A wire harness tube cutting machine

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By setting up pneumatic tubes and ratchet mechanisms, the intermittent and stable feeding and precise cutting of wire harnesses are achieved, solving the problems of unstable feeding and inaccurate cutting in wire harness tube cutting machines, and improving production efficiency and product quality.

CN224574587UActive Publication Date: 2026-07-31HUIZHOU SHENGYOU ELECTRONIC TECH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: HUIZHOU SHENGYOU ELECTRONIC TECH CO LTD
Filing Date: 2025-10-30
Publication Date: 2026-07-31

AI Technical Summary

Technical Problem

Existing wire harness cutting machines lack stable intermittent control during the conveying process, resulting in disordered conveying rhythm and inability to cut at accurate positions, affecting production quality and efficiency.

Method used

The wire harness processing mechanism, which employs pneumatic tubes, movable plates, pawls, ratchet wheels, conveying rollers, and clamping blocks, enables intermittent and stable conveying and precise cutting of wire harnesses. The clamping assembly, consisting of a motor, threaded rod, threaded connecting sleeve, upper roller, and fixed plate, adapts to the clamping requirements of wire harnesses of different thicknesses.

Benefits of technology

It achieves stable intermittent feeding and precise cutting of wire harnesses, improves processing efficiency and the versatility and stability of clamping devices, and reduces defect rate and production cost.

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Abstract

This utility model discloses a wire harness cutting machine, relating to the field of wire harness cutting technology. It includes an operating table, a fixed housing fixedly connected to the top of the operating table, a discharge rack on one side of the fixed housing, a feeding assembly fixedly connected to one side of the fixed housing, a positioning block fixedly connected to the top of the operating table, a clamping assembly fixedly connected to the top of the operating table, and a wire reel fixedly connected to one side of the operating table. This wire harness cutting machine, through a wire harness processing mechanism including a pneumatic pipe, a movable plate, a pawl, a ratchet, a conveying roller, a blade, and a clamping block, achieves intermittent stable conveying and precise cutting of the wire harness. The pneumatic pipe drives the movable plate, which in turn drives the pawl to hook the ratchet, causing the conveying roller to rotate intermittently and compress the wire harness forward. The clamping block prevents the ratchet from reversing, ensuring stable conveying. Simultaneously, the movable plate, in conjunction with the blade, completes the cutting, ensuring the wire harness is cut at the accurate position. The discharge rack further conveys the cut wire harness, improving overall processing efficiency.

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Description

Technical Field

[0001] This utility model relates to the field of wire harness tube cutting technology, specifically a wire harness tube cutting machine. Background Technology

[0002] The wire harness tube cutting machine is an automated device specifically designed for cutting corrugated tubes and round plastic hoses in industries such as automotive wire harnesses. It adopts high-precision PLC control, with a cutting accuracy of ±0.1mm. The equipment is easy to operate and equipped with a touch screen or digital display tube, making the data clear at a glance. The integrated circuit design ensures stable control, simple maintenance, and high cutting efficiency, significantly saving working time. In addition, it is highly safe, producing no sparks or dust during cutting. It is suitable for cutting various tube materials and is widely used in the automotive, electronics, and other fields.

[0003] In existing wire harness cutting machines, there are two major problems that seriously affect production quality and efficiency during actual operation. First, the wire harness conveying lacks stable intermittent control. During the conveying process, the wire harness is difficult to stop and move forward precisely according to the preset rhythm, resulting in disordered conveying rhythm. Sometimes the pause is too long, affecting the production speed, and sometimes the pause is insufficient, making it difficult to connect subsequent operations. Second, it is impossible to cut at the accurate position. Due to the lack of a precise positioning and control mechanism, the wire harness cannot be guaranteed to be cut at the precise position every time it reaches the designated cutting point, resulting in inconsistent wire harness lengths, which seriously affects product quality and increases the defect rate and production costs. Therefore, we need a wire harness cutting machine. Utility Model Content

[0004] The purpose of this invention is to provide a wire harness cutting machine to solve the problems mentioned in the background art, such as the lack of stable intermittent control in existing wire harness delivery and the inability to cut at accurate positions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wire harness cutting machine, comprising an operating table, a fixed shell fixedly connected to the top of the operating table, a discharge rack provided on one side of the fixed shell, a feeding assembly fixedly connected to one side of the fixed shell, a positioning block fixedly connected to the top of the operating table, a clamping assembly fixedly connected to the top of the operating table, a wire reel fixedly connected to one side of the operating table, a wire harness disposed inside the wire reel, the feeding assembly including a locking block hinged to one side of the fixed shell, a ratchet engaged at one end of the locking block, a conveying roller fixedly connected inside the ratchet, a sliding sleeve fixedly connected to the outer wall of the conveying roller, a pawl engaged at one side of the ratchet, a movable plate hinged to the top of the pawl, a blade fixedly connected to the bottom of the movable plate, and a pneumatic tube fixedly connected to one side of the movable plate.

[0006] Preferably, the pneumatic tube forms a linkage structure with the blade through a movable plate, and one end of the pneumatic tube is connected to one side of the movable plate, and the bottom of the movable plate is connected to the top of the blade.

[0007] Preferably, the pawl forms an intermittent motion structure with the conveying roller via a ratchet, and one end of the pawl is engaged in the tooth groove of the ratchet, and the outer wall of the conveying roller is connected to the inner wall of the ratchet.

[0008] Preferably, the conveying roller forms an engaging structure with the ratchet and the locking block, and the outer wall of the conveying roller is connected to the inner wall of the ratchet, and one end of the locking block is engaged in the tooth groove of the ratchet.

[0009] Preferably, the clamping assembly includes a fixing plate, which is fixed to the top of the operating table. A lower roller is fixedly connected inside the fixing plate, and an upper roller is slidably connected inside the fixing plate. A threaded connecting sleeve is fixedly connected to the outer wall of the upper roller, and a threaded rod is threadedly connected inside the threaded connecting sleeve. One end of the threaded rod is fixedly connected to the output shaft of a motor.

[0010] Preferably, the motor forms a threaded structure through a threaded rod and a threaded connecting sleeve, with one end of the threaded rod threaded through the threaded connecting sleeve for connection, and the other end of the threaded rod connected to the output end of the motor.

[0011] Preferably, the threaded connecting sleeve forms a clamping structure through an upper roller and a lower roller, and the outer wall of the upper roller is connected to the inner wall of the threaded connecting sleeve, and the lower roller is located at the bottom of the upper roller.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In the scheme of this application: 1. To address the issues of unstable intermittent control and inability to cut wire harnesses at precise locations in existing technologies, this application proposes a wire harness processing mechanism comprising a pneumatic tube, a movable plate, a pawl, a ratchet, a conveyor roller, a blade, and a clamping block. This mechanism enables stable intermittent conveying and precise cutting of the wire harness. The pneumatic tube drives the movable plate, which in turn drives the pawl to hook the ratchet, causing the conveyor roller to rotate intermittently and compress the wire harness forward. The clamping block prevents the ratchet from reversing and ensures stable conveying. Simultaneously, the movable plate, in conjunction with the blade, completes the cutting, ensuring that the wire harness is cut at the precise location. The discharge rack further conveys the cut wire harness, thereby improving overall processing efficiency. 2. To address the problem that existing wire harness clamping devices are difficult to adapt to wire harnesses of different thicknesses and are inconvenient to adjust, this application provides a clamping assembly comprising a motor, a threaded rod, a threaded connecting sleeve, an upper roller, and a fixing plate with a lower roller fixed thereon. This assembly effectively clamps wire harnesses of different thicknesses. The motor drives the threaded rod to rotate, which in turn moves the threaded connecting sleeve and the upper roller, cooperating with the lower roller to complete the clamping action. This not only improves the versatility and adaptability of the clamping device but also ensures the stability and reliability of the clamping. Furthermore, it is easy to operate and improves work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the fixed shell and discharge rack structure of this utility model; Figure 3 This is a schematic diagram of the feeding assembly structure of this utility model; Figure 4 This is a schematic diagram of the clamping component structure of this utility model.

[0014] In the diagram: 1. Control panel; 2. Fixed housing; 3. Discharge rack; 4. Feeding assembly; 401. Clamping block; 402. Ratchet; 403. Conveyor roller; 404. Sliding sleeve; 405. Pawl; 406. Movable plate; 407. Blade; 408. Pneumatic tube; 5. Positioning block; 6. Clamping assembly; 601. Fixed plate; 602. Lower roller; 603. Upper roller; 604. Threaded connecting sleeve; 605. Threaded rod; 606. Motor; 7. Wire reel; 8. Wire harness. Detailed Implementation

[0015] 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.

[0016] This utility model embodiment provides a wire harness tube cutting machine, such as Figure 1 , Figure 2 and Figure 3As shown, the system includes an operating table 1, a fixed housing 2 fixedly connected to the top of the operating table 1, a discharge rack 3 provided on one side of the fixed housing 2, a feeding assembly 4 fixedly connected to one side of the fixed housing 2, a positioning block 5 fixedly connected to the top of the operating table 1, a clamping assembly 6 fixedly connected to the top of the operating table 1, a wire reel 7 fixedly connected to one side of the operating table 1, a wire harness 8 provided inside the wire reel 7, and a clamping block 401 hinged to one side of the fixed housing 2. A ratchet 402 is engaged with one end of the clamping block 401, a conveying roller 403 is fixedly connected inside the ratchet 402, a sliding sleeve 404 is fixedly connected to the outer wall of the conveying roller 403, a pawl 405 is engaged with one side of the ratchet 402, and a movable plate is hinged to the top of the pawl 405. 406. A blade 407 is fixedly connected to the bottom of the movable plate 406, and a pneumatic pipe 408 is fixedly connected to one side of the movable plate 406. When the pneumatic pipe 408 is activated, it pushes the movable plate 406 to move, which in turn causes the movable plate 406 to move the pawl 405. As the pawl 405 moves upward, it hooks the ratchet 402, which causes the ratchet 402 to rotate intermittently. The ratchet 402 then causes the conveyor roller 403 to rotate intermittently. The conveyor roller 403 squeezes the wire harness 8, which causes the wire harness 8 to move forward intermittently. The locking block 401 engages in the tooth groove of the ratchet 402 to prevent the ratchet 402 from rotating in the opposite direction, thus ensuring the stability of the conveying. At the same time, the movable plate 406 drives the blade 407 to cut the wire harness 8, so that the wire harness 8 is cut at the accurate position.

[0017] Furthermore, such as Figure 3 As shown, the pneumatic tube 408 forms a linkage structure with the blade 407 through the movable plate 406, and one end of the pneumatic tube 408 is connected to one side of the movable plate 406, and the bottom of the movable plate 406 is connected to the top of the blade 407. Through the pneumatic tube 408, the pneumatic tube 408 can push the movable plate 406 to move, which can cause the movable plate 406 to drive the blade 407 to perform shearing.

[0018] Furthermore, such as Figure 3 As shown, the pawl 405 forms an intermittent motion structure with the conveyor roller 403 via the ratchet 402, and one end of the pawl 405 is engaged in the tooth groove of the ratchet 402. The outer wall of the conveyor roller 403 is connected to the inner wall of the ratchet 402. With the pawl 405, the ratchet 402 can be hooked and moved during the upward movement of the pawl 405, so that the ratchet 402 rotates intermittently.

[0019] Furthermore, such as Figure 3As shown, the conveying roller 403 forms an engaging structure with the ratchet 402 and the locking block 401, and the outer wall of the conveying roller 403 is connected to the inner wall of the ratchet 402. One end of the locking block 401 is engaged in the tooth groove of the ratchet 402. By setting the locking block 401, the locking block 401 can engage with the tooth groove of the ratchet 402 to prevent the ratchet 402 from rotating in the opposite direction.

[0020] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the clamping assembly 6 includes a fixed plate 601, which is fixed to the top of the operating table 1. A lower roller 602 is fixedly connected inside the fixed plate 601, and an upper roller 603 is slidably connected inside the fixed plate 601. A threaded connecting sleeve 604 is fixedly connected to the outer wall of the upper roller 603. A threaded rod 605 is threadedly connected inside the threaded connecting sleeve 604. One end of the threaded rod 605 is fixedly connected to the output shaft of the motor 606. First, the wire harness 8 is led out from the wire reel 7 and fixed by the clamping assembly 6. The motor 606 is started to drive the threaded rod 605 to rotate, which pushes the threaded connecting sleeve 604 to move. The threaded connecting sleeve 604 drives the upper roller 603 to move, so that the upper roller 603 cooperates with the lower roller 602 fixed in the fixed plate 601 to clamp the wire harness 8, thereby completing the clamping of wire harnesses 8 of different thicknesses.

[0021] Furthermore, such as Figure 4 As shown, the motor 606 forms a threaded structure with the threaded rod 605 and the threaded connecting sleeve 604. One end of the threaded rod 605 is threaded through the threaded connecting sleeve 604 and connected, while the other end of the threaded rod 605 is connected to the output end of the motor 606. The motor 604 can drive the threaded rod 605 to rotate, and push the threaded connecting sleeve 606 through the threaded connecting sleeve 606.

[0022] Furthermore, such as Figure 4 As shown, the threaded connecting sleeve 604 forms a clamping structure through the upper roller 603 and the lower roller 602. The outer wall of the upper roller 603 is connected to the inner wall of the threaded connecting sleeve 604, and the lower roller 602 is located at the bottom of the upper roller 603. Through the threaded connecting sleeve 604, the threaded connecting sleeve 604 can drive the upper roller 603 to move, and the lower roller 602 is used to clamp the wire harness 8.

[0023] Working principle: First, the wire harness 8 is drawn out from the wire reel 7 and fixed by the clamping assembly 6. The motor 606 is started, driving the threaded rod 605 to rotate. This rotation pushes the threaded connecting sleeve 604 to move, which in turn moves the upper roller 603. The upper roller 603 engages with the lower roller 602 fixed in the fixing plate 601 to clamp the wire harness 8, thus clamping wire harnesses of different thicknesses. The positioning block 5 provides positioning for the wire harness 8, allowing it to move within the channel between the positioning blocks 5 and preventing it from shifting. The feeding assembly 4 is responsible for conveying the wire harness 8. The pneumatic tube 408 pushes the movable plate 406 to move, which in turn causes the movable plate 406 to move the pawl 405. As the pawl 405 moves upward, it hooks the ratchet 402, causing the ratchet 402 to rotate intermittently. This causes the ratchet 402 to drive the conveyor roller 403 to rotate intermittently as well. The conveyor roller 403 squeezes the wire harness 8, causing the wire harness 8 to move forward intermittently. The locking block 401 engages with the tooth groove of the ratchet 402 to prevent the ratchet 402 from rotating in the opposite direction, ensuring the stability of the conveying. At the same time, the movable plate 406 drives the blade 407 to cut the wire harness 8, ensuring that the wire harness 8 is cut at the correct position. The discharge rack 3 is used to convey the cut wire harness 8.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A harness pipe cutting machine comprising an operating table (1), characterized in that: A fixed housing (2) is fixedly connected to the top of the operating table (1). A discharge rack (3) is provided on one side of the fixed housing (2). A feeding assembly (4) is fixedly connected to one side of the fixed housing (2). A positioning block (5) is fixedly connected to the top of the operating table (1). A clamping assembly (6) is fixedly connected to the top of the operating table (1). A wire reel (7) is fixedly connected to one side of the operating table (1). A wire harness (8) is provided inside the wire reel (7). The feeding assembly (4) includes a locking block (401), and the locking block (401) is hinged to... On one side of the fixed housing (2), one end of the locking block (401) is engaged with a ratchet (402), the inside of the ratchet (402) is fixedly connected with a conveying roller (403), the outer wall of the conveying roller (403) is fixedly connected with a sliding sleeve (404), one side of the ratchet (402) is engaged with a pawl (405), the top of the pawl (405) is hinged with a movable plate (406), the bottom of the movable plate (406) is fixedly connected with a blade (407), and one side of the movable plate (406) is fixedly connected with a pneumatic tube (408).

2. A wire harness pipe cutting machine according to claim 1, characterized by: The pneumatic tube (408) forms a linkage structure with the blade (407) through the movable plate (406), and one end of the pneumatic tube (408) is connected to one side of the movable plate (406), and the bottom of the movable plate (406) is connected to the top of the blade (407).

3. A wire harness pipe cutting machine according to claim 1, characterized by: The pawl (405) forms an intermittent motion structure with the conveyor roller (403) via the ratchet (402), and one end of the pawl (405) is engaged in the tooth groove of the ratchet (402), and the outer wall of the conveyor roller (403) is connected to the inner wall of the ratchet (402).

4. A wire harness pipe cutting machine according to claim 1, characterized by: The conveying roller (403) forms an engaging structure with the locking block (401) via a ratchet (402), and the outer wall of the conveying roller (403) is connected to the inner wall of the ratchet (402), and one end of the locking block (401) is engaged in the tooth groove of the ratchet (402).

5. A wire harness pipe cutting machine according to claim 1, characterized by: The clamping assembly (6) includes a fixing plate (601) and the fixing plate (601) is fixed to the top of the operating table (1). A lower roller (602) is fixedly connected inside the fixing plate (601), and an upper roller (603) is slidably connected inside the fixing plate (601). A threaded connecting sleeve (604) is fixedly connected to the outer wall of the upper roller (603). A threaded rod (605) is threadedly connected inside the threaded connecting sleeve (604), and one end of the threaded rod (605) is fixedly connected to the output shaft of a motor (606).

6. A wire harness pipe cutting machine according to claim 5, characterized by: The motor (606) forms a threaded structure with a threaded rod (605) and a threaded connecting sleeve (604). One end of the threaded rod (605) is threaded through the threaded connecting sleeve (604) for connection, and the other end of the threaded rod (605) is connected to the output end of the motor (606).

7. A wire harness pipe cutting machine according to claim 5, characterized by: The threaded connecting sleeve (604) forms a clamping structure through the upper roller (603) and the lower roller (602), and the outer wall of the upper roller (603) is connected to the inner wall of the threaded connecting sleeve (604), and the lower roller (602) is located at the bottom of the upper roller (603).