Welding electrode device

Abstract

The utility model discloses a welding electrode device which comprises a machine frame, an electrode assembly, a swing mechanism and an insulating part arranged between the electrode assembly and the swing mechanism, the electrode assembly is connected with the swing mechanism, and the swing mechanism is connected with the machine frame. According to the welding electrode device, during welding, the swing mechanism and the electrode assembly can swing relative to the rack, the welding electrode device adapts to the change of the space angle of a workpiece to be welded at a welding point, the structure is simple, adaptability is high, the welding effect is good, abrasion resistance is good, cost is low, and meanwhile the swing mechanism does not need to consider the conductivity of materials; a material with the strength higher than that of a conductive material can be adopted, the bearing capacity is higher, the structure is more reliable and durable, the swing mechanism can be lubricated, and abrasion is further reduced; the insulating part is arranged between the electrode assembly and the swing mechanism, so that current can be prevented from flowing to the rack and the swing mechanism during welding, unnecessary current shunting and loss are reduced, and the welding effect is good.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, in particular to a welding electrode device. Background Art

[0002] In existing steel bar welding production, the electrode block is usually fixed on a linear drive component and moved for welding. This form of resistance welding system has a relatively simple structure and is generally suitable for situations where the compression welding planes of steel meshes, thin-walled parts, etc. are basically in the same plane each time. However, for situations where the spatial angle of the workpiece to be welded changes at the welding point, for example, three steel bars cross each other and the three intersections need to be welded using resistance welding. Since the workpiece to be welded is non-precision machined and the positioning structure is not precisely positioned, it is difficult to ensure that the spatial angle of the electrode is actually consistent with the spatial angle of the workpiece to be welded. The poor contact between the electrode block and the workpiece to be welded may lead to a decrease in welding quality or even failure to weld.

[0003] The Chinese patent document with the announcement number CN211539898U discloses a universal electrode, which can make the electrode cap parallel to the surface of the workpiece to be welded according to actual needs by setting an electrode rod and an electrode cap that can rotate relatively, without adjusting the angle of the welding gun or the workpiece. However, there are still some defects in this technical solution: the ball head of the electrode rod and the electrode cap rotate relatively to adjust the angle, but the ball head is usually made of conductive materials such as copper or copper alloy, which has limited wear resistance and high replacement cost after wear. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a welding electrode device with simple structure, strong adaptability, good wear resistance, low cost and good welding effect.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A welding electrode device comprises a frame, an electrode assembly, a swing mechanism and an insulating member arranged between the electrode assembly and the swing mechanism, wherein the electrode assembly is connected to the swing mechanism, and the swing mechanism is connected to the frame.

[0007] As a further improvement of the above technical solution: the swing mechanism includes a mounting seat, ear plates arranged on both sides of the mounting seat and a pin shaft passing through the two ear plates, the frame is provided with a connecting rod, the connecting rod is provided with a spherical bearing, the pin shaft passes through the inner ring of the spherical bearing, the electrode assembly is connected to the mounting seat, and the insulating member is arranged between the electrode assembly and the mounting seat.

[0008] As a further improvement of the above technical solution: it also includes a limit component for limiting the swing amplitude of the swing mechanism.

[0009] As a further improvement of the above technical solution: the limiting assembly includes a limiting member arranged on the inner sides of the two ear plates, and there is a gap between the limiting member and the connecting rod.

[0010] As a further improvement of the above technical solution: it also includes an elastic reset component for resetting the swing mechanism.

[0011] As a further improvement of the above technical solution: the elastic reset assembly includes an elastic member arranged around the connecting rod, and the elastic member is connected between the frame and the ear plate.

[0012] As a further improvement of the above technical solution: the swing mechanism includes a mounting seat, the mounting seat is provided with a accommodating cavity, the frame is provided with a connecting rod, the connecting rod is provided with a ball head, the ball head is arranged in the accommodating cavity so that the mounting seat can swing relative to the connecting rod, the electrode assembly is connected to the mounting seat, and the insulating member is arranged between the electrode assembly and the mounting seat.

[0013] As a further improvement of the above technical solution: the mounting seat is provided with a limiter for limiting the swing amplitude of the mounting seat, the connecting rod is passed through the limiter and there is a gap between the outer wall and the limiter.

[0014] As a further improvement of the above technical solution: elastic members are arranged around the connecting rod, and the elastic members are connected between the frame and the limiting member.

[0015] As a further improvement of the above technical solution: the electrode assembly and the swing mechanism are detachably connected via a fastener.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] The welding electrode device of the utility model has a swing mechanism and an electrode assembly that can swing relative to a frame during welding to adapt to changes in the spatial angle of the workpiece to be welded at the welding point. The device has a simple structure, strong adaptability, and good welding effect. The welding angle can be adjusted without adjusting the angle of the frame or the workpiece. Compared with the technical solution of relative rotation of the electrode cap and the ball head, the device has good wear resistance and low cost. At the same time, the swing mechanism does not need to consider the conductive properties of the material, and can use materials with higher strength than conductive materials. The device has a stronger load-bearing capacity, a more reliable and durable structure, and can lubricate the swing mechanism to further reduce wear. An insulating member is arranged between the electrode assembly and the swing mechanism to prevent current from flowing to the frame and the swing mechanism during welding, thereby reducing unnecessary current shunting and loss and achieving good welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of a first embodiment of a welding electrode device of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the second embodiment of the welding electrode device of the utility model.

[0020] The numbers in the figure represent: 1. frame; 11. connecting rod; 12. ball head; 2. electrode assembly; 21. electrode seat; 22. electrode block; 3. swing mechanism; 31. mounting seat; 311. accommodating chamber; 32. pin shaft; 33. spherical bearing; 34. ear plate; 4. insulating part; 5. limit assembly; 51. limit member; 6. elastic reset assembly; 61. elastic member; 7. fastener. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] Figure 1An embodiment of the welding electrode device of the utility model is shown. The welding electrode device of this embodiment includes a frame 1, an electrode assembly 2, a swing mechanism 3 and an insulating member 4 arranged between the electrode assembly 2 and the swing mechanism 3. The electrode assembly 2 is connected to the swing mechanism 3, and the swing mechanism 3 is connected to the frame 1.

[0027] The welding electrode device of this embodiment, during welding, presses the electrode assembly 2 against the welding point of the workpiece to be welded. When the spatial angle of the workpiece to be welded at the welding point changes, the electrode assembly 2 can swing relative to the frame 1 through the swing mechanism 3 to adjust the welding position, and then perform subsequent welding, thereby adapting to the change of the spatial angle of the workpiece to be welded at the welding point. The structure is simple, adaptable, and has good welding effect, and there is no need to adjust the angle of the frame 1 or the workpiece. Compared with the technical solution of relative rotation of the electrode cap and the ball head, the wear resistance is good and the cost is low. At the same time, the swing mechanism 3 does not need to consider the conductive properties of the material, and can use materials with higher strength than conductive materials, with stronger bearing capacity, more reliable and durable structure, and the swing mechanism 3 can be lubricated to further reduce wear. An insulating member 4 is arranged between the electrode assembly 2 and the swing mechanism 3 to prevent the current from flowing to the frame 1 and the swing mechanism 3 during welding, reduce unnecessary current shunting and loss, and achieve good welding effect.

[0028] Preferably, in this embodiment, the insulating member 4 is an insulating plate, which has a simple and reliable structure. Of course, in other embodiments, the insulating member 4 can also be an insulating spacer, etc.

[0029] Further, in this embodiment, the swing mechanism 3 includes a mounting seat 31, ear plates 34 arranged on both sides of the mounting seat 31, and a pin 32 passing through the two ear plates 34, a connecting rod 11 is provided on the frame 1, a spherical bearing 33 is provided on the connecting rod 11, the pin 32 passes through the inner ring of the spherical bearing 33, the electrode assembly 2 is connected to the mounting seat 31, and the insulating member 4 is arranged between the electrode assembly 2 and the mounting seat 31. The electrode assembly 2, the mounting seat 31 and the ear plate 34 can swing relative to the frame 1 through the spherical bearing 33, and the spherical bearing 33 can bear axial and radial loads, and has a strong bearing capacity.

[0030] Preferably, in this embodiment, the electrode assembly 2 includes an electrode seat 21 and an electrode block 22 disposed on the electrode seat 21 , the electrode seat 21 is connected to the mounting seat 31 , and the insulating member 4 is disposed between the electrode assembly 2 and the electrode seat 21 , and the structure is simple.

[0031] Furthermore, in this embodiment, the welding electrode device further includes a limiter assembly 5 for limiting the swing amplitude of the swing mechanism 3. The limiter assembly 5 limits the swing amplitude of the electrode assembly 2, which can prevent the swing amplitude of the electrode assembly 2 from being too large, resulting in unstable operation or even damage to the electrode assembly 2.

[0032] Furthermore, in the present embodiment, the limiting assembly 5 includes a limiting member 51 disposed on the inner side of the two ear plates 34 (i.e., the limiting member 51 is located between the two ear plates 34), and there is a gap between the limiting member 51 and the connecting rod 11. In the present embodiment, the swing mechanism 3 itself has a limiting function: when the ear plate 34 swings to the point where the connecting rod 11 contacts the ear plate 34, the first limiting is achieved. When the amplitude of the first limiting is still too large to meet actual needs, the limiting assembly 5 is provided for a second limiting to limit a smaller swing amplitude. Specifically, when the swing mechanism 3 swings, when the limiting member 51 on the inner side of the two ear plates 34 swings to contact the connecting rod 11, the second limiting is achieved, and the structure is simple and reliable. Preferably, the limiting member 51 is detachably connected to the ear plate 34, so as to facilitate replacement of limiting members 51 of different specifications, and has a wide range of applications.

[0033] Furthermore, in this embodiment, the welding electrode device also includes an elastic reset component 6 for resetting the swing mechanism 3. In the initial state, the connecting rod 11 is vertically arranged with the mounting seat 31. Due to the adjustment of the welding angle during welding, the swing mechanism 3 will deviate from the initial position. By setting the elastic reset component 6, the initial position of the electrode assembly 2 can be kept basically consistent before each welding, and the welding consistency is high. At the same time, a certain resistance can be provided for the swing mechanism 3, which is convenient for controlling the swing angle of the swing mechanism 3.

[0034] Furthermore, in this embodiment, the elastic reset assembly 6 includes an elastic member 61 arranged around the connecting rod 11, and the elastic member 61 is connected between the frame 1 and the ear plate 34. By arranging the elastic member 61 around the connecting rod 11, after the electrode assembly 2 and the swing mechanism 3 swing in any direction, at least one side of the elastic member 61 can be pulled, so that it can be quickly and automatically reset, which is more convenient to use. Figure 1 As shown, in this embodiment, since the ear plate 34 is arranged at the outermost side of the mounting seat 31, the elastic member 61 is connected to the ear plate 34, so that when the electrode assembly 2 and the swing mechanism 3 swing, the elastic member 61 is not easy to interfere with other components. Among them, the elastic member 61 can be, for example, a coil spring, an elastic rope, etc., with a simple and reliable structure. Preferably, there are four elastic members 61 and they are evenly arranged in the circumferential direction, so that the force is evenly applied and the reset effect is better.

[0035] Furthermore, in this embodiment, the electrode assembly 2 and the swing mechanism 3 are detachably connected by a fastener 7 (specifically, the electrode seat 21 and the mounting seat 31 are detachably connected by a fastener 7). When in use, the fastener 7 connects and fastens the electrode assembly 2 and the mounting seat 31, and the insulating member 4 is pressed between the electrode assembly 2 and the mounting seat 31, and the structure is reliable; when the insulating member 4 or the electrode assembly 2 needs to be replaced, the connecting fastener 7 can be removed to replace the insulating member 4 or the electrode assembly 2, and the operation is simple. Among them, the fastener 7 can be, for example, a bolt, a screw, etc.

[0036] Embodiment 2:

[0037] Figure 2 Another embodiment of the welding electrode device of the utility model is shown. The welding electrode device of this embodiment has a structure basically the same as that of the first embodiment, and the differences include:

[0038] In this embodiment, the swing mechanism 3 includes a mounting seat 31, a receiving cavity 311 is provided on the mounting seat 31, a connecting rod 11 is provided on the frame 1, a ball head 12 is provided on the connecting rod 11, and the ball head 12 is provided in the receiving cavity 311 so that the mounting seat 31 can swing relative to the connecting rod 11, the electrode assembly 2 is connected to the mounting seat 31, and the insulating member 4 is provided between the electrode assembly 2 and the mounting seat 31. The ball head 12 and the receiving cavity 311 are relatively movable, so that the mounting seat 31 can swing relative to the connecting rod 11, with high freedom of movement and stronger adaptability. Compared with the welding electrode device of the first embodiment, the swing mechanism 3 of the welding electrode device of the present embodiment has fewer parts and a simpler structure.

[0039] Furthermore, in the present embodiment, a limiter 51 for limiting the swing amplitude of the mounting seat 31 is provided on the mounting seat 31, and the connecting rod 11 is inserted into the limiter 51 and there is a gap between the outer wall and the limiter 51. In the present embodiment, the swing mechanism 3 itself has a limiter function: when the ball head 12 and the accommodating chamber 311 move relative to each other so that the connecting rod 11 contacts the edge of the accommodating chamber 311, the first limit is achieved. When the amplitude of the first limit is still too large to meet the actual needs, the limiter 51 is provided to perform a second limit to limit a smaller swing amplitude. When the ball head 12 and the accommodating chamber 311 move relative to each other so that the connecting rod 11 contacts the limiter 51, the second limit is achieved, and the structure is simple and reliable. Preferably, in the present embodiment, the limiter 51 is a limiter ring.

[0040] Furthermore, in this embodiment, elastic members 61 are arranged around the connecting rod 11, and the elastic members 61 are connected between the frame 1 and the stopper 51. By arranging the elastic members 61 around the connecting rod 11, after the connecting rod 11 swings in any direction, at least one side of the elastic member 61 can be pulled, so that it can be quickly and automatically reset, which is more convenient to use. Figure 2 As shown, in this embodiment, since the limit member 51 is arranged below the mounting seat 31, the elastic member 61 is connected to the limit member 51, so that when the electrode assembly 2 and the swing mechanism 3 swing, the elastic member 61 is not easy to interfere with other components.

[0041] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above in the preferred embodiment, it is not used to limit the utility model. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model, still fall within the scope of protection of the technical solution of the utility model.

Claims

1. A welding electrode device, characterized in that: The invention comprises a frame (1), an electrode assembly (2), a swing mechanism (3), and an insulating member (4) arranged between the electrode assembly (2) and the swing mechanism (3); the electrode assembly (2) is connected to the swing mechanism (3), and the swing mechanism (3) is connected to the frame (1).

2. The welding electrode device according to claim 1, characterized in that: The swing mechanism (3) comprises a mounting seat (31), ear plates (34) arranged on both sides of the mounting seat (31), and a pin shaft (32) inserted into the two ear plates (34); a connecting rod (11) is arranged on the frame (1); a spherical bearing (33) is arranged on the connecting rod (11); the pin shaft (32) passes through the inner ring of the spherical bearing (33); the electrode assembly (2) is connected to the mounting seat (31); and the insulating member (4) is arranged between the electrode assembly (2) and the mounting seat (31).

3. The welding electrode device according to claim 2, characterized in that: It also includes a limiting component (5) for limiting the swing amplitude of the swing mechanism (3).

4. The welding electrode device according to claim 3, characterized in that: The limiting assembly (5) comprises a limiting member (51) arranged on the inner sides of the two ear plates (34), and a gap is provided between the limiting member (51) and the connecting rod (11).

5. The welding electrode device according to claim 2, characterized in that: It also includes an elastic reset component (6) for resetting the swing mechanism (3).

6. The welding electrode device according to claim 5, characterized in that: The elastic reset assembly (6) comprises an elastic member (61) arranged around the connecting rod (11), and the elastic member (61) is connected between the frame (1) and the ear plate (34).

7. The welding electrode device according to claim 1, characterized in that: The swing mechanism (3) comprises a mounting seat (31), the mounting seat (31) is provided with a receiving cavity (311), the frame (1) is provided with a connecting rod (11), the connecting rod (11) is provided with a ball head (12), the ball head (12) is arranged in the receiving cavity (311) so that the mounting seat (31) can swing relative to the connecting rod (11), the electrode assembly (2) is connected to the mounting seat (31), and the insulating member (4) is arranged between the electrode assembly (2) and the mounting seat (31).

8. The welding electrode device according to claim 7, characterized in that: The mounting seat (31) is provided with a limiting member (51) for limiting the swing amplitude of the mounting seat (31); the connecting rod (11) is inserted into the limiting member (51) and a gap is provided between the outer wall and the limiting member (51).

9. The welding electrode device according to claim 8, characterized in that: The connecting rod (11) is provided with elastic members (61) around its periphery, and the elastic members (61) are connected between the frame (1) and the limiting member (51).

10. The welding electrode device according to any one of claims 1 to 9, characterized in that: The electrode assembly (2) and the swing mechanism (3) are detachably connected via a fastener (7).

Images