Double-sided wire harness assembly bench

Abstract

The present application relates to the technical field of assembly rack, and discloses a double-sided wire harness assembly rack, which comprises a base and an assembly workbench, a plurality of stand columns are fixedly connected to the top of the base, a cross beam is fixedly connected to the top of two stand columns, two assembly workbenches are hingedly connected to the two sides of the cross beam, a hand wheel is arranged on one side of the stand column, a bidirectional screw rod is fixedly connected to one end of the hand wheel, two nut sleeves are threadedly connected to the two ends of the bidirectional screw rod, two push-pull rods are movably connected to the two sides of the two nut sleeves through universal joints, one end of the push-pull rod is movably connected to a connecting seat through a universal joint, and the connecting seat is fixedly connected to the inner side of the assembly workbench. By rotating the hand wheel, the bidirectional screw rod is rotated, the two nut sleeves move linearly in opposite directions along the screw rod, the nut sleeves drive the push-pull rods to move outward through the universal joints, the push-pull rods drive the assembly workbench to rotate outward around the cross beam through the connecting seat, the workbench is unfolded, and the operation requirement is met.

Description

Technical Field

[0001] This invention relates to the field of assembly bench technology, specifically a double-sided wire harness assembly bench. Background Technology

[0002] Wire harness assembly benches are core tooling equipment used for wire harness processing and assembly in manufacturing industries such as automobiles, home appliances, new energy, and electronic equipment. The adaptability and adjustability of their operating surfaces directly affect the operator's comfort, assembly efficiency, and assembly accuracy of the wire harnesses. With the increasing sophistication of the manufacturing industry, wire harness specifications are becoming more diverse, and different operators have different operating habits and postures, leading to a growing demand for flexible adjustment of the assembly bench.

[0003] The traditional wire harness assembly benches currently used in the industry have some technical defects. The workbench of the traditional assembly bench is mostly a one-piece fixed structure with an adjustable tilt angle, which cannot match the height, operating habits and working postures of different workers. Workers are prone to fatigue when working at an unsuitable angle for a long time, which not only reduces assembly efficiency, but may also affect the assembly accuracy of the wire harness due to improper operating posture.

[0004] Therefore, we propose a double-sided wire harness assembly stand to solve the above problems. Summary of the Invention

[0005] To address the technical problem that existing assembly racks are mostly one-piece fixed structures with non-adjustable tilt angles, making them unsuitable for different workers' heights, operating habits, and work postures, this invention provides a double-sided wire harness assembly rack.

[0006] This invention is achieved using the following technical solution: a double-sided wire harness assembly stand, comprising a base and an assembly workbench. Multiple columns are fixedly connected to the top of the base, and a crossbeam is fixedly connected between the tops of two columns. The two assembly workbenches are hinged to both sides of the crossbeam. A handwheel is provided on one side of each column, and a bidirectional lead screw is fixedly connected to one end of the handwheel. Two nut sleeves are threaded to both ends of the bidirectional lead screw. Two push-pull rods are movably connected to both sides of each nut sleeve via universal joints. One end of each push-pull rod is movably connected to a connecting seat via a universal joint, and the connecting seat is fixedly connected to the inner side of the assembly workbench.

[0007] Preferably, a storage cabinet is fixedly connected to the top center of the base, and a placement platform is fixedly connected between the two columns.

[0008] Preferably, one end of the bidirectional lead screw is rotatably connected to the inside of a column via a mounting base, and the other end of the bidirectional lead screw is rotatably connected to the inside of another column via a bearing seat, with the guide rod located below the bidirectional lead screw.

[0009] Preferably, one end of the nut sleeve is fixedly connected to a connecting piece, one side of the connecting piece is fixedly connected to a limiting piece, and the bottom of the limiting piece is fixedly connected to a movable sleeve.

[0010] Preferably, a guide rod is fixedly connected between the two columns, and the movable sleeve is movably connected to the outside of the guide rod.

[0011] Preferably, when the two nut sleeves approach each other, the two assembly worktables close; when the two nut sleeves move away from each other, the two assembly worktables unfold.

[0012] Compared with the prior art, the beneficial effects of the present invention are: In use, rotating the handwheel clockwise drives the bidirectional lead screw to rotate clockwise around the mounting base and bearing seat. Because the threads at both ends of the lead screw rotate in opposite directions, the two nut sleeves move in opposite straight lines along the lead screw. The nut sleeves drive the movable sleeve to slide synchronously along the guide rod, and at the same time push the push-pull rod outward through the universal joint. The push-pull rod pushes the assembly worktable to rotate outward around the crossbeam through the connecting seat, realizing the unfolding of the worktable. The unfolding angle can be infinitely adjusted by rotating the handwheel until it meets the operation requirements. In use, this invention involves rotating the handwheel clockwise to rotate the bidirectional lead screw around the mounting base and bearing seat clockwise. The nut sleeve drives the movable sleeve to slide synchronously along the guide rod, while simultaneously pushing the push-pull rod outward through the universal joint. The push-pull rod pushes the assembly worktable to rotate outward around the crossbeam through the connecting seat, thus unfolding the worktable. The unfolding angle can be steplessly adjusted by rotating the handwheel to suit operational needs and the operating habits of different workers, solving the drawbacks of the fixed angle of traditional assembly tables.

[0013] In use, the invention rotates the handwheel counterclockwise, which drives the bidirectional lead screw to rotate counterclockwise, and the two nut sleeves move in opposite directions along the lead screw; the nut sleeves pull the push-pull rod inward through the universal joint, and the push-pull rod pulls the assembly worktable to rotate inward around the crossbeam through the connecting seat, thereby closing the worktable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembly workbench and crossbeam connection structure of the present invention; Figure 3 This is a schematic diagram of the assembly workbench of the present invention. Figure 4 This is a schematic diagram of the closed structure of the assembly workbench of the present invention; Figure 5 For the present invention Figure 3 Enlarged schematic diagram of part A in the middle.

[0015] In the diagram: 1. Base; 2. Assembly workbench; 3. Column; 4. Crossbeam; 5. Placement platform; 6. Storage cabinet; 7. Handwheel; 8. Two-way lead screw; 9. Nut sleeve; 10. Push-pull rod; 11. Connecting seat; 12. Universal joint; 13. Connecting piece; 14. Limiting piece; 15. Movable sleeve; 16. Guide rod; 17. Mounting seat; 18. Bearing seat. Detailed Implementation

[0016] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0017] Example 1: Please refer to Figure 1 - Figure 5 The double-sided wire harness assembly frame of this embodiment includes a base 1 and an assembly workbench 2. Multiple columns 3 are fixedly connected to the top of the base 1. A crossbeam 4 is fixedly connected to the middle of the top of two columns 3. The two assembly workbenches 2 are respectively hinged to both sides of the crossbeam 4. A handwheel 7 is provided on one side of the column 3. A two-way screw 8 is fixedly connected to one end of the handwheel 7. Two nut sleeves 9 are threaded to both ends of the two-way screw 8. Two push-pull rods 10 are movably connected to both sides of the two nut sleeves 9 through universal joints 12. A connecting seat 11 is movably connected to one end of the push-pull rod 10 through universal joints 12. The connecting seat 11 is fixedly connected to the inner side of the assembly workbench 2. The base 1 serves as the overall load-bearing foundation of the frame, made of high-strength metal, providing excellent structural stability. It distributes the overall weight of the frame, preventing tipping or displacement during use and providing stable installation support for all upper components. The assembly workbench 2 is the core operating surface for wire harness assembly, made of non-slip and wear-resistant sheet metal. Its double-table design allows for simultaneous operation by two people, improving assembly efficiency. The hinged connection allows for flexible adjustment of the tilt angle to suit the operating habits of different workers. The four columns 3 are the vertical support components for the two sets of frames, providing a mounting carrier for transmission components such as the bidirectional lead screw 8 and guide rod 16. The crossbeam 4 is the hinged foundation for the assembly workbench 2, employing an integrated rigid structure to ensure smooth rotation after the two assembly workbench 2 are hinged, while also distributing the operating pressure of the workbench and preventing localized deformation. Handwheel 7 is a manually operated component with an anti-slip textured design, facilitating manual rotation by the operator. It converts circular motion into the rotational power of the bidirectional lead screw 8, enabling tool-free, rapid adjustment. The bidirectional lead screw 8 is the core transmission component, with threads of opposite directions machined at both ends. Its rotation drives two nut sleeves 9 to simultaneously perform linear movements in opposite directions, providing power for adjusting the angle of the assembly workbench 2. The nut sleeves 9 engage with the threads of the bidirectional lead screw 8, converting the screw's rotational motion into its own linear motion. The connecting structures on both sides provide mounting points for the push-pull rod 10, facilitating power transmission. Rod 10 is a power transmission link that connects nut sleeve 9 and assembly worktable 2, converting the linear motion of nut sleeve 9 into the rotational motion of assembly worktable 2 around crossbeam 4, thereby adjusting the angle of the worktable. Universal joint 12 is a movable connecting component that can rotate 360 ​​degrees, compensating for the angular deviation between the linear motion of nut sleeve 9 and the rotational motion of assembly worktable 2, ensuring smooth power transmission without jamming. Connecting seat 11 is a transitional component connecting push-pull rod 10 and assembly worktable 2, increasing the contact area between push-pull rod 10 and the worktable, so that the force is transmitted evenly and avoids localized damage to the worktable. Furthermore, a storage cabinet 6 is fixedly connected to the top center of the base 1, and a placement platform 5 is fixedly connected between the two columns 3. The storage cabinet 6 is a closed storage component for wire harness assembly accessories and tools. The cabinet door design can prevent accessories from being lost or dusty, and realize the orderly storage of tools and accessories, making it convenient for staff to access them at any time. The placement platform 5 is a temporary placement surface for wire harness semi-finished products and assembly auxiliary materials. It is located between the two columns 3 and its height is adapted to the operating height of the staff. It is convenient to temporarily place materials during the assembly process, reduce the round trip time for material retrieval, and improve assembly efficiency. Furthermore, one end of the bidirectional lead screw 8 is rotatably connected to the interior of a column 3 via a mounting base 17, and the other end of the bidirectional lead screw 8 is rotatably connected to the interior of another column 3 via a bearing seat 18. The guide rod 16 is located below the bidirectional lead screw 8. The mounting base 17 serves as an end-positioning support component for the bidirectional lead screw 8, enabling rotational positioning of one end of the lead screw and ensuring that the axis does not deviate during rotation. The bearing seat 18 contains a rolling bearing, providing rotational support for the other end of the bidirectional lead screw 8, significantly reducing frictional resistance during rotation, making the handwheel 7 easier to operate, while also reducing wear on the lead screw and extending its service life. The guide rod 16 serves as a linear motion guide component for the nut sleeve 9, set parallel to the bidirectional lead screw 8, restricting the nut sleeve 9 from rotating synchronously with the lead screw, ensuring it only performs linear motion and guaranteeing transmission accuracy. Furthermore, a connecting piece 13 is fixedly connected to one end of the nut sleeve 9, a limiting piece 14 is fixedly connected to one side of the connecting piece 13, and a movable sleeve 15 is fixedly connected to the bottom of the limiting piece 14; wherein, the connecting piece 13 is a connecting transition component between the nut sleeve 9 and the limiting piece 14, realizing the rigid fixation of the two and ensuring the effective transmission of force, and the movable sleeve 15 is a sliding fit component, which is clearance fit with the guide rod 16, and can slide smoothly along the guide rod 16, thereby realizing the rotational limitation of the nut sleeve 9 in conjunction with the guide rod 16, and at the same time making the movement of the nut sleeve 9 more stable; Furthermore, a guide rod 16 is fixedly connected between the two columns 3, and a movable sleeve 15 is movably connected to the outside of the guide rod 16. The movable sleeve 15 is sleeved on the outside of the guide rod 16 and is linked with the nut sleeve 9. Through the sliding cooperation between the two, the rotational freedom of the nut sleeve 9 is restricted, so that it can only move linearly along the screw axis, ensuring the transmission efficiency and accuracy of the bidirectional screw 8 and avoiding the failure of the worktable adjustment due to the nut sleeve 9 spinning freely.

[0018] Working principle: Place the frame in the designated assembly area of ​​the workshop. The base 1 is in stable contact with the ground, and its own weight ensures the overall stability of the frame without the need for additional fixation. Workers can put the tools and accessories required for wire harness assembly into the storage cabinet 6 in advance, and place the semi-finished products and auxiliary materials on the placement table 5 for easy access during the assembly process. Adjust the tilt angle and opening / closing state of assembly workbench 2 according to the operating habits of the staff or the specifications of the wire harness to be assembled: By rotating the handwheel 7 clockwise, the bidirectional lead screw 8 rotates clockwise around the mounting base 17 and bearing seat 18. Because the threads at both ends of the lead screw rotate in opposite directions, the two nut sleeves 9 move in opposite straight lines along the lead screw. The nut sleeves 9 drive the movable sleeve 15 to slide synchronously along the guide rod 16, and at the same time push the push-pull rod 10 outward through the universal joint 12. The push-pull rod 10 pushes the assembly worktable 2 to rotate outward around the crossbeam 4 through the connecting seat 11, realizing the unfolding of the worktable. The unfolding angle can be infinitely adjusted by rotating the handwheel 7 until it meets the operation requirements. By rotating the handwheel 7 counterclockwise, the double-acting screw 8 is driven to rotate counterclockwise, and the two nut sleeves 9 move in opposite directions along the screw. The nut sleeves 9 pull the push-pull rod 10 inward through the universal joint 12, and the push-pull rod 10 pulls the assembly worktable 2 to rotate inward around the crossbeam 4 through the connecting seat 11, thereby closing the worktable. The tilt angle after closing can be adjusted according to the requirements. During adjustment, the sliding fit between the guide rod 16 and the movable sleeve 15 restricts the rotation of the nut sleeve 9, ensuring that it only makes linear motion; the universal joint 12 compensates for the angular deviation during the movement, so that the power transmission is smooth and without jamming, ensuring that the adjustment operation is easy and precise; After the workbench angle is adjusted to the correct position, the staff can perform wire harness assembly operations on the two assembly workbenches 2 at the same time. The dual-table design enables two people to work together and improves assembly efficiency. During the assembly process, temporary auxiliary materials and semi-finished products can be placed on the placement table 5, and tools and accessories in the storage cabinet 6 can be accessed at any time, reducing the time wasted in material handling. The non-slip workbench surface can prevent wire harnesses and accessories from slipping and improve the stability of the assembly operation. After the wire harness assembly is completed, the workbench can be reset according to the usage requirements: rotate the handwheel 7 counterclockwise to make the two assembly workbench 2 completely close, reduce the space occupied by the frame, and facilitate the organization of the workshop area; if further assembly is required, the adaptation angle of the workbench can be maintained without repeated adjustment. The entire device achieves stepless adjustment of the workbench angle through manual screw drive, adapting to the operating habits of different workers and solving the drawbacks of the fixed angle of traditional assembly benches. The dual workbench hinge design allows for flexible switching between opening and closing, adapting to the assembly space requirements of different wire harness specifications. At the same time, it integrates storage and material placement structures, realizing the integrated and orderly management of tools, accessories, and semi-finished products, greatly improving the efficiency and operating comfort of wire harness assembly, and is suitable for large-scale wire harness assembly operations in the automotive, home appliance, and new energy fields.

[0019] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A double-sided wire harness assembly stand, comprising a base (1) and an assembly workbench (2), characterized in that, The top of the base (1) is fixedly connected to multiple columns (3), and the top of two columns (3) is fixedly connected to a crossbeam (4). The two assembly workbenches (2) are respectively hinged to both sides of the crossbeam (4). A handwheel (7) is provided on one side of the column (3). One end of the handwheel (7) is fixedly connected to a two-way screw (8). The two ends of the two-way screw (8) are threadedly connected to two nut sleeves (9). Both sides of the two nut sleeves (9) are movably connected to two push-pull rods (10) through universal joints (12). One end of the push-pull rod (10) is movably connected to a connecting seat (11) through universal joints (12). The connecting seat (11) is fixedly connected to the inside of the assembly workbench (2).

2. The double-sided wire harness assembly stand according to claim 1, characterized in that, A storage cabinet (6) is fixedly connected to the top center of the base (1), and a placement platform (5) is fixedly connected between the two columns (3).

3. The double-sided wire harness assembly stand according to claim 1, characterized in that, One end of the bidirectional lead screw (8) is rotatably connected to the inside of a column (3) via a mounting base (17), and the other end of the bidirectional lead screw (8) is rotatably connected to the inside of another column (3) via a bearing seat (18). The guide rod (16) is located below the bidirectional lead screw (8).

4. The double-sided wire harness assembly stand according to claim 1, characterized in that, One end of the nut sleeve (9) is fixedly connected to a connecting piece (13), one side of the connecting piece (13) is fixedly connected to a limiting piece (14), and the bottom of the limiting piece (14) is fixedly connected to a movable sleeve (15).

5. The double-sided wire harness assembly stand according to claim 4, characterized in that, A guide rod (16) is fixedly connected between the two columns (3), and the movable sleeve (15) is movably connected to the outside of the guide rod (16).

6. The double-sided wire harness assembly stand according to claim 1, characterized in that, When the two nut sleeves (9) come close to each other, the two assembly worktables (2) close; when the two nut sleeves (9) move away from each other, the two assembly worktables (2) unfold.

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