CN115083694A

CN115083694A - A hank system device for car wiring harness production

Info

Publication number: CN115083694A
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: 2022-09-20
Anticipated expiration: 2042-08-22
Also published as: CN115083694B

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 twists the production wiring harness, the cable disc is inconvenient to install and place, the working efficiency is influenced, a plurality of cable discs can rotate when being twisted, the cable is wound on the cable disc 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 wiring 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: a stranding device for automobile wire harness production comprises a machine base, two support plates are arranged at the top of the machine base, a plurality of wire harness rollers are arranged between the two support plates, the wire harness drums are fixedly connected through the linkage shaft, the whole wire harness drum is driven to rotate by a speed reducing motor arranged at the top of the machine base, a cable drum is respectively arranged in each wire harness drum, a vertical plate positioned at one side of the positioning drum is arranged at the top of the machine base, a wire harness device is fixedly arranged on each vertical plate, one end of a cable on each cable drum penetrates through each wire harness device, the wire harness roller comprises two disks, a plurality of positioning connecting shafts positioned at the outer edges of the two disks are fixedly connected between the two disks, the opposite sides of the two disks are sleeved with a mounting disk in a bearing way, and the opposite sides of the two placing discs are respectively provided with a placing groove, the cable discs are movably arranged in the placing grooves, and a limiting pipe fitting for limiting one side of each cable disc is arranged between the two placing discs.

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 and the limiting shaft are in threaded sleeve joint, and two ends of the limiting pipe fitting are connected with the two discs in a clamped mode respectively.

Optionally, a positioning block is fixedly sleeved in the middle of the positioning connecting shaft, a wire guide wheel is arranged on one side of the positioning block, which faces the cable tray, and a cable on the cable tray bypasses the wire guide 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 engaged with the tooth surface of the first bevel gear, a limiting pipe is fixedly mounted on one side of the support plate away from the intermediate bevel gear, a transmission shaft is movably sleeved on one side of the output shaft of the gear motor, the transmission shaft can horizontally move relative to the output shaft of the gear motor and rotates along with the output shaft of the gear motor, a drive bevel gear is fixedly sleeved on the transmission shaft, the tooth surfaces on two sides of the drive bevel gear can respectively engage with the outer edges of the intermediate bevel gear and the second bevel gear through horizontal movement, one end of the transmission shaft away from the output shaft is fixedly connected with a magnetic plate located in the limiting pipe, an electromagnet is fixedly mounted on the inner side wall of the limiting pipe, and when the electromagnet is electrified, the electromagnet and the magnetic plate repel each other, and one side of the magnetic plate, which is far away from the electromagnet, is fixedly connected with an end face bearing, 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 schematic cross-sectional 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 blocks; 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. 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 machine base 1, two support plates 2 are arranged at the top of the machine 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 respectively movably sleeved with the two support plates 2, a cable disc 9 is respectively arranged in each wire harness roller, the cable discs 9 are placed into and clamped and fixed from one side of the wire harness rollers, 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 machine 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, the wire harness roller, the linkage shaft 5, the positioning rotating shaft 6 and the positioning rotating drum 7 are driven to rotate by the speed reducing motor 3 arranged on one side of the support plate 2, so that all sections of cables penetrating through the positioning pipe 19 are stranded 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 locating block 13 is fixedly sleeved in the middle of the locating connecting shaft 12, a wire guide wheel is arranged on one side, facing the cable disc 9, of the locating block 13, cables on the cable disc 9 bypass the wire guide wheel, the locating block 13 is used for conducting wires, when the locating block 13 rotates along with the cable disc 9 relative to the disc 4, the cables on the cable disc 9 smoothly collect and twist through the locating rotary drum 7, the locating connecting shaft 12 is connected with the two discs 4 and is matched with the linkage shaft 5 to be connected with the two wire harness rotary drums, so that the locating rotary shaft 6 is driven to rotate on one side, the wire harness rotary drums can rotate simultaneously, the use is facilitated, the distance value between the two adjacent locating 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 space between the two locating 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 the rubber sleeve 21 is driven to rotate when the cable is twisted along with the rotation of the wire harness roller, so that the frictional resistance of the cable at the position is reduced, and the abrasion consumption of the cable is reduced.

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 contacted 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 the cable gathering, the piston plate 23 is driven to overcome the elastic force of the first spring 24 during the wire gathering, so that the first electric contact piece 25 is contacted with the second electric contact piece 26, thereby controlling the driving of the speed reducing motor 3, causing the harness drum to reverse unwinding the wound-together cables.

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 engaged with a tooth surface of the first bevel gear 14, a limiting pipe 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 gear motor 3, the transmission shaft 16 can horizontally move relative to the output shaft of the gear motor 3, the transmission shaft 16 rotates along with the output shaft of the gear motor 3, a drive bevel gear 17 is fixedly sleeved on the transmission shaft 16, tooth surfaces on two sides of the drive bevel gear 17 can respectively engage with outer edges of the intermediate bevel gear 15 and the second bevel gear 18 through horizontal movement, please refer to fig. 5, one end of the transmission shaft 16 away from the output shaft is fixedly connected with a magnetic plate 29 positioned in the limiting pipe 27, and an electromagnet 28 is fixedly mounted on an inner side wall of the limiting pipe 27, when the electromagnet 28 is powered on, the electromagnet 28 and the magnetic plate 29 repel each other, one side of the magnetic plate 29, which is away from the electromagnet 28, is fixedly connected with an end face bearing 30, a second spring 31 movably sleeved on the transmission shaft 16 is arranged between the end face bearing 30 and the side wall of the support plate 2, in a normal state, under the action of the elastic force of the second spring 31, the driving bevel gear 17 on the transmission shaft 16 is meshed with the intermediate bevel gear 15, and at the moment, the output shaft of the speed reduction motor 3 drives the driving bevel gear 17 to drive the intermediate bevel gear 15 and the first bevel gear 14 to rotate, so as to drive the wiring harness roller to integrally rotate.

Referring to fig. 6, the electromagnet 28, the strong power source, 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 25, the second electric contact 26 and the weak power source form another circuit, when the first electric contact 25 and the second electric contact 26 are in contact, the electromagnetic relay is in a power-on normally-closed state when the power-off normally-open state is changed to a power-on normally-closed state, at this time, the electromagnet 28 is energized to generate a magnetic repulsion force on the magnetic plate 29, so that the magnetic plate 29 drives the transmission shaft 16 to move to the left, the active bevel gear 17 is separated from the intermediate bevel gear 15 and engaged with the second bevel gear 18, at this time, the active bevel gear 17 directly drives the second bevel gear 18 to rotate in the reverse direction, so that the wire harness roller is driven to rotate in the reverse direction integrally, so that the stranded cable is released, and the cable smoothly passes through the piston plate 23 after the state that the stranded cable is wound together is released, at this time, under the elastic force of the first spring 24, the piston plate 23 moves to the left, the first electrical contact 25 is separated from the second electrical contact 26, the electromagnetic relay is changed from the normally closed state to the normally open state, after the electromagnet 28 is powered off, the magnetic repulsion force to 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 continuously stranded, the qualified quality of the cable stranding can be ensured without arranging a cable stranding detection device, the existing stranding device is effectively avoided when in use, 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 wire harness roller is provided with a rotary shifting piece 33, a torsion spring is arranged between the rotary shifting piece 33 and the disc, the disc 4 is further provided with a limit block 34 positioned at the rotary shifting piece 33, the limit block 34 limits the rotary shifting piece 33 to enable the rotary shifting piece 33 to rotate only in the same direction, the outer edge of the side mounting plate 8 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 shifting piece 33, when the wire harness roller normally rotates, the teeth 35 contact the rotary shifting piece 33 to enable the rotary shifting piece 33 to rotate, at the moment, the rotary shifting piece 33 does not affect the normal rotation of the teeth 35, namely, in the state of wire harness twisting, the rotation of the wire harness roller is not affected by the wire disc 9 between the two mounting plates 8, when the wire harness roller reversely rotates, the over-winding of the twisted portion is released, because of the limiting effect of the limiting block 34, the disc 4 can drive the placing disc 8 to rotate together, namely the cable disc 9 rotates to be rolled up, so that the cable is ensured to be always in a stretching state, and the normal operation of subsequent cable stranding work is ensured.

When the stranding device for producing the automobile wire harnesses is used, firstly, each cable disc 9 is respectively placed on each wire harness roller 32 and is sequentially limited and fixed through the limiting pipe fitting 10, then one end of a cable on each cable disc 9 bypasses the wire guide 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 rollers to rotate, so that the cable is stranded in front of the wire harness device, when the cable is excessively wound and the diameter is unqualified, the excessively stranded cable cannot pass through the piston plate 23 in the wire harness device, so that the piston plate 23 can move to the right until the first electric contact plate 25 is contacted with the second electric contact plate 26, the electromagnetic relay is changed into a normally open and energized normally closed state when power is off, so that the electromagnet 28 is energized, magnetic repulsion force to the magnetic plate 29 is generated, the transmission shaft 16 moves to the left, the driving bevel gear 17 is separated from the middle bevel gear 15 and is meshed with the second bevel gear 18, at this time, the driving bevel gear 17 directly drives the second bevel gear 18 to rotate, so that the second bevel gear 18 rotates reversely, so as to drive the whole harness roller to rotate reversely, so as to further enable the stranded cable to be released from stranding, after the state that the cable is wound together is released, the cable smoothly passes through the piston plate 23, at this time, under the elastic force action of the first spring 24, the piston plate 23 moves leftwards, the first electric contact piece 25 is separated from the second electric contact piece 26, the electromagnetic relay is changed from a normally closed state to a normally open state in a power-off state, after the electromagnet 28 is powered off, the magnetic repulsion force to the magnetic plate 29 disappears, under the elastic force action of the second spring 31, the transmission shaft 16 drives the driving bevel gear 17 to move rightwards to reset, the driving bevel gear 17 is meshed with the intermediate bevel gear 15 again, the initial rotating state is restored, 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) which are located at the outer edges of the two disks (4) are fixedly connected between the two disks (4), the opposite sides of the two disks (4) are respectively sleeved with a placing disk (8), placing grooves (32) are respectively formed in the opposite sides of the two placing disks (8), the cable disk (9) is inserted into the placing grooves (32) from one side of the placing grooves, and a limiting pipe fitting (10) for performing lateral limiting on one side of the cable disk (9) is arranged between the two placing disks (8).

2. The stranding device for automotive wiring harness production according to claim 1, characterized in that: the wire harness drum type cable fixing device is characterized in that a positioning rotating shaft (6) and a positioning rotating drum (7) are movably sleeved on two support plates (2) at the top of the machine base (1) respectively, the positioning rotating shaft (6) is fixedly connected with a wire harness drum on one side of the positioning rotating shaft, the positioning rotating drum (7) is fixedly connected with a wire harness drum on the other side of the positioning rotating shaft, and one end of a cable on each cable tray (9) penetrates through the positioning rotating drum (7).

3. 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 joint 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.

4. 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.

5. The stranding device for automotive wiring 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).

6. A stranding device for automotive wiring harness production according to claim 2, characterised in that: the wire harness device comprises a positioning pipe (19) fixed on a vertical plate (11), wherein a rotary sleeve (20) is sleeved on the positioning pipe (19) towards a bearing on one side of a positioning rotary drum (7), a rubber sleeve (21) is fixedly sleeved in the rotary sleeve (20), and the rubber sleeve (21) is movably connected with a cable.

7. A stranding device for automotive wiring harness production according to claim 6, characterised in that: the other side fixedly connected with side cap (22) of registration arm (19), and side cap (22) can be dismantled, movable sleeve is equipped with piston plate (23) in registration arm (19), piston plate (23) just cup joints with the outside activity of hank system cable, be equipped with movable suit at the outside first spring (24) of hank system cable between piston plate (23) and side cap (22), and first spring (24) are in the pressurized state, piston plate (23) and the opposite side of side cap (22) respectively fixedly connected with first electric contact (25) and second electric contact (26), and the opposite side of first electric contact (25) and second electric contact (26) contact after first spring (24) compression.

8. The stranding device for automotive wiring harness production according to claim 7, characterized in that: a second bevel gear (18) and a first bevel gear (14) are fixedly sleeved on the positioning rotating shaft (6), a middle bevel gear (15) is movably sleeved on the support plate (2), the tooth surface of the middle bevel gear (15) is meshed with the tooth surface of the first bevel gear (14), a limiting pipe (27) is fixedly arranged on one side of the support plate (2) far away from the middle bevel gear (15), a transmission shaft (16) is movably sleeved on one side of an output shaft of the speed reducing motor (3), 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), a driving bevel gear (17) is fixedly sleeved on the transmission shaft (16), and the tooth surfaces on two sides of the driving bevel gear (17) can be respectively meshed with the outer edges of the middle bevel gear (15) and the second bevel gear (18) through horizontal movement, one end fixedly connected with that transmission shaft (16) kept away from the output shaft is located magnetic sheet (29) of limiting pipe (27), the inside wall fixed mounting of limiting pipe (27) has electro-magnet (28), and when electro-magnet (28) circular telegram, the magnetic pole of electro-magnet (28) and magnetic sheet (29) repels each other, one side fixedly connected with end face bearing (30) of electro-magnet (28) are kept away from in magnetic sheet (29), and are equipped with second spring (31) of activity suit on transmission shaft (16) between the lateral wall of end face bearing (30) and extension board (2).

9. The stranding device for automotive wire harness production according to claim 8, characterized in that: the electromagnet (28) and a strong power supply, a 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 (25), the second electric contact (26) and the weak power supply form another circuit, and when the first electric contact (25) and the second electric contact (26) are in contact, the electromagnetic relay is changed from the power-off normally-open state to the power-on normally-closed state.

10. 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.