Synchronous wire feeding terminal heat shrink tube penetrating mechanism

CN224804424UActive Publication Date: 2026-09-25ZHONGSHAN CHENGSHUN MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202522348042.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-09-25
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

传统穿管工艺多依赖人工操作或单线式自动化设备,存在明显技术短板:人工穿管效率低下、劳动强度大,且易因人为操作误差导致热缩管套设位置偏移、姿态歪斜,影响绝缘保护效果;单线自动化设备仅能单次处理一根热缩管,无法满足多线同步加工的规模化生产需求,单位时间产能受限

Benefits of technology

[0013](1)同步送线式端子热缩管穿管机构,通过五个热缩管固定针可同步定位并固定多根热缩管,其直径与长度根据端子规格定制,能精准适配不同尺寸的端子,确保热缩管在推送过程中保持稳定姿态,避免偏移或脱落。

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Abstract

The novel relates to the technical field of terminal and wire harness processing automation equipment, and discloses a synchronous wire feeding type terminal heat shrink tube penetrating mechanism, which comprises a penetrating assembly, the penetrating assembly contains a shell, a penetrating motor, a threaded rod, a sliding block, a heat shrink tube pushing cylinder, a heat shrink tube pushing block and five heat shrink tube fixing needles.The penetrating motor drives the threaded rod to drive the sliding block to translate, so that the penetrating position is accurately adjusted; the heat shrink tube fixing needles are customized according to terminal specifications, and multiple heat shrink tubes are synchronously fixed; the pushing cylinder pushes the pushing block, and the heat shrink tube is accurately sleeved into the specified position of the wire harness of the crimped terminal along the axial direction.The mechanism realizes multiple wire synchronous penetrating through the cooperation of multiple assemblies, solves the problems of low traditional process efficiency, inaccurate positioning and poor adaptability, improves the penetrating precision and batch production efficiency, adapts to different specifications of terminal and wire harness processing demand, and has strong practicability.
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Description

Technical Field

[0001] This invention relates to the field of automated equipment technology for terminal and wire harness processing, specifically to a synchronous wire feeding terminal heat shrink tubing insertion mechanism. Background Technology

[0002] In the field of terminal and wire harness connection processing, heat shrink tubing installation is a key process to ensure insulation protection and structural stability at the connection. Traditional tubing installation processes mostly rely on manual operation or single-line automated equipment, which has obvious technical shortcomings: manual tubing installation is inefficient, labor-intensive, and prone to human error, resulting in misalignment or skewed placement of the heat shrink tubing, affecting the insulation protection effect; single-line automated equipment can only process one heat shrink tubing at a time, which cannot meet the needs of large-scale production with simultaneous multi-line processing, limiting the output per unit time.

[0003] Meanwhile, existing tube-threading mechanisms suffer from poor adaptability in their positioning and pushing structures. The heat shrink tubing fixing components are mostly of universal specifications, making it difficult to match terminals and heat shrink tubing of different sizes, easily leading to insecure fixing or pushing jams. Furthermore, the tube-threading position adjustment precision is insufficient, failing to accurately adapt to the tube-threading requirements of different wire harness lengths, thus limiting the equipment's versatility. In addition, the poor coordination of the various components' movements easily results in positioning deviations and asynchronous pushing, affecting the consistency of products in mass production and making it difficult to meet the requirements of high-precision and high-efficiency processing. Therefore, this invention proposes a synchronous wire-feeding terminal heat shrink tubing threading mechanism to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a synchronous wire-feeding terminal heat shrink tubing insertion mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a synchronous wire feeding terminal heat shrink tubing insertion mechanism, including a insertion assembly, wherein the insertion assembly is used to synchronously transfer the cut heat shrink tubing to a preset insertion station and accurately fit it onto the designated position of the wire harness with crimped terminals, thereby realizing multi-wire synchronous insertion operation.

[0006] The tube insertion assembly includes a housing, a heat shrink tubing pusher cylinder, and a heat shrink tubing fixing pin. The heat shrink tubing pusher cylinder is used to provide axial thrust, drive the heat shrink tubing to move towards the terminal and complete the sleeve application.

[0007] The heat shrink tubing fixing pin is used to pre-position and fix the heat shrink tubing, ensuring that it maintains a stable posture during the pushing process.

[0008] As a preferred technical solution of this invention, a tube-mounted motor is fixedly connected to one end of the outer shell, and a threaded rod is movably connected inside the outer shell, with the output shaft end of the tube-mounted motor correspondingly connected to the top end of the threaded rod.

[0009] As a preferred technical solution of this invention, a sliding block is movably connected to the outer surface of the threaded rod, and a heat shrink tubing pusher cylinder is fixedly connected to the top protrusion of the sliding block. The heat shrink tubing pusher cylinder pushes the heat shrink tubing into the terminal along the axial direction through a telescopic action.

[0010] As a preferred technical solution of this invention, a heat shrink tubing pusher block is fixedly connected to the output shaft end of the pusher cylinder. The heat shrink tubing pusher block, by bearing the thrust of the pusher cylinder, drives the heat shrink tubing to be precisely fitted into the designated position of the terminal.

[0011] As a preferred technical solution of this invention, the bottom of the heat shrink tubing pusher block is connected to five heat shrink tubing fixing pins. The diameter and length of the five heat shrink tubing fixing pins are customized according to the terminal specifications to adapt to the tube insertion requirements of terminals of different sizes, ensuring that the heat shrink tubing is stably fitted into the terminals.

[0012] Compared with the prior art, the beneficial effects of this new technology are:

[0013] (1) Synchronous wire feeding terminal heat shrink tubing insertion mechanism: Multiple heat shrink tubings can be positioned and fixed simultaneously through five heat shrink tubing fixing pins. The diameter and length are customized according to the terminal specifications, which can accurately adapt to terminals of different sizes, ensuring that the heat shrink tubing maintains a stable posture during the pushing process and avoids deviation or falling off.

[0014] (2) The synchronous wire feeding terminal heat shrink tubing insertion mechanism provides a stable axial thrust through the heat shrink tubing pusher cylinder, and the pusher block evenly transmits the thrust to the heat shrink tubing, so that the heat shrink tubing can be accurately inserted into the designated position of the terminal along the axial direction; the coordinated cooperation between the pusher block and the fixing pin ensures the stability of the pushing force and avoids damage to the heat shrink tubing caused by direct contact, thereby improving the insertion accuracy and yield.

[0015] (3) The synchronous wire feeding terminal heat shrink tubing insertion mechanism drives the threaded rod to rotate through the insertion motor, which drives the sliding block to move smoothly along the axial direction of the threaded rod, thereby realizing the position adjustment of the heat shrink tubing pusher cylinder. This structure can accurately control the lateral displacement of the insertion assembly, adapt to the insertion requirements of wire harnesses of different lengths, enhance the adaptability of the equipment to diversified products, and improve operational flexibility.

[0016] (4) The synchronous wire feeding terminal heat shrink tubing insertion mechanism achieves the synchronous insertion of multiple heat shrink tubings through the multi-line positioning of the insertion component, the precise pushing of the material pusher, and the position adjustment of the drive system. Compared with the single-line processing mode, it greatly improves the unit time production capacity. At the same time, the fully automated mechanical structure reduces manual intervention, reduces insertion deviation caused by human operation error, and ensures the consistency and stability of batch production. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the side structure of this novel invention;

[0018] Figure 2 This is a schematic diagram showing the connection between the push cylinder and the sliding block of this novel heat shrink tubing.

[0019] Figure 3 This is a schematic diagram showing the connection between the novel tube-mounted motor and the threaded rod;

[0020] Figure 4 This is a schematic diagram showing the connection between the heat shrink tubing pusher block and the heat shrink tubing fixing pin of this novel heat shrink tubing.

[0021] In the diagram: 10. Tube insertion assembly; 101. Housing; 102. Tube insertion motor; 103. Threaded rod; 104. Sliding block; 105. Heat shrink tubing pusher cylinder; 106. Heat shrink tubing pusher block; 107. Heat shrink tubing fixing pin. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Please refer to Figure 1-2 The synchronous wire feeding terminal heat shrink tubing insertion mechanism includes a tubing insertion assembly 10, which is used to synchronously transfer the cut heat shrink tubing to a preset tubing insertion station and accurately fit it onto the designated position of the wire harness with crimped terminals, thereby realizing multi-wire synchronous tubing insertion operation.

[0024] The tube insertion assembly 10 includes a housing 101, a heat shrink tubing pusher cylinder 105, and a heat shrink tubing fixing pin 107. The heat shrink tubing pusher cylinder 105 is used to provide axial thrust, drive the heat shrink tubing to move towards the terminal and complete the sleeve application.

[0025] The heat shrink tubing fixing pin 107 is used to pre-position and fix the heat shrink tubing to ensure that it maintains a stable posture during the pushing process.

[0026] Example 2: Based on Example 1, as follows Figure 3-4As shown, a tube-feeding motor 102 is fixedly connected to one end of the outer casing 101, and a threaded rod 103 is movably connected inside it. The tube-feeding motor 102 drives the threaded rod 103 to rotate, causing the sliding block 104 to move smoothly along the axial direction of the threaded rod, thereby adjusting the position of the heat shrink tubing pusher cylinder 105. This structure can precisely control the lateral displacement of the tube-feeding assembly, adapt to the tube-feeding requirements of different lengths of wire harnesses, enhance the adaptability of the equipment to diverse products, and improve operational flexibility. Furthermore, the output shaft end of the tube-feeding motor 102 is correspondingly connected to the top end of the threaded rod 103.

[0027] The outer surface of the threaded rod 103 is provided with a sliding block 104, and the outer surface of the threaded rod 103 is movably connected to the bottom of the sliding block 104. The top protrusion of the sliding block 104 is provided with a heat shrink tubing pusher cylinder 105, and the top protrusion of the sliding block 104 is fixedly connected to the bottom of the heat shrink tubing pusher cylinder 105. The heat shrink tubing pusher cylinder 105 pushes the heat shrink tubing into the terminal along the axial direction through the telescopic action.

[0028] The output shaft end of the pusher cylinder 105 is equipped with a heat shrink tubing pusher block 106, and the output shaft end of the pusher cylinder 105 is fixedly connected to the rear end of the heat shrink tubing pusher block 106. The heat shrink tubing pusher cylinder 105 provides a stable axial thrust, which is then evenly transmitted to the heat shrink tubing through the heat shrink tubing pusher block 106, enabling the heat shrink tubing to be precisely fitted into the designated position of the terminal along the axial direction. The heat shrink tubing pusher block 106, by bearing the thrust of the pusher cylinder, drives the heat shrink tubing to be precisely fitted into the designated position of the terminal.

[0029] The bottom of the heat shrink tubing pusher block 106 is provided with five heat shrink tubing fixing pins 107, and the bottom of the heat shrink tubing pusher block 106 is correspondingly connected to the top of the five heat shrink tubing fixing pins 107. Multiple heat shrink tubings can be simultaneously positioned and fixed through the five heat shrink tubing fixing pins 107. Their diameter and length are customized according to the terminal specifications, accurately adapting to terminals of different sizes, ensuring that the heat shrink tubing maintains a stable posture during the push process, avoiding displacement or detachment, providing a reliable pre-positioning foundation for multi-line synchronous tubing insertion, and improving tubing insertion consistency. The diameter and length of the five heat shrink tubing fixing pins 107 are customized according to the terminal specifications, adapting to the tubing insertion requirements of terminals of different sizes, ensuring that the heat shrink tubing is stably fitted into the terminals.

[0030] The working principle of this new invention is as follows:

[0031] First, after the mechanism is started, the control system of the tubing assembly 10 initializes according to the specifications of the terminal to be processed and the wire harness parameters (such as terminal size, heat shrink tubing length, tubing insertion position, etc.). The operator can preset parameters through the interactive system of the associated equipment to ensure that the displacement stroke of the tubing motor 102, the thrust and extension of the heat shrink tubing pusher cylinder 105, etc., match the actions of each component to the processing requirements;

[0032] After being cut, the heat shrink tubing is transported to the working area of ​​the tubing assembly 10. The five heat shrink tubing fixing pins 107 at the bottom of the heat shrink tubing pusher block 106 are simultaneously inserted into the end of the corresponding heat shrink tubing. By using customized diameter and length to adapt to the inner diameter and terminal specifications of the heat shrink tubing, the precise positioning and stable fixing of multiple heat shrink tubings are achieved, preventing them from tilting, shifting or falling off during subsequent pushing.

[0033] When the tube-threading motor 102 is started, its output shaft drives the threaded rod 103 inside the housing 101 to rotate. The threaded rod 103 and the bottom of the sliding block 104 form a helical transmission, converting the rotational motion of the motor into the linear motion of the sliding block 104. By controlling the rotation angle of the tube-threading motor 102, the sliding block 104 moves axially along the threaded rod 103, driving the top heat shrink tubing pusher cylinder 105, pusher block 106 and fixing pin 107 to move as a whole until the heat shrink tubing reaches the preset lateral position corresponding to the terminal to be threaded, ensuring that the heat shrink tubing and the terminal are coaxially aligned.

[0034] Once the heat shrink tubing is aligned with the terminal, the heat shrink tubing pusher cylinder 105 is activated, extending its output shaft and driving the heat shrink tubing pusher block 106 forward (towards the terminal). The pusher block 106 transmits axial thrust to the heat shrink tubing via the fixing pin 107 at its bottom, causing the heat shrink tubing to move smoothly axially along the guide of the fixing pin, precisely fitting it into the designated position of the crimped terminal on the wire harness (usually the connection point between the terminal and the wire). During the pushing process, the fixing pin 107 continuously maintains the stability of the heat shrink tubing's posture, preventing skewing or misalignment.

[0035] After the heat shrink tubing is installed, the output shaft of the heat shrink tubing pusher cylinder 105 retracts, driving the pusher block 106 and the fixing pin 107 to reset, and the fixing pin 107 is pulled out of the heat shrink tubing; at the same time, the tubing motor 102 rotates in the opposite direction, driving the sliding block 104 to drive the entire pusher mechanism back to the initial position, waiting for the next batch of heat shrink tubing and terminals to be delivered, and entering the next working cycle.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A synchronous wire-feeding terminal heat shrink tubing insertion mechanism, comprising a tubing insertion assembly (10), characterized in that: The tube insertion assembly (10) is used to synchronously transfer the cut heat shrink tubing to the preset tube insertion station and accurately fit it onto the designated position of the wire harness with crimped terminals, so as to realize multi-wire synchronous tube insertion operation. The tube insertion assembly (10) includes a housing (101), a heat shrink tubing pusher cylinder (105), and a heat shrink tubing fixing pin (107). The heat shrink tubing pusher cylinder (105) is used to provide axial thrust, drive the heat shrink tubing to move towards the terminal and complete the insertion. The heat shrink tubing fixing pin (107) is used to pre-position and fix the heat shrink tubing to ensure that it maintains a stable posture during the pushing process.

2. The synchronous wire feeding terminal heat shrink tubing insertion mechanism according to claim 1, characterized in that: One end of the outer shell (101) is fixedly connected to a tube motor (102), and a threaded rod (103) is movably connected inside it, with the output shaft end of the tube motor (102) correspondingly connected to the top end of the threaded rod (103).

3. The synchronous wire feeding terminal heat shrink tubing insertion mechanism according to claim 2, characterized in that: The outer surface of the threaded rod (103) is movably connected to a sliding block (104), and the top protrusion of the sliding block (104) is fixedly connected to a heat shrink tubing pusher cylinder (105). The heat shrink tubing pusher cylinder (105) pushes the heat shrink tubing into the terminal along the axial direction through a telescopic action.

4. The synchronous wire feeding terminal heat shrink tubing insertion mechanism according to claim 3, characterized in that: The output shaft end of the pusher cylinder (105) is fixedly connected to a heat shrink tubing pusher block (106). The heat shrink tubing pusher block (106) drives the heat shrink tubing to be precisely fitted into the designated position of the terminal by bearing the thrust of the pusher cylinder.

5. The synchronous wire feeding terminal heat shrink tubing insertion mechanism according to claim 4, characterized in that: The bottom of the heat shrink tubing pusher block (106) is connected to five heat shrink tubing fixing pins (107). The diameter and length of the five heat shrink tubing fixing pins (107) are customized according to the terminal specifications to adapt to the tube insertion requirements of terminals of different sizes, ensuring that the heat shrink tubing is stably fitted into the terminal.