Secondary wire connecting device of vacuum adsorption type electric welding machine

Abstract

The utility model discloses a vacuum adsorption type electric welding machine secondary wire connecting device which comprises a connecting plate, a plurality of suction cups and a plurality of connecting rods, an electric welding connector is arranged in the middle of the connecting plate, the electric welding connector is used for conducting electricity, and the suction cups are circumferentially distributed on the side, close to a to-be-welded piece, of the connecting plate with the electric welding connector as the circle center and can attract the electric welding connector to be close to the to-be-welded piece. According to the vacuum adsorption type electric welding machine secondary wire connecting device, the electric welding connector and the suction cups are connected through the connecting plate, the electric welding connector is fixed to the surface of the to-be-welded part which cannot be magnetically attracted through the multiple suction cups according to the air pressure vacuum adsorption principle, use is easy and convenient, and the problem that a secondary wire of the to-be-welded part made of materials which cannot be magnetically attracted is difficult to fix is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric welding machines, and more specifically relates to a vacuum adsorption type electric welding machine secondary line connection device. Background Art

[0002] Welding technology is widely used in industrial manufacturing. The secondary wire in the electric welding machine is responsible for transmitting current to the weldment to form a current loop. Traditionally, the secondary wire is connected by winding it around the weldment, but this method has challenges: insufficient space for large or special structure weldments, resulting in excessively long secondary wires and safety hazards; unstable connections, susceptible to contamination leading to poor contact and failure; slow operation speeds and loose wiring. Although there are quick-connect devices on the market that rely on magnetic adsorption, they are not suitable for non-ferromagnetic materials (copper, some stainless steel), limiting the application scenarios.

[0003] Therefore, there is a need for a quick fixing connection device that can be used with welded parts that cannot be magnetically attracted. Utility Model Content

[0004] The utility model aims to provide a vacuum adsorption type electric welding machine secondary wire connection device to solve the problem of difficulty in fixing the secondary wire of the welded parts made of materials that cannot be magnetically attracted.

[0005] In order to achieve the above object, the utility model provides a vacuum adsorption type electric welding machine secondary line connection device, comprising:

[0006] A connecting plate, wherein a spot welding joint is provided in the middle of the connecting plate, and the spot welding joint is used for conducting electricity;

[0007] A plurality of suction cups are distributed on a side of the connecting plate close to the workpiece to be welded, with the electric welding joint as the center, and can attract the electric welding joint to be close to the workpiece to be welded.

[0008] Optionally, the suction cup comprises:

[0009] A connecting seat, the connecting seat is connected to the connecting plate;

[0010] At least one deformation portion, the deformation portion is capsule-shaped and coaxially connected to the connection seat;

[0011] The adsorption portion is in a trumpet shape and is coaxially connected to an end of the deformation portion away from the connecting seat.

[0012] Optionally, the connection seat is provided with a stud, and the connection plate is provided with a screw hole matching the stud.

[0013] Optionally, an anti-discharge gap is provided between the suction cup and the electric welding joint.

[0014] Optionally, the electric welding joint comprises:

[0015] An insulating tube, which is passed through the center of the connecting plate and has a plurality of axial long grooves distributed on the inner circumference;

[0016] A plurality of conductive strips, each conductive strip comprising a wave section and a claw section, wherein the wave section is arranged in the long groove, and the claw section is exposed at one end of the insulating tube close to the workpiece to be welded;

[0017] The conductive terminal is columnar, one end of which is inserted between the wave segments, and the other end of which is used to connect the conductive wire harness.

[0018] Optionally, the insulating tube includes a coaxially arranged thick end and a thin end, the thin end passes through the connecting plate to be exposed, and a retaining spring is arranged on the outer periphery of the thin end, and the connecting plate is located between the retaining spring and the thick end.

[0019] Optionally, the wave segment includes at least one protrusion away from the long groove, the protrusion is exposed from the long groove, the outer periphery of the conductive terminal is connected to the protrusion without a gap, and when the wave segment deforms radially, the claw segment is subjected to axial deformation.

[0020] Optionally, a limiting portion is provided on the conductive terminal, and a clamping portion cooperating with the limiting portion is provided on the insulating cylinder.

[0021] Optionally, there are at least three suction cups distributed around the circumference.

[0022] Optionally, the connecting plate is disc-shaped or radial-shaped.

[0023] The utility model provides a vacuum adsorption type electric welding machine secondary line connection device, which has the following beneficial effects:

[0024] The vacuum adsorption type electric welding machine secondary wire connection device connects the electric welding joint and the suction cup through a connecting plate, and uses a plurality of suction cups to fix the electric welding joint on the surface of the workpiece to be welded that cannot be magnetically attracted by the principle of air pressure vacuum adsorption. The device is simple and convenient to use, and effectively solves the problem of difficulty in fixing the secondary wire of the workpiece to be welded made of materials that cannot be magnetically attracted.

[0025] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0027] Figure 1 The schematic structural diagram of a secondary wire connection device for a vacuum adsorption welding machine according to an embodiment of the utility model is shown.

[0028] Description of reference numerals:

[0029] 1. Connecting plate; 2. Suction cup; 3. Insulating tube; 4. Conductive strip; 5. Conductive terminal. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0031] like Figure 1 As shown, a vacuum adsorption type electric welding machine secondary line connection device comprises:

[0032] A connecting plate 1, wherein an electric welding joint is arranged in the middle of the connecting plate 1, and the spot welding joint is used for conducting electricity;

[0033] A plurality of suction cups 2 are distributed on a side of the connecting plate 1 close to the workpiece to be welded, with the electric welding joint as the center, and can attract the electric welding joint to be close to the workpiece to be welded.

[0034] Specifically, the connecting plate 1 is used to connect the electric welding joint and the suction cup 2. The electric welding joint is fixed on the surface of the workpiece to be welded which cannot be magnetically attracted by the multiple suction cups 2 using the air pressure vacuum adsorption principle. The use is simple and convenient.

[0035] Furthermore, due to vacuum adsorption, the connecting plate 1 can be used as a special shape or arc shape to adapt to curved surfaces or spliced ​​products (combined spliced ​​products such as steel plates and ceramic plates). At the same time, the adsorption of the suction cup 2 causes little loss to the product surface, which is beneficial to ensure a smooth appearance of the product.

[0036] In this embodiment, the suction cup 2 comprises:

[0037] A connecting seat connected to the connecting plate 1;

[0038] At least one deformation part, the deformation part is capsule-shaped and coaxially connected to the connection seat;

[0039] The adsorption part is in a trumpet shape and is coaxially connected to an end of the deformation part away from the connection seat.

[0040] Specifically, the vacuum suction is mainly provided by compressing the deformation part, and the deformation part can provide a certain axial and radial buffer, so as to facilitate the fine adjustment of the position angle of the welding joint after fixing.

[0041] Furthermore, the deformation portion is butterfly-shaped or oblate spherical.

[0042] In this embodiment, the connection seat is provided with studs, and the connection plate 1 is provided with screw holes matching with the studs.

[0043] Specifically, the suction cup 2 is detachably connected through the studs and screw holes, which is convenient for maintenance and replacement and replacement of the suction cup 2 with different suction forces according to the current load.

[0044] In this embodiment, an anti-discharge gap is provided between the suction cup 2 and the electric welding joint.

[0045] Specifically, the anti-discharge gap is used to prevent arc discharge from damaging the suction cup 2 .

[0046] In this embodiment, the electric welding joint includes:

[0047] The insulating tube 3 is passed through the center of the connecting plate 1 and has a plurality of axial long grooves distributed on the inner circumference;

[0048] A plurality of conductive bars 4, the conductive bars 4 comprising a wave section and a claw section, the wave section being arranged in the long groove, and the claw section being exposed at one end of the insulating tube 3 close to the workpiece to be welded;

[0049] The conductive terminal 5 is columnar, one end of the conductive terminal 5 is inserted between each wave segment, and the other end of the conductive terminal 5 is used to connect the conductive wire harness.

[0050] Specifically, multiple conductive strips 4 form a crown spring structure in the insulating tube 3, and the crown spring structure is used to realize the detachable connection of the conductive terminal 5. At the same time, no additional conductor is required for conduction. When in use, the conductive terminal 5 is inserted into the crown spring structure, and the conductive terminal 5 is fixed by the deformation elastic force of the conductive strip 4. When the insulating tube 3 contacts the welding part, the claw section is squeezed by the wave section to deform and squeeze the conductive terminal 5, thereby strengthening the fastening force of the conductive terminal 5 and further ensuring the connection stability of the conductive terminal 5. After use, the claw section is reset and the conductive terminal 5 can be pulled out to realize separate storage.

[0051] Furthermore, the elastic deformation of the conductive strip 4 adapts to the compression and adsorption of the suction cup 2, thereby preventing the electric welding head from making hard contact with the workpiece to be welded, thereby preventing the suction cup 2 from compressing and exhausting.

[0052] Furthermore, if the welding joint and the workpiece are in hard contact and the suction cup 2 is prevented from continuing to compress, the suction cup 2 can be used to manually compress and exhaust the air in sequence by utilizing its elastic deformation. (Radial auxiliary extrusion exhaust)

[0053] In this embodiment, the insulating tube 3 includes a coaxially arranged thick end and a thin end, the thin end passes through the connecting plate 1 and is exposed, and a retaining spring is arranged on the outer periphery of the thin end, and the connecting plate 1 is located between the retaining spring and the thick end.

[0054] Specifically, the static insulating tube 3 is fixed on the connecting plate 1 through the retaining spring and the thick end.

[0055] Furthermore, the inner diameters of the thick end and the thin end are the same.

[0056] In this embodiment, the wave segment includes at least one protrusion away from the long groove, the protrusion is exposed outside the long groove, the outer periphery of the conductive terminal 5 is connected to the protrusion without a gap, and when the wave segment deforms radially, the claw segment is subjected to axial deformation.

[0057] Specifically, the wave segment is used to clamp the conductive terminal 53 to achieve a detachable connection, the claw segment is used for arc contact discharge, and the wave segment is axially compressed when the claw segment is compressed and deformed, and the crown spring structure is used to achieve elastic locking and elastic extrusion, and cooperate with the suction cup 2 to provide a preload.

[0058] In this embodiment, a limiting portion is provided on the conductive terminal 5 , and a clamping portion matching the limiting portion is provided on the insulating cylinder 3 .

[0059] Specifically, the insertion depth of the conductive terminal 5 is limited by the cooperation between the limiting portion and the clamping portion.

[0060] In this embodiment, there are at least three suction cups 2 distributed around the circumference.

[0061] Specifically, three suction cups 2 are used to avoid lateral deflection that would occur with two suction cups 2 .

[0062] In this embodiment, the connecting plate 1 is disc-shaped or radially shaped.

[0063] Specifically, the disc-shaped connection is stable, and the radial holding is strong, and the design can be selected according to needs.

[0064] When a vacuum adsorption type electric welding machine secondary line connection device is used in this embodiment, a stainless steel plate is used as an example, the electric welding joint and the suction cup 2 are assembled to the connecting plate 1, and the electric welding joint is adsorbed on the surface of the workpiece to be welded by the suction cup 2. The adsorption process is as follows:

[0065] Compress the suction cup 2 to make the gripper section contact with the workpiece to be welded, and it is appropriate to keep the gripper section slightly deformed and in contact with the workpiece to be welded after the suction cup 2 is released;

[0066] The conductive terminal 5 is inserted into the insulating tube 3 so that the current can flow through the conductive terminal 5 and the conductive strip 4 to the workpiece to be welded.

[0067] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A vacuum adsorption type welding machine secondary line connection device, characterized in that: include: A connecting plate, wherein a welding joint is provided in the middle of the connecting plate, and the welding joint is used for conducting electricity; A plurality of suction cups are distributed on a side of the connecting plate close to the workpiece to be welded, with the electric welding joint as the center, and can attract the electric welding joint to be close to the workpiece to be welded.

2. The vacuum adsorption welding machine secondary line connection device according to claim 1, characterized in that: The suction cup comprises: A connecting seat, the connecting seat is connected to the connecting plate; At least one deformation portion, the deformation portion is capsule-shaped and coaxially connected to the connection seat; The adsorption portion is in a trumpet shape and is coaxially connected to an end of the deformation portion away from the connecting seat.

3. The vacuum adsorption welding machine secondary line connection device according to claim 2, characterized in that: The connection seat is provided with a stud, and the connection plate is provided with a screw hole matching with the stud.

4. The vacuum adsorption welding machine secondary line connection device according to claim 1, characterized in that: An anti-discharge gap is arranged between the suction cup and the electric welding joint.

5. The vacuum adsorption welding machine secondary line connection device according to claim 1, characterized in that: The electric welding joint comprises: An insulating tube, which is passed through the center of the connecting plate and has a plurality of axial long grooves distributed on the inner circumference; A plurality of conductive strips, each conductive strip comprising a wave section and a claw section, wherein the wave section is arranged in the long groove, and the claw section is exposed at one end of the insulating tube close to the workpiece to be welded; The conductive terminal is columnar, one end of which is inserted between the wave segments, and the other end of which is used to connect the conductive wire harness.

6. The vacuum adsorption welding machine secondary wire connection device according to claim 5, characterized in that: The insulating cylinder comprises a coaxially arranged thick end and a thin end, the thin end passes through the connecting plate and is exposed, and a clamping spring is arranged on the outer periphery of the thin end, and the connecting plate is located between the clamping spring and the thick end.

7. The vacuum adsorption welding machine secondary line connection device according to claim 5, characterized in that: The wave section includes at least one protrusion away from the long groove, the protrusion is exposed from the long groove, the outer periphery of the conductive terminal is connected to the protrusion without a gap, and when the wave section is radially deformed, the claw section is subjected to axial deformation.

8. The secondary wire connection device of the vacuum adsorption welding machine according to claim 5, characterized in that: The conductive terminal is provided with a limiting portion, and the insulating cylinder is provided with a clamping portion matched with the limiting portion.

9. The vacuum adsorption type welding machine secondary line connection device according to claim 1, characterized in that: There are at least three suction cups distributed around the circumference.

10. The vacuum adsorption type welding machine secondary line connection device according to claim 1, characterized in that: The connecting plate is disc-shaped or radial-shaped.

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