A wire stranding machine for automobile wire harness production and a process thereof

Abstract

The application discloses a wire twisting machine for automobile wire harness production and a process thereof, relates to the technical field of wire harness production, and is characterized in that a wire feeding wheel is arranged on the top of a support frame, a mounting hole is formed in the wire feeding wheel, a driving motor is arranged at one end of the wire feeding wheel on the top of the support frame, the output end of the driving motor is connected with one end of a rotating shaft of the wire feeding wheel through a connecting flange, a gear ring is connected with the other end of the rotating shaft of the wire feeding wheel, and an eccentric wheel is rotatably arranged in the mounting hole. The driving motor drives the eccentric wheel to rotate rapidly, the wire feeding wheel, the contact wire and the pressing wheel vibrate synchronously under the vibration conduction, the residual stress in the wire is eliminated by using vibration energy, the stability of the twisting is not affected by the residual stress, the wire twisting quality of the wire harness is improved, meanwhile, the vibration of the wire shakes off most dust adsorbed on the surface of the wire, the surface of the wire is smoother during subsequent wire harness twisting, and the quality of the wire harness is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness production, in particular to a wire stranding machine and a process thereof for producing automobile wire harnesses. Background Art

[0002] A wiring harness is a component used to connect and transmit power. It is usually made by twisting multiple wires or wires together in a circular pattern and direction using a twisting machine. In automotive wiring harnesses, many systems use double or triple twisted wires to achieve better signal transmission. When twisting shorter automotive wiring harnesses, a twisting machine is often used. The operator needs to manually clamp the multiple strands of wire to be twisted between the two ends of the twisting machine.

[0003] In the Chinese patent application number CN202410626396.4, entitled "A Wire Harness Processing Twisting Machine", the patent uses the cooperation of a rotating roller and a pushing block to align the wires in the mounting grooves on both sides due to the push of the pushing block, so that the aligned wires can maintain consistent tension during the twisting process, thereby effectively improving the quality of the wire stranding of the wire harness. When producing automotive wiring harnesses, the stranding machine of this patent requires manual feeding of the cut single wires into the mounting grooves one by one, which has high labor intensity. In the process of using a straightener and a guide wheel to feed the existing automatic feeding stranding machine, there will be residual stress in the wires after they are straightened by the straightener. The wires containing residual stress will affect the twisting stability of the wire harness when they are twisted in the wire harness, resulting in uneven lay length of the twisted wire harness and reduced twisting quality of the twisted wire harness. Summary of the Invention

[0004] The present invention provides a stranding machine and process for producing automotive wiring harnesses, which can effectively solve the problem that the stranding machine of the patent in the above-mentioned background technology needs to manually feed the cut single wires into the installation groove one by one when producing automotive wiring harnesses, which has high labor intensity. In the process of the existing automatic feeding stranding machine using a straightener and a guide wheel to feed the wires, residual stress will be generated in the wires after being straightened by the straightener. The wires containing residual stress will affect the twisting stability of the wire harness when they are twisted in the wire harness, resulting in uneven lay length of the twisted wire harness and reduced stranding quality of the twisted wire harness.

[0005] To achieve the above object, the present invention provides the following technical solution: a stranding machine for automobile wiring harness production, comprising a support frame, a quality improvement component is provided on the top of the support frame, and the quality improvement component includes a wire feeding wheel;

[0006] A wire feeding wheel is installed on the top of the support frame, a mounting hole is opened inside the wire feeding wheel, a driving motor is installed on the top of the support frame, and the output end of the driving motor is connected to one end of the rotating shaft of the wire feeding wheel through a connecting flange;

[0007] The other end of the rotating shaft of the wire feeding wheel is connected with a gear ring, and an eccentric wheel is rotatably arranged in the installation channel;

[0008] A gear frame is arranged on the top of the support frame, and a connecting gear and a driven gear are sequentially rotatably arranged on the top and bottom of the gear frame, the gear ring is engaged with the connecting gear, and the connecting gear is engaged with the driven gear;

[0009] One end of the rotating shaft of the eccentric wheel is connected with one end of the rotating shaft of the driven gear.

[0010] According to the above technical scheme, a plurality of first flow holes are uniformly arranged on one side of the connecting flange, a plurality of second flow holes are uniformly arranged on one side of the gear frame, and a flow fan is connected to the other end of the rotating shaft of the eccentric wheel.

[0011] According to the above technical scheme, a fixing frame is arranged on the side of the driving motor on the top of the support frame, a U-shaped frame is arranged on the top of the fixing frame, a adjusting plate is slidably connected in the U-shaped frame, a pressing wheel is connected to the bottom of the adjusting plate through a pressing spring, and the pressing wheel is embedded in the top of the wire feeding wheel.

[0012] A limiting sliding rod is connected to the top of the pressing wheel, the limiting sliding rod is slidably connected with the adjusting plate, and an adjusting screw is connected to one side of the top of the U-shaped frame through a screw hole, and the bottom of the adjusting screw is rotatably connected with the top of the adjusting plate.

[0013] According to the above technical scheme, a guide wheel and a straightening machine are sequentially arranged on one end of the support frame, an operation table is arranged on the other end of the support frame, a wire distribution plate is arranged on one side of the top of the operation table, and three rubber rings are arranged at equal intervals in the wire distribution plate.

[0014] According to the above technical scheme, three conveying bottom wheels are arranged on the top of the operation table, the rotating shafts of the three conveying bottom wheels are connected through a linkage rod, a conveying motor is arranged on one end of one of the conveying bottom wheels on the top of the operation table, the conveying motor is connected with one end of the rotating shaft of the adjacent conveying bottom wheel, a conveying electric push rod is arranged on the top of the conveying bottom wheel on the top of the operation table, three conveying top wheels are connected to the output end of the conveying electric push rod, and a wire supporting pipe is arranged on one side of each of the conveying bottom wheels on the top of the operation table.

[0015] According to the above technical scheme, one end of the wire supporting pipe is connected to one end of a cleaning cylinder, an assembly ring is arranged on the other end of the cleaning cylinder, three cameras are arranged at equal intervals on the inner side of the assembly ring, a cutting frame is arranged on the operation table close to the position of the assembly ring, three cutting electric push rods are arranged on the inner top and bottom of the cutting frame, and a cutting knife is connected to the output end of the cutting electric push rod.

[0016] According to the technical scheme, the cutting frame is provided with a wire harness twisting assembly on one side, and the wire harness twisting assembly comprises a fixed frame;

[0017] The fixed frame is provided with a twisting electric sliding rail on the top of one side, and the output end of the twisting electric sliding rail is connected with a movable frame.

[0018] The movable frame is provided with a twisting electric push rod on one side, and the output end of the twisting electric push rod is connected with a twisting electric motor.

[0019] According to the technical scheme, the cleaning cylinder is provided with a gas sending pipe on the top, and the top of the operation table is provided with a gas conveying pump near one end of the gas sending pipe.

[0020] The bottom of the twisting electric sliding rail is provided with a collecting box, and the bottom of the collecting box is provided with a residual material box near one side of the cutting knife.

[0021] According to the technical scheme, the input end of the driving motor, the conveying electric push rod, the conveying motor, the camera, the cutting electric push rod, the twisting electric sliding rail, the adjusting electric sliding rail, the adjusting electric push rod, the tension sensor, the clamping sliding rail, the clamping motor, the servo motor, the twisting electric push rod, the twisting electric motor, the electric clamping jaw, the electric control valve, the gas conveying pump and the dust collector is electrically connected with the output end of the external controller.

[0022] The application also provides a production process for automobile wire harness, which is constructed according to the technical scheme and comprises the following steps.

[0023] S1, stranding preparation process, the three wires' movable ends pass through the straightener and guide wheel in sequence and enter between the pressure wheel and the wire feeding wheel. The movable ends of the wires then pass through the rubber ring, and then pass through the middle of the conveying bottom wheel and the conveying top wheel, and then pass through the supporting wire tube, cleaning cylinder and assembly ring;

[0024] S2, vibration conveying process, the drive motor is started, the drive motor drives the connecting flange, wire feeding wheel, gear ring and eccentric wheel to rotate, the wire passes through the rubber ring to evenly divide the wire, the conveying motor is started, and the movable end of the wire moves to the middle of the two adjacent clamping rollers;

[0025] S3, dust removal process, the air pump and the vacuum cleaner are started, the corresponding electric control valve is opened, high-pressure air is sprayed into the cleaning cylinder through the air jet hole, and the vacuum cleaner is started;

[0026] S4, fixed cutting process, the clamping motor inside the fixed frame is started, the clamping roller clamps and fixes the movable end of the wire, then the twisting electric slide is started, the movable frame approaches the fixed frame, the drive motor, the conveying motor and the servo motor inside the fixed frame are started, the clamping motor inside the movable frame is started, the clamping roller clamps the movable end of the wire, the drive motor, the conveying motor, the twisting electric slide and the servo motor inside the fixed frame are started, and the cutting electric push rod cuts the wire;

[0027] S5, the wire harness twisting process, the adjustment electric slide rail and the adjustment electric push rod are started, then the electric clamp clamps the movable ends of the three wires, the clamping rollers inside the movable frame are separated from the wires, the adjustment electric slide rail inside the movable frame drives the clamping rollers away from the electric clamp, then the twisting electric push rod and the twisting motor are operated.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. A quality improvement component is provided, which drives the connecting flange, wire feeding wheel and gear ring to rotate through the driving motor. Under the elastic force of the pressure spring, the pressure wheel and the wire feeding wheel tightly clamp the passing wire to ensure the stable transportation of the wire. Under the driving action of the gear ring, the connecting gear and the connecting gear, the eccentric wheel rotates rapidly. During the rotation, a centrifugal force is generated to form vibration. The wire feeding wheel is in close contact with the fitted wire. Under the action of vibration conduction, the wire feeding wheel, the contact wire and the pressure wheel vibrate synchronously, and the vibration energy is used to eliminate the residual stress inside the wire. When the subsequent wire harness is twisted, the residual stress is avoided from affecting the stability of the twisting, and the wire is prevented from breaking during the twisting process, thereby improving the stranding quality of the wire harness. At the same time, the vibration of the wire will shake off most of the dust adsorbed on the surface of the wire. When the subsequent wire harness is twisted, the surface of the wire is smoother, avoiding scratches on the surface of the wire, further improving the quality of the wire harness.

[0030] The other end of the eccentric wheel's rotating shaft is connected to a convection fan. When the driven gear drives the eccentric wheel to rotate, the convection fan is also driven to rotate, which speeds up the flow of air through the first and second convection holes. The increase in the air flow speed nearby speeds up the heat dissipation of the wire feeding wheel, connecting gear, driven gear and eccentric wheel, reduces mechanical wear and extends service life.

[0031] When one end of the wire passes through the assembly ring, the camera transmits the captured data to the controller. When the insulation layer on the surface of the wire is damaged or has holes, the drive motor and the conveying motor work together to move the wire, and the cutting knife automatically cuts off the small section of wire to prevent the defective wire from participating in the twisting of the wire harness, thereby improving the quality of the twisted wire. The scrap box collects the cut scraps for subsequent processing. There is no need to stop the machine for manual processing, which increases production efficiency.

[0032] 2. A wire harness twisting assembly is provided. The adjusting electric push rods, adjusting electric slide rails, clamping motors and servo motors inside the fixed frame and the movable frame cooperate with each other to fix the wires to be twisted, and then the movable frame is driven to move by the twisting electric slide rail. The twisting machine can be flexibly adjusted according to the length of the production harness. After the length of the wire is determined, the cutting knife cuts the wire. After cutting, the three cut wires are driven close to each other by adjusting the electric slide rail and the adjusting electric push rod, so that the wires are evenly distributed in the space. The twisting electric push rod and the twisting motor are operated, and the twisting motor drives the assembly disk and the electric clamping claw to rotate. The twisting electric push rod drives the electric clamping claw to move at a uniform speed toward the fixed frame to realize the twisting of the wire harness. When the wire harness is twisted, the tension sensor can feed back the tension data of each wire harness to the controller. Through the feedback tension data, the electric push rod is adjusted to control the distance between the three twisted wires in real time to avoid excessive or insufficient tension between the three wires, so that the lay pitch of the twisted wire harness is more uniform and stable, and the quality of the produced automotive wiring harness is better.

[0033] When the wires pass through the cleaning cylinder, the air pump delivers air to the air pipe, opens the corresponding electric control valve, and high-pressure air enters the arc-shaped air box and is sprayed into the cleaning cylinder through the air jet hole. The high-pressure air blows on the surface of the wires passing through, blowing off the remaining dust on the surface of the wires. Under the suction effect of the vacuum cleaner, the dust passes through the dust collection box and enters the interior of the vacuum cleaner, ensuring the smoothness of the wire surface. When the wire harness is twisted later, the wire surface is smoother, further improving the quality of the wire harness.

[0034] In summary, the two components of the quality improving assembly and the wire harness twisting assembly cooperate with each other to automatically feed and twist the wires, realize the automatic and continuous production of the wire harness, and do not need manual operation, so that the production efficiency is high, and the quality improving assembly is used for shaking off most dust adsorbed on the surface of the wires by vibration, the wire harness twisting assembly is used for removing the remaining dust by wind power, the two components cooperate with each other, and the smoothness of the surface of the wires is fully ensured, and the forming quality of the wire harness is fully ensured when twisting. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application, and are used to explain the application together with the embodiments of the application, and do not constitute a limitation on the application.

[0036] In the drawings:

[0037] Figure 1 is a schematic view of the three-dimensional structure of the application;

[0038] Figure 2 is a schematic view of the structure of the quality improving assembly of the application;

[0039] Figure 3 is a schematic view of the mounting structure of the wire feeding wheel of the application;

[0040] Figure 4 is a schematic view of the mounting structure of the connecting gear of the application;

[0041] Figure 5 is a schematic view of the mounting structure of the eccentric wheel of the application;

[0042] Figure 6 is a schematic view of the mounting structure of the wire distribution plate of the application;

[0043] Figure 7 is a schematic view of the mounting structure of the cutting knife of the application;

[0044] Figure 8 is a schematic view of the mounting structure of the cleaning cylinder of the application;

[0045] Figure 9 is a schematic view of the structure of the wire harness twisting assembly of the application;

[0046] Figure 10 is a schematic view of the mounting structure of the adjusting electric slide rail of the application;

[0047] Figure 11 is an enlarged view of the A area of the application from Figure 10 ;

[0048] Figure 12 is a schematic view of the mounting structure of the twisting motor of the application;

[0049] Figure 13 is the installation structure diagram of the electric clamping jaw of the present application;

[0050] Figure 14 is the production process step diagram of the present application;

[0051] Figure label: 1, support frame;

[0052] 2, mass lifting assembly; 201, wire feeding wheel; 202, mounting hole; 203, driving motor; 204, connecting flange; 205, gear ring; 206, gear frame; 207, connecting gear; 208, driven gear; 209, eccentric wheel; 210, convection hole 1; 211, convection hole 2; 212, convection fan; 213, fixed frame; 214, U-shaped frame; 215, adjusting plate; 216, pressing wheel; 217, pressing spring; 218, adjusting screw; 219, guide wheel; 220, straightening machine; 221, operation table; 222, wire distribution plate; 223, rubber ring; 224, conveying electric push rod; 225, conveying top wheel; 226, conveying bottom wheel; 227, linkage rod; 228, conveying motor; 229, support wire tube; 230, cleaning cylinder; 231, assembly ring; 232, camera; 233, cutting frame; 234, cutting electric push rod; 235, cutting knife; 236, limiting sliding rod;

[0053] 3, wire harness twisting assembly; 301, fixed frame; 302, twisting electric sliding rail; 303, movable frame; 304, adjusting electric sliding rail; 305, adjusting electric push rod; 306, tension sensor; 307, clamping sliding rail; 308, clamping motor; 309, bidirectional screw; 310, clamping sliding block; 311, servo motor; 312, clamping roller; 313, twisting electric push rod; 314, twisting motor; 315, assembly disc; 316, assembly hole; 317, electric clamping jaw; 318, collection box; 319, residual material box; 320, air feeding pipe; 321, electric control valve; 322, arc-shaped air box; 323, air injection hole; 324, air feeding pump; 325, dust collection box; 326, dust collector. DETAILED DESCRIPTION

[0054] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and are not used to limit the present application.

[0055] Embodiment: as Figures 1-13As shown, the present application provides a technical scheme for automobile wire harness production stranding machine, including support frame 1, support frame 1 top is provided with mass lifting assembly 2, mass lifting assembly 2 includes wire feeding wheel 201, mounting hole 202, drive motor 203, connecting flange 204, gear ring 205, gear frame 206, connecting gear 207, driven gear 208, eccentric wheel 209, convection hole 210, convection hole 211, convection fan 212, fixed frame 213, type frame 214, adjusting plate 215, pressing wheel 216, pressing spring 217, adjusting screw 218, guide wheel 219, straightening machine 220, operation table 221, line distribution plate 222, rubber ring 223, conveying electric push rod 224, conveying top wheel 225, conveying bottom wheel 226, linkage rod 227, conveying motor 228, support wire tube 229, cleaning cylinder 230, assembly ring 231, camera 232, cutting frame 233, cutting electric push rod 234, cutting knife 235 and limiting sliding rod 236;

[0056] Support frame 1 top is provided with wire feeding wheel 201, wire feeding wheel 201 is internally provided with mounting hole 202, support frame 1 top is provided with drive motor 203 at one end of wire feeding wheel 201, drive motor 203 output end is connected with wire feeding wheel 201 rotating shaft one end through connecting flange 204, wire feeding wheel 201 rotating shaft other end is connected with gear ring 205, mounting hole 202 is internally rotatably installed with eccentric wheel 209;

[0057] Support frame 1 top is provided with gear frame 206 at the other end of wire feeding wheel 201, gear frame 206 top is rotatably installed with connecting gear 207, gear frame 206 bottom is rotatably installed with driven gear 208, gear ring 205 is engaged with connecting gear 207, connecting gear 207 is engaged with driven gear 208, eccentric wheel 209 rotating shaft one end is connected with driven gear 208 rotating shaft one end, connecting flange 204 one side is uniformly provided with a plurality of convection holes 210, gear frame 206 one side is uniformly provided with a plurality of convection holes 211, eccentric wheel 209 rotating shaft other end is connected with convection fan 212, driven gear 208 drives eccentric wheel 209 to rotate when also drives convection fan 212 to rotate, convection fan 212 rotates, air flow velocity through convection hole 210 and convection hole 211 is accelerated, the increase of air flow velocity in the vicinity, the heat dissipation speed of wire feeding wheel 201, connecting gear 207, driven gear 208 and eccentric wheel 209 is accelerated, the mechanical wear is reduced, and the service life is prolonged;

[0058] The top of the support frame 1 is provided with a fixed frame 213 on the side of the driving motor 203, the top of the fixed frame 213 is provided with a U-shaped frame 214, the inside of the U-shaped frame 214 is slidably connected with an adjusting plate 215, the bottom of the adjusting plate 215 is connected with a pressing wheel 216 through a pressing spring 217, the bottom of the pressing wheel 216 is embedded in the top of the wire feeding wheel 201, and the pressing wheel 216 can exert pressure on the passing wire, so that the friction between the wire and the wire feeding wheel 201 is sufficient to drive the wire to move when the wire feeding wheel 201 rotates;

[0059] The top of the pressing wheel 216 is connected with a limiting sliding rod 236, the limiting sliding rod 236 is slidably connected between the adjusting plate 215, one side of the top of the U-shaped frame 214 is connected with an adjusting screw 218 through a screw hole, the bottom of the adjusting screw 218 is rotatably connected with the top of the adjusting plate 215, rotating the adjusting screw 218 can drive the adjusting plate 215 to move up and down in the U-shaped frame 214, change the extension length of the pressing spring 217, and then change the pressure exerted by the pressing wheel 216 on the bottom wire, when the diameter of the wire changes, the pressure exerted by the pressing wheel 216 on the bottom wire can be flexibly changed, so that the wire can be stably conveyed, and deformation of the wire caused by excessive pressure is avoided;

[0060] The support frame 1 is sequentially provided with a guide wheel 219 and a straightening machine 220 at one end, the wire conveyed by the wire feeding machine sequentially passes through the straightening machine 220 and the guide wheel 219 and enters the middle of the pressing wheel 216 and the wire feeding wheel 201, the straightening machine 220 plays a straightening role to straighten the curved electric wire, and the guide wheel 219 plays a guiding role to guide the wire into the middle of the pressing wheel 216 and the wire feeding wheel 201;

[0061] The support frame 1 is provided with an operation table 221 at the other end, one side of the top of the operation table 221 is provided with a wire distribution plate 222, three rubber rings 223 are equidistantly arranged in the middle of the wire distribution plate 222, the wire passes through the inside of the rubber ring 223 to evenly distribute the wire, three conveying bottom wheels 226 are arranged on the top of the operation table 221, the rotating shafts of the three conveying bottom wheels 226 are connected through a linkage rod 227, a conveying motor 228 is arranged at one end of one of the conveying bottom wheels 226 on the top of the operation table 221, the conveying motor 228 is connected with one end of the rotating shaft of the adjacent conveying bottom wheel 226, a conveying electric push rod 224 is arranged on the top of the conveying bottom wheel 226 on the top of the operation table 221, the output end of the conveying electric push rod 224 is connected with three conveying top wheels 225, the conveying electric push rod 224 can exert pressure on the passing wire, so that the conveying motor 228 can drive the wire between the conveying bottom wheel 226 and the conveying top wheel 225 to move accurately and stably, a support wire pipe 229 is arranged on one side of each of the conveying bottom wheels 226 on the top of the operation table 221, the support wire pipe 229 supports and limits the wire, can guide the wire to move along the support wire pipe 229, and can avoid the wire from being bent due to gravity;

[0062] The support wire tube 229 is connected to one end of the cleaning cylinder 230, and the other end of the cleaning cylinder 230 is provided with an assembly ring 231, and three cameras 232 are equidistantly arranged on the inner side of the assembly ring 231. When the wire passes through the inside of the assembly ring 231, the cameras 232 can shoot the surface of the wire, and the shooting data is transmitted to the controller. When the insulating layer of the wire surface has damage or holes, the cutting knife 235 can automatically cut off the small section of the wire, so as to avoid the defective wire from participating in the stranding of the wire harness, thereby improving the stranding quality. The cutting frame 233 is installed at one end of the operation table 221 close to the position of the assembly ring 231, and three cutting electric push rods 234 are arranged on the inner top and bottom of the cutting frame 233. The cutting electric push rods 234 are connected with the cutting knife 235 at the output end, and the cutting knife 235 can cut off the passing wire;

[0063] The wire harness stranding assembly 3 is arranged on one side of the cutting frame 233, and the wire harness stranding assembly 3 comprises a fixed frame 301, a stranding electric sliding rail 302, a movable frame 303, an adjusting electric sliding rail 304, an adjusting electric push rod 305, a tension sensor 306, a clamping sliding rail 307, a clamping motor 308, a bidirectional screw 309, a clamping sliding block 310, a servo motor 311, a clamping roller 312, a stranding electric push rod 313, a stranding motor 314, an assembly disc 315, an assembly hole 316, an electric clamping jaw 317, a collection box 318, a residual material box 319, a gas supply pipe 320, an electric control valve 321, an arc-shaped gas box 322, a gas injection hole 323, a gas conveying pump 324, a dust collecting box 325 and a dust collector 326.

[0064] The fixed frame 301 is installed on one side of the cutting frame 233, and the stranding electric sliding rail 302 is installed on the top of one side of the fixed frame 301. The movable frame 303 is connected to the output end of the stranding electric sliding rail 302. Two adjusting electric sliding rails 304 are arranged on the inner bottom of the fixed frame 301 and the movable frame 303. One adjusting electric sliding rail 304 is arranged on the inner top of the fixed frame 301 and the movable frame 303. The output end of the adjusting electric sliding rail 304 is connected with the adjusting electric push rod 305. The output end of the adjusting electric push rod 305 is connected with the clamping sliding rail 307 through the tension sensor 306. The clamping motor 308 is installed at one end of the clamping sliding rail 307. The bidirectional screw 309 is rotatably installed in the clamping sliding rail 307. The clamping sliding block 310 is slidably installed at both ends of the clamping sliding rail 307. The bidirectional screw 309 is connected with the adjacent clamping sliding block 310 through the screw hole. The servo motor 311 is installed at the top end of the clamping sliding block 310. The output end of the servo motor 311 is connected with the clamping roller 312.

[0065] The movable frame 303 is provided with a twisted electric push rod 313 on one side, the output end of the twisted electric push rod 313 is connected with a twisted electric machine 314, the output end of the twisted electric machine 314 is connected with an assembly disc 315, a plurality of assembly holes 316 are formed in the surface of the assembly disc 315, three electric clamping jaws 317 are fixed on the assembly disc 315 at equal angles through the assembly holes 316, a collecting box 318 is installed at the bottom of the twisted electric slide rail 302, the collecting box 318 can collect the wire harness after twisting, and a residual material box 319 is installed at one end of the collecting box 318 close to the bottom of the side of the cutting knife 235, the residual material box 319 can collect the residual material cut off, facilitating subsequent processing;

[0066] The cleaning cylinder 230 is provided with a gas supply pipe 320 at the top, the operation table 221 is provided with a gas conveying pump 324 at the top close to one end of the gas supply pipe 320, the gas conveying pump 324 is connected with one end of the gas supply pipe 320, the gas supply pipe 320 is connected with three arc-shaped gas boxes 322 through three electric control valves 321 at the bottom, three gas injection holes 323 are uniformly formed in the surface of the cleaning cylinder 230, the arc-shaped gas boxes 322 are connected with the three gas injection holes 323 on the surface of the adjacent cleaning cylinder 230, and a dust collecting box 325 is installed at the bottom of the cleaning cylinder 230 on the top of the operation table 221. A dust collector 326 is installed on one side of the operation table 221, and the suction end of the dust collector 326 is connected with one end of the dust collecting box 325;

[0067] The driving motor 203, the conveying electric push rod 224, the conveying electric machine 228, the camera 232, the cutting electric push rod 234, the twisted electric slide rail 302, the adjusting electric slide rail 304, the adjusting electric push rod 305, the tension sensor 306, the clamping slide rail 307, the clamping electric machine 308, the servo electric machine 311, the twisted electric push rod 313, the twisted electric machine 314, the electric clamping jaw 317, the electric control valve 321, the gas conveying pump 324 and the dust collector 326 are electrically connected with the output end of the external controller, and the input end of the external controller is electrically connected with the output end of the external power supply. The external controller can automatically control each electrical element, facilitating automatic production.

[0068] As shown in Figure 14 A process for producing an automobile wire harness includes the following steps:

[0069] S1, a wire preparation process, three movable ends of the electric wires pass through the straightening machine 220 and the guide wheel 219 in sequence, enter the middle of the pressure wheel 216 and the wire feeding wheel 201, pass through the rubber ring 223 again, pass through the middle of the conveying bottom wheel 226 and the conveying top wheel 225 again, and pass through the support wire tube 229, the cleaning cylinder 230 and the assembly ring 231 again;

[0070] S2, the vibration conveying process, the driving motor 203 is started, the driving motor 203 drives the connecting flange 204, the wire feeding wheel 201, the gear ring 205 and the eccentric wheel 209 to rotate, the wire passes through the rubber ring 223 inside the wire and is evenly divided, the conveying motor 228 is started, and the movable end of the wire moves to the middle of the adjacent two clamping rollers 312;

[0071] S3, the dust removal process, the gas pump 324 and the dust collector 326 are started, the corresponding electric control valve 321 is opened, the high-pressure air is sprayed to the inside of the cleaning cylinder 230 through the air jet hole 323, and the dust collector 326 is started;

[0072] S4, the fixed cutting process, the clamping motor 308 in the fixed frame 301 is started, the clamping roller 312 clamps and fixes the movable end of the wire, then the twisted electric slide rail 302 is started, the movable frame 303 approaches the fixed frame 301, the driving motor 203, the conveying motor 228 and the servo motor 311 in the fixed frame 301 are started, the clamping motor 308 in the movable frame 303 is started, the clamping roller 312 clamps the movable end of the wire, the driving motor 203, the conveying motor 228, the twisted electric slide rail 302 and the servo motor 311 in the fixed frame 301 are started, and the cutting electric push rod 234 cuts off the wire;

[0073] S5, the wire harness twisting process, the adjusting electric slide rail 304 and the adjusting electric push rod 305 are started, then the electric clamping jaw 317 clamps the movable end of the three wires, the clamping roller 312 in the movable frame 303 is separated from the wire, the adjusting electric slide rail 304 in the movable frame 303 drives the clamping roller 312 to move away from the electric clamping jaw 317, and then the twisted electric push rod 313 and the twisted electric motor 314 are operated.

[0074] The working principle and use process of the application: when producing three-strand wire, the movable end of the three wires conveyed by the wire feeder passes through the straightener 220 and the guide wheel 219 into the middle of the pressure wheel 216 and the wire feeding wheel 201 in sequence, the straightener 220 straightens the curved electrical property, the guide wheel 219 guides the wire into the middle of the pressure wheel 216 and the wire feeding wheel 201, the movable end of the three wires passes through the rubber ring 223 on the wire distribution plate 222 again, passes through the conveying bottom wheel 226 and the conveying top wheel 225 again, and passes through the supporting pipe 229, the cleaning cylinder 230 and the assembly ring 231 again;

[0075] When the wire passes through the pressing wheel 216 and the wire feeding wheel 201, the driving motor 203 is started, and the driving motor 203 drives the connecting flange 204, the wire feeding wheel 201 and the gear ring 205 to rotate. Under the elastic force of the pressing spring 217, the pressing wheel 216 and the wire feeding wheel 201 tightly clamp the passing wire, so as to ensure that the friction between the wire and the wire feeding wheel 201 can drive the wire to move. At the same time, the wire moves, the gear ring 205 drives the connecting gear 207 to rotate, the connecting gear 207 drives the driven gear 208 to rotate, and then drives the eccentric wheel 209 to rotate quickly. Due to the eccentric design of the eccentric wheel 209, a centrifugal force is generated during rotation, forming vibration, and then driving the wire feeding wheel 201 to vibrate. The wire feeding wheel 201 and the closely contacted wire vibrate synchronously under the vibration conduction effect. The wire feeding wheel 201, the contacted wire and the pressing wheel 216 vibrate synchronously, and the residual stress in the wire is eliminated by using vibration energy. In the subsequent wire harness twisting, the residual stress does not affect the stability of the twisting, and the wire is prevented from being broken during the twisting process, thereby improving the wire harness twisting quality. At the same time, the vibration of the wire can shake off most of the dust adsorbed on the surface of the wire. In the subsequent wire harness twisting, the surface of the wire is smoother, the scratches on the surface of the wire are avoided, and the quality of the wire harness is further improved.

[0076] When the diameter of the wire changes, the adjusting plate 215 moves up and down in the U-shaped frame 214 by rotating the adjusting screw 218. The limiting slide rod 236 limits the pressing wheel 216, and the extension length of the pressing spring 217 changes, thereby changing the pressure applied by the pressing wheel 216 to the bottom wire. The pressure applied by the pressing wheel 216 to the bottom wire can be flexibly changed, so as to ensure that the wire can be stably conveyed and also avoid that the wire is deformed due to too much pressure. The application range is wide.

[0077] The other end of the rotating shaft of the eccentric wheel 209 is connected with the convection fan 212. When the driven gear 208 drives the eccentric wheel 209 to rotate, the convection fan 212 also rotates. When the convection fan 212 rotates, the air flow speed through the convection hole 210 and the convection hole 211 is increased. The increase of the air flow speed near the convection fan 212 accelerates the heat dissipation speed of the wire feeding wheel 201, the connecting gear 207, the driven gear 208 and the eccentric wheel 209, reduces the mechanical wear and tear, and prolongs the service life.

[0078] Subsequently, the wire is evenly divided through the rubber ring 223, the wire conveying electric push rod 224 applies pressure to the wire according to the wire diameter, the wire conveying motor 228 is started, the wire conveying motor 228 drives the wire between the wire conveying bottom wheel 226 and the wire conveying top wheel 225 to move accurately and stably, the wire is supported and limited by the wire pipe 229, and the wire moves along the wire pipe 229. At this time, the gap between the two clamping rollers 312 on each clamping sliding rail 307 in the fixed frame 301 is aligned with the center of the assembly ring 231. When the movable end of the wire passes through the cleaning cylinder 230, the assembly ring 231 and the cutting knife 235, the wire conveying motor 228 drives the movable end of the wire to move between the adjacent two clamping rollers 312;

[0079] When the wire passes through the inside of the cleaning cylinder 230, the air conveying pump 324 and the dust collector 326 are started, the air conveying pump 324 conveys air to the inside of the air conveying pipe 320, the corresponding electric control valve 321 is opened, high-pressure air enters the inside of the arc-shaped air box 322, and then is sprayed to the inside of the cleaning cylinder 230 through the air jet hole 323. The high-pressure air blows the surface of the passing wire, blows off the remaining dust on the surface of the wire, and ensures the smoothness of the surface of the wire under the suction of the dust collector 326. The surface of the wire is smoother during subsequent wire harness twisting, and the quality of the wire harness is further improved;

[0080] The clamping motor 308 in the fixed frame 301 is started, the clamping motor 308 drives the bidirectional screw rod 309 connected thereto to rotate, the adjacent two clamping sliding blocks 310, the servo motor 311 and the clamping roller 312 are close to each other, the clamping roller 312 clamps and fixes the movable end of the wire. Then, the twisting electric sliding rail 302 is started, the twisting electric sliding rail 302 drives the movable frame 303 to move close to the fixed frame 301. When the movable frame 303 moves close to the fixed frame 301, the twisting electric sliding rail 302 is temporarily stopped. At this time, the gap between the two clamping rollers 312 on each clamping sliding rail 307 in the movable frame 303 is aligned with the corresponding movable end of the wire. Then, the driving motor 203, the wire conveying motor 228 and the servo motor 311 in the fixed frame 301 are started, the movable end of the wire moves between the adjacent two clamping rollers 312 in the movable frame 303, the clamping motor 308 in the movable frame 303 is started, and the clamping roller 312 clamps the movable end of the wire. Subsequently, the driving motor 203, the wire conveying motor 228, the twisting electric sliding rail 302 and the servo motor 311 in the fixed frame 301 are started, the twisting electric sliding rail 302 drives the movable end of the wire to move in the direction of the electric clamping jaw 317. When the length of the wire fixed between the fixed frame 301 and the movable frame 303 meets the required length of the twisted wire harness, the twisting electric sliding rail 302 is temporarily stopped, and the cutting electric push rod 234 is started to cut the wire;

[0081] The adjusting electric slide rail 304 and the adjusting electric push rod 305 are started, the adjusting electric slide rail 304 and the adjusting electric push rod 305 drive the cut three electric wires to be close to each other, so that the three electric wires are uniformly distributed in space, at this time, the three electric clamping jaws 317 correspond to the movable ends of the three electric wires one by one, then the stranded electric push rod 313 drives the electric clamping jaw 317 to be close to the movable end of the electric wire in the movable frame 303, the three electric clamping jaws 317 clamp the movable ends of the three electric wires, after clamping, the clamping roller 312 in the movable frame 303 is separated from the electric wire, the adjusting electric slide rail 304 in the movable frame 303 drives the clamping roller 312 to be away from the electric clamping jaw 317, so that the clamping roller 312 in the movable frame 303 does not affect the movement of the electric clamping jaw 317 to the fixed frame 301, then the stranded electric push rod 313 and the stranded electric machine 314 are operated, the stranded electric machine 314 drives the assembly disc 315 and the electric clamping jaw 317 to rotate, the stranded electric push rod 313 drives the electric clamping jaw 317 to move to the fixed frame 301 at a constant speed, so as to realize the stranding of the wire harness, when the wire harness is stranded, the tension sensor 306 can feed back the tension data of each wire harness to the controller, through the feedback tension data, the adjusting electric push rod 305 controls the distance between the three stranded electric wires in real time, so as to avoid that the tension between the three wires is too large or too small, so that the stranding pitch of the stranded wire harness is more uniform and stable, the quality of the produced automobile wire harness is better, after the stranding is completed, the clamping roller 312 is separated from the wire harness, under the action of gravity, the wire harness falls into the collecting box 318, and the collecting is completed.

[0082] The above stranding operation is repeated, the electric wire is automatically fed and stranded, and the subsequent automatic continuous production of the wire harness is realized, so that the production efficiency is high.

[0083] When the electric wire passes through the inside of the assembly ring 231, the camera 232 can shoot the surface of the electric wire, and the shooting data is transmitted to the controller, when the insulating layer of the electric wire surface has damage or holes, the driving motor 203 and the conveying motor 228 drive the electric wire to move, and the cutting knife 235 automatically cuts off the small section of the electric wire, so as to avoid that the defective electric wire participates in the stranding of the wire harness, and the stranding quality is improved, the residual material box 319 collects the cut-off residual material, facilitates subsequent processing, and manual processing is not required during the process, so that the production efficiency is higher.

[0084] Finally, it should be noted that: the above only describes the preferred examples of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A stranding machine for automobile wiring harness production, comprising a support frame (1), characterized in that: A quality improvement component (2) is provided at the top of the support frame (1), and the quality improvement component (2) includes a wire feeding wheel (201). A wire feeding wheel (201) is installed at the top of the support frame (1). An installation hole passage (202) is provided inside the wire feeding wheel (201). A driving motor (203) is installed at the top of the support frame (1). The output end of the driving motor (203) is connected to one end of the rotating shaft of the wire feeding wheel (201) through a connecting flange (204). The other end of the rotating shaft of the wire feeding wheel (201) is connected to a gear ring (205). An eccentric wheel (209) is rotatably installed inside the installation hole passage (202). A gear rack (206) is installed at the top of the support frame (1). A connecting gear (207) and a driven gear (208) are sequentially rotatably installed at the top and bottom of the gear rack (206). The gear ring (205) is engaged with the connecting gear (207), and the connecting gear (207) is engaged with the driven gear (208). One end of the rotating shaft of the eccentric wheel (209) is connected to one end of the rotating shaft of the driven gear (208). A fixing frame (213) is installed at the top of the support frame (1) on one side of the driving motor (203). A U-shaped frame (214) is installed at the top of the fixing frame (213). An adjusting plate (215) is slidably connected inside the U-shaped frame (214). A pressing spring (217) is connected to the bottom of the adjusting plate (215) to a pressing wheel (216). The bottom of the pressing wheel (216) is embedded in the top of the wire feeding wheel (201). A limiting slide bar (236) is connected to the top of the pressing wheel (216). The limiting slide bar (236) is slidably connected with the adjusting plate (215). One side of the top of the U-shaped frame (214) is connected to an adjusting screw (218) through a screw hole. The bottom of the adjusting screw (218) is rotatably connected to the top of the adjusting plate (215).

2. A stranding machine for automobile wiring harness production according to claim 1, characterized in that: A number of first convection holes (210) are evenly provided on one side of the connecting flange (204). A number of second convection holes (211) are evenly provided on one side of the gear rack (206). The other end of the rotating shaft of the eccentric wheel (209) is connected to a convection fan (212).

3. A stranding machine for automobile wiring harness production according to claim 2, characterized in that: A guiding wheel (219) and a straightening machine (220) are sequentially installed at one end of the support frame (1). An operating platform (221) is installed at the other end of the support frame (1). A wire dividing plate (222) is installed on one side of the top of the operating platform (221). Three rubber rings (223) are installed at equal intervals in the middle of the wire dividing plate (222).

4. A stranding machine for automobile wiring harness production according to claim 3, characterized in that: Three conveying bottom wheels (226) are installed in the middle of the top of the operating platform (221), and the rotating shafts of the three conveying bottom wheels (226) are connected by a linkage rod (227). A conveying motor (228) is installed at one end of a conveying bottom wheel (226) on the top of the operating platform (221), and the conveying motor (228) is connected to one end of the rotating shaft of the adjacent conveying bottom wheel (226). A conveying electric push rod (224) is installed at the top of the conveying bottom wheel (226) on the top of the operating platform (221), and the output end of the conveying electric push rod (224) is connected to three conveying top wheels (225). A supporting wire tube (229) is installed on one side of each conveying bottom wheel (226) on the top of the operating platform (221).

5. A stranding machine for automobile wiring harness production according to claim 4, characterized in that: One end of the support wire tube (229) is connected to one end of the cleaning cylinder (230), and the other end of the cleaning cylinder (230) is installed with an assembly ring (231), and three cameras (232) are installed at equal intervals inside the assembly ring (231). A cutting frame (233) is installed at one end of the operating table (221) near the assembly ring (231), and three cutting electric push rods (234) are installed at the top and bottom of the inner side of the cutting frame (233), and the output end of the cutting electric push rod (234) is connected to a cutting knife (235).

6. A stranding machine for automobile wiring harness production according to claim 5, characterized in that: A wire harness twisting assembly (3) is provided on one side of the cutting frame (233), and the wire harness twisting assembly (3) includes a fixing frame (301); A fixed frame (301) is installed on one side of the cutting frame (233), a twisted electric slide rail (302) is installed on the top of one side of the fixed frame (301), the output end of the twisted electric slide rail (302) is connected to the movable frame (303), two adjusting electric slide rails (304) are installed on both sides of the inner bottom of the fixed frame (301) and the movable frame (303), and an adjusting electric slide rail (304) is also installed in the middle of the inner top of the fixed frame (301) and the movable frame (303), the slider at the output end of the adjusting electric slide rail (304) is connected to the adjusting electric push rod (305), the adjusting electric push rod The output end of the rod (305) is connected to a clamping slide rail (307) through a tension sensor (306), a clamping motor (308) is installed at one end of the clamping slide rail (307), a bidirectional screw (309) is rotatably installed inside the clamping slide rail (307), clamping sliders (310) are slidably installed at both ends of the clamping slide rail (307), both ends of the bidirectional screw (309) are connected to adjacent clamping sliders (310) through screw holes, a servo motor (311) is installed at the top end of the clamping slider (310), and a clamping roller (312) is connected to the output end of the servo motor (311); A twisting electric push rod (313) is installed on one side of the movable frame (303), the output end of the twisting electric push rod (313) is connected to a twisting motor (314), the output end of the twisting motor (314) is connected to an assembly disk (315), a surface of the assembly disk (315) is provided with a plurality of assembly holes (316), and one end of the assembly disk (315) is fixed with three electric clamps (317) at equal angles through the plurality of assembly holes (316).

7. A stranding machine for automobile wiring harness production according to claim 6, characterized in that: An air supply pipe (320) is installed on the top of the cleaning cylinder (230), an air pump (324) is installed on the top of the operating table (221) near one end of the air supply pipe (320), the air outlet end of the air pump (324) is connected to one end of the air supply pipe (320), the bottom of the air supply pipe (320) is connected to three arc-shaped air boxes (322) through three electric control valves (321), three air injection holes (323) are evenly opened on the surface of the cleaning cylinder (230), and the arc-shaped air box (322) is connected to the three air injection holes (323) on the surface of the adjacent cleaning cylinder (230), a dust collection box (325) is installed on the top of the operating table (221) at the bottom of the cleaning cylinder (230), a dust collector (326) is installed on one side of the operating table (221), and the air suction end of the dust collector (326) is connected to one end of the dust collection box (325); A collecting box (318) is installed at the bottom of the twisted electric slide rail (302), and a waste material box (319) is installed at the bottom of one end of the collecting box (318) close to the cutting knife (235).

8. The stranding machine for automobile wiring harness production according to claim 7, characterized in that: The input ends of the driving motor (203), the conveying electric push rod (224), the conveying motor (228), the camera (232), the cutting electric push rod (234), the twisting electric slide rail (302), the adjusting electric slide rail (304), the adjusting electric push rod (305), the tension sensor (306), the clamping slide rail (307), the clamping motor (308), the servo motor (311), the twisting electric push rod (313), the twisting motor (314), the electric clamp (317), the electric control valve (321), the air pump (324) and the vacuum cleaner (326) are electrically connected to the output end of the external controller, and the input end of the external controller is electrically connected to the output end of the external power supply.

9. A process for producing automotive wiring harnesses, characterized in that: The construction operation of the stranding machine for automobile wiring harness production according to claim 8 comprises the following steps: S1, stranding preparation process, the three wire movable ends sequentially pass through the straightening machine (220) and the guide wheel (219) into the middle of the pressure wheel (216) and the wire feeding wheel (201), and the wire movable ends then pass through the rubber ring (223), and then pass through the middle of the conveying bottom wheel (226) and the conveying top wheel (225), and then pass through the supporting wire tube (229), the cleaning cylinder (230) and the assembly ring (231); S2, a vibration conveying process, the drive motor (203) is started, the drive motor (203) drives the connecting flange (204), the wire feeding wheel (201), the gear ring (205) and the eccentric wheel (209) to rotate, the wire passes through the inside of the rubber ring (223) to evenly divide the wire, the conveying motor (228) is started, and the movable end of the wire moves to the middle of two adjacent clamping rollers (312); S3, dust removal process, the air pump (324) and the dust collector (326) are started, the corresponding electric control valve (321) is opened, high-pressure air is sprayed into the interior of the cleaning cylinder (230) through the air injection hole (323), and the dust collector (326) is started; S4, fixed cutting process, the clamping motor (308) inside the fixed frame (301) is started, the clamping roller (312) clamps and fixes the movable end of the wire, then the twisted electric slide (302) is started, the movable frame (303) approaches the fixed frame (301), the driving motor (203), the conveying motor (228) and the servo motor (311) inside the fixed frame (301) are started, the clamping motor (308) inside the movable frame (303) is started, the clamping roller (312) clamps the movable end of the wire, the driving motor (203), the conveying motor (228), the twisted electric slide (302) and the servo motor (311) inside the fixed frame (301) are started, and the cutting electric push rod (234) cuts the wire; S5, the wire harness twisting process, the adjusting electric slide rail (304) and the adjusting electric push rod (305) are started, then the electric clamping claw (317) clamps the movable ends of the three wires, the clamping roller (312) inside the movable frame (303) is separated from the wires, and the adjusting electric slide rail (304) inside the movable frame (303) drives the clamping roller (312) away from the electric clamping claw (317), and then the twisting electric push rod (313) and the twisting motor (314) are operated.

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