A rubber sleeve expander for processing automobile wire harness
By using a single-motor driven worm gear and bevel gear linkage system, a high-efficiency and energy-saving expansion machine for automotive wiring harness processing has been achieved, solving the problem of power loss caused by the coordination of multiple moving parts and improving maintenance convenience and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANGSHI PINFENG EQUIP MFG CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-07-14
AI Technical Summary
Existing rubber sleeve expansion machines require multiple motorized parts to work together during operation, resulting in significant power consumption and hindering energy conservation and emission reduction.
An expansion machine for automotive wiring harness processing is used. A motor drives four expansion rods to move synchronously away from each other. The worm gear and bevel gear drive the lead screw to rotate, so that the slider moves synchronously in the groove, thereby expanding the rubber sleeve.
This technology enables efficient expansion of the rubber sleeve under single-motor drive, reduces power consumption, improves the ease of maintenance of the device and the stability of the slider in the groove, and meets the requirements of energy conservation and emission reduction.
Smart Images

Figure CN224490061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness processing technology, and in particular to a rubber sleeve expansion machine for automotive wire harness processing. Background Technology
[0002] The ends of automotive wiring harnesses are relatively scattered and large, so rubber sleeves are generally used to tightly bind them together. However, the rubber sleeve needs external force to expand the hole to a certain extent before the wiring harness end can pass through. Then the hole of the rubber sleeve returns to its original position and tightens, thus achieving the purpose of binding the wiring harness.
[0003] The existing patent publication number CN212171301U discloses a rubber sleeve expansion machine, including a worktable, a fixed plate vertically fixed on the worktable, multiple cylinders with cylinder bodies fixed on the fixed plate, and expansion rods driven by the piston rods of the cylinders, with the length direction of the expansion rods being the same as the movement direction of the cylinder piston rods; when the piston rods of the multiple cylinders are in the extended state, the sides of the multiple expansion rods move closer to each other. This utility model expands the rubber sleeve, facilitating the passage of wire harnesses through the rubber sleeve and improving efficiency.
[0004] However, the rubber sleeve expansion machine disclosed in the above patent requires multiple motorized parts to cooperate in order to expand the rubber sleeve, which increases the power consumption of the rubber sleeve expansion machine and is not conducive to energy conservation and emission reduction. Therefore, we propose a rubber sleeve expansion machine for automotive wiring harness processing to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Therefore, the purpose of this utility model is to provide a rubber sleeve expansion machine for automotive wiring harness processing, which can solve the problem that existing rubber sleeve expansion machines require multiple motor parts to cooperate in order to expand the rubber sleeve, thereby increasing the power consumption of the rubber sleeve expansion machine and hindering energy conservation and emission reduction.
[0007] To solve the above technical problems, this utility model provides a rubber sleeve expansion machine for automotive wiring harness processing, which adopts the following technical solution: it includes a box frame, a fixed plate is fixedly installed inside the box frame, a wire-passing hole is fixedly opened in the middle of the fixed plate, four sliding grooves are fixedly opened inside the fixed plate in a ring evenly distributed manner, the sliding grooves and the wire-passing hole are interconnected, a slider is slidably installed inside the sliding groove through a power component, an installation block is installed at the end of the slider through an installation component, and an expansion rod is fixedly installed at the end of the installation block. In the initial state, the four expansion rods are assembled into a round rod;
[0008] The power assembly includes a lead screw, which is rotatably mounted inside a slide groove. The slide block has a threaded hole inside, and the lead screw and the threaded hole cooperate with each other. One end of the lead screw extending into the box frame is fixedly connected to a worm gear. A rotating shaft is rotatably mounted on the side of the fixed plate via a support base. A worm is fixedly mounted in the middle of the rotating shaft, and the worm and the worm gear mesh with each other. Both ends of the rotating shaft are fixedly mounted with bevel gears, and two bevel gears that are close to each other mesh with each other.
[0009] Preferably, a motor is fixedly mounted on the side of the box frame, and the drive end of the motor extends into the interior of the box frame and is fixedly connected to one of the bevel gears.
[0010] Preferably, the mounting assembly includes a slot fixedly disposed inside the slider, the end of the mounting block away from the expansion rod being inserted into the slot, and the slider and the mounting block being fixedly connected by bolts.
[0011] Preferably, the groove and the slider are adapted to each other.
[0012] Preferably, both the box frame and the fixing plate are cubic in shape.
[0013] Preferably, a limiting groove is provided on both sides of the slide groove, and a limiting block is slidably arranged inside the limiting groove, and the limiting block and the slider are fixedly connected.
[0014] Preferably, a base plate is fixedly provided at the bottom of the box frame.
[0015] In summary, this utility model has at least one of the following beneficial effects:
[0016] 1. This utility model enables four expansion rods to expand the rubber sleeve synchronously by installing a single motor, thereby solving the problem that existing rubber sleeve expanders require multiple motorized parts to cooperate in order to expand the rubber sleeve, which increases the power consumption of the rubber sleeve expander and is not conducive to energy conservation and emission reduction.
[0017] 2. By installing the installation components, when the expansion rod breaks or is damaged, first move the four expansion rods away from each other, unscrew the bolts, pull the installation block out of the slot to complete the disassembly of the expansion rod, and then reverse the operation to install the new expansion rod, which improves the convenience of device maintenance.
[0018] 3. By setting the limiting groove and limiting block, the trajectory of the slider's displacement inside the slide groove is limited, further improving the stability of the slider's displacement inside the slide groove. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of a rubber sleeve expansion machine for automotive wiring harness processing according to the present invention;
[0021] Figure 2 This is a schematic diagram of the internal structure of the box frame of this utility model;
[0022] Figure 3 This is a schematic diagram of the power component structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the fixing plate structure of this utility model;
[0024] Figure 5 This is a cross-sectional structural diagram of the installation component of this utility model.
[0025] Explanation of reference numerals in the attached drawings: 1. Box frame; 2. Fixing plate; 3. Threading hole; 4. Slide groove; 5. Sliding block; 6. Mounting block; 7. Expansion rod; 8. Lead screw; 9. Worm gear; 10. Rotating shaft; 11. Worm; 12. Bevel gear; 13. Motor; 14. Base plate; 15. Limiting groove; 16. Limiting block. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-5An embodiment of this utility model is provided: a rubber sleeve expansion machine for automotive wiring harness processing, including a box frame 1, a fixing plate 2 fixedly disposed inside the box frame 1, a wire hole 3 fixedly opened in the middle of the fixing plate 2, four sliding grooves 4 evenly distributed in a ring fixedly disposed inside the fixing plate 2, the sliding grooves 4 and the wire hole 3 are interconnected, a slider 5 is slidably disposed inside the sliding groove 4 through a power component, an mounting block 6 is disposed at the end of the slider 5 through an mounting component, and an expansion rod 7 is fixedly disposed at the end of the mounting block 6. In the initial state, the four expansion rods 7 are assembled into a round rod;
[0028] Furthermore, the power assembly includes a lead screw 8, which is rotatably disposed inside the slide groove 4. The slider 5 has a threaded hole inside, which engages with the lead screw 8. One end of the lead screw 8 extending into the box frame 1 is fixedly connected to a worm gear 9. A rotating shaft 10 is rotatably disposed on the side of the fixed plate 2 via a support base. A worm 11 is fixedly disposed in the middle of the rotating shaft 10, and the worm 11 and the worm gear 9 mesh with each other. Both ends of the rotating shaft 10 are fixedly disposed with bevel gears 12, and two bevel gears 12 that are close to each other mesh with each other. A motor 13 is fixedly disposed on the side of the box frame 1, and the drive end of the motor 13 extends into the box frame 1 and is fixedly connected to one of the bevel gears 12.
[0029] In use, this invention involves placing a rubber sleeve over the outer ring of a circular rod formed by four expansion rods 7. The motor 13 is then started, and through the linkage of the bevel gear 12, the four rotating shafts 10 are synchronously driven to rotate, which in turn synchronously drives the four lead screws 8 to rotate. This causes the four sliders 5 to move synchronously within the groove 4, ultimately expanding the rubber sleeve by displacing the four expansion rods 7 away from each other. The automotive wiring harness is then inserted into the rubber sleeve through the wire hole 3. Once multiple wiring harnesses are inserted into the rubber sleeve, the rubber sleeve and wiring harnesses are removed together, thus completing the constraint of the wiring harnesses by the rubber sleeve. Therefore, this invention expands the rubber sleeve with just one motor 13, solving the problem of existing rubber sleeve expanders requiring multiple motorized parts to expand the rubber sleeve, which increases power consumption and hinders energy conservation and emission reduction.
[0030] After removing the rubber sleeve and wiring harness together, start the motor 13 in reverse so that the four expansion rods 7 are reset and assembled into a round rod, ready for the next processing step.
[0031] Furthermore, the mounting components include slots, which are fixedly installed inside the slider 5. The end of the mounting block 6 away from the expansion rod 7 is inserted into the slot. The slider 5 and the mounting block 6 are fixedly connected by bolts. When the expansion rod 7 is broken or damaged, the four expansion rods 7 are first moved away from each other, the bolts are unscrewed, and the mounting block 6 is pulled out from the slot to complete the disassembly of the expansion rod 7. The new expansion rod 7 can then be installed by reversing the operation, which improves the convenience of device maintenance.
[0032] Furthermore, the slide groove 4 and the slider 5 are adapted to each other. With this configuration, after the lead screw 8 rotates, it can drive the slider 5 to move stably inside the slide groove 4. Limiting grooves 15 are opened on both sides of the slide groove 4. Limiting blocks 16 are slidably installed inside the limiting grooves 15. The limiting blocks 16 are fixedly connected to the slider 5. Through the setting of the limiting grooves 15 and the limiting blocks 16, the stability of the slider 5's displacement inside the slide groove 4 is further improved.
[0033] Furthermore, both the box frame 1 and the fixing plate 2 are cube-shaped.
[0034] Furthermore, a base plate 14 is fixedly installed at the bottom of the box frame 1.
[0035] Working principle: In use, the rubber sleeve is placed on the outer ring of the circular rod formed by the four expansion rods 7. The motor 13 is started, and through the linkage of the bevel gear 12, the four rotating shafts 10 are driven to rotate synchronously, which in turn drives the four lead screws 8 to rotate synchronously. This causes the four sliders 5 to move synchronously inside the groove 4, ultimately causing the four expansion rods 7 to move away from each other and expand the rubber sleeve. The automotive wiring harness is then inserted into the rubber sleeve through the wire hole 3. After multiple wiring harnesses are inserted into the rubber sleeve, the rubber sleeve and wiring harnesses are removed together, thus completing the constraint of the wiring harness by the rubber sleeve. Therefore, this invention can expand the rubber sleeve with the installation of a single motor 13, which is relatively energy-efficient. In addition, if the expansion rod 7 is broken or damaged, the four expansion rods 7 are first moved away from each other, the bolts are unscrewed, and the mounting block 6 is pulled out from the slot to complete the disassembly of the expansion rod 7. Then, the new expansion rod 7 is installed by reversing the operation.
[0036] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A rubber sleeve expansion machine for automotive wiring harness processing, comprising a frame (1), characterized in that: A fixing plate (2) is fixedly installed inside the box frame (1). A wire hole (3) is fixedly opened in the middle of the fixing plate (2). Four sliding grooves (4) are fixedly opened inside the fixing plate (2) in a ring and evenly distributed. The sliding grooves (4) and the wire hole (3) are connected to each other. A slider (5) is slidably installed inside the sliding groove (4) through a power component. An installation block (6) is installed at the end of the slider (5) through an installation component. An expansion rod (7) is fixedly installed at the end of the installation block (6). In the initial state, the four expansion rods (7) are assembled into a round rod. The power assembly includes a lead screw (8), which is rotatably disposed inside the slide groove (4). The slider (5) has a thread hole inside, and the lead screw (8) and the thread hole cooperate with each other. One end of the lead screw (8) that extends into the box frame (1) is fixedly connected to a worm gear (9). The side of the fixed plate (2) is rotatably disposed on a rotating shaft (10) via a support seat. A worm (11) is fixedly disposed in the middle of the rotating shaft (10), and the worm (11) and the worm gear (9) mesh with each other. Both ends of the rotating shaft (10) are fixedly disposed on bevel gears (12), and the two bevel gears (12) that are close to each other mesh with each other.
2. The rubber sleeve expansion machine for automotive wiring harness processing according to claim 1, characterized in that: A motor (13) is fixedly installed on the side of the box frame (1). The drive end of the motor (13) extends into the interior of the box frame (1) and is fixedly connected to one of the bevel gears (12).
3. The rubber sleeve expansion machine for automotive wiring harness processing according to claim 1, characterized in that: The mounting assembly includes a slot that is fixedly disposed inside the slider (5), and the end of the mounting block (6) away from the expansion rod (7) is inserted into the slot. The slider (5) and the mounting block (6) are fixedly connected by bolts.
4. The rubber sleeve expansion machine for automotive wiring harness processing according to claim 3, characterized in that: The groove (4) and the slider (5) are adapted to each other.
5. The rubber sleeve expansion machine for automotive wiring harness processing according to claim 2, characterized in that: Both the box frame (1) and the fixing plate (2) are cube-shaped.
6. The rubber sleeve expansion machine for automotive wiring harness processing according to claim 4, characterized in that: Limiting grooves (15) are provided on both sides of the slide (4), and limiting blocks (16) are slidably arranged inside the limiting grooves (15). The limiting blocks (16) and the slider (5) are fixedly connected.
7. The rubber sleeve expansion machine for automotive wiring harness processing according to claim 5, characterized in that: The bottom of the box frame (1) is fixedly provided with a base plate (14).