Automatic welding machine for cable bridge

Abstract

The invention discloses an automatic welding machine for a cable bridge. The automatic welding machine comprises a conveying frame, welding equipment and a transferring mechanism. A moving mechanism, a welding mechanism and a discharging mechanism are arranged on the welding equipment, and a welding base, an air cylinder, an electrode tip and an electrode base are arranged in the welding mechanism. According to the automatic welding machine for the cable bridge, the electrode block and the electrode tip are directly connected through the conductive terminal, butt joint work of the electrode block and the electrode tip can be completed by achieving insertion, and stable connection between the electrode block and the electrode tip can be completed while electric conduction is achieved through the conductive terminal. Meanwhile, during disassembly, only the unlocking piece needs to be pressed, the unlocking piece is kept to push the limiting tongue piece on the conductive terminal to enable the limiting tongue piece to enter the stamping hole, then the conductive terminal can be taken down under matched pushing of the spring, matching of other tools is not needed, the operation process is simplified, the disassembly and assembly time is shortened, and the disassembly and assembly efficiency is improved. And delay of production schedule due to long-time stop of equipment caused by replacement of the electrode block is avoided.

Description

Technical Field

[0001] This invention relates to welding technology, and more particularly to an automatic welding machine for cable trays. Background Technology

[0002] Cable trays are workpieces used to carry cables. They consist of parallel horizontal beams and several crossbeams, which are welded together using welding equipment to maintain their supporting strength. To improve the overall welding speed and quality of cable trays, automated welding operations are currently mainly used, such as resistance welding. However, the electrode blocks in resistance welding are critical components in the welding process. Wear, oxidation, or breakage can lead to a decline in weld quality, requiring timely replacement based on usage. After prolonged use, the surface of the electrode blocks may oxidize, deform, or break due to high temperatures, resulting in unstable welding current and substandard weld quality. Therefore, a structure that allows for convenient and rapid replacement of the electrode blocks is needed. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention proposes an automatic cable tray welding machine.

[0004] An automatic cable tray welding machine, characterized in that it comprises:

[0005] Conveyor rack;

[0006] A welding device that works in conjunction with a conveyor frame includes a moving mechanism, a welding mechanism, and a feeding mechanism. The welding mechanism includes a welding seat, a cylinder, an electrode head, and an electrode base. The electrode base is mounted on the welding seat and located below the electrode head. The electrode head is connected to the cylinder and moves up and down with the cylinder. The electrode head has a mounting block and an electrode block. An electrode plate is located between the mounting block and the electrode block. The electrode block has symmetrically arranged conductive terminals. Unlocking components are located on both sides of the mounting block. The conductive terminals pass through the electrode plate and are inserted into the interior of the mounting block to maintain the connection between the electrode block and the mounting block.

[0007] And the transfer mechanism that works with the welding equipment,

[0008] The mounting block has symmetrically arranged mounting areas on its bottom surface, and symmetrically arranged insertion slots on the mounting areas. The unlocking component cooperates with the insertion slots.

[0009] The electrode plate is provided with through holes that mate with the mounting area, and the conductive terminal is inserted into the mounting area by mates with the through holes;

[0010] The electrode block is provided with symmetrically arranged mounting slots, and a conductive plate that cooperates with the conductive terminal is provided in the mounting slot. The conductive plate is inserted in the middle of the conductive terminal and keeps the conductive terminal from being forced to move towards the middle.

[0011] The conductive terminal consists of a connecting section and a first limiting arm and a second limiting arm disposed at both ends of the connecting section, and the conductive plate is inserted between the first limiting arm and the second limiting arm.

[0012] In this invention, the mounting block is further provided with symmetrically arranged positioning holes, the electrode plate is provided with through holes that cooperate with the positioning holes, and the electrode block is provided with conductive rods that cooperate with the positioning holes and through holes.

[0013] In this invention, the unlocking component consists of a mounting plate, an inclined plate, a pressure plate, and a pushing plate. The mounting plate is mounted on the mounting block. The inclined plate and the pushing plate are connected by the pressure plate. The pressure plate is kept vertically positioned. The inclined plate and the pushing plate are kept inclined, but in opposite directions. The end of the pushing plate away from the pressure plate is inserted into the insertion slot.

[0014] In this invention, the conductive plate has a limiting groove in the middle, and the upper end of the conductive plate forms an insertion end, with a first guide slope symmetrically arranged on the insertion end.

[0015] In this invention, a holding region is formed between the first limiting arm and the second limiting arm, and the conductive plate is inserted into the holding region.

[0016] In this invention, the first limiting arm is composed of a first inclined segment, a first arc segment, a first vertical segment and a first mounting segment. The first inclined segment is connected to the connecting segment. A first elastic segment is provided at the connection between the first vertical segment and the first mounting segment. A first elastic region is formed between the first elastic segment and the first vertical segment. A first protrusion is provided on the inner wall of the first inclined segment.

[0017] In this invention, the second limiting arm is composed of a second inclined segment, a second arc segment, a second vertical segment, and a second mounting segment. The second inclined segment is connected to the connecting segment. A second elastic segment is provided at the connection between the second vertical segment and the second mounting segment. The upper end of the second elastic segment is connected to the second inclined segment. A second elastic region is formed between the second elastic segment and the second vertical segment. A second protrusion is provided on the inner wall of the second inclined segment.

[0018] In this invention, the second elastic segment is provided with a positioning segment, the lower end face of the positioning segment forms a second guiding slope, the upper end face forms a supporting surface, the end of the positioning segment away from the second elastic segment is provided with a positioning protrusion, the positioning segment is located at the upper end of the first elastic segment, and a gap is formed between the positioning segment and the first elastic segment.

[0019] In this invention, the first inclined section and the second inclined section are provided with punching holes, and the punching holes are provided with limiting tongues. The limiting tongues are placed on the electrode plate and are located at the position corresponding to the insertion slot.

[0020] In this invention, the electrode block is provided with a retaining hole, and a spring is provided in the retaining hole. The upper end of the spring contacts the electrode plate, and a moving gap is formed between the electrode plate and the electrode block.

[0021] The automatic cable tray welding machine of this invention has the following advantages: It uses conductive terminals to directly connect the electrode block and the electrode head, allowing for easy insertion and connection. The conductive terminals provide both electrical conductivity and a stable connection between the electrode block and the electrode head. Furthermore, during disassembly, simply pressing the unlocking mechanism pushes the limiting tongue on the conductive terminal into the punch hole. The conductive terminal can then be removed with the help of a spring, eliminating the need for other tools. This simplifies the operation, shortens disassembly and assembly time, and prevents prolonged equipment downtime and production delays caused by electrode block replacement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the automatic cable tray welding machine of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the transfer mechanism structure in the middle;

[0024] Figure 3 for Figure 1 A schematic diagram of the welding equipment structure in the diagram;

[0025] Figure 4 for Figure 3 A schematic diagram of the cable tray structure in the diagram;

[0026] Figure 5 This is a schematic diagram of the second crossbeam structure in this invention;

[0027] Figure 6 for Figure 3 A schematic diagram of the welding mechanism structure in the diagram;

[0028] Figure 7 This is a schematic diagram of the structure of the conductive block, the first electrode terminal, and the second electrode terminal in the prior art.

[0029] Figure 8 This is a schematic diagram of the electrode head, mounting block, electrode plate, electrode block and unlocking component in this invention;

[0030] Figure 9 for Figure 8Exploded view of the mounting block, electrode plate, electrode block and unlocking component in the image;

[0031] Figure 10 for Figure 9 A schematic diagram of the mounting block structure in the diagram;

[0032] Figure 11 for Figure 9 A schematic diagram of the electrode plate structure in the diagram;

[0033] Figure 12 for Figure 9 A schematic diagram of the electrode block structure in the diagram;

[0034] Figure 13 for Figure 9 A schematic diagram of the conductive terminal structure in the diagram;

[0035] Figure 14 for Figure 13 The main view;

[0036] Figure 15 for Figure 13 Cross-sectional view;

[0037] Figure 16 This is a cross-sectional view of the mounting block, electrode plate, electrode block, conductive terminal, and unlocking component in this invention;

[0038] Figure 17 This is an analysis diagram of the installation state of the electrode block and conductive plate structure in this invention.

[0039] In the diagram: 1. Conveyor frame; 2. Welding equipment; 3. Transfer mechanism; 4. Horizontal beam; 5. Moving mechanism; 6. First crossbeam; 7. Cable tray; 8. Second crossbeam; 9. Flat plate; 10. Welding mechanism; 11. Unloading mechanism; 12. Base; 13. Welding seat; 14. Cylinder; 15. Electrode head; 16. Electrode seat; 17. Fixing block; 18. Locking block; 19. Electrode block; 20. First electrode terminal; 21. Second electrode terminal; 22. Locking hole; 23. Insertion post; 24. Fixing hole; 25. Mounting block; 26. Electrode plate; 27. Conductive terminal; 28. Unlocking component; 29. ​​Mounting plate; 30. Inclined plate; 31. Pressure plate; 32. Pushing plate; 33. Mounting groove; 34. Limiting tongue; 35. Punching hole; 36. Through hole; 37. Guide slope; 38. First arc segment; 39. Second arc segment; 40. Mounting area; 41. Conveying mechanism; 42. Bracket; 43. Clamping mechanism; 44. Insertion groove; 45. Positioning hole; 46. Through hole. 47. Conductive rod; 48. Wire hole; 49. Bolt hole; 50. Countersunk hole; 51. Bolt; 52. Conductive plate; 53. Limiting groove; 54. Insertion end; 55. First guide slope; 56. Positioning section; 57. Clamping area; 58. Connecting section; 59. First limiting arm; 60. Second limiting arm; 61. Holding area; 62. First inclined section; 63. First vertical section; 64. First mounting section; 65. First elastic section; 66. First elastic area; 67. First protrusion; 68. Third guide slope; 69. Fourth guide slope; 70. Second mounting section; 71. Fifth guide slope; 72. Passing area; 73. Second inclined section; 74. Second vertical section; 75. Second elastic section; 76. Second elastic area; 77. Second protrusion; 78. Second guide slope; 79. Support surface; 80. Positioning protrusion; 81. Gap; 82. Holding hole; 83. Spring; 84. Movement gap; 85. Guide area; 86. Second bolt hole; 87. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0041] like Figures 1 to 17 As shown, this automatic cable tray welding machine of the present invention includes a conveyor frame 1, a welding device 2, and a transfer mechanism 3. The conveyor frame 1 has two sections for supporting a long horizontal beam 4, allowing it to gradually enter the moving mechanism 5 within the welding device 2. The moving mechanism 5 pulls the horizontal beam 4 along the conveyor frame 1. The welding device 2 is used to weld the contact portion between the horizontal beam 4 and the first crossbeam 6, while the transfer mechanism 3 clamps and transfers the already welded cable tray 7.

[0042] The specific details of the welding equipment 2 and the transfer mechanism 3 in this application can be found in the structure of the prior art, so they will not be described in detail here.

[0043] like Figure 4As shown, the cable tray 7 consists of symmetrically and parallelly arranged horizontal beams 4 and several first crossbeams 6. The first crossbeams 6 can have different structures, such as... Figure 5 As shown, the second crossbeam 8 has flat plates 9 on both sides. The flat plates 9 can increase the contact area with the horizontal beam 4, thereby enhancing the strength of the cable tray 7.

[0044] Welding equipment 2 works in conjunction with conveyor frame 1. Welding equipment 2 is equipped with a moving mechanism 5, a welding mechanism 10, and a feeding mechanism 11. Welding equipment 2 is also equipped with a base 12, which supports the moving mechanism 5, the welding mechanism 10, and the feeding mechanism 11. The moving mechanism 5 is used to pull the horizontal beam 4, while the welding mechanism 10 is used to weld the contact part between the horizontal beam 4 and the first crossbeam 6. The feeding mechanism 11 is used to automatically unload the first crossbeam 6, allowing it to gradually fall onto the horizontal beam 4 at certain intervals. Then, as the horizontal beam 4 moves, it reaches the welding mechanism 10 for welding.

[0045] The welding mechanism 10 includes a welding seat 13, a cylinder 14, an electrode head 15, and an electrode holder 16. The welding mechanism 10 also includes a fixing block 17 and a locking block 18. The electrode head 15 is positioned between the fixing block 17 and the locking block 18. The electrode holder 16 is mounted on the welding seat 13 and is located below the electrode head 15. The electrode head 15 is connected to the cylinder 14 and moves up and down with the cylinder 14. The electrode holder 16 is located at the lower end of the horizontal beam 4, while the electrode block 19 is located at the upper end of the horizontal beam 4 and the first crossbeam 6, thus maintaining direct contact between the horizontal beam 4 and the electrode holder 16, and direct contact between the first crossbeam 6 and the electrode block 19.

[0046] like Figure 7 The diagram illustrates a conventional structure comprising a conductive block 20, a first electrode terminal 21, and a second electrode terminal 22. The conductive block 20 has a locking hole 23 containing a locking rod. The first electrode terminal 21 or the second electrode terminal 22 has an insertion post 24 with a fixing hole 25 in the center. A pin is inserted into the fixing hole 25 from the lower end of the first electrode terminal 21 or the second electrode terminal 22, extending into the locking hole 23. This allows the locking rod to be inserted into the upper end of the pin, thus restricting the position of the first electrode terminal 21 or the second electrode terminal 22. While functional, this design is inconvenient to use and disassemble, making quick assembly and disassembly difficult and requiring auxiliary tools.

[0047] The first electrode terminal 21 is used in conjunction with the first crossbeam 6, while the second electrode terminal 22 is used in conjunction with the second crossbeam 8.

[0048] The electrode head 15 is provided with a mounting block 26 and an electrode block 19. An electrode plate 27 is provided between the mounting block 26 and the electrode block 19. The electrode plate 27 is used to limit the position of the conductive terminal 28, so that it can be limited, thereby limiting the position of the electrode block 19. The electrode block 19 is provided with symmetrically arranged conductive terminals 28. Unlocking members 29 are provided on both sides of the mounting block 26. The conductive terminals 28 pass through the electrode plate 27 and are inserted into the interior of the mounting block 26, maintaining the connection between the electrode block 19 and the mounting block 26.

[0049] The unlocking component 29 consists of a mounting plate 30, an inclined plate 31, a pressure plate 32, and a pushing plate 33. The mounting plate 30 is mounted on the mounting block 26, and the inclined plate 31 and the pushing plate 33 are connected by the pressure plate 32. The pressure plate 32 is kept vertical, while the inclined plate 31 and the pushing plate 33 are kept inclined, but in opposite directions. The end of the pushing plate 33 away from the pressure plate 32 is inserted into the insertion slot 45.

[0050] like Figure 16 As shown, the push plate 33 is disposed in the insertion slot 45. Since the inclined plate 31 and the push plate 33 are inclined, after the pressure plate 32 is pressed and pushed, i.e., pushed in the direction of F2, the inclined plate 31 is deformed by force and gradually changes from an inclined state to a vertical state. The push plate 33 enters the insertion slot 45, thereby pushing the limiting tongue 35 on the electrode plate 27 into the punch hole 36, no longer restricting the position of the conductive terminal 28, and thus allowing the conductive terminal 28 to move out through the through hole 37.

[0051] A guide slope 38 is provided on the push plate 33. The guide slope 38 is used to cooperate with the first arc segment 39 and the second arc segment 40, so that the first arc segment 39 and the second arc segment 40 can slide on the guide slope 38, thereby allowing the first arc segment 39 and the second arc segment 40 to enter the through hole 37 along the guide slope 38, keeping the conductive terminal 28 removed from the installation area 41.

[0052] The transfer mechanism 3 works in conjunction with the welding equipment 2. The transfer mechanism 3 includes a conveying mechanism 42, a support 43, and a clamping mechanism 44. The conveying mechanism 42 works in conjunction with the moving mechanism 5 to convey the cable tray 7. The support 43 is used to support the clamping mechanism 44. The clamping mechanism 44 is used to clamp the welded cable tray 7 and lift it away from the conveying mechanism 42.

[0053] The bottom surface of the mounting block 26 has symmetrically arranged mounting areas 41, and symmetrically arranged insertion slots 45 on the mounting areas 41. The unlocking piece 29 cooperates with the insertion slots 45. The mounting block 26 also has symmetrically arranged positioning holes 46, and the electrode plate 27 has through holes 47 that cooperate with the positioning holes 46. The electrode block 19 has conductive rods 48 that cooperate with the positioning holes 46 and the through holes 47. The conductive rods 48 can both realize the mounting and positioning of the electrode block 19 and realize the electrical connection with the electrode head 15.

[0054] The electrode head 15 is provided with an wire hole 49 and a first bolt hole 50. The wire hole 49 is used for inserting wires, and then the wires are fixed by a bolt installed in the first bolt hole 50, and are electrically connected to the electrode head 15.

[0055] The electrode plate 27 has a through hole 37 that mates with the mounting area 41, and the conductive terminal 28 is inserted into the mounting area 41 through the through hole 37. The electrode plate 27 also has a countersunk hole 51, and the bolt 52 is disposed in the countersunk hole 51, while the mounting block 26 has a second bolt hole 87 that mates with the bolt 52.

[0056] The electrode block 19 is provided with symmetrically arranged mounting grooves 34. A conductive plate 53, which mates with the conductive terminal 28, is provided within each mounting groove 34. The conductive plate 53 is inserted into the middle of the conductive terminal 28, preventing the conductive terminal 28 from being forced towards the center. A limiting groove 54 is provided in the middle of the conductive plate 53, and an insertion end 55 is formed at the upper end of the conductive plate 53. Symmetrically arranged first guide slopes 56 are provided on the insertion end 55. The limiting groove 54 cooperates with the positioning section 57 for limiting positioning, while the insertion end 55 is used to mate with the conductive terminal 28, allowing the conductive plate 53 to enter the clamping area 58.

[0057] The conductive terminal 28 consists of a connecting section 59 and a first limiting arm 60 and a second limiting arm 61 disposed at both ends of the connecting section 59. The conductive plate 53 is inserted between the first limiting arm 60 and the second limiting arm 61. A holding region 62 is formed between the first limiting arm 60 and the second limiting arm 61, and the conductive plate 53 is inserted into the holding region 62.

[0058] The first limiting arm 60 is composed of a first inclined section 63, a first arc-shaped section 39, a first vertical section 64, and a first mounting section 65. The first inclined section 63 is connected to the connecting section 59. A first elastic section 66 is provided at the connection between the first vertical section 64 and the first mounting section 65. A first elastic region 67 is formed between the first elastic section 66 and the first vertical section 64. A first protrusion 68 is provided on the inner wall of the first inclined section 63.

[0059] A third guide slope 69 is provided on the first elastic segment 66, a fourth guide slope 70 is formed on the inner wall of the first inclined segment 63, and a fifth guide slope 72 is formed on the first mounting segment 65 and the second mounting segment 71. A passage area 73 is formed between the fourth guide slope 70 and the positioning segment 57, which facilitates the insertion of the conductive plate 53 and allows it to move within the passage area 73, keeping the positioning segment 57 inside the limiting groove 54.

[0060] The second limiting arm 61 consists of a second inclined section 74, a second arc-shaped section 40, a second vertical section 75, and a second mounting section 71. The second inclined section 74 is connected to the connecting section 59. A second elastic section 76 is provided at the connection between the second vertical section 75 and the second mounting section 71. The upper end of the second elastic section 76 remains connected to the second inclined section 74, which can enhance the strength of the second elastic section 76. A second elastic region 77 is formed between the second elastic section 76 and the second vertical section 75. A second protrusion 78 is provided on the inner wall of the second inclined section 74.

[0061] The second elastic segment 76 is provided with a positioning segment 57. The lower end face of the positioning segment 57 forms a second guide slope 79, and the upper end face forms a support surface 80. The end of the positioning segment 57 away from the second elastic segment 76 is provided with a positioning protrusion 81. The positioning segment 57 is located at the upper end of the first elastic segment 66, and a gap 82 is formed between the positioning segment 57 and the first elastic segment 66. This gap 82 is used to deform the first elastic segment 66 under force when it is pushed by the insertion end 55, keeping the width of the first elastic region 67 smaller and closer to the first vertical segment 64. This ensures that the first elastic segment 66 will not push the positioning segment 57 during deformation and movement when it is pushed by the first vertical segment 64, and will not be blocked from resetting by the positioning segment 57.

[0062] The first inclined section 63 and the second inclined section 74 are provided with punching holes 36, and a limiting tongue 35 is provided in the punching holes 36. The limiting tongue 35 is placed on the electrode plate 27 and is located at the position corresponding to the insertion groove 45.

[0063] The electrode block 19 is provided with a retaining hole 83, and a spring 84 is provided inside the retaining hole 83. The upper end of the spring 84 contacts the electrode plate 27, and a moving gap 85 is formed between the electrode plate 27 and the electrode block 19. The spring 84 is used to reduce the impact force when the electrode block 19 is driven by the cylinder 14 to move downward and act on the first crossbeam 6, so as to prevent the electrode block 19 from directly hitting the electrode plate 27.

[0064] The electrode block 19, subjected to the reverse force of the first crossbeam 6, will keep moving upwards. It can then contact the connecting section 59 via the conductive plate 53, thereby pushing the conductive terminal 28 upwards a short distance. This distance is due to the moving gap 85 formed between the electrode block 19 and the electrode plate 27.

[0065] like Figure 17 As shown, when the conductive terminal 28 needs to be installed on the conductive plate 53, the vertically arranged conductive terminal 28 can be rotated in the direction of F1 to make the conductive terminal 28 tilted. Then, the insertion end 55 of the conductive plate 53 is aligned with the guide area 86 between the first elastic segment 66 and the second elastic segment 76 and inserted. The insertion end 55 is kept in contact with the second guide slope 79 or the third guide slope 69 first, and then the insertion end 55 is held by the positioning segment 57. Then, under the guidance of the second guide slope 79, the first elastic segment 66 is pushed to deform under force. Then, the first elastic segment 66 contacts the first vertical segment 64. Then, the first limiting arm 60 is kept deformed under force and moves away from the second limiting arm 61, keeping the distance between the first limiting arm 60 and the second limiting arm 61 increasing. The insertion end 55 reaches the passage area 73, and finally, guided by the fourth guide slope 70, it reaches the clamping area 58, while the positioning section 57 reaches the limiting groove 54, so that the conductive terminal 28 is installed on the conductive plate 53.

[0066] Alternatively, the first limiting arm 60 can be bent to increase the distance between the first limiting arm 60 and the second limiting arm 61, thereby installing it onto or removing it from the conductive plate 53.

[0067] When the insertion end 55 contacts the connecting section 59, the upper inner wall of the limiting groove 54 can be pushed by the positioning protrusion 81 to deform downward, thereby facilitating the disassembly of the conductive terminal 28.

[0068] After the conductive terminal 28 is installed on the conductive plate 53, when the electrode block 19 is installed on the lower end of the electrode plate 27, it is only necessary to directly align the conductive rod 48 with the positioning hole 46 and the through hole 47, and insert the conductive terminal 28 with the through hole 37.

[0069] During disassembly, pressing the pressure plate 32 will cause the push plate 33 to push the limiting tongue 35, thereby pushing out the conductive terminal 28 under the elastic force of the spring 84, keeping the electrode block 19 out of contact with the electrode plate 27.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic cable tray welding machine, characterized in that, include: Conveyor rack; A welding device that works in conjunction with a conveyor frame includes a moving mechanism, a welding mechanism, and a feeding mechanism. The welding mechanism includes a welding seat, a cylinder, an electrode head, and an electrode base. The electrode base is mounted on the welding seat and located below the electrode head. The electrode head is connected to the cylinder and moves up and down with the cylinder. The electrode head has a mounting block and an electrode block. An electrode plate is located between the mounting block and the electrode block. The electrode block has symmetrically arranged conductive terminals. Unlocking components are located on both sides of the mounting block. The conductive terminals pass through the electrode plate and are inserted into the interior of the mounting block to maintain the connection between the electrode block and the mounting block. And the transfer mechanism that works with the welding equipment, The mounting block has symmetrically arranged mounting areas on its bottom surface, and symmetrically arranged insertion slots on the mounting areas. The unlocking component cooperates with the insertion slots. The electrode plate is provided with through holes that mate with the mounting area, and the conductive terminal is inserted into the mounting area by mates with the through holes; The electrode block is provided with symmetrically arranged mounting slots, and a conductive plate that cooperates with the conductive terminal is provided in the mounting slot. The conductive plate is inserted in the middle of the conductive terminal and keeps the conductive terminal from being forced to move towards the middle. The conductive terminal consists of a connecting section and a first limiting arm and a second limiting arm disposed at both ends of the connecting section, and the conductive plate is inserted between the first limiting arm and the second limiting arm.

2. The automatic cable tray welding machine according to claim 1, characterized in that, The mounting block is also provided with symmetrically arranged positioning holes, the electrode plate is provided with through holes that cooperate with the positioning holes, and the electrode block is provided with conductive rods that cooperate with the positioning holes and through holes.

3. The automatic cable tray welding machine according to claim 1, characterized in that, The unlocking component consists of a mounting plate, an inclined plate, a pressure plate, and a pushing plate. The mounting plate is mounted on the mounting block. The inclined plate and the pushing plate are connected by the pressure plate. The pressure plate is kept vertical. The inclined plate and the pushing plate are kept inclined, but in opposite directions. The end of the pushing plate away from the pressure plate is inserted into the insertion slot.

4. The automatic cable tray welding machine according to claim 1, characterized in that, The conductive plate has a limiting groove in the middle, and the upper end of the conductive plate forms an insertion end. The insertion end has a first guide slope that is symmetrically arranged.

5. The automatic cable tray welding machine according to claim 4, characterized in that, A holding area is formed between the first limiting arm and the second limiting arm, and the conductive plate is inserted into the holding area.

6. The automatic cable tray welding machine according to claim 5, characterized in that, The first limiting arm is composed of a first inclined section, a first arc-shaped section, a first vertical section and a first mounting section. The first inclined section is connected to the connecting section. A first elastic section is provided at the connection between the first vertical section and the first mounting section. A first elastic region is formed between the first elastic section and the first vertical section. A first protrusion is provided on the inner wall of the first inclined section.

7. The automatic cable tray welding machine according to claim 6, characterized in that, The second limiting arm is composed of a second inclined section, a second arc-shaped section, a second vertical section, and a second mounting section. The second inclined section is connected to the connecting section. A second elastic section is provided at the connection between the second vertical section and the second mounting section. The upper end of the second elastic section is connected to the second inclined section. A second elastic region is formed between the second elastic section and the second vertical section. A second protrusion is provided on the inner wall of the second inclined section.

8. The automatic cable tray welding machine according to claim 7, characterized in that, The second elastic segment is provided with a positioning segment. The lower end face of the positioning segment forms a second guide slope, and the upper end face forms a support surface. The end of the positioning segment away from the second elastic segment is provided with a positioning protrusion. The positioning segment is located at the upper end of the first elastic segment, and a gap is formed between the positioning segment and the first elastic segment.

9. The automatic cable tray welding machine according to claim 8, characterized in that, The first and second inclined sections are provided with punching holes, and a limiting tongue is provided in the punching holes. The limiting tongue is placed on the electrode plate and is located at the position corresponding to the insertion slot.

10. The automatic cable tray welding machine according to claim 9, characterized in that, The electrode block is provided with a retaining hole, and a spring is provided in the retaining hole. The upper end of the spring contacts the electrode plate, and a moving gap is formed between the electrode plate and the electrode block.

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