A drag chain wire harness routing device

Abstract

The present application belongs to the technical field of drag chain wire harness assembly, and particularly relates to a drag chain wire harness threading device, which comprises a base plate, a guide support, a positioning support block, a locking assembly, a traction support plate and at least one threading connection unit. The threading connection unit comprises a wire harness tail clamp, a hooking assembly and a butt joint guide strip. The present application forms a reliable transition connection, ensures accurate threading path, realizes the working mode of "wire harness static and drag chain active sleeving", avoids force distortion and scratches of the wire harness during threading, and can adjust and lock the position according to the length of the wire harness, so that the wire harness remains in a natural straight state, effectively avoiding scratches with the inner cavity of the drag chain due to bending of the wire harness. Once adjusted, the device can be repeatedly used for batch threading operation of the same specification wire harness, significantly improving efficiency and consistency. The overall structure of the device is compact and easy to operate, and the threading can be completed by one person, taking into account reliability, adaptability and low cost.

Description

Technical Field

[0001] This invention belongs to the field of cable chain harness assembly technology and relates to a cable chain harness threading device. Background Technology

[0002] In automotive manufacturing, cable chain harnesses are widely used in parts requiring reciprocating motion, such as seat adjustments, to guide and protect the internal wiring harnesses. Cable chains are typically composed of multiple standard links spliced ​​together sequentially, and the wiring harnesses need to be threaded along the entire length of the cable chain, avoiding interference with the cable chain or damage to the harness sheath.

[0003] Currently, the common cable chain harness threading operation is still as follows: the operator first inserts the cable guide into the cable chain, then hooks the end of the harness, and finally pulls it manually to complete the threading. This method is inefficient, labor-intensive, and extremely inconvenient for long-stroke cable chains or when multiple harnesses are threaded at the same time. It is easy for the harness to get stuck or loose, and it requires two people to work together, which is quite inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a cable chain harness threading device that solves the technical problems of low threading efficiency, high labor intensity, easy loosening and jamming, and the need for multiple people to work together in the prior art.

[0005] This invention discloses a cable chain harness threading device, comprising: substrate; A guide bracket is fixed to the base plate and extends along a first direction; A positioning support block is slidably mounted on the guide bracket along the first direction; A locking assembly is installed on the positioning block to lock the positioning block to the guide bracket; A traction support plate is slidably disposed on the guide bracket along the first direction and spaced apart from the positioning support block in the first direction; At least one threaded connection unit is located on one side of the guide bracket along a second direction, and the second direction is perpendicular to the first direction; The threading connection unit includes: A wire harness tail clamp is mounted on the positioning block and is used to clamp the tail end of the wire harness. A hook assembly, installed on the traction support plate, is used to hook the end of the cable chain; The docking guide is independently configured, with a clamping section at one end for securing the beginning of the wire harness and a snap-fit ​​section at the other end for engaging with the drag chain guide rail.

[0006] This application establishes a reliable transition connection, ensuring accurate threading path and realizing the working mode of "wire harness stationary, cable chain actively threading". This avoids the wire harness being twisted and scratched during the threading process. The position can be adjusted and locked according to the wire harness length, keeping the wire harness in a naturally straight state. This effectively avoids the wire harness scraping against the inner cavity of the cable chain due to bending. Moreover, a single adjustment can be reused for batch threading operations of wire harnesses of the same specification, significantly improving efficiency and consistency. The device has a compact overall structure and is easy to operate. It can be completed by a single person, taking into account reliability, adaptability and low cost.

[0007] Based on the above technical solution, the solution of this application can be further improved as follows: Preferably, there are two threading connection units, which are symmetrically arranged on both sides of the guide bracket in the second direction; by adopting this solution, two sets of wire harnesses can be threaded simultaneously on both sides of the device, which significantly improves the threading efficiency.

[0008] Preferably, it includes: A linear drive mechanism is mounted on the bottom of the substrate and extends along a first direction; A transmission plate is mounted on the drive end of the linear drive mechanism; The base plate has a strip-shaped groove extending along the first direction, and the transmission plate passes through the strip-shaped groove and is fixedly connected to the traction support plate. By adopting this solution, the traction support plate can automatically slide along the guide bracket, replacing the manual pushing operation, making the threading action more stable and controllable, further reducing the labor intensity of the operator, and improving the threading efficiency.

[0009] Preferably, the linear drive mechanism includes: An active pulley is rotatably mounted on the bottom of the substrate; The driven pulley is rotatably mounted on the bottom of the substrate and is spaced apart from the driving pulley along the first direction; A synchronous belt is wound around the driving pulley and the driven pulley, and the transmission plate is fixedly connected to one side of the synchronous belt; The drive motor is installed at the bottom of the base plate and is connected to the drive pulley for transmission. With this solution, the transmission is smooth and slip-free, ensuring the uniformity of the drag chain movement speed and the accuracy of positioning during the threading process. It is also easy to operate and control, and is arranged at the bottom of the base plate without occupying the upper operating space. The structure is compact and the layout is reasonable.

[0010] Preferably, the clamping segment includes: The fixing strip has a insertion hole at one end for inserting the head end of the wire harness, and the other end is fixedly connected to the fastening section; and the fixing strip has a placement opening on the peripheral wall at the end away from the fastening section that communicates with the insertion hole. The wire clamp is embedded in the placement opening, with one end hinged to one side of the placement opening and the hinge axis parallel to the axial direction of the fixing strip. The other end is snapped to the other side of the placement opening. This solution enables quick clamping and reliable fixing of the wire harness head end. The wire harness is easy to insert and remove. It is suitable for situations where the wire harness head end has terminals or connectors. It will not be accidentally loosened, ensuring the reliability of the connection. The switch operation is also convenient.

[0011] Preferably, the fastening section includes: The connecting strip has a fastening hole at one end for inserting the drag chain guide rod, and the other end is fixedly connected to the clamping section; the connecting strip has two oppositely arranged mounting grooves on the peripheral wall at the end away from the clamping section, and both mounting grooves are connected to the fastening hole; A support block is fixedly installed at the bottom of the fastening hole; Two rotating blocks are rotatably disposed in the two mounting slots, and the middle part of each rotating block is hinged to the side wall of the mounting slot, with the hinge axis perpendicular to the axial direction of the mating strip; Two elastic elements correspond one-to-one with the two rotating blocks, with one end of each elastic element abutting against the support block and the other end abutting against the end of the corresponding rotating block near the clamping section, for applying a biasing force to the corresponding rotating block to make it rotate about the hinge axis; The rotating block has a toothed end that protrudes from the clamping section. The toothed end extends into the fastening hole under the biasing pressure of the elastic element. This solution enables rapid docking and automatic locking of the docking guide bar and the end of the drag chain guide rail. It is simple to operate, easy to use, and can be completed with one hand. The connection is reliable and the positioning is accurate. It can effectively prevent the docking guide bar 63 from shifting under force or accidentally coming off during the threading process.

[0012] Preferably, the support block has a first limiting groove, the rotating block has a second limiting groove, and the two ends of the elastic element are respectively embedded in the first limiting groove and the second limiting groove. This solution effectively prevents the elastic element from slipping or deviating, ensures that the force direction of the elastic element is always stable, and improves the structural stability and service life of the fastening section.

[0013] Preferably, the guide bracket includes: Two end plates are fixed to the base plate and arranged at intervals along the first direction; Multiple guide rods are arranged side-by-side at intervals between the two end plates and extend along a first direction; Multiple sliders are slidably fitted onto the guide rod in a corresponding manner and are located at the bottom of the traction support plate; The positioning support block is slidably sleeved on multiple guide rods. This solution achieves precise guidance and synchronous support between the positioning support block and the traction support plate along the same axis, improves the stability and smoothness of sliding, effectively prevents jamming, and ensures the straightness and reliability of the cable chain through the wire harness.

[0014] Preferably, the locking assembly includes: A sliding seat is fixed to the positioning support block and slidably sleeved on the guide rod; A threaded rod is threadedly connected to the sliding seat, and one end of the rod extends into the sliding seat and can abut against the guide rod. The handle rod is fixed to one end of the threaded rod located outside the sliding seat. With this solution, the positioning block can be reliably locked in any position of the guide bracket. It has a simple structure, strong locking force, and can be operated without tools, completed with one hand. The adjustment is convenient and quick.

[0015] Preferably, the hook assembly includes: A connecting block is arranged below the traction support plate; The suspension component is connected at both ends to the connecting block and the traction support plate, respectively. The hook is hinged at one end to the connecting block on the side opposite to the hanging component. This design facilitates quick hooking with the end of the cable chain and allows it to swing freely with the cable chain's posture during threading, automatically adapting to the cable chain's movement direction. This improves the smoothness of threading and the reliability of the connection, and the structure is simple and easy to operate.

[0016] Through the above technical solution, the present invention achieves the following beneficial effects: 1. This application uses the clamping section of the docking guide bar to clamp the beginning of the wire harness and the snap-fit ​​section to snap onto the end of the drag chain guide rail, so that the beginning of the wire harness and the drag chain form a reliable transition connection, ensuring the accuracy of the threading path and avoiding the problems of easy loosening and easy deviation of traditional hooks or clamping methods. 2. This application uses a positioning support block and a wire harness tail clamp to fix the end of the wire harness, and a traction support plate to drive the drag chain to slide towards the wire harness, thereby realizing the working mode of "wire harness stationary, drag chain actively threading", which avoids the wire harness being twisted or scratched during the threading process. The operation is stable and reliable, and can be completed by a single person, which significantly reduces labor intensity and labor costs. 3. The positioning support block of this application can be adjusted in position according to the length of the wire harness and locked by the locking component, so that the wire harness remains in a naturally straight state during the threading process, effectively avoiding the situation where the wire harness is bent and scrapes against the inner cavity of the drag chain, thus improving the smoothness of threading and the integrity of the wire harness. 4. For wire harnesses of the same specification, the positioning support block can be reused after being adjusted and locked once, without repeated debugging, which significantly improves the efficiency and consistency of wire threading in batch operations. 5. The overall structure of this application is compact and easy to operate, and it takes into account reliability, adaptability and low cost, making it suitable for large-scale mass production. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a top perspective view of the cable chain harness threading device described in a specific embodiment of this application; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 This is a bottom perspective view of the cable chain harness threading device described in a specific embodiment of this application; Figure 5 for Figure 1 A three-dimensional view of the docking guide bar in the cable chain harness threading device shown; Figure 6 for Figure 5 The front sectional view of the docking guide bar shown; Figure 7 This is a schematic diagram of the end structure of the drag chain guide rail according to a specific embodiment of this application; Figure 8 for Figure 5 The diagram shows the assembly of the docking guide bar. Figure 9 This is a schematic diagram of the cable chain structure; Explanation of reference numerals in the attached figures: 1. Substrate; 11. Groove; 2. Guide bracket; 21. End plate; 22. Guide rod; 23. Slider; 3. Positioning support block; 4. Locking assembly; 41. Sliding seat; 42. Threaded rod; 43. Handle rod; 5. Traction support plate; 6. Threading and connecting unit; 61. Wire harness tail clip; 62. Hook and hanging assembly; 621. Connecting block; 622. Hanging component; 623. Hook; 63. Connecting guide bar; 631. Clamping section; 6311. Fixing bar; 6311a. Wire insertion hole; 6311b. Placement opening; 6312. Wire clamping plate; 632. Fastening section; 6321. Connecting bar; 6321a. Fastening hole; 6321b. Mounting groove; 6321c. Clearance notch; 6322. Support block; 6322a. First limiting groove; 6323. Rotating block; 6323a. Locking tooth; 6323b. Second limiting groove; 6324. Elastic element; 64. Support platform; 7. Linear drive mechanism; 71. Driving pulley; 72. Driven pulley; 73. Synchronous belt; 74. Drive motor; 8. Transmission plate. Detailed Implementation

[0019] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0020] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as “first” or “second” may explicitly or implicitly include one or more of the stated features.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0023] Example: like Figure 1 As shown in the figure, this application discloses a cable chain harness threading device for quickly and reliably threading the cable chain harness into the cable chain. It is suitable for single-person operation in long-stroke, multi-cable-chain working conditions, and realizes the one-time threading of the cable chain harness into the cable chain, effectively reducing labor intensity and improving assembly efficiency. Its specific mechanism includes: a base plate 1, a guide bracket 2, a positioning support block 3, a locking assembly 4, a traction support plate 5, and at least one threading connection unit 6.

[0024] The base plate 1 provides the mounting foundation for the entire device, ensuring that the whole device is placed stably on the workbench; a chassis can be installed at its bottom so that the device is at a suitable height.

[0025] The guide bracket 2 is fixed on the base plate 1 and extends along the first direction to provide a linear sliding track for the positioning support block 3 and the traction support plate 5, ensuring that the two move along the same axis, ensuring the coaxiality of the wire harness and the drag chain during the threading process, and avoiding skew and jamming.

[0026] The positioning block 3 is slidably mounted on the guide bracket 2 along the first direction to support the wire harness tail clip 61. When threading the wire, the positioning block 3 is locked in place, keeping the tail end of the wire harness stationary, forming a "fixed end", which provides a reference for the drag chain to thread the wire harness.

[0027] The locking component 4 is installed on the positioning support block 3 to lock the positioning support block 3 on the guide bracket 2, preventing the positioning support block 3 from shifting under force during the wire threading process, ensuring that the end of the wire harness is securely fixed, and the position of the positioning support block 3 can be freely adjusted after unlocking to accommodate wire harnesses of different lengths.

[0028] The traction support plate 5 is slidably mounted on the guide bracket 2 along the first direction and is spaced apart from the positioning support block 3 in the first direction to support the hook assembly 62. During operation, pulling the traction support plate 5 can drive the drag chain to move along the first direction, so that the drag chain is sleeved onto the fixed wire harness to complete the insertion action.

[0029] At least one threading connection unit 6 is located on one side of the guide bracket 2 along a second direction, and the second direction is perpendicular to the first direction; used to form a complete connection link between the wire harness and the drag chain.

[0030] The threading connection unit 6 includes: a wire harness tail clip 61, a hook assembly 62, and a docking guide strip 63.

[0031] The wire harness tail clip 61 is installed on the positioning support block 3. It has a clamping function to clamp the tail end of the wire harness, so that the wire harness remains stationary during the threading process and prevents the wire harness from being dragged as a whole by the drag chain.

[0032] The hook assembly 62 is installed on the traction support plate 5. It has a hook function and is used to hook the end of the cable chain, so that the cable chain and the traction support plate 5 form a connection that is easy to disassemble. Thus, when the traction support plate 5 moves, it can drive the cable chain to move synchronously and complete the insertion action.

[0033] The docking guide bar 63 is independently configured and serves as a transition connector. It can be removed and placed separately and is used as an intermediate medium between the beginning of the wire harness and the drag chain guide rail to complete the transfer between two different objects.

[0034] One end of the docking guide 63 has a clamping section 631 for clamping the beginning of the wire harness. The clamping section 631 clamps the beginning of the wire harness to form a reliable mechanical connection between the wire harness and the docking guide 63, ensuring that the beginning of the wire harness will not come off the docking guide 63 during the threading process.

[0035] The other end of the docking guide 63 has a snap-fit ​​section 632 for snapping with the cable chain guide rail. The snap-fit ​​section 632 is used to form a snap-fit ​​with the end of the cable chain guide rail in the external cable chain handling device, thereby aligning and fixing the docking guide 63 to the end of the cable chain guide rail, making the docking guide 63 a temporary extension of the cable chain guide rail.

[0036] The working principle of the above technical solution is as follows: In use, first clamp the tail end of the wire harness to the wire harness tail clamp 61, then insert the head end of the wire harness into the clamping section 631 of the docking guide 63 and clamp it tightly, so that the head end of the wire harness and the docking guide 63 form a reliable connection. Next, snap the fastening section 632 of the docking guide 63 onto the end of the drag chain guide rail in the external drag chain handling device, so that the docking guide 63 is aligned and fixed. At the same time, slide the traction support plate 5 freely along the guide bracket 2 to one end close to the external drag chain handling device, and then hook the hook assembly 62 onto the end of the drag chain.

[0037] It should be noted that when threading a wire harness of a certain specification for the first time, the locking component 4 can be loosened first, allowing the positioning block 3 to slide freely on the guide bracket 2. This allows the position of the positioning block 3 on the guide bracket 2 to be adjusted according to the length of the wire harness to be threaded, ensuring the wire harness remains relatively straight and preventing it from scraping against the inner cavity of the cable chain during threading due to bending. After the position is determined, the locking component 4 is operated to lock the positioning block 3 onto the guide bracket 2, completing the positioning. For the same type of wire harness, once the position of the positioning block 3 is adjusted and locked, subsequent threading of wire harnesses of the same specification will not require further adjustment, and connection and threading operations can be performed directly.

[0038] During the threading operation, the operator pushes the traction support plate 5 along the guide bracket 2 towards the positioning block 3. The traction support plate 5 drives the cable chain to move synchronously through the hook assembly 62, and the cable chain slides outward along the cable chain guide rail. Since the docking guide bar 63 is fixed to the end of the guide rail, the cable chain slides out along the direction guided by the docking guide bar 63. The positioning block 3 and the cable harness tail clamp 61, which are locked at the tail end of the wire harness, are fixed in place, while the head end of the wire harness is fixed by the docking guide bar 63. Thus, the cable chain will gradually loop onto the wire harness. As the traction support plate 5 continues to move, the cable chain will loop the entire wire harness into its inner cavity, completing the threading operation.

[0039] After threading is complete, the cable chain continues to advance until the clamping section 631 of the docking guide 63 is exposed. At this point, the cable harness tail clamp 61 and the clamping section 631 of the docking guide 63 are released to release the cable harness. The docking guide 63 is then removed from the end of the cable chain guide rail, and the end of the cable chain is detached from the hook assembly 62. At this point, the docking guide 63 is withdrawn, the cable harness has been threaded into the cable chain, and the device can return to its initial state. After the external cable chain transport device delivers the next cable chain into place, the threading operation for the next set of cable harnesses of the same specification can begin.

[0040] This invention utilizes the clamping section 631 and the fastening section 632 of the docking guide bar 63 to connect the beginning of the wire harness and the end of the drag chain guide rail, forming a reliable transition connection and ensuring accurate threading path. The positioning block 3 fixes the end of the wire harness, and the traction plate 5 drives the drag chain to slide, achieving a "wire harness stationary, drag chain actively threading" working mode, avoiding twisting and scratching of the wire harness during threading. The positioning block 3 can be adjusted and locked according to the length of the wire harness, keeping the wire harness in a naturally straight state, effectively preventing scratching and collision between the wire harness and the drag chain cavity due to bending. Furthermore, a single adjustment allows for repeated batch threading operations of wire harnesses of the same specification, significantly improving efficiency and consistency. The device has a compact overall structure, is easy to operate, and can be completed by a single person, balancing reliability, adaptability, and low cost.

[0041] In some embodiments, such as Figure 1 As shown, there are two threading connection units 6, which are symmetrically arranged on both sides of the guide bracket 2 in the second direction.

[0042] The above design allows two sets of wire harnesses to be threaded simultaneously on both sides of the device, significantly improving threading efficiency.

[0043] In some embodiments, such as Figure 4 As shown, it also includes: a linear drive mechanism 7 and a transmission plate 8; the linear drive mechanism 7 is installed on the bottom of the base plate 1 and extends along the first direction; the transmission plate 8 is installed on the drive end of the linear drive mechanism 7; wherein, a strip groove 11 extending along the first direction is provided on the base plate 1, and the transmission plate 8 passes through the strip groove 11 and is fixedly connected to the traction support plate 5.

[0044] During the threading stage, the linear drive mechanism 7 drives the transmission plate 8 to move along the strip groove 11 toward the positioning support block 3. The transmission plate 8 drives the traction support plate 5 to slide synchronously along the guide bracket 2, and then drives the drag chain to move toward the wire harness through the hook assembly 62, thereby achieving automatic threading without the need for the operator to manually push the traction support plate 5.

[0045] Through the above design, the traction support plate 5 can be automatically slid along the guide bracket 2, replacing the manual pushing operation, making the threading action more stable and controllable, further reducing the labor intensity of operators and improving the threading efficiency.

[0046] Based on the above embodiments, such as Figure 4 As shown, the linear drive mechanism 7 includes: a driving pulley 71, a driven pulley 72, a synchronous belt 73, and a drive motor 74.

[0047] The drive pulley 71 is rotatably mounted on the bottom of the base plate 1. It can be securely mounted through a concave plate and is used to receive the rotational power of the drive motor 74 to drive the synchronous belt 73 to circulate.

[0048] The driven pulley 72 is rotatably mounted on the bottom of the base plate 1 and is spaced apart from the driving pulley 71 along the first direction. It can also be securely mounted by a concave plate. It is used to cooperate with the driving pulley 71 to tension and support the synchronous belt 73, so that the synchronous belt 73 forms a straight segment between the two ends in the first direction, thereby providing a linear motion trajectory for the transmission plate 8.

[0049] The synchronous belt 73 is wound around the driving pulley 71 and the driven pulley 72, and the transmission plate 8 is fixedly connected to one side of the synchronous belt 73; it is used to drive the transmission plate 8 to make linear reciprocating motion along the first direction using its straight section, which is smooth, slip-free and has high positioning accuracy.

[0050] The drive motor 74 is mounted on the bottom of the base plate 1 and is connected to the drive pulley 71 for transmission. Its forward and reverse rotation can drive the synchronous belt 73 to rotate in a cycle, realizing the forward and reset of the transmission plate 8 and the traction support plate 5. It can also be connected to the drive pulley 71 through a reducer, thereby ensuring the driving force.

[0051] Through the above design, the transmission is smooth and slip-free, ensuring the uniformity of the drag chain movement speed and the accuracy of positioning during the threading process. It is also easy to operate and control, and is arranged as a whole at the bottom of the base plate 1, without occupying the upper operating space. The structure is compact and the layout is reasonable.

[0052] In some embodiments, such as Figure 5 As shown, the clamping section 631 adopts a side-opening hinged clamping structure. Through the cooperation of the fixing strip 6311 and the wire clamping plate 6312, the wire harness can be quickly clamped and released.

[0053] One end of the fixing strip 6311 has a plug hole 6311a for inserting the head end of the wire harness, and the other end is fixedly connected to the fastening section 632, so that the clamping section 631 and the fastening section 632 form an integral strip structure. Its cross-section is a flat U-shaped structure, which ensures the compactness of the structure. In addition, the fixing strip 6311 has a placement opening 6311b on the peripheral wall of the end away from the fastening section 632, which communicates with the plug hole 6311a.

[0054] The pressure plate 6312 is embedded in the placement opening 6311b and has an overall U-shaped structure. One end of the pressure plate 6312 is hinged to one side of the placement opening 6311b, and the hinge axis is parallel to the axis of the fixing strip 6311, so that the pressure plate 6312 can be flipped outward to open or closed inward around the hinge axis. The other end is snapped to the other side of the placement opening 6311b.

[0055] When the wire clamping plate 6312 is closed, its inner side presses against the beginning of the wire harness inserted into the insertion hole 6311a, firmly holding the beginning of the wire harness in place through the clamping force. When it is necessary to insert or remove the wire harness, the buckle is released, and the wire clamping plate 6312 is flipped outward to open, allowing for quick operation and convenient clamping.

[0056] When clamping the wire harness, unfasten the snap-on end of the clamping plate 6312 and flip it outwards to expose the placement opening 6311b; place the beginning end of the wire harness into the insertion hole 6311a through the placement opening 6311b; then flip the clamping plate 6312 inwards to close it, so that its inner side presses the wire harness tightly, and fasten the snap-on end with the corresponding side of the placement opening 6311b to lock it in place, thus completing the clamping of the beginning end of the wire harness. To release the wire harness, simply reverse the operation.

[0057] The above design enables quick clamping and reliable fixation of the wire harness head end, making the wire harness insertion and removal operations convenient. It is suitable for situations where the wire harness head end has terminals or connectors. The snap-locking method ensures that the wire clamp plate 6312 will not be accidentally released, guaranteeing the reliability of the connection, and the switch operation is convenient.

[0058] In some embodiments, such as Figures 5 to 8 As shown, the snap-fit ​​section 632 is used to form a snap-fit ​​connection with the end of the drag chain guide rail in the external drag chain handling device to align and fix the docking guide bar 63 to the end of the guide rail, including: docking bar 6321, support block 6322, two rotating blocks 6323 and two elastic members 6324.

[0059] One end of the connecting strip 6321 is provided with a fastening hole 6321a for inserting the drag chain guide rod 22, and the other end is fixedly connected to the clamping section 631, so that the clamping section 631 and the fastening section 632 form an integral strip structure; the connecting strip 6321 has two oppositely arranged mounting grooves 6321b on the peripheral wall of the end away from the clamping section 631, and both mounting grooves 6321b are connected to the fastening hole 6321a.

[0060] The support block 6322 is fixedly disposed at the bottom of the fastening hole 6321a, serving as the fixed support end of the elastic element 6324, providing a contact reference for the elastic element 6324, bearing the compressive reaction force of the elastic element 6324, and ensuring that the elastic element 6324 can stably apply bias pressure to the rotating block 6323.

[0061] Two rotating blocks 6323 are rotatably disposed in two mounting slots 6321b, and the middle part of each rotating block 6323 is hinged to the side wall of the mounting slot 6321b, with the hinge axis perpendicular to the axial direction of the mating strip 6321; so that the rotating block 6323 can rotate around the hinge axis in the mounting slot 6321b.

[0062] Two elastic elements 6324 correspond one-to-one with two rotating blocks 6323, and one end of the elastic element 6324 abuts against the support block 6322, and the other end abuts against the end of the corresponding rotating block 6323 near the clamping section 631, for applying a biasing force to the corresponding rotating block 6323 to make it rotate around the hinge axis.

[0063] Among them, the rotating block 6323 has a protruding locking tooth 6323a at one end away from the clamping section 631. The locking tooth 6323a extends into the fastening hole 6321a under the bias pressure of the elastic member 6324.

[0064] During docking, align the snap-fit ​​hole 6321a of the docking bar 6321 with the insert block at the end of the cable chain guide and push it in. The insert block at the end of the cable chain guide first contacts the retaining tooth 6323a, pushing the rotating block 6323 to rotate outward against the biasing force of the elastic element 6324, causing the retaining tooth 6323a to disengage from the snap-fit ​​hole 6321a, thus allowing the insert block at the end of the cable chain guide to be smoothly inserted.

[0065] When the insert block is inserted into place and the corresponding slot on the insert block aligns with the position of the locking tooth 6323a, under the biasing force of the elastic element 6324, the end of the rotating block 6323 near the clamping section 631 is pushed outward, and the locking tooth 6323a at the end away from the clamping section 631 swings inward and extends into the fastening hole 6321a, and is locked into the slot of the insert block, thus completing the automatic locking and fixing the docking guide 63 to the end of the drag chain guide rail.

[0066] During disassembly, press the end of the rotating block 6323 near the clamping section 631 to overcome the bias pressure of the elastic element 6324, causing the locking teeth 6323a to exit the slot of the insert block, and the docking guide 63 can be pulled out.

[0067] More preferably, such as Figure 5 and Figure 6 As shown, the mounting groove 6321b has clearance notches 6321c on both sides of one end near the clamping section 631, which are used to allow the end of the rotating block 6323 near the clamping section 631 to protrude from the side wall of the mounting groove 6321b, avoiding interference between the fingers and the side wall of the mounting groove 6321b during the pressing operation, and improving the convenience and comfort of the disassembly operation.

[0068] Through the above design, the docking guide 63 and the end of the drag chain guide rail can be quickly docked and automatically locked. The operation is simple and convenient, and can be completed with one hand. The connection is reliable and the positioning is accurate, which can effectively prevent the docking guide 63 from being deviated by force or accidentally coming off during the threading process.

[0069] In this embodiment, as Figure 6 As shown, the support block 6322 has a first limiting groove 6322a, the rotating block 6323 has a second limiting groove 6323b, and the two ends of the elastic member 6324 are respectively embedded in the first limiting groove 6322a and the second limiting groove 6323b.

[0070] The above design effectively prevents the elastic element 6324 from slipping or deviating, ensuring that the force direction of the elastic element 6324 remains stable, and improving the structural stability and service life of the fastening section 632.

[0071] In some embodiments, such as Figure 1 As shown, the threading connection unit 6 also includes a support platform 64, which is fixedly mounted on the base plate 1 and located at one end near the external cable chain transport device. It is used to support the head end of the wire harness during the threading preparation stage, so that the head end of the wire harness and its connected docking guide 63 can smoothly and straightly face the end of the cable chain guide, which facilitates the alignment and connection of the docking guide 63 with the cable chain guide.

[0072] In some embodiments, such as Figure 1 As shown, the guide bracket 2 includes: two end plates 21, multiple guide rods 22 and multiple sliders 23.

[0073] Two end plates 21 are fixed on the base plate 1 and arranged at intervals along the first direction to provide fixed support at both ends for multiple guide rods 22, ensuring the parallelism and positional accuracy of the guide rods 22.

[0074] Multiple guide rods 22 are arranged side by side and spaced between two end plates 21 and extend along the first direction; preferably, two rods are arranged to balance material cost and guiding effect. They are used to provide sliding support and guidance for both the positioning support block 3 and the traction support plate 5, so that the two can move smoothly along the same axis, ensuring the coaxiality of the wire harness and the drag chain during the threading process, while dispersing the load and preventing jamming.

[0075] Multiple sliders 23 are slidably sleeved on the guide rod 22 in a one-to-one correspondence and are located at the bottom of the traction support plate 5, which improves the smoothness and stability of the sliding of the traction support plate 5 and prevents it from tilting when under force.

[0076] The positioning support block 3 is slidably sleeved on multiple guide rods 22, so that it shares the same guiding system with the traction support plate 5. The structure is compact and ensures the consistency of the threading reference.

[0077] Through the above design, the positioning support block 3 and the traction support plate 5 are accurately guided and synchronously supported along the same axis, avoiding the axis deviation caused by the split guide rail, improving the smoothness and stability of the sliding, effectively preventing jamming, and ensuring the straightness and reliability of the cable chain loop wire harness.

[0078] Based on the above embodiments, such as Figure 2 As shown, the locking assembly 4 includes: a sliding seat 41, a threaded rod 42, and a handle rod 43.

[0079] The sliding seat 41 is fixed on the positioning support block 3 and slidably sleeved on the guide rod 22; it is used to connect the locking assembly 4 and the positioning support block 3 into one unit, so that the locking force is applied between the positioning support block 3 and the guide rod 22.

[0080] The threaded rod 42 is threadedly connected to the sliding seat 41, and one end of the threaded rod 42 extends into the sliding seat 41 and can abut against the guide rod 22. It is used to generate axial displacement by rotation. When the end of the threaded rod 42 presses against the guide rod 22, the sliding seat 41 and the positioning block 3 are locked at any position on the guide rod 22 by friction. Reverse rotation releases the pressing force and unlocks the rod.

[0081] The handle 43 is fixed to one end of the threaded rod 42 located outside the sliding seat 41, providing the operator with a handle for applying force, so that the threaded rod 42 can be easily rotated without the need for external tools, making the operation convenient and labor-saving.

[0082] With the above design, the positioning block 3 can be reliably locked in any position of the guide bracket 2. It has a simple structure, strong locking force, and can be operated without tools, with one hand. The adjustment is convenient and quick.

[0083] In some embodiments, such as Figure 3 As shown, the hook assembly 62 includes: a connecting block 621, a hanging component 622, and a hook 623.

[0084] The connecting block 621 is arranged below the traction support plate 5 and serves as an intermediate transition connector to bear the tensile load during the drag chain traction process and transmit the force to the traction support plate 5.

[0085] The two ends of the hanging component 622 are connected to the block 621 and the traction support plate 5 respectively. Flexible ropes, chains, etc. can be used to suspend the connecting block 621 and the hook 623 below the traction support plate 5, so that the hook 623 is in a natural hanging state, which is convenient for hooking with the end of the drag chain.

[0086] One end of the hook 623 is hinged to the side of the connecting block 621 away from the hanging member 622, and the other end is a free hook-shaped end for hooking the end of the cable chain. The hook 623 is connected to the connecting block 621 by hinge, so that the hook 623 can swing freely relative to the connecting block 621 within a certain angle range, which is convenient to automatically adapt to the posture changes of the cable chain during the threading process and avoid jamming or stress concentration caused by rigid connection.

[0087] Specifically, Figure 9 As shown, the hook-shaped end of hook 623 can be inserted into the top gap between two adjacent links of the cable chain, enabling quick connection and disconnection.

[0088] The above design facilitates quick hooking with the end of the cable chain and allows it to swing freely with the cable chain's posture during threading, automatically adapting to the cable chain's movement direction. This avoids jamming or stress concentration caused by rigid connections, improving the smoothness of threading and the reliability of the connection. Furthermore, the structure is simple and the operation is convenient.

[0089] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0090] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A cable chain harness threading device, characterized in that, include: substrate; A guide bracket is fixed to the base plate and extends along a first direction; A positioning support block is slidably mounted on the guide bracket along the first direction; A locking assembly is installed on the positioning block to lock the positioning block to the guide bracket; A traction support plate is slidably disposed on the guide bracket along the first direction and spaced apart from the positioning support block in the first direction; At least one threaded connection unit is located on one side of the guide bracket along a second direction, and the second direction is perpendicular to the first direction; The threading connection unit includes: A wire harness tail clamp is mounted on the positioning block and is used to clamp the tail end of the wire harness. A hook assembly, installed on the traction support plate, is used to hook the end of the cable chain; The docking guide is independently configured, with a clamping section at one end for securing the beginning of the wire harness and a snap-fit ​​section at the other end for engaging with the drag chain guide rail.

2. The cable chain harness threading device according to claim 1, characterized in that, The threading connection unit consists of two units, which are symmetrically arranged on both sides of the guide bracket in the second direction.

3. The cable chain harness threading device according to claim 1, characterized in that, include: A linear drive mechanism is mounted on the bottom of the substrate and extends along a first direction; A transmission plate is mounted on the drive end of the linear drive mechanism; The substrate has a strip-shaped groove extending along the first direction, and the transmission plate passes through the strip-shaped groove and is fixedly connected to the traction support plate.

4. The cable chain harness threading device according to claim 3, characterized in that, The linear drive mechanism includes: An active pulley is rotatably mounted on the bottom of the substrate; The driven pulley is rotatably mounted on the bottom of the substrate and is spaced apart from the driving pulley along the first direction; A synchronous belt is wound around the driving pulley and the driven pulley, and the transmission plate is fixedly connected to one side of the synchronous belt; A drive motor is mounted on the bottom of the base plate and is connected to the drive pulley for transmission.

5. The cable chain harness threading device according to claim 1, characterized in that, The clamping segment includes: The fixing strip has a insertion hole at one end for inserting the head end of the wire harness, and the other end is fixedly connected to the fastening section; and the fixing strip has a placement opening on the peripheral wall at the end away from the fastening section that communicates with the insertion hole. The pressure plate is embedded in the placement opening, with one end hinged to one side of the placement opening and the hinge axis parallel to the axial direction of the fixing strip, and the other end snapped to the other side of the placement opening.

6. The cable chain harness threading device according to claim 1, characterized in that, The fastening section includes: The connecting strip has a fastening hole at one end for inserting the drag chain guide rod, and the other end is fixedly connected to the clamping section; the connecting strip has two oppositely arranged mounting grooves on the peripheral wall at the end away from the clamping section, and both mounting grooves are connected to the fastening hole; A support block is fixedly installed at the bottom of the fastening hole; Two rotating blocks are rotatably disposed in the two mounting slots, and the middle part of each rotating block is hinged to the side wall of the mounting slot, with the hinge axis perpendicular to the axial direction of the mating strip; Two elastic elements correspond one-to-one with the two rotating blocks, with one end of each elastic element abutting against the support block and the other end abutting against the end of the corresponding rotating block near the clamping section, for applying a biasing force to the corresponding rotating block to make it rotate about the hinge axis; The rotating block has a tooth protruding from one end away from the clamping section. The tooth extends into the fastening hole under the biasing pressure of the elastic element.

7. The cable chain harness threading device according to claim 6, characterized in that, The support block has a first limiting groove, the rotating block has a second limiting groove, and the two ends of the elastic element are respectively embedded in the first limiting groove and the second limiting groove.

8. The cable chain harness threading device according to claim 1, characterized in that, The guide bracket includes: Two end plates are fixed to the base plate and arranged at intervals along the first direction; Multiple guide rods are arranged side-by-side at intervals between the two end plates and extend along a first direction; Multiple sliders are slidably fitted onto the guide rod in a corresponding manner and are located at the bottom of the traction support plate; The positioning support block is slidably sleeved on multiple guide rods.

9. The cable chain harness threading device according to claim 8, characterized in that, The locking assembly includes: A sliding seat is fixed to the positioning support block and slidably sleeved on the guide rod; A threaded rod is threadedly connected to the sliding seat, and one end of the rod extends into the sliding seat and can abut against the guide rod. The handle rod is fixed to one end of the threaded rod located outside the sliding seat.

10. The cable chain harness threading device according to claim 1, characterized in that, The hook assembly includes: A connecting block is arranged below the traction support plate; The suspension component is connected at both ends to the connecting block and the traction support plate, respectively. The hook is hinged at one end to the connecting block on the side opposite to the hanging component.

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