Cutting, welding and assembling equipment for relay assembly

Abstract

The cutting, welding and assembling equipment comprises a first machine table, a wire coil, a wire pushing mechanism, a cutting mechanism, a first welding and assembling mechanism and a second welding and assembling mechanism, wherein the wire coil, the wire pushing mechanism, the cutting mechanism, the first welding and assembling mechanism and the second welding and assembling mechanism are arranged on the first machine table. A copper wire is wound on the wire coil, the wire pushing mechanism is used for pulling the unfolded copper wire to move in the length direction of the copper wire, the cutting mechanism is used for cutting the copper wire into sections, the first welding assembly mechanism is used for welding a static reed assembly with one end of the copper wire section, and the second welding assembly mechanism is used for welding the static reed assembly with the other end of the copper wire section. And the welding assembly mechanism II is used for welding the movable contact spring with the other end of the copper conductor section. The cutting, welding and assembling equipment for the relay assembly has the beneficial effects that automatic cutting of a copper wire and automatic assembling and welding of the copper wire, a static reed assembly and a movable reed can be achieved, manual auxiliary welding and cutting are not needed, the welding speed is high, the efficiency is high, the welding quality is good, and the welding quality is stable.

Description

Technical Field

[0001] The invention relates to the technical field of relays, and in particular to cutting, welding and assembling equipment for relay components. Background Art

[0002] As the instruction manual Fig.11 The figure shows some structural components inside the relay, which include a static reed assembly, a moving reed, and a copper wire. The two ends of the copper wire are respectively connected to the static reed assembly and the moving reed by welding.

[0003] In the prior art, the operation of welding the static spring assembly, the dynamic spring and the two ends of the copper wire is completed by manually assisting welding equipment. In this process, the human operator manually takes the copper wire, the static spring assembly, the dynamic spring and places the above components in the specified positions. Obviously, the working efficiency of this welding method is not very high and the welding quality is also unstable. Summary of the invention

[0004] The main purpose of the present invention is to provide a cutting, welding and assembling device for relay components, aiming to solve the problems mentioned in the above background technology.

[0005] To solve the above problems, the present invention proposes a cutting, welding and assembling device for relay components, comprising a machine platform 1 and a wire reel, a wire pushing mechanism, a cutting mechanism, a welding assembly mechanism 1 and a welding assembly mechanism 2 arranged on the machine platform 1; The wire drum is wound with a copper wire, the wire pushing mechanism is used to pull the unfolded copper wire to move along the length direction of the copper wire, the cutting mechanism is used to cut the copper wire into segments, the first welding assembly mechanism is used to weld the static spring assembly to one end of the copper wire segment, and the second welding assembly mechanism is used to weld the dynamic spring to the other end of the copper wire segment; The welding assembly mechanism 1 comprises: A second rotating platform is arranged on the first machine platform, and a plurality of carriers for placing the static spring assembly are arranged on the second rotating platform. The second rotating platform drives the plurality of carriers to rotate around the vertical axis; The second vibration feeding device is arranged on the first machine platform and is used to convey the static spring assembly to the second rotating platform; The second material transfer device is arranged on the first machine platform and is used to place the static spring sheet assembly delivered by the second vibration feeding device onto the second carrier; The fourth automatic clamp is fixedly connected to the machine platform, and the fourth automatic clamp can clamp and fix the head of the unfolded copper wire. The claw of the fourth automatic clamp is provided with a through hole, and the head of the copper wire is located directly below the through hole and above the second rotating platform. The second rotating platform can drive the static spring assembly on the second carrier to rotate to directly below the through hole and the head of the copper wire. A lifting device 10 is fixedly connected to the machine platform. The lower end of the lifting device 10 is connected to the welding device 2. The lifting device 10 drives the welding device 2 to rise and fall. The welding device 2 has a welding head. The welding device 2 is lowered to drive the welding head to descend and penetrate the through hole to push the head of the copper wire to descend and contact with the static spring assembly on the carrier 2 and be welded together. The second welding assembly mechanism comprises: A rotating platform 1 is arranged on the machine platform 1, and a plurality of carriers 1 for placing the movable spring sheets are arranged on the rotating platform 1, and the rotating platform 1 drives the plurality of carriers 1 to rotate around the vertical axis; The material transfer device 3 is arranged on the machine platform 1 and is used to place the static spring assembly and the copper wire segment welded together on the carrier 2 onto the carrier 1; A vibration feeding device 1, arranged on a machine platform 1, for conveying a moving spring sheet to a rotating platform 1; A material transfer device 1 is provided on a machine platform 1 and is used to place the movable spring piece conveyed by the vibration feeding device 1 on a carrier 1 and make the movable spring piece contact with the other end of the copper wire segment; The lifting device 3 is fixedly connected to the machine platform, and the lower end of the lifting device 3 is connected to the welding device 1. The lifting device 3 drives the welding device 1 to descend and welds the moving spring piece on the carrier 1 that is rotated directly below the welding device 1 to the other end of the copper wire segment; The material moving device 4 is arranged on the machine platform 1 and is used to move the welded movable spring piece away from the carrier 1.

[0006] In one embodiment, the second material transfer device comprises: A transverse moving device 7 is arranged on the machine platform 1; The lifting device nine is connected to the transverse moving device seven, and drives the lifting device nine to move horizontally through the transverse moving device seven; The suction nozzle is connected to the lifting device nine, and the suction nozzle is driven to rise and fall through the lifting device nine; The suction nozzle, driven by the transverse moving device seven and the lifting device nine, sucks the static spring sheet assembly delivered by the vibration feeding device two and places it on the carrier two.

[0007] In one embodiment, the material moving device 3 comprises: A transverse moving device 1 is arranged on a machine platform 1; The lifting device 1 is connected to the transverse moving device 1, and the lifting device 1 is driven to move horizontally by the transverse moving device 1; The rotating device 1 is connected to the lifting device 1, and the lifting device 1 drives the rotating device 1 to rise and fall; A pair of automatic grippers 1 are connected to a rotating device 1, and the rotating device 1 drives the pair of automatic grippers 1 to rotate around a vertical axis; The automatic clamping claw 1, driven by the transverse moving device 1, the lifting device 1 and the rotating device 1, clamps the welded static spring sheet assembly and the copper wire segment on the carrier 2 and places them on the carrier 1.

[0008] In one embodiment, the material transfer device 1 comprises: The second transverse moving device is arranged on the first machine platform; The lifting device 2 is connected to the transverse moving device 2, and drives the lifting device 2 to move horizontally through the transverse moving device 2; The second rotating device is connected to the second lifting device, and the second lifting device drives the second rotating device to rise and fall; The second automatic gripper is connected to the second rotating device, and the second automatic gripper is driven to rotate around the vertical axis through the second rotating device; Driven by the second transverse moving device, the second lifting device and the second rotating device, the second automatic clamping claw clamps the moving spring sheet conveyed by the first vibration feeding device and places it on the first carrier, and makes the moving spring sheet contact with the other end of the copper wire segment.

[0009] In one embodiment, the material moving device 4 comprises: A third traverse device is arranged on the first machine platform; The lifting device 4 is connected to the transverse moving device 3, and drives the lifting device 4 to move horizontally through the transverse moving device 3; The automatic gripper three is connected to the lifting device four, and the lifting device four drives the automatic gripper three to rise and fall; A lower hopper fixedly connected to the machine platform is arranged on the four sides of the material moving device. Driven by the transverse moving device three and the lifting device four, the automatic clamp three clamps the welded movable spring sheet on the carrier one and places it in the lower hopper.

[0010] In one embodiment, the cutting mechanism comprises: The frame 2 is horizontally slidably connected with the machine platform 1; A lifting device eight is fixedly connected to the frame two; The lower pressing block 3 is vertically slidably connected to the frame 2 and is connected to the lifting device 8. The lower pressing block 3 is pushed up and down by the lifting device 8. The lower pressing block 3 is provided with a cutting knife. The pressure block is located directly below the lower pressure block 3 and is fixedly connected to the frame 2. The upper surface of the pressure block is provided with a threading groove 2 extending along the length direction of the unfolded copper wire. The unfolded copper wire passes through the threading groove 2 under the drive of the wire pushing mechanism and slides in the threading groove 2 until the automatic clamping claw 4 clamps the head of the copper wire and fixes it. The cutting knife descends to cut off the copper wire in the threading groove 2. The transverse moving device 6 is fixedly connected to the machine platform 1 and connected to the frame 2, and is used to drive the frame 2 to move horizontally along the length direction of the unfolded copper wire.

[0011] In one embodiment, the wire pushing mechanism comprises: A slider is horizontally slidably connected to the machine platform, and the slider is provided with a threading groove extending along the length direction of the unfolded copper wire; The traverse device 5 is fixedly connected to the machine platform 1 and connected to the slider, and is used to push the slider to move horizontally along the length direction of the unfolded copper wire; The pressing block 2 is located directly above the slider and is connected to the lifting device 7. The lifting device 7 drives the pressing block 2 to descend to press and fix the copper wire in the wire threading groove 1. The lifting device 7 is fixedly connected to the slider. When the pressing block 2 is not in contact with the copper wire, the copper wire can slide in the wire threading groove 1.

[0012] In one embodiment, a cutting, welding, and assembling device for a relay assembly further includes a tensioning mechanism, wherein the tensioning mechanism is used to tension the copper wires unrolled from the wire reel, and the unrolled copper wires enter the wire pushing mechanism after being tensioned; The tensioning mechanism comprises: A frame 1 is fixedly connected to the machine platform 1, and a fixed pulley and a movable pulley are arranged on the frame 1, and the copper wire unwound from the wire drum is wound around the fixed pulley and the movable pulley; The lifting device five is fixedly connected to the frame one and is connected to the movable pulley, and is used for pushing the movable pulley to move and tension the copper wire.

[0013] In one embodiment, a cutting, welding, and assembling device for a relay assembly further includes a heat pressing mechanism, wherein the unfolded copper wire enters the heat pressing mechanism for heat pressing after being tensioned, and the copper wire after heat pressing enters the wire pushing mechanism; The hot pressing mechanism is used to hot press a plurality of compact sections on the copper wire at intervals, and the cutting mechanism cuts the copper wire into a plurality of copper wire sections by cutting the compact sections; The hot pressing mechanism comprises: Machine platform 2 is fixedly connected to machine platform 1. A left pressing block, a right pressing block and a lower pressing block 1 are arranged on machine platform 2. The left pressing block and the right pressing block are arranged at intervals. The lower pressing block 1 is located below the left pressing block and the right pressing block. The right pressing block is slidably connected to machine platform 2. The transverse moving device 4 is fixedly connected to the machine table 2 and connected to the right pressing block, and is used to drive the right pressing block to move horizontally toward or away from the left pressing block; The upper pressing block is located directly above the lower pressing block 1 and is connected to the lifting device 6. The upper pressing block is driven down by the lifting device 6. The lifting device 6 is fixedly connected to the machine platform 2. The copper wire passes through the left pressing block and the right pressing block, the right pressing block moves horizontally close to the left pressing block to clamp the copper wire left and right, and the upper pressing block descends close to the lower pressing block to clamp the copper wire up and down; The left pressing block, the right pressing block, the lower pressing block 1 and the upper pressing block are provided with heating devices, which heat the copper wires to soften the copper wires in the copper wires, and then the copper wires are adhered to each other as a whole under the extrusion of the left pressing block, the right pressing block, the lower pressing block 1 and the upper pressing block.

[0014] In one embodiment, a cutting, welding, and assembling device for a relay assembly further includes an oiling mechanism, wherein the oiling mechanism is used to apply welding oil to the compacting section before the cutting knife cuts the copper wire; The oiling mechanism comprises: The pressure rod is located between the automatic clamping jaw 4 and the pressure block, above the carrier 2, and is fixedly connected to the machine platform 1. The head of the copper wire passes through the bottom of the pressure rod and approaches the automatic clamping jaw 4. The oil storage box is detachably fixedly connected to the pressure rod, and the oil storage box is provided with a threading hole coaxial with the unfolded copper wire, and the unfolded copper wire can pass through the threading hole. The cross section of the threading hole is rectangular, and an oil overflow hole is provided on the hole wall of the threading hole; The smoothing frame is located in the threading hole and is coaxial with the threading hole. It is close to the hole wall of the threading hole and slides along the axial direction of the threading hole. The outer wall of the compacting section slides close to the inner wall of the smoothing frame. The end surface of the smoothing frame close to the pressure block is an inclined surface. One end of the inclined surface is located on the inner wall of the smoothing frame, and the other end of the inclined surface is located on the hole wall of the threading hole. The oil storage box 2 is located above the pressure rod and is connected to the oil storage box 1. The oil storage box 1 and the oil storage box 2 both store welding oil. A push-pull device is fixedly connected to the pressure rod and connected to the piston column. The piston column is sealed and slidably inserted in the oil storage box 2. The push-pull device pushes the piston column to slide in the oil storage box 2 to squeeze out the welding oil in the oil storage box 1 and the oil storage box 2 from the oil overflow hole and apply it to the surface of the compacting section; The lower end of the oil storage box is recessed inward to form a groove, and a slide groove connected to the threading hole is arranged on the groove. The slide groove extends axially along the threading hole. A lever is arranged in the groove, and one end of the lever passes through the slide groove and is fixedly connected to the smoothing frame. The lever is slidably connected to the slide groove.

[0015] Beneficial effects: The cutting, welding and assembly equipment of the relay assembly of the present application can realize the automatic cutting of copper wires and the automatic assembly and welding of copper wires, static reed assemblies and moving reeds, without the need for manual auxiliary welding and cutting, with fast welding speed, high efficiency, good welding quality and stable welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0017] Figure 1 The structure of the cutting, welding and assembling equipment of a relay assembly of the present invention is shown in FIG. Figure 1 ; Figure 2 yes Figure 1 A magnified view of part A in FIG. Figure 3 The structure of the cutting, welding and assembling equipment of a relay assembly of the present invention is shown in FIG. Figure 2 ; Figure 4 The structure of the cutting, welding and assembling equipment of a relay assembly of the present invention is shown in FIG. Figure 3 ; Figure 5 yes Figure 4 A magnified view of part B in FIG. Figure 6 The structure of the cutting, welding and assembling equipment of a relay assembly of the present invention is shown in FIG. Figure 4 ; Figure 7 The structure of the cutting, welding and assembling equipment of a relay assembly of the present invention is shown in FIG. Figure 5 ; Figure 8 It is a schematic diagram of the structure of a cutting, welding and assembling device of a relay assembly of the present invention after an oiling mechanism is added; Fig. 9 The internal structure of the oiling mechanism of the present invention is Figure 1 ; Fig.10 The internal structure of the oiling mechanism of the present invention is Figure 2 ; Fig.11 It is a component diagram of a certain part of the internal structure of a relay.

[0018] The following are the descriptions of the reference numerals: 1. Machine 1; 2. Welding assembly mechanism 2; 21. Rotating platform 1; 22. Transverse moving device 1; 23. Lifting device 1; 24. Rotating device 1; 25. Automatic gripper 1; 26. Carrier 1; 27. Vibrating feeding device 1; 28. Transverse moving device 2; 29. ​​Lifting device 2; 210. Rotating device 2; 211. Automatic gripper 2; 212. Welding device 1; 213. Lifting device 3; 214. Transverse moving device 3; 215. Lifting device 4; 216. Automatic gripper 3; 217. Lower hopper; 3. Tensioning mechanism; 31. Frame 1; 32. Fixed pulley; 33. Moving pulley; 34. Lifting device 5; 4. Hot pressing mechanism; 41. Machine platform 2; 42. Right pressure block; 43. Transverse moving device 4; 44. Left pressure block; 45. Lower pressure block 1; 46. Upper pressure block; 47. Lifting device 6; 5. Push wire mechanism; 51. Sliding block; 52. Threading groove 1; 53. Lifting device 7; 54. Transverse moving device 5; 55. Lower pressing block 2; 6. Cutting mechanism; 61. Frame 2; 62. Transverse moving device 6; 63. Lifting device 8; 64. Lower pressure block 3; 65. Pressure block; 66. Threading slot 2; 67. Cutting knife; 7. Oiling mechanism; 71. Oil storage box 1; 72. Oil storage box 2; 73. Threading hole; 74. Oil overflow hole; 75. Smoothing frame; 76. Inclined surface; 77. Groove; 78. Slideway; 79. Push rod; 710. Push-pull device; 711. Piston column; 8. Welding assembly mechanism 1; 81. Rotating platform 2; 82. Carrier 2; 83. Transverse moving device 7; 84. Lifting device 9; 85. Suction nozzle; 86. Vibrating feeding device 2; 87. Automatic gripper 4; 88. Through hole; 89. Welding device 2; 810. Lifting device 10; 811. Welding head; 9. Static spring assembly; 10. Wire drum; 11. Moving spring; 12. Pressure rod; 13. Copper wire; 14. Motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] The present invention proposes a cutting, welding and assembling device for a relay assembly. The cutting, welding and assembling device for the relay assembly can realize automatic cutting of a copper wire 13 and automatic assembly and welding of the copper wire 13, a static spring assembly 9 and a movable spring 11. Manual auxiliary welding and cutting are not required, and the welding speed is fast, the efficiency is high, the welding quality is good, and the welding quality is stable.

[0021] Specifically, in one embodiment of the invention, Figure 1-Figure 8 As shown, the cutting, welding and assembling equipment of the relay assembly includes a machine 1 and a wire reel 10, a wire pushing mechanism 5, a cutting mechanism 6, a welding assembly mechanism 1 8 and a welding assembly mechanism 2 2 arranged on the machine 1; a bare copper wire 13 is wound on the wire reel 10, the wire pushing mechanism 5 is used to pull the unfolded copper wire 13 and move along the length direction of the copper wire 13 so that the copper wire 13 on the wire reel 10 is continuously unfolded, the cutting mechanism 6 is used to cut the copper wire 13 into segments, and the length of each copper wire segment is freely set according to actual needs, the welding assembly mechanism 1 8 is used to weld the static spring assembly 9 to one end of the copper wire segment, and the welding assembly mechanism 2 2 is used to weld the moving spring 11 to the other end of the copper wire segment.

[0022] Specifically, in one embodiment of the invention, Figure 3-Figure 6 As shown, the welding assembly mechanism 8 includes: a rotating platform 81, a vibrating feeding device 86, a material transfer device 8, an automatic clamp 87, and a lifting device 810. The rotating platform 81 is arranged on the machine 1, and a plurality of carriers 82 for placing static spring assemblies 9 are arranged on the rotating platform 81. The rotating platform 81 drives the plurality of carriers 82 to rotate around the vertical axis; the vibrating feeding device 86 is arranged on the machine 1, and is used to convey the static spring assembly 9 to the rotating platform 81; the vibrating plate feeding has long been common knowledge, so this article will not elaborate on the structure of the vibrating feeding device 86 and the vibrating feeding device 27 in detail. The material transfer device 2 is arranged on the machine 1, and is used to place the static spring assembly 9 conveyed by the vibrating feeding device 86 on the carrier 82.

[0023] Specifically, Figure 6 As shown, the material transfer device 2 includes: a transverse moving device 7 83, a lifting device 9 84 and a suction nozzle 85, the transverse moving device 7 83 is arranged on the machine platform 1; the lifting device 9 84 is connected to the transverse moving device 7 83, and the lifting device 9 84 is driven to move horizontally through the transverse moving device 7 83; the suction nozzle 85 is connected to the lifting device 9 84, and the suction nozzle 85 is driven to move up and down through the lifting device 9 84; the suction nozzle 85 is driven by the transverse moving device 7 83 and the lifting device 9 84 to absorb the static spring assembly 9 delivered by the vibration feeding device 2 86, and then places the static spring assembly 9 on the carrier 2 82.

[0024] In this embodiment, if Figure 5 As shown, the automatic clamp four 87 is fixedly connected to the machine, and the automatic clamp four 87 can clamp and fix the head of the unfolded copper wire 13. A through hole 88 is provided on the claw of the automatic clamp four 87. The head of the copper wire 13 is located directly below the through hole 88 and above the rotating platform two 81. The rotating platform two 81 can drive the static spring assembly 9 on the carrier two 82 to rotate to directly below the through hole 88 and the head of the copper wire 13.

[0025] In this embodiment, if Figure 4 and Figure 5 As shown, the lifting device ten 810 is fixedly connected to the machine platform, and the lower end of the lifting device ten 810 is connected to the welding device two 89, and the welding device two 89 is lifted and lowered by the lifting device ten 810. The welding device two 89 has a welding head 811. The welding device two 89 descends and drives the welding head 811 to descend through the through hole 88 to push the head of the copper wire 13 to descend (before the welding head 811 descends and passes through the through hole 88 to contact the copper wire 13, the automatic clamp four 87 is controlled to be loosened) to contact the static spring assembly 9 on the carrier two 82 and be welded.

[0026] In this embodiment, if Figure 7 As shown, the welding assembly mechanism 2 comprises: a rotating platform 21, a material transfer device 3, a vibrating material feeding device 27, a material transfer device 1, a lifting device 3 213, and a material transfer device 4. The rotating platform 21 is arranged on the machine 1, and a plurality of carriers 26 for placing the moving spring pieces 11 are arranged on the rotating platform 21. The rotating platform 21 drives the plurality of carriers 26 to rotate around the vertical axis. The material transfer device 3 is arranged on the machine 1, and is used to place the static spring piece assembly 9 and the copper wire segment welded together on the carrier 2 82 onto the carrier 26. Specifically, as Figure 7 As shown, the material transfer device 3 includes: a transverse moving device 22, a lifting device 23, a rotating device 24, and a pair of automatic clamps 25. The transverse moving device 22 is arranged on the machine platform 1; the lifting device 23 is connected to the transverse moving device 22, and the lifting device 23 is driven to move horizontally through the transverse moving device 22; the rotating device 24 is connected to the lifting device 23, and the rotating device 24 is driven to move up and down through the lifting device 23; a pair of automatic clamps 25 are connected to the rotating device 24, and the pair of automatic clamps 25 are driven to rotate around the vertical axis through the rotating device 24; the automatic clamps 25 are driven by the transverse moving device 22, the lifting device 23, and the rotating device 24 to clamp the welded static spring assembly 9 and the copper wire segment on the carrier 2 82, and then place them on the carrier 26.

[0027] In this embodiment, if Figure 7As shown, the vibration feeding device 27 is arranged on the machine 1, and is used to convey the moving spring piece 11 to the rotating platform 21. The material transfer device 1 is arranged on the machine 1, and is used to place the moving spring piece 11 conveyed by the vibration feeding device 27 on the carrier 26, and make the moving spring piece 11 contact with the other end of the copper wire segment; specifically, as Figure 7 As shown, the material moving device 1 includes: a transverse moving device 28, a lifting device 29, a rotating device 210, and an automatic clamp 211. The transverse moving device 28 is arranged on the machine platform 1; the lifting device 29 is connected to the transverse moving device 28, and the lifting device 29 is driven to move horizontally by the transverse moving device 28; the rotating device 210 is connected to the lifting device 29, and the rotating device 210 is driven to move up and down by the lifting device 29; the automatic clamp 211 is connected to the rotating device 210, and the automatic clamp 211 is driven by the rotating device 210. Claw 211 rotates around the vertical axis; the automatic clamping claw 211, driven by the transverse device 28, the lifting device 29 and the rotating device 210, clamps the movable spring 11 delivered by the vibrating feeding device 27, and then places it at a specified position on the carrier 26. Since the static spring assembly 9 and the copper wire segment have been placed on the carrier 26 in advance, the movable spring 11 is directly in contact with the other end of the copper wire segment after being placed at the specified position on the carrier 26. Subsequently, it is only necessary to weld the movable spring 11 and the other end of the copper wire segment to connect them.

[0028] In this embodiment, if Figure 7 As shown, the lifting device three 213 is fixedly connected to the machine platform, and the lower end of the lifting device three 213 is connected to the welding device one 212. The lifting device three 213 drives the welding device one 212 to descend and rotates to the moving spring piece 11 on the carrier one 26 directly below the welding device one 212 and welds the other end of the copper wire segment.

[0029] In this embodiment, if Figure 7 As shown, the material moving device 4 is arranged on the machine platform 1, and is used to move the welded movable spring piece 11 from the carrier 26. Specifically, the material moving device 4 includes: a transverse moving device 3 214, a lifting device 4 215, and an automatic clamp 3 216. The transverse moving device 3 214 is arranged on the machine platform 1; the lifting device 4 215 is connected to the transverse moving device 3 214, and the lifting device 4 215 is driven to move horizontally by the transverse moving device 3 214; the automatic clamp 3 216 is connected to the lifting device 4 215, and the automatic clamp 3 216 is driven to move up and down by the lifting device 4 215; a discharge hopper 217 fixedly connected to the machine platform 1 is arranged on the side of the material moving device 4, and the automatic clamp 3 216 clamps the welded movable spring piece 11 on the carrier 26 under the drive of the transverse moving device 3 214 and the lifting device 4 215, and places the movable spring piece 11 into the discharge hopper 217 to complete the discharge.

[0030] In this embodiment, specifically, Figure 1-Figure 5 As shown, the cutting mechanism 6 includes: a frame 2 61, a lifting device 8 63, a lower pressure block 3 64, a pressure block 65, and a transverse device 62. The frame 2 61 is horizontally slidably connected to the machine platform 1; the lifting device 8 63 is fixedly connected to the frame 2 61; the lower pressure block 3 64 is vertically slidably connected to the frame 2 61 and is connected to the lifting device 8 63. The lower pressure block 3 64 is lifted and lowered by the lifting device 8 63. A cutting knife 67 is arranged on the lower pressure block 3 64; the pressure block 65 is located directly below the lower pressure block 3 64 and is fixedly connected to the frame 2 61. The upper surface of the pressing block 65 is provided with a second threading groove 66 extending along the length direction of the unfolded copper wire 13. The unfolded copper wire 13 passes through the second threading groove 66 under the drive of the wire pushing mechanism 5 and slides in the second threading groove 66 until the automatic clamping claw 4 87 clamps the head of the copper wire 13 and fixes it. The cutting knife 67 descends to cut the copper wire 13 in the threading groove 66; the transverse movement device 6 62 is fixedly connected to the machine platform 1 and to the frame 2 61, and is used to drive the frame 2 61 to move horizontally along the length direction of the unfolded copper wire 13, and then adjust the cutting length of the copper wire segment.

[0031] In this embodiment, if Figure 3 As shown, the wire pushing mechanism 5 includes: a slider 51, a transverse moving device 54, and a lower pressing block 55. The slider 51 is horizontally slidably connected to the machine platform 1, and the slider 51 is provided with a threading groove 52 extending along the length direction of the unfolded copper wire 13; the transverse moving device 54 is fixedly connected to the machine platform 1 and connected to the slider 51, and is used to push the slider 51 to move horizontally along the length direction of the unfolded copper wire 13; the lower pressing block 55 is located directly above the slider 51 and is connected to the lifting device 7 53. The lifting device 7 53 drives the lower pressing block 55 to descend and press the copper wire 13 to be fixed in the threading groove 52. The lifting device 7 53 is fixedly connected to the slider 51. With this design, when the slider 51 moves horizontally along the length direction of the unfolded copper wire 13, the slider 51 can pull the copper wire 13 to move synchronously, and when the lower pressing block 2 55 does not contact the copper wire 13, the copper wire 13 can slide in the threading groove 52.

[0032] In this embodiment, a cutting, welding, and assembling device for a relay assembly further includes a tensioning mechanism 3, such as Figure 8As shown, the tensioning mechanism 3 is used to tension the copper wire 13 unfolded from the wire drum 10, and the unfolded copper wire 13 enters the wire pushing mechanism 5 after being tensioned. Specifically, the tensioning mechanism 3 includes: a frame 31 and a lifting device 5 34. The frame 31 is fixedly connected to the machine platform 1, and a fixed pulley 32 and a movable pulley 33 are provided on the frame 31. The copper wire 13 unfolded from the wire drum 10 is wound around the fixed pulley 32 and the movable pulley 33; the lifting device 5 34 is fixedly connected to the frame 31 and connected to the movable pulley 33, and is used to push the movable pulley 33 to move to tension the copper wire 13.

[0033] In this embodiment, if Figure 8 As shown, a cutting, welding and assembling device for a relay assembly also includes a hot pressing mechanism 4. The unrolled copper wire 13 enters the hot pressing mechanism 4 for hot pressing after being tensioned, and the hot pressed copper wire 13 enters the wire pushing mechanism 5; the hot pressing mechanism 4 is used to hot press a plurality of compact sections on the copper wire 13 at intervals, and the cutting mechanism 6 cuts the copper wire 13 into a plurality of copper wire sections by cutting the compact sections; such a design facilitates welding, because the copper wire 13 is formed by winding a plurality of thin copper wires, and if it is directly cut into sections, the copper wire The multiple strands of fine copper wires at both ends of the segment are scattered, which is inconvenient to weld and affects the welding quality. After the hot pressing mechanism 4 is set, multiple compact segments are hot-pressed at intervals on the copper conductor 13 by the hot pressing mechanism 4, and then the cutting knife 67 cuts the copper conductor 13 at the compact segment. The multiple strands of fine copper wires in the compact segment are heated, softened and pasted together to form an integrated structure. Therefore, after cutting the copper conductor 13 at the compact segment, the multiple strands of fine copper wires at both ends of the obtained copper conductor segment are still pasted together to form an integrated structure, which is convenient for welding, and the welding quality is good and stable.

[0034] Specifically, Figure 1 and Figure 2As shown, the hot pressing mechanism 4 includes: a machine platform 2 41, a transverse moving device 43, and an upper pressing block 46. The machine platform 2 41 is fixedly connected to the machine platform 1. The machine platform 2 41 is provided with a left pressing block 44, a right pressing block 42, and a lower pressing block 1 45. The left pressing block 44 and the right pressing block 42 are arranged at intervals. The lower pressing block 1 45 is located below the left pressing block 44 and the right pressing block 42. The right pressing block 42 is slidably connected to the machine platform 2 41; the transverse moving device 43 is fixedly connected to the machine platform 2 41 and is connected to the right pressing block 42, and is used to drive the right pressing block 42 to move horizontally close to or away from the left pressing block 44; the upper pressing block 46 is located directly above the lower pressing block 1 45 and is connected to the lifting device 6 47 , the upper pressing block 46 is driven to descend by the lifting device six 47, and the lifting device six 47 is fixedly connected to the machine platform two 41; the copper wire 13 passes between the left pressing block 44 and the right pressing block 42, and the right pressing block 42 moves horizontally close to the left pressing block 44 to clamp the copper wire 13 left and right, and the upper pressing block 46 descends close to the lower pressing block one 45 to clamp the copper wire 13 up and down; the left pressing block 44, the right pressing block 42, the lower pressing block one 45, and the upper pressing block 46 are provided with a heating device, and the copper wire 13 is heated by the heating device to soften the copper wire in the copper wire 13, and then the copper wire is adhered to each other as a whole under the extrusion of the left pressing block 44, the right pressing block 42, the lower pressing block one 45, and the upper pressing block 46.

[0035] Working principle: When the cutting, welding and assembling equipment of a relay assembly of this embodiment is working, Figure 3 As shown, the wire drum 10 is connected to the motor 14, and the motor 14 drives the wire drum 10 to rotate to unfold the copper wire 13 wound thereon. The unfolded copper wire 13 is as shown in FIG. Figure 8As shown, the copper wire 13 is tensioned by the tensioning mechanism 3, the hot pressing mechanism 4, the wire pushing mechanism 5, and the cutting mechanism 6 in sequence. The copper wire 13 is tensioned by the tensioning mechanism 3, and the hot pressing mechanism 4 heat-presses multiple compact sections on the copper wire 13 at intervals. Since the copper wire 13 is soft in texture, it is difficult to drive the unfolded copper wire 13 to move stably and reliably only by rotating the wire reel 10. Therefore, a wire pushing mechanism 5 is provided. The wire pushing mechanism 5 continues to move while clamping the unfolded copper wire 13, so that the copper wire 13 stably enters the cutting mechanism 6. Specifically, the wire pushing mechanism 5 continues to move while clamping the unfolded copper wire 13, so that the copper wire 13 moves forward in the threading groove 66 until the head of the unfolded copper wire 13 is penetrated. The threading groove 66 is close to the automatic clamping claw 4 87, and then the automatic clamping claw 4 87 is controlled to clamp the head of the unfolded copper wire 13. At this time, the motor 14 stops rotating, the wire pushing mechanism 5 releases the clamping of the copper wire 13 and resets, waiting for the next clamping of the copper wire 13 to continue to move. After the wire pushing mechanism 5 releases the clamping of the copper wire 13, the copper wire 13 can also slide in the threading groove 1 52, and then the pressing block 3 64 descends to clamp the copper wire 13 in the threading groove 2 66. At the same time, the cutting knife 67 descends to cut off the copper wire 13 at the compact section to obtain a copper wire segment. One end of the copper wire segment is clamped by the automatic clamping claw 4 87, and then as shown in Figure 5 As shown, the welding device 2 89 descends to press one end of the copper wire segment to contact the static spring assembly 9 and weld it to be fixed. The static spring assembly 9 is fed by the vibrating feeding device 2 86. After the static spring assembly 9 is welded, the rotating platform 2 81 drives the welded static spring assembly 9 and the copper wire segment to rotate to the moving device 3. The moving device 3 moves the welded static spring assembly 9 and the copper wire segment from the carrier 2 82 to the carrier 1 26, and then the vibrating feeding device 1 27 supplies the moving spring 11. The moving device 1 places the moving spring 11 on the carrier 1 26 and connects it to the other end of the copper wire segment. The moving spring 11 is touched, and then the welding device 212 welds the moving spring 11 and the other end of the copper wire segment to be fixedly connected. Finally, the material moving device 212 removes the welded moving spring 11, the copper wire segment, and the static spring assembly 9 from the carrier 26 and places them on the unloading hopper 217 for unloading. During the whole process, the cutting and welding of the copper wire segment, the assembly of the moving spring 11 and the static spring assembly 9 all realize the automatic cutting of the copper wire 13 and the automatic assembly and welding of the copper wire 13, the static spring assembly 9, and the moving spring 11. There is no need for manual auxiliary welding and cutting, and the welding speed is fast, the efficiency is high, the welding quality is good, and the welding quality is stable.

[0036] Preferably, the copper wire 13 is cut in the middle of the compact section, so that both ends of the obtained copper wire section have compact sections of equal length, which is conducive to welding and improves welding quality.

[0037] Furthermore, in this embodiment, if Figure 8As shown, a cutting, welding and assembling device for relay components also includes an oiling mechanism 7, and the oiling mechanism 7 is used to apply welding oil on the compact section before the cutting knife 67 cuts the copper wire 13. This design can further improve the welding quality.

[0038] Specifically, Figure 8-Figure 10 As shown, the oiling mechanism 7 includes: a pressure rod 12, an oil storage box 1 71, a spreading frame 75, an oil storage box 2 72, and a push-pull device 710. Figure 5 As shown, the pressure rod 12 is located between the automatic clamping jaw 4 87 and the pressure block 65, above the carrier 2 82, and is fixedly connected to the machine 1. The head of the copper wire 13 passes through the bottom of the pressure rod 12 and approaches the automatic clamping jaw 4 87; Figure 8-Figure 10 As shown, the oil storage box 71 is detachably fixedly connected to the pressure rod 12, and the oil storage box 71 is provided with a threading hole 73 coaxial with the unfolded copper wire 13, and the unfolded copper wire 13 can pass through the threading hole 73. The cross section of the threading hole 73 is rectangular, and the hole wall of the threading hole 73 is provided with an oil overflow hole 74; the smoothing frame 75 is located in the threading hole 73, and is coaxial with the threading hole 73, and is close to the hole wall of the threading hole 73 along the axial direction of the threading hole 73 The outer wall of the compacting section slides closely against the inner wall of the smoothing frame 75. With this design, the smoothing frame 75 can be used to evenly apply the welding oil on the surface of the compacting section. The end surface of the smoothing frame 75 close to the pressure block 65 is an inclined surface 76. One end of the inclined surface 76 is located on the inner wall of the smoothing frame 75, and the other end of the inclined surface 76 is located on the hole wall of the threading hole 73. With this design, the smoothing frame 75 can be prevented from hanging the welding oil on the surface of the compacting section. The oil storage box 72 The push-pull device 710 is located above the pressure rod 12 and is connected to the oil storage box 1 71. The oil storage box 1 71 and the oil storage box 2 72 both store welding oil. The push-pull device 710 is fixedly connected to the pressure rod 12 and connected to the piston column 711. The piston column 711 is sealed and slidably inserted in the oil storage box 2 72. The push-pull device 710 pushes the piston column 711 to slide in the oil storage box 2 72 to squeeze the welding oil in the oil storage box 1 71 and the oil storage box 2 72 out of the oil overflow hole 74 and apply it to the surface of the compacting section. Then the copper wire 13 continues to move, and the welding oil on the surface of the compacting section is evenly applied by the smearing frame 75, thereby improving the welding quality. The lower end of the oil storage box 1 71 is recessed inward to form a groove 77. The design of the groove 77 is convenient for setting a lever 79 to move the smearing frame 75 axially to block the oil overflow hole 74, thereby sealing the welding oil in the oil storage box 1 71 and the oil storage box 2 72 when the oiling mechanism 7 is not used for a long time, so as to extend the life of the welding oil. Fig.10As shown, the groove 77 is provided with a slide groove 78 connected to the threading hole 73, and the slide groove 78 extends axially along the threading hole 73. A lever 79 is provided in the groove 77, one end of the lever 79 passes through the slide groove 78 and is fixedly connected to the smearing frame 75, and the lever 79 is slidably connected to the slide groove 78. The oil storage box 1 71 and the oil storage box 2 72 are designed as an integral whole and are detachably fixed to the pressure rod 12. After the oil storage box 1 71 and the oil storage box 2 72 are installed on the pressure rod 12, the lever 79 is driven to drive the smearing frame 75 to move axially to open the oil overflow hole 74, and then the oiling work can be carried out. On the contrary, the smearing frame 75 of the oil storage box 1 71 that is not installed on the pressure rod 12 will still block the oil overflow hole 74 to seal the welding oil in the oil storage box 1 71 and the oil storage box 2 72, thereby extending the service life of the welding oil.

[0039] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cutting, welding and assembling device for relay components, characterized in that: It includes a machine platform 1 and a wire reel, a wire pushing mechanism, a cutting mechanism, a welding assembly mechanism 1 and a welding assembly mechanism 2 arranged on the machine platform 1; The wire drum is wound with a copper wire, the wire pushing mechanism is used to pull the unfolded copper wire to move along the length direction of the copper wire, the cutting mechanism is used to cut the copper wire into segments, the first welding assembly mechanism is used to weld the static spring assembly to one end of the copper wire segment, and the second welding assembly mechanism is used to weld the dynamic spring to the other end of the copper wire segment; The welding assembly mechanism 1 comprises: A second rotating platform is arranged on the first machine platform, and a plurality of carriers for placing the static spring assembly are arranged on the second rotating platform. The second rotating platform drives the plurality of carriers to rotate around the vertical axis; The second vibration feeding device is arranged on the first machine platform and is used to convey the static spring assembly to the second rotating platform; The second material transfer device is arranged on the first machine platform and is used to place the static spring sheet assembly delivered by the second vibration feeding device onto the second carrier; The fourth automatic clamp is fixedly connected to the machine platform, and the fourth automatic clamp can clamp and fix the head of the unfolded copper wire. The claw of the fourth automatic clamp is provided with a through hole, and the head of the copper wire is located directly below the through hole and above the second rotating platform. The second rotating platform can drive the static spring assembly on the second carrier to rotate to directly below the through hole and the head of the copper wire. A lifting device 10 is fixedly connected to the machine platform. The lower end of the lifting device 10 is connected to the welding device 2. The lifting device 10 drives the welding device 2 to rise and fall. The welding device 2 has a welding head. The welding device 2 is lowered to drive the welding head to descend and penetrate the through hole to push the head of the copper wire to descend and contact with the static spring assembly on the carrier 2 and be welded together. The welding assembly mechanism 2 comprises: A rotating platform 1 is arranged on the machine platform 1, and a plurality of carriers 1 for placing the movable spring sheets are arranged on the rotating platform 1, and the rotating platform 1 drives the plurality of carriers 1 to rotate around the vertical axis; The material transfer device 3 is arranged on the machine platform 1 and is used to place the static spring assembly and the copper wire segment welded together on the carrier 2 onto the carrier 1; A vibration feeding device 1, arranged on a machine platform 1, for conveying a moving spring sheet to a rotating platform 1; A material transfer device 1 is provided on a machine platform 1 and is used to place the movable spring piece conveyed by the vibration feeding device 1 on a carrier 1 and make the movable spring piece contact with the other end of the copper wire segment; The lifting device 3 is fixedly connected to the machine platform, and the lower end of the lifting device 3 is connected to the welding device 1. The lifting device 3 drives the welding device 1 to descend and welds the moving spring piece on the carrier 1 that is rotated directly below the welding device 1 to the other end of the copper wire segment; The material moving device 4 is arranged on the machine platform 1 and is used to move the welded movable spring piece away from the carrier 1.

2. A cutting, welding and assembling device for relay components as claimed in claim 1, characterized in that: The second material transfer device comprises: A transverse moving device 7 is arranged on the machine platform 1; The lifting device nine is connected to the transverse moving device seven, and drives the lifting device nine to move horizontally through the transverse moving device seven; The suction nozzle is connected to the lifting device nine, and the suction nozzle is driven to rise and fall through the lifting device nine; The suction nozzle, driven by the transverse moving device seven and the lifting device nine, sucks the static spring sheet assembly delivered by the vibration feeding device two and places it on the carrier two.

3. A cutting, welding and assembling device for relay components as claimed in claim 1, characterized in that: The material transfer device 3 comprises: A transverse moving device 1 is arranged on a machine platform 1; The lifting device 1 is connected to the transverse moving device 1, and the lifting device 1 is driven to move horizontally by the transverse moving device 1; The rotating device 1 is connected to the lifting device 1, and the lifting device 1 drives the rotating device 1 to rise and fall; A pair of automatic grippers 1 are connected to a rotating device 1, and the rotating device 1 drives the pair of automatic grippers 1 to rotate around a vertical axis; The automatic clamping claw 1, driven by the transverse moving device 1, the lifting device 1 and the rotating device 1, clamps the welded static spring sheet assembly and the copper wire segment on the carrier 2 and places them on the carrier 1.

4. A cutting, welding and assembling device for relay components as claimed in claim 1, characterized in that: The material transfer device 1 comprises: The second transverse moving device is arranged on the first machine platform; The lifting device 2 is connected to the transverse moving device 2, and drives the lifting device 2 to move horizontally through the transverse moving device 2; The second rotating device is connected to the second lifting device, and the second lifting device drives the second rotating device to rise and fall; The second automatic gripper is connected to the second rotating device, and the second automatic gripper is driven to rotate around the vertical axis through the second rotating device; Driven by the second transverse moving device, the second lifting device and the second rotating device, the second automatic clamping claw clamps the moving spring sheet conveyed by the first vibration feeding device and places it on the first carrier, and makes the moving spring sheet contact with the other end of the copper wire segment.

5. The cutting, welding and assembling equipment of a relay assembly as claimed in claim 1, characterized in that: The material transfer device 4 comprises: A third traverse device is arranged on the first machine platform; The lifting device 4 is connected to the transverse moving device 3, and drives the lifting device 4 to move horizontally through the transverse moving device 3; The automatic gripper three is connected to the lifting device four, and the lifting device four drives the automatic gripper three to rise and fall; A lower hopper fixedly connected to the machine platform is arranged on the four sides of the material moving device. Driven by the transverse moving device three and the lifting device four, the automatic clamp three clamps the welded movable spring sheet on the carrier one and places it in the lower hopper.

6. A cutting, welding and assembling device for relay components as claimed in claim 1, characterized in that: The cutting mechanism comprises: The frame 2 is horizontally slidably connected with the machine platform 1; A lifting device eight is fixedly connected to the frame two; The lower pressing block 3 is vertically slidably connected to the frame 2 and is connected to the lifting device 8. The lower pressing block 3 is pushed up and down by the lifting device 8. The lower pressing block 3 is provided with a cutting knife. The pressure block is located directly below the lower pressure block 3 and is fixedly connected to the frame 2. The upper surface of the pressure block is provided with a threading groove 2 extending along the length direction of the unfolded copper wire. The unfolded copper wire passes through the threading groove 2 under the drive of the wire pushing mechanism and slides in the threading groove 2 until the automatic clamping claw 4 clamps the head of the copper wire and fixes it. The cutting knife descends to cut off the copper wire in the threading groove 2. The transverse moving device 6 is fixedly connected to the machine platform 1 and connected to the frame 2, and is used to drive the frame 2 to move horizontally along the length direction of the unfolded copper wire.

7. A cutting, welding and assembling device for relay components as claimed in claim 6, characterized in that: The wire pushing mechanism comprises: A slider is horizontally slidably connected to the machine platform, and the slider is provided with a threading groove extending along the length direction of the unfolded copper wire; The traverse device 5 is fixedly connected to the machine platform 1 and connected to the slider, and is used to push the slider to move horizontally along the length direction of the unfolded copper wire; The pressing block 2 is located directly above the slider and is connected to the lifting device 7. The lifting device 7 drives the pressing block 2 to descend to press and fix the copper wire in the wire threading groove 1. The lifting device 7 is fixedly connected to the slider. When the pressing block 2 is not in contact with the copper wire, the copper wire can slide in the wire threading groove 1.

8. A cutting, welding and assembling device for relay components as claimed in claim 7, characterized in that: It also includes a tensioning mechanism, which is used to tension the copper wire unrolled from the wire reel, and the unrolled copper wire enters the wire pushing mechanism after being tensioned; The tensioning mechanism comprises: A frame 1 is fixedly connected to the machine platform 1, and a fixed pulley and a movable pulley are arranged on the frame 1, and the copper wire unwound from the wire drum is wound around the fixed pulley and the movable pulley; The lifting device five is fixedly connected to the frame one and is connected to the movable pulley, and is used for pushing the movable pulley to move and tension the copper wire.

9. A cutting, welding and assembling device for relay components as claimed in claim 8, characterized in that: The copper wire is also provided with a hot pressing mechanism. After being stretched, the copper wire is put into the hot pressing mechanism for hot pressing. After the hot pressing, the copper wire is put into the wire pushing mechanism. The hot pressing mechanism is used to hot press a plurality of compact sections on the copper wire at intervals, and the cutting mechanism cuts the copper wire into a plurality of copper wire sections by cutting the compact sections; The hot pressing mechanism comprises: Machine platform 2 is fixedly connected to machine platform 1. A left pressing block, a right pressing block and a lower pressing block 1 are arranged on machine platform 2. The left pressing block and the right pressing block are arranged at intervals. The lower pressing block 1 is located below the left pressing block and the right pressing block. The right pressing block is slidably connected to machine platform 2. The transverse moving device 4 is fixedly connected to the machine table 2 and connected to the right pressing block, and is used to drive the right pressing block to move horizontally toward or away from the left pressing block; The upper pressing block is located directly above the lower pressing block 1 and is connected to the lifting device 6. The upper pressing block is driven down by the lifting device 6. The lifting device 6 is fixedly connected to the machine platform 2. The copper wire passes through the left pressing block and the right pressing block, the right pressing block moves horizontally close to the left pressing block to clamp the copper wire left and right, and the upper pressing block descends close to the lower pressing block to clamp the copper wire up and down; The left pressing block, the right pressing block, the lower pressing block 1 and the upper pressing block are provided with heating devices, which heat the copper wires to soften the copper wires in the copper wires, and then the copper wires are adhered to each other as a whole under the extrusion of the left pressing block, the right pressing block, the lower pressing block 1 and the upper pressing block.

10. A cutting, welding and assembling device for relay components as claimed in claim 9, characterized in that: It also includes an oiling mechanism, which is used to apply welding oil on the compact section before the cutting knife cuts the copper wire; The oiling mechanism comprises: The pressure rod is located between the automatic clamping jaw 4 and the pressure block, above the carrier 2, and is fixedly connected to the machine platform 1. The head of the copper wire passes through the bottom of the pressure rod and approaches the automatic clamping jaw 4. The oil storage box is detachably fixedly connected to the pressure rod, and the oil storage box is provided with a threading hole coaxial with the unfolded copper wire, and the unfolded copper wire can pass through the threading hole. The cross section of the threading hole is rectangular, and an oil overflow hole is provided on the hole wall of the threading hole; The smoothing frame is located in the threading hole and is coaxial with the threading hole. It is close to the hole wall of the threading hole and slides along the axial direction of the threading hole. The outer wall of the compacting section slides close to the inner wall of the smoothing frame. The end surface of the smoothing frame close to the pressure block is an inclined surface. One end of the inclined surface is located on the inner wall of the smoothing frame, and the other end of the inclined surface is located on the hole wall of the threading hole. The oil storage box 2 is located above the pressure rod and is connected to the oil storage box 1. The oil storage box 1 and the oil storage box 2 both store welding oil. A push-pull device is fixedly connected to the pressure rod and connected to the piston column. The piston column is sealed and slidably inserted in the oil storage box 2. The push-pull device pushes the piston column to slide in the oil storage box 2 to squeeze out the welding oil in the oil storage box 1 and the oil storage box 2 from the oil overflow hole and apply it to the surface of the compacting section; The lower end of the oil storage box is recessed inward to form a groove, and a slide groove connected to the threading hole is arranged on the groove. The slide groove extends axially along the threading hole. A lever is arranged in the groove, and one end of the lever passes through the slide groove and is fixedly connected to the smoothing frame. The lever is slidably connected to the slide groove.

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