CN115083694B

CN115083694B - A hank system device for car wiring harness production

Info

Publication number: CN115083694B
Application number: CN202211002642.6A
Authority: CN
Inventors: 窦月涛
Original assignee: Xuzhou Huaxia Electronics Co ltd
Current assignee: Xuzhou Huaxia Electronics Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-11-11
Anticipated expiration: 2042-08-22
Also published as: CN115083694A

Abstract

The invention relates to the field of wire harness production equipment, and discloses a stranding device for automobile wire harness production, which comprises a base, wherein two support plates are arranged at the top of the base, a plurality of wire harness rollers are arranged between the two support plates and fixedly connected through a universal driving shaft, the wire harness rollers are integrally driven to rotate by a speed reducing motor arranged at the top of the base, a cable disc is respectively arranged in each wire harness roller, a vertical plate positioned on one side of a positioning rotating cylinder is arranged at the top of the base, a wire harness device is fixedly arranged on each vertical plate, and one end of a cable on each cable disc penetrates through the wire harness device. Through the wire harness roller structure formed by the two circular discs, the arrangement disc and the plurality of positioning connecting shafts, the wire harness roller is convenient to put into the cable disc from one side, the working efficiency is improved, the cable disc does not rotate along with the wire harness roller, and compared with a stranding device produced by the conventional wire harness, the wire harness roller structure ensures that the cable is normally stranded, and the driving energy consumption is reduced.

Description

A hank system device for car wiring harness production

Technical Field

The invention relates to the field of wire harness production equipment, in particular to a stranding device for automobile wire harness production.

Background

An automobile wire harness is a network main body of an automobile circuit, and the wire harness refers to a module which is formed by pressing a contact terminal (connector) punched by a copper material and an electric wire and cable, then externally molding and pressing an insulator or adding a metal shell, and the like, and bundling the wire harness to form a connecting circuit.

However, when the existing stranding machine is used for stranding the production wire harness, the cable discs are inconvenient to mount and place, the working efficiency is influenced, the plurality of cable discs can rotate when being stranded, the cables are wound on the cable discs at the initial stage, the quality is large, the integral energy consumption of driving is high, and therefore the stranding device for producing the automobile wire harness is provided.

Disclosure of Invention

The invention provides a stranding device for automobile wire harness production, which has the advantages of convenience in placement of a cable tray and low driving energy consumption, and solves the technical problems in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme to realize: the utility model provides a stranding device for production of car wiring harness, includes the frame, and the top of frame is equipped with two extension boards, is equipped with a plurality of pencil cylinders between two extension boards, and through universal driving shaft fixed connection between the pencil cylinder, the pencil cylinder is whole rotatory by the gear motor drive of locating the frame top, is equipped with a cable dish in every pencil cylinder respectively, and the top of frame is equipped with the riser that is located location rotary drum one side, and fixed mounting has the pencil device on the riser, and the one end of cable runs through the pencil device on the cable dish, the pencil cylinder includes two discs, and a plurality of location that are located its outer edge of fixedly connected with link between two discs, and the equal bearing cover in opposite side of two discs is equipped with the arrangement dish, and the standing groove has been seted up respectively to the opposite side of two arrangement dishes, and cable dish movable mounting is in the standing groove, and is equipped with between two arrangement dishes and carries out spacing pipe fitting on one side of cable dish.

Optionally, a positioning rotating shaft and a positioning rotating drum are movably sleeved on the two support plates at the top of the machine base respectively, the positioning rotating shaft is fixedly connected with the wire harness roller on one side, the positioning rotating drum is fixedly connected with the wire harness roller on the other side, and one end of a cable on each cable reel penetrates through the positioning rotating drum.

Optionally, the limiting pipe fitting is composed of a limiting pipe and a limiting shaft, the limiting pipe is in threaded sleeve connection with the limiting shaft, and two ends of the limiting pipe fitting are clamped with the two discs respectively.

Optionally, a positioning block is fixedly sleeved in the middle of the positioning connecting shaft, a wire guiding wheel is arranged on one side, facing the cable disc, of the positioning block, and a cable on the cable disc passes around the wire guiding wheel.

Optionally, the outer diameter value of the cable reel is smaller than the distance value between two adjacent positioning connecting shafts.

Optionally, the wire harness device comprises a positioning pipe fixed on the vertical plate, a rotary sleeve is sleeved on one side of the positioning pipe, facing the positioning rotary drum, a rubber sleeve is fixedly sleeved inside the rotary sleeve, and the rubber sleeve is movably connected with the cable.

Optionally, the other side fixedly connected with side cap of registration arm, and the side cap can be dismantled, the movable sleeve is equipped with the piston plate in the registration arm, the piston plate just cup joints with the outside activity of hank system cable, be equipped with the first spring of activity suit in the hank system cable outside between piston plate and the side cap, and first spring is in the pressurized state, the opposite side of piston plate and side cap is fixedly connected with first electric contact and second electric contact respectively, and the opposite side of first electric contact and second electric contact contacts after first spring compression.

Optionally, a second bevel gear and a first bevel gear are fixedly sleeved on the positioning rotating shaft, an intermediate bevel gear is movably sleeved on the support plate, the tooth surface of the intermediate bevel gear is meshed with the tooth surface of the first bevel gear, a limiting pipe is fixedly installed on one side, away from the intermediate bevel gear, of the support plate, a transmission shaft is movably sleeved on one side of an output shaft of the speed reducing motor, the transmission shaft can horizontally move relative to the output shaft of the speed reducing motor and rotate along with the output shaft of the speed reducing motor, a driving bevel gear is fixedly sleeved on the transmission shaft, the tooth surfaces on two sides of the driving bevel gear can be respectively meshed with the outer edges of the intermediate bevel gear and the second bevel gear through horizontal movement, a magnetic plate located in the limiting pipe is fixedly connected to one end, away from the output shaft, of the transmission shaft, an electromagnet is fixedly installed on the inner side wall of the limiting pipe, when the electromagnet is powered on, the electromagnet is mutually exclusive to the magnetic plate, an end face bearing is fixedly connected to one side, away from the electromagnet, and a second spring movably sleeved on the transmission shaft is arranged between the end face bearing and the side wall of the support plate.

Optionally, the electromagnet, the strong power supply, the switch and the electromagnetic relay form a circuit, the electromagnetic relay is in a power-off normally-open state, the electromagnetic relay, the first electric contact, the second electric contact and the weak power supply form another circuit, and when the first electric contact and the second electric contact are in contact, the electromagnetic relay is changed from the power-off normally-open state to a power-on normally-closed state.

Optionally, a rotary shifting piece is arranged on a disc of the wire harness roller, a torsion spring is arranged between the rotary shifting piece and the disc, a limiting block located at the first position of the rotary shifting piece is further arranged on the disc, the limiting block limits the rotary shifting piece to enable the rotary shifting piece to rotate towards the same direction, a whole circle of toothed blocks are arranged on the outer edge of the disc side face placement plate, and the top of the side face of the toothed block is movably connected with the bottom of the side face of the rotary shifting piece.

The invention provides a stranding device for automobile wire harness production, which has the following beneficial effects:

1. this a stranding device for car wiring harness production through two discs, arrangement dish and a plurality of location even pencil cylinder structure that the axle constitutes, has made things convenient for the cable dish to put into the pencil cylinder from one side, has improved work efficiency, and the cable dish does not rotate along with the pencil cylinder, compares in the stranding device of current pencil production, under the normal condition of stranding of guarantee cable, has still reduced the drive energy consumption.

2. This a stranding device for car wiring harness production, through the structural design of pencil device linkage drive pencil cylinder, it is excessive to appear convoluteing when the cable of stranding, leads to the diameter increase, when influencing the condition of whole quality, the automatic reverse rotation of pencil cylinder removes excessive cable and convolutes to can the initial normal condition of automatic recovery, thereby it is qualified to have ensured the quality of cable stranding.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the cutting structure of the wiring harness roller shown in FIG. 1 according to the present invention;

FIG. 3 is a side view of the park disc of FIG. 2 of the present invention;

FIG. 4 is a schematic view of the wire harness apparatus of FIG. 1 according to the present invention;

FIG. 5 is a cut-away schematic view of the confinement tube structure of FIG. 1 in accordance with the invention;

fig. 6 is a circuit connection block diagram of the electromagnet of the present invention.

In the figure: 1. a machine base; 2. a support plate; 3. a reduction motor; 4. a disc; 5. a linkage shaft; 6. positioning the rotating shaft; 7. positioning the rotating drum; 8. a setting tray; 9. a cable reel; 10. limiting the pipe fitting; 11. a vertical plate; 12. positioning the connecting shaft; 13. positioning a block; 14. a first bevel gear; 15. a middle bevel gear; 16. a drive shaft; 17. a drive bevel gear; 18. a second bevel gear; 19. a positioning tube; 20. a rotating sleeve; 21. a rubber sleeve; 22. a side cover; 23. a piston plate; 24. a first spring; 25. a first electrical contact; 26. a second electrical contact; 27. defining a tube; 28. an electromagnet; 29. a magnetic plate; 30. an end face bearing; 31. a second spring; 32. a placement groove; 33. rotating the shifting sheet; 34. a limiting block; 35. and (7) a tooth block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a stranding device for automobile wire harness production comprises a base 1, two support plates 2 are arranged at the top of the base 1, a plurality of wire harness rollers are arranged between the two support plates 2 and fixedly connected through a linkage shaft 5, a positioning rotating shaft 6 is fixedly connected to the side surface of one edge wire harness roller, a positioning rotating drum 7 is fixedly connected to the side surface of the other edge wire harness roller, the positioning rotating shaft 6 and the positioning rotating drum 7 are movably sleeved with the two support plates 2 respectively, a cable disc 9 is arranged in each wire harness roller, the cable disc 9 is placed into one side of the wire harness roller and clamped and fixed, one end of a cable on each cable disc 9 penetrates through the positioning rotating drum 7, a vertical plate 11 located on one side of the positioning rotating drum 7 is arranged at the top of the base 1, a wire harness device is fixedly mounted on the vertical plate 11, one end of each cable penetrates through the wire harness device and is finally wound through a winding disc, and the wire harness rollers, the linkage shaft 5, the positioning rotating shaft 6 and the positioning rotating drum 7 are driven to rotate through a reduction motor 3 located on one side of the positioning rotating drum 2, so that each section of the wire harness rollers 19 is stranded cable is made to be together.

Referring to fig. 2-3, the wire harness roller includes two disks 4, a plurality of positioning connecting shafts 12 located at the outer edges of the two disks 4 are fixedly connected between the two disks 4, the plurality of positioning connecting shafts 12 are circumferentially arrayed on the disks 4, the placing disks 8 are respectively sleeved on the opposite sides of the two disks 4 in a bearing manner, the placing grooves 32 are respectively formed in the two opposite sides of the two placing disks 8, the wire harness disks 9 are sleeved in the placing grooves 32 from one side, and the limiting pipe 10 for fixing one side of the wire harness disk 9 is arranged between the two placing disks 8, so that the wire harness disks 9 are conveniently integrally placed in the wire harness roller, the working efficiency is improved, and the positioning rotating shaft 6 is driven by the reducing motor 3 to drive the disks 4 of the wire harness rollers to rotate relative to the wire harness disks 9 through the bearing sleeve design of the placing disks 8 and the disks 4, the wire harness roller 9 is not required to be driven to rotate integrally, and the driving energy consumption is reduced.

The limiting pipe 10 is composed of a limiting pipe and a limiting shaft, the limiting pipe and the limiting shaft are in threaded sleeve joint, two ends of the limiting pipe 10 are respectively connected with the two discs 4 in a clamped mode, so that after the cable drum 9 is placed, the limiting pipe 10 limits the cable drum 9, and the cable drum 9 is prevented from moving out from one side of the placing groove 32.

The positioning block 13 is fixedly sleeved in the middle of the positioning connecting shaft 12, a wire guide wheel is arranged on one side, facing the cable disc 9, of the positioning block 13, cables on the cable disc 9 bypass the wire guide wheel, the positioning block 13 is used for conducting wires, when the positioning block 13 rotates along with the disc 4 relative to the cable disc 9, the cables on the cable disc 9 smoothly collect and twist through the positioning rotary drum 7, the positioning connecting shaft 12 is connected with the two discs 4 and is matched with the linkage shaft 5 to connect the two wire harness rotary drums, so that the positioning rotary shaft 6 is driven to rotate on one side, all the wire harness rotary drums can rotate simultaneously, and the wire harness rotary drum is convenient to use, the distance value between every two adjacent positioning connecting shafts 12 is larger than the outer diameter value of the cable disc 9, and the cable disc 9 can be placed into the wire harness rotary drums from the position between the two positioning connecting shafts 12.

Referring to fig. 4, the wire harness device includes a positioning tube 19 fixed on the vertical plate 11, a rotary sleeve 20 is sleeved on one side of the positioning tube 19 facing the positioning drum 7, a rubber sleeve 21 is fixedly sleeved inside the rotary sleeve 20, the rubber sleeve 21 is movably connected with the cable, the twisted cable penetrates through the positioning tube 19, and when the cable is twisted with the wire harness drum, the rubber sleeve 21 is driven to rotate, so as to reduce the frictional resistance of the cable at the position and reduce the wear consumption of the cable.

The other side of the positioning tube 19 is fixedly connected with a side cover 22, the side cover 22 is detachable, a piston plate 23 is movably sleeved in the positioning tube 19, the piston plate 23 is just movably sleeved on the outer side of the stranded cable, a first spring 24 movably sleeved outside the stranded cable is arranged between the piston plate 23 and the side cover 22, the first spring 24 is in a pressed state, the opposite sides of the piston plate 23 and the side cover 22 are respectively and fixedly connected with a first electric contact piece 25 and a second electric contact piece 26, the opposite sides of the first electric contact piece 25 and the second electric contact piece 26 are in contact after being compressed by the first spring 24, when the cable is stranded, due to reasons such as shaking, when the diameter of a cable gathering part is increased due to deviation of cable gathering, the piston plate 23 is driven to overcome the elastic force of the first spring 24 during wire gathering, the first electric contact piece 25 is in contact with the second electric contact piece 26, so as to control the driving of the speed reducing motor 3, and enable the wire harness roller to reversely wind the cable which is untwisted together.

Specifically, a second bevel gear 18 and a first bevel gear 14 are fixedly sleeved on the positioning rotating shaft 6, an intermediate bevel gear 15 is movably sleeved on the support plate 2, a tooth surface of the intermediate bevel gear 15 is meshed with a tooth surface of the first bevel gear 14, a limiting tube 27 is fixedly mounted on one side of the support plate 2 away from the intermediate bevel gear 15, a transmission shaft 16 is movably sleeved on one side of an output shaft of the reducing motor 3, the transmission shaft 16 can horizontally move relative to the output shaft of the reducing motor 3, the transmission shaft 16 rotates along with the output shaft of the reducing motor 3, a driving bevel gear 17 is fixedly sleeved on the transmission shaft 16, tooth surfaces on two sides of the driving bevel gear 17 can be respectively meshed with the outer edges of the intermediate bevel gear 15 and the second bevel gear 18 through horizontal movement, referring to fig. 5, one end of the transmission shaft 16 away from the output shaft is fixedly connected with a magnetic plate 29 located in the limiting tube 27, an electromagnet 28 is fixedly mounted on an inner side wall of the limiting tube 27, when the electromagnet 28 is energized, the electromagnet 28 is mutually repulsed from the magnetic plate 29, one side of the electromagnet 28 is fixedly connected with an end face bearing 30, and a second spring 31 on the end face bearing 30 is arranged between the end face bearing 30 and a side wall of the support plate 2, the side wall of the transmission shaft 16, the transmission shaft, the intermediate bevel gear 16, the transmission shaft drives the driving bevel gear 15 to rotate, the intermediate bevel gear 15, the driving bevel gear 14, and the driving bevel gear 17, and the driving bevel gear 14 are driven by the rotating shaft, and the driving bevel gear 17, and the driving bevel gear 14.

Referring to fig. 6, the electromagnet 28 forms a circuit with the strong power supply, the switch and the electromagnetic relay, the electromagnetic relay is in the power-off and normally-open state, the electromagnetic relay forms another circuit with the first electric contact 25, the second electric contact 26 and the weak power supply, when the first contact 25 and the second contact 26 are contacted, the electromagnetic relay is in a state of normally open when power is off and is in a state of normally closed when power is on, at this time, the electromagnet 28 is powered on, thereby generating a magnetic repulsive force to the magnetic plate 29, so that the magnetic plate 29 drives the transmission shaft 16 to move left, the drive bevel gear 17 is separated from the intermediate bevel gear 15 and is engaged with the second bevel gear 18, at this time, the drive bevel gear 17 directly drives the second bevel gear 18 to rotate, the second bevel gear 18 is reversely rotated, so that the whole wire harness roller is driven to reversely rotate, further, the twisted wire is released from twisting, and after the state that the wire is wound together is released, the wire smoothly passes through the piston plate 23, and at this time, under the elastic force of the first spring 24, so that the piston plate 23 moves to the left, the first electric contact 25 is separated from the second electric contact 26, the electromagnetic relay is changed from the normally closed state to the normally open state, after the electromagnet 28 is powered off, when the magnetic repulsion force on the magnetic plate 29 disappears, the transmission shaft 16 drives the driving bevel gear 17 to move rightwards to reset under the action of the elastic force of the second spring 31, the driving bevel gear 17 is meshed with the middle bevel gear 15 again to restore the initial rotating state, the cable is twisted continuously, the quality of the cable twisting can be ensured to be qualified without arranging a detection cable twisting device, the existing twisting device is effectively prevented from using, because the stranding device makes the wire appear rocking easily when rotating, appears the cable and coils the number of turns too much in a department when leading to the stranding, leads to the whole diameter of cable not of uniform size, influences the problem of cable stranding quality.

In addition, referring to fig. 3-5, a disc 4 of the harness roller is provided with a rotary dial 33, a torsion spring is provided between the rotary dial 33 and the disc, the disc 4 is further provided with a limit block 34 located at the rotary dial 33, the limit block 34 limits the rotary dial 33 so that the rotary dial 33 can only rotate in the same direction, the outer edge of the placement plate 8 on the side of the disc 4 is provided with a full circle of teeth 35, the top of the side of the teeth 35 is movably connected with the bottom of the side of the rotary dial 33, when the harness roller normally rotates, the teeth 35 contact the rotary dial 33 to rotate the rotary dial 33, at this time, the rotary dial 33 does not affect the normal rotation of the teeth 35, that is, when the cable is twisted, the rotation of the harness roller is not affected by the cable plate 9 between the two placement plates 8, when the harness roller reversely rotates, and the over-winding of the twisted cable is released, the disc 4 drives the placement plate 8 to rotate together with the placement plate 9 due to the limit function of the limit block 34, so as to ensure the cable is always stretched, and the cable can be always stretched.

When the stranding device for producing the automobile wire harness is used, firstly, each cable disc 9 is respectively placed on each wire harness roller through the groove 32 and is limited and fixed through the limiting pipe fitting 10 in sequence, then one end of the cable on the cable reel 9 is respectively wound around the wire guiding wheel and penetrates through the positioning rotary drum 7 and the wire harness device, then the speed reducing motor 3 is started to drive the wire harness roller to rotate, so that the cable is twisted in front of the wire harness device, when the cable is excessively wound to cause unqualified diameter increase, the excessively twisted cable cannot pass through the piston plate 23 in the wiring harness device, so that the piston plate 23 moves to the right until the first electric contact piece 25 contacts with the second electric contact piece 26, the electromagnetic relay is in a power-off normally open state and is in a power-on normally closed state, the electromagnet 28 is electrified to generate a magnetic repulsion force to the magnetic plate 29, so that the transmission shaft 16 moves to the left, the drive bevel gear 17 is separated from the intermediate bevel gear 15 and is meshed with the second bevel gear 18, at this time, the drive bevel gear 17 directly drives the second bevel gear 18 to rotate, the second bevel gear 18 rotates reversely, thereby driving the whole wire harness roller to rotate reversely, further, the twisted wire is released from twisting, and after the state that the wire is wound together is released, the wire smoothly passes through the piston plate 23, and at this time, under the elastic force of the first spring 24, so that the piston plate 23 moves to the left, the first electric contact 25 is separated from the second electric contact 26, the electromagnetic relay is changed from the normally closed state to the normally open state, after the electromagnet 28 is powered off, and the magnetic repulsion force on the magnetic plate 29 disappears, the transmission shaft 16 drives the driving bevel gear 17 to move rightwards to reset under the action of the elastic force of the second spring 31, the driving bevel gear 17 is meshed with the middle bevel gear 15 again, the initial rotating state is recovered, and the cable is continuously stranded.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stranding device for car wiring harness production, including frame (1), the top of frame (1) is equipped with two extension boards (2), be equipped with a plurality of pencil cylinders between two extension boards (2), and through universal driving shaft (5) fixed connection between the pencil cylinder, the pencil cylinder is whole rotatory by gear motor (3) drive of locating frame (1) top, be equipped with one cable dish (9) in every pencil cylinder respectively, riser (11) of one side of the top of frame (1), fixed mounting has the pencil device on riser (11), the one end of cable runs through the pencil device on cable dish (9), its characterized in that: the wire harness roller comprises two disks (4), a plurality of positioning connecting shafts (12) located at the outer edges of the two disks (4) are fixedly connected between the two disks (4), placing disks (8) are respectively sleeved on the opposite sides of the two disks (4) in a bearing mode, placing grooves (32) are respectively formed in the opposite sides of the two placing disks (8), the cable disks (9) are inserted into the placing grooves (32) from one sides of the placing grooves, and a limiting pipe fitting (10) for laterally limiting one side of each cable disk (9) is arranged between the two placing disks (8);

two support plates (2) at the top of the machine base (1) are respectively movably sleeved with a positioning rotating shaft (6) and a positioning rotary drum (7), the positioning rotating shaft (6) is fixedly connected with a wire harness roller at one side, the positioning rotary drum (7) is fixedly connected with a wire harness roller at the other side, and one end of a cable on each cable disc (9) penetrates through the positioning rotary drum (7);

the wire harness device comprises a positioning pipe (19) fixed on a vertical plate (11), a rotary sleeve (20) is sleeved on one side, facing a positioning rotary drum (7), of the positioning pipe (19) in a bearing mode, a rubber sleeve (21) is fixedly sleeved inside the rotary sleeve (20), and the rubber sleeve (21) is movably connected with a cable;

the other side of the positioning tube (19) is fixedly connected with a side cover (22), the side cover (22) is detachable, a piston plate (23) is movably sleeved in the positioning tube (19), the piston plate (23) is just movably sleeved on the outer side of the stranded cable, a first spring (24) movably sleeved outside the stranded cable is arranged between the piston plate (23) and the side cover (22), the first spring (24) is in a pressed state, the opposite sides of the piston plate (23) and the side cover (22) are respectively and fixedly connected with a first electric contact piece (25) and a second electric contact piece (26), and the opposite sides of the first electric contact piece (25) and the second electric contact piece (26) are in contact after the first spring (24) is compressed;

the positioning rotating shaft (6) is fixedly sleeved with a second bevel gear (18) and a first bevel gear (14), a support plate (2) is movably sleeved with a middle bevel gear (15), the tooth surface of the middle bevel gear (15) is meshed with the tooth surface of the first bevel gear (14), one side of the support plate (2) far away from the middle bevel gear (15) is fixedly provided with a limiting pipe (27), one side of an output shaft of a speed reducing motor (3) is movably sleeved with a transmission shaft (16), the transmission shaft (16) can horizontally move relative to the output shaft of the speed reducing motor (3), the transmission shaft (16) rotates along with the output shaft of the speed reducing motor (3), the transmission shaft (16) is fixedly sleeved with a driving bevel gear (17), the tooth surfaces on two sides of the driving bevel gear (17) can be horizontally moved to be respectively meshed with the outer edges of the middle bevel gear (15) and the second bevel gear (18), one end, far away from the output shaft, of the transmission shaft (16) is fixedly connected with a magnetic plate (29) positioned in the limiting pipe (27), the inner side wall of the limiting pipe (27) is fixedly provided with an electromagnet (28), and when the electromagnet (28) is electrified, one side wall of the electromagnet bearing (30) far away from the magnetic pole bearing (29) is connected with an electromagnet bearing (30), and a movable bearing (30) is arranged between the electromagnet bearing (30) and the electromagnet (30) and the end surface of the electromagnet (30) of the support plate (2) far away from the electromagnet bearing (30), the electromagnet bearing (30) and the end surface of the movable bearing (30) and the electromagnet bearing (2) and the end surface of the support plate (30) far away from the movable bearing (30) of the electromagnet bearing (30) and the support plate (2) is connected with the electromagnet bearing (16) A second spring (31) on the drive shaft (16);

the electromagnet (28) and the strong power supply, the switch and the electromagnetic relay form a circuit, the electromagnetic relay is in a power-off normally-open state, the electromagnetic relay, the first electric contact piece (25), the second electric contact piece (26) and the weak power supply form another circuit, and when the first electric contact piece (25) and the second electric contact piece (26) are in contact, the electromagnetic relay is changed from the power-off normally-open state to the power-on normally-closed state.

2. The stranding device for automotive wiring harness production according to claim 1, characterized in that: the limiting pipe fitting (10) is composed of a limiting pipe and a limiting shaft, the limiting pipe is in threaded sleeve connection with the limiting shaft, and two ends of the limiting pipe fitting (10) are connected with the two discs (4) in a clamped mode respectively.

3. The stranding device for automotive wiring harness production according to claim 1, characterized in that: the middle part of the positioning connecting shaft (12) is fixedly sleeved with a positioning block (13), one side of the positioning block (13) facing the cable tray (9) is provided with a wire guiding wheel, and a cable on the cable tray (9) bypasses the wire guiding wheel.

4. The stranding device for automotive wire harness production according to claim 1, characterized in that: the outer diameter value of the cable reel (9) is smaller than the distance value between two adjacent positioning connecting shafts (12).

5. The stranding device for automotive wiring harness production according to claim 1, characterized in that: be equipped with rotatory plectrum (33) on a disc (4) of pencil cylinder, be equipped with the torsional spring between rotatory plectrum (33) and the disc, and still be equipped with a stopper (34) that are located rotatory plectrum (33) department on this disc (4), stopper (34) are spacing to rotatory plectrum (33) make rotatory plectrum (33) can only rotate by same direction, and the outer edge of this disc (4) side arrangement dish (8) is equipped with a whole circle of dog (35), and the bottom swing joint of the top of dog (35) side and rotatory plectrum (33) side.