An adjustable coil welding fixture

Abstract

The present invention belongs to the technical field of welding jigs, and in particular, relates to an adjustable coil welding jig, comprising a base, a drive box disposed on the upper surface of the base, a drive assembly disposed in the drive box, a support tube installed on the right side of the drive box, and a flexible adjustment mechanism disposed on the support tube, the flexible adjustment mechanism being used for limiting and supporting coils of different diameters sleeved on the support tube, a pin clamping mechanism being movably disposed on the upper surface of the base, the pin clamping mechanism being used for clamping pins to be welded so that they can be accurately contacted and welded with the coils; the present invention can realize the flexible support and fixing of the coil to the support tube, not only does not cause clamping deformation to the coil, but the flexible adjustment mechanism can also adjust its annular diameter, so that the coils of different diameters can be flexibly supported against each other, and the welding jig can realize the adjustable support welding of coils of different diameters.

Description

Technical Field

[0001] The invention belongs to the technical field of welding jigs, and in particular relates to an adjustable coil welding jig. Background Art

[0002] A fixture is a large category of tools used in carpentry, ironwork, fitter, machinery, electronic control and some other handicrafts. It is mainly used as a tool to assist in controlling position or movement.

[0003] Since the connection between coils and pins mostly requires the cooperation of welding jigs to achieve precise welding processing; when performing pin welding processing on thin coils of different diameters, on the one hand, it is difficult for existing welding jigs to adjust, support and limit coils of different diameters, so that it can only limit and support coils of one specification; on the other hand, most existing welding jigs provide rigid clamping supports for coils, which can easily cause thin coils to be squeezed and deformed when installed on the welding jig, thereby affecting the accuracy of coil and pin welding, and also affecting the welding quality. Summary of the invention

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention discloses an adjustable coil welding jig, comprising a base, a driving box arranged on the upper surface of the base, and a driving assembly arranged in the driving box. A supporting tube is installed on the right side of the driving box, and a flexible adjusting mechanism is arranged on the supporting tube. The flexible adjusting mechanism is used to provide limited support for coils of different diameters sleeved on the supporting tube. A pin clamping mechanism is movably arranged on the upper surface of the base. The pin clamping mechanism is used to clamp the pins to be welded so that the pins can be accurately contacted with the coils for welding.

[0006] Furthermore, the flexible adjustment mechanism includes an air guide main pipe, a guide slide tube, an air guide tube, a push column, a sealing plug, a support spring, an arc plate and a silicone annular ring. The air guide main pipe is inserted into the left end of the support tube, and the right end thereof is sealed. At least four guide slide tubes are installed in a circular array inside the support tube, and the bottom of each guide slide tube is connected to the support tube through the air guide tube. A push column is sealed and slidably inserted in each guide slide tube through a sealing plug, and each push column extends upward from the outside of the support tube. The inner bottom of the sealing plug box and the guide slide tube are directly connected through a support spring. An arc plate is installed on the top of each push column, and at least four of the arc plates are arranged in a circular ring shape on the outer ring surface of the support tube, and at least four arc plates forming a circular ring are placed on the inner ring surface of the silicone annular ring.

[0007] Furthermore, an annular cavity is opened inside the two end surfaces of the support tube, and a plurality of blowing holes is opened on the front side surface of the annular cavity. The openings of the plurality of blowing holes opened on the two annular cavities are aligned with the welding points of the coil sleeved on the support tube. A fitting sealing component is arranged in the annular cavity, and the fitting sealing component is used to seal the plurality of blowing holes.

[0008] Furthermore, the fitting sealing assembly includes an arc-shaped sealing plate, a sealing frame, an electromagnetic suction strip and a reset spring, the arc-shaped sealing plate is located on the annular cavity wall on one side of the multiple blowing holes, the annular cavity is fixed with a sealing frame on the side wall of the multiple blowing holes, and the sealing frame is aligned with the arc-shaped sealing plate, and an electromagnetic suction strip forming a square frame is installed on the wall surface of the arc-shaped sealing plate aligned with the sealing frame, and a through electromagnet is installed on the electromagnetic suction strip, the electromagnetic suction strip forming a square frame is in electromagnetic adsorption contact with the metal sheet insulated and installed on the sealing frame, and support springs are installed at the four corners of the sealing frame, and the other end of the support spring is connected to the arc-shaped sealing plate.

[0009] Furthermore, the pin clamping mechanism includes a sliding block, an L-shaped bracket, a connecting cross bar, a clamping claw cylinder and a clamping plate. A movable groove is provided on the upper surface of the base along its length direction, and a driving screw is rotatably arranged in the movable groove to drive the sliding block to slide. The upper surface of the sliding block is connected to the lower surface of the left end portion of the horizontal cross bar of the L-shaped bracket, a connecting cross bar is fixed to the upper surface of the vertical block of the L-shaped bracket, and clamping claw cylinders are fixed to the left and right ends of the connecting cross bar, the clamping port of the left clamping claw cylinder faces the left side, and the clamping port of the right clamping claw cylinder faces the right side, the two clamping claws of the clamping claw cylinder are detachably connected with a clamping plate, and recessed grooves are provided on the corresponding wall surfaces of the upper and lower symmetrical clamping plates, and silicone pads are installed on the corresponding upper and lower wall surfaces.

[0010] Furthermore, sliding guide grooves are symmetrically provided on both sides of the recessed groove, and sliding disassembly components are installed in the sliding guide grooves, and the sliding disassembly components are used to disassemble and install the silicone pad.

[0011] Furthermore, the sliding disassembly assembly includes an installation slider, a guide slide rod, a push spring and a screw. The two installation sliders are respectively slidably installed in symmetrical sliding guide grooves, and the lower surfaces of the two installation sliders are connected to the surface of the silicone pad. The sliding guide groove is provided with an insertion hole at the groove wall close to the recessed groove, and a through hole is provided at the groove wall away from the recessed groove. The guide slide rod is horizontally inserted into the insertion hole through the through hole, and the installation slider is slidably sleeved on the guide slide rod. A threaded hole is provided at the orifice of the through hole, and a screw is threadedly connected in the threaded hole. The screw is used to seal the guide slide rod.

[0012] Furthermore, a crossbeam bracket is horizontally fixed on the right side of the drive box above the support tube, and a driving screw is rotatably installed below the crossbeam bracket, and a supporting slider for driving the welding unit to slide is sleeved on the driving screw, and the welding unit is detachably installed on the supporting slider.

[0013] The present invention has the following beneficial effects:

[0014] 1. The present invention arranges a flexible adjustment mechanism on the support tube, the annular array is equipped with a guide slide tube, and a push column is slidably inserted in the guide slide rod, and a plurality of arc plates in a circular ring are placed in the silicone ring ring. The synchronous outward expansion of the plurality of arc plates will push the silicone ring ring to expand outward, so that the silicone ring ring flexibly contacts the inner ring surface of the coil when it expands outward, thereby realizing the flexible support and fixing of the coil to the support tube, which will not only avoid clamping deformation of the coil, but also will not affect the normal welding and fixing of the pins at the two ends by the welding unit due to the coil being fixed to the support tube by external clamping. The two ends of the coil are suspended on the support tube. Therefore, when the pins are welded to the two ends of the coil, the coil will not be mistakenly welded to the support tube due to the thinness of the coil, thereby causing the welded coil to be unable to be removed from the support tube.

[0015] 2. The present invention sets a pin clamping mechanism on the base, and cooperates with the clamping cylinder and the clamping plate at the two ends of the horizontal bar to synchronously clamp the two pins accurately and fit them to the outer ring surface of the coil that is flexibly supported, so that the welding unit can accurately weld the pins to the two ends of the coil, and the left and right horizontal lengths of the base are greater than the length of the support tube, so that the movable pin clamping mechanism can completely remove the welded coil from the support tube, and then the clamping cylinder drives the clamping plate to slowly open and disengage the clamping of the pin, so as to conveniently and quickly remove the welded coil from the support tube for storage. Therefore, the pin clamping mechanism can not only flexibly clamp the pin to achieve accurate contact welding of the pin with the coil, but also remove the welded coil from the support tube, thereby improving the accuracy and efficiency of the welding jig for the coil and the pin support.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1It is a schematic diagram of the overall structure disclosed in the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the support tube disclosed in the present invention;

[0020] Figure 3 It is a structural schematic diagram of the flexible adjustment mechanism disclosed in the present invention;

[0021] Figure 4 It is a cross-sectional view of the right end portion of the support tube disclosed in the present invention;

[0022] Figure 5 It is a structural schematic diagram of the pin clamping mechanism disclosed in the present invention;

[0023] Figure 6 It is a cross-sectional view of the clamping plate disclosed in the present invention.

[0024] In the figure: 1. base; 2. drive box; 3. support tube; 31. annular cavity; 32. air blowing hole; 4. flexible adjustment mechanism; 41. air guide main pipe; 42. guide slide pipe; 43. air guide pipe; 44. push column; 45. sealing plug; 46. support spring; 47. arc plate; 48. silicone ring; 5. fitting sealing component; 51. arc sealing plate; 52. sealing frame; 53. electromagnetic suction strip; 54. reset spring; 6. pin clamp Holding mechanism; 61. Sliding block; 62. L-shaped bracket; 63. Connecting cross bar; 64. Gripping claw cylinder; 65. Clamping plate; 651. Recessed groove; 652. Through hole; 653. Insertion hole; 654. Sliding guide groove; 66. Silicone pad; 7. Sliding disassembly assembly; 71. Installing slider; 72. Guide slide rod; 73. Push spring; 74. Screw; 8. Crossbeam bracket; 81. Driving screw; 82. Supporting slider; 9. Welding unit. DETAILED DESCRIPTION

[0025] 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.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figure 1-Figure 6 As shown, the present invention is an adjustable coil welding fixture, comprising a base 1, a drive box 2 placed on the upper surface of the base 1, and a drive assembly placed in the drive box 2. A support tube 3 is installed on the right side of the drive box 2, and a flexible adjustment mechanism 4 is arranged on the support tube 3. The flexible adjustment mechanism 4 is used to limit and support coils of different diameters sleeved on the support tube 3. A pin clamping mechanism 6 is movably arranged on the upper surface of the base 1. The pin clamping mechanism 6 is used to clamp the pin to be welded so that it can be accurately contacted with the coil for welding;

[0028] In the scheme designed by the present invention, at least one group of flexible adjustment mechanisms 4 is installed on the support tube 3 and a pin clamping mechanism 6 is set on the upper surface of the base 1. When the coil to be welded is sleeved on the support tube 3, the flexible adjustment mechanism 4 is controlled to work, and the sleeved coil will be flexibly supported on the support tube 3, and then the pin to be welded is placed on the pin clamping mechanism 6, so that the pin to be welded is clamped and fixed, so that the pin can be stably and accurately welded to the coil with flexible support, and the thinner coil can be prevented from bending and deforming during the welding process of the coil and the pin due to the excessive rigid clamping force of the existing welding jig, thereby affecting the quality of the coil welding. The flexible adjustment mechanism 4 can adjust its annular diameter, so that coils of different diameters can be flexibly supported, so that the welding jig can adjust and support the welding of coils of different diameters.

[0029] As an embodiment of the present invention, the flexible adjustment mechanism 4 includes an air guide main pipe 41, a guide slide pipe 42, an air guide pipe 43, a push column 44, a sealing plug 45, a support spring 46, an arc plate 47 and a silicone ring 48. The air guide main pipe 41 is inserted into the left end of the support pipe 3, and the right end thereof is sealed. At least four guide slide pipes 42 are installed in a circular array inside the support pipe 3, and the bottom of each guide slide pipe 42 is connected to the support pipe 3 through the air guide pipe 43. , each of the guide slide tubes 42 is sealed and slidably plugged with a push column 44 through a sealing plug 45, and each push column 44 extends upward to the outside of the support tube 3, the sealing plug 45 is directly connected to the inner bottom of the guide slide tube 42 through a support spring 46, and an arc plate 47 is installed on the top of each push column 44, at least four of the arc plates 47 are arranged in a circular ring shape and placed on the outer ring surface of the support tube 3, and at least four arc plates 47 arranged in a circular ring are placed on the inner ring surface of the silicone ring 48;

[0030] In the scheme designed by the present invention, when the coil to be welded is sleeved on the support tube 3, the air pump connected to the air guide main pipe 41 will introduce gas into the support tube 3, so that the gas enters the multiple guide slide tubes 42 through the multiple air guide tubes 43, and then the push column 44 will drive the arc plate 47 to slide outward through the sliding of the sealing plug 45. At this time, the support spring 46 will be stretched, and then the multiple arc plates 47 formed in a circular ring will expand outward, so that the silicone ring 48 will expand outward and flexibly contact the inner ring surface of the coil, so as to realize the flexible support and fixation of the coil to the support tube 3, and the two ends of the coil are suspended on the support tube 3. Therefore, when the pins are welded to the two ends of the coil, the coil will not be mistakenly welded to the support tube 3 due to the thin coil, thereby causing the pins to be welded to the two ends of the coil. As a result, the coil after welding cannot be removed from the support tube 3. At the same time, the coil is supported and fixed to the support tube 3 by the silicone annular ring 48 with flexible inner resistance. Not only will it not cause clamping deformation to the coil, but it will also not affect the normal welding and fixing of the pins at the two end parts by the welding unit 9 because the coil is fixed to the support tube 3 by external clamping. When the welded coil needs to be removed, the valves on the multiple air guide tubes 43 are opened at this time, and the elastic restoring force of the support spring 46 will drive the arc plate 47 to slide toward the outer ring surface of the support tube 3, thereby reducing the diameter of the silicone annular ring 48, so that it is separated from the flexible resistance fixation to the coil, thereby facilitating the rapid removal of the welded coil from the support tube 3, and facilitating the pin welding of the next coil again.

[0031] As an embodiment of the present invention, an annular cavity 31 is provided inside the two end surfaces of the support tube 3, and a plurality of blowing holes are provided on the front side of the annular cavity 31. The openings of the plurality of blowing holes 32 provided on the two annular cavities 31 are aligned with the welding points of the coil sleeved on the support tube 3. A fitting sealing component 5 is provided in the annular cavity 31, and the fitting sealing component 5 is used to seal the plurality of blowing holes 32.

[0032] In the scheme designed by the present invention, after the coil is flexibly supported on the support tube 3 by the expanded silicone annular ring 48, and the pin is welded to the coil, when it is necessary to cool the welding part of the coil and the pin, the valves on the multiple air guide tubes 43 are closed at this time, and then the fitting sealing component 5 is opened to achieve the connection between the multiple blowing holes 32 and the annular cavity 31, and then the air flow is injected into the air guide main pipe 41, so that the air flow enters the annular cavity 31 of the support tube 3, and then the air flow is blown to the welding parts at both ends of the coil through the multiple blowing holes 32, which can cool the pin and coil connection parts after welding, and prevent the coil temperature from being high after welding, which may occur when it is removed. Safety hazard; at the same time, when the valve on the air guide tube 43 is opened, allowing the gas in the guide slide tube 42 to enter the support tube 3, the multiple blowing holes 32 will also blow the gas in the guide slide tube 42 to the welding position of the coil and the pin, further cooling and blowing it; and when gas is filled into the multiple air guide slide tubes, the sealing component 5 needs to work at this time, so that it can seal the multiple blowing holes 32 opened on the cavity wall of the annular cavity 31, and prevent the gas entering the support tube 3 from being discharged through the multiple blowing holes 32, and unable to push the push column 44 to slide outward in the guide slide tube 42, thereby affecting the flexible resistance support of the silicone annular cavity 31 to expand outward to the coil.

[0033] As an embodiment of the present invention, the fitting sealing component 5 includes an arc-shaped sealing plate 51, a sealing frame 52, an electromagnetic suction strip 53 and a reset spring 54. The arc-shaped sealing plate 51 is located on the wall of the annular cavity 31 on one side of the plurality of blowing holes 32. The annular cavity 31 is fixed with a sealing frame 52 at the side wall of the plurality of blowing holes 32, and the sealing frame 52 is aligned with the arc-shaped sealing plate 51. The electromagnetic suction strip 53 in a square shape is installed on the wall surface where the arc-shaped sealing plate 51 is aligned with the sealing frame 52, and the electromagnetic suction strip 53 is installed with a through electromagnet. The electromagnetic suction strip 53 in a square shape is in electromagnetic adsorption contact with the metal sheet insulated and installed on the sealing frame 52. Support springs 46 are installed at the four corners of the sealing frame 52, and the other end of the support spring 46 is connected to the arc-shaped sealing plate 51.

[0034] In the scheme designed by the present invention, when it is necessary to seal the multiple blowing holes 32, the multiple electromagnets on the electromagnetic suction strip 53 are controlled to be energized so that they have magnetic adsorption force and are adsorbed to the side of the sealing frame 52. At this time, the support spring 46 will be compressed, and then the arc-shaped sealing plate 51 will be sealed and fitted to the sealing frame 52, so that the multiple blowing holes 32 are closed to prevent the gas filled in the support tube 3 from leaking through the multiple blowing holes 32, and the multiple arc plates 47 cannot push the silicone ring 48 to expand outward and flexibly support the coil; when the electromagnet is powered off and loses its magnetic adsorption force, the arc-shaped sealing plate 51 will be pushed by the elastic restoring force of the support spring 46 to move away from the sealing frame 52, so that there is a certain gap between the arc-shaped sealing plate 51 and the sealing frame 52, so that the airflow entering the support tube 3 can enter the blowing hole 32 at the sealing frame 52 through the gap, and then be blown out through the blowing hole 32.

[0035] As an embodiment of the present invention, the pin clamping mechanism 6 includes a sliding block 61, an L-shaped bracket 62, a connecting bar 63, a clamping claw cylinder 64 and a clamping plate 65. A moving groove is provided on the upper surface of the base 1 along its length direction, and a driving screw 81 is rotatably arranged in the moving groove for driving the sliding block 61 to slide. The upper surface of the sliding block 61 is connected to the lower surface of the left end of the horizontal bar of the L-shaped bracket 62, and a connecting bar 63 is fixed on the upper surface of the vertical block of the L-shaped bracket 62, and a clamping claw cylinder 64 is fixed on the left and right ends of the connecting bar 63. The clamping opening of the left clamping claw cylinder 64 faces the left side, and the clamping opening of the right clamping claw cylinder 64 faces the right side. The two clamping claws of the clamping claw cylinder 64 are detachably connected with the clamping plate 65, and the corresponding wall surfaces of the clamping plate 65 symmetrically above and below are provided with recessed grooves 651, and silicone pads 66 are installed on the corresponding wall surfaces above and below.

[0036] In the solution designed by the present invention, when it is necessary to accurately weld the pin to the coil supported by the flexible abutment, the operator controls the two clamping claws of the clamping claw cylinder 64 to open, so that the two clamping plates 65 are also opened, and then the pin to be welded is placed in the concave groove 651 of the clamping plate 65 below, and the pin abuts against the ring surface of the coil, and then the clamping claw cylinder 64 is controlled to work, so that it drives the clamping plate 65 to clamp and fix the pin, and then the clamping claw cylinders 64 symmetrically connected at the two ends of the horizontal bar 63 can synchronously clamp the pin. The foot is clamped and fixed to the front side of the coil, so that the welding unit 9 can accurately weld the pins to the two ends of the coil; and when the welded coil needs to be removed from the support tube 3, the silicone ring 48 is separated from the flexible resistance to the coil, and then the driving screw 81 in the hole sliding groove works, so that it drives the L-shaped bracket 62 to slide from left to right on the upper surface of the base 1 through the sliding block 61, and then drives the welded pin clamped by the clamping claw cylinder 64 to move through the connecting cross bar 63, so that the coil will be separated from the support tube 3. The pins are then removed from the support tube 3, and the left and right horizontal lengths of the base 1 are greater than the length of the support tube 3, so that the movable pin clamping mechanism 6 can completely remove the welded coil from the support tube 3, and then the clamping claw cylinder 64 drives the clamping plate 65 to slowly open and disengage from the clamping of the pins, so as to facilitate and quickly remove the welded coil from the support tube 3 for storage. When the welded coil and the pins are removed from the clamping claw cylinder 65, the lead screw 81 is driven in the opposite direction to drive the symmetrical clamping claw cylinder 64 in the opposite direction to the initial position, so as to facilitate the accurate clamping and fixing of the pins to be welded again. The silicone pads 66 installed on the wall corresponding to the two clamping plates 65 enable the clamping plates 65 to flexibly clamp and fix the pins to prevent the clamping force of the clamping plates 65 from being too large and causing breakage or bending. The pin clamping mechanism 6 can not only flexibly clamp the pins to achieve accurate contact welding of the pins with the coils, but also remove the welded coils from the support tube 3, thereby improving the accuracy and efficiency of the welding jig for the coil and pin support welding.

[0037] As an implementation mode of the present invention, the two sides of the recessed groove 651 are symmetrically provided with sliding guide grooves 654, and the sliding guide grooves 654 are provided with sliding disassembly components 7, and the sliding disassembly components 7 are used to disassemble and install the silicone pad 66; in the scheme designed by the present invention, when the upper and lower clamping plates 65 are clamped onto the pins, the silicone pad 66 will be compressed and recessed into the recessed groove 651, and the sliding disassembly components 7 will slide in the sliding guide grooves 654 so that it will not interfere with the silicone pad. The pad 66 is normally concave and deformed in the recessed groove 651; and when the clamping plates 65 are opened away from each other, the elastic restoring force of the silicone pad 66 will recover to be flush with the wall surface of the clamping plate 65, and the clamped pin will be pushed out of the recessed groove 651 to prevent the clamping friction of the upper and lower symmetrical clamping plates 65 on the pin from being too large, causing the pin to be stuck in the recessed groove 651, thereby affecting the rapid removal of the soldered pin from the clamping plate 65, thereby affecting the removal and storage effect of the soldered coil.

[0038] As an embodiment of the present invention, the sliding disassembly assembly 7 includes a mounting slider 71, a guide slider 72, a push spring 73 and a screw 74. The two mounting sliders 71 are respectively slidably mounted in the symmetrical sliding guide grooves 654, and the lower surfaces of the two mounting sliders 71 are connected to the surface of the silicone pad 66. The sliding guide groove 654 is provided with an insertion hole 653 at the groove wall close to the recessed groove 651, and a through hole 652 is provided at the groove wall away from the recessed groove 651. The guide slider 72 passes through the through hole 652 and is horizontally inserted into the insertion hole 653. The mounting slider 71 is slidably sleeved on the guide slider 72. A threaded hole is provided at the orifice of the through hole 652, and a screw 74 is threadedly connected in the threaded hole. The screw 74 is used to block the guide slider 72.

[0039] In the solution designed by the present invention, when the silicone pad 66 is clamped and recessed into the recessed groove 651, the surface end of the silicone pad 66 that is in contact with the clamping plate 65 will pull the installation slider 71 to slide in the sliding guide groove 654 toward the groove wall close to the recessed groove 651, and the guide slide bar 72 can guide and slide the installation slider 71. At this time, the push spring 73 will be compressed, so that the silicone pad 66 can be stably and accurately recessed into the recessed groove 651, thereby achieving flexible contact clamping and fixing of the pin; when the upper and lower clamping plates 65 are opened, the elastic restoring force of the push spring 73 will push the installation slider 71 to slide away from each other in the sliding guide groove 654 along the guide slide bar 72, so that the recessed silicone pad 66 will return to a planar shape, and at the same time, the pin clamped in the recessed groove 651 can be pushed out and clamped. The surface of the plate 65 is flush, which makes it easy to quickly remove the pins from between the two clamping plates 65; in order to facilitate the replacement of the silicone pad 66 that has been worn out due to long-term use, the screw 74 can be removed from the threaded hole of the through hole 652, and then the guide slide bar 72 can be removed from the through hole 652 and the insertion hole 653, which makes it easy to remove the installation slider 71 from the sliding guide groove 654, thereby facilitating the removal and replacement of the silicone pad 66 from the clamping plate 65; then the new silicone pad 66 is installed in the two sliding guide grooves 654 through the two installation sliders 71, and then the guide slide bar 72 is inserted into the through hole 652 and the insertion hole 653 to achieve sliding support for the installation slider 71, and the screw 74 can limit the guide slide bar 72 to the through hole 652 to prevent the guide slide bar 72 from falling out of the sliding guide groove 654.

[0040] As an implementation mode of the present invention, a crossbeam bracket 8 is horizontally fixed on the right side surface of the drive box 2 above the support tube 3, and a driving screw 81 is rotatably installed below the crossbeam bracket 8, and a supporting slider 82 for driving the welding unit 9 to slide is sleeved on the driving screw 81, and the welding unit 9 is detachably installed on the supporting slider 82; in the scheme designed by the present invention, the driving screw 81 can drive the welding unit 9 to slide along the length direction of the support tube 3 through the supporting slider 82, so that the welding unit 9 can be accurately matched with the welding jig, so as to realize precise welding processing of the flexible conflicting coils and the clamped and fixed pins.

[0041] Working principle:

[0042] When the coil to be welded is sleeved on the support tube 3, the air pump connected to the air guide main pipe 41 will introduce gas into the support tube 3, so that the gas enters the multiple guide slide tubes 42 through the multiple air guide tubes 43, and then the push column 44 will drive the arc plate 47 to slide outward through the sliding of the sealing plug 45. At this time, the support spring 46 will be stretched, and then the multiple arc plates 47 formed in a circular ring will expand outward, so that the silicone ring 48 will expand outward and flexibly contact the inner ring surface of the coil, so as to realize the flexible support and fixation of the coil to the support tube 3, and the two ends of the coil are suspended on the support tube 3. The operator controls the two clamping claws of the clamping cylinder 64 to open, so that the two clamping plates 65 are also opened, and then the pin to be welded is placed in the recessed groove 651 of the clamping plate 65 below, and the pin contacts the ring surface of the coil, and then the clamping cylinder 64 is controlled to work, so that it drives the clamping plate 65 to clamp and fix the pin ... The symmetrical clamping cylinders 64 at the two ends of the connecting horizontal bar 63 can synchronously clamp the pins to the front side of the coil, so that the welding unit 9 can accurately weld the pins to the two ends of the coil; and when the welded coil needs to be removed from the support tube 3, the silicone ring 48 will be separated from the flexible resistance to the coil, and then the driving screw 81 in the hole sliding groove will work, so that it drives the L-shaped bracket 62 to slide from left to right on the upper surface of the base 1 through the sliding block 61, and then drives the welded pin clamped by the clamping cylinder 64 to move through the connecting horizontal bar 63, and then the coil will be separated and removed from the support tube 3, and the left and right horizontal length of the base 1 is greater than the length of the support tube 3, so that the movable pin clamping mechanism 6 can completely remove the welded coil from the support tube 3, and then the clamping cylinder 64 drives the clamping plate 65 to slowly open and disengage from the clamping of the pin, so as to facilitate and quickly remove the welded coil from the support tube 3 for storage.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable coil welding jig, comprising a base (1), a drive box (2) disposed on the upper surface of the base (1), and a drive assembly disposed in the drive box (2), characterized in that: A support tube (3) is installed on the right side of the drive box (2), and a flexible adjustment mechanism (4) is arranged on the support tube (3), and the flexible adjustment mechanism (4) is used to provide position-limiting support for coils of different diameters sleeved on the support tube (3); a pin clamping mechanism (6) is movably arranged on the upper surface of the base (1), and the pin clamping mechanism (6) is used to clamp the pin to be welded so that it can be accurately contacted with the coil for welding; The flexible adjustment mechanism (4) comprises an air guide main pipe (41), a guide slide pipe (42), an air guide pipe (43), a push column (44), a sealing plug (45), a support spring (46), an arc plate (47) and a silicone ring (48); the air guide main pipe (41) is inserted into the left end of the support pipe (3), and the right end thereof is sealed; at least four guide slide pipes (42) are installed in a circular array inside the support pipe (3), and the bottom of each guide slide pipe (42) is connected to the support pipe (3) through the air guide pipe (43); each guide slide pipe (42) is connected to the support pipe (3) through the sealing plug (45). 45) is sealed and slidably plugged with a push column (44), and each push column (44) extends upward from the outside of the support tube (3). The inner bottom of the sealing plug (45) and the guide slide tube (42) are directly connected through a support spring (46). The top of each push column (44) is installed with an arc plate (47), at least four of the arc plates (47) are arranged in a circular ring shape on the outer ring surface of the support tube (3), and at least four of the arc plates (47) are arranged in a circular ring shape on the inner ring surface of the silicone ring (48). An annular cavity (31) is opened inside the two end surfaces of the support tube (3), and the front of the annular cavity (31) is A plurality of blowing holes are provided on the side surface, and the openings of the plurality of blowing holes (32) provided on the two annular cavities (31) are aligned with the welding points of the coil sleeved on the support tube (3). A fitting sealing component (5) is provided in the annular cavity (31), and the fitting sealing component (5) is used to seal the plurality of blowing holes (32). The fitting sealing component (5) comprises an arc-shaped sealing plate (51), a sealing frame (52), an electromagnetic suction strip (53) and a reset spring (54). The arc-shaped sealing plate (51) is located on the wall of the annular cavity (31) on one side of the plurality of blowing holes (32). The annular cavity (31) is located A sealing frame (52) is fixed on the side wall of the plurality of blowing holes (32), and the sealing frame (52) is aligned with the arc-shaped sealing plate (51). An electromagnetic suction strip (53) in a square shape is installed on the wall surface of the arc-shaped sealing plate (51) and the sealing frame (52) in alignment, and an electromagnet is installed on the electromagnetic suction strip (53). The electromagnetic suction strip (53) in a square shape is in electromagnetic adsorption contact with a metal sheet insulated and installed on the sealing frame (52). Support springs (46) are installed at the four corners of the sealing frame (52), and the other end of the support spring (46) is connected to the arc-shaped sealing plate (51).

2. The adjustable coil welding jig according to claim 1, characterized in that: The pin clamping mechanism (6) comprises a sliding block (61), an L-shaped bracket (62), a connecting horizontal bar (63), a clamping claw cylinder (64) and a clamping plate (65); a movable groove is provided on the upper surface of the base (1) along its length direction, and a driving screw (81) is rotatably arranged in the movable groove for driving the sliding block (61) to slide; the upper surface of the sliding block (61) is connected to the lower surface of the left end of the horizontal horizontal bar of the L-shaped bracket (62); the upper surface of the vertical block of the L-shaped bracket (62) is A connecting horizontal bar (63) is fixed, and a clamping claw cylinder (64) is fixed to the left and right ends of the connecting horizontal bar (63), the clamping opening of the left clamping claw cylinder (64) faces the left side, and the clamping opening of the right clamping claw cylinder (64) faces the right side, and the two clamping claws of the clamping claw cylinder (64) are detachably connected to a clamping plate (65), and the corresponding wall surfaces of the clamping plates (65) symmetrically arranged above and below are provided with recessed grooves (651), and the corresponding wall surfaces above and below are installed with silicone pads (66).

3. The adjustable coil welding jig according to claim 2, characterized in that: Sliding guide grooves (654) are symmetrically provided on both sides of the recessed groove (651), and a sliding disassembly assembly (7) is installed in the sliding guide groove (654). The sliding disassembly assembly (7) is used to disassemble and install the silicone pad (66).

4. The adjustable coil welding jig according to claim 3, characterized in that: The sliding disassembly assembly (7) comprises an installation slider (71), a guide slider (72), a push spring (73) and a screw (74). The two installation sliders (71) are respectively slidably installed in the symmetrical sliding guide grooves (654), and the lower surfaces of the two installation sliders (71) are connected to the surface of the silicone pad (66). The sliding guide groove (654) is provided with an insertion hole (653) at the groove wall close to the recessed groove (651), and a through hole (652) is provided at the groove wall away from the recessed groove (651). The guide slider (72) passes through the through hole (652) and is horizontally inserted into the insertion hole (653). The installation slider (71) is slidably sleeved on the guide slider (72). A threaded hole is provided at the orifice of the through hole (652), and a screw (74) is threadedly connected in the threaded hole. The screw (74) is used to block the guide slider (72).

5. The adjustable coil welding jig according to claim 1, characterized in that: A crossbeam bracket (8) is horizontally fixed on the right side surface of the drive box (2) above the support tube (3), and a driving screw (81) is rotatably mounted below the crossbeam bracket (8), and a supporting slider (82) for driving the welding unit (9) to slide is sleeved on the driving screw (81), and the welding unit (9) is detachably mounted on the supporting slider (82).

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