An automatic welding machine for relay contact system components

Abstract

The present application relates to an automatic welding machine for relay contact system components, which comprises a machine platform, a wire loading device, a wire stripping device, a wire feeding device, a wire unwinding device, a material strip placement rack and a welding device, wherein the wire stripping device comprises a wire stripping mechanism and a wire pulling mechanism, wherein the wire stripping mechanism clamps a plurality of wires arranged by a wire tidying device and cooperates with the wire pulling mechanism to pull, strip and cut the wires; the material strip placement rack is used to place a connecting sheet material strip and a moving spring sheet material strip, and the connecting sheet material strip and the moving spring sheet material strip are located on both sides of the material strip placement rack; the wire feeding device clamps and moves the wires processed by the wire stripping device to above the material strip placement rack; the wire unwinding device is used to transfer the wire clamping sent to above the material strip placement rack to between the connecting sheet material strip and the moving spring sheet material strip; the welding device is used to weld the wire connection between the connecting sheet material strip and the moving spring sheet material strip at the welding station; the present application has the effect of improving the efficiency of welding the wire to the moving spring sheet and the connecting sheet.

Description

Technical Field

[0001] The present application relates to the field of relay production equipment, and in particular to an automatic welding machine for relay contact system components. Background Art

[0002] The electromagnetic relay is mainly composed of a contact system, an electromagnetic system, a reaction force device and a protective device. As one of the main components of the electromagnetic relay, the contact system includes two parts: a base assembly and an armature assembly.

[0003] The existing contact system consists of two steps during the assembly process. First, the connecting piece is pressed into the base, and then the movable spring piece of the armature assembly and the connecting piece in the base assembly are welded by wire to form the contact system.

[0004] The existing welding of the wire, the movable spring piece and the connecting piece is usually performed manually or in steps by welding equipment, so there is a defect of low welding efficiency. Summary of the invention

[0005] In order to improve the efficiency of welding the wire, the movable spring and the connecting piece, the present application provides an automatic welding machine for relay contact system components.

[0006] The present application provides an automatic welding machine for relay contact system components, which adopts the following technical solution: comprising a machine platform,

[0007] A wire feeding device, the wire feeding device comprising a wire rack and a wire straightener, the wire rack being used to place a plurality of wire barrels and simultaneously guide the wires in the plurality of wire barrels to the wire straightener for straightening;

[0008] A wire stripping device, the wire stripping device comprising a wire stripping mechanism and a wire pulling mechanism, the wire stripping mechanism clamps the multiple wires arranged by the wire tidying device through a wire stripping knife and cooperates with the wire pulling mechanism to pull and strip the wires;

[0009] A material belt placement rack, the material belt placement rack is installed on the machine platform, the material belt placement rack is used to place the connecting sheet material belt and the dynamic spring sheet material belt, the connecting sheet material belt and the dynamic spring sheet material belt are located on both sides of the material belt placement rack;

[0010] A wire feeding device, the wire feeding device is installed on the machine platform between the wire stripping device and the material strip placement rack, the wire feeding device includes a wire feeding clamping mechanism and a wire feeding driving mechanism, the wire feeding clamping mechanism is connected to the wire feeding driving mechanism, the wire feeding clamping mechanism is used to clamp the wire processed by the wire stripping device, and the wire clamped by the wire feeding clamping mechanism is driven by the wire feeding driving mechanism to move to above the material strip placement rack;

[0011] A wire-releasing device, which is used to clamp and transfer the wire sent to the top of the material strip placement rack to between the connecting piece material strip and the movable spring piece material strip and make both ends of the wire contact with the connecting piece and the movable spring piece;

[0012] A welding device, the welding device is mounted on the machine platform, and the welding device is used to weld the wire connection between the connecting sheet material strip and the dynamic spring sheet material strip at the welding station;

[0013] The material belt pushing device cooperates with the welding device to intermittently push the material belt to move.

[0014] By adopting the above technical scheme, the wire-loading device guides the wire of the wire barrel to the wire straightener for straightening, the straightened wire is stripped and cut by the wire stripping knife in the wire stripping mechanism and the wire pulling mechanism, and then the wire is clamped by the wire feeding clamping mechanism in the wire feeding mechanism, and the wire feeding clamping mechanism is driven by the wire feeding driving mechanism to transfer the wire to the top of the material strip placement rack, and the wire unwinding device clamps the wire transferred to the top of the material strip placement rack and places it between the connecting piece material strip and the movable spring piece material strip, and the two ends of the wire are welded between the connecting piece material strip and the movable spring piece material strip by the welding device, and the welded material strip is pushed forward by the material strip pushing device, and the above actions are repeated in sequence to complete the welding of the connecting piece and the movable spring piece with the wire, thereby improving the welding efficiency of the wire, the movable spring piece and the connecting piece.

[0015] Preferably, the wire rack includes a frame body and a plurality of wire spool seats arranged on the frame body, the frame body located above the wire spool seats is provided with a plurality of vertical mounting plates fixedly arranged at vertical intervals, each of the vertical mounting plates is provided with a first wire hole seat fixedly arranged on both sides corresponding to the wire spool seats below, a plurality of second wire hole seats corresponding to the first wire hole seats are arranged at intervals above the frame body, and the second wire hole seats face the direction of the wire straightener; a wire management rack is provided between the wire rack and the wire straightener, and the wire management rack is provided with a plurality of third wire hole seats corresponding to the second wire hole seats.

[0016] The wire straightener comprises a wire straightening frame, a transverse wire straightening mechanism and a longitudinal wire straightening mechanism, wherein the transverse wire straightening mechanism and the longitudinal wire straightening mechanism are sequentially arranged on the wire straightening frame (231) along the length direction, and the transverse wire straightening mechanism comprises a plurality of transverse wire guide wheels, a plurality of transverse wire pressing wheels and a transverse adjustment component for adjusting the distance between the transverse wire pressing wheels and the transverse wire guide wheels;

[0017] The plurality of transverse guide wheels are horizontally and rotatably connected to the wire aligning frame (231), the transverse adjustment assembly comprises a first adjustment block, a first mounting plate, a first guide block and a first adjustment rod, the first adjustment block is horizontally arranged along the length direction of the wire aligning frame (231), the plurality of transverse wire pressing wheels are horizontally and rotatably connected to the first adjustment block, and the plurality of transverse wire pressing wheels are located above the plurality of transverse wire guide wheels, and the transverse wire guide wheels and the transverse wire pressing wheels are staggered, the first guide block is vertically fixedly arranged on the side wall of the first mounting plate, the side wall of the first adjustment block away from the transverse wire pressing wheel is vertically provided with a first guide groove, the first adjustment block is slidably connected to the first guide block via the first guide groove, the first adjustment rod is vertically threadedly connected to the first mounting plate, and the first adjustment block is rotatably connected to the first adjustment rod;

[0018] The longitudinal wire straightening mechanism comprises a plurality of longitudinal wire guide wheels, a plurality of longitudinal wire pressing wheels and a longitudinal adjustment assembly for adjusting the distance between the longitudinal wire guide wheels and the longitudinal wire pressing wheels;

[0019] The plurality of longitudinal guide wheels are vertically and rotatably connected to the wire aligning frame (231), the longitudinal adjustment assembly comprises a second adjustment block, a second mounting plate, a second guide block and a second adjustment rod, the second adjustment block is horizontally arranged along the length direction of the wire aligning frame (231), the plurality of longitudinal wire pressing wheels are vertically and rotatably connected to the upper surface of the second adjustment block, and the plurality of longitudinal wire pressing wheels are located on one side of the plurality of longitudinal wire guide wheels, and the longitudinal wire guide wheels and the longitudinal wire pressing wheels are staggered, the second guide block is horizontally and fixedly arranged on the upper surface of the second mounting plate, the side wall of the second adjustment block away from the longitudinal wire pressing wheel is horizontally provided with a second guide groove, the second adjustment block is slidably connected to the second guide block through the second guide groove, the second adjustment rod is horizontally threadedly connected to the second mounting plate, and the second adjustment block is rotatably connected to the second adjustment rod.

[0020] By adopting the above technical solution, the wire reel is placed on the wire reel placement seat, the wire is guided to the wire management rack through the first wire hole seat and the second wire hole seat, and the multiple wires are centrally combed and guided to the wire straightener through the wire management rack. After the multiple wires are combed by the wire rack and the wire management rack, they are centrally arranged horizontally and vertically through the horizontal wire straightening mechanism and the vertical wire straightening mechanism in the wire straightener, thereby improving the straightness of the wire.

[0021] Preferably, the wire-pulling device also includes a wire-input and wire-pulling mechanism, which includes a wire-pulling mounting seat, a wire-passing hole plate, a wire-pulling hole seat, a wire-pulling guide block, a wire-pulling cylinder and a first wire-clamping cylinder. The wire-pulling mounting seat is installed on a machine platform between the wire straightener and the wire management rack, the wire-passing hole plate is vertically installed on the wire-pulling mounting seat close to the wire management rack, the cylinder body of the wire-pulling cylinder is fixed on the wire-pulling mounting seat, the telescopic shaft of the wire-pulling cylinder is fixed on the wire-pulling hole seat, the first wire-clamping cylinder is installed on the wire-pulling hole seat, and the first wire-clamping cylinder intermittently cooperates with the wire-passing hole of the wire-pulling hole seat to clamp the wire, the wire-pulling guide block is fixedly arranged in the direction of the wire straightener, the wire-pulling hole seat is slidably connected to the wire-pulling guide block through a sliding seat, the wire-pulling cylinder is located between the wire-pulling hole seat and the wire-passing hole plate, and the wire-pulling cylinder is arranged in parallel with the wire-pulling guide block.

[0022] By adopting the above technical solution, the wires are further concentrated through the wire-passing hole plate to facilitate passing through the wire-pulling hole seat. Through the intermittent cooperation of the first wire clamping cylinder and the wire-pulling cylinder, the wires are pushed and guided to the wire straightener.

[0023] Preferably, the wire stripping mechanism further comprises a cutting knife and a wire stripping drive assembly, the wire stripping knife comprises an upper wire stripping knife and a lower wire stripping knife, the upper wire stripping knife and the lower wire stripping knife are arranged opposite to each other up and down, the upper wire stripping knife and the lower wire stripping knife are provided with corresponding wire stripping knife grooves, two upper wire stripping knives and two lower wire stripping knives are provided, and the two upper wire stripping knives and the two lower wire stripping knives are arranged vertically at intervals;

[0024] The cutting knife comprises an upper cutting knife and a lower cutting knife, wherein the upper cutting knife and the lower cutting knife are arranged vertically opposite to each other, and the upper cutting knife is located between the two upper wire stripping knives, and the lower cutting knife is located between the two lower wire stripping knives;

[0025] The wire stripping drive assembly comprises a wire stripping mounting frame, a wire stripping drive motor, a wire stripping screw rod and a wire stripping movable seat, the wire stripping mounting frame is vertically mounted on the machine platform, the wire stripping drive motor is mounted on the upper end of the wire stripping mounting frame, the wire stripping screw rod is vertically rotatably connected to the wire stripping mounting frame, and the wire stripping screw rod is reversely threaded from the middle position to both ends, and the output shaft of the wire stripping drive motor is coaxially fixedly connected to one end of the wire stripping screw rod, two wire stripping movable seats are arranged, the two wire stripping movable seats are vertically slidably connected to the wire stripping mounting frame and are threadedly connected to the wire stripping screw rod at the same time, and the upper wire stripping knife and the upper cutting knife as well as the lower wire stripping knife and the lower cutting knife are respectively mounted on the two wire stripping movable seats;

[0026] The wire pulling mechanism comprises a first wire pulling mechanism and an upper wire pulling mechanism, wherein the first wire pulling mechanism and the upper wire pulling mechanism are located on both sides of the wire stripping knife;

[0027] The first wire pulling mechanism comprises a wire pulling mounting frame, a wire pulling movable seat, a wire pulling lead screw, a wire pulling motor and a clamping assembly for clamping the wire, the wire pulling mounting frame is horizontally mounted on the machine platform, the wire pulling movable seat is slidably connected to the wire pulling mounting frame, the wire pulling lead screw is horizontally rotatably connected to the wire pulling mounting frame and is threadedly connected to the wire pulling movable seat, the clamping assembly is mounted on the wire pulling movable seat, and the wire pulling motor drives the wire pulling lead screw to rotate so that the clamping assembly is close to or away from the wire stripping mechanism;

[0028] The clamping assembly comprises a first clamping jaw cylinder, a first upper clamping block and a first lower clamping block, the cylinder body of the first clamping jaw cylinder is fixedly mounted on the wire moving seat, and the first upper clamping block and the first lower clamping block are respectively mounted on two clamping jaws of the first clamping jaw cylinder;

[0029] The upper wire pulling mechanism includes an upper wire mounting frame, an upper wire motor, an upper wire moving seat, an upper wire screw, an upper wire hole seat and a second wire clamping cylinder. The upper wire mounting frame is horizontally mounted on the machine platform, the upper wire moving seat is horizontally slidably connected to the upper wire mounting frame, the upper wire screw is rotatably connected to the upper wire mounting frame and is threadedly connected to the upper wire moving seat, the upper wire hole seat is fixedly mounted on the upper wire moving seat, the second wire clamping cylinder is mounted on the upper wire hole seat, and the second wire clamping cylinder intermittently cooperates with the wire passing hole of the upper wire hole seat to clamp the wire, and the upper wire motor drives the upper wire screw to rotate so that the upper wire hole seat is close to or away from the wire stripping mechanism.

[0030] By adopting the above technical scheme, the upper wire hole seat of the upper wire pulling mechanism cooperates with the second wire clamping cylinder to clamp the wire, and the upper wire hole seat is driven by the upper wire motor to push the wire to the wire stripping mechanism, and the clamping assembly in the first wire pulling mechanism is driven by the wire pulling motor to approach the wire stripping mechanism, and the wire end is clamped by the clamping assembly. At the same time, the wire stripping drive assembly in the wire stripping mechanism drives the upper cutting knife and the lower cutting knife to approach and cut the wire, and the upper wire stripping knife and the lower wire stripping knife located on both sides of the cutting knife are approached and clamped on both sides of the wire. At this time, the upper wire motor drives the upper wire hole seat to move the wire away from the wire stripping mechanism, and the wire pulling motor drives the clamping assembly to move away from the wire stripping mechanism. In the process of the upper wire hole seat and the clamping assembly driving the wire to move, the upper wire stripping knife and the lower wire stripping knife cooperate to strip off the outer skin of the wire end, thereby automatically completing the cleaning of the outer skin of the wire end.

[0031] Preferably, the wire feeding clamping mechanism comprises a second clamping jaw cylinder, a second upper clamping block and a second lower clamping block, wherein the second upper clamping block and the second lower clamping block are arranged opposite to each other and are respectively mounted on two clamping jaws of the second clamping jaw cylinder;

[0032] The wire feeding drive mechanism comprises a wire feeding mounting frame, a longitudinal driving assembly, a vertical driving assembly and a transverse driving assembly, and the wire feeding mounting frame is installed on the machine platform on one side between the wire stripping device and the welding device;

[0033] The longitudinal drive assembly comprises a longitudinal drive motor, a longitudinal guide frame, a longitudinal screw and a longitudinal moving seat, wherein the longitudinal guide frame is horizontally mounted on the wire feeding mounting frame, the longitudinal screw is horizontally rotatably connected to the longitudinal guide frame, the longitudinal moving seat is slidably connected to the longitudinal guide frame and is threadedly connected to the longitudinal screw, and the longitudinal drive motor drives the screw to rotate;

[0034] The vertical drive assembly comprises a vertical cylinder and a vertical mounting seat, wherein the vertical cylinder is vertically mounted on the longitudinal moving seat, and the vertical mounting seat is fixedly mounted on the telescopic shaft of the vertical cylinder;

[0035] The transverse drive assembly includes a transverse cylinder and a transverse mounting seat, wherein the transverse cylinder is horizontally mounted on the side wall of the vertical mounting seat, the transverse mounting seat is mounted on the telescopic shaft of the transverse cylinder, and the cylinder body of the second clamping jaw cylinder is fixed on the side wall of the transverse mounting seat.

[0036] By adopting the above technical solution, the transverse drive component in the wire feeding drive mechanism drives the second clamping cylinder to approach the wire stripping device to clamp the stripped wire, and the longitudinal drive component, the vertical drive component and the transverse drive component cooperate to transfer the wire to the top of the material strip placement rack.

[0037] Preferably, the material belt placement rack includes a bottom plate, a plurality of vertical plates are vertically installed at intervals on both sides of the bottom plate, material guide plates are horizontally installed on the two vertical plates, and material guide grooves for the movement of the feed belt are opened along the length direction on the opposite side walls of the two material guide plates.

[0038] By adopting the above technical solution, the guide grooves on the two guide plates guide the movement of the connecting sheet material belt and the movable spring sheet material belt, thereby improving the movement stability of the connecting sheet material belt and the movable spring sheet material belt.

[0039] Preferably, the wire-releasing device includes a pushing cylinder, a connecting seat, a third clamping cylinder, a third upper clamping block and a third lower clamping block. The pushing cylinder is vertically mounted on the material strip placement rack, the third clamping cylinder is horizontally arranged and located above the pushing cylinder, the connecting seat is fixedly mounted on the telescopic shaft of the pushing cylinder, the third clamping cylinder is fixedly mounted on the connecting seat, the third upper clamping block and the third lower clamping block are relatively arranged and respectively fixedly mounted on the two clamping jaws of the third clamping cylinder, the third upper clamping block and the third lower clamping block are provided with a clearance opening, and the clearance opening is for the second upper clamping block and the second lower clamping block to be inserted.

[0040] By adopting the above technical solution, the push cylinder drives the third clamping cylinder to move up to the clamping station. At this time, the second upper clamping block and the second lower clamping block are in the yielding opening between the third upper clamping block and the third lower clamping block. Through the cooperation of the second clamping cylinder and the third clamping cylinder, the wire in the clamping assembly is transferred to the third clamping cylinder, and then the push cylinder drives the third clamping cylinder to move the wire down to the welding station between the connecting sheet material strip and the movable spring sheet material.

[0041] Preferably, the strip placement rack is provided with two positioning and clamping mechanisms for clamping the strips on both sides of the welding position, and when the wire-releasing device is in the welding station, the third upper clamping block and the third lower clamping block are located between the two third positioning and clamping mechanisms;

[0042] The positioning and clamping mechanism includes a clamping cylinder and a positioning pressure plate. The clamping cylinder is vertically installed on the side wall of the vertical plate, and the positioning pressure plate is horizontally arranged. One side of the lower surface of the positioning pressure plate is fixed to the telescopic shaft of the clamping cylinder, and one end of the positioning pressure plate extends downward to have a pressure block pressed against the material strip.

[0043] By adopting the above technical solution, the material strip at the welding station is pressed by the clamping cylinder to drive the positioning pressure plate, thereby improving the stability of the material strip welding and further improving the accuracy of the welding between the material strip and the wire.

[0044] Preferably, the material belt pushing device includes a push rod and a material belt driving mechanism that drives the push rod to drive the material belt to move intermittently on the material belt placement rack. The material belt driving mechanism includes a fixed seat, an upward push cylinder, a horizontal cylinder and a pushing seat. The fixed seat is fixedly installed on the material belt placement rack and is located below the material belt. The cylinder body of the upward push cylinder is installed on the fixed seat. The cylinder body of the horizontal cylinder is fixedly connected to the telescopic shaft of the upward push cylinder. The pushing seat is fixedly connected to the telescopic shaft of the horizontal cylinder. The push rod is vertically arranged. The guide plate is provided with a long strip of giving way hole along the moving direction of the material belt, and the push rod is arranged corresponding to the long strip of giving way hole.

[0045] By adopting the above technical solution, the upward push cylinder pushes the horizontal cylinder to move upward, so that the push rod on the push seat moves upward through the gap between the material strips, and the push rod is driven by the horizontal cylinder to move horizontally, thereby pushing the material strip to move along the material guide trough.

[0046] Preferably, the material strip placement seat is provided with a welding detection device for detecting the welding quality of the wire;

[0047] The welding detection device includes a material strip clamping mechanism, a point and line inspection mechanism, and a detection mechanism. The material strip clamping mechanism includes a material pressing cylinder and a material pressing plate. The cylinder body of the material pressing cylinder is vertically fixed to the side wall of the vertical plate. The material pressing plate is horizontally arranged. One side of the material pressing plate extends to the top of the material pressing cylinder and the telescopic shaft of the material pressing cylinder is fixed to the material pressing plate. Both sides of the lower surface of the material pressing plate are convex downwardly arranged corresponding to the material strip position.

[0048] The point and line inspection mechanism includes a vertical frame, an inspection cylinder, a needle seat and an ejector pin. The vertical frame is installed on a machine table close to the material strip placement frame, the inspection cylinder is installed on one side of the vertical frame, a plurality of ejectors are provided, and a plurality of the ejectors are vertically spaced and installed on the needle seat and extend downward from the needle seat. A clearance notch is provided on the material pressing plate corresponding to the position of the wire, and the ejector pin corresponds to the wire through the clearance notch. The needle seat is connected to the telescopic shaft of the inspection cylinder to push the needle seat to drive the ejector pin to press the wire downward.

[0049] The detection mechanism includes a detection bracket and a CCD detector. The detection bracket is installed on the machine platform. The CCD detector is installed on the detection bracket. The CCD detector is located on the discharge side above the material belt placement rack and close to the point line inspection mechanism.

[0050] By adopting the above technical solution, the pressing cylinder drives the pressing plate to press the connecting sheet material strips and the moving spring sheet material strips on both sides, and the checking cylinder drives the needle seat to move downward so that the ejector pin on the needle seat is pressed against the wire to check whether the wire is stably welded to the material strip. The material strip is pushed to the bottom of the CCD detector by the material strip pushing device to detect whether the wire is welded to the connecting sheet and the moving spring sheet.

[0051] In summary, the present application includes at least one of the following beneficial technical effects:

[0052] 1. The wire loading device guides the wire of the wire barrel to the wire straightener for straightening. The wire after straightening is stripped and cut by the wire stripping knife in the wire stripping mechanism and the wire pulling mechanism. Then, the wire is clamped by the wire feeding clamping mechanism in the wire feeding mechanism. The wire feeding clamping mechanism is driven by the wire feeding driving mechanism to transfer the wire to the top of the material belt placement rack. The wire unwinding device clamps and transfers the wire transferred to the top of the material belt placement rack between the connecting piece material belt and the moving spring piece material belt. The two ends of the wire are welded between the connecting piece material belt and the moving spring piece material belt by the welding device, and the welded material belt is pushed forward by the material belt pushing device. The above actions are repeated in sequence to complete the welding of the connecting piece and the moving spring piece with the wire, thereby improving the welding efficiency of the wire, the moving spring piece and the connecting piece;

[0053] 2. The upper wire hole seat of the upper wire pulling mechanism cooperates with the second wire clamping cylinder to clamp the wire, and the upper wire hole seat is driven by the upper wire motor to push the wire to the wire stripping mechanism. The clamping assembly in the first wire pulling mechanism is driven by the wire pulling motor to approach the wire stripping mechanism, and the wire end is clamped by the clamping assembly. At the same time, the wire stripping drive assembly in the wire stripping mechanism drives the upper cutting knife and the lower cutting knife to approach to cut the wire, and the upper wire stripping knife and the lower wire stripping knife located on both sides of the cutting knife are close to clamp on both sides of the wire. At this time, the upper wire motor drives the upper wire hole seat to move the wire away from the wire stripping mechanism, and the wire pulling motor drives the clamping assembly to move away from the wire stripping mechanism. In the process of the upper wire hole seat and the clamping assembly driving the wire to move, the upper wire stripping knife and the lower wire stripping knife cooperate to strip the outer skin of the wire end, thereby automatically completing the cleaning of the outer skin of the wire end;

[0054] 3. Use the pressing cylinder to drive the pressing plate to press the connecting sheet material strips and the moving spring sheet material strips on both sides. Use the checking cylinder to drive the needle seat to move downward so that the ejector pin on the needle seat presses against the wire. Check whether the wire is stably welded on the material strip. Use the material strip pushing device to push the material strip to the bottom of the CCD detector to check whether the wire is welded on the connecting sheet and the moving spring sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of the overall structure of the automatic welding machine in the embodiment of the present application.

[0056] Figure 2 It is a partial structural schematic diagram of the automatic welding machine in the embodiment of the present application.

[0057] Figure 3 It is a schematic diagram of the overall structure of the wire rack in the embodiment of the present application.

[0058] Figure 4 It is a structural schematic diagram of the wire feeding and pulling mechanism in the embodiment of the present application.

[0059] Figure 5 It is a schematic diagram of the structure of the line rectifier in the embodiment of the present application.

[0060] Figure 6 It is a schematic diagram of the overall structure of the wire stripping device in the embodiment of the present application.

[0061] Figure 7 It is a structural schematic diagram of the wire stripping mechanism and the wire pulling mechanism in the embodiment of the present application.

[0062] Figure 8 It is a schematic diagram of the structure of the wire feeding device in the embodiment of the present application.

[0063] Fig. 9 It is a schematic diagram of the installation structure of the material belt placement rack, the wire release device and the material belt pushing device in the embodiment of the present application.

[0064] Fig.10 It is a schematic diagram of the installation structure of the material strip placement rack, the wire release device and the welding detection device in the embodiment of the present application.

[0065] Fig.11 yes Fig. 9 Enlarged view of point A in the middle.

[0066] Fig.12 It is a schematic diagram of the installation structure of the point-line inspection mechanism in the embodiment of the present application.

[0067] Fig.13 It is a schematic diagram of the installation structure of the welding device in the embodiment of the present application.

[0068] Description of reference numerals:

[0069] 1. Machine; 11. Material belt placement rack; 111. Bottom plate; 112. Vertical plate; 113. Material guide plate; 114. Material guide trough; 115. Long strip clearance hole; 2. Threading device; 21. Thread rack; 211. Frame; 212. Thread drum placement seat; 213. Vertical mounting plate; 214. First thread hole seat; 215. Second thread hole seat; 22. Thread inlet and pulling mechanism; 221. Thread pulling installation seat; 222. Thread passing hole plate; 223. Thread pulling hole seat; 224. Thread pulling guide block; 225. Thread pulling cylinder; 226. First thread clamping cylinder; 227. Slider; 23. Thread straightener; 231. Thread straightener rack; 232. Horizontal thread straightening mechanism; 2321. Horizontal wire guide wheel; 2322. Horizontal wire pressing wheel; 2323. First adjusting block; 2324, first mounting plate; 2325, first guide block; 2326, first adjustment rod; 2327, first guide slot; 233, longitudinal line straightening mechanism; 2331, longitudinal wire guide wheel; 2332, longitudinal wire pressing wheel; 2333, second adjustment block; 2334, second mounting plate; 2335, second guide block; 2336, second adjustment rod; 2337, second guide slot; 234, inlet hole seat; 235, outlet hole seat; 24, wire management rack; 241, vertical rod; 242, third hole seat; 3, wire stripping device; 31, wire stripping mechanism; 311, wire stripping knife; 3111, upper wire stripping knife; 3112, lower wire stripping knife; 3113, wire stripping knife slot; 312, cutting knife; 3121, upper cutting knife; 3122, Lower cutter; 313, wire stripping knife groove; 314, wire stripping drive assembly; 3141, wire stripping mounting frame; 3142, wire stripping drive motor; 3143, wire stripping screw rod; 3144, wire stripping movable seat; 3145, limit plate; 3146, extension mounting arm; 315, waste collection box; 32, wire pulling mechanism; 321, first wire pulling mechanism; 3211, wire pulling mounting frame; 3212, wire pulling movable seat; 3213, wire pulling screw rod; 3214, wire pulling motor; 3215, first clamping jaw cylinder; 3216, first upper clamping block; 3217, first lower clamping block; 3218, first clamping groove; 322, upper wire pulling mechanism; 3221, upper wire mounting frame; 3222, upper wire motor; 3223, upper wire movable seat; 32 24. Upper thread screw rod; 3225. Upper thread hole seat; 3226. Second thread clamping cylinder; 4. Wire feeding device; 41. Wire feeding clamping mechanism; 411. Second clamping jaw cylinder; 412. Second upper clamping block; 413. Second lower clamping block; 414. Second thread clamping groove; 42. Wire feeding drive mechanism; 421. Wire feeding mounting frame; 422. Longitudinal driving assembly; 4221. Longitudinal driving motor; 4222. Longitudinal guide frame; 4223. Longitudinal screw rod; 4224. Longitudinal moving seat; 423. Vertical driving assembly; 4231. Vertical cylinder; 4232. Vertical mounting seat; 424. Horizontal driving assembly; 4241. Horizontal cylinder; 4242. Horizontal mounting seat; 5. Wire releasing device; 51. Pushing cylinder; 52. Connecting seat;53, third clamping jaw cylinder; 54, third upper clamping block; 541, upper connecting block; 542, upper guide block; 543, adjusting slot; 55, third lower clamping block; 551, lower connecting block; 552, third clamping groove; 56, yielding port; 6, welding device; 61, positioning and clamping mechanism; 611, clamping cylinder; 612, positioning and pressing plate; 613, pressing block; 62, welding bracket; 63, laser welding head; 64, CCD welding positioner; 7, material belt pushing device; 71 , push rod; 72, material belt driving mechanism; 721, fixed seat; 722, push cylinder; 723, horizontal cylinder; 724, material push seat; 8, welding detection device; 81, material belt pressing mechanism; 811, material pressing cylinder; 812, material pressing plate; 8121, clearance gap; 82, point and line inspection mechanism; 821, vertical frame; 822, inspection cylinder; 823, needle seat; 824, ejector; 83, detection mechanism; 831, detection bracket; 832, CCD detector. ; DETAILED DESCRIPTION

[0070] The following is combined with Figure 1-13 This application is described in further detail.

[0071] The embodiment of the present application discloses an automatic welding machine for relay contact system components. Figure 1 and Figure 2 The automatic welding machine includes a machine 1, a wire loading device 2, a wire stripping device 3, a wire feeding device 4, a wire unwinding device 5 and a welding device 6. The wire loading device 2 includes a wire rack 21, a wire feeding and pulling mechanism 22 and a wire straightener 23. The wire rack 21 is used to place multiple wire reels and simultaneously guide the wires in the multiple wire reels to the wire straightener 23 for straightness adjustment. The wire feeding and pulling mechanism 22 is installed between the wire rack 21 and the wire straightener 23, and is used to push the wires of the wire rack 21 to the wire straightener 23. The wire stripping device 3 is used to strip and cut the ends of the wires. A material strip placement rack 11 is installed on the machine 1. The material strip placement rack 11 is used to place the connecting sheet material strip and the dynamic spring sheet material strip. The connecting sheet material strip and the dynamic spring sheet material strip are located on both sides of the material strip placement rack 11. The wire feeding device 4 is installed on the machine 1 between the wire stripping device 3 and the material strip placement rack 11, and is used to clamp and transfer the wires processed by the wire stripping device 3 to the top of the material strip placement rack 11. The wire unwinding device 5 is used to clamp the wire above the material strip placement rack 11 and place it at the welding station between the connecting piece material strip and the movable spring piece material strip. The welding device 6 is used to weld the two ends of the wire at the welding station to the connecting piece and the movable spring piece between the connecting piece material strip and the movable spring piece material strip. The material strip placement rack 11 is provided with a material strip pushing device 7, which is used to push the welded material strip forward.

[0072] The welding process of the wires, the connecting piece and the movable spring piece: the wire loading device 2 arranges the multiple wires and guides them to the wire stripping mechanism 31, the wire stripping device 3 strips and cuts the wire ends, and then the wire feeding device 4 clamps and transfers the wires to the top of the material strip placement rack 11, the wire unwinding device 5 clamps and transfers the wires transferred to the top of the material strip placement rack 11 and places them between the connecting piece material strip and the movable spring piece material strip, the welding device 6 welds the two ends of the wire between the connecting piece material strip and the movable spring piece material strip, and the material strip pushing device 7 pushes the welded material strip forward, and the above actions are controlled by the PLC controller to be repeated in sequence, thereby automatically realizing the welding of the wires between the connecting piece and the movable spring piece.

[0073] Reference Figure 3 Specifically, the wire rack 21 includes a frame body 211 and a plurality of wire spool seats 212 disposed on the frame body 211. A plurality of vertical mounting plates 213 are fixedly disposed vertically at intervals on the frame body 211 above the wire spool seats 212. A first wire hole seat 214 is fixedly disposed on both sides of each vertical mounting plate 213 corresponding to the positions of the wire spool seats 212 below. A plurality of second wire hole seats 215 corresponding to the first wire hole seats 214 are spaced apart above the frame body 211, and the second wire hole seats 215 face the direction of the wire straightener 23. A wire arranging frame 24 is disposed between the wire rack 21 and the wire straightener 23. A plurality of vertical rods 241 are vertically spaced apart on the wire arranging frame 24, and a plurality of third wire hole seats 242 corresponding to the second wire hole seats 215 are fixedly disposed on the vertical rods 241.

[0074] Reference Figure 4The wire feeding and pulling mechanism 22 includes a wire pulling mounting seat 221, a wire passing hole plate 222, a wire pulling hole seat 223, a wire pulling guide block 224, a wire pulling cylinder 225 and a first wire clamping cylinder 226. The wire pulling mounting seat 221 is mounted on the machine 1 between the wire straightener 23 and the wire management rack 24. The wire passing hole plate 222 is vertically fixedly mounted on the wire pulling mounting seat 221 close to the wire management rack 24. The wire pulling guide block 224 is horizontally fixedly arranged on the wire pulling mounting seat 221, and the wire pulling guide block 224 is fixedly arranged in the direction of the wire straightener 23. The wire pulling hole seat 223 is slidably connected to the wire pulling guide block 224 through a slider 227, and the wire passing hole of the wire pulling hole seat 223 corresponds to the wire passing hole of the wire passing hole plate 222. The wire pulling cylinder 225 is horizontally arranged on one side between the wire passing hole plate 222 and the wire passing hole seat, and the cylinder body of the wire pulling cylinder 225 is fixed on the wire pulling mounting seat 221 close to the wire passing hole plate 222, the telescopic shaft of the wire pulling cylinder 225 is fixed on the side wall of the wire pulling hole seat 223, and the wire pulling cylinder 225 is arranged parallel to the wire pulling guide block 224. The first wire clamping cylinder 226 is installed on the wire pulling hole seat 223, and the first wire clamping cylinder 226 clamps the wire through the clamping plate and the wire passing hole of the wire pulling hole seat 223. The multiple wires are further concentrated through the wire passing hole plate 222 to facilitate passing through the wire pulling hole seat 223. The first wire clamping cylinder 226 clamps the wire on the wire pulling hole seat 223 through the clamping plate. The wire is pushed toward the wire straightener 23 by the wire pulling cylinder 225. Then the first wire clamping cylinder 226 releases the clamping state. The first wire clamping cylinder 226 drives the wire passing hole seat to move to the initial position, thereby pushing the wire in reciprocatingly.

[0075] Reference Figure 5The wire straightener 23 includes a wire straightening frame 231, a transverse wire straightening mechanism 232 and a longitudinal wire straightening mechanism 233. The transverse wire straightening mechanism 232 and the longitudinal wire straightening mechanism 233 are sequentially arranged on the wire straightening frame 231 along the length direction. The transverse wire straightening mechanism 232 includes a plurality of transverse wire guide wheels 2321, a plurality of transverse wire pressing wheels 2322 and a transverse adjustment assembly for adjusting the distance between the transverse wire pressing wheels 2322 and the transverse wire guide wheels 2321. A plurality of transverse guide wheels are horizontally and rotatably connected to the wire straightening frame 231. The transverse adjustment assembly includes a first adjustment block 2323, a first mounting plate 2324, a first guide block 2325 and a first adjustment rod 2326. The first adjustment block 2323 is horizontally arranged along the length direction of the wire straightening frame 231. A plurality of transverse wire pressing wheels 2322 are horizontally and rotatably connected to the first adjustment block 2323. A plurality of transverse wire pressing wheels 2322 are located above a plurality of transverse wire guide wheels 2321. The transverse wire guide wheels 2321 The first guide block 2325 is vertically fixed on the side wall of the first mounting plate 2324 and is offset from the horizontal wire-pressing wheel 2322. The first adjusting block 2323 is vertically provided with a first guide groove 2327 on the side wall away from the horizontal wire-pressing wheel 2322. The first adjusting block 2323 is slidingly connected to the first guide block 2325 through the first guide groove 2327. The first adjusting rod 2326 is vertically threadedly connected to the first mounting plate 2324, and the first adjusting block 2323 is rotatably connected to the first adjusting rod 2326.

[0076] The longitudinal line straightening mechanism 233 includes a plurality of longitudinal wire wheels 2331, a plurality of longitudinal wire pressing wheels 2332, and a longitudinal adjustment assembly for adjusting the distance between the longitudinal wire wheels 2331 and the longitudinal wire pressing wheels 2332; the plurality of longitudinal wire wheels 2331 are vertically and rotatably connected to the line straightening frame 231, the longitudinal adjustment assembly includes a second adjustment block 2333, a second mounting plate 2334, a second guide block 2335, and a second adjustment rod 2336, the second adjustment block 2333 is horizontally arranged along the length direction of the line straightening frame 231, and the plurality of longitudinal wire pressing wheels 2332 are vertically and rotatably connected to the upper surface of the second adjustment block 2333, And multiple longitudinal wire pressing wheels 2332 are located on one side of multiple longitudinal wire wheels 2331, and the longitudinal wire wheels 2331 and the longitudinal wire pressing wheels 2332 are staggered, the second guide block 2335 is horizontally fixedly set on the upper surface of the second mounting plate 2334, and the side wall of the second adjustment block 2333 away from the longitudinal wire pressing wheel 2332 is horizontally opened with a second guide groove 2337, the second adjustment block 2333 is slidingly connected to the second guide block 2335 through the second guide groove 2337, the second adjustment rod 2336 is horizontally threadedly connected to the second mounting plate 2334, and the second adjustment block 2333 is rotatably connected to the second adjustment rod 2336.

[0077] Two inlet hole seats 234 are fixedly arranged at intervals between the horizontal wire wheel 2321 and the horizontal wire pressing wheel 2322 on the inlet side of the wire tidying frame 231. An outlet hole seat 235 is fixedly arranged at the outlet side of the wire tidying frame 231 corresponding to the longitudinal wire wheel 2331 and the longitudinal wire pressing wheel 2332. Two wire tidying devices 23 are arranged in this embodiment, and the two wire tidying devices 23 are arranged at intervals. The wire drum is placed on the wire drum placement seat 212, and the wire is guided to the wire tidying frame 24 through the first wire hole seat 214 and the second wire hole seat 215. The wires are centrally combed and guided to the wire tidying device 23 through the wire tidying frame 24. After the wires are combed by the wire rack 21 and the wire tidying frame 24, they are centrally combed horizontally and vertically through the horizontal wire tidying mechanism 232 and the longitudinal wire tidying mechanism 233 in the wire tidying device 23, thereby improving the straightness of the wires.

[0078] Reference Figure 6 and Figure 7The wire stripping device 3 includes a wire stripping mechanism 31 and a wire pulling mechanism 32. Specifically, the wire stripping mechanism 31 includes a wire stripping knife 311, a cutting knife 312 and a wire stripping drive assembly 314. The wire stripping knife 311 includes an upper wire stripping knife 3111 and a lower wire stripping knife 3112. The upper wire stripping knife 3111 and the lower wire stripping knife 3112 are arranged opposite to each other up and down, and corresponding wire stripping knife grooves 313 are provided on the upper wire stripping knife 3111 and the lower wire stripping knife 3112. Two upper wire stripping knives 3111 and two lower wire stripping knives 3112 are provided, and the two upper wire stripping knives 3111 and the lower wire stripping knives 3112 are arranged vertically spaced apart. The cutting knife 312 includes an upper cutting knife 3121 and a lower cutting knife 3122 . The upper cutting knife 3121 and the lower cutting knife 3122 are vertically arranged opposite to each other, and the upper cutting knife 3121 is located between the two upper wire stripping knives 3111 , and the lower cutting knife 3122 is located between the two lower wire stripping knives 3112 . The wire stripping drive assembly 314 includes a wire stripping mounting frame 3141, a wire stripping drive motor 3142, a wire stripping screw rod 3143 and a wire stripping movable seat 3144. The wire stripping mounting frame 3141 is vertically mounted on the machine 1, the wire stripping drive motor 3142 is mounted on the upper end of the wire stripping mounting frame 3141, the wire stripping screw rod 3143 is vertically rotatably connected to the wire stripping mounting frame 3141, and the wire stripping screw rod 3143 is reversely threaded from the middle position to both ends, and the output shaft of the wire stripping drive motor 3142 is coaxially fixedly connected to one end of the wire stripping screw rod 3143, two wire stripping movable seats 3144 are provided, and two limit plates 3145 are vertically spaced apart on both sides of the wire stripping mounting frame 3141, and the wire stripping screw rod 3143 is located between the two limit plates 3145. The two wire stripping movable seats 3144 are vertically slidably connected between the two limit plates 3145 and are simultaneously threadedly connected to the wire stripping screw rod 3143. The side walls of the two wire stripping movable seats 3144 are both horizontally fixed with extension mounting arms 3146 extending out of the outside of the wire stripping mounting frame 3141. The upper wire stripping knife 3111 and the upper cutting knife 312 as well as the lower wire stripping knife 3112 and the lower cutting knife 312 are respectively mounted on the two extension mounting arms 3146. A waste collection box 315 with an upper opening is placed on the machine table 1 below the wire stripping knife 311.

[0079] The wire pulling mechanism 32 includes a first wire pulling mechanism 321 and an upper wire pulling mechanism 322, and the wire stripping mechanism 31 is located between the first wire pulling mechanism 321 and the upper wire pulling mechanism 322. The first wire pulling mechanism 321 includes a wire pulling mounting frame 3211, a wire pulling movable seat 3212, a wire pulling screw rod 3213, a wire pulling motor 3214, and a clamping assembly for clamping the wire. The wire pulling mounting frame 3211 is horizontally mounted on the machine 1, and the wire pulling movable seat 3212 is slidably connected to the wire pulling mounting frame 3211 through guide grooves on both sides. The wire pulling screw rod 3213 is horizontally rotatably connected to the wire pulling mounting frame 3211 and is threadedly connected to the wire pulling movable seat 3212. The clamping assembly is mounted on the wire pulling movable seat 3212, and the wire pulling motor 3214 drives the wire pulling screw rod 3213 to rotate so that the clamping assembly is close to or away from the wire stripping mechanism 31. The clamping assembly includes a first clamping jaw cylinder 3215, a first upper clamping block 3216 and a first lower clamping block 3217. The cylinder body of the first clamping jaw cylinder 3215 is fixedly mounted on the wire moving seat 3212, and the first upper clamping block 3216 and the first lower clamping block 3217 are respectively mounted on two clamping jaws of the first clamping jaw cylinder 3215. The first lower clamping block 3217 is provided with a plurality of first wire clamping grooves 3218 at intervals.

[0080] The upper line pulling mechanism 322 includes an upper line mounting frame 3221, an upper line motor 3222, an upper line moving seat 3223, an upper line screw rod 3224, an upper line hole seat 3225 and a second line clamping cylinder 3226. The upper line mounting frame 3221 is horizontally installed on the machine platform 1, and the upper line moving seat 3223 is slidably connected to the upper line mounting frame 3221 through guide grooves on both sides. The upper thread screw rod 3224 is rotatably connected to the upper thread mounting frame 3221 and is threadedly connected to the upper thread moving seat 3223. The upper thread hole seat 3225 is fixedly installed on the upper thread moving seat 3223. The second wire clamping cylinder 3226 is installed on the upper thread hole seat 3225, and the second wire clamping cylinder 3226 intermittently cooperates with the wire passing hole of the upper thread hole seat 3225 through the clamping plate to clamp the wire. The upper thread motor 3222 drives the upper thread screw rod 3224 to rotate so that the upper thread hole seat 3225 is close to or away from the wire stripping mechanism 31.

[0081] The working process of wire stripping: the upper wire hole seat 3225 of the upper wire pulling mechanism 322 cooperates with the second wire clamping cylinder 3226 to clamp the wire, and the upper wire hole seat 3225 is driven by the upper wire motor 3222 to push the wire to the wire stripping mechanism 31. The clamping component in the first wire pulling mechanism 321 is driven by the wire pulling motor 3214 to approach the wire stripping mechanism 31, and the wire end is clamped by the clamping component. The wire stripping drive component 314 in the wire stripping mechanism 31 drives the upper cutting knife 312 and the lower cutting knife 312 to approach and cut the wire. At the same time, the upper wire stripping knife 3111 and the lower wire stripping knife 3112 located on both sides of the cutting knife 312 are close to and clamped on both sides of the wire. At this time, the upper wire motor 3222 drives the upper wire hole seat 3225 to move the wire away from the wire stripping mechanism 31, and the wire pulling motor 3214 drives the clamping assembly to move away from the wire stripping mechanism 31. In the process of the upper wire hole seat 3225 and the clamping assembly driving the wire to move, the upper wire stripping knife 3111 and the lower wire stripping knife 3112 cooperate to strip off the outer skin of the wire end, thereby automatically completing the cleaning of the outer skin of the wire end.

[0082] Reference Figure 8 The wire feeding device 4 includes a wire feeding clamping mechanism 41 and a wire feeding driving mechanism 42. The wire feeding clamping mechanism 41 is connected to the wire feeding driving mechanism 42. The wire feeding clamping mechanism 41 is used to clamp the wire processed by the wire stripping device 3, and the wire feeding driving mechanism 42 drives the wire feeding clamping mechanism 41 to move the wire clamped by the wire feeding clamping mechanism 41 to the top of the material strip placement rack 11. Specifically, the wire feeding clamping mechanism 41 includes a second clamping jaw cylinder 411, a second upper clamping block 412 and a second lower clamping block 413. The second upper clamping block 412 and the second lower clamping block 413 are arranged opposite to each other and are respectively installed on the two clamping jaws of the second clamping jaw cylinder 411. A plurality of second clamping grooves 414 are arranged at intervals on the second lower clamping block 413.

[0083] The wire feeding drive mechanism 42 includes a wire feeding mounting frame 421, a longitudinal driving assembly 422, a vertical driving assembly 423 and a transverse driving assembly 424. The wire feeding mounting frame 421 is mounted on the machine table 1 on one side between the wire stripping device 3 and the welding device 6. The longitudinal driving assembly 422 includes a longitudinal driving motor 4221, a longitudinal guide frame 4222, a longitudinal screw rod 4223 and a longitudinal moving seat 4224. The longitudinal guide frame 4222 is horizontally mounted on the wire feeding mounting frame 421, the longitudinal screw rod 4223 is horizontally rotatably connected to the longitudinal guide frame 4222, the longitudinal moving seat 4224 is slidably connected to the longitudinal guide frame 4222 and is threadedly connected to the longitudinal screw rod 4223, and the longitudinal driving motor 4221 drives the screw rod to rotate. The vertical drive assembly 423 includes a vertical cylinder 4231 and a vertical mounting seat 4232. The vertical cylinder 4231 is vertically mounted on the longitudinal movable seat 4224. The vertical mounting seat 4232 is fixedly mounted on the telescopic shaft of the vertical cylinder 4231. The transverse drive assembly 424 includes a transverse cylinder 4241 and a transverse mounting seat 4242. The transverse cylinder 4241 is horizontally mounted on the side wall of the vertical mounting seat 4232. The transverse mounting seat 4242 is mounted on the telescopic shaft of the transverse cylinder 4241. The cylinder body of the second clamping jaw cylinder 411 is fixed on the side wall of the transverse mounting seat 4242. The transverse drive assembly 424 in the wire feeding drive mechanism 42 drives the second clamping cylinder to approach the wire stripping device 3 to clamp the wire stripped. The wire is transferred to the top of the material belt placement rack 11 through the cooperation of the longitudinal drive assembly 422, the vertical drive assembly 423 and the transverse drive assembly 424.

[0084] Reference Fig. 9 The material belt placement rack 11 includes a bottom plate 111, which is horizontally fixedly mounted on the machine table 1, and a plurality of vertical plates 112 are vertically installed at intervals on both sides of the bottom plate 111. Guide plates 113 are horizontally installed on the opposite vertical plates 112, and guide grooves 114 for guiding the movement of the feeding belt are opened along the length direction on the opposite side walls of the two guide plates 113. The guide grooves 114 on the two guide plates 113 guide the movement of the connecting sheet material belt and the movable spring sheet material belt, thereby improving the stability of the movement of the connecting sheet material belt and the movable spring sheet material belt.

[0085] Reference Fig. 9 and Fig.10 , the wire-releasing device 5 is installed between the two vertical plates 112. Specifically, the wire-releasing device 5 includes a pushing cylinder 51, a connecting seat 52, a third clamping cylinder 53, a third upper clamping block 54 and a third lower clamping block 55, the pushing cylinder 51 is vertically installed on the side wall of one of the vertical plates 112, the third clamping cylinder 53 is horizontally arranged and located above the pushing cylinder 51, the connecting seat 52 is horizontally fixedly installed on the telescopic shaft of the pushing cylinder 51, and the third clamping cylinder 53 is horizontally fixedly installed on the connecting seat 52.

[0086] Reference Fig. 9 and Fig.11 , the third upper clamping block 54 and the third lower clamping block 55 are arranged opposite to each other and fixedly arranged on the two clamping jaws of the third clamping jaw cylinder 53. Two third upper clamping blocks 54 and two third lower clamping blocks 55 are arranged, and the two clamping jaws of the third clamping jaw cylinder 53 are respectively fixedly arranged with an upper connecting block 541 and a lower connecting block 551, and the side walls on both sides of the upper connecting block 541 are horizontally arranged with upper guide blocks 542, and the side walls of the third upper clamping block 54 are provided with adjustment grooves 543 that are slidably connected to the upper guide blocks 542, and the third upper clamping block 54 is fixedly connected to the upper guide blocks 542 by screws. The two third lower clamping blocks 55 are fixedly arranged on the lower connecting block 551, and a plurality of third clamping grooves 552 are spaced apart on the third lower clamping block 55. The two third upper clamping blocks 54 and the two third lower clamping blocks 55 form a clearance opening 56, and the clearance opening 56 is used for the second upper clamping block 412 and the second lower clamping block 413 to make way and insert. The pushing cylinder 51 drives the third clamping jaw cylinder 53 to move upward to the clamping station. At this time, the second upper clamping block 412 and the second lower clamping block 413 are in the make way opening 56 between the third upper clamping block 54 and the third lower clamping block 55. Through the cooperation of the second clamping jaw cylinder 411 and the third clamping jaw cylinder 53, the wire clamping in the clamping assembly is transferred to between the third upper clamping block 54 and the third lower clamping block 55, and then the pushing cylinder 51 drives the third clamping jaw cylinder 53 to move the wire downward to the welding station between the connecting sheet material strip and the movable spring sheet material.

[0087] Further, the material strip placement rack 11 is provided with two positioning and clamping mechanisms 61 for clamping the material strips on both sides of the welding position. When the wire release device 5 is at the welding position, the third upper clamping block 54 and the third lower clamping block 55 are located between the two positioning and clamping mechanisms 61; specifically, the positioning and clamping mechanism 61 includes a clamping cylinder 611 and a positioning pressing plate 612. The clamping cylinder 611 is vertically installed on the side wall of the vertical plate 112, and the positioning pressing plate 612 is horizontally arranged. One side of the lower surface of the positioning pressing plate 612 is fixed to the telescopic shaft of the clamping cylinder 611, and one end of the positioning pressing plate 612 extends downward to have a pressing block 613 pressed against the material strip. There is a gap between the pressing block 613 and the third upper clamping block 54 and the third lower clamping block 55 for the welding device 6 to perform welding. The positioning pressing plate 612 is driven by the clamping cylinder 611 to clamp the material strip at the welding position, thereby improving the stability of the material strip welding, and further improving the accuracy of the welding between the material strip and the wire.

[0088] Reference Fig. 9 and Fig.11The material strip pushing device 7 includes a push rod 71 and a material strip driving mechanism 72 that drives the push rod 71 to drive the material strip to intermittently move on the material strip placement rack 11. The material strip driving mechanism 72 includes a fixed seat 721, an upward push cylinder 722, a horizontal cylinder 723 and a material pushing seat 724. The fixed seat 721 is fixedly installed on the material strip placement rack 11 and is located below the material strip. The cylinder body of the upward push cylinder 722 is installed on the fixed seat 721. The cylinder body of the horizontal cylinder 723 is fixedly connected to the telescopic shaft of the upward push cylinder 722. The material pushing seat 724 is fixedly connected to the telescopic shaft of the horizontal cylinder 723. The push rod 71 is vertically arranged, and the upper end of the push rod 71 is arranged to be a pointed end. The guide plate 113 is provided with a long strip giving way hole 115 along the moving direction of the material strip, and the push rod 71 is arranged corresponding to the long strip giving way hole 115. The upward push cylinder 722 pushes the horizontal cylinder 723 to move upward, so that the push rod 71 on the material pushing seat 724 moves upward to pass through the gap between the material strips, and the push rod 71 is driven to move horizontally by the horizontal cylinder 723, so as to push the material strips to move along the material guide groove 114. In this embodiment, two material strip pushing devices 7 are provided, and the two material strip pushing devices 7 are correspondingly provided on both sides of the material strip placement rack 11, and the material strip pushing devices 7 correspondingly provided on both sides of the material strip placement rack 11 are a group. In this embodiment, two groups of material strip pushing devices 7 are provided at intervals along the length direction of the material strip placement rack 11.

[0089] Reference Fig. 9 and Fig.10 , a welding detection device 8 for detecting the welding quality of the wire is arranged on the material strip placement seat. Specifically, the welding detection device 8 includes a material strip clamping mechanism 81, a point and line inspection mechanism 82 and a detection mechanism 83. The material strip clamping mechanism 81 includes a material pressing cylinder 811 and a material pressing plate 812, the cylinder body of the material pressing cylinder 811 is vertically fixed to the side wall of the vertical plate 112, the material pressing plate 812 is arranged horizontally, one side of the material pressing plate 812 extends to the top of the material pressing cylinder 811 and the telescopic shaft of the material pressing cylinder 811 is fixed to the material pressing plate 812, and the two sides of the lower surface of the material pressing plate 812 are arranged to protrude downward corresponding to the material strip position.

[0090] Reference Fig. 9 and Fig.12 The point and line inspection mechanism 82 includes a vertical frame 821, an inspection cylinder 822, a needle seat 823 and an ejector pin 824. The vertical frame 821 is installed on the machine 1 close to the material strip placement rack 11. The inspection cylinder 822 is installed on one side of the vertical frame 821. A plurality of ejector pins 824 are arranged. The plurality of ejector pins 824 are vertically spaced and installed on the needle seat 823 and extend downward from the needle seat 823. A clearance notch 8121 is provided at the position of the wire corresponding to the pressing plate 812. The ejector pin 824 corresponds to the wire through the clearance notch 8121. The needle seat 823 is connected to the telescopic shaft of the inspection cylinder 822 to push the needle seat 823 to drive the ejector pin 824 to press the wire downward.

[0091] Reference Fig.10The detection mechanism 83 includes a detection bracket 831 and a CCD detector 832. The detection bracket 831 is installed on the machine 1, and the CCD detector 832 is installed on the detection bracket 831. The CCD detector 832 is located on the discharge side above the material strip placement rack 11 and close to the point line inspection mechanism 82. The material pressing cylinder 811 drives the material pressing plate 812 to press the connecting piece material strip and the moving spring piece material strip on both sides. The inspection cylinder 822 drives the needle seat 823 to move downward, so that the ejector pin 824 on the needle seat 823 presses against the wire to check whether the wire is stably welded on the material strip. The material strip pushing device 7 pushes the material strip to the bottom of the CCD detector 832 to check whether the wire is welded on the connecting piece and the moving spring piece.

[0092] Reference Fig.13 The welding device 6 includes a welding bracket 62, a laser welding head 63 and a CCD welding positioner 64. The welding bracket 62 is installed on the machine platform 1. The laser welding head 63 and the CCD welding positioner 64 are installed on the welding bracket 62 and face the welding station of the material strip placement rack 11. The CCD welding positioner 64 collects the information of the contact position between the wire end and the material strip at the welding station and gives it to the laser welding head 63 for precise welding. In other embodiments, laser welding can also be replaced by other welding methods, such as arc welding, gas welding or resistance welding.

[0093] The implementation principle of an automatic welding machine for a relay contact system component of the embodiment of the present application is as follows: the wire loading device 2 guides the wire of the wire barrel to the wire straightener 23 for straightening, and the straightened wire is stripped and cut by the wire stripping knife 311 and the cutting knife 312 in the wire stripping mechanism 31 in cooperation with the wire pulling mechanism 32, and then the wire is clamped by the wire feeding clamping mechanism 41 in the wire feeding mechanism, and the wire feeding clamping mechanism 41 is driven by the wire feeding driving mechanism 42 to transfer the wire to the top of the material belt placement rack 11, and the wire unwinding device 5 transfers the wire to the top of the material belt placement rack 11. The wire moved to the top of the material strip placement rack 11 is clamped and transferred and placed between the connecting piece material strip and the movable spring piece material strip. The two ends of the wire are welded between the connecting piece material strip and the movable spring piece material strip through the laser welding head 63 in the welding device 6, and the welded material strip is pushed forward by the material strip pushing device 7. At the same time, the welding detection device 8 is used to detect whether the wire is welded on the material strip. The above actions are repeated in sequence, thereby automatically completing the welding and detection of the connecting piece, the movable spring piece and the wire, thereby improving the efficiency of welding the wire with the movable spring piece and the connecting piece.

[0094] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic welding machine for relay contact system components, characterized in that: The invention comprises a machine (1), A wire loading device (2), the wire loading device (2) comprising a wire rack (21) and a wire straightener (23), the wire rack (21) being used to place a plurality of wire barrels and simultaneously guide the wires in the plurality of wire barrels to the wire straightener (23) for straightening; A wire stripping device (3), the wire stripping device (3) comprising a wire stripping mechanism (31) and a wire pulling mechanism (32), the wire stripping mechanism (31) clamps a plurality of wires arranged by a wire tidying device (23) through a wire stripping knife (311) and cooperates with the wire pulling mechanism (32) to pull and strip and cut the wires; A material strip placement rack (11), the material strip placement rack (11) is installed on the machine platform (1), the material strip placement rack (11) is used to place the connecting sheet material strip and the dynamic spring sheet material strip, the connecting sheet material strip and the dynamic spring sheet material strip are located on both sides of the material strip placement rack (11); A wire feeding device (4), the wire feeding device (4) being installed on a machine platform (1) between a wire stripping device (3) and a material strip placement rack (11), the wire feeding device (4) comprising a wire feeding clamping mechanism (41) and a wire feeding driving mechanism (42), the wire feeding clamping mechanism (41) being connected to the wire feeding driving mechanism (42), the wire feeding clamping mechanism (41) being used to clamp the wire processed by the wire stripping device (3), and the wire feeding driving mechanism (42) driving the wire feeding clamping mechanism (41) to move the wire clamped by the wire feeding clamping mechanism (41) to above the material strip placement rack (11); A wire unwinding device (5), the wire unwinding device (5) is used to clamp and transfer the wire sent to the top of the material strip placement rack (11) to between the connecting piece material strip and the movable spring piece material strip and make the two ends of the wire contact with the connecting piece and the movable spring piece; A welding device (6), the welding device (6) being mounted on the machine platform (1), the welding device (6) being used to weld the wire connection between the connecting sheet material strip and the dynamic spring sheet material strip at the welding station; A material belt pushing device (7), wherein the material belt pushing device (7) cooperates with the welding device (6) to intermittently push the material belt to move; The material strip placement seat is provided with a welding detection device (8) for detecting the welding quality of the wire; The welding detection device (8) comprises a material strip clamping mechanism (81), a point and line inspection mechanism (82) and a detection mechanism (83); the material strip clamping mechanism (81) comprises a material pressing cylinder (811) and a material pressing plate (812); the cylinder body of the material pressing cylinder (811) is vertically fixed to the side wall of the vertical plate (112); the material pressing plate (812) is horizontally arranged; one side of the material pressing plate (812) extends to the top of the material pressing cylinder (811); the telescopic axis of the material pressing cylinder (811) is fixedly arranged with the material pressing plate (812); and both sides of the lower surface of the material pressing plate (812) are arranged to protrude downwards corresponding to the position of the material strip; The point and line inspection mechanism (82) includes a vertical frame (821), an inspection cylinder (822), a needle seat (823) and an ejector pin (824); the vertical frame (821) is installed on a machine platform (1) close to a material strip placement frame (11); the inspection cylinder (822) is installed on one side of the vertical frame (821); a plurality of ejector pins (824) are provided; the plurality of ejector pins (824) are vertically spaced and installed on the needle seat (823) and extend downward from the needle seat (823); a clearance notch (8121) is provided on the material pressing plate (812) corresponding to the position of the wire; the ejector pin (824) corresponds to the wire through the clearance notch (8121); the needle seat (823) is connected to the telescopic shaft of the inspection cylinder (822) to push the needle seat (823) to drive the ejector pin (824) to press the wire downward; The detection mechanism (83) comprises a detection bracket (831) and a CCD detector (832), wherein the detection bracket (831) is mounted on the machine platform (1), and the CCD detector (832) is mounted on the detection bracket (831), and the CCD detector (832) is located on the discharge side above the material belt placement rack (11) and close to the point line inspection mechanism (82).

2. The automatic welding machine for relay contact system components according to claim 1, characterized in that: The wire rack (21) comprises a frame body (211) and a plurality of wire spool seats (212) arranged on the frame body (211); the frame body (211) located above the wire spool seats (212) is fixedly provided with a plurality of vertical mounting plates (213) at vertical intervals; each of the vertical mounting plates (213) is fixedly provided with a first wire hole seat (214) on both sides corresponding to the wire spool seats (212) below; a plurality of second wire hole seats (215) corresponding to the first wire hole seats (214) are arranged at intervals above the frame body (211); the second wire hole seats (215) face the direction of the wire straightener (23); a wire management frame (24) is arranged between the wire rack (21) and the wire straightener (23); the wire management frame (24) is provided with a plurality of third wire hole seats (242) corresponding to the second wire hole seats (215); The wire straightener (23) comprises a wire straightening frame (231), a transverse wire straightening mechanism (232) and a longitudinal wire straightening mechanism (233), wherein the transverse wire straightening mechanism (232) and the longitudinal wire straightening mechanism (233) are sequentially arranged on the wire straightening frame (231) along the length direction, and the transverse wire straightening mechanism (232) comprises a plurality of transverse wire guide wheels (2321), a plurality of transverse wire pressing wheels (2322) and a transverse adjustment component for adjusting the distance between the transverse wire pressing wheels (2322) and the transverse wire guide wheels (2321); The plurality of transverse wire wheels (2321) are connected to the wire frame (231) in a horizontally spaced rotational manner, the transverse adjustment assembly comprises a first adjustment block (2323), a first mounting plate (2324), a first guide block (2325) and a first adjustment rod (2326), the first adjustment block (2323) is horizontally arranged along the length direction of the wire frame (231), the plurality of transverse wire pressing wheels (2322) are connected to the first adjustment block (2323) in a horizontally spaced rotational manner, and the plurality of transverse wire pressing wheels (2322) are located above the plurality of transverse wire wheels (2321), and the transverse wire wheels (23 21) and the transverse crimping wheel (2322) are staggered, the first guide block (2325) is vertically fixedly arranged on the side wall of the first mounting plate (2324), the first adjusting block (2323) is vertically provided with a first guide groove (2327) on the side wall away from the transverse crimping wheel (2322), the first adjusting block (2323) is slidingly connected to the first guide block (2325) through the first guide groove (2327), the first adjusting rod (2326) is vertically threadedly connected to the first mounting plate (2324), and the first adjusting block (2323) is rotatably connected to the first adjusting rod (2326); The longitudinal wire straightening mechanism (233) comprises a plurality of longitudinal wire guide wheels (2331), a plurality of longitudinal wire pressing wheels (2332), and a longitudinal adjustment component for adjusting the distance between the longitudinal wire guide wheels (2331) and the longitudinal wire pressing wheels (2332); The plurality of longitudinal wire wheels (2331) are vertically spaced and rotatably connected to the wire assembler (231); the longitudinal adjustment assembly comprises a second adjustment block (2333), a second mounting plate (2334), a second guide block (2335) and a second adjustment rod (2336); the second adjustment block (2333) is horizontally arranged along the length direction of the wire assembler (231); the plurality of longitudinal wire pressing wheels (2332) are vertically spaced and rotatably connected to the upper surface of the second adjustment block (2333); the plurality of longitudinal wire pressing wheels (2332) are located on one side of the plurality of longitudinal wire wheels (2331); and the longitudinal wire wheels (2331) are arranged on the upper surface of the plurality of longitudinal wire pressing wheels (2332). 31) and the longitudinal pressing wheel (2332) are staggered, the second guide block (2335) is horizontally fixedly arranged on the upper surface of the second mounting plate (2334), the second adjusting block (2333) is horizontally provided with a second guide groove (2337) on the side wall away from the longitudinal pressing wheel (2332), the second adjusting block (2333) is slidingly connected to the second guide block (2335) through the second guide groove (2337), the second adjusting rod (2336) is horizontally threadedly connected to the second mounting plate (2334), and the second adjusting block (2333) is rotatably connected to the second adjusting rod (2336).

3. An automatic welding machine for relay contact system components according to claim 1 or 2, characterized in that: The wire-feeding device (2) also includes a wire-feeding and pulling mechanism (22), which includes a wire-feeding and pulling mounting seat (221), a wire-passing hole plate (222), a wire-passing hole seat (223), a wire-passing guide block (224), a wire-passing cylinder (225), and a first wire-clamping cylinder (226). The wire-feeding and pulling mounting seat (221) is mounted on the machine platform (1) between the wire rectifier (23) and the wire-management rack (24), the wire-passing hole plate (222) is vertically mounted on the wire-feeding and pulling mounting seat (221) close to the wire-management rack (24), the cylinder body of the wire-feeding and pulling cylinder (225) is fixed on the wire-feeding and pulling mounting seat (221), and the wire-feeding and pulling cylinder (226) is fixed on the wire-feeding and pulling mounting seat (221). The telescopic shaft of (225) is fixed on the wire pulling hole seat (223), the first wire clamping cylinder (226) is installed on the wire pulling hole seat (223), and the first wire clamping cylinder (226) clamps the wire through the clamping plate and the wire passing hole of the wire pulling hole seat (223) intermittently cooperates, the wire pulling guide block (224) is fixedly arranged in the direction of the wire straightener (23), the wire pulling hole seat (223) is slidably connected with the wire pulling guide block (224) through a slider (227), the wire pulling cylinder (225) is located between the wire pulling hole seat (223) and the wire passing hole plate (222), and the wire pulling cylinder (225) and the wire pulling guide block (224) are arranged in parallel.

4. The automatic welding machine for relay contact system components according to claim 1, characterized in that: The wire stripping mechanism (31) further comprises a cutting knife (312) and a wire stripping drive assembly (314); the wire stripping knife (311) comprises an upper wire stripping knife (3111) and a lower wire stripping knife (3112); the upper wire stripping knife (3111) and the lower wire stripping knife (3112) are arranged opposite to each other in an upper and lower position; the upper wire stripping knife (3111) and the lower wire stripping knife (3112) are provided with corresponding wire stripping knife (311) grooves; two of the upper wire stripping knife (3111) and two of the lower wire stripping knife (3112) are arranged; and the two upper wire stripping knives (3111) and the two lower wire stripping knives (3112) are arranged vertically at intervals; The cutting knife (312) comprises an upper cutting knife (3121) and a lower cutting knife (3122), wherein the upper cutting knife (3121) and the lower cutting knife (3122) are arranged vertically opposite to each other, and the upper cutting knife (3121) is located between the two upper wire stripping knives (3111), and the lower cutting knife (3122) is located between the two lower wire stripping knives (3112); The stripping drive assembly (314) comprises a stripping mounting frame (3141), a stripping drive motor (3142), a stripping screw rod (3143) and a stripping movable seat (3144); the stripping mounting frame (3141) is vertically mounted on the machine platform (1); the stripping drive motor (3142) is mounted on the upper end of the stripping mounting frame (3141); the stripping screw rod (3143) is vertically rotatably connected to the stripping mounting frame (3141); and the stripping screw rod (3143) is reversely threaded from the middle position to both ends. The output shaft of the wire stripping drive motor (3142) is coaxially fixedly connected to one end of the wire stripping screw rod (3143), two wire stripping movable seats (3144) are provided, the two wire stripping movable seats (3144) are vertically slidably connected to the wire stripping mounting frame (3141) and are simultaneously threadedly connected to the wire stripping screw rod (3143), and the upper wire stripping knife (3111) and the upper cutting knife (312) as well as the lower wire stripping knife (3112) and the lower cutting knife (312) are respectively installed on the two wire stripping movable seats (3144); The wire pulling mechanism (32) comprises a first wire pulling mechanism (321) and an upper wire pulling mechanism (322), wherein the first wire pulling mechanism (321) and the upper wire pulling mechanism (322) are located on both sides of the wire stripping knife (311); The first wire pulling mechanism (321) comprises a wire pulling mounting frame (3211), a wire pulling movable seat (3212), a wire pulling screw (3213), a wire pulling motor (3214) and a clamping assembly for clamping a wire, wherein the wire pulling mounting frame (3211) is horizontally mounted on the machine platform (1), the wire pulling movable seat (3212) is slidably connected to the wire pulling mounting frame (3211), the wire pulling screw (3213) is horizontally rotatably connected to the wire pulling mounting frame (3211) and is threadedly connected to the wire pulling movable seat (3212), the clamping assembly is mounted on the wire pulling movable seat (3212), and the wire pulling motor (3214) drives the wire pulling screw (3213) to rotate so that the clamping assembly approaches or moves away from the wire stripping mechanism (31); The clamping assembly comprises a first clamping jaw cylinder (3215), a first upper clamping block (3216) and a first lower clamping block (3217); the cylinder body of the first clamping jaw cylinder (3215) is fixedly mounted on the wire moving seat (3212); the first upper clamping block (3216) and the first lower clamping block (3217) are respectively mounted on two clamping jaws of the first clamping jaw cylinder (3215); The upper thread pulling mechanism (322) comprises an upper thread mounting frame (3221), an upper thread motor (3222), an upper thread moving seat (3223), an upper thread screw rod (3224), an upper thread hole seat (3225) and a second thread clamping cylinder (3226); the upper thread mounting frame (3221) is horizontally mounted on the machine platform (1); the upper thread moving seat (3223) is horizontally slidably connected to the upper thread mounting frame (3221); the upper thread screw rod (3224) is rotatably connected to the upper thread mounting frame (3221); The upper thread movable seat (3223) is threadedly connected to the upper thread hole seat (3225), the upper thread hole seat (3225) is fixedly mounted on the upper thread movable seat (3223), the second wire clamping cylinder (3226) is mounted on the upper thread hole seat (3225), and the second wire clamping cylinder (3226) intermittently cooperates with the wire hole of the upper thread hole seat (3225) through the clamping plate to clamp the wire, and the upper thread motor (3222) drives the upper thread screw rod (3224) to rotate so that the upper thread hole seat (3225) is close to or away from the wire stripping mechanism (31).

5. The automatic welding machine for relay contact system components according to claim 1, characterized in that: The wire feeding clamping mechanism (41) comprises a second clamping jaw cylinder (411), a second upper clamping block (412) and a second lower clamping block (413); the second upper clamping block (412) and the second lower clamping block (413) are arranged opposite to each other and are respectively mounted on two clamping jaws of the second clamping jaw cylinder (411); The wire feeding drive mechanism (42) comprises a wire feeding mounting frame (421), a longitudinal driving assembly (422), a vertical driving assembly (423) and a transverse driving assembly (424); the wire feeding mounting frame (421) is mounted on the machine platform (1) on one side between the wire stripping device (3) and the welding device (6); The longitudinal drive assembly (422) comprises a longitudinal drive motor (4221), a longitudinal guide frame (4222), a longitudinal screw rod (4223) and a longitudinal movable seat (4224); the longitudinal guide frame (4222) is horizontally mounted on the wire feeding mounting frame (421); the longitudinal screw rod (4223) is horizontally rotatably connected to the longitudinal guide frame (4222); the longitudinal movable seat (4224) is slidably connected to the longitudinal guide frame (4222) and is threadedly connected to the longitudinal screw rod (4223); and the longitudinal drive motor (4221) drives the screw rod to rotate; The vertical drive assembly (423) comprises a vertical cylinder (4231) and a vertical mounting seat (4232), wherein the vertical cylinder (4231) is vertically mounted on the longitudinal moving seat (4224), and the vertical mounting seat (4232) is fixedly mounted on the telescopic shaft of the vertical cylinder (4231); The transverse drive assembly (424) includes a transverse cylinder (4241) and a transverse mounting seat (4242), wherein the transverse cylinder (4241) is horizontally mounted on the side wall of the vertical mounting seat (4232), and the transverse mounting seat (4242) is mounted on the telescopic shaft of the transverse cylinder (4241), and the cylinder body of the second clamping jaw cylinder (411) is fixed on the side wall of the transverse mounting seat (4242).

6. The automatic welding machine for relay contact system components according to claim 1, characterized in that: The material belt placement rack (11) comprises a bottom plate (111), a plurality of vertical plates (112) are vertically installed at intervals on both sides of the bottom plate (111), guide plates (113) are horizontally installed on the two vertical plates (112), and guide grooves (114) for the movement of the feeding belt are provided on the opposite side walls of the two guide plates (113) along the length direction.

7. The automatic welding machine for relay contact system components according to claim 5, characterized in that: The wire-releasing device (5) comprises a pushing cylinder (51), a connecting seat (52), a third clamping cylinder (53), a third upper clamping block (54) and a third lower clamping block (55); the pushing cylinder (51) is vertically mounted on the material strip placement rack (11); the third clamping cylinder (53) is horizontally arranged and located above the pushing cylinder (51); the connecting seat (52) is fixedly mounted on the telescopic shaft of the pushing cylinder (51); the third clamping cylinder (53) is fixedly mounted on the connecting seat (52); the third upper clamping block (54) and the third lower clamping block (55) are arranged opposite to each other and are respectively fixedly mounted on the two clamping jaws of the third clamping cylinder (53); the third upper clamping block (54) and the third lower clamping block (55) are provided with a clearance opening (56); the clearance opening (56) is for the second upper clamping block (412) and the second lower clamping block (413) to be inserted.

8. The automatic welding machine for relay contact system components according to claim 7, characterized in that: The material strip placement rack (11) is provided with two positioning and clamping mechanisms (61) for clamping the material strips on both sides of the welding position; when the wire-releasing device (5) is in the welding position, the third upper clamping block (54) and the third lower clamping block (55) are located between the two third positioning and clamping mechanisms (61); The positioning and clamping mechanism (61) comprises a clamping cylinder (611) and a positioning pressure plate (612); the clamping cylinder (611) is vertically mounted on the side wall of the vertical plate (112); the positioning pressure plate (612) is horizontally arranged; one side of the lower surface of the positioning pressure plate (612) is fixed to the telescopic shaft of the clamping cylinder (611); and one end of the positioning pressure plate (612) extends downward to have a pressure block (613) pressed against the material strip.

9. The automatic welding machine for relay contact system components according to claim 6, characterized in that: The material belt pushing device (7) comprises a push rod (71) and a material belt driving mechanism (72) for driving the push rod (71) to drive the material belt to move intermittently on the material belt placement rack (11). The material belt driving mechanism (72) comprises a fixed seat (721), an upward push cylinder (722), a horizontal cylinder (723) and a material pushing seat (724). The fixed seat (721) is fixedly mounted on the material belt placement rack (11) and is located below the material belt. The cylinder body of the cylinder (722) is installed on the fixed seat (721), the cylinder body of the horizontal cylinder (723) is fixedly connected to the telescopic shaft of the upward pushing cylinder (722), the pushing seat (724) is fixedly connected to the telescopic shaft of the horizontal cylinder (723), the push rod (71) is vertically arranged, the guide plate (113) is provided with a long strip of clearance hole (115) along the moving direction of the material belt, and the push rod (71) is arranged corresponding to the long strip of clearance hole (115).

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