Quick connecting device for secondary wire of electric welding machine

Abstract

The utility model discloses an electric welding machine secondary line rapid connection device, comprising an insulation housing in a cylindrical shape, a plurality of axial long grooves distributed on the inner circumference, a conductive strip comprising a wave segment and a grabhook segment, a conductive terminal in a cylindrical shape, and a conductive terminal arranged on the conductive terminal, the grabhook segment being exposed out of the insulation housing. One end of the conductive terminal is inserted between the wave sections, the other end of the conductive terminal is used for being connected with a conductive wire harness, and the adsorption part is arranged on the insulating shell and can drive the insulating shell to be close to the welding piece so as to compress the grabhook section to deform. According to the electric welding machine secondary line rapid connection device, the crown spring structure is formed in the insulation shell through the multiple conductive strips, detachable connection of the conductive terminals can be achieved through the crown spring structure, meanwhile, no extra electric conductor is needed for conducting, and when the insulation shell makes contact with a welding piece, the grabhook sections are stressed to extrude the wave sections to deform and extrude the conductive terminals; and the fastening force on the conductive terminal is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric welding machines, and more specifically relates to a secondary wire quick connection device for an electric welding machine. Background Art

[0002] Welding technology is widely used in all walks of life. The secondary wire is the output wire coil of the electric welding machine. When working, it needs to be connected to the weldment to form a current loop. The connection method between the secondary wire and the weldment is generally to wrap the secondary wire around the weldment to achieve connectivity between the two.

[0003] However, in actual on-site work, it is often the case that there is no space for secondary wires to be wound around the components that need to be welded (such as welding a 3m*6m open flat plate). In this case, the secondary wires can only be wound around adjacent equipment, which will cause the secondary wires to be too long and may also cause problems such as arc burns on the equipment.

[0004] In actual work, the secondary wires are often delayed, the connection is unstable, and the connection points of the secondary wiring are seriously rusted and oily, resulting in poor contact of the secondary wires, arc breaking, sparking, and even arc failure. In addition, the traditional secondary wire winding connection method has the disadvantages of slow speed and loose connection. When storing, the fixed base must be stored together with the wire harness, which interferes with each other and rubs, which is easy to wear and reduce the service life. Utility Model Content

[0005] The purpose of the utility model is to provide a secondary wire quick connection device for an electric welding machine in view of the deficiencies in the prior art, so as to solve the problems of the existing traditional secondary wire winding connection method, such as slow speed, loose wiring, and the need to store the fixed base together with the wire harness when storing, which causes mutual interference and friction, easy wear and reduces the service life.

[0006] In order to achieve the above object, the utility model provides a secondary wire quick connection device for an electric welding machine, comprising:

[0007] An insulating shell, wherein the insulating shell is cylindrical and has a plurality of axial long grooves distributed on the inner circumference;

[0008] 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 slot, and the claw section is exposed from the insulating housing;

[0009] A conductive terminal, wherein the conductive terminal is columnar, one end of the conductive terminal is inserted between each of the wave segments, and the other end of the conductive terminal is used to connect a conductive wire harness;

[0010] The adsorption portion is arranged on the insulating shell, and the adsorption portion can drive the insulating shell to approach the welding part and thus compress the claw section to deform.

[0011] Optionally, one end of the long groove away from the claw section is a closed section, and the force axis of the claw section is deformed to cause the wave section to deform radially.

[0012] Optionally, the wave section includes at least one protrusion away from the long groove, the protrusion is exposed from the long groove, and the outer periphery of the conductive terminal is connected to the protrusion without a gap.

[0013] Optionally, each of the gripper segments is radially spaced away from each other.

[0014] Optionally, a sharp claw portion is provided at one end of each of the claw segments away from the wave segment.

[0015] Optionally, the adsorption portion is a magnet, the magnet is ring-shaped, and the inner periphery of the magnet is connected to the outer periphery of the insulating shell.

[0016] Optionally, an end of the insulating shell close to the claw section is provided with an outwardly protruding ring portion, an end of the insulating shell away from the claw section is provided with a detachably connected retaining spring, and the magnet is arranged between the ring portion and the retaining spring.

[0017] Optionally, the conductive terminal is axially provided with a through hole or a blind hole.

[0018] Optionally, a plug post is further included, one end of which is plugged into the conductive terminal.

[0019] Optionally, a limiting portion is provided on the conductive terminal, and a clamping portion matching with the limiting portion is provided on the insulating shell.

[0020] The utility model provides a secondary wire quick connection device for an electric welding machine, and its beneficial effects are:

[0021] The electric welding machine secondary line quick connection device forms a crown spring structure in an insulating shell through multiple conductive strips. The crown spring structure can realize the detachable connection of the conductive terminal, and no additional conductor is required for conduction. When in use, the conductive terminal is inserted into the crown spring structure, and the conductive terminal is fixed by the deformation elastic force of the conductive strip. When the insulating shell contacts the welding part, the claw section is forced to squeeze the wave section to deform and squeeze the conductive terminal, thereby strengthening the fastening force of the conductive terminal and further ensuring the connection stability of the conductive terminal. After use, the claw section is reset and the conductive terminal can be pulled out to realize separate storage.

[0022] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 The schematic diagram of the structure of a quick connection device for secondary wires of an electric welding machine according to an embodiment of the utility model is shown.

[0025] Figure 2 A schematic structural diagram of an insulating housing of a secondary wire quick connection device for an electric welding machine according to an embodiment of the utility model is shown.

[0026] Figure 3 A schematic structural diagram of a conductive strip of a secondary wire quick connection device for an electric welding machine according to an embodiment of the utility model is shown.

[0027] Description of reference numerals:

[0028] 1. Insulating shell; 2. Conductive strip; 3. Conductive terminal; 4. Adsorption part; 5. Plug post. DETAILED DESCRIPTION

[0029] 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.

[0030] like Figure 1-3 As shown, a secondary wire quick connection device for an electric welding machine comprises:

[0031] The insulating shell 1 is cylindrical and has a plurality of axially long grooves distributed on the inner circumference;

[0032] A plurality of conductive bars 2, each conductive bar 2 comprising a wave section and a claw section, wherein the wave section is arranged in the long groove, and the claw section is exposed from the insulating housing 1;

[0033] The conductive terminal 3 is columnar, one end of the conductive terminal 3 is inserted between each wave segment, and the other end of the conductive terminal 3 is used to connect the conductive wire harness;

[0034] The adsorption portion 4 is arranged on the insulating shell 1, and the adsorption portion 4 can drive the insulating shell 1 to approach the welding part and thus compress the claw section to deform.

[0035] Specifically, multiple conductive strips 2 form a crown spring structure in the insulating shell 1, and the crown spring structure is used to realize the detachable connection of the conductive terminal 3. At the same time, no additional conductor is required for conduction. When in use, the conductive terminal 3 is inserted into the crown spring structure, and the conductive terminal 3 is fixed by the deformation elastic force of the conductive strip 2. When the insulating shell 1 contacts the welding part, the claw section is squeezed by the wave section to deform and squeeze the conductive terminal 3, thereby strengthening the fastening force of the conductive terminal 3 and further ensuring the connection stability of the conductive terminal 3. After use, the claw section is reset and the conductive terminal 3 can be pulled out to achieve separate storage.

[0036] Furthermore, the wave segment is used to clamp the conductive terminal 3 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, which saves an independent elastic mechanism compared to the existing fixed base of the secondary line.

[0037] In this embodiment, one end of the long groove away from the claw section is a closed section, and the force axis deformation of the claw section causes the wave section to deform radially.

[0038] Specifically, the deformation direction of the wave segment is guided and limited by the closed segment.

[0039] Furthermore, the conductive bar 2 includes a straight section, a wavy section and a gripping section which are connected in sequence. The straight section adapts to the setting of the closed section, which facilitates the plugging of the conductive bar 2 and the long slot.

[0040] In this embodiment, the wave section includes at least one protrusion away from the long slot, the protrusion is exposed outside the long slot, and the outer periphery of the conductive terminal 3 is connected to the protrusion without a gap.

[0041] Specifically, the raised portion of the wave segment is connected and fixed to the conductive terminal 3 .

[0042] In this embodiment, each gripper segment is radially spaced away from each other.

[0043] Specifically, the radial design is used to increase or decrease the gripping range to adapt to the complex surface conditions of the welded parts.

[0044] In this embodiment, a sharp claw portion is provided at one end of each claw segment away from the wave segment.

[0045] Specifically, the rust layer and stains on the surface of the weldment are broken through by the clamping claws.

[0046] In this embodiment, the adsorption part 4 is a magnet, which is in a ring shape, and the inner periphery of the magnet is connected to the outer periphery of the insulating shell 1 .

[0047] Specifically, the device is adsorbed on the surface of the weldment by a magnet.

[0048] In this embodiment, an outwardly protruding ring portion is provided at one end of the insulating housing 1 close to the claw section, a detachably connected retaining spring is provided at one end of the insulating housing 1 away from the claw section, and a magnet is provided between the ring portion and the retaining spring.

[0049] Specifically, the magnet is fixed by the retaining spring and the outwardly protruding ring portion.

[0050] In this embodiment, the conductive terminal 3 is axially provided with a through hole or a blind hole.

[0051] Specifically, the wiring harness or the plug post 5 is connected via a through hole or a blind hole.

[0052] In this embodiment, a plug post 5 is further included, one end of which is plugged into the conductive terminal 3 .

[0053] Specifically, the flexible wire is connected via the plug post 5 to avoid the flexible wire being difficult to plug in due to insufficient hardness.

[0054] In this embodiment, a limiting portion is provided on the conductive terminal 3 , and a clamping portion matching the limiting portion is provided on the insulating housing 1 .

[0055] Specifically, the insertion depth of the conductive terminal 3 is limited by the cooperation between the limiting portion and the clamping portion.

[0056] When a welding machine secondary wire quick connection device is used in this embodiment, taking assembly as an example, the insulating shell 1, the conductive strip 2, and the adsorption part 4 constitute a fixed base, and the conductive terminal 3 is connected to the conductive wire harness. The conductive terminal 3 can be inserted into the fixed base to realize simple on-site wiring.

[0057] The above description of various embodiments of the utility model is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A quick connection device for secondary wires of electric welding machines, characterized in that: include: An insulating shell, wherein the insulating shell is cylindrical 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 slot, and the claw section is exposed from the insulating housing; A conductive terminal, wherein the conductive terminal is columnar, one end of the conductive terminal is inserted between each of the wave segments, and the other end of the conductive terminal is used to connect a conductive wire harness; The adsorption portion is arranged on the insulating shell, and the adsorption portion can drive the insulating shell to approach the welding part and thus compress the claw section to deform.

2. The electric welding machine secondary wire quick connection device according to claim 1, characterized in that: One end of the long groove away from the claw section is a closed section, and the force axis of the claw section is deformed to cause the wave section to deform radially.

3. The electric welding machine secondary wire quick connection device according to claim 1, characterized in that: The wave section includes at least one protrusion away from the long slot, the protrusion is exposed outside the long slot, and the outer periphery of the conductive terminal is connected to the protrusion without a gap.

4. The electric welding machine secondary wire quick connection device according to claim 1, characterized in that: Each of the gripper segments is in a radial shape away from each other.

5. The electric welding machine secondary wire quick connection device according to claim 1, characterized in that: One end of each of the claw sections away from the wave section is provided with a sharp claw portion.

6. The electric welding machine secondary wire quick connection device according to claim 1, characterized in that: The adsorption part is a magnet, the magnet is ring-shaped, and the inner periphery of the magnet is connected to the outer periphery of the insulating shell.

7. The electric welding machine secondary wire quick connection device according to claim 6, characterized in that: An end of the insulating shell close to the claw section is provided with an outwardly protruding ring portion, an end of the insulating shell away from the claw section is provided with a detachably connected clamping spring, and the magnet is arranged between the ring portion and the clamping spring.

8. The electric welding machine secondary wire quick connection device according to claim 1, characterized in that: The conductive terminal is axially provided with a through hole or a blind hole.

9. The electric welding machine secondary wire quick connection device according to claim 8, characterized in that: It also includes a plug post, one end of which is plugged into the conductive terminal.

10. The electric welding machine secondary wire quick connection device according to claim 1, characterized in that: The conductive terminal is provided with a limiting portion, and the insulating shell is provided with a clamping portion matched with the limiting portion.

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