High-precision shearing equipment for automotive wire harness
By designing a high-precision cutting device for automotive wiring harnesses and utilizing an auxiliary cutting mechanism that combines a rubber wheel with a wiring harness slot, high-precision cutting of automotive wiring harnesses was achieved. This solved the problem of inconsistent wiring harness quality caused by manual cutting and improved cutting efficiency and the consistency of wiring harness quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JIMAO ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-17
AI Technical Summary
In small-scale factories, manual cutting of automotive wiring harnesses makes it difficult to ensure consistent length and end-face quality each time, resulting in inconsistent wiring harness quality. Furthermore, different operators use different cutting techniques and apply different amounts of force, which cannot meet the development needs of lightweight, high integration, and intelligent manufacturing.
A high-precision cutting device for automotive wire harnesses was designed, including an auxiliary cutting mechanism. It utilizes a rubber wheel in conjunction with a wire harness slot and achieves wire harness feeding and straightening through the rotation of multiple first rotating shafts. This ensures that the wire harness is straightened and then precisely cut under the cutting blade, ensuring neat cuts and accurate length.
It achieves high-precision cutting of automotive wiring harnesses, ensuring neat cuts and accurate lengths, improving cutting efficiency and consistency of wiring harness quality, and is applicable to wiring harnesses of different diameters, thus increasing the flexibility of equipment use.
Smart Images

Figure CN224128490U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive wiring harness manufacturing technology, and more specifically, to a high-precision cutting device for automotive wiring harnesses. Background Technology
[0002] Automotive wiring harnesses are a core component of automotive electrical systems, responsible for transmitting electrical energy and signals to ensure the normal operation of various vehicle systems. Through rigorous design, manufacturing, and quality control, automotive wiring harnesses can meet the usage requirements of automobiles in various environments. With the development of automotive technology, automotive wiring harnesses are also continuously evolving towards lightweighting, high integration, intelligence, and environmental friendliness.
[0003] According to the requirements of vehicle manufacturers for automotive wiring harnesses, the automotive wiring harnesses need to be cut into appropriately sized segments. In some small-scale factories, due to cost reasons, they cannot purchase expensive equipment and instead use manual cutting methods. As a result, it is difficult to ensure that the length and end face quality of each cut are consistent, which can easily lead to errors. At the same time, different operators have different cutting techniques and force, which can also lead to inconsistent wiring harness quality. Utility Model Content
[0004] The purpose of this invention is to provide a high-precision cutting device for automotive wiring harnesses to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides a high-precision cutting device for automotive wire harnesses, comprising a worktable, two rectangular uprights symmetrically fixedly connected to the top of the worktable, a support frame at the ends of the two rectangular uprights, the support frame being fixedly connected to the top of the worktable, a cutting tool at the top and bottom of the support frame, the cutting tool being composed of a cylinder and a blade, a cutting table fixedly connected to the top of the bottom of the support frame, the top of the cutting table being set as an inclined surface, an auxiliary cutting mechanism between the two rectangular uprights, the auxiliary cutting mechanism comprising a plurality of first rotating shafts rotatably connected through the inner walls of the two rectangular uprights, a plurality of wire harness clamping grooves evenly formed on the outer walls of the plurality of first rotating shafts, a plurality of vertical guide rails symmetrically fixedly connected to the inner side walls of the two rectangular uprights, the plurality of vertical guide rails being located above the two ends of the first rotating shafts, a horizontal plate slidably connected between the outer walls of the two vertical guide rails, the number of the horizontal plate being the same as the number of the first rotating shafts, a second rotating shaft rotatably connected to the bottom of the horizontal plate, a plurality of rubber wheels evenly fixedly connected to the outer wall of the second rotating shaft, the rubber wheels being located directly above the wire harness clamping grooves.
[0006] As a further improvement to this technical solution, a motor is fixedly connected to the end of the first rotating shaft and to one side of the outer wall of the rectangular vertical plate, and sprockets are sleeved on the outer walls of the ends of multiple first rotating shafts, with chains drivingly connecting the multiple sprockets.
[0007] As a further improvement to this technical solution, the top sidewalls of the two rectangular uprights and directly above the horizontal plate are fixedly connected with the same number of long support plates as the horizontal plate. Several buffer members are evenly fixedly connected to the bottom of the long support plates, and the bottom of the buffer members is fixedly connected to the top of the horizontal plate.
[0008] As a further improvement to this technical solution, the inner sidewalls of the two rectangular upright plates away from the support frame are symmetrically fixed with inserts, and the two inserts are rotatably connected with a rotating shaft. The inner sidewalls of the two rectangular upright plates, located on one side of the rotating shaft, are also rotatably connected with guide rollers.
[0009] As a further improvement to this technical solution, a material collection box is fixedly connected to the outer wall of the top of the support frame and located on one side of the inclined surface of the shearing table.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This high-precision cutting equipment for automotive wiring harnesses includes an auxiliary cutting mechanism. When the automotive wiring harness passes between the rubber wheel and the wiring harness slot, it is positioned inside the slot. The wiring harness is transported by the rotation of multiple first rotating shafts. Simultaneously, when the rubber wheel contacts the surface of the wiring harness, friction causes it to roll on the surface, thus straightening the harness. This straightens the originally curled and uneven wiring harness as it passes between the rubber wheel and the slot, allowing it to be precisely cut as it passes under the cutting blade, ensuring a clean cut and improving the accuracy of the wiring harness length. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 A three-dimensional structural schematic diagram of the relevant components of the auxiliary shearing mechanism of the utility model;
[0014] Figure 3 This is a three-dimensional structural diagram of the relevant components at the pivot of the utility model.
[0015] Figure 4 This is a three-dimensional structural diagram of the relevant components at the shearing table of the utility model.
[0016] The meanings of the labels in the diagram are as follows:
[0017] 1. Workbench; 2. Rectangular upright plate; 3. Support frame; 31. Shearing blade; 32. Shearing table; 4. Auxiliary shearing mechanism; 41. First rotating shaft; 42. Wire harness slot; 43. Vertical guide rail; 44. Horizontal plate; 45. Second rotating shaft; 46. Rubber wheel; 51. Motor; 52. Sprocket; 53. Chain; 61. Long support plate; 62. Buffer; 71. Insert block; 72. Rotating shaft; 73. Guide roller; 81. Collection box. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0020] Example 1
[0021] Please see Figures 1-4 As shown, this embodiment provides a high-precision cutting device for automotive wire harnesses, including a workbench 1. Two rectangular uprights 2 are symmetrically fixedly connected to the top of the workbench 1. Support frames 3 are provided at the ends of the two rectangular uprights 2. The support frames 3 are fixedly connected to the top of the workbench 1. A cutting blade 31 is provided at the top and bottom of the support frame 3. The cutting blade 31 consists of a cylinder and a blade. A cutting table 32 is fixedly connected to the top and bottom of the support frame 3. The top of the cutting table 32 is set as an inclined surface. A collection box 81 is fixedly connected to the outer wall of the top of the support frame 3 and located on one side of the inclined surface of the cutting table 32. The collection box 81 is used to collect the cut automotive wire harnesses. The cutting table 32 can support the automotive wire harnesses to be cut, so that when the cutting blade 31 is running, it can neatly cut the automotive wire harnesses. In addition, the inclined surface of the cutting table 32 makes it easier for the cut automotive wire harnesses to slide into the collection box 81 for easy collection.
[0022] An auxiliary shearing mechanism 4 is provided between two rectangular upright plates 2. The auxiliary shearing mechanism 4 includes several first rotating shafts 41 that are rotatably connected between the inner walls of the two rectangular upright plates 2. Several wire harness slots 42 are evenly provided on the outer walls of the multiple first rotating shafts 41. A motor 51 is fixedly connected to the end of the first rotating shaft 41 and located on one side of the outer wall of the rectangular upright plate 2. A sprocket 52 is sleeved on the outer wall of the end of each of the multiple first rotating shafts 41. A chain 53 is connected between the multiple sprockets 52. The motor 51 is started by a button, so that the output shaft of the motor 51 drives the first rotating shafts 41 and the sprockets 52 to rotate. The sprockets 52 and the chain 53 cooperate to make the multiple first rotating shafts 41 rotate synchronously. When the automotive wire harness passes through the rubber wheel 46 and the wire harness slot 42... During this process, the vehicle wiring harness is located inside the wiring harness slot 42, and the rubber wheel 46 pre-fixes the vehicle wiring harness. Then, the rotation of the first rotating shaft 41 realizes the transportation of the vehicle wiring harness. At the same time, when the rubber wheel 46 contacts the surface of the vehicle wiring harness, the friction causes the rubber wheel 46 to roll on the surface of the vehicle wiring harness, which can straighten the vehicle wiring harness. This allows the originally curled and crooked vehicle wiring harness to be straightened after passing between the rubber wheel 46 and the wiring harness slot 42. Then, when passing under the cutting blade 31, it can be accurately cut, ensuring the neatness of the cut and improving the accuracy of the length of the vehicle wiring harness. Furthermore, this device has multiple wiring harness slots 42, which can simultaneously cut multiple vehicle wiring harnesses, improving the cutting efficiency.
[0023] Two rectangular upright plates 2 have several vertical guide rails 43 symmetrically fixedly connected to their inner sidewalls. These vertical guide rails 43 are located above the ends of the first rotating shaft 41 on both sides. A horizontal plate 44 is slidably connected between the outer walls of the two vertical guide rails 43. The number of horizontal plates 44 is the same as the number of first rotating shafts 41. A second rotating shaft 45 is rotatably connected to the bottom of the horizontal plate 44. Several rubber wheels 46 are uniformly fixedly connected to the outer wall of the second rotating shaft 45, located directly above the wire harness slot 42. Long support plates 61, the same number as the horizontal plates 44, are fixedly connected to the top sidewalls of the two rectangular upright plates 2, directly above the horizontal plate 44. The bottom of the long support plates 61 is uniformly fixedly connected to... Several buffer components 62 are fixedly connected at the bottom to the top of the horizontal plate 44. When encountering a large-diameter automotive wire harness, the top of the automotive wire harness located inside the wire harness slot 42 will press the rubber wheel 46 upward. This causes the rubber wheel 46 to slide upward on the outer wall of the vertical guide rail 43 through the second rotating shaft 45 in conjunction with the horizontal plate 44, and simultaneously press the buffer component 62 in conjunction with the long support plate 61. At the same time, under the rebound action of the buffer component 62, the internal components of the buffer component 62, consisting of springs and limiting components, allow the rubber wheel 46 to fit against the surface of the automotive wire harness, facilitating the straightening of the automotive wire harness. This makes the device suitable for automotive wire harnesses of different diameters, improving the flexibility of use.
[0024] Two rectangular upright plates 2 are symmetrically fixedly connected to the inner walls of their ends away from the support frame 3 with insert blocks 71. A rotating shaft 72 is rotatably connected between the two insert blocks 71. A guide roller 73 is also rotatably connected to the inner walls of the two rectangular upright plates 2 and located on one side of the rotating shaft 72. Before using the device, the rotating shaft 72 is removed from the inside of the two insert blocks 71. Then, multiple automotive wire harness rolls are sequentially placed on the outer wall of the rotating shaft 72. The rotating shaft 72 with the automotive wire harness rolls is then placed back between the two insert blocks 71. This facilitates the rotation of the subsequent automotive wire harness rolls after being pulled on the outer wall of the rotating shaft 72, achieving the purpose of even wire feeding. In conjunction with the guide roller 73, it can guide the automotive wire harness as it passes by, achieving the purpose of feeding the automotive wire harness into the rubber wheel 46 and the wire harness slot 42. At the same time, the rotating shaft 72 is detachable, making the operation more convenient and allowing the operator to add new automotive wire harness rolls in a timely manner after the device is stopped.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-precision shearing device for vehicle wiring harnesses, comprising a worktable (1), characterized in that: The workbench (1) has two rectangular vertical plates (2) symmetrically fixedly connected to its top. Support frames (3) are provided at the ends of the two rectangular vertical plates (2). The support frames (3) are fixedly connected to the top of the workbench (1). Shearing blades (31) are provided at the top and bottom of the support frames (3). The shearing blades (31) consist of a cylinder and a blade. A shearing table (32) is fixedly connected to the top and bottom of the support frames (3). The top of the shearing table (32) is set as an inclined surface. An auxiliary shearing mechanism (4) is provided between the two rectangular vertical plates (2). The auxiliary shearing mechanism (4) includes several first rotating shafts (41) that are rotatably connected between the inner walls of two rectangular upright plates (2). Several wire harness slots (42) are evenly provided on the outer walls of the first rotating shafts (41). Several vertical guide rails (43) are symmetrically fixedly connected to the inner side walls of the two rectangular upright plates (2). The vertical guide rails (43) are located above the two ends of the first rotating shafts (41). A horizontal plate (44) is slidably connected between the outer walls of the two vertical guide rails (43). The number of horizontal plates (44) is the same as that of the first rotating shafts (41). A second rotating shaft (45) is rotatably connected to the bottom of the horizontal plate (44). Several rubber wheels (46) are evenly fixedly connected to the outer wall of the second rotating shaft (45). The rubber wheels (46) are located directly above the wire harness slots (42).
2. The high-precision shearing device for vehicle wire harnesses according to claim 1, characterized in that: A motor (51) is fixedly connected to the end of the first rotating shaft (41) and to one side of the outer wall of the rectangular vertical plate (2). A sprocket (52) is sleeved on the outer wall of the end of each of the first rotating shafts (41). A chain (53) is connected between the sprockets (52).
3. The high-precision shearing device for vehicle wire harnesses according to claim 1, characterized in that: The top sidewalls of the two rectangular upright plates (2) and directly above the horizontal plate (44) are fixedly connected with the same number of long support plates (61) as the horizontal plate (44). The bottom of the long support plates (61) is evenly fixedly connected with a number of buffer members (62), and the bottom of the buffer members (62) is fixedly connected to the top of the horizontal plate (44).
4. The high-precision shearing device for vehicle wire harnesses according to claim 1, characterized in that: Two rectangular upright plates (2) are symmetrically fixedly connected to the inner sidewalls of the ends away from the support frame (3) with inserts (71), and a rotating shaft (72) is rotatably connected between the two inserts (71). A guide roller (73) is also rotatably connected to the inner sidewalls of the two rectangular upright plates (2) and located on one side of the rotating shaft (72).
5. The high-precision shearing device for vehicle wire harnesses according to claim 1, characterized in that: A collection box (81) is fixedly connected to the top outer wall of the support frame (3) and to one side of the inclined surface of the shearing table (32).