A multi-core wire double-row automatic welding machine

Abstract

The present invention relates to a multi-core wire double-row automatic welding machine, which includes a frame. A fixture transfer mechanism, a tin dipping mechanism, a conveying and circulating mechanism, and a blanking mechanism are sequentially arranged on the frame from left to right. A fixture installed with core wires and connectors is provided on the fixture transfer mechanism. Opposite to the fixture transfer mechanism, there is a cutting and peeling mechanism for processing double-row core wires. A fixture transfer mechanism is arranged between the fixture transfer mechanism and the conveying and circulating mechanism. On one side of the conveying and circulating mechanism, there are a rotary alignment mechanism for aligning and assembling core wires and connectors and a double-head welding mechanism for welding double-row core wires and connectors. On the other side, there is a fixture flipping mechanism, and the position of the fixture flipping mechanism corresponds to that of the double-head welding mechanism. The present invention realizes automatic peeling and cutting, automatic tin dipping, automatic assembly, automatic welding, and automatic blanking, with a high degree of automation. The operation is reduced from eight people originally to one person, reducing labor costs and alleviating the operation intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and particularly to a multi-core wire double-row automatic welding machine. Background Art

[0002] Data cables are very important accessories, with functions of transmitting video, audio or digital signals and carrying charging current.

[0003] Existing data cables applied to connect electronic devices such as laptop computers, digital cameras, mobile phones, etc. are composed of several metal core wires. When the cable is connected to other electronic devices through terminals, first, the core wires need to be peeled, heated and pre-tinned, and then the tinned core wire connectors are welded to the connectors. Since multi-row core wire welding is required on a four-row welding position connector, the current equipment can only solve the automatic welding of single-row core wires. It is very difficult to perform automatic welding on the outer double rows of a four-row welding position connector. First, two rows of core wires (i.e., the second row and the third row of core wires) have been welded at the center position of the connector. How to avoid the position of the connector during the processes of peeling, tinning, and wire cutting for the first row and the fourth row (outer double rows) of core wires without interfering with the two rows of core wires that have already been welded to the connector. At the same time, due to the small size of the connector, the connector with two rows of core wires welded and the first row and the fourth row of core wires need to be automatically aligned. The space between each row of the four-row welding position connector is narrow, and ordinary positioning and welding equipment cannot perform positioning, clamping, and avoiding interference. The current core wire automatic welding machines on the market cannot solve the above problems. Therefore, the welding of the outer double rows of core wires still remains at the manual welding level.

[0004] Therefore, a multi-core wire double-row automatic welding machine is proposed to solve the above problems. Summary of the Invention

[0005] To solve the above problems, the present invention provides a multi-core wire double-row automatic welding machine with high automation, low labor cost, low labor intensity, high assembly efficiency, and good finished product quality.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: A multi-core wire double-row automatic welding machine includes a frame. A fixture transfer mechanism, a tinning mechanism, a conveying and circulating mechanism, and a blanking mechanism are sequentially arranged on the frame from left to right. A fixture installed with core wires and connectors is provided on the fixture transfer mechanism. A cutting and peeling mechanism for processing double-row core wires is arranged opposite to the fixture transfer mechanism. A fixture transfer mechanism is provided between the fixture transfer mechanism and the conveying and circulating mechanism. A rotary alignment mechanism for aligning and assembling core wires and connectors and a double-head welding mechanism for welding double-row core wires and connectors are arranged on one side of the conveying and circulating mechanism. A fixture flipping mechanism is arranged on the other side. The rotary alignment mechanism is arranged on the left side of the double-head welding mechanism, and the position of the fixture flipping mechanism corresponds to that of the double-head welding mechanism.

[0007] Preferably, the fixture includes a positioning plate, a core wire clamping assembly for installing double-row core wires and a connector fixing frame for installing a connector. The positioning plate is provided with a positioning seat, and the core wire clamping assembly is movably connected to the positioning seat. The positioning plate is also vertically connected to a fixing plate, and the connector fixing frame is movably connected to the fixing plate.

[0008] Preferably, the fixture transfer mechanism includes a transverse movement mechanism, a rotation mechanism, a transfer mechanism and a clamping mechanism. The transverse movement mechanism is arranged on the frame, the rotation mechanism and the transfer mechanism move on the transverse movement mechanism through a connecting seat, and the clamping mechanism is respectively connected to the rotation mechanism and the transfer mechanism.

[0009] Preferably, the cutting and stripping mechanism includes a first bracket, a first core wire pressing mechanism, a second core wire pressing mechanism, a first stripping and cutting mechanism, a second stripping and cutting mechanism and a tongue pushing mechanism. The first bracket is arranged on the frame, and the tongue pushing mechanism is arranged on the first bracket. The first core wire pressing mechanism and the first stripping and cutting mechanism are respectively arranged above the tongue pushing mechanism, and the second core wire pressing mechanism and the second stripping and cutting mechanism are respectively arranged below the tongue pushing mechanism. The first core wire pressing mechanism corresponds to the second core wire pressing mechanism, and the first stripping and cutting mechanism corresponds to the second stripping and cutting mechanism.

[0010] Preferably, the tin immersion mechanism comprises a tin furnace, a tin slag scraping mechanism and a rosin mechanism. The tin furnace is arranged on a frame, and the tin slag scraping mechanism and the rosin mechanism are respectively arranged on one side of the tin furnace.

[0011] Preferably, the conveying circulation mechanism includes a circulating transmission belt mechanism, a carrier and a servo motor, the circulating transmission belt mechanism is arranged on the frame, the servo motor is connected to the circulating transmission belt mechanism, and several carriers are arranged on the circulating transmission belt mechanism. The carrier includes a base, a rotating rod and a clamping block. Four pulleys are provided at the bottom of the base, the base is connected to the circulating transmission belt mechanism and slides on the circulating transmission belt mechanism through the pulleys, the rotating rod can be rotatably passed through the base, one end of the rotating rod is connected to the clamping block, and the other end is provided with a clamping groove clamped with the clamp flipping mechanism, and the front end of the clamping block is provided with a slot for clamping the clamp.

[0012] Preferably, the rotary alignment mechanism includes a third bracket, a push-pull mechanism and a separation mechanism. The third bracket is arranged on the frame. The push-pull mechanism includes a push-pull cylinder, a push-pull plate and a slide rail. The push-pull cylinder is arranged on the third bracket. The push-pull plate is connected to the push-pull cylinder. The slide rail is slidably arranged on the third bracket and connected to the push-pull plate. A stopper is vertically connected to the rear end of the slide rail. The baffle is arranged behind the connector fixing bracket of the fixture. The separation mechanism includes a movable cylinder and a cam plate for driving two core wire clamping assemblies to open or close. The movable cylinder is fixedly arranged on the third bracket. The cam plate is in transmission connection with the movable cylinder.

[0013] Preferably, the double-head welding mechanism includes a fourth bracket, a displacement mechanism and a welding mechanism. The fourth bracket is arranged on the frame. The displacement mechanism is arranged on the fourth bracket. Two welding mechanisms are arranged on the displacement mechanism.

[0014] Preferably, the fixture flipping mechanism includes a flipping motor and a limiting shaft. The flipping motor is arranged on the circulating transmission belt mechanism. The limiting shaft is in transmission connection with the flipping motor. The limiting shaft is provided with a clamping mouth for clamping the carrier.

[0015] Preferably, the blanking mechanism includes a translation mechanism, a rotation mechanism, a lifting mechanism and a clamping mechanism. The translation mechanism is arranged on the frame. The rotation mechanism is arranged on the translation mechanism. The lifting mechanism is arranged on the rotation mechanism. The clamping mechanism is arranged on the lifting mechanism.

[0016] The beneficial effects of the present invention are as follows: The present invention realizes the simultaneous automatic peeling and cutting, automatic tin dipping, automatic assembly of the double-row core wires (25 core wires) on the outer side of the connector with four rows of welding positions, the pre-alignment treatment of the core wire conductors and the connector before welding, the automatic welding of the front and back sides of the connector and the double-row core wires on the outer side, and the automatic blanking of the cable. The degree of automation is high. The operation is reduced from eight people to one person originally, reducing the labor cost and alleviating the operation intensity.

[0017] The assembly operation time of a single product is shortened by 225S, greatly shortening the operation duration.

[0018] The fixture can complete the whole processing by clamping the workpiece to be processed once. After only clamping the two outer rows of core wires into the core wire clamping grooves and cooperating with the automation equipment to perform tangent cutting, peeling and dipping treatment on the clamped core wires, then opening the fixture through the automation equipment, the connector fixing bracket is screwed tightly into the fixture under the push of the automation equipment, and the double-row core wires on the outer side are pre-aligned with the connectors on the connector fixing bracket, and then welded through the automation equipment. During the whole processing period, there is no need to disassemble the fixture to re-arrange the wires for positioning. The existing fixture structure cannot cooperate with the automation equipment for continuous processing without stopping the line, reducing the processing error, improving the processing efficiency and the quality of the finished product. Description of the Drawings

[0019] Figure 1 is the three-dimensional schematic diagram of the present invention.

[0020] Figure 2 is the three-dimensional structure diagram of the present invention.

[0021] Figure 3 is Figure 2 the enlarged view of part A of

[0022] Figure 4 is Figure 2 the enlarged view of part B of

[0023] Figure 5 is Figure 2 the enlarged view of part C of

[0024] Figure 6 is Figure 2 the enlarged view of part D of

[0025] Figure 7 is Figure 2 the enlarged view of part E of

[0026] Figure 8 is the structural schematic diagram of the cutting and peeling mechanism.

[0027] Figure 9 is the structural schematic diagram of the rotary alignment mechanism.

[0028] Figure 10 is the three-dimensional structure diagram of the fixture.

[0029] Figure 11 is the exploded structure diagram of the fixture.

[0030] Figure 12 is the exploded structure diagram of the core wire clamping assembly.

[0031] Figure 13 is the structural schematic diagram of the connector fixing bracket.

[0032] Figure 14 is the structural schematic diagram of the fixing plate.

[0033] Figure 15 is the fixture schematic diagram for the assembly of the core wire and the connector.

[0034] Description of reference numerals: 1. Frame; 2. Fixture transfer mechanism; 21. Transverse movement mechanism; 22. Rotation mechanism; 23. Transfer mechanism; 24. Clamping mechanism; 3. Cutting and peeling mechanism; 31. First bracket; 32. First core wire pressing mechanism; 33. Second core wire pressing mechanism; 34. First peeling and cutting mechanism; 35. Second peeling and cutting mechanism; 36. Tongue piece pushing mechanism; 4. Fixture transfer mechanism; 5. Conveyor circulation mechanism; 51. Circulating conveyor belt mechanism; 52. Carrier; 6. Rotary alignment mechanism; 61. Third bracket; 62. Pushing and pulling mechanism; 621. Pushing and pulling cylinder; 622. Pushing and pulling plate; 623. Slide rail; 63. Separation mechanism; 631. Moving cylinder; 632. Cam plate; 6321. Arrow-shaped block; 6322. Y-shaped guide groove; 7. Double-head welding mechanism; 71. Fourth bracket; 72. Displacement mechanism; 73. Welding mechanism; 8. Fixture flipping mechanism; 81. Flipping motor; 82. Limit shaft; 821. Clamping opening; 9. Blanking mechanism; 91. Translation mechanism; 92. Rotation mechanism; 93. Lifting mechanism; 94. Clamping mechanism; 10. Machine shell; 20. Electric control device; 30. Fixture; 301. Positioning plate; 302. Core wire clamping assembly; 3021. Clamping plate; 3022. Pressing plate; 3023. Core wire spring clip; 3024. Transmission bearing; 3025. First buckle; 3026. Second buckle; 303. Connector fixing bracket; 3031. Swing arm; 3032. Fixed block; 30321. Slot; 3033. First limit block; 3034. Second limit block; 304. Positioning seat; 305. Fixed plate; 3051. First positioning block; 3052. Second positioning block; 3053. Third positioning block; Detailed implementation manners

[0035] Please refer to Figures 1 - 15As shown in the figure, the present invention relates to a multi-core wire double-row automatic welding machine, which includes a frame 1. On the frame 1, a fixture transfer mechanism 2, a tin dipping mechanism, a conveying and circulating mechanism 5 and a blanking mechanism 9 are sequentially arranged from left to right. Opposite to the fixture transfer mechanism 2, there is a cutting and peeling mechanism 3. Between the fixture transfer mechanism 2 and the conveying and circulating mechanism 5, there is a fixture transfer mechanism 4. On one side of the conveying and circulating mechanism 5, there are a rotary alignment mechanism 6 and a double-head welding mechanism 7, and on the other side, there is a fixture flipping mechanism 8. The rotary alignment mechanism 6 is arranged on the left side of the double-head welding mechanism 7, and the position of the fixture flipping mechanism 8 corresponds to that of the double-head welding mechanism 7. Clamp the fixture 30 with the core wire and the connector installed on the fixture transfer mechanism 2. The fixture transfer mechanism 2 drives the fixture 30 to move to the cutting and peeling mechanism 3 to process the core wire, and then drives the fixture 30 to move to the tin dipping mechanism to dip the core wire in tin. After the processing is completed, it is transferred to the fixture transfer mechanism 4. The fixture transfer mechanism 4 then transfers the fixture 30 to the conveying and circulating mechanism 5. The conveying and circulating mechanism 5 drives the fixture 30 to move to the rotary alignment mechanism 6 to align and install the core wire and the connector. Then it moves to the double-head welding mechanism 7 and the fixture flipping mechanism 8. First, the double-head welding mechanism 7 welds the front side of the product, that is, welds a row of core wires and the connector distributed on the same side of the fixture 30. Then, the fixture 30 is flipped by the fixture flipping mechanism 8, and then the double-head welding mechanism 7 welds the reverse side of the product, that is, welds a row of core wires and the connector distributed on the other side of the fixture 30. After the welding process is completed, the conveying and circulating mechanism 5 drives the fixture 30 to move to the blanking mechanism 9. The blanking mechanism 9 clamps and transfers the fixture 30 to the collection station. Finally, the staff takes out the finished product from the fixture 30.

[0036] The fixture 30 and the rotary alignment mechanism 6 avoid the position of the connector with the second and third rows of core wires welded in a very limited space, and the double-head welding mechanism welds the first row and the fourth row of wires on the connector.

[0037] When the first row and the fourth row of core wires are arranged simultaneously, the connector needs to be avoided. The fixture 30 is used to arrange the connector at a 90-degree angle on one side of the first row and the fourth row of core wires. Since the connector needs to avoid the position and the pressing of the core wires is restricted, but the peeling process requires overcoming the peeling tension of the entire row of core wires on both sides. Since the first row and the fourth row of core wires need to be peeled at one time (a total of 25 core wires), the structure of the fixture 30 effectively prevents the core wires from sliding during peeling. At the same time, there is a tongue piece in front of the peeling knife that is squeezed between the pressing plates of the two rows of core wires to increase the pressing force of the core wires so as to overcome the tension during the peeling process. After the second row and the third row of core wires are welded to the connector, when arranging the first row and the fourth row of core wires, the first row and the fourth row of core wires are at a 90-degree angle to the second row and the third row of core wires. After the wiring is completed, the first row and the fourth row of core wires need to be peeled, tinned, and cut. After the above processes are completed by the fixture 30, the rotary alignment mechanism 6 is used to half-open the fixture, rotate the connector into the fixture 30, so that the first row and the fourth row of core wires are in the same axial direction as the connector, that is, parallel to the second row and the third row of core wires, and the first row and the fourth row of core wires need to be aligned and positioned with the connector. When the connector head is rotated and placed in the fixture, and then the fixture is closed again.

[0038] Preferably, a machine shell 10 is further provided on the frame 1. The machine shell 10 includes a frame and a glass window, and a plurality of glass windows are embedded in the frame.

[0039] Preferably, as Figures 10 - 15 shown, the fixture 30 includes a positioning plate 301, a core wire clamping assembly 302 and a connector fixing bracket 303. A positioning seat 304 is provided on the positioning plate 301, and the core wire clamping assembly 302 is movably connected to the positioning seat 304. A fixing plate 305 is vertically connected to the positioning plate 301, and the connector fixing bracket 303 is movably connected to the fixing plate 305. The connector is installed on the connector fixing bracket 303, and the cable assembly is installed on the fixing plate 305. The core wires of the cable assembly are arranged on the core wire clamping assembly 302.

[0040] Preferably, the core wire clamping assembly 302 includes a clamping plate 3021, a pressing plate 3022, a core wire spring clip 3023 and a transmission bearing 3024. The two clamping plates 3021 are respectively rotated on the positioning seat 304 through pins. The pressing plate 3022 is rotatably connected to the clamping plate 3021. Core wire spring clips 3023 are respectively provided on the two clamping plates 3021 corresponding to each other. A plurality of core wire clip grooves are distributed on the core wire spring clip 3023. The two rows of core wires are respectively arranged in the core wire clip grooves of the two core wire spring clips 3023. The pressing plate 3022 is attached to the clamping plate 3021 to prevent the core wires from detaching. The two transmission bearings 3024 are respectively arranged on the same side of the two clamping plates 3021.

[0041] Preferably, the connector fixing frame 303 includes a swing arm 3031 and a fixed block 3032, one end of the swing arm 3031 is rotatably connected to the fixed plate 305 by a pin, and the fixed block 3032 is connected to the other end of the swing arm 3031, and a slot 30321 is provided on the fixed block 3032, and a first limit block 3033 and a second limit block 3034 are provided above the slot 30321. When the connector is inserted into the slot 30321, the first limit block 3033 and the second limit block can limit the movement of the connector, thereby fixing the position of the connector.

[0042] Preferably, the fixing plate 305 is provided with a first positioning block 3051 and a second positioning block 3052, the first positioning block 3051 is fixed on the fixing plate 305, the second positioning block 3052 is rotatably provided on the second fixing plate 305 through a pin shaft, an open positioning groove is formed between the first positioning block 3051 and the second positioning block 3052, and the positioning groove is used to fix the cable assembly, and the fixing plate 305 is also provided with a third positioning block 3053, the third positioning block 3053 is arranged in front of the first positioning block 3051 and the second positioning block 3052, and the third positioning block 3053 is provided with an open positioning hole, and the positioning hole is used to constrain the core wire to prevent the core wire from spreading.

[0043] Preferably, a rotatable first buckle 3025 is respectively provided on the two clamping plates 3021. When the clamping plate 3022 is pressed on the surface of the clamping plate 3021, the first buckle 3025 can clamp the clamping plate 3022 to fix its position. The clamping plate 3022 can be separated by pushing away the first buckle 3025.

[0044] Preferably, a rotatable second buckle 3026 is provided on one of the splints 3021, and a slot corresponding to the second buckle 3026 is provided on the other splint 3021. When the two splints 3021 rotate inward relative to each other, the second buckle 3026 passes through the slot and clamps the surface of the other splint 3021, so that the positions of the two splints 3021 are relatively fixed.

[0045] Preferably, if Figure 3As shown, the fixture transfer mechanism 2 includes a transverse movement mechanism 21, a rotation mechanism 22, a transfer mechanism 23 and a clamping mechanism 24. The transverse movement mechanism 21 includes a fixed seat and a transverse movement motor. The fixed seat is arranged on the frame 1, and the transverse movement motor is arranged on the fixed seat. The transverse movement motor is drivingly connected to a transmission lead screw which is rotatably arranged on the fixed seat. The transmission lead screw is connected with a connecting plate through a lead screw nut. The rotation mechanism 22 and the transfer mechanism 23 are connected to the connecting plate through a connecting seat. The transfer mechanism 23 includes a transfer motor, a first transmission shaft, a transfer plate, a gear and a rack. The transfer motor is arranged on the connecting seat. The first transmission shaft is drivingly connected to the transfer motor. The gear is sleeved on the first transmission shaft. The rack is arranged in the transfer plate. The first transmission shaft drives the transfer plate to move through the meshing of the gear and the rack. The rotation mechanism 22 includes a rotation motor, a driving gear, a driven gear, a second transmission shaft and a rotation plate. The second transmission shaft is sleeved outside the first transmission shaft through a bearing. The rotation motor is arranged on the connecting seat. The driving gear is arranged on the rotating shaft of the rotation motor. The driven gear is arranged on the second transmission shaft. The driving gear and the driven gear are drivingly connected through a synchronous belt. The rotation plate is connected to the second transmission shaft. The transfer plate moves directionally in the rotation plate. The clamping mechanism 24 is connected to the transfer plate. The clamping mechanism 24 can clamp the fixture 30. The transverse movement motor drives the transmission lead screw to rotate. By using the cooperation of the transmission lead screw and the lead screw nut, the connecting seat is driven to move left and right, so that the rotation mechanism 22, the transfer mechanism 23 and the clamping mechanism 24 arranged on the connecting seat move left and right together. The transfer motor drives the first transmission shaft to rotate. By using the meshing transmission of the gear and the rack, the transfer plate is driven to move back and forth in the rotation plate, thereby driving the clamping mechanism 24 to move back and forth. The rotation motor drives the second transmission shaft to rotate through the synchronous belt, and the rotation plate rotates together with the second transmission shaft, so as to rotate the fixture 30 clamped on the clamping mechanism 24 into the soldering tin dipping mechanism for soldering tin dipping treatment.

[0046] Preferably, as Figure 8As shown, the cutting and peeling mechanism 3 includes a first bracket 31, a first core wire pressing mechanism 32, a second core wire pressing mechanism 33, a first peeling and cutting mechanism 34, a second peeling and cutting mechanism 35, and a tongue piece pushing mechanism 36. The first bracket 31 is arranged on the frame 1, the tongue piece pushing mechanism 36 is arranged on the first bracket 31, the first core wire pressing mechanism 32 and the first peeling and cutting mechanism 34 are respectively arranged above the tongue piece pushing mechanism 36, the second core wire pressing mechanism 33 and the second peeling and cutting mechanism 35 are respectively arranged below the tongue piece pushing mechanism 36. The first core wire pressing mechanism 32 corresponds to the second core wire pressing mechanism 33, and the first peeling and cutting mechanism 34 corresponds to the second peeling and cutting mechanism 35. To overcome the peeling tension, the tongue piece pushing mechanism 36 pushes the tongue piece between the two core wire clamping components 302 of the fixture 30. The first core wire pressing mechanism 32 and the second core wire pressing mechanism 33 press and straighten the core wire, and the first peeling and cutting mechanism 34 and the second peeling and cutting mechanism 35 perform peeling and cutting treatment on the core wire.

[0047] Preferably, the soldering dipping mechanism includes a soldering furnace, a solder dross scraping mechanism, and a rosin mechanism. The soldering furnace is arranged on the frame 1, and the solder dross scraping mechanism and the rosin mechanism are respectively arranged on one side of the soldering furnace.

[0048] Preferably, as Figure 4 shown, the conveying and circulating mechanism 5 includes a circulating belt mechanism 51, a carrier 52, and a servo motor. The circulating belt mechanism 51 includes a second bracket, a chain, and a transmission gear. The left and right ends of the second bracket are respectively provided with connecting shafts. The two connecting shafts are respectively rotatably arranged in the second bracket through bearings. The two transmission gears are respectively arranged on the two connecting shafts. The chain is in transmission connection with the two transmission gears. A plurality of connecting blocks are distributed on the chain. The servo motor is arranged on the second bracket and is in transmission connection with one of the connecting shafts. The carrier 52 includes a base, a rotating rod, and a clamping block. Four pulleys are arranged at the bottom of the base. The pulleys roll in the chute in the second bracket. The base is fixedly connected with the connecting block on the chain. The rotation of the chain drives the base to move directionally on the second bracket. The rotating rod is rotatably penetrated through the base. One end of the rotating rod is connected with the clamping block, and the other end is provided with a clamping groove for facilitating cooperation with the fixture flipping mechanism 8. A slot 30321 is opened at the front end of the clamping block for facilitating the insertion and installation of the fixture 30.

[0049] Preferably, as Figure 9As shown, the rotation alignment mechanism 6 includes a third bracket 61, a push-pull mechanism 62 and a separation mechanism 63, the third bracket 61 is arranged on the frame 1, the push-pull mechanism 62 includes a push-pull cylinder 621, a push-pull plate 622 and a slide rail 623, the push-pull cylinder 621 is arranged on the third bracket 61, the push-pull plate 622 is connected to the push-pull cylinder 621, the slide rail 623 is slidably arranged on the third bracket 61 and connected to the push-pull plate 622, and the rear end of the slide rail 623 is vertically connected to the push-pull plate 622. The stopper is connected to the third bracket 61, and the stopper is arranged behind the connector fixing frame 303 of the clamp 30. The separation mechanism 63 includes a movable cylinder 631 and a cam plate 632. The movable cylinder 631 is fixed on the third bracket 61. The cam plate 632 is connected to the movable cylinder 631 in a transmission manner. The cam plate 632 is provided with an arrow-shaped block 6321 and a Y-shaped guide groove 6322. When the conveying circulation mechanism 5 drives the clamp 30 to move to the rotating alignment mechanism 6, the movable cylinder 631 drives the cam plate 632 to rotate. 2 moves, the arrow-shaped block 6321 of the cam plate 632 is inserted between the transmission bearings 3024 of the two core wire clamping assemblies 302, and the two transmission bearings 3024 slide along the Y-shaped guide groove 6322. The second buckle 3026 is subjected to external force and rotates outward to leave the surface of the clamping plate 3021, so that the two core wire clamping assemblies 302 can rotate outward and separate. At this time, the push-pull cylinder 621 drives the slide rail 623 to move through the push-pull plate 622, and the stopper on the slide rail 623 abuts against the connecting The movable cylinder 631 drives the cam plate 632 to move back, and the transmission bearing 3024 slides out along the track of the Y-shaped guide groove 6322, so that the two core wire clamping assemblies 302 are brought together, so that the two rows of core wires passing through the two core wire clamping assemblies 302 are pressed against the upper and lower surfaces of the connector respectively.

[0050] Preferably, if Figure 6 As shown, the clamp flipping mechanism 8 includes a flipping motor 81 and a limiting shaft 82. The flipping motor 81 is arranged on the circulating transmission belt mechanism 51. The limiting shaft 82 is transmission-connected with the flipping motor 81. The limiting shaft 82 is provided with a clamping opening 821. The clamping opening 821 has clamping blocks respectively arranged at the upper and lower parts. The carrier 52 is connected with the limiting shaft 82 by clamping the clamping blocks with the clamping grooves.

[0051] Preferably, if Figure 5 As shown, the double-head welding mechanism 7 includes a fourth bracket 71, a displacement mechanism 72 and a welding mechanism 73. The fourth bracket 71 is arranged on the frame 1, the displacement mechanism 72 is arranged on the fourth bracket 71, and the welding mechanism 73 is arranged on the displacement mechanism 72. The displacement mechanism 72 drives the welding mechanism 73 to move horizontally, and the welding structure is provided with two welding head assemblies.

[0052] Preferably, as Figure 7 shown, the blanking mechanism 9 includes a translation mechanism 91, a rotation mechanism 92, a lifting mechanism 93 and a clamping mechanism 94. The translation mechanism 91 is arranged on the frame 1, the rotation mechanism 92 is arranged on the translation mechanism 91, the lifting mechanism 93 is arranged on the rotation mechanism 92, and the clamping mechanism 94 is arranged on the lifting mechanism 93. The translation mechanism 91 includes a translation cylinder, a slider and a slide rail 623. The translation cylinder and the slide rail 623 are arranged on the frame 1. The slider is slidably arranged on the slide rail 623 and is in transmission connection with the translation cylinder. The rotation mechanism 92 includes a fifth bracket, a rotary stepping motor and a swing rod. The fifth bracket is arranged on the slider. The rotary stepping motor is connected to the fifth bracket. The swing rod is in transmission connection with the rotary stepping motor. The lifting mechanism 93 includes a lifting cylinder and a lifting plate. The lifting cylinder is connected to the swing rod. The lifting plate is in transmission connection with the lifting cylinder. The clamping mechanism 94 includes a clamping cylinder and clamping jaws. The clamping cylinder is connected to the lifting plate. Two clamping jaws are movably connected to the push rod of the clamping cylinder. The translation cylinder drives the slider to move, adjusting the horizontal position of the clamping mechanism 94 to facilitate taking out the fixture 30 from the carrier 52. The rotary stepping motor drives the swing rod to swing, enabling the clamping mechanism 94 to rotate between two work positions. The lifting cylinder drives the lifting plate to move up and down, facilitating the clamping mechanism 94 to clamp the fixture 30. The clamping cylinder drives the push rod to move in and out. When the push rod contracts inward, the two clamping jaws swing relatively inward to form a clamping state. When the push rod extends outward, the two clamping jaws swing relatively outward to form a release state.

[0053] Preferably, it further includes an electric control device 20. The electric control device 20 is arranged on the machine shell 10, and the electric control device 20 is electrically connected to each mechanism.

[0054] The working steps of the present invention are as follows: In the first step, the core wires in the first row and the fourth row are arranged and the connectors are clamped on the fixture 30;

[0055] In the second step, the core wires in the first row and the fourth row are automatically cut and stripped;

[0056] In the third step, the conductors of the core wires in the first row and the fourth row are dipped in rosin;

[0057] In the fourth step, the conductors of the core wires in the first row and the fourth row are dipped in tin;

[0058] In the fifth step, the connector is rotated for alignment;

[0059] In the sixth step, the core wires in the first row are welded;

[0060] In the seventh step, the product and the fixture are flipped, and the core wires in the fourth row are welded;

[0061] In the eighth step, the finished product is automatically blanked;

[0062] Working principle: Manually place the cable assembly on the fixed plate 305, divide its core wires into two rows and thread them through two core wire clamping assemblies 302 respectively. Manually place the connector on the connector fixing bracket 303, and then use external force to close the two core wire clamping assemblies 302 together, and place the entire fixture 30 on the clamping mechanism 24 of the fixture transfer mechanism 2;

[0063] The transverse movement mechanism 21 can drive the fixture 30 to move left and right, so that the fixture 30 is correspondingly arranged at the cutting and peeling mechanism 3. The transfer mechanism 23 drives the fixture 30 mechanism to move back and forth, and the tongue pushing mechanism 36 drives the tongue to move back and forth, so that the tongue is arranged between the two core wire clamping assemblies 302. Then, the first core wire pressing mechanism 32 and the second core wire pressing mechanism 33 press the two rows of core wires on the surface of the tongue respectively. The first peeling and cutting mechanism 34 and the second peeling and cutting mechanism 35 perform peeling and cutting treatment on the two rows of core wires respectively. During this process, there will be no interference with the connector fixing bracket 303; after the core wire treatment is completed, the transverse movement mechanism 21 drives the fixture 30 to move to the tin dipping mechanism, and the rotation mechanism 22 drives the fixture 30 to rotate downward, so that the core wire can be tinned; after tin dipping is completed, the transverse movement mechanism 21 and the pushing mechanism push the fixture 30 to the fixture transfer mechanism 4, and the fixture transfer mechanism 4 clamps the fixture 30 and transfers the fixture 30 to the conveying and circulating mechanism 5;

[0064] The carrier 52 loads the fixture 30, and the circulating conveyor belt mechanism 51 drives the carrier 52 to move to the rotation and alignment mechanism 6. The separation mechanism 63 uses the structure of the cam plate 632 to open the two core wire clamping assemblies 302 when the transmission bearing 3024 of the fixture 30 slides in the Y-shaped guide groove 6322. Then, the pushing and pulling mechanism 62 drives the connector fixing bracket 303 to rotate to the alignment position between the two core wire clamping assemblies 302. The connector placed on the connector fixing bracket 303 is arranged between the two core wire clamping assemblies 302. When the transmission bearing 3024 exits the Y-shaped guide groove 6322, the two core wire clamping assemblies 302 are closed together, so that the two rows of core wires are pressed on the upper and lower end faces of the connector; after the alignment and assembly of the core wire and the connector are completed, the circulating conveyor belt mechanism 51 drives the carrier 52 to move between the double-head welding mechanism 7 and the fixture flipping mechanism 8. One of the welding head assemblies of the double-head welding mechanism 7 first welds a row of core wires to the connector, and then the carrier 52 moves to the fixture flipping mechanism 8 and is clamped with the fixture flipping mechanism 8. The fixture flipping mechanism 8 drives the fixture 30 to flip through the rotating rod of the carrier 52. After completion, the carrier 52 moves to the other welding head assembly of the double-head welding mechanism 7, and the other welding head assembly welds the other row of core wires to the connector, thus completing the preparation of the product. The carrier 52 moves to the blanking mechanism 9, and the blanking mechanism 9 clamps the fixture 30 and transfers it to the aggregate station, and finally takes out the product from the fixture 30.

[0065] The fixture 30 can complete processes such as stripping and tinning a large number of core wires at one time by clamping the core wires of the cable and the connector in one clamping operation within a narrow space. Before the upper and lower rows of welding, pre-alignment is carried out simultaneously, and during the operation process, through docking with the equipment, the fixture can be opened online (the production line can continue production without stopping). The connectors of the two rows that have been welded are fixed on the connector fixing frame. Multiple core wires are manually clamped in the core wire spring clips. The core wires clamped in the fixture are processed through processes such as core wire cutting, wire stripping, and tin dipping by an automated device. Then, through the cooperation of the rotation alignment mechanism, the core wire clamping assembly is half-opened and the connector fixing frame is rotated into the core wire clamping assembly. After the fixture is closed, the upper and lower rows of core wires (the outer two side core wires) are aligned with the welding positions of the connector to complete the welding operation. It has high precision and high consistency, solves the problem that traditional processes require re-wiring and clamping for each process, eliminates the need for multiple wiring and clamping, shortens the working hours, and improves the processing efficiency.

[0066] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A multi-core wire double-row automatic welding machine, characterized in that: The machine comprises a frame, on which a fixture transfer mechanism, a tinning mechanism, a conveying circulation mechanism and a blanking mechanism are arranged in sequence from left to right; a fixture for installing core wires and connectors is arranged on the fixture transfer mechanism, a cutting and stripping mechanism for processing double-row core wires is arranged opposite to the fixture transfer mechanism, a fixture transfer mechanism is arranged between the fixture transfer mechanism and the conveying circulation mechanism, a rotation alignment mechanism for aligning and assembling core wires and connectors and a double-head welding mechanism for welding double-row core wires and connectors are arranged on one side of the conveying circulation mechanism, and a fixture flipping mechanism is arranged on the other side, the rotation alignment mechanism is arranged on the left side of the double-head welding mechanism, and the fixture flipping mechanism corresponds to the position of the double-head welding mechanism; the fixture transfer mechanism comprises a transverse movement mechanism, a rotation mechanism, a transfer mechanism and a clamping mechanism, The transverse movement mechanism is arranged on the frame, the rotating mechanism and the transfer mechanism move on the transverse movement mechanism through a connecting seat, and the clamping mechanism is respectively connected to the rotating mechanism and the transfer mechanism in a transmission manner; the rotating alignment mechanism includes a third bracket, a push-pull mechanism and a separation mechanism, the third bracket is arranged on the frame, the push-pull mechanism includes a push-pull cylinder, a push-pull plate and a slide rail, the push-pull cylinder is arranged on the third bracket, the push-pull plate is connected to the push-pull cylinder, the slide rail is slidably arranged on the third bracket and connected to the push-pull plate, the rear end of the slide rail is vertically connected with a stopper, the stopper is arranged behind the connector fixing frame of the clamp, the separation mechanism includes a movable cylinder and a cam plate for driving the two core wire clamping assemblies to open or close, the movable cylinder is fixedly arranged on the third bracket, and the cam plate is connected to the movable cylinder in a transmission manner.

2. The multi-core wire double-row automatic welding machine according to claim 1, characterized in that: The fixture includes a positioning plate, a core wire clamping assembly for installing double-row core wires and a connector fixing frame for installing a connector. The positioning plate is provided with a positioning seat, and the core wire clamping assembly is movably connected to the positioning seat. The positioning plate is also vertically connected to a fixing plate, and the connector fixing frame is movably connected to the fixing plate.

3. The multi-core wire double-row automatic welding machine according to claim 1, characterized in that: The cutting and stripping mechanism includes a first bracket, a first core wire pressing mechanism, a second core wire pressing mechanism, a first stripping and cutting mechanism, a second stripping and cutting mechanism and a tongue pushing mechanism. The first bracket is arranged on the frame, and the tongue pushing mechanism is arranged on the first bracket. The first core wire pressing mechanism and the first stripping and cutting mechanism are respectively arranged above the tongue pushing mechanism, and the second core wire pressing mechanism and the second stripping and cutting mechanism are respectively arranged below the tongue pushing mechanism. The first core wire pressing mechanism corresponds to the second core wire pressing mechanism, and the first stripping and cutting mechanism corresponds to the second stripping and cutting mechanism.

4. The multi-core wire double-row automatic welding machine according to claim 1, wherein: The tin immersion mechanism comprises a tin furnace, a tin slag scraping mechanism and a rosin mechanism. The tin furnace is arranged on a frame, and the tin slag scraping mechanism and the rosin mechanism are respectively arranged on one side of the tin furnace.

5. The multi-core wire double-row automatic welding machine according to claim 1, characterized in that: The conveying and circulating mechanism includes a circulating belt mechanism, carriers, and a servo motor. The circulating belt mechanism is arranged on the frame, the servo motor is drivingly connected to the circulating belt mechanism, and a plurality of carriers are arranged on the circulating belt mechanism. Each carrier includes a base, a rotating rod, and a clamping block. Four pulleys are provided at the bottom of the base. The base is drivingly connected to the circulating belt mechanism and slides on the circulating belt mechanism through the pulleys. The rotating rod is rotatably inserted through the base. One end of the rotating rod is connected to the clamping block, and the other end is provided with a clamping groove that is clamped with the fixture flipping mechanism. A slot for clamping the fixture is formed at the front end of the clamping block.

6. The multi-core wire double-row automatic soldering machine according to claim 1, wherein: The double-head welding mechanism includes a fourth bracket, a displacement mechanism, and a welding mechanism. The fourth bracket is arranged on the frame, the displacement mechanism is arranged on the fourth bracket, and two welding mechanisms are arranged on the displacement mechanism.

7. The multi-core wire double-row automatic welding machine according to claim 1, wherein: The fixture flipping mechanism includes a flipping motor and a limiting shaft. The flipping motor is arranged on the circulating belt mechanism, the limiting shaft is drivingly connected to the flipping motor, and the limiting shaft is provided with a clamping opening for clamping the carrier.

8. The multi-core wire double-row automatic welding machine according to claim 1, characterized in that: The blanking mechanism includes a translation mechanism, a rotating mechanism, a lifting mechanism, and a clamping mechanism. The translation mechanism is arranged on the frame, the rotating mechanism is arranged on the translation mechanism, the lifting mechanism is arranged on the rotating mechanism, and the clamping mechanism is arranged on the lifting mechanism.

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