A device for twisting a low-voltage wire harness of an automobile and a method of using the same

Abstract

The application discloses a kind of automobile low-voltage wire harness twisting device and its using method, it is related to wire harness processing technical field, including base, the upper surface of base is fixedly connected with fixed seat, the upper surface of one end of base away from fixed seat is fixedly connected with stabilizing seat, and mobile assembly is arranged on base, mobile assembly includes mobile groove being opened in the upper surface of base, and electric screw rod is fixedly connected in the inside of mobile groove.By the process that thread hole drives automobile low-voltage wire harness rotation, the twisting of automobile low-voltage wire harness can be realized, in addition, the twisting of automobile low-voltage wire harness can be carried out by the movement of positioning assembly on moving seat during the movement of moving seat, compared with the existing direct twisting of automobile low-voltage wire harness at both ends, the twisting of automobile low-voltage wire harness can avoid the problem of uneven twisting of automobile low-voltage wire harness, ensure that automobile low-voltage wire harness is balanced, reduce local stress, reduce the risk of fracture and prolong service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wiring harness processing, in particular to an automobile low-voltage wiring harness twisting device and a use method thereof. BACKGROUND

[0002] Low-voltage wiring harness, also known as low-voltage cable, is a cable product used for power transmission and distribution, and the automobile low-voltage wiring harness is an important part of the automobile electrical system. Twisting processing is one of the key processes in wiring harness manufacturing. By twisting multiple wiring harnesses, the structure is more compact, thereby improving the reliability and mechanical strength of electrical connection. Currently, the existing wiring harness twisting device usually adopts a fixed two-end method, that is, by fixing the two ends of the wiring harness and applying a rotating force to realize twisting.

[0003] The existing twisting device needs to fix the two ends of the wiring harness. The wiring harnesses that need to be twisted have different sizes. When twisting the wiring harnesses of different sizes at the same time, it is easy to cause the problem that the wiring harnesses with smaller sizes cannot be fixed, which leads to the failure of the wiring harnesses to be twisted smoothly. For the wiring harnesses with larger sizes, it is easy to cause the problem of extrusion, which further causes the damage of the wiring harnesses, increases the processing difficulty and the scrap rate, reduces the reliability and service life of the wiring harnesses, increases the production cost, and affects the overall performance of the automobile electrical system. SUMMARY

[0004] To solve the above technical problems, the present application provides an automobile low-voltage wiring harness twisting device and a use method thereof.

[0005] The technical scheme is as follows:

[0006] An automobile low-voltage wiring harness twisting device, comprising a base, a fixed seat fixedly connected to the upper surface of the base, a stable seat fixedly connected to the upper surface of the end of the base away from the fixed seat, and a moving assembly provided on the base;

[0007] The moving assembly comprises a moving groove provided on the upper surface of the base, an electric screw rod fixedly connected to the inside of the moving groove, a moving seat slidably connected to the moving groove, the bottom of the moving seat sliding in the inside of the moving groove, two fixed frames fixedly connected to the two side walls of the moving seat, a stable wheel rotatably connected to each fixed frame, and an electric gear fixedly connected to the moving seat.

[0008] A positioning assembly is provided on the moving seat, the positioning assembly comprising a rotating plate rotatably connected to the inside of the moving seat, a tooth ring fixedly connected to the outer surface of each side of the rotating plate, the bottom of the tooth ring and the electric gear being in meshing relationship, a threading hole provided on the rotating plate, a plurality of abutting cavities provided on the rotating plate, a spring one fixedly connected to the groove wall of each abutting cavity, an abutting frame fixedly connected to the end of the spring one away from the abutting cavity, an abutting wheel one rotatably connected to the abutting frame, and an abutting wheel two rotatably connected to the inside of the abutting cavity.

[0009] Further, the part of the moving seat inside the moving groove is provided with a threaded hole, the moving seat is screwed with the electric threaded rod through the threaded hole, and the resisting wheels are made of soft rubber material.

[0010] Further, the moving seat is provided with a fastening assembly, the fastening assembly comprises fixed blocks fixedly connected on both sides of the moving seat, a spring two is fixedly connected on the side of the fixed block close to the stabilizing seat, a resisting rod is fixedly connected on the end of the spring two away from the fixed block, the resisting rod slides in the fixed block, an active ring is fixedly connected on the end of the resisting rod away from the spring two, a rotating ring is rotatably connected in the active ring, two protrusions are fixedly connected on the inner surface of the rotating ring, two active rods are slidably connected on the two protrusions, a pushing frame is fixedly connected on the end of the active rod away from the rotating plate, the pushing frame is hollow and oval, a spring three is sleeved on the outer surface of the active rod, the two ends of the spring three are fixedly connected with the protrusions and the pushing frame, and the end of the active rod away from the pushing frame abuts against the rotating plate.

[0011] Further, the fastening assembly further comprises two fixed plates fixedly connected on the rotating ring, the ends of the two fixed plates away from the rotating ring are fixedly connected with fixed rings, two hot melt guns are slidably connected in the fixed rings, symmetrical stabilizing rods are fixedly connected on the fixed rings, springs four are sleeved on the stabilizing rods, the two ends of the springs four are fixedly connected with the hot melt guns and the fixed rings, the ends of the two hot melt guns close to each other are fixedly connected with resisting rings, and the side of the hot melt gun away from the active rod is fixedly connected with an inclined block.

[0012] Further, a heating device is arranged in the hot melt gun and close to the end of the resisting ring, and the pushing frame abuts against the inclined block.

[0013] Further, the fastening assembly further comprises a pushing groove arranged in the hot melt gun, rotating blocks are symmetrically and rotatably connected in the pushing groove, swinging rods are symmetrically and rotatably connected in the pushing groove, a spring five is fixedly connected between the swinging rods and the rotating blocks, a ratchet gear is rotatably connected on the swinging rod, a pawl plate is rotatably connected on the swinging rod, and limiting blocks are fixedly connected on both sides of the stabilizing seat.

[0014] Further, a torsion spring is arranged at the connection between the pawl plate and the swinging rod, and the positions of the limiting blocks correspond to the resisting rod.

[0015] Further, a synchronous assembly is arranged on the rotating plate, the synchronous assembly comprises a synchronous rod fixedly connected on the rotating plate close to the stabilizing seat, a synchronous groove one is arranged on the rotating plate of the moving seat, synchronous grooves two are arranged on the rotating rings of the moving seat and the fixed seat, and the synchronous rod passes through the synchronous groove one and the two synchronous grooves two.

[0016] Further, the base is provided with a release assembly, the release assembly includes the convex strips fixedly connected on both sides of the base, the upper surface of the convex strip is fixedly connected with the spring six, the top of the spring six is fixedly connected with the release rod, the release rod is L-shaped, the release rod slides on the outer surface of the base, the end of the release rod close to the fixed seat is provided with a protrusion, the both sides of the moving seat are fixedly connected with the pushing plate, and the end of the release rod close to the stabilizing seat is provided with a boss.

[0017] A method for twisting a low-voltage wire harness of an automobile, comprising the following steps:

[0018] Step one: the low-voltage wire harness of the automobile is sequentially threaded through the threading holes of the stabilizing seat and the moving seat, and the wire harness passes between the abutting wheels one and two, the abutting wheel one is pressed against the wire harness under the action of the spring one, and different sizes of wire harnesses are adapted;

[0019] Step two: the moving seat is moved towards the stabilizing seat by the electric threaded rod, the electric gear drives the rotating plate to rotate through the gear ring, so that the wire harness in the threading hole is synchronously rotated, and the twisting process is started;

[0020] Step three: the rotating plate on the moving seat drives the rotating plate on the stabilizing seat to synchronously rotate through the synchronous rod, so that the both ends of the wire harness are synchronously rotated, and the wire harness is prevented from being wound in the twisting process;

[0021] Step four: the moving seat is moved in cooperation with the rotation of the rotating plate, so that the wire harness is moved and twisted, and the wire harness is uniformly stressed by the moving and twisting;

[0022] Step five: when the moving seat moves close to the stabilizing seat, the hot melt gun is close to the wire harness under the action of the pushing frame, the hot melt glue stick is melted and extruded to the surface of the wire harness, so that the hot melt glue is solidified and adheres to the end part of the wire harness.

[0023] As described above, the automobile low-voltage wire harness twisting device and the using method thereof have the following beneficial effects:

[0024] The abutting frame drives the abutting wheel one to press the low-voltage wire harness under the elastic action of the spring one, the compressed automobile low-voltage wire harness makes the abutting wheel two be pressed and deformed, the deformation of the abutting wheel one and the abutting wheel two can adapt to different sizes of automobile low-voltage wire harnesses, so that the low-voltage wire harnesses of different sizes can be twisted, and the adaptability of the device to the low-voltage wire harness twisting is improved;

[0025] The low-voltage wiring harness of the automobile can be twisted in the process of being driven to rotate by the threading hole. In addition, the low-voltage wiring harness of the automobile can be twisted in coordination with the positioning component on the moving base during the movement of the moving base. Compared with the existing method of twisting the low-voltage wiring harness of the automobile directly at both ends, the mobile method of twisting the low-voltage wiring harness of the automobile can avoid the problem of uneven twisting of the low-voltage wiring harness of the automobile, ensure the balanced force of the low-voltage wiring harness of the automobile, reduce local stress, reduce the risk of breakage and extend the service life;

[0026] The rotating plate on the stable base rotates synchronously with the rotating plate on the movable base to prevent the low-voltage wiring harness of the automobile from getting tangled during the twisting process, thus preventing the equipment from being unable to perform the twisting process due to tangling. This can further reduce downtime for adjustment, maintain production continuity and improve processing efficiency.

[0027] By gluing the melted hot melt glue stick to the low-voltage wiring harness of the car, the subsequent melted hot melt glue stick gradually solidifies, thereby fixing the low-voltage wiring harness of the car after the twisting process, preventing the low-voltage wiring harness of the car from becoming loose after the twisting process, ensuring the stability of the low-voltage wiring harness of the car after twisting, and reducing the situation where the successfully twisted wiring harness becomes loose and needs to be reprocessed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a three-dimensional schematic diagram of the components such as the first and second friction wheels of the present invention;

[0030] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at center A;

[0031] Figure 4 It is a three-dimensional schematic diagram of the components such as the electric gear, rotating plate and gear ring of the present invention;

[0032] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point B in the middle;

[0033] Figure 6 This is a schematic sectional perspective view of the fixing plate, hot melt gun, and abutment ring of the present invention;

[0034] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point C in the middle;

[0035] Figure 8 This is a schematic sectional perspective view of the base synchronization rod and the stabilizing seat of the present invention;

[0036] Figure 9 For the present invention Figure 8Structure enlarged schematic view at D;

[0037] Figure 10 For the invention Figure 8 Structure enlarged schematic view at E;

[0038] Figure 11 For the invention stable seat, rotating plate, synchronous rod and other components of the stereoscopic schematic diagram.

[0039] In the present application, the reference signs are:

[0040] 1, base; 2, fixed seat; 3, stable seat;

[0041] Moving assembly: 41, moving groove; 42, electric screw rod; 43, moving seat; 44, fixed frame; 45, stable wheel; 46, electric gear;

[0042] Positioning assembly: 51, rotating plate; 52, gear ring; 53, threading hole; 54, abutting cavity; 55, spring one; 56, abutting frame; 57, abutting wheel one; 58, abutting wheel two;

[0043] Fastening assembly: 61, fixed block; 62, spring two; 63, abutting rod; 64, movable ring; 65, rotating ring; 66, protruding block; 67, spring three; 68, pushing frame; 69, movable rod; 610, fixed plate; 611, fixed ring; 612, stable rod; 613, hot melt gun; 614, spring four; 615, abutting ring; 616, inclined block; 617, pushing groove; 618, rotating block; 619, swinging rod; 620, spring five; 621, ratchet gear; 622, pawl plate; 623, limiting block;

[0044] Synchronous assembly: 71, synchronous rod; 72, synchronous groove one; 73, synchronous groove two;

[0045] Release assembly: 81, protruding strip; 82, spring six; 83, release rod; 84, pushing plate. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0047] The embodiments provided by the present application will be described in detail below:

[0048] Embodiment one: as Figures 1 to 4 , Figure 11As shown, a kind of automobile low-voltage wire harness twisting device, including base 1, the upper surface of base 1 is fixedly connected with fixed seat 2 by bolt, the upper surface of the end of base 1 away from fixed seat 2 is fixedly connected with stabilizing seat 3 by bolt, and the moving assembly for the wire harness is twisted and is processed for longitudinal movement and is set on base 1;

[0049] Moving assembly includes the moving groove 41 being opened in the upper surface of base 1, the inside fixedly connected with electric screw rod 42 of moving groove 41, electric screw rod 42 is made of motor and screw rod, moving groove 41 is slidably connected with moving seat 43, the bottom of moving seat 43 is slid in the inside of moving groove 41, the part of moving seat 43 in the inside of moving groove 41 is opened with threaded hole, moving seat 43 is screwed with the screw rod of electric screw rod 42 by threaded hole, two fixed frames 44 are fixedly connected on the both sides wall of moving seat 43, each fixed frame 44 is rotatably connected with stabilizing wheel 45, electric gear 46 is fixedly connected on moving seat 43, and electric gear 46 is made of motor and gear;

[0050] Positioning assembly for rotating wire harness is set on moving seat 43, and positioning assembly includes the rotating plate 51 rotatably connected in the inside of moving seat 43, the both sides outer surfaces of rotating plate 51 are fixedly connected with gear ring 52, the bottom of gear ring 52 is meshed with the gear of electric gear 46, the threading hole 53 in the form of annular array is opened in rotating plate 51, a plurality of abutting cavities 54 corresponding with the number and position of each threading hole 53 are opened in rotating plate 51, spring one 55 is fixedly connected on the groove wall of each abutting cavity 54, the end of spring one 55 away from the abutting cavity 54 is fixedly connected with abutting frame 56, abutting wheel one 57 is rotatably connected on abutting frame 56, abutting wheel two 58 is rotatably connected in the inside of abutting cavity 54, and abutting wheel one 57 and abutting wheel two 58 are made of soft rubber material, and after being clamped to wire harness, abutting wheel one 57 and abutting wheel two 58 will be deformed due to extruding wire harness, so that the wire harness of different sizes is adapted.

[0051] It should be noted that: positioning assembly is set on fixed seat 2 and stabilizing seat 3, wherein the positioning assembly on fixed seat 2 is fixedly set, the rotating plate 51 and gear ring 52 are not installed on the positioning assembly on fixed seat 2, and threading hole 53 is directly opened on fixed seat 2, for clamping wire harness to form fixed end, wherein the positioning assembly on stabilizing seat 3 is rotatably set, the positioning assembly on stabilizing seat 3 is not installed gear ring 52, but rotating plate 51 in positioning assembly is rotatably connected in the inside of stabilizing seat 3, for synchronous rotation when the positioning assembly on moving seat 43 rotates, to prevent the positioning assembly on moving seat 43 from being twisted when wire harness is twisted.

[0052] As shown in the figure, Figure 1 , Figures 4 to 10As shown, the mobile seat 43 is provided with a fastening assembly for preventing the wire harness from loosening, the fastening assembly comprises fixed blocks 61 fixedly connected on both sides of the mobile seat 43, a spring 62 is fixedly connected to one side of the fixed block 61 close to the stable seat 3, a contact rod 63 is fixedly connected to the end of the spring 62 away from the fixed block 61, the contact rod 63 slides in the fixed block 61, the contact rod 63 is provided with two, the two contact rods 63 are fixedly connected with an activity ring 64 at one end penetrating through the fixed block 61, the activity ring 64 is rotatably connected with a rotating ring 65 in the inside, the inner surface of the rotating ring 65 is fixedly connected with two protrusions 66, the two protrusions 66 are slidably connected with an activity rod 69, the end of the activity rod 69 away from the rotating plate 51 is fixedly connected with a pushing frame 68, the pushing frame 68 is hollow oval, the outer surface of the activity rod 69 is sleeved with a spring 67, the two ends of the spring 67 are fixedly connected with the protrusions 66 and the pushing frame 68 respectively, the end of the activity rod 69 penetrating through the protrusions 66 is in contact with the rotating plate 51.

[0053] As shown in the figure, Figures 4 to 10 The fastening assembly further comprises two fixed plates 610 fixedly connected on the rotating ring 65 corresponding to the positions of the protrusions 66, the ends of the two fixed plates 610 away from the rotating ring 65 are fixedly connected with fixed rings 611, the inside of the fixed ring 611 is slidably connected with two hot melt guns 613, the fixed ring 611 is fixedly connected with stable rods 612 symmetrically above and below the hot melt guns 613, the stable rods 612 are sleeved with springs 614, the two ends of the spring 614 are fixedly connected with the hot melt guns 613 and the fixed ring 611 respectively, the ends of the two hot melt guns 613 close to each other are fixedly connected with contact rings 615, the inside of the hot melt gun 613 close to the contact ring 615 is provided with a heating device, the side of the hot melt gun 613 away from the activity rod 69 is fixedly connected with an inclined block 616, the pushing frame 68 is in contact with the inclined block 616, and the inclined block 616 can be pushed during the movement of the pushing frame 68.

[0054] As shown in the figure, Figures 4 to 10 The fastening assembly further comprises a push slot 617 opened in the inside of the hot melt gun 613, a rotating block 618 is symmetrically rotatably connected in the inside of the push slot 617, a swing rod 619 is symmetrically rotatably connected in the inside of the push slot 617, a spring 620 is fixedly connected between the swing rod 619 and the rotating block 618, a ratchet gear 621 is rotatably connected on the swing rod 619, a pawl plate 622 is rotatably connected on the swing rod 619, a torsion spring is arranged at the connection between the pawl plate 622 and the swing rod 619, so that the pawl plate 622 can limit the ratchet gear 621, limit blocks 623 are fixedly connected on both sides of the stable seat 3, the positions of the limit blocks 623 correspond to the contact rods 63.

[0055] Need to explain: in the fixed seat 2 also provided with fastening assembly, fixed seat 2 on the fastening assembly for positioning assembly on the mobile seat 43 after the wire harness twist, the wire harness of fixed seat 2 one end can also be fastened.

[0056] As Figure 1 , Figure 9 and Figure 11 As shown, the rotating plate 51 is provided with a synchronous assembly for synchronous positioning assembly rotation, the synchronous assembly includes a synchronous rod 71 fixedly connected to the rotating plate 51 near the stable seat 3 side, the rotating plate 51 on the mobile seat 43 is provided with a synchronous groove one 72, the rotating ring 65 on the mobile seat 43 and the rotating ring 65 on the fixed seat 2 are both provided with a synchronous groove two 73, the synchronous rod 71 respectively passes through the synchronous groove one 72 and the two synchronous grooves two 73, the rotating plate 51 on the mobile seat 43 can drive the rotating plate 51 on the stable seat 3 and the rotating ring 65 on the fixed seat 2 and the rotating ring 65 on the mobile seat 43 to rotate synchronously during the rotating process of the rotating plate 51 on the mobile seat 43.

[0057] As Figure 1 and Figure 11 As shown, the base 1 is provided with a release assembly for releasing the fastening assembly on the fixed seat 2, the release assembly includes a convex strip 81 fixedly connected to both sides of the base 1, the upper surface of the convex strip 81 is fixedly connected with a linear array of spring six 82, the top of the spring six 82 is fixedly connected with a release rod 83, the release rod 83 is L-shaped, the release rod 83 slides on the outer surface of the base 1, the end of the release rod 83 near the fixed seat 2 is provided with a protrusion, which is used to push the contact rod 63 on the fixed seat 2 when the release rod 83 moves downward, the two sides of the mobile seat 43 are fixedly connected with a pushing plate 84, the end of the release rod 83 near the stable seat 3 is provided with a boss, which is used to push the release rod 83 to move downward when the pushing plate 84 moves to the boss.

[0058] In combination with the above preferred embodiment, the following is the working process and working principle of the above embodiment:

[0059] The initial state is:

[0060] The mobile seat 43 is on the side close to the fixed seat 2, the spring one 55 is not compressed by the contact frame 56, the spring two 62 is not compressed by the contact rod 63, the movable rod 69 is in contact with the rotating plate 51, the movable rod 69 makes the pushing frame 68 stretch the spring three 67, at this time the pushing frame 68 does not press the inclined block 616, at this time the hot melt gun 613 does not compress the spring four 614, the swing rod 619 is not pressed by the fixed ring 611, the swing rod 619 does not compress the spring five 620, the torsional spring on the pawl plate 622 is not deformed, the torsional spring makes the pawl plate 622 contact the outer surface of the ratchet gear 621, the release rod 83 does not compress the spring six 82, and the inside of the hot melt gun 613 is inserted into the hot melt glue stick.

[0061] The working state is:

[0062] The automobile low-voltage wire harness that needs to be twisted is passed through the threading hole 53 near the stable seat 3 side, and in the process of passing through the threading hole 53, the automobile low-voltage wire harness will pass through the contact wheel one 57 and the contact wheel two 58, the automobile low-voltage wire harness will push the contact wheel one 57 to move upward in the contact cavity 54, and compress the spring one 55, in addition, the contact frame 56 drives the contact wheel one 57 to extrude the low-voltage wire harness under the elastic action of the spring one 55, the compressed automobile low-voltage wire harness will make the contact wheel two 58 be extruded and deformed, through the deformation of the contact wheel one 57 and the contact wheel two 58, it can adapt to different sizes of automobile low-voltage wire harness, ensure that different sizes of low-voltage wire harness can be twisted, improve the adaptability of the device to low-voltage wire harness twisting.

[0063] It should be noted that: after the wire passes through the threading hole 53 on the stable seat 3 side, then pass through the threading hole 53 on the moving seat 43, and finally pass through the threading hole 53 on the fixed seat 2, among them, the contact wheel one 57 and the contact wheel two 58 in the contact cavity 54 of the stable seat 3 are used to fix the automobile low-voltage wire harness.

[0064] The moving assembly cooperates with the positioning assembly to twist the automobile low-voltage wire harness:

[0065] At this time, start the motor on the electric screw rod 42, the electric screw rod 42 drives the moving seat 43 to move to the side close to the stable seat 3 through the threaded hole of the moving seat 43, the movement of the moving seat 43 drives the stable wheel 45 to move synchronously through the fixed frame 44, the stable wheel 45 can stabilize the movement of the moving seat 43 because it rolls with the upper surface of the base 1, which can prevent the moving seat 43 from tilting during movement and improve the stability of the moving seat 43, the electric gear 46 needs to be started at the same time during the movement of the moving seat 43, the electric gear 46 drives the rotating plate 51 to rotate inside the moving seat 43 through the gear ring 52, during the rotation of the rotating plate 51 on the moving seat 43, the rotating plate 51 drives the automobile low-voltage wire harness passing through the threading hole 53 to rotate synchronously, because the positioning assembly on the fixed seat 2 fixes one end of the automobile wire harness, it can realize the twisting of the automobile low-voltage wire harness during the rotation of the automobile low-voltage wire harness driven by the threading hole 53, in addition, the positioning assembly on the moving seat 43 can move during the movement of the moving seat 43 to twist the automobile low-voltage wire harness, compared with the existing direct twisting of the automobile low-voltage wire harness at both ends, the moving twisting of the automobile low-voltage wire harness can avoid the problem of uneven twisting of the automobile low-voltage wire harness, ensure the balanced force of the automobile low-voltage wire harness, reduce the local stress, reduce the risk of fracture and prolong the service life.

[0066] The synchronous assembly prevents the automobile low-voltage wire harness from winding:

[0067] In the process of rotating the rotating plate 51 on the mobile seat 43, the rotating plate 51 on the mobile seat 43 is driven to rotate synchronously by the synchronous slot 72, and the synchronous rod 71 is driven to rotate synchronously, which in turn drives the rotating plate 51 on the stable seat 3 to rotate synchronously. The rotating plate 51 on the stable seat 3 rotates synchronously with the rotating plate 51 on the mobile seat 43. Through the rotating process of the rotating plate 51 on the stable seat 3, the automobile low-voltage wire harness can be rotated synchronously away from the end of the fixed seat 2 and the mobile seat 43, preventing the automobile low-voltage wire harness from being twisted during the twisting process, preventing the twisting from causing the equipment to be unable to twist and process, further reducing downtime adjustment time, maintaining production continuity and improving processing efficiency.

[0068] Fastening assembly tightens the wire harness:

[0069] After the mobile seat 43 cooperates with the positioning assembly to twist the automobile low-voltage wire harness, the mobile seat 43 moves to the side close to the stable seat 3. At this time, the mobile seat 43 drives the abutting rod 63 sliding thereon to abut against the limiting block 623. Under the limiting action of the limiting block 623, the abutting rod 63 no longer moves. When the mobile seat 43 continues to move, the mobile seat 43 will compress the spring 62 through the fixed block 61. Because the abutting rod 63 no longer moves, the abutting rod 63 causes the movable ring 64 and the rotating ring 65 to no longer move at the same time. The rotating ring 65 also causes the protruding block 66 and the fixed plate 610 to no longer move. At this time, the continued movement of the mobile seat 43 causes the rotating plate 51 to continue to move close to the stable seat 3. After the rotating plate 51 continues to move, the spring 67 is elastically reset under the action of the spring 67, causing the pushing frame 68 to move close to the protruding block 66. The pushing frame 68 drives the movable rod 69 to always abut against the surface of the rotating plate 51. The oval ring of the pushing frame 68 will push the inclined block 616 during movement. The inclined surface of the inclined block 616 is pushed, causing the hot melting gun 613 to move to the middle inside the fixed ring 611, i.e. Figure 6The two hot melt guns 613 move close to each other, and the two hot melt guns 613 move stably on the stabilizing rod 612 during movement and compress the spring four 614. The hot melt gun 613 moves during movement, and the swing rod 619 enters the inside of the fixed ring 611, and the swing rod 619 is extruded under the resistance of the fixed ring 611 groove wall. The swing rod 619 rotates with the connecting place of the swing groove 617 as the axis under the limiting action of the groove wall of the fixed ring 611. The rotation of the swing rod 619 compresses the spring five 620 between the swing rod 619 and the rotating block 618. The swing rod 619 rotates synchronously during the rotation of the swing rod 619. The swing rod 619 cannot rotate under the limiting action of the pawl plate 622. The ratchet gear 621 pushes the hot melt glue stick into the hot melt gun 613 during rotation. The hot melt glue stick is pushed by the hot melt gun 613 to move close to the resistance ring 615. Under the action of the heating device in the hot melt gun 613, the hot melt glue stick gradually melts. After the hot melt glue stick is extruded out of the hot melt gun 613 after melting, the melted hot melt glue stick is accumulated on the resistance ring 615. At the same time, the hot melt gun 613 is extruded by the extrusion frame 68 and extruded to the middle part, that is, close to the twisted flower automobile low-voltage wire harness. The hot melt glue stick accumulated on the resistance ring 615 is extruded on the automobile low-voltage wire harness, and the hot melt glue stick is adhered to the automobile low-voltage wire harness. The subsequent hot melt glue stick gradually solidifies, thereby fixing the twisted flower automobile low-voltage wire harness, preventing the twisted flower automobile low-voltage wire harness from loosening, ensuring the stability of the twisted flower automobile low-voltage wire harness, and reducing the need for reprocessing of the loosened twisted flower wire harness.

[0070] During the movement of the moving seat 43 to the side close to the stabilizing seat 3, the push plate 84 fixed on both sides is moved synchronously. The movement of the push plate 84 extrudes the boss of the release rod 83. The push plate 84 extrudes the release rod 83 downward and compresses the spring six 82 through the boss. During the downward movement of the release rod 83, the protrusion on the top of the release rod 83 pushes the resistance rod 63 of the fastening assembly on the fixed seat 2. At this time, the hot melt gun 613 of the fastening assembly on the fixed seat 2 can adhere and fasten the twisted flower automobile low-voltage wire harness close to the fixed seat 2. The fastening assembly on the moving seat 43 can fasten the twisted flower automobile low-voltage wire harness at both ends, further preventing the twisted flower automobile low-voltage wire harness from loosening.

[0071] After the two ends of the twisted wire harness are fastened by the hot melt glue, the electric screw rod 42 is controlled again by the built-in controller at this time, the electric screw rod 42 reverses the rotation of the screw rod thereon, the screw rod reverses the rotation, and the screw rod reverses the rotation and moves the moving seat 43 in the moving groove 41 by a distance towards the side close to the fixed seat 2 through the threaded hole on the moving seat 43. After the movement of the moving seat 43, the moving seat 43 makes the abutting rod 63 no longer abut against the limiting block 623 through the fixed block 61, and the abutting rod 63 drives the movable ring 64 to approach the moving seat 43 under the elastic reset action of the spring two 62. In the process of movement of the movable ring 64, the protrusion 66 is driven to approach the rotating plate 51 by the rotating ring 65, and the protrusion 66 is driven to approach the rotating plate 51 by the rotating ring 65. Because the movable rod 69 is in an abutting state with the rotating plate 51, the movable rod 69 makes the pushing frame 68 remain stationary, and then the protrusion 66 will stretch the spring three 67 when the protrusion 66 moves, and the rotating ring 65 will also drive the fixed plate 610 to move synchronously. The fixed plate 610 drives the hot melt gun 613 to move towards the side close to the rotating plate 51 through the fixed ring 611, and the hot melt gun 613 moves to make the inclined block 616 no longer be pressed by the oval ring of the pushing frame 68. At the same time, the hot melt gun 613 slides on the stabilizing rod 612 under the elastic reset action of the spring four 614, and the hot melt gun 613 moves to make the swing rod 619 no longer be pressed by the fixed ring 611. The swing rod 619 reverses the rotation under the elastic reset action of the spring five 620, and the swing rod 619 reverses the rotation and drives the ratchet gear 621 to reverse the rotation synchronously. The ratchet gear 621 is not limited by the pawl plate 622, and then the ratchet gear 621 will not drive the hot melt rod in the hot melt gun 613 to move away from the abutting ring 615. Because of the elastic reset action of the spring four 614, the hot melt gun 613 moves to the inside of the fixed ring 611, and the two hot melt guns 613 move away from each other, so that the abutting ring 615 no longer abuts against the twisted wire harness, and then the twisted wire harness is convenient to remove.

[0072] In addition, because the movement of the moving seat 43 makes the pushing plate 84 no longer abut against the protrusion on the release rod 83, the release rod 83 moves upwards under the elastic reset action of the spring six 82. After the release rod 83 moves upwards, the protrusion on the top of the release rod 83 no longer pushes the abutting rod 63 on the fixed seat 2, and the hot melt gun 613 on the fixed seat 2 also moves to both sides. The abutting ring 615 on the hot melt gun 613 no longer abuts against the twisted wire harness close to the fixed seat 2.

[0073] Embodiment two: step one: the low-voltage wire harness of the automobile is sequentially threaded through the wire hole 53 of the stabilizing seat 3 and the moving seat 43, and the wire harness passes between the abutting wheel one 57 and the abutting wheel two 58. The abutting wheel one 57 presses the wire harness under the action of the spring one 55, and is suitable for wire harnesses of different sizes.

[0074] Step two: the electric screw rod 42 drives the moving seat 43 to move towards the stable seat 3, the electric gear 46 drives the rotating plate 51 to rotate through the gear ring 52, the wire harness in the wire hole 53 rotates synchronously, and the twisting process starts;

[0075] Step three: the rotating plate 51 on the moving seat 43 drives the rotating plate 51 on the stable seat 3 to rotate synchronously through the synchronous rod 71, so that the both ends of the wire harness rotate synchronously, and the wire harness is prevented from being wound in the twisting process;

[0076] Step four: the moving seat 43 moves in the moving process, and the rotation of the rotating plate 51 is matched, so that the moving twisting of the wire harness is realized; the moving twisting makes the wire harness bear force uniformly;

[0077] Step five: when the moving seat 43 moves to be close to the stable seat 3, the hot melting gun 613 approaches the wire harness under the action of the pushing frame 68, the hot melting glue stick is melted and extruded to the surface of the wire harness, so that the hot melting glue solidifies and adheres to the end part of the wire harness.

[0078] The above only describes the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for twisting a low voltage wire harness of an automobile, characterized by comprising: The utility model provides a kind of stable and fastening device for the stable and fastening of the base (1) of the base (1) and the stable seat (3) of the stable seat (3) on the base (1) is fixedly connected, the utility model has the advantages of simple structure, easy operation, high stability and fastening, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) can be fixed on the base (1) by the stable and fastening device, and the stable seat (3) ​ ​ 2. The automotive low voltage harness twist device of claim 1, wherein, ​ 3. The automotive low voltage harness twist device of claim 1, wherein, ​ 4. The automotive low voltage harness twist device of claim 3, wherein, The fastening assembly further comprises two fixed plates (610) fixedly connected to the rotating ring (65), one end of each of the two fixed plates (610) away from the rotating ring (65) is fixedly connected with a fixed ring (611), the inside of the fixed ring (611) is slidably connected with two hot melt guns (613), the fixed ring (611) is fixedly connected with symmetrical stabilizing rods (612), the stabilizing rods (612) are both sleeved with spring four (614), both ends of the spring four (614) are fixedly connected with the hot melt guns (613) and the fixed ring (611) respectively, one end of each of the two hot melt guns (613) close to each other is fixedly connected with a contact ring (615), one side of the hot melt gun (613) away from the movable rod (69) is fixedly connected with an inclined block (616).

5. The automotive low voltage harness twist device of claim 4, wherein, The inside of the hot melt gun (613) and one end close to the contact ring (615) are provided with a heating device, and the pushing frame (68) is attached to the inclined block (616).

6. The automotive low voltage harness twist device of claim 4, wherein, The fastening assembly further comprises a pushing groove (617) formed in the inside of the hot melt gun (613), the inside of the pushing groove (617) is rotatably connected with a rotating block (618) symmetrically, the inside of the pushing groove (617) is rotatably connected with a swing rod (619) symmetrically, the swing rod (619) and the rotating block (618) are fixedly connected with spring five (620), the swing rod (619) is rotatably connected with a ratchet gear (621), the swing rod (619) is rotatably connected with a pawl plate (622), and the two sides of the stabilizing seat (3) are fixedly connected with limit blocks (623).

7. The automotive low voltage harness twist device of claim 6, wherein, The connection between the pawl plate (622) and the swing rod (619) is provided with a torsion spring, and the position of the limit block (623) corresponds to the contact rod (63).

8. The automotive low voltage harness twist device of claim 1, wherein, The rotating plate (51) is provided with a synchronous assembly, the synchronous assembly comprises a synchronous rod (71) fixedly connected to the rotating plate (51) on the side close to the stabilizing seat (3), the rotating plate (51) on the moving seat (43) is provided with a synchronous groove one (72), the rotating ring (65) on the moving seat (43) and the rotating ring (65) on the fixed seat (2) are both provided with a synchronous groove two (73), and the synchronous rod (71) passes through the synchronous groove one (72) and the two synchronous grooves two (73) respectively.

9. The automotive low voltage harness twist device of claim 1, wherein, The base (1) is provided with a release assembly, the release assembly comprises protrusions (81) fixedly connected to the two sides of the base (1), the upper surface of the protrusion (81) is fixedly connected with spring six (82), the top of the spring six (82) is fixedly connected with a release rod (83), the release rod (83) is L-shaped, the release rod (83) slides on the outer surface of the base (1), the end of the release rod (83) close to the fixed seat (2) is provided with a protrusion, the two sides of the moving seat (43) are both fixedly connected with a pushing plate (84), and the end of the release rod (83) close to the stabilizing seat (3) is provided with a boss.

10. A method for twisting a low voltage wire harness for an automobile, characterized by, The application of the automobile low-voltage wire harness twisting device as claimed in claim 9, the twisting method comprises the following steps: Step one: the low-voltage wire harness of the car is sequentially threaded through the wire hole (53) of the stable seat (3) and the moving seat (43), and the wire harness passes between the contact wheel one (57) and the contact wheel two (58), the contact wheel one (57) is pressed under the action of the spring one (55) to adapt to different sizes of the wire harness; Step two: the electric screw rod (42) drives the moving seat (43) to move towards the stable seat (3), the electric gear (46) drives the rotating plate (51) to rotate through the gear ring (52), so that the wire harness in the wire hole (53) rotates synchronously, and the twisting process begins; Step three: the rotating plate (51) on the moving seat (43) drives the rotating plate (51) on the stable seat (3) to rotate synchronously through the synchronous rod (71), so as to ensure that both ends of the wire harness rotate synchronously and prevent the wire harness from winding during the twisting process; Step four: the moving seat (43) moves in cooperation with the rotation of the rotating plate (51) to realize the moving twisting of the wire harness, and the moving twisting makes the wire harness bear force evenly; Step five: when the moving seat (43) moves close to the stable seat (3), the hot melt gun (613) approaches the wire harness under the action of the pushing frame (68), the hot melt glue stick melts and is extruded to the surface of the wire harness, so that the hot melt glue solidifies and adheres to the end part of the wire harness.

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