Melt single-face double-spot welding device

Abstract

The invention discloses a melt single-face double-spot welding device, and relates to the field of welding, the melt single-face double-spot welding device comprises a base, a power supply controller, a vertical linear telescopic driving part and a double-electrode mechanism, the double-electrode mechanism comprises a mounting seat, a mounting assembly, a first electrode and a second electrode, the vertical linear telescopic driving part is arranged on the base, and the first electrode is arranged on the mounting seat; the first electrode is installed at the rear end of the installation base through an installation assembly, the first electrode is vertically arranged, the installation assembly and the installation base are arranged in an insulated mode, the second electrode is installed at the front end of the installation base, and the second electrode is obliquely arranged towards the end close to the first electrode from top to bottom. And the first electrode and the second electrode are connected with the power supply controller. According to the melt single-face double-spot welding device, the problem that spot welding cannot be carried out when a conductive face cannot be located on the two sides or a contact face on one side is small due to limitation of the shape of a workpiece is solved, and the phenomenon that an electroplated layer on the surface of a contact knife is damaged due to arc discharge caused by poor spot welding contact of a tool is reduced.

Description

Technical Field

[0001] The invention relates to the field of welding, in particular to a melt single-sided double-spot welding device. Background Art

[0002] In existing melt spot welding equipment, electrodes apply and maintain a certain pressure on the melt and the contact blade during spot welding. The spot welding power supply then outputs current through the contact surface between the melt and the contact blade, melting the local area to form a weld spot and achieving reliable spot welding. The two electrodes are typically positioned in a vertical position. During spot welding, the conductive surface of the contact portion with the electrodes is as perpendicular to the electrode's working direction as possible and should be a large flat surface. If the conductive surface of the product being spot welded cannot be perpendicular to the electrode due to process limitations or the contact surface is small, spot welding may be impossible. Alternatively, the spot welding tooling may be difficult to design, and poor contact with the tooling may cause arc damage to the electroplating layer on the contact blade surface, potentially preventing spot welding or causing the arc to burn the non-spot welding surface of the product. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a melt single-sided double spot welding device, which solves the problem that spot welding cannot be performed when the conductive surface cannot be located on both sides or the contact surface on one side is small due to workpiece shape limitations, and reduces the phenomenon of arcing caused by poor contact of the tooling spot welding causing damage to the electroplating layer on the contact knife surface.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a melt single-sided double-spot welding device, comprising a base, a power controller, a vertical linear telescopic drive component and a dual-electrode mechanism, wherein the dual-electrode mechanism comprises a mounting base, a mounting assembly, a first electrode and a second electrode, the vertical linear telescopic drive component being arranged on the base and capable of driving the mounting base to reciprocate in a vertical direction, the first electrode being mounted on the rear end of the mounting base through the mounting assembly, and the first electrode being vertically arranged, the mounting assembly being insulated from the mounting base, the second electrode being mounted on the front end of the mounting base, and the second electrode being inclined from top to bottom toward an end close to the first electrode, and the first electrode and the second electrode being both connected to the power controller.

[0006] Preferably, the mounting base is made of conductive material, and the mounting base includes a top plate, a side plate, a bottom plate and a front end plate. The top plate and the bottom plate are respectively arranged at the upper and lower ends of the front part of the side plate, the front end plate is arranged at the front end of the bottom plate, the second electrode is installed on the front end plate, and the mounting assembly is arranged on the top plate and the bottom plate.

[0007] Preferably, the mounting assembly includes an insulating partition, an upper insulating limit block, a lower insulating limit block, an elastic component and a conductive clamping component, the insulating partition is fitted with the side plate and is located between the top plate and the bottom plate, the top plate is provided with a mounting opening on the side away from the side plate, the upper insulating limit block is fixed in the mounting opening, the bottom plate is provided with a mounting hole, the lower insulating limit block is fixed in the mounting hole, the upper insulating limit block is provided with an upper guide hole passing through the upper and lower ends, the lower insulating limit block is provided with a lower guide hole passing through the upper and lower ends, the first electrode is slidably installed in the upper guide hole and the lower guide hole, the conductive clamping component is fixedly sleeved on the first electrode and is located above the lower insulating limit block, the insulating partition is located between the conductive clamping component and the side plate, the elastic component is sleeved on the first electrode and is located between the upper insulating limit block and the conductive clamping component.

[0008] Preferably, the conductive clamping component includes a first fixing component and two symmetrically arranged first conductive clamping blocks, each of the first conductive clamping blocks is provided with a first clamping groove on one side close to the other conductive clamping block, the two first conductive clamping blocks are fixedly connected by the first fixing component, so that the two first clamping grooves can clamp and fix the first electrode, and a first conductive wire is clamped between the two first conductive clamping blocks, and the first conductive wire is connected to the power controller.

[0009] Preferably, the upper insulating limit block includes a first block and a first limit plate arranged at the lower part of the first block, the upper guide hole passes through the first block and the first limit plate, the first block is fixed in the mounting port, and the first limit plate is located below the mounting port and fixed to the lower part of the top plate.

[0010] Preferably, the lower insulating limit block includes a second block and a second limit plate arranged on the upper part of the second block, the lower guide hole passes through the second block and the second limit plate, the second block is fixed in the mounting hole, and the second limit plate is located above the mounting hole and fixed to the upper part of the base plate.

[0011] Preferably, upper and lower ends of the insulating partition are respectively provided with an upper card interface and a lower card interface, the upper card interface is used to be clamped to the two sides of the top plate, and the lower card interface is used to be clamped to the two sides of the bottom plate.

[0012] Preferably, the mounting seat also includes a second conductive clamp and a second fixing assembly, the second conductive clamp is arranged on one side of the front end plate, and a second clamping groove is provided on the side of the second conductive clamp close to the front end plate and the side of the front end plate close to the second conductive clamp, the second conductive clamp and the front end plate are fixedly connected by the second fixing assembly, so that the two second clamping grooves can clamp and fix the second electrode, and the mounting seat is connected to the power supply controller.

[0013] Preferably, the base includes a base and a vertical seat arranged on the upper part of one side of the base, a sliding column is provided at the rear end of the side plate, a vertical slide groove is provided on the vertical seat, the sliding column is slidably installed in the vertical slide groove, and the vertical linear telescopic drive component is connected to the bottom plate.

[0014] Preferably, the base further includes a support platform, which is arranged on the upper part of the other side of the base and is used to support the workpiece.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The melt single-sided double-spot welding device of the present invention includes a base, a power controller, a vertical linear telescopic drive component and a dual-electrode mechanism, the dual-electrode mechanism includes a mounting seat, a mounting assembly, a first electrode and a second electrode, the first electrode is mounted on the rear end of the mounting seat by the mounting assembly, and the first electrode is vertically arranged, the mounting assembly and the mounting seat are insulated, the second electrode is mounted on the front end of the mounting seat, and the second electrode is tilted from top to bottom toward an end close to the first electrode. During operation, the workpiece is placed on the base, the melt is placed on the upper part of the workpiece, the vertical linear telescopic drive component drives the mounting seat to move downward in the vertical direction, the first electrode and the second electrode are both in contact with the upper part of the melt, the power controller supplies power to the first electrode and the second electrode, so that the current passes through the first electrode, the melt and the second electrode to form a loop, the melt is melted after the current passes through the position pressed by the first electrode and the second electrode, so that the melt melts and connects with the workpiece, so that the melt and the workpiece are connected by spot welding. By moving the opposing electrodes to one side and the conductive positions to the same plane, the present invention eliminates the need for conductive contact on the other side, optimizing the spot welding position and resolving the issue of spot welding when the workpiece shape restricts the conductive surface from being located on both sides or when the contact surface on one side is small. Furthermore, this single-sided, double-spot welding device eliminates the need for traditional spot welding electrodes to be positioned at the bottom, providing more space to simplify fixture design and reducing damage to the electroplated coating on the contact blade surface caused by arcing due to poor contact in the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of the melt single-sided double-spot welding device provided by the present invention;

[0019] Figure 2 This is an exploded view of the double-electrode mechanism in the melt single-sided double-spot welding device provided by the present invention.

[0020] Explanation of the accompanying drawings: 100, melt single-sided double-spot welding device; 1, base; 2, vertical seat; 3, mounting seat; 31, top plate; 32, side plate; 33, bottom plate; 34, front end plate; 35, mounting port; 36, mounting hole; 37, second conductive clamping block; 38, second clamping groove; 39, second through hole; 310, second threaded hole; 311, sliding column; 4, insulating partition; 5, upper insulating limit block; 51, first block; 52, first limit plate; 6, lower insulating limit block; 61, second block; 62, second limit plate; 7, first conductive clamping block; 8, first clamping groove; 9, first through hole; 10, first threaded hole; 11, elastic component; 12, first electrode; 13, second electrode; 14, first conductive wire; 15, support platform; 16, workpiece. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The purpose of the present invention is to provide a melt single-sided double spot welding device, which solves the problem that spot welding cannot be performed when the conductive surface cannot be located on both sides or the contact surface on one side is small due to workpiece shape limitations, and reduces the phenomenon of arcing caused by poor contact of tooling spot welding causing damage to the electroplating layer on the contact knife surface.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-Figure 2As shown, the present embodiment provides a melt single-sided double-spot welding device 100, including a base, a power controller, a vertical linear telescopic drive component and a dual-electrode mechanism, the dual-electrode mechanism including a mounting base 3, a mounting assembly, a first electrode 12 and a second electrode 13, the vertical linear telescopic drive component is arranged on the base, and can drive the mounting base 3 to reciprocate in the vertical direction, the first electrode 12 is mounted on the rear end of the mounting base 3 through the mounting assembly, and the first electrode 12 is vertically arranged, the mounting assembly is insulated from the mounting base 3, the second electrode 13 is mounted on the front end of the mounting base 3, the second electrode 13 is tilted from top to bottom toward the end close to the first electrode 12, and the first electrode 12 and the second electrode 13 are both connected to the power controller. In this embodiment, the first electrode 12 is connected to the negative output terminal of the power controller, and the second electrode 13 is connected to the positive output terminal of the power controller.

[0025] During operation, the workpiece 16 is placed on the base, and the melt is placed on the upper part of the workpiece 16. The vertical linear telescopic drive component drives the mounting base 3 to move downward in the vertical direction. The first electrode 12 and the second electrode 13 are both in contact with the upper part of the melt. The power controller supplies power to the first electrode 12 and the second electrode 13, so that the current forms a circuit through the first electrode 12, the melt and the second electrode 13. The melt is pressed into position by the first electrode 12 and the second electrode 13 and melted after the current passes through it, so that the melt melts and connects to the workpiece 16, so that the melt and the workpiece 16 are connected by spot welding.

[0026] This embodiment optimizes the spot welding position by moving the opposing electrodes to a single side and the conductive positions to the same plane, eliminating the need for conductive contact on the other side. This solves the problem of spot welding being impossible due to workpiece shape limitations, such as the inability to locate conductive surfaces on both sides or a small contact surface on one side. Furthermore, the single-sided, double-spot welding device 100 eliminates the need for traditional spot welding electrodes to be positioned at the bottom, providing ample space for simplified fixture design. This reduces the risk of arc damage to the electroplated layer on the contact blade surface caused by poor contact with the fixture.

[0027] Specifically, the mounting base 3 is made of conductive material, and the mounting base 3 includes a top plate 31, a side plate 32, a bottom plate 33 and a front end plate 34. The top plate 31 and the bottom plate 33 are respectively arranged at the upper and lower ends of the front of the side plate 32, and the front end plate 34 is arranged at the front end of the bottom plate 33. The second electrode 13 is installed on the front end plate 34, and the mounting assembly is arranged on the top plate 31 and the bottom plate 33.

[0028] The mounting assembly includes an insulating spacer 4, an upper insulating limit block 5, a lower insulating limit block 6, an elastic component 11 and a conductive clamping component. The insulating spacer 4 is fitted with the side plate 32 and is located between the top plate 31 and the bottom plate 33. A mounting opening 35 is provided on the side of the top plate 31 away from the side plate 32. The upper insulating limit block 5 is fixed in the mounting opening 35. A mounting hole 36 is provided on the bottom plate 33. The lower insulating limit block 6 is fixed in the mounting hole 36. The upper insulating limit block 5 is provided with an upper guide hole running through the upper and lower ends. The lower insulating limit block 6 is provided with a guide hole running through the upper and lower ends. A lower guide hole is provided running through the upper and lower ends, and the first electrode 12 is slidably installed in the upper guide hole and the lower guide hole. The conductive clamping component is fixedly sleeved on the first electrode 12 and is located above the lower insulating limit block 6, that is, the lower insulating limit block 6 separates the conductive clamping component from the bottom plate 33, and the insulating partition 4 is located between the conductive clamping component and the side plate 32, that is, the insulating partition 4 separates the conductive clamping component from the side plate 32. The elastic component 11 is sleeved on the first electrode 12 and is located between the upper insulating limit block 5 and the conductive clamping component.

[0029] Specifically, the upper and lower ends of the elastic component 11 respectively abut against the lower portion of the upper insulating limit block 5 and the upper portion of the conductive clamping component. The elastic component 11 in this embodiment is a buffer spring.

[0030] When the dual-electrode mechanism is in its initial state, that is, not in contact with the melt, the bottom end of the first electrode 12 is lower than the bottom end of the second electrode 13. When the vertical linear telescopic drive component drives the dual-electrode mechanism downward, so that both the first electrode 12 and the second electrode 13 are in contact with the melt, the elastic component 11 compresses. During this process, the elastic component 11 acts as a pressure buffer to balance the electrode pressure.

[0031] The conductive clamping component includes a first fixing assembly and two symmetrically arranged first conductive clamping blocks 7. Each first conductive clamping block 7 is provided with a first clamping groove 8 on one side adjacent to the other. The two first conductive clamping blocks 7 are fixedly connected by the first fixing assembly, so that the two first clamping grooves 8 can clamp and secure the first electrode 12. A first conductive wire 14 is clamped between the two first conductive clamping blocks 7 and is connected to the power controller. In this embodiment, the first conductive wire 14 is connected to the negative output terminal of the power controller.

[0032] In this embodiment, the first clamping grooves 8 are all first semicircular grooves that match the structure of the first electrode 12. The first fixing assembly includes two first fixing bolts. One first conductive clamping block 7 is provided with two first through holes 9 located on either side of the first clamping groove 8, and the other first conductive clamping block 7 is provided with first threaded holes 10 corresponding one-to-one with the first through holes 9. Each first fixing bolt passes through one first through hole 9 and is installed in one first threaded hole 10. The head of the first fixing bolt abuts against the outer wall of one first conductive clamping block 7 to achieve the fixation of the two first conductive clamping blocks 7 and the clamping and fixing of the first electrode 12.

[0033] The upper insulating limit block 5 includes a first block 51 and a first limit plate 52 arranged at the lower part of the first block 51. The upper guide hole passes through the first block 51 and the first limit plate 52. The first block 51 is fixed in the mounting opening 35. The first limit plate 52 is located below the mounting opening 35 and is fixed to the lower part of the top plate 31.

[0034] Specifically, the upper end of the elastic component 11 abuts against the lower portion of the first limiting plate 52 , and the lower end of the elastic component 11 abuts against the upper portions of the two first conductive clamping blocks 7 .

[0035] The lower insulating stopper 6 includes a second block 61 and a second stopper plate 62 disposed above the second block 61. A lower guide hole passes through the second block 61 and the second stopper plate 62. The second block 61 is fixed in the mounting hole 36. The second stopper plate 62 is located above the mounting hole 36 and fixed to the upper portion of the bottom plate 33. Two first conductive clamps 7 are located above the first stopper plate 52.

[0036] The upper and lower ends of the insulating partition 4 are respectively provided with an upper card interface and a lower card interface. The upper card interface is used to be clamped to the two sides of the top plate 31, and the lower card interface is used to be clamped to the two sides of the bottom plate 33, so that the insulating partition 4 can be stably installed on the top plate 31 and the bottom plate 33, and fit with the side plate 32.

[0037] The mounting base 3 also includes a second conductive clamp 37 and a second fixing assembly. The second conductive clamp 37 is disposed on one side of the front end plate 34. Second clamping grooves 38 are provided on both the side of the second conductive clamp 37 proximal to the front end plate 34 and the side of the front end plate 34 proximal to the second conductive clamp 37. The second conductive clamp 37 and the front end plate 34 are fixedly connected via the second fixing assembly, such that the two second clamping grooves 38 can clamp and secure the second electrode 13. The mounting base 3 is connected to the power controller. In this embodiment, the mounting base 3 is connected to the positive output terminal of the power controller.

[0038] In this embodiment, the second clamping grooves 38 are all second semicircular grooves that match the structure of the second electrode 13. The second fixing assembly includes two second fixing bolts. The second conductive clamping block 37 is provided with two second through holes 39, respectively located on either side of the second clamping groove 38. The front end plate 34 is provided with second threaded holes 310 that correspond one-to-one with the second through holes 39. Each second fixing bolt passes through a second through hole 39 and is installed in a second threaded hole 310. The head of the second fixing bolt abuts against the outer wall of the second conductive clamping block 37 to secure the second conductive clamping block 37 to the front end plate 34 and to clamp and secure the second electrode 13.

[0039] In this embodiment, the angle between the second electrode 13 and the first electrode 12 is 45°. Under the premise of ensuring that the second electrode 13 and the first electrode 12 do not contact each other, the bottom ends of the second electrode 13 and the first electrode 12 are as close as possible to improve the quality of the solder joint.

[0040] The base includes a base 1 and a vertical seat 2 arranged on the upper part of one side of the base 1. A sliding column 311 is provided at the rear end of the side plate 32, and a vertical slide groove is provided on the vertical seat 2. The sliding column 311 is slidably installed in the vertical slide groove. The vertical linear telescopic drive component is connected to the bottom plate 33, which can drive the entire mounting seat 3 and the first electrode 12 and the second electrode 13 to perform vertical movement.

[0041] In this specific embodiment, the vertical linear telescopic driving component is a cylinder.

[0042] The base in this embodiment further includes a support platform 15 , which is disposed on the upper portion of the other side of the base 1 . The support platform 15 is used to support a workpiece 16 .

[0043] The specific usage process is: place the workpiece 16 on the support table 15, place the melt on the upper part of the workpiece 16, and the vertical linear telescopic drive component drives the mounting seat 3 to move downward in the vertical direction. The first electrode 12 and the second electrode 13 are both in contact with the upper part of the melt. The negative output end of the power controller supplies power to the first conductive clamp 7 through the first conductive wire 14, and the positive output end of the power controller supplies power to the mounting seat 3, so that the current passes through the positive pole of the power supply-mounting seat 3-second electrode 13-melt-first electrode 12-first conductive clamp 7-first conductive wire 14-negative pole of the power supply to form a loop. The melt is pressed by the first electrode 12 and the second electrode 13 and melted after the current passes through, so that the melt melts and connects with the workpiece 16, so that the melt and the workpiece 16 are connected by spot welding.

[0044] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A melt single-sided double-spot welding device, characterized in that: It includes a base, a power controller, a vertical linear telescopic drive component and a dual-electrode mechanism, wherein the dual-electrode mechanism includes a mounting seat, a mounting assembly, a first electrode and a second electrode. The vertical linear telescopic drive component is arranged on the base and can drive the mounting seat to reciprocate in the vertical direction. The first electrode is installed at the rear end of the mounting seat through the mounting assembly, and the first electrode is vertically arranged. The mounting assembly is insulated from the mounting seat. The second electrode is installed at the front end of the mounting seat, and the second electrode is inclined from top to bottom toward the end close to the first electrode. The first electrode and the second electrode are both connected to the power controller.

2. The melt single-sided double-spot welding device according to claim 1, characterized in that: The mounting base is made of conductive material and includes a top plate, a side plate, a bottom plate and a front end plate. The top plate and the bottom plate are respectively arranged at the upper and lower ends of the front of the side plate, the front end plate is arranged at the front end of the bottom plate, the second electrode is installed on the front end plate, and the mounting assembly is arranged on the top plate and the bottom plate.

3. The melt single-sided double-spot welding device according to claim 2, characterized in that: The mounting assembly includes an insulating spacer, an upper insulating limit block, a lower insulating limit block, an elastic component and a conductive clamping component, the insulating spacer is fitted with the side plate and is located between the top plate and the bottom plate, the top plate is provided with a mounting opening on a side away from the side plate, the upper insulating limit block is fixed in the mounting opening, the bottom plate is provided with a mounting hole, the lower insulating limit block is fixed in the mounting hole, the upper insulating limit block is provided with an upper guide hole passing through the upper and lower ends, the lower insulating limit block is provided with a lower guide hole passing through the upper and lower ends, the first electrode is slidably mounted in the upper guide hole and the lower guide hole, the conductive clamping component is fixedly sleeved on the first electrode and is located above the lower insulating limit block, the insulating spacer is located between the conductive clamping component and the side plate, the elastic component is sleeved on the first electrode and is located between the upper insulating limit block and the conductive clamping component.

4. The melt single-sided double-spot welding device according to claim 3, characterized in that: The conductive clamping component includes a first fixing component and two symmetrically arranged first conductive clamping blocks, each of the first conductive clamping blocks is provided with a first clamping groove on one side close to the other conductive clamping block, the two first conductive clamping blocks are fixedly connected by the first fixing component, so that the two first clamping grooves can clamp and fix the first electrode, and a first conductive wire is clamped between the two first conductive clamping blocks, and the first conductive wire is connected to the power controller.

5. The melt single-sided double-spot welding device according to claim 3, characterized in that: The upper insulating limit block includes a first block and a first limit plate arranged at the lower part of the first block, the upper guide hole passes through the first block and the first limit plate, the first block is fixed in the mounting opening, and the first limit plate is located below the mounting opening and fixed to the lower part of the top plate.

6. The melt single-sided double-spot welding device according to claim 3, characterized in that: The lower insulating limit block includes a second block and a second limit plate arranged on the upper part of the second block, the lower guide hole passes through the second block and the second limit plate, the second block is fixed in the mounting hole, and the second limit plate is located above the mounting hole and fixed to the upper part of the base plate.

7. The melt single-sided double-spot welding device according to claim 3, characterized in that: An upper card interface and a lower card interface are respectively provided at the upper and lower ends of the insulating partition. The upper card interface is used to be clamped to the two sides of the top plate, and the lower card interface is used to be clamped to the two sides of the bottom plate.

8. The melt single-sided double-spot welding device according to claim 3, characterized in that: The mounting seat also includes a second conductive clamp block and a second fixing component, the second conductive clamp block is arranged on one side of the front end plate, and a second clamping groove is provided on the side of the second conductive clamp block close to the front end plate and the side of the front end plate close to the second conductive clamp block. The second conductive clamp block and the front end plate are fixedly connected by the second fixing component, so that the two second clamping grooves can clamp and fix the second electrode, and the mounting seat is connected to the power controller.

9. The melt single-sided double-spot welding device according to claim 3, characterized in that: The base includes a base and a vertical seat arranged on the upper part of one side of the base. A sliding column is provided at the rear end of the side plate, and a vertical slide groove is provided on the vertical seat. The sliding column is slidably installed in the vertical slide groove, and the vertical linear telescopic drive component is connected to the bottom plate.

10. The melt single-sided double-spot welding device according to claim 9, characterized in that: The base further includes a support platform, which is arranged on the upper part of the other side of the base and is used to support a workpiece.

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