A wire harness skinning structure
By setting up multiple grinding mechanisms and using centrifugal force to throw out grinding debris, the problem of uneven grinding caused by the accumulation of grinding debris was solved, achieving comprehensive and uniform grinding of the wire harness surface and stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI TONGLING TAICHENG IND
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-26
AI Technical Summary
The existing grinding molds are prone to causing grinding debris to accumulate when grinding wire harnesses, resulting in uneven grinding and poor results in some areas.
The first coarse grinding mechanism, the second coarse grinding mechanism, the first fine grinding mechanism and the second fine grinding mechanism are all structurally identical. The grinding belts set on the left and right and up and down are used to polish the wire harness. The grinding debris is thrown out by centrifugal force to avoid accumulation.
This process achieves comprehensive and uniform grinding of the wire harness surface, reduces the accumulation of abrasive particles, improves the wear resistance and overall quality of the wire harness, and ensures the continuous operation capability of the equipment.
Smart Images
Figure CN224407245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness processing technology, and in particular to a wire harness abrasion structure. Background Technology
[0002] Automotive wiring harnesses are the main network of automotive circuits. Without wiring harnesses, there would be no automotive circuits. A wiring harness is an assembly that connects circuits by crimping copper contact terminals (connectors) with wires and cables, and then molding an insulator or adding a metal shell on the outside.
[0003] Among them, grinding is an important step in the wire harness production process. The grinding process is a key step to ensure the surface quality of the outer sheath (insulation layer), which directly affects the wear resistance, adhesion and electrical performance of the wire harness.
[0004] A search revealed a Chinese patent document titled "A Polishing Machine for Wire Harness Production" with authorization announcement number CN220481130U. The document describes a process where the wire harness passes through a polishing hole in a ring-shaped mold (which contains a fine polishing section and a coarse polishing section with an annular structure) for rotary polishing. However, during actual polishing, the polishing hole is a relatively closed and narrow space. The long wire harness passing through it occupies most of the space, preventing sufficient space for the abrasive particles to diffuse and dissipate freely. The accumulated abrasive particles fill the spaces between the diamond abrasive particles, hindering sufficient contact between the particles and the outer surface of the long wire harness. This prevents the abrasive particles from effectively polishing the wire harness surface, resulting in uneven polishing and poor polishing in some areas. Therefore, this application provides a wire harness polishing structure to meet this requirement. Utility Model Content
[0005] The purpose of this application is to provide a wire harness grinding structure to solve the technical problem that grinding shavings tend to accumulate in the grinding holes when grinding wire harnesses with existing grinding molds.
[0006] To achieve the above objectives, this application provides the following technical solution: a wire harness abrasion structure, comprising a first coarse grinding mechanism, a second coarse grinding mechanism, a first fine grinding mechanism, and a second fine grinding mechanism arranged sequentially with identical structures;
[0007] The first coarse grinding mechanism includes mounting plates that are symmetrically arranged on the left and right. A large drive wheel and a small rotating wheel are rotatably arranged on both sets of mounting plates. The large drive wheel and the small rotating wheel are connected by a grinding belt with abrasive particles on its surface. The large drive wheel is driven by a rotary motor mounted on the mounting plate.
[0008] The small rotating wheel is mounted on the slider, the slider is slidably connected to the slide block on the mounting plate, and the side end of the slider is connected to the mounting plate through a connecting spring;
[0009] The two sets of large drive wheels on the first coarse grinding mechanism and the first fine grinding mechanism are arranged opposite each other from left to right;
[0010] The two sets of large drive wheels on the second coarse grinding mechanism and the second fine grinding mechanism are arranged vertically opposite each other.
[0011] Coarse grinding particles are provided on the grinding surfaces of the two sets of grinding belts on the first coarse grinding mechanism and the second coarse grinding mechanism;
[0012] Fine abrasive particles are provided on the grinding surfaces of the two sets of grinding belts on the first and second fine grinding mechanisms.
[0013] The wire harness passes sequentially through the grinding gap formed between the two corresponding sets of grinding belts. One end of the wire harness is mounted on the pay-off machine, and the other end is mounted on the take-up machine.
[0014] The wire harness is arranged in a stepped distribution and passes through the grinding gap. This part of the wire harness includes multiple horizontal sections and connecting sections for connecting adjacent horizontal sections. Limiting wheels are provided at the corners where the horizontal sections and the connecting sections are connected. The first coarse grinding mechanism, the second coarse grinding mechanism, the first fine grinding mechanism and the second fine grinding mechanism are arranged in sequence at the positions relative to the horizontal sections of the wire harness.
[0015] During operation, the two sets of grinding belts that are positioned opposite each other move in the same direction.
[0016] In a preferred embodiment of this invention, each set of sliders is provided with two sets of small rotating wheels, which are assembled with the large drive wheel through the grinding belt, and a gap is provided between the two small rotating wheels.
[0017] In a preferred embodiment of this invention, the connecting portion of the wire harness is inclined to the horizontal plane.
[0018] In summary, the technical effects and advantages of this utility model are as follows:
[0019] This utility model has a reasonable structure. Through the sequential arrangement of the first coarse grinding mechanism, the second coarse grinding mechanism, the first fine grinding mechanism, and the second fine grinding mechanism, the grinding belts arranged on the left and right and the top and bottom can be used to polish the wire harness in an all-round way. During the polishing process, the grinding debris generated on the polishing surface can be thrown out by the centrifugal force of the rotating grinding belt, and the grinding debris cannot be accumulated at the polishing point, so as to achieve good polishing of the wire harness.
[0020] 2. In this utility model, two sets of small rotating wheels are provided, so that the grinding belt portion corresponding to the two sets of small rotating wheels can perform surface contact grinding on the same part of the wire harness. Compared with line contact grinding, the contact area between the grinding belt and the wire harness is significantly increased in the surface contact mode, and the pressure distribution is more uniform. It can achieve full coverage grinding of the wire harness surface and avoid the problem of local insufficient or excessive grinding.
[0021] Surface contact distributes pressure over a larger area, reducing localized pressure on the wire harness surface, lowering the risk of scratches and deformation, and improving the wear resistance and overall quality of the wire harness.
[0022] At the same time, it can also perform high-quality polishing of the wire harness even when the wire harness is running at a high speed;
[0023] 3. In this utility model, the wire harness is arranged in a stepped distribution and passes through the grinding gap. The grinding debris is thrown out along the tangential direction of the wire harness placement, which avoids the grinding debris splashing to the adjacent grinding mechanism area, reduces the accumulation of grinding debris across mechanisms, and ensures the continuous operation capability of the equipment. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any effort in developing the invention.
[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 for Figure 1 Schematic diagram of the first rough grinding mechanism;
[0027] Figure 3 This is a schematic diagram showing the operation of the large drive wheel and the direction of grinding debris ejection in the first coarse grinding mechanism and the first fine grinding mechanism;
[0028] Figure 4 This is a schematic diagram showing the operation of the large drive wheel and the direction of grinding debris ejection in the second coarse grinding mechanism and the second fine grinding mechanism.
[0029] In the figure: 1. First coarse grinding mechanism; 101. Mounting plate; 102. Rotary motor; 103. Large drive wheel; 104. Small rotating wheel; 105. Slide block; 106. Slider; 107. Connecting spring; 108. Grinding belt; 2. Second coarse grinding mechanism; 3. First fine grinding mechanism; 4. Second fine grinding mechanism; 5. Limiting wheel; 6. Connecting part; 7. Horizontal part. Detailed Implementation
[0030] 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 making inventive efforts are within the protection scope of the present utility model.
[0031] Example: Reference Figure 1-2 The wire harness abrasion structure shown includes a first coarse grinding mechanism 1, a second coarse grinding mechanism 2, a first fine grinding mechanism 3, and a second fine grinding mechanism 4, which are arranged in sequence with the same structure.
[0032] The first coarse grinding mechanism 1 includes mounting plates 101 that are symmetrical about left and right. A large drive wheel 103 and a small rotating wheel 104 are rotatably mounted on both sets of mounting plates 101. The large drive wheel 103 and the small rotating wheel 104 are connected by a grinding belt 108 with abrasive particles on its surface. The large drive wheel 103 is driven by a rotary motor 102 mounted on the mounting plate 101.
[0033] The small rotating wheel 104 is mounted on the slider 106. The slider 106 is slidably connected to the slide block 105 on the mounting plate 101. The side end of the slider 106 is connected to the mounting plate 101 through the connecting spring 107.
[0034] The two sets of large drive wheels 103 on the first coarse grinding mechanism 1 and the first fine grinding mechanism 3 are arranged in a left-right opposite manner;
[0035] The two sets of large drive wheels 103 on the second coarse grinding mechanism 2 and the second fine grinding mechanism 4 are arranged in a vertically opposite manner.
[0036] Coarse grinding particles are provided on the grinding surfaces of the two sets of grinding belts 108 on the first coarse grinding mechanism 1 and the second coarse grinding mechanism 2.
[0037] Fine abrasive particles are provided on the grinding surfaces of the two sets of grinding belts 108 on the first fine grinding mechanism 3 and the second fine grinding mechanism 4.
[0038] The wire harness passes sequentially through the grinding gap formed between the two corresponding sets of grinding belts 108. One end of the wire harness is installed on the wire feeding machine, and the other end is installed on the winding machine.
[0039] During operation, the two sets of grinding belts 108, which are set opposite to each other, move in the same direction.
[0040] During operation, the wire harness is sequentially passed through the grinding gaps of the first coarse grinding mechanism 1, the second coarse grinding mechanism 2, the first fine grinding mechanism 3, and the second fine grinding mechanism 4. The outer walls of the two sets of grinding belts 108 arranged opposite each other come into contact with the two side walls of the wire harness. The two sets of grinding belts 108, which are arranged horizontally and vertically and contain coarse grinding particles, grind the left and right sides and the top and bottom sides of the wire harness (the large drive wheel 103 drives the grinding belts 108 to run through the friction between the large drive wheel and the grinding belts 108). This can achieve comprehensive coarse grinding of the wire harness. The two sets of grinding belts 108, which are arranged horizontally and vertically and contain fine grinding particles, grind the left and right sides and the top and bottom sides of the wire harness. This can achieve comprehensive fine grinding of the wire harness. During the grinding process, the grinding debris generated on the grinding surface can be thrown out by the centrifugal force of the rotating grinding belts 108. The grinding debris cannot accumulate at the grinding point, thus achieving good grinding of the wire harness.
[0041] It should be noted that: First, each mounting plate 101 is fixed to the base by mounting feet, and the rotary motors 102 mounted on the mounting plates 101 are electrically connected to the controller; Second, during operation, the two sets of grinding belts 108 arranged opposite each other move in the same direction (the direction of movement of the large drive wheel 103 and the direction of grinding debris ejection are as follows). Figure 3 and Figure 4 As shown), the purpose is to make the two sets of grinding belts 108 set opposite to each other grind the wire harness in opposite directions, so that the friction generated on both sides can cancel each other out, which is conducive to the stable grinding of the wire harness; third, the movable setting of the connecting spring 107 and the small rotating wheel 104 makes it convenient to replace the grinding belt 108.
[0042] As a preferred embodiment of this example, Figure 2 As shown, each set of sliders 106 is equipped with two sets of small rotating wheels 104, which are assembled with the large drive wheel 103 through the grinding belt 108, and a gap is provided between the two small rotating wheels 104.
[0043] When the small rotating wheel 104 is set as a group, its grinding belt 108 forms a line contact with the wire harness for grinding. The contact between the grinding belt and the wire harness is a straight line, and the contact area is small, which can easily lead to uneven distribution of grinding force on the surface of the wire harness, resulting in local under-grinding or over-grinding.
[0044] Due to the limited contact area, the amount of grinding on the wire harness by the grinding belt per unit time is small, resulting in low overall grinding efficiency and requiring a longer processing time. In other words, when the wire harness is in contact, high-quality grinding of the wire harness can only be achieved when the winding speed of the wire harness is low.
[0045] Two sets of small rotating wheels 104 are set up so that the grinding belt 108 corresponding to the two sets of small rotating wheels 104 can perform surface contact grinding on the same part of the wire harness. Compared with line contact grinding, the surface contact method significantly increases the contact area between the grinding belt and the wire harness, and the pressure distribution is more uniform. It can achieve full coverage grinding of the wire harness surface and avoid the problem of local insufficient or excessive grinding.
[0046] Surface contact distributes pressure over a larger area, reducing localized pressure on the wire harness surface, lowering the risk of scratches and deformation, and improving the wear resistance and overall quality of the wire harness.
[0047] At the same time, it can also perform high-quality polishing of the wire harness when the wire harness is running at a high speed.
[0048] As a preferred embodiment of this example, Figure 3 As shown, the wire harness is arranged in a stepped distribution and passes through the grinding gap. This part of the wire harness includes multiple horizontal sections 7 and connecting sections 6 for connecting adjacent horizontal sections 7. Limiting wheels 5 are provided at the corners where the horizontal sections 7 and connecting sections 6 are connected. The first coarse grinding mechanism 1, the second coarse grinding mechanism 2, the first fine grinding mechanism 3 and the second fine grinding mechanism 4 are arranged sequentially on the horizontal sections 7 opposite to the wire harness.
[0049] The wire harness is arranged in a stepped distribution and passed through the grinding gap, in accordance with the rotation direction of the major drive wheels 108, as follows: Figure 3 and Figure 4 As shown, the ejected grinding debris is thrown out along the tangential direction of the wire bundle, avoiding the debris from splashing into the area of adjacent grinding mechanisms, reducing the accumulation of grinding debris across mechanisms, and ensuring the continuous operation capability of the equipment.
[0050] It should be noted that the stepped structure of the horizontal part 7 and the connecting part 6, together with the limiting wheel 5, forms a natural channel for the discharge of wear debris and also reduces the adhesion of wear debris to the surface of the wire harness.
[0051] As a preferred embodiment of this example, Figure 3 As shown, the connecting part 6 of the wire harness is inclined to the horizontal plane.
[0052] The design of the inclined connecting part 6 can balance the tension difference between the horizontal transmission section (horizontal part 7) and the inclined section (connecting part 6) of the wire harness, preventing wire harness breakage or loosening of the grinding belt due to sudden tension changes. It is especially suitable for high-speed, high-tension wire harness processing scenarios.
[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wire harness abrasion structure, characterized in that: It includes a first coarse grinding mechanism (1), a second coarse grinding mechanism (2), a first fine grinding mechanism (3), and a second fine grinding mechanism (4) that are arranged in sequence with the same structure; The first coarse grinding mechanism (1) includes mounting plates (101) that are symmetrical about left and right. Both sets of mounting plates (101) are rotatably equipped with a large drive wheel (103) and a small rotating wheel (104). The large drive wheel (103) and the small rotating wheel (104) are connected by a grinding belt (108) with grinding particles on its surface. The large drive wheel (103) is driven by a rotary motor (102) mounted on the mounting plate (101). The small rotating wheel (104) is mounted on the slider (106), the slider (106) is slidably connected to the slide block (105) on the mounting plate (101), and the side end of the slider (106) is connected to the mounting plate (101) through a connecting spring (107). The two sets of large drive wheels (103) on the first coarse grinding mechanism (1) and the first fine grinding mechanism (3) are arranged opposite each other on the left and right; The two sets of large drive wheels (103) on the second coarse grinding mechanism (2) and the second fine grinding mechanism (4) are arranged vertically opposite each other; Coarse grinding particles are provided on the grinding surfaces of the two sets of grinding belts (108) on the first coarse grinding mechanism (1) and the second coarse grinding mechanism (2); Fine abrasive particles are provided on the grinding surfaces of the two sets of grinding belts (108) on the first fine grinding mechanism (3) and the second fine grinding mechanism (4); The wire harness passes sequentially through the grinding gap formed between the two corresponding sets of grinding belts (108), with one end of the wire harness mounted on the pay-off machine and the other end mounted on the take-up machine; The wire harness is arranged in a stepped distribution and passes through the grinding gap. This part of the wire harness includes multiple horizontal parts (7) and connecting parts (6) for connecting adjacent horizontal parts (7). Limiting wheels (5) are provided at the connecting corners of the horizontal parts (7) and the connecting parts (6). The first coarse grinding mechanism (1), the second coarse grinding mechanism (2), the first fine grinding mechanism (3) and the second fine grinding mechanism (4) are arranged in sequence at the positions relative to the horizontal parts (7) of the wire harness. During operation, the two sets of grinding belts (108) arranged opposite to each other move in the same direction.
2. The wire harness abrasion structure according to claim 1, characterized in that: Each set of sliders (106) is provided with two sets of small rotating wheels (104), and both are assembled with the large drive wheel (103) through the grinding belt (108). A gap is provided between the two small rotating wheels (104).
3. The wire harness abrasion structure according to claim 1, characterized in that: The connecting part (6) of the wire harness is inclined to the horizontal plane.