting plate has two horizontal adjustment devices, and the two horizontal adjustment devices are respectively arranged on both sides of the copper plate.

[0007] The present application is further configured such that the horizontal adjustment device includes a horizontal adjustment bolt and a horizontal adjustment nut, the horizontal adjustment bolt passes through the mounting plate, the head of the horizontal adjustment bolt is located above the mounting plate, the horizontal adjustment nut is located below the mounting plate, and the head of the horizontal adjustment nut has a clamping end face corresponding to the upper end face of the mounting plate.

[0008] The present application further provides that the clamping end face has a plurality of protrusions.

[0009] The present application is further configured such that a plurality of screws are provided on the head of the horizontal adjustment nut, and the screws pass through the head of the horizontal adjustment nut and protrude from the clamping end surface to form the convex point.

[0010] The present application is further configured such that the electrode welding head also includes a locking bolt, and a first mounting hole and a second mounting hole are provided on the mounting plate, the first mounting hole passes through the mounting plate, the screw rod of the horizontal adjustment bolt passes through the first mounting hole, and the second mounting hole extends from the outside of the mounting plate to the first mounting hole, and the locking bolt is arranged in the second mounting hole, and the locking bolt can be operably pressed against the screw rod of the horizontal adjustment bolt.

[0011] The present application is further configured such that a first thread is provided in the second mounting hole, and a second thread matching the first thread is provided on the locking bolt.

[0012] The present application is further configured such that a cooling water flow channel is provided in the copper plate, and the cooling water flow channel forms a cooling water inlet and a cooling water outlet on the copper plate.

[0013] A welding device includes the above-mentioned electrode welding head, wherein the welding device also includes a second electrode connector, and the second electrode connector is arranged opposite to the first electrode connector.

[0014] The present application is further configured such that the second electrode connector is provided with a recess adapted for a saddle buckle.

[0015] The present application is further configured such that the welding device further includes a transformer and two connecting belts, and the transformer is respectively connected to the copper plate and the second electrode connector through the two connecting belts.

[0016] In summary, the beneficial technical effects of this application are:

[0017] 1. This application can accurately adjust the horizontal state of the copper plate by setting two horizontal adjustment devices on the mounting plate, ensuring that the electrode welding head always remains horizontal during the welding process, thereby ensuring uniform distribution of welding pressure and improving welding quality.

[0018] 2. The two level adjustment devices of this application are respectively arranged on both sides of the copper plate, and the levelness of the copper plate can be adjusted from both sides to ensure that the electrode welding head always remains horizontal during the welding process, thereby ensuring that the welding pressure is evenly distributed and improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the first electrode connector.

[0020] Figure 2 is a top view of the first electrode contact.

[0021] Figure 3 It is a perspective view of a welding device.

[0022] Figure 4It is a side view of the welding device.

[0023] Figure 5 This is a schematic diagram of a saddle buckle.

[0024] Figure 6 It is a schematic diagram of welding a saddle buckle to the workpiece to be welded.

[0025] Explanation of the accompanying symbols: 1. First electrode connector; 2. Copper plate; 21. Cooling water inlet; 22. Cooling water outlet; 3. Mounting plate; 4. Horizontal adjustment device; 41. Horizontal adjustment bolt; 411. Clamping end face; 412. Protrusion; 42. Horizontal adjustment nut; 5. Screw; 6. Locking bolt; 7. Second electrode connector; 71. Recess; 8. Transformer; 9. Connecting belt; M. Riding buckle; M1. Middle protrusion; M2. Side wing; M3. Protrusion; D. Part to be welded; L. Pull ring. DETAILED DESCRIPTION

[0026] The present application is further described in detail below with reference to the accompanying drawings.

[0027] like Figures 1-2 As shown, an electrode welding head includes a first electrode connector 1, a copper plate 2 and a mounting plate 3. The copper plate 2 is connected to the first electrode connector 1, and the copper plate 2 is mounted on the mounting plate 3. The mounting plate 3 has two horizontal adjustment devices 4, and the two horizontal adjustment devices 4 are respectively arranged on both sides of the copper plate 2.

[0028] Specifically, the horizontal adjustment device 4 includes a horizontal adjustment bolt 41 and a horizontal adjustment nut 42. The horizontal adjustment bolt 41 passes through the mounting plate 3. The head of the horizontal adjustment bolt 41 is located above the mounting plate 3. The horizontal adjustment nut 42 is located below the mounting plate 3. The head of the horizontal adjustment nut 42 has a clamping end face 411 corresponding to the upper end face of the mounting plate 3.

[0029] The copper plate 2 is precisely leveled by the leveling device 4. The two leveling devices 4 on the mounting plate 3 operate independently, thereby ensuring that the electrode welding head always maintains an ideal level state during the welding process, avoiding quality problems caused by uneven welding.

[0030] The design of the level adjustment device 4 allows the user to easily adjust the height of the copper plate 2 by simply rotating the nut. This process does not require complex tools or professional skills, significantly improving the efficiency and convenience of the operation.

[0031] When in use, the electrode welding head needs to be installed on an external fixing device. The way to install it on the external fixing device is to clamp it through the clamping end face 411 and the upper end face of the mounting plate 3, that is, the clamping end face 411 and the upper end face of the mounting plate 3 respectively clamp the upper and lower surfaces of the external fixing device, connect them through the horizontal adjustment bolt 41, and adjust the horizontality and lock it through the horizontal adjustment nut 42.

[0032] There are several protrusions 412 on the clamping end face 411. In a preferred embodiment, several screws 5 are provided on the head of the horizontal adjustment nut 42. The screws 5 pass through the head of the horizontal adjustment nut 42 and protrude from the clamping end face 411 to form protrusions 412. The external fixing device is provided with grooves corresponding to the protrusions 412. After installation, the protrusions 412 are sunk into the grooves to achieve position limitation.

[0033] By setting a screw 5 on the horizontal adjustment nut 42 to form a protrusion 412, which corresponds to the groove on the external fixing device, the design of the protrusion 412 sinking into the groove ensures the precise positioning of the electrode welding head on the external fixing device, avoiding the welding position offset due to installation deviation. The cooperation between the protrusion 412 and the groove effectively enhances the connection strength between the electrode welding head and the external fixing device, prevents loosening due to vibration or impact during welding, and improves the stability and safety of the welding process. Through the cooperation between the protrusion 412 and the groove, the installation of the electrode welding head becomes simpler and faster, without the need for additional positioning devices or operating steps, thereby improving production efficiency. The accuracy of the fixed position can effectively improve the repeatability of the welding process, ensuring that each weld can meet consistent quality standards.

[0034] Furthermore, the electrode welding head also includes a locking bolt 6. A first mounting hole and a second mounting hole are provided on the mounting plate 3. The first mounting hole passes through the mounting plate 3. The screw of the horizontal adjustment bolt 41 passes through the first mounting hole. The second mounting hole extends from the outside of the mounting plate 3 to the first mounting hole. The locking bolt 6 is arranged in the second mounting hole. The locking bolt 6 can be operably pressed against the screw of the horizontal adjustment bolt 41.

[0035] Furthermore, a first thread is provided in the second mounting hole, and a second thread matching the first thread is provided on the locking bolt 6 .

[0036] from Figure 1 and Figure 2 It can be seen that the horizontal adjustment bolt 41 and the locking bolt 6 are perpendicular to each other. After the horizontal adjustment device 4 is installed in place, the locking bolt 6 is used to press against the horizontal adjustment bolt 41 to fix the position of the horizontal adjustment bolt 41.

[0037] Locking bolt 6 effectively locks the position of horizontal adjustment bolt 41, preventing it from loosening due to vibration or impact during welding, thereby ensuring that the electrode welding head always maintains a perfectly horizontal position during welding. The fixing effect of locking bolt 6 enhances the stability of horizontal adjustment device 4, preventing it from loosening or falling off during welding, and improving the safety and reliability of the welding process.

[0038] In a preferred embodiment, a cooling water flow channel is provided in the copper plate 2 , and the cooling water flow channel forms a cooling water inlet 21 and a cooling water outlet 22 on the copper plate 2 .

[0039] The cooling water flows through the cooling water channel inside the copper plate 2, which can quickly take away the heat generated by the electrode welding head during the welding process, effectively reduce the temperature of the electrode welding head, prevent it from being deformed, damaged or degraded due to high temperature, and extend its service life. Effective cooling can make the electrode welding head always maintain a stable temperature, avoid welding parameter fluctuations caused by temperature changes, thereby improving welding quality and ensuring the stability and reliability of the welded joint. Effective cooling can reduce the wear rate of the electrode welding head, reduce thermal stress during welding, extend the service life of the equipment, and reduce production costs. By quickly dissipating heat, the cooling time between two welding operations can be shortened, welding efficiency can be improved, and thus production efficiency can be improved. Due to the design of the cooling water channel, the temperature can be reduced, and the electrode welding head can be suitable for higher power and higher current welding tasks, which broadens its scope of application.

[0040] like Figures 3 and 4 FIG. 1 shows a welding device including the electrode welding head described above. The welding device also includes a second electrode connector 7. The second electrode connector 7 is arranged opposite to the first electrode connector 1 and is located above the first electrode connector 1. One of the first and second electrode connectors 1 and 7 is a positive electrode connector, and the other is a negative electrode connector. Resistance welding is achieved by placing the first and second electrode connectors 1 and 7 on opposite sides of the product.

[0041] Furthermore, the second electrode connector 7 is provided with a recess 71 adapted to fit the saddle buckle M. Figure 5 and Figure 6 As shown, the saddle buckle M and the state after being welded to the part to be welded D are shown. It can be seen that the part where the saddle buckle M and the part to be welded D are welded is the side wing M2, and the middle protrusion M1 is used to pass through the pull ring L to facilitate the user to extract.

[0042] Preferably, the flank M2 of the saddle buckle M is flat. More preferably, a protrusion M3 is provided on the surface of the flank M2 facing the workpiece D to be welded. The provision of the protrusion M3 concentrates current and heat during resistance welding. Due to the relatively small area of ​​the protrusion M3, the current is primarily concentrated through the protrusion M3 during resistance welding, thereby increasing the current density and heat concentration in that area. The concentration of current and heat in the protrusion M3 reduces the temperature in other areas during welding, preventing overheating of material outside the weld zone and thus reducing weld deformation. The concentration of current and heat in the protrusion M3 allows the metal in that area to melt rapidly, forming a more secure weld and improving weld strength.

[0043] The welding device can be used for welding saddle buckles M. Preferably, the recess 71 and the central protrusion M1 have the same shape. When the central protrusion M1 is positioned within the recess 71, it fits snugly within the recess 71. The recess 71 precisely matches the shape of the saddle buckle M, ensuring that during welding, the central protrusion M1 of the saddle buckle M is secured within the recess 71, while the flanks M2 maintain close contact with both sides of the recess 71. This not only effectively prevents the saddle buckle M from moving during welding, but also avoids welding quality issues caused by positional deviation, thereby improving welding accuracy.

[0044] The recessed structure 71 can be directly adapted to the saddle buckle M without the need for additional positioning or fixing operations, and the welding position is also determined, thus saving time and ensuring that the welding position is accurate.

[0045] Furthermore, the welding device further includes a transformer 8 and two connecting belts 9 , and the transformer 8 is connected to the copper plate 2 and the second electrode terminal 7 respectively through the two connecting belts 9 .

[0046] Transformer 8 can precisely control the welding current based on different welding requirements, thereby stabilizing the welding process, improving welding quality, and reducing welding defects. Transformer 8 automatically adjusts its output voltage based on the welding load, minimizing energy loss and reducing energy consumption. By adjusting the output voltage of transformer 8, the characteristics of different welding materials, such as the melting point and resistivity of different metals, can be adapted, expanding the application range of the welding head. Transformer 8 can implement different welding modes, such as pulse welding and spot welding, to meet different welding requirements. Transformer 8 can effectively reduce welding current fluctuations, reduce welding failure rates, and improve the stability and reliability of the welding process.

[0047] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. An electrode welding head, characterized in that: The invention comprises a first electrode connector (1), a copper plate (2) and a mounting plate (3), wherein the copper plate (2) and the first electrode connector (1) are connected, the copper plate (2) is mounted on the mounting plate (3), and the mounting plate (3) is provided with two level adjustment devices (4), and the two level adjustment devices (4) are respectively arranged on both sides of the copper plate (2).

2. The electrode welding head according to claim 1, characterized in that: The horizontal adjustment device (4) includes a horizontal adjustment bolt (41) and a horizontal adjustment nut (42), wherein the horizontal adjustment bolt (41) passes through the mounting plate (3), the head of the horizontal adjustment bolt (41) is arranged above the mounting plate (3), and the horizontal adjustment nut (42) is arranged below the mounting plate (3), and the head of the horizontal adjustment nut (42) has a clamping end face (411) corresponding to the upper end face of the mounting plate (3).

3. The electrode welding head according to claim 2, characterized in that: The clamping end surface (411) is provided with a plurality of protrusions (412).

4. The electrode welding head according to claim 3, characterized in that: A plurality of screws (5) are provided on the head of the horizontal adjustment nut (42), and the screws (5) pass through the head of the horizontal adjustment nut (42) and protrude from the clamping end surface (411) to form the convex point (412).

5. The electrode welding head according to claim 2, characterized in that: It also includes a locking bolt (6), a first mounting hole and a second mounting hole are provided on the mounting plate (3), the first mounting hole passes through the mounting plate (3), the screw rod of the horizontal adjustment bolt (41) passes through the first mounting hole, the second mounting hole extends from the outside of the mounting plate (3) to the first mounting hole, the locking bolt (6) is arranged in the second mounting hole, and the locking bolt (6) can be operably pressed against the screw rod of the horizontal adjustment bolt (41).

6. The electrode welding head according to claim 5, characterized in that: A first thread is provided in the second mounting hole, and a second thread matching the first thread is provided on the locking bolt (6).

7. The electrode welding head according to claim 1, characterized in that: A cooling water flow channel is provided in the copper plate (2), and a cooling water inlet (21) and a cooling water outlet (22) are formed on the copper plate (2).

8. A welding device comprising the electrode welding head according to any one of claims 1 to 7, characterized in that: It also includes a second electrode connector (7), which is arranged opposite to the first electrode connector (1).

9. The welding device according to claim 8, characterized in that The second electrode connector (7) is provided with a recess (71) adapted to fit the saddle buckle (M).

10. The welding device according to claim 8, characterized in that It also includes a transformer (8) and two connecting belts (9), wherein the transformer (8) is connected to the copper plate (2) and the second electrode connector (7) respectively via the two connecting belts (9).

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