A new energy vehicle wiring harness production device with straightening function

Abstract

The present invention discloses a new energy vehicle wiring harness production device with a straightening function, and relates to the technical field of new energy vehicle wiring harness production. It includes a main box, a cable collection tray, a straightening component, a wire feeding component, a guide adjustment component, and a wire stripping component. The present invention uses a guide adjustment component to clamp and pull the wire harness. When the first wire feeding component and the second wire feeding component clamp and tighten the wire harness, the clamping slider squeezes out the limit block in the groove under the action of reverse pulling force, and the limit block drives the contact to squeeze the electric ceramic sheet. The piezoelectric ceramic sheet is compressed to generate an electrical signal. If the clamping of the wire harness by the first wire feeding component and the second wire feeding component is loose, the wire harness will slide in the first wire feeding component and the second wire feeding component under the action of tension, and the clamping slider cannot squeeze the limit block out of the groove, and the control system cannot receive the electrical signal. The control system judges the spacing between the first wire feeding component and the second wire feeding component based on this, thereby realizing the detection and adjustment of the spacing between the wire feeding components.

Description

Technical Field

[0001] The invention relates to the technical field of new energy vehicle wiring harness production, and in particular to a new energy vehicle wiring harness production device with a straightening function. Background Art

[0002] The wiring harness of new energy vehicles is a key component of the power output of electric vehicles. It is composed of high-voltage connectors, cables, coverings and protective plates, etc., and is responsible for the efficient and safe transmission of electrical energy. Its production process includes design drawings, material selection, equipment preparation, wiring harness processing (wire cutting, wire stripping, crimping, assembly, shielding and protection), wiring harness testing and wiring harness packaging. As the main equipment for wire harness processing, the wire harness production equipment realizes the fully automatic processing, assembly and testing of the wire harness through components such as wire feeding devices, wire cutting devices, stripping devices, crimping devices, assembly devices, testing devices and output devices.

[0003] The existing wire harness production device needs to adjust the wire feeding device before work. When adjusting, it is necessary to first adjust the spacing of the wire feeding device so that the wire feeding device clamps the wire in a static state, and then manually apply tension to the wire. When the wire cannot be pulled, it indicates that the wire feeding device is now tightly clamped and the spacing meets the requirements. This adjustment method is not only cumbersome, but also difficult to ensure the adjustment accuracy due to the error in the tension applied manually each time. Moreover, after the wire feeding device is used for a long time, if the belt is worn, the friction force on the upper and lower parts of the wire harness will be inconsistent. In this case, the wire harness will deflect, affecting the wire stripping quality. Summary of the invention

[0004] The purpose of the present invention is to provide a new energy vehicle wiring harness production device with a straightening function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy vehicle wiring harness production device with a straightening function, comprising a main box, a wire collection disk rotatably installed on the main box, a straightening assembly installed on the main box, two sets of wire feeding assemblies installed on the main box, a guide adjustment assembly installed on the main box, a wire stripping assembly installed on the main box, the guide adjustment assembly and the wire stripping assembly are located between the two sets of wire feeding assemblies, and a crimping device is installed on the main box; the guide adjustment assembly comprises an adjusting cylinder, a guide shell and a clamping cylinder, the adjusting cylinder is installed in the main box, the clamping cylinder is slidably installed in the main box, the guide shell penetrates the main box and is connected to the output shaft of the adjusting cylinder, the guide shell is slidably connected to the main box, an adjusting feedback device is installed on the output shaft of the clamping cylinder, and the adjusting feedback device is slidably connected to the guide shell; a guide hole is provided on the guide shell, and the guide hole is used to allow the wiring harness to pass through.

[0006] A control system is provided in the main box, and the control system is used to control the entire wire harness production device; the crimping device is used to install the wire harness terminals on the stripped wire harness.

[0007] After the adjustment is completed, the control system starts the driving motor, and the driving motor drives the first wire feeding assembly and the second wire feeding assembly to rotate through the driving screw, and the first belt and the second belt drive the wire harness to move, and the wire harness enters the straightening assembly from the collection disk, and the straightening assembly straightens the wire harness, and then the wire harness passes through the guide adjustment assembly to reach the wire stripping assembly, and the wire stripping assembly strips the surface of the wire harness, and then cuts the wire harness, and the wire feeding assembly sends the stripped wire harness to the crimping device, and the crimping device installs the wire harness terminal on the stripped wire harness to complete the production and processing of the wire harness.

[0008] Furthermore, the adjustment feedback device includes an adjustment bracket, which is slidably connected to the guide shell, and the adjustment bracket is connected to the output shaft of the clamping cylinder. The third electric telescopic rod is installed on the adjustment bracket, and an adjustment plate is installed on the output shaft of the third electric telescopic rod. A number of connecting rods are slidably installed on the adjustment plate, an end piece is installed at one end of the connecting rod, and a contact is installed at the top of the end piece. A number of feedback terminals are installed on the adjustment bracket, and the number and position of the feedback terminals correspond to the number and position of the contacts. A limit block is installed at the other end of the connecting rod, and an adjustment spring is installed between the limit block and the adjustment plate.

[0009] Furthermore, the adjustment feedback device also includes a sliding rod, which is installed at the bottom end of the adjustment bracket. A clamping slider is slidably installed on the sliding rod. The clamping slider is slidably connected to the adjustment bracket. A plurality of grooves are provided on the clamping slider. The number and positions of the grooves correspond to the number and positions of the limit blocks. The limit blocks are engaged with the grooves, and a reset spring is provided between the clamping slider and the adjustment bracket.

[0010] When the wire harness production device is working, the feedback devices are adjusted to separate from each other so that the wire harness can pass through the guide hole.

[0011] In the adjustment state, the output shaft of the third electric telescopic rod drives the adjustment plate to press down the adjustment spring, and the adjustment spring is compressed and transmits the elastic force to the limit block. The limit block is compressed and tightly engaged with the groove on the clamping slider; due to the engagement of the limit block, when the clamping slider is displaced laterally, sufficient lateral force is required to enable the clamping slider to extrude the limit block. When the limit block is extruded, it will drive the contact to contact the feedback terminal and generate an electrical signal. The greater the pressure of the limit block on the groove, the greater the lateral force required for the displacement of the clamping slider, the more difficult it is to generate the corresponding electrical signal, and the lower the sensitivity of the guide adjustment component; accordingly, the control system drives the displacement of the adjustment plate through the third electric telescopic rod to control the compression of the adjustment spring, and the corresponding compression of the adjustment spring is generated according to different wiring harness specifications. The change in the compression of the adjustment spring changes the pressure on the limit block, and the pressure of the limit block on the groove also changes accordingly, and finally changes the lateral force required for the displacement of the clamping slider, so as to achieve the purpose of changing the sensitivity of the adjustment feedback device according to the clamping requirements of different wiring harnesses.

[0012] Furthermore, the feedback terminal comprises a feedback housing, an elastic diaphragm is installed in the feedback housing, piezoelectric ceramic sheets are installed between the elastic diaphragms, and the number and position of the piezoelectric ceramic sheets correspond to the number and position of the contacts.

[0013] After the wire harness is clamped and fixed, the control system turns on the clamping cylinder, which drives the adjustment feedback devices closer to each other, and the clamping sliders on the upper and lower adjustment feedback devices clamp and fix the wire harness. After that, the control system turns on the adjustment cylinder, which drives the entire guide adjustment assembly to move horizontally. Since the wire harness is clamped and fixed by the clamping slider, the guide adjustment assembly will pull the wire harness horizontally through the clamping slider when it moves, and the wire harness will give the clamping slider a reverse pulling force when pulling.

[0014] If the first wire feeding assembly and the second wire feeding assembly clamp the wire harness tightly, the wire harness will not slip between the first wire feeding assembly and the second wire feeding assembly under the action of tension. As the displacement of the guide adjustment assembly increases, the tension on the wire harness increases, and the reverse tension on the clamping slider also increases. When the reverse tension exceeds a critical value, the clamping slider squeezes out the limit block in the groove under the action of the reverse tension, and the clamping slider produces a horizontal displacement relative to the adjustment bracket, and after displacing a certain distance, it engages with the limit block again. When the limit block is squeezed out of the groove, it will produce an upward displacement, and the limit block drives the connecting rod, the end piece and the contact to move upward. When the limit block completely disengages from the groove, the contact enters the feedback housing and squeezes the piezoelectric ceramic sheet in the elastic diaphragm. According to the piezoelectric principle, the piezoelectric ceramic sheet will generate an electrical signal when it is compressed. The electrical signal is transmitted to the control system through the wire. After receiving the electrical signal, the control system turns on the third electric telescopic rod, and the output shaft of the third electric telescopic rod drives the adjustment plate to move upward. The adjustment plate drives the limit block on the connecting rod to move upward through the end plate. The limit block moves upward and disengages from the groove. After the clamping slider loses the limit block, it moves horizontally and resets under the elastic force of the reset spring. After that, the control system controls the guide adjustment component to reset. If the first wire feeding component and the second wire feeding component loosen the clamping of the wire harness, the wire harness will slide in the first wire feeding component and the second wire feeding component under the action of the tension. The reverse tension on the clamping slider is small, and the limit block cannot be squeezed out of the groove, so the control system cannot receive the electrical signal. Based on this, the control system judges the spacing between the first wire feeding component and the second wire feeding component, thereby realizing the detection and adjustment of the spacing between the wire feeding components.

[0015] Furthermore, the wire feeding assembly includes a positioning frame and a second wire feeding assembly, the positioning frame is installed in the main box, an adjusting motor is installed on the top of the positioning frame, an adjusting screw is installed on the output shaft of the adjusting motor, an adjusting slide is slidably installed on the positioning frame, the adjusting screw passes through the positioning frame and is threadedly connected to the adjusting slide, a wear detector is installed on the positioning frame, the first wire feeding assembly is installed on the positioning frame, the second wire feeding assembly is installed on the main box, a driving motor is installed on the positioning frame, a driving screw is installed on the output shaft of the driving motor, the driving screw is provided with mutually symmetrical threads, the driving screw is engaged with the first wire feeding assembly for transmission, and the driving screw is engaged with the second wire feeding assembly for transmission.

[0016] Furthermore, the first wire feeding assembly includes a first main shaft, a first belt and a first secondary shaft. The first main shaft is rotatably mounted on the adjusting slide. One end of the first main shaft passes through the main box and is installed with a first main wheel. The other end of the first main shaft is installed with a first gear plate. A plurality of first transmission teeth are installed on the first gear plate. The first gear plate is meshed with the driving screw through the first transmission teeth for transmission. The first secondary shaft is installed on the adjusting slide. The first secondary shaft is rotatably mounted with a first secondary wheel. The first main wheel and the first secondary wheel are connected by a first belt transmission.

[0017] When the wire harness production device is working, the driving motor drives the driving screw to rotate, the driving screw drives the first gear plate to rotate through the first transmission tooth, the first gear plate drives the first main wheel to rotate through the first main shaft, the first main wheel drives the first secondary wheel to rotate through the first belt, and the second belt rotates similarly. The first belt and the second belt cooperate with each other to drive the wire harness to move through rotation.

[0018] Furthermore, the second wire feeding assembly includes a second main shaft, a second secondary shaft and a second belt. The second main shaft is rotatably mounted on the main housing. A second gear plate is mounted on one end of the second main shaft. A plurality of second transmission teeth are mounted on the second gear plate. The second gear plate is meshed with the driving screw through the second transmission teeth for transmission. A second main wheel is mounted on the other end of the second main shaft. The second secondary shaft is mounted on the main housing. A second secondary wheel is rotatably mounted on the second secondary shaft. The second secondary wheel is connected to the second main wheel through a second belt transmission.

[0019] Before the wire harness production device works, the control system starts the adjusting motor, the adjusting motor drives the adjusting screw to rotate, the adjusting screw drives the adjusting slide to slide downward through the thread, the adjusting slide drives the first wire feeding assembly thereon to slide downward, the first wire feeding assembly moves closer to the second wire feeding assembly, the first main wheel and the first auxiliary wheel cooperate with the second main wheel and the second auxiliary wheel to clamp the wire harness, at this time, the driving motor is stationary, the driving screw is stationary, and the first wire feeding assembly and the second wire feeding assembly do not rotate.

[0020] Furthermore, the wear detector includes a first electric telescopic rod, a detection shell and a second electric telescopic rod, the first electric telescopic rod is installed on a positioning frame, the output shaft of the first electric telescopic rod passes through the positioning frame, the second electric telescopic rod is installed in a main box, and measuring roller assemblies are installed on the output shafts of the first electric telescopic rod and the second electric telescopic rod, and detection terminals are installed on the measuring roller assemblies, differential springs are installed between the detection terminals, the detection terminals are slidably installed in the detection shell, the measuring roller assembly is rotatably connected to the detection shell, and the detection shell is installed on the positioning frame.

[0021] Furthermore, the measuring roller assembly includes a connecting part, which is respectively installed on the output shafts of the first electric telescopic rod and the second electric telescopic rod, a roller shaft is rotatably installed on the connecting part, a detection roller is installed at one end of the roller shaft, a rope drum is installed at the other end of the roller shaft, the roller shaft is movably connected to the detection shell, a measuring rope is installed on the rope drum, and one end of the measuring rope is connected to the detection terminal.

[0022] Furthermore, the detection terminal includes an end shell, which is connected to the measuring rope, a sliding ring is slidably installed in the end shell, a contact ring is installed at the bottom of the sliding ring, a detection spring is installed between the sliding ring and the end shell, and a piezoelectric ceramic ring is installed in the end shell.

[0023] The control system regularly detects the wear of the first belt and the second belt, the control system moves the first wire feeding assembly upward and resets, and then drives the first wire feeding assembly and the second wire feeding assembly to rotate through the driving motor, the control system synchronously turns on the first electric telescopic rod and the second electric telescopic rod, the first electric telescopic rod and the second electric telescopic rod each drive the measuring roller assembly to extend the same distance, so that the two detection rollers are respectively fitted with the first belt and the second belt, the first belt and the second belt drive the detection roller to rotate through friction, the detection roller drives the rope drum to rotate through the roller shaft, the rotation of the rope drum drives the measuring rope to wind, the measuring rope is wound while pulling the detection terminal to slide in the detection shell, the two detection terminals slide toward the two ends of the detection shell under the pulling of the measurement rope, when the detection terminal is driven to the end of the detection shell, the sliding ring and the end of the detection shell are squeezed, the sliding ring overcomes the elastic force of the detection spring under pressure and displaces relative to the end shell, the sliding ring drives the contact ring to squeeze the piezoelectric ceramic ring, The electric ceramic ring generates an electrical signal after being compressed. When the wear of the first belt and the second belt is within the specified range and the surface roughness of the first belt and the second belt is similar, the time interval of the electrical signals generated by the two detection terminals is within the standard value range; when the wear degree of the first belt and the second belt is different, the friction between the belt with greater wear and the detection roller is smaller, and the friction between the belt with greater wear and the detection roller is larger. The detection terminal on the side with greater friction generates an electrical signal first, and the time interval between the two electrical signals is greater than the standard value. The control system determines that the electrical signal is abnormal; when the wear of the first belt and the second belt is large, due to the small friction between the belt and the detection roller, under the tension of the differential spring, the detection roller will slip with the belt, and the detection roller cannot drive the rope drum to pull the detection terminal to the end of the detection shell. At this time, the control system cannot receive the electrical signal of the detection terminal corresponding to the worn belt, and the control system determines that the electrical signal is abnormal. When the electrical signal is abnormal, the control system sends an alarm to the staff, and the staff inspects and maintains the first belt and the second belt, thereby achieving the purpose of detecting the wear degree of the first belt and the second belt.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The control system regularly detects the wear of the first belt and the second belt. The wear detector converts the friction between the belt and the detection roller into the tension of the detection rope on the detection terminal, and then converts the tension into the displacement of the sliding ring. The sliding ring drives the contact ring to squeeze the piezoelectric ceramic ring to generate an electrical signal. The control system determines the wear of the first belt and the second belt based on the two received electrical signals, thereby achieving the purpose of detecting the wear of the first belt and the second belt.

[0026] 2. Use the adjusting motor to drive the adjusting screw to rotate, and the adjusting screw drives the first wire feeding assembly to move downward through the adjusting slide, so that the first wire feeding assembly and the second wire feeding assembly are brought closer and clamp the wire harness, thereby cooperating with the guide adjustment assembly to detect and adjust the spacing between the wire feeding assemblies. When the wire harness production device is working, the first wire feeding assembly and the second wire feeding assembly rotate to drive the wire harness to move, so that the wire feeding assembly can achieve the effect of wire harness transportation and auxiliary adjustment.

[0027] 3. The control system drives the adjustment plate to move through the third electric telescopic rod to control the compression of the adjustment spring. According to different wiring harness specifications, the adjustment spring produces corresponding compression. The change in the compression of the adjustment spring changes the pressure on the limit block, and the pressure of the limit block on the groove also changes accordingly, which ultimately changes the lateral force required for the displacement of the clamping slider, thereby achieving the purpose of changing the sensitivity of the adjustment feedback device according to the clamping requirements of different wiring harnesses.

[0028] 4. Use the guide adjustment component to clamp and pull the wire harness. When the first wire feeding component and the second wire feeding component clamp and tighten the wire harness, the clamping slider will squeeze out the limit block in the groove under the action of reverse pulling force. The limit block drives the contact to enter the feedback housing and squeeze the piezoelectric ceramic sheet in the elastic diaphragm. The piezoelectric ceramic sheet generates an electrical signal under pressure. If the clamping of the wire harness by the first wire feeding component and the second wire feeding component becomes loose, the wire harness will slide in the first wire feeding component and the second wire feeding component under the action of pulling force. The reverse pulling force on the clamping slider is small, and the limit block cannot be squeezed out of the groove, so the control system cannot receive the electrical signal. The control system judges the distance between the first wire feeding component and the second wire feeding component based on this, thereby realizing the detection and adjustment of the distance between the wire feeding components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall stereogram of the wire harness production device of the present invention;

[0030] Figure 2 The three-dimensional wire feeding assembly of the present invention Figure 1 ;

[0031] Figure 3 The three-dimensional wire feeding assembly of the present invention Figure 2 ;

[0032] Figure 4 is a three-dimensional diagram of a first wire feeding assembly of the present invention;

[0033] Figure 5 is a three-dimensional diagram of the wear detector of the present invention;

[0034] Figure 6 is a cross-sectional view of the detection terminal of the present invention;

[0035] Figure 7 A three-dimensional diagram of the guide adjustment assembly of the present invention;

[0036] Figure 8 A stereogram of the feedback adjustment device of the present invention;

[0037] Fig. 9 For the present invention Figure 8 A partial enlarged view of area A.

[0038] In the figure: 1, main box; 2, cable collection plate; 3, straightening assembly; 4, wire feeding assembly; 5, guide adjustment assembly; 6, wire stripping assembly; 41, first wire feeding assembly; 42, second wire feeding assembly; 43, wear detector; 44, positioning frame; 45, adjustment motor; 46, adjustment screw rod; 47, adjustment slide plate; 48, drive motor; 49, drive screw rod; 411, first main shaft; 412, first main wheel; 413, first belt; 414, first secondary wheel; 415, first secondary shaft; 416, first toothed disc; 417, first transmission tooth; 421, second main shaft; 422, second main wheel; 423, second belt; 424, second secondary wheel; 425, second secondary shaft; 426, second toothed disc; 427, second transmission tooth; 431, first electric telescopic rod; 432, second electric telescopic rod; 433, measuring roller assembly; 434, detection shell; 435, differential spring; 436, detection terminal; 4361, sliding ring; 4362, end shell; 4363, detection spring; 4364, piezoelectric ceramic ring; 4365, contact ring; 51, guide shell; 52, clamping cylinder; 53, adjustment feedback device; 54, adjustment cylinder; 511, guide hole; 531, adjustment bracket; 532, third electric telescopic rod; 533, feedback terminal; 534, pressing slider; 53 5. Sliding rod; 536. End piece; 537. Reset spring; 538. Limit block; 539. Contact; 5310. Adjusting spring; 5311. Connecting rod; 5312. Adjusting plate; 5331. Feedback housing; 5332. Elastic diaphragm; 5333. Piezoelectric ceramic sheet; 4331. Detection roller; 4332. Roller shaft; 4333. Connecting piece; 4334. Rope drum; 4335. Measuring rope; 5341. Groove. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figure 1-Figure 9As shown, the present invention provides a technical solution for a new energy vehicle wiring harness production device with a straightening function: it includes a main box 1, a wire collection disk 2 is rotatably installed on the main box 1, a straightening component 3 is installed on the main box 1, two sets of wire feeding components 4 are installed on the main box 1, a guide adjustment component 5 is installed on the main box 1, a wire stripping component 6 is installed on the main box 1, the guide adjustment component 5 and the wire stripping component 6 are located between the two sets of wire feeding components 4, and a crimping device is installed on the main box 1; the guide adjustment component 5 includes an adjusting cylinder 54, a guide shell 51 and a clamping cylinder 52, the adjusting cylinder 54 is installed in the main box 1, the clamping cylinder 52 is slidably installed in the main box 1, the guide shell 51 passes through the main box 1 and is connected to the output shaft of the adjusting cylinder 54, the guide shell 51 is slidably connected to the main box 1, an adjusting feedback device 53 is installed on the output shaft of the clamping cylinder 52, and the adjusting feedback device 53 is slidably connected to the guide shell 51; a guide hole 511 is provided on the guide shell 51, and the guide hole 511 is used to allow the wiring harness to pass through. A control system is provided in the main box 1, and the control system is used to control the entire wire harness production device; the crimping device is used to install the wire harness terminal on the stripped wire harness.

[0041] The adjustment feedback device 53 includes an adjustment bracket 531, which is slidably connected to the guide shell 51, and the adjustment bracket 531 is connected to the output shaft of the clamping cylinder 52. A third electric telescopic rod 532 is installed on the adjustment bracket 531, and an adjustment plate 5312 is installed on the output shaft of the third electric telescopic rod 532. A plurality of connecting rods 5311 are slidably installed on the adjustment plate 5312, an end piece 536 is installed at one end of the connecting rod 5311, and a contact 539 is installed at the top of the end piece 536. A plurality of feedback terminals 533 are installed on the adjustment bracket 531, and the number and position of the feedback terminals 533 correspond to the number and position of the contacts 539. A limit block 538 is installed at the other end of the connecting rod 5311, and an adjustment spring 5310 is installed between the limit block 538 and the adjustment plate 5312.

[0042] The adjustment feedback device 53 also includes a slide bar 535, which is mounted at the bottom end of the adjustment bracket 531. A pressing slider 534 is slidably mounted on the slide bar 535. The pressing slider 534 is slidably connected to the adjustment bracket 531. The pressing slider 534 is provided with a plurality of grooves 5341. The number and position of the grooves 5341 correspond to the number and position of the limit blocks 538. The limit blocks 538 are engaged with the grooves 5341. A return spring 537 is provided between the pressing slider 534 and the adjustment bracket 531. When the wire harness production device is working, the adjustment feedback devices 53 are separated from each other so that the wire harness can pass through the guide hole 511.

[0043] In the adjustment state, the output shaft of the third electric telescopic rod 532 drives the adjustment plate 5312 to press down the adjustment spring 5310. The adjustment spring 5310 is compressed and transmits the elastic force to the limit block 538. The limit block 538 is compressed and tightly fits in the groove 5341 on the clamping slider 534. Due to the fitting of the limit block 538, when the clamping slider 534 is displaced laterally, sufficient lateral force is required to enable the clamping slider 534 to squeeze out the limit block 538. When the limit block 538 is squeezed out, it drives the contact 539 to contact the feedback terminal 533 and generate an electrical signal. The tighter the limit block 538 presses the groove 5341, the more lateral force is required for the clamping slider 534 to move laterally. The greater the force, the more difficult it is to generate the corresponding electrical signal, and the lower the sensitivity of the guide adjustment component 5; accordingly, the control system drives the adjustment plate 5312 to move through the third electric telescopic rod 532 to control the compression degree of the adjustment spring 5310, and makes the adjustment spring 5310 produce corresponding compression degree according to different wiring harness specifications. The change of the compression degree of the adjustment spring 5310 changes the pressure on the limit block 538, and the pressure of the limit block 538 on the groove 5341 also changes accordingly, and finally changes the lateral force required for the displacement of the clamping slider 534, so as to achieve the purpose of changing the sensitivity of the adjustment feedback device 53 according to the clamping requirements of different wiring harnesses.

[0044] The feedback terminal 533 includes a feedback housing 5331 , in which an elastic diaphragm 5332 is installed, and between the elastic diaphragms 5332 , piezoelectric ceramic sheets 5333 are installed. The number and position of the piezoelectric ceramic sheets 5333 correspond to the number and position of the contacts 539 .

[0045] The wire feeding assembly 4 includes a positioning frame 44 and a second wire feeding assembly 42. The positioning frame 44 is installed in the main chassis 1. An adjusting motor 45 is installed on the top of the positioning frame 44. An adjusting screw 46 is installed on the output shaft of the adjusting motor 45. An adjusting slide plate 47 is slidably installed on the positioning frame 44. The adjusting screw 46 passes through the positioning frame 44 and is threadedly connected with the adjusting slide plate 47. A wear detector 43 is installed on the positioning frame 44. A first wire feeding assembly 41 is installed on the positioning frame 44. The second wire feeding assembly 42 is installed on the main chassis 1. A driving motor 48 is installed on the positioning frame 44. A driving screw 49 is installed on the output shaft of the driving motor 48. The driving screw 49 is provided with mutually symmetrical threads. The driving screw 49 is meshed with the first wire feeding assembly 41 for transmission, and the driving screw 49 is meshed with the second wire feeding assembly 42 for transmission.

[0046] The first wire feeding assembly 41 includes a first main shaft 411, a first belt 413 and a first secondary shaft 415. The first main shaft 411 is rotatably mounted on the adjusting slide 47. One end of the first main shaft 411 passes through the main chassis 1 and is mounted with a first main wheel 412. The other end of the first main shaft 411 is mounted with a first gear plate 416. A plurality of first transmission teeth 417 are mounted on the first gear plate 416. The first gear plate 416 is meshed with the driving screw 49 through the first transmission teeth 417. The first secondary shaft 415 is mounted on the adjusting slide 47. The first secondary shaft 415 is rotatably mounted with a first secondary wheel 414. The first main wheel 412 and the first secondary wheel 414 are connected through the first belt 413.

[0047] When the wire harness production device is working, the driving motor 48 drives the driving screw 49 to rotate, and the driving screw 49 drives the first gear plate 416 to rotate through the first transmission tooth 417. The first gear plate 416 drives the first main wheel 412 to rotate through the first main shaft 411. The first main wheel 412 drives the first secondary wheel 414 to rotate through the first belt 413. The second belt 423 rotates similarly. The first belt 413 and the second belt 423 cooperate with each other to drive the wire harness to move through rotation.

[0048] The second wire feeding assembly 42 includes a second main shaft 421, a second secondary shaft 425 and a second belt 423. The second main shaft 421 is rotatably mounted on the main chassis 1. A second gear plate 426 is mounted on one end of the second main shaft 421. A plurality of second transmission teeth 427 are mounted on the second gear plate 426. The second gear plate 426 is meshed with the driving screw 49 through the second transmission teeth 427 for transmission. A second main wheel 422 is mounted on the other end of the second main shaft 421. The second secondary shaft 425 is mounted on the main chassis 1. A second secondary wheel 424 is rotatably mounted on the second secondary shaft 425. The second secondary wheel 424 is connected to the second main wheel 422 through the second belt 423 for transmission.

[0049] The wear detector 43 includes a first electric telescopic rod 431, a detection shell 434 and a second electric telescopic rod 432. The first electric telescopic rod 431 is installed on the positioning frame 44. The output shaft of the first electric telescopic rod 431 passes through the positioning frame 44. The second electric telescopic rod 432 is installed in the main chassis 1. The output shafts of the first electric telescopic rod 431 and the second electric telescopic rod 432 are both installed with measuring roller assemblies 433. Detection terminals 436 are installed on the measuring roller assemblies 433. Differential springs 435 are installed between the detection terminals 436. The detection terminals 436 are slidably installed in the detection shell 434. The measuring roller assembly 433 is rotatably connected to the detection shell 434, and the detection shell 434 is installed on the positioning frame 44.

[0050] The measuring roller assembly 433 includes a connecting member 4333, which is respectively mounted on the output shafts of the first electric telescopic rod 431 and the second electric telescopic rod 432. A roller shaft 4332 is rotatably mounted on the connecting member 4333. A detection roller 4331 is mounted on one end of the roller shaft 4332, and a rope drum 4334 is mounted on the other end of the roller shaft 4332. The roller shaft 4332 is movably connected to the detection shell 434, a measuring rope 4335 is mounted on the rope drum 4334, and one end of the measuring rope 4335 is connected to a detection terminal 436.

[0051] The detection terminal 436 includes an end shell 4362, which is connected to the measuring rope 4335. A sliding ring 4361 is slidably installed in the end shell 4362, a contact ring 4365 is installed at the bottom of the sliding ring 4361, a detection spring 4363 is installed between the sliding ring 4361 and the end shell 4362, and a piezoelectric ceramic ring 4364 is installed in the end shell 4362.

[0052] The working principle of the present invention is as follows: before the wire harness production device works, the control system starts the adjusting motor 45, the adjusting motor 45 drives the adjusting screw 46 to rotate, the adjusting screw 46 drives the adjusting slide 47 to slide downward through the thread, the adjusting slide 47 drives the first wire feeding assembly 41 thereon to slide downward, the first wire feeding assembly 41 moves closer to the second wire feeding assembly 42, the first main wheel 412 and the first auxiliary wheel 414 cooperate with the second main wheel 422 and the second auxiliary wheel 424 to clamp the wire harness, at this time, the driving motor 48 is stationary, the driving screw 49 is stationary, and the first wire feeding assembly 41 and the second wire feeding assembly 42 do not rotate.

[0053] After the wire harness is clamped and fixed, the control system turns on the clamping cylinder 52, which drives the adjustment feedback devices 53 to move closer to each other, and the clamping sliders 534 on the upper and lower adjustment feedback devices 53 clamp and fix the wire harness. After that, the control system turns on the adjustment cylinder 54, which drives the entire guide adjustment assembly 5 to move horizontally. Since the wire harness is clamped and fixed by the clamping slider 534, the guide adjustment assembly 5 will pull the wire harness horizontally through the clamping slider 534 when it moves, and the wire harness will give the clamping slider 534 a reverse pulling force when pulling.

[0054] If the first wire feeding assembly 41 and the second wire feeding assembly 42 clamp the wire harness tightly, the wire harness will not slip between the first wire feeding assembly 41 and the second wire feeding assembly 42 under the action of tension. As the displacement of the guide adjustment assembly 5 increases, the tension on the wire harness increases, and the reverse tension on the clamping slider 534 also increases. When the reverse tension exceeds the critical value, the clamping slider 534 squeezes out the limit block 538 in the groove 5341 under the action of the reverse tension, and the clamping slider 534 produces a horizontal displacement relative to the adjustment bracket 531, and after displacing a certain distance, it engages with the limit block 538 again. When the limit block 538 is squeezed out of the groove 5341, it will produce an upward displacement, and the limit block 538 drives the connecting rod 5311, the end piece 536 and the contact 539 to move upward. When the contact 538 is completely out of the groove 5341, the contact 539 enters the feedback housing 5331 and squeezes the piezoelectric ceramic piece 5333 in the elastic diaphragm 5332. According to the piezoelectric principle, the piezoelectric ceramic piece 5333 will generate an electrical signal when it is compressed. The electrical signal is transmitted to the control system through a wire. After receiving the electrical signal, the control system turns on the third electric telescopic rod 532, and the output shaft of the third electric telescopic rod 532 drives the adjustment plate 5312 to move upward. The adjustment plate 5312 drives the limit block 538 on the connecting rod 5311 to move upward through the end plate 536. The limit block 538 moves upward and out of the groove 5341. After the clamping slider 534 loses the restriction of the limit block 538, it moves horizontally and resets under the elastic force of the reset spring 537. After that, the control system controls the guide adjustment component 5 to reset. If the first wire feeding assembly 41 and the second wire feeding assembly 42 loosen the clamping of the wire harness, the wire harness will slide between the first wire feeding assembly 41 and the second wire feeding assembly 42 under the action of tension, and the reverse tension on the pressing slider 534 is small, so that the limit block 538 cannot be squeezed out of the groove 5341, and the control system cannot receive the electrical signal. The control system judges the distance between the first wire feeding assembly 41 and the second wire feeding assembly 42 based on this, so as to realize the detection and adjustment of the distance between the wire feeding assemblies 4.

[0055] After the adjustment is completed, the control system starts the driving motor 48, and the driving motor 48 drives the first wire feeding assembly 41 and the second wire feeding assembly 42 to rotate by driving the screw 49, and the first belt 413 and the second belt 423 drive the wire harness to move, and the wire harness enters the straightening assembly 3 from the collection disk 2, and the straightening assembly 3 straightens the wire harness. Then the wire harness passes through the guide adjustment assembly 5 to reach the wire stripping assembly 6, and the wire stripping assembly 6 peels off the surface of the wire harness, and then cuts the wire harness. The wire feeding assembly 4 sends the stripped wire harness to the crimping device, and the crimping device installs the wire harness terminal on the stripped wire harness to complete the production and processing of the wire harness.

[0056] The control system regularly detects the wear of the first belt 413 and the second belt 423, and the control system moves the first wire feeding assembly 41 upward and resets, and then drives the first wire feeding assembly 41 and the second wire feeding assembly 42 to rotate through the driving motor 48, and the control system simultaneously turns on the first electric telescopic rod 431 and the second electric telescopic rod 432, and the first electric telescopic rod 431 and the second electric telescopic rod 432 each drive the measuring roller assembly 433 to extend the same distance, so that the two measuring rollers 4331 are respectively in contact with the first belt 413 and the second belt 423, and the first belt 413 and the second belt 42 The friction force drives the detection roller 4331 to rotate, and the detection roller 4331 drives the rope drum 4334 to rotate through the roller shaft 4332. The rotation of the rope drum 4334 drives the detection rope 4335 to wind. The detection rope 4335 pulls the detection terminal 436 to slide in the detection shell 434 while winding. The two detection terminals 436 slide toward the two ends of the detection shell 434 under the pull of the detection rope 4335. When the detection terminals 436 are driven to the ends of the detection shell 434, the sliding ring 4361 is squeezed with the ends of the detection shell 434. Under the action of pressure, the sliding ring 4361 overcomes the elastic force of the detection spring 4363 and moves relative to the ends. The shell 4362 is displaced, and the sliding ring 4361 drives the contact ring 4365 to squeeze the piezoelectric ceramic ring 4364. The piezoelectric ceramic ring 4364 generates an electrical signal after being compressed. When the wear of the first belt 413 and the second belt 423 is within the specified range, and the surface roughness of the first belt 413 and the second belt 423 is similar, the time interval of the electrical signals generated by the two detection terminals 436 is within the standard value range; when the wear degree of the first belt 413 and the second belt 423 is greatly different, the friction force generated by the belt with a larger wear degree and the detection roller 4331 is smaller, and the belt with a larger wear degree and the detection roller 4331 are closer. The friction force generated by the measuring roller 4331 is relatively large, and the detection terminal 436 on the side with relatively large friction force generates an electrical signal first. The time interval between the two electrical signals is greater than the standard value, and the electrical signal is abnormal. When the first belt 413 and the second belt 423 are worn out, the friction force between the belt and the detection roller 4331 is too small. Under the pulling force of the differential spring 435, the detection roller 4331 will slip with the belt, and the detection roller 4331 cannot drive the rope drum 4334 to pull the detection terminal 436 to the end of the detection shell 434. At this time, the control system can only receive one or no electrical signal, and the electrical signal is abnormal. When the electrical signal is abnormal, the control system sends an alarm to the staff, and the staff inspects and maintains the first belt 413 and the second belt 423, so as to achieve the purpose of detecting the wear degree of the first belt 413 and the second belt 423.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A new energy vehicle wiring harness production device with a straightening function, characterized in that: The wire harness production device comprises a main box (1), a wire collection disk (2) is rotatably mounted on the main box (1), a straightening assembly (3) is mounted on the main box (1), a wire feeding assembly (4) is mounted on the main box (1), a guide adjustment assembly (5) is mounted on the main box (1), a wire stripping assembly (6) is mounted on the main box (1), the guide adjustment assembly (5) and the wire stripping assembly (6) are located between the wire feeding assembly (4), and a crimping device is mounted on the main box (1); the guide adjustment assembly (5) comprises an adjustment cylinder (54), a guide shell (51) and a clamping assembly (52). The main body box (1) comprises a cylinder (52), the regulating cylinder (54) is installed in the main body box (1), the clamping cylinder (52) is slidably and symmetrically installed in the main body box (1), the guide shell (51) penetrates the main body box (1) and is connected to the output shaft of the regulating cylinder (54), the guide shell (51) is slidably connected to the main body box (1), an adjusting feedback device (53) is installed on the output shaft of the clamping cylinder (52), and the adjusting feedback device (53) is slidably connected to the guide shell (51); the guide shell (51) is provided with a guide hole (511), and the guide hole (511) is used to allow a wiring harness to pass through; The adjustment feedback device (53) comprises an adjustment bracket (531) and a sliding rod (535); the adjustment bracket (531) is slidably connected to the guide housing (51); the adjustment bracket (531) is connected to the output shaft of the clamping cylinder (52); a third electric telescopic rod (532) is mounted on the adjustment bracket (531); an adjustment plate (5312) is mounted on the output shaft of the third electric telescopic rod (532); a plurality of connecting rods (5311) are slidably mounted on the adjustment plate (5312); An end piece (536) is mounted on one end of the connecting rod (5311), a contact (539) is mounted on the top end of the end piece (536), a plurality of feedback terminals (533) are mounted on the adjustment bracket (531), the number and position of the feedback terminals (533) correspond to the number and position of the contacts (539), a limit block (538) is mounted on the other end of the connecting rod (5311), and an adjustment spring (5310) is mounted between the limit block (538) and the adjustment plate (5312); The slide bar (535) is mounted at the bottom end of the adjustment bracket (531); a clamping slider (534) is slidably mounted on the slide bar (535); the clamping slider (534) is slidably connected to the adjustment bracket (531); a plurality of grooves (5341) are provided on the clamping slider (534); the number and positions of the grooves (5341) correspond to the number and positions of the limit blocks (538); the limit blocks (538) are engaged with the grooves (5341); a return spring (537) is provided between the clamping slider (534) and the adjustment bracket (531); and the upper and lower clamping sliders (534) are used to clamp and fix the wire harness.

2. A new energy vehicle wiring harness production device with straightening function according to claim 1, characterized in that: The feedback terminal (533) comprises a feedback housing (5331), an elastic diaphragm (5332) is installed in the feedback housing (5331), piezoelectric ceramic sheets (5333) are installed between the elastic diaphragms (5332), and the number and position of the piezoelectric ceramic sheets (5333) correspond to the number and position of the contacts (539).

3. The new energy vehicle wiring harness production device with straightening function according to claim 1 is characterized in that: The wire feeding assembly (4) comprises a positioning frame (44) and a second wire feeding assembly (42), the positioning frame (44) being installed in the main housing (1), an adjusting motor (45) being installed at the top of the positioning frame (44), an adjusting screw rod (46) being installed on the output shaft of the adjusting motor (45), an adjusting slide plate (47) being slidably installed on the positioning frame (44), the adjusting screw rod (46) penetrating the positioning frame (44) and being threadedly connected to the adjusting slide plate (47), and a wear detection device being installed on the positioning frame (44). The device (43) is provided with a first wire feeding assembly (41) mounted on the positioning frame (44), the second wire feeding assembly (42) is mounted on the main chassis (1), a driving motor (48) is mounted on the positioning frame (44), a driving screw (49) is mounted on the output shaft of the driving motor (48), the driving screw (49) is provided with mutually symmetrical threads, the driving screw (49) is meshed with the first wire feeding assembly (41) for transmission, and the driving screw (49) is meshed with the second wire feeding assembly (42) for transmission.

4. A new energy vehicle wiring harness production device with straightening function according to claim 3, characterized in that: The first wire feeding assembly (41) comprises a first main shaft (411), a first belt (413) and a first secondary shaft (415); the first main shaft (411) is rotatably mounted on an adjusting slide plate (47); one end of the first main shaft (411) passes through a main housing (1) and is mounted with a first main wheel (412); the other end of the first main shaft (411) is mounted with a first toothed disc (416); a plurality of first transmission teeth (417) are mounted on the first toothed disc (416); the first toothed disc (416) is meshed with a driving screw (49) through the first transmission teeth (417); the first secondary shaft (415) is mounted on the adjusting slide plate (47); a first secondary wheel (414) is rotatably mounted on the first secondary shaft (415); the first main wheel (412) and the first secondary wheel (414) are connected to each other through a first belt (413).

5. The new energy vehicle wiring harness production device with straightening function according to claim 3 is characterized in that: The second wire feeding assembly (42) comprises a second main shaft (421), a second secondary shaft (425) and a second belt (423); the second main shaft (421) is rotatably mounted on the main housing (1); a second toothed disc (426) is mounted on one end of the second main shaft (421); a plurality of second transmission teeth (427) are mounted on the second toothed disc (426); the second toothed disc (426) is meshed with a driving screw (49) via the second transmission teeth (427); a second main wheel (422) is mounted on the other end of the second main shaft (421); the second secondary shaft (425) is mounted on the main housing (1); a second secondary wheel (424) is rotatably mounted on the second secondary shaft (425); the second secondary wheel (424) is connected to the second main wheel (422) via a second belt (423).

6. The new energy vehicle wiring harness production device with straightening function according to claim 3 is characterized in that: The wear detector (43) comprises a first electric telescopic rod (431), a detection shell (434) and a second electric telescopic rod (432); the first electric telescopic rod (431) is mounted on a positioning frame (44); an output shaft of the first electric telescopic rod (431) passes through the positioning frame (44); the second electric telescopic rod (432) is mounted in a main frame (1); measuring roller assemblies (433) are mounted on the output shafts of the first electric telescopic rod (431) and the second electric telescopic rod (432); detecting terminals (436) are mounted on the measuring roller assemblies (433); a differential spring (435) is mounted between the detecting terminals (436); the detecting terminals (436) are slidably mounted in the detection shell (434); the measuring roller assembly (433) is rotatably connected to the detection shell (434); and the detection shell (434) is mounted on the positioning frame (44).

7. A new energy vehicle wiring harness production device with straightening function according to claim 6, characterized in that: The measuring roller assembly (433) comprises a connecting member (4333), wherein the connecting member (4333) is respectively mounted on the output shafts of the first electric telescopic rod (431) and the second electric telescopic rod (432), a roller shaft (4332) is rotatably mounted on the connecting member (4333), a detection roller (4331) is mounted on one end of the roller shaft (4332), a rope drum (4334) is mounted on the other end of the roller shaft (4332), the roller shaft (4332) is movably connected to the detection shell (434), a measuring rope (4335) is mounted on the rope drum (4334), and one end of the measuring rope (4335) is connected to the detection terminal (436).

8. The new energy vehicle wiring harness production device with straightening function according to claim 7 is characterized in that: The detection terminal (436) includes an end shell (4362), the end shell (4362) is connected to the measuring rope (4335), a sliding ring (4361) is slidably installed in the end shell (4362), a contact ring (4365) is installed at the bottom end of the sliding ring (4361), a detection spring (4363) is installed between the sliding ring (4361) and the end shell (4362), and a piezoelectric ceramic ring (4364) is installed in the end shell (4362).

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