A wire harness processing turnover rack with positioning and locking function

Abstract

This invention relates to the field of auxiliary equipment technology for wire harness processing, and discloses a wire harness processing turnover rack with positioning and locking function, solving the problems mentioned in the background art. It includes a multi-layer frame structure frame body, a sub-tray movably placed on the frame body, a tapered positioning pin fixed to the frame body, and a locking assembly disposed on the frame body. The bottom of the sub-tray has a tapered positioning hole adapted to the positioning pin, and both ends of the upper surface have contoured positioning grooves for holding the connector housing at the end of the wire harness. The positioning pin is inserted into the positioning hole to achieve horizontal positioning of the sub-tray. In the locking position, the locking assembly presses against the edge of the upper surface of the sub-tray to vertically press it, keeping the positioning pin inserted in the positioning hole; in the release position, it disengages from the sub-tray for removal. This invention achieves precise positioning and reliable locking in wire harness turnover, with high positioning accuracy, convenient operation, and no damage to the wire harness. It can be widely used in the processing turnover and automated docking of various wire harnesses.

Description

Technical Field

[0001] This invention belongs to the technical field of auxiliary equipment for wire harness processing, specifically a wire harness processing turnover rack with positioning and locking function. Background Technology

[0002] During wire harness processing, wire harnesses need to be frequently moved between workstations. Existing turnover methods include ordinary shelf stacking, hook hanging, plastic turnover boxes for separation, and pallet-type turnover racks with positioning pins. However, all of these methods have significant shortcomings: ordinary shelf stacking can easily cause wire harnesses to be squeezed and tangled; hook hanging causes terminals to be subjected to tensile loads for a long time and is prone to falling off; turnover boxes for separation are not suitable for long wire harnesses and the terminal positions are random; while pallet-type turnover racks with positioning pins can achieve a certain degree of positioning, their positioning pins are mostly cylindrical straight pins, which have high resistance to insertion and removal and lack an effective locking mechanism. Transportation bumps can easily cause the positioning pins to fall off. Even if some solutions add locking parts, their pressing points often overlap with the wire harness placement area, posing a risk of damaging the wire harness. At the same time, the lack of a guiding mechanism means that the sub-pallets need to be manually aimed and positioned when pushed in. If not careful, the positioning pins will be hit and damaged. Moreover, the locking operation often requires the use of tools, resulting in low efficiency in picking and placing. It is difficult to meet the comprehensive requirements of assembly line operations for accurate positioning, reliable locking, rapid picking and placing, and damage-free circulation. Summary of the Invention

[0003] To address the above problems, the present invention provides the following technical solution: a wire harness processing turnover rack with positioning and locking function, comprising:

[0004] The vehicle frame body is a multi-layer frame structure;

[0005] At least one set of sub-pallets, the sub-pallets being placed horizontally on the frame body, the bottom of the sub-pallets being provided with positioning holes for secure connection with the frame body, and the two ends of the upper surface of the sub-pallets being provided with contoured positioning grooves for holding the connector housing at the end of the wiring harness;

[0006] The positioning pin has a tapered upper part and is inserted into the positioning hole.

[0007] Multiple sets of locking components are provided on the frame body, and the locking components have a locking position and a releasing position;

[0008] In the locked position, the locking assembly presses against the upper surface edge of the sub-tray, vertically pressing the sub-tray onto the frame body, so that the positioning pin remains inserted in the positioning hole;

[0009] In the released position, the locking assembly disengages from the upper surface of the sub-tray, and the sub-tray can be removed from the frame body.

[0010] Furthermore, the cone angle of the positioning pin is 20° to 30°, and the fitting depth of the positioning pin inserted into the positioning hole is 10mm to 15mm.

[0011] Furthermore, the locking assembly is a cam-type quick clamp, including a base, a connecting rod, a handle, and a pressure head;

[0012] The base is fixed to the side of the vehicle frame body;

[0013] The handle is hinged to the base via the connecting rod;

[0014] The pressure head is fixed to the end of the connecting rod, and the lower surface of the pressure head is provided with an elastic pad layer;

[0015] When the handle is rotated to the horizontal position, the pressure head presses against the upper surface of the sub-tray;

[0016] When the handle is rotated to the vertical position, the pressure head separates from the upper surface of the sub-tray.

[0017] Furthermore, the number of locking components is two, and the two locking components are respectively disposed at diagonal positions of the sub-tray:

[0018] The first locking component is located near the first corner region of the sub-tray;

[0019] The second locking component is located near the second corner region of the sub-tray, which is diagonally opposite to the first corner.

[0020] When locked, the pressure heads of the two locking components press against the two diagonal edges of the sub-tray, and the two pressure points are centrally symmetrical about the geometric center of the sub-tray.

[0021] Furthermore, the orifice of the positioning hole is provided with a tapered flared guide surface, the inner diameter of which gradually decreases from the orifice to the bottom of the hole, and the cone angle is 40° to 60°.

[0022] Furthermore, each layer of the support platform of the vehicle frame body is provided with guide plates on both sides, and the front end of the guide plate is provided with an outward-folding guide structure, the entrance width of the guide structure being greater than the width of the sub-tray.

[0023] Furthermore, it also includes a flexible clamping element, which is disposed on the upper surface of the sub-tray and located between the contour positioning grooves at both ends of the sub-tray;

[0024] The flexible clamping component includes a sponge body and a magnetic component embedded in the bottom of the sponge body. The sub-tray is made of a material that can be magnetically attracted, at least in the area corresponding to the flexible clamping component.

[0025] The flexible clamping component is magnetically attached to the upper surface of the sub-tray, and the sponge body is elastically pressed against the surface of the wire harness.

[0026] Furthermore, the upper surface of the sub-tray is provided with three contour positioning grooves at each end, and the contour positioning grooves at the left and right ends correspond one-to-one. The center distance between two adjacent contour positioning grooves is 25mm to 35mm, and two arc-shaped elastic sheets are arranged opposite each other in the contour positioning groove.

[0027] Furthermore, the top of the frame body is provided with a stacking positioning groove, and the bottom of the frame body is provided with a stacking positioning foot, the stacking positioning groove and the stacking positioning foot are positioned corresponding to each other.

[0028] Furthermore, the bottom of the vehicle frame is equipped with wheels.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The multi-layered frame structure of the chassis, combined with stacking positioning slots and feet, achieves three-dimensional space utilization and multi-layer independent operation. Independently detachable sub-pallets serve as standardized carriers for wire harnesses, allowing for random movement of the harnesses with only one clamping during inter-process transfers, eliminating the hassle of repeated clamping. The guide structure at the front of the guide plate provides coarse guidance to the sub-pallets, while the conical upper part of the positioning pin and the conical flared guide surface of the positioning hole form a double-cone progressive guide, achieving rapid, smooth, and automatic precision alignment. Two cam-type quick-clamping clamps arranged diagonally on the sub-pallets act as locking components, applying a centrally symmetrical vertical clamping force to achieve precise alignment. The tray's six degrees of freedom are fully constrained, ensuring no shifting, jumping, or tilting occurs during turnover. The horizontal locking and vertical release of the handles provide intuitive visual error prevention, and the entire operation requires no tools. The contoured positioning grooves at both ends of the sub-tray provide contoured support for the connector housing, effectively securing and protecting high-value connectors from impacts. A flexible, magnetic clamping element located between the contoured positioning grooves at both ends uses a sponge body to elastically press the wire harness, and its position can be flexibly adjusted, achieving flexible fixation of the wire harness, preventing it from coming loose without damaging the cable. The wheels at the bottom of the frame allow for flexible movement of the entire turnover rack. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0032] Figure 1This is a schematic diagram of the overall axial side structure of a wire harness processing turnover frame with positioning and locking function according to the present invention;

[0033] Figure 2 This is a top-view axial side view of the overall structure of a wire harness processing turnover frame with positioning and locking function according to the present invention;

[0034] Figure 3 This is a schematic diagram of the overall front view of a wire harness processing turnover frame with positioning and locking function according to the present invention;

[0035] Figure 4 For the present invention Figure 3 A magnified view of a portion of point A in the middle;

[0036] Figure 5 This is a schematic diagram of a flexible clamping component structure for a wire harness processing turnover rack with positioning and locking function according to the present invention.

[0037] In the diagram: 1. Frame body; 11. Stacking positioning groove; 12. Stacking positioning foot; 2. Sub-pallet; 21. Positioning hole; 22. Conical positioning groove; 23. Conical flared guide surface; 24. Arc-shaped elastic sheet; 3. Positioning pin; 4. Locking assembly; 41. Base; 42. Connecting rod; 43. Handle; 44. Pressure head; 45. Elastic pad; 5. Guide plate; 51. Guide structure; 6. Flexible clamping component; 61. Sponge body; 62. Magnetic component; 7. Wheels. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] like Figure 1-5 As shown, the present invention provides a wire harness processing turnover rack with positioning and locking function, which mainly includes a frame body 1, a sub-tray 2, a positioning pin 3 and a locking component 4.

[0040] The frame body 1 is a multi-layer frame structure. In this embodiment, the frame body 1 has two support platforms, each capable of holding a set of sub-pallets 2. The frame body 1 is constructed entirely of welded metal square tubing, providing sufficient structural strength and rigidity. The top four corners of the frame body 1 are provided with stacking positioning grooves 11, and the bottom four corners are correspondingly provided with stacking positioning feet 12. The stacking positioning grooves 11 are concave cylindrical grooves, and the stacking positioning feet 12 are convex cylindrical feet; their shapes match to facilitate the stable stacking of multiple frame bodies 1. The bottom of the frame body 1 is also equipped with four wheels 7, two of which are swivel wheels with brakes, and two are directional wheels, facilitating the movement and parking of the turnover rack within the workshop.

[0041] Sub-tray 2 is a rectangular frame structure, horizontally placed on the support platform of the frame body 1. Sub-tray 2 is injection molded from engineering plastics (such as ABS or nylon), making it lightweight while possessing a certain degree of wear resistance and impact resistance. Each of the four corners of the bottom of sub-tray 2 has a positioning hole 21 for mating with the positioning pin 3 on the frame body 1. Three contoured positioning grooves 22 are provided at each of the left and right ends of the upper surface of sub-tray 2, corresponding one-to-one to form three sets of wire harness placement positions. The center distance between two adjacent contoured positioning grooves 22 is 30mm, a spacing that can accommodate the dimensions of commonly used connectors and avoid interference between adjacent connectors. The inner contour of the contoured positioning groove 22 is adapted to the outer contour of the connector shell of a specific model. For example, for HSD (High Speed ​​Data) connectors, the contour of the contoured positioning groove 22 is arc-shaped, with a depth of 1 / 3 to 1 / 2 of the connector shell height. Two arc-shaped elastic pieces 24 are arranged opposite each other in the groove of each contour positioning groove 22. The arc-shaped elastic pieces 24 are integrally injection molded with the sub-tray 2 and have a certain elastic deformation capability. When the connector is inserted into the contour positioning groove 22, the arc-shaped elastic pieces 24 generate elastic deformation and press against the side of the connector shell, which plays a role in assisting clamping and eliminating mating gaps.

[0042] The positioning pins 3 are fixedly installed on the upper surface of each support platform of the frame body 1, and their positions correspond one-to-one with the positioning holes 21 at the bottom of the sub-pallet 2. The lower half of the positioning pin 3 is cylindrical and fixed in the mounting hole of the support platform, while the upper half is conical, with a preferred cone angle of 25°. The total height of the positioning pin 3 is approximately 20mm, and the fitting depth into the positioning hole 21 is 12mm. When the sub-pallet 2 is placed on the support platform, the conical upper half of the positioning pin 3 first enters the positioning hole 21, and the guiding effect of the conical surface guides the sub-pallet 2 to a precise position, achieving horizontal positioning.

[0043] The locking assembly 4 is disposed on the side of the support platform of the frame body 1. In this embodiment, two locking assemblies 4 are disposed on each support platform. The two locking assemblies 4 are located at opposite corners of the sub-tray 2, that is, the first locking assembly is close to the left front corner of the sub-tray 2, and the second locking assembly is close to the right rear corner of the sub-tray 2. The two are centrally symmetrically distributed.

[0044] The locking assembly 4 employs a cam-type quick-release clamp, specifically comprising a base 41, a connecting rod 42, a handle 43, and a pressure head 44. The base 41 is bolted to the side frame of the vehicle body 1. The handle 43 is hinged to the base 41 via the connecting rod 42, forming a four-bar linkage. The pressure head 44 is fixed to the end of the connecting rod 42, and an elastic pad 45 is adhered to the lower surface of the pressure head 44. The elastic pad 45 is made of polyurethane rubber with a Shore A hardness of 60-70.

[0045] When the operator turns the handle 43 downwards to the horizontal position, the four-bar linkage passes the dead point, the pressure head 44 moves downwards and presses against the upper surface edge of the sub-pallet 2, at which point the locking assembly 4 is in the locked position. In the locked position, the pressure head 44 applies a downward clamping force to the sub-pallet 2 through the elastic pad 45. This clamping force vertically presses the sub-pallet 2 against the support platform of the frame body 1, so that the positioning pin 3 is firmly held in the positioning hole 21, and the sub-pallet 2 cannot jump up and down or move horizontally.

[0046] When the operator rotates handle 43 upward to the vertical position, the four-bar linkage drives the pressure head 44 to lift upward and swing outward, completely disengaging the pressure head 44 from the upper surface of the sub-pallet 2. At this time, the locking assembly 4 is in the released position. In the released position, the sub-pallet 2 is no longer subjected to vertical clamping force, and the operator can easily pull the sub-pallet 2 forward or lift it upward from the frame body 1.

[0047] Each support platform of the frame body 1 is equipped with guide plates 5 on both the left and right sides. The guide plates 5 are made of bent sheet metal and extend along the depth of the support platform. The front end of the guide plate 5 (i.e., the end where the operator places and picks up the sub-pallet 2) is provided with an outward-folding guide structure 51. The guide structure 51 extends from the entrance inward, and its entrance width is about 20mm wider than the width of the sub-pallet 2, gradually narrowing to be equal to the width of the sub-pallet 2. When the operator pushes the sub-pallet 2 into the support platform, even if the initial position is slightly deviated, the edge of the sub-pallet 2 will automatically center under the guidance of the guide structure 51, thereby ensuring that the positioning hole 21 can be accurately aligned with the positioning pin 3.

[0048] The turnover rack also includes a flexible clamping component 6. The flexible clamping component 6 is placed on the upper surface of the sub-tray 2, located between the contoured positioning grooves 22 at both ends. The flexible clamping component 6 includes a sponge body 61 and a magnetic component 62 embedded in the bottom of the sponge body 61. The sponge body 61 is rectangular in shape, made of polyurethane sponge with a density of 25 kg / m³ and a compression resilience greater than 90%. The magnetic component 62 is a neodymium magnet, embedded in the bottom of the sponge body 61 near both ends. The sub-tray 2 is made of a material that can be magnetically attracted, for example, by embedding iron sheets in corresponding areas of the upper surface during injection molding, or by using plastic containing magnetic fillers. The flexible clamping component 6 is attracted to the upper surface of the sub-tray 2 by the magnetic component 62, and its position can be adjusted arbitrarily along the length of the sub-tray 2 according to the actual length and direction of the wire harness. After the connectors at both ends of the wire harness are inserted into the contour positioning groove 22, the flexible clamping member 6 is placed above the wire body of the wire harness. The sponge body 61 is slightly compressed, generating an elastic restoring force, thereby gently pressing the wire body of the wire harness onto the surface of the sub-tray 2, preventing the wire harness from coming out of the contour positioning groove 22 due to vibration during turnover.

[0049] Work process:

[0050] First, the operator selects the appropriate sub-tray 2 based on the quantity and model of the wire harnesses to be processed. The processed wire harnesses are placed one by one on the sub-tray 2, and the connector housings at both ends of the wire harness are respectively inserted into the corresponding contoured positioning grooves 22 on the left and right sides. The arc-shaped elastic sheet 24 provides elastic clamping for the connector housings. Then, according to the direction of the wire harness, the flexible clamping member 6 is adsorbed and pressed onto an appropriate position in the middle of the wire harness, allowing the sponge body 61 to gently press the wire harness.

[0051] Next, the operator holds the sub-pallet 2 and aligns it with the entrance of a certain support platform on the frame body 1, and smoothly pushes the sub-pallet 2 in along the guide structure 51 of the guide plate 5. When the sub-pallet 2 is pushed to the bottom, the positioning pin 3 on the support platform inserts into the positioning hole 21 at the bottom of the sub-pallet 2, completing the automatic horizontal positioning.

[0052] Finally, the operator moves the handles 43 of the two locking components 4 located diagonally opposite each other on the sub-pallet 2, rotating the handles 43 from the vertical position to the horizontal position, causing the pressure head 44 to press down on the upper edge of the sub-pallet 2, completing the vertical locking. At this point, the sub-pallet 2 is firmly fixed to the frame body 1, allowing for safe handling and transportation.

[0053] Upon arrival at the destination, the operator moves the handles 43 of the two locking components 4 from the horizontal position back to the vertical position, causing the pressure head 44 to lift and detach from the sub-pallet 2, thus removing the sub-pallet 2 from the frame body 1 and sending it to the next process or for storage.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire harness processing turnover rack with positioning and locking function, characterized in that, include: The frame body (1) is a multi-layer frame structure; At least one set of sub-trays (2), the sub-trays (2) are placed horizontally on the frame body (1), the bottom of the sub-trays (2) is provided with positioning holes (21) for secure connection with the frame body, and the two ends of the upper surface of the sub-trays (2) are provided with contoured positioning grooves (22), the contoured positioning grooves (22) are used to hold the connector housing at the end of the wire harness; Positioning pin (3), the upper half of which is tapered, is inserted into the positioning hole (21); Multiple sets of locking components (4) are provided on the frame body (1), and the locking components (4) have a locking position and a releasing position; In the locked position, the locking component (4) presses against the upper surface edge of the sub-tray (2), vertically pressing the sub-tray (2) onto the frame body (1), so that the positioning pin (3) remains inserted in the positioning hole (21); In the released position, the locking assembly (4) disengages from the upper surface of the sub-tray (2), and the sub-tray (2) can be removed from the frame body (1).

2. The wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: The cone angle of the positioning pin (3) is 20° to 30°, and the fitting depth of the positioning pin (3) into the positioning hole (21) is 10mm to 15mm.

3. A wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: The locking assembly (4) is a cam-type quick clamp, including a base (41), a connecting rod (42), a handle (43) and a pressure head (44). The base (41) is fixed to the side of the frame body (1); The handle (43) is hinged to the base (41) via the connecting rod (42); The pressure head (44) is fixed to the end of the connecting rod (42), and the lower surface of the pressure head (44) is provided with an elastic pad (45). When the handle (43) is rotated to the horizontal position, the pressure head (44) presses against the upper surface of the sub-tray (2); When the handle (43) is rotated to the vertical position, the pressure head (44) separates from the upper surface of the sub-tray (2).

4. A wire harness processing turnover rack with positioning and locking function according to claim 3, characterized in that: The number of locking components (4) is two, and the two locking components (4) are respectively disposed at opposite corners of the sub-tray (2): The first locking component is located near the first corner region of the sub-tray (2); The second locking component is located near the second corner region of the sub-tray (2), which is diagonally opposite to the first corner. In the locked state, the pressure heads (44) of the two locking components (4) press against the two diagonal edges of the sub-tray (2) respectively, and the two pressing points are centrally symmetrically distributed with respect to the geometric center of the sub-tray (2).

5. A wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: The positioning hole (21) has a tapered flared guide surface (23) at its opening. The inner diameter of the tapered flared guide surface (23) gradually decreases from the opening to the bottom of the hole, and its cone angle is 40°~60°.

6. A wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: The frame body (1) has guide plates (5) on both sides of each layer of support platform. The front end of the guide plate (5) has an outward-folding guide structure (51). The entrance width of the guide structure (51) is greater than the width of the sub-tray (2).

7. A wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: It also includes a flexible clamping element (6), which is disposed on the upper surface of the sub-tray (2) and located between the contour positioning grooves (22) at both ends of the sub-tray (2); The flexible clamping member (6) includes a sponge body (61) and a magnetic member (62) embedded in the bottom of the sponge body (61). The sub-tray (2) is made of a material that can be magnetically attracted, at least in the area corresponding to the flexible clamping member (6). The flexible clamping member (6) is magnetically attached to the upper surface of the sub-tray (2), and the sponge body (61) is elastically pressed against the surface of the wire harness.

8. A wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: The upper surface of the sub-tray (2) is provided with three contour positioning grooves (22) at each end. The contour positioning grooves (22) at the left and right ends correspond one to one. The center distance between two adjacent contour positioning grooves (22) is 25mm to 35mm. Two arc-shaped elastic pieces (24) are arranged opposite each other in the contour positioning groove (22).

9. A wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: The top of the frame body (1) is provided with a stacking positioning groove (11), and the bottom of the frame body (1) is provided with a stacking positioning foot (12). The stacking positioning groove (11) and the stacking positioning foot (12) are positioned corresponding to each other.

10. A wire harness processing turnover rack with positioning and locking function according to claim 1, characterized in that: The bottom of the frame body (1) is provided with a traveling wheel (7).

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