Self-coiling braided tube penetrating tool

Abstract

The utility model discloses a pipe penetrating tool for a self-coiling braided pipe. The pipe penetrating tool comprises a mounting seat, a sleeve and a connecting column, the mounting seat is fixedly arranged; the front end of the sleeve is provided with a conical pipe penetrating part, the rear end of the sleeve is provided with a connecting hole matched with the pipe diameter of a wire harness to be processed, and the wire harness to be processed is connected with the sleeve by being oppositely inserted into the connecting hole; and one end of the connecting column is fixedly connected with the mounting seat, and the other end of the connecting column is fixedly connected with the sleeve and is arranged in the radial direction of the sleeve, so that when the conical pipe penetrating part penetrates through the self-coiling braided pipe, the two free edges of the self-coiling braided pipe are automatically separated. According to the utility model, the rapid connection with the wire harness of the self-coiling braided tube to be penetrated and the rapid insertion into the braided tube are realized through the sleeve, the overall structural design is simple, the tube penetration step of the self-coiling braided tube is simplified, and the tube penetration efficiency is improved.

Description

A self-winding braided tube insertion tool Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for wire harness processing, and in particular to a tooling for inserting self-winding braided tubes. Background Technology

[0002] Self-curling braided tubing is a type of fabric that forms a sleeve through braiding. Its structure is illustrated in Chinese Invention Patent No. CN101390264B, which discloses a self-curling braided tubing comprising at least three warp-knitted yarns. One of the weft stitches is woven under tension using a single-fiber Tricket stitch to bend the fabric into a self-curling structure around a central space. This single fiber forms the inner surface of the sleeve and has two free edges. This sleeve is used to contain and protect slender items and is commonly used in wire harnesses.

[0003] In traditional processing methods, self-winding braided tubing is mostly threaded onto the wire harness manually, requiring a significant amount of manpower. Chinese utility model patent CN 206789363 U discloses a fixture for threading self-winding braided tubing, including a handle connected to a threading head. The threading head has threading tips at both ends, with a pass-through groove at the bottom of each tip. A connector groove is provided on the side wall of any one of the threading tips, communicating with the pass-through groove. One end of the wire harness connector passes through the pass-through groove, and the connector of the other end of the wire harness connector is held in the connector groove. The size of the connector groove gradually increases in the direction away from the pass-through groove. In use, one end of the wire harness connector is first inserted into the pass-through groove, and the connector of the other end of the wire harness connector is inserted into the connector groove. Then, the threading tip of the threading head is used to push the wire into the hollow tube of the self-winding braided tubing. The threading operation is completed by pulling the fixture with the handle. While this fixture improves the efficiency of self-winding braided tubing insertion and reduces the difficulty of the operation to some extent, the process of picking the threading tip into the self-winding braided tubing itself involves a certain amount of work, which restricts the overall insertion efficiency. Therefore, a new insertion tool needs to be designed to simplify the insertion steps of self-winding braided tubing. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-winding braided tube threading tool, thereby simplifying the threading process of self-winding braided tubes and improving threading efficiency.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] A self-winding braided tube insertion tool includes a mounting base, a sleeve, and a connecting post. The mounting base is fixedly installed. The front end of the sleeve has a tapered insertion section, and the rear end has a connecting hole adapted to the diameter of the wire harness to be processed. The wire harness to be processed is inserted into the connecting hole and connected to the sleeve. One end of the connecting post is fixedly connected to the mounting base, and the other end is fixedly connected to the sleeve. The connecting post is arranged radially along the sleeve so that when the tapered insertion section passes through the self-winding braided tube, it automatically separates the two free sides of the self-winding braided tube.

[0007] Furthermore, the width of one end of the tapered through-tube near the connecting post is smaller than the width of the other end.

[0008] Furthermore, the front end of the tapered tube section is provided with a smooth spherical surface or platform, and the outer periphery of the platform is rounded.

[0009] Furthermore, the taper of the tapered tube section is 10–20°.

[0010] Furthermore, the diameter of the connecting hole is D1, the depth is H, the diameter of the wire harness is D2, and D1 = D2 + 0.1 mm, H = (2 ~ 3)D2.

[0011] Furthermore, it also includes a base plate, one end of which is fixedly mounted on the mounting base, and the other end of which is provided with a limiting seat along the axial direction of the sleeve. The limiting seat contacts the end of the wire harness to be processed away from the sleeve to restrict the wire harness from moving toward the end away from the sleeve.

[0012] Furthermore, the limiting seat is a U-shaped seat with its opening facing the sleeve, and a connector is fixedly connected to one end of the wire harness away from the sleeve. The two sides of the U-shaped seat extend at least to the middle of the connector to restrict the horizontal movement of the connector along an axis perpendicular to the sleeve.

[0013] Furthermore, the limiting seat is adjustablely mounted on the base plate along the axial direction of the sleeve.

[0014] Furthermore, the U-shaped seat has strip grooves extending along the length of the wire harness on both sides, and bolts that are tightened onto the base plate are provided in the strip grooves.

[0015] Furthermore, the mounting base includes a base and a mounting plate that are detachably fixed together by screws. The base is fixed to the base plate by screws, and the two ends of the connecting column are respectively connected to the mounting plate and the sleeve by laser welding process.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] (1) This utility model achieves quick connection with the wire harness to be threaded through the self-winding braided tube by setting a sleeve with a connecting hole at the rear end. At the same time, a tapered tube-threading part is provided at the front end of the sleeve to facilitate insertion into the braided tube and reduce the resistance during the threading process. In addition, by setting a connecting post, the connection between the sleeve and the mounting base is realized. At the same time, the two free sides of the self-winding braided tube can be automatically separated during the threading process to avoid the self-winding braided tube being too large and causing difficulties in threading. The overall structure design is simple, simplifies the threading steps of the self-winding braided tube, and improves the threading efficiency.

[0018] (2) The front end of the connecting post of this utility model is narrower than the rear end along the tube insertion direction, which reduces the insertion resistance when separating the two free sides, making the insertion of the self-winding braided tube smoother.

[0019] (3) By setting a spherical surface or platform at the front end of the tapered tube section, this utility model avoids the formation of sharp corners that could scratch operators, thus improving safety and preventing scratches on the inner wall of the self-winding braided tube.

[0020] (4) By limiting the taper, this utility model ensures strong guidance, making it easy for the front end to enter the self-winding braided tube, while also having low friction, thus improving tube insertion efficiency.

[0021] (5) By limiting the size of the connection hole, this utility model facilitates the insertion of the wire harness while making it difficult for the wire harness to come out of the sleeve, thus ensuring the success rate of the wire harness insertion.

[0022] (6) By setting a limiting seat, this utility model limits the other end of the wire harness to prevent the wire harness from moving backward when passing through the tube, thereby further improving the success rate of passing through the tube.

[0023] (7) The present invention adopts a U-shaped limiting seat, which is simple in structure. It not only restricts the other end of the wire harness from moving backward, but also restricts its left and right swing, thereby ensuring that the wire harness remains as straight as possible during the wire threading process, ensuring the flatness of the tube and avoiding secondary sorting.

[0024] (8) The present invention sets the limiting seat to be adjustable to adapt to the limiting requirements of wire harnesses of different lengths, and has better versatility.

[0025] (9) This utility model adopts a structure of strip groove and bolt to realize the adjustable installation of the limit seat. The structure is simple and the adjustment is convenient.

[0026] (10) This utility model achieves detachable connection between the base and the bottom plate and between the mounting plate and the base by screws, which facilitates the replacement of the sleeve and meets the requirements of wire harnesses with different diameters. Attached Figure Description

[0027] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0028] Figure 1 is a schematic diagram of the structure of this utility model;

[0029] Figure 2 is a schematic diagram of the sleeve structure of this utility model;

[0030] Figure 3 is a schematic diagram of the structure of this utility model with a wire harness placed therein (the wire harness is not inserted into the sleeve in the figure).

[0031] The labels in the attached diagram are:

[0032] Base plate 1, limit seat 2, strip groove 2-1, mounting seat 3, base 3-1, mounting plate 3-2, sleeve 4, tapered through-tube part 4-1, connecting hole 4-2, connecting column 5. Detailed Implementation

[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0034] (Example 1)

[0035] As shown in Figures 1 to 3, the self-winding braided tube insertion fixture includes a long, narrow base plate 1 and a limiting seat 2 and a mounting seat 3 respectively located at both ends of the base plate 1. The limiting seat 2 and the mounting seat 3 are aligned, forming a space suitable for placing the wire harness to be inserted. Sleeves 4 are symmetrically arranged on both sides of the mounting seat 3. Each sleeve 4 is fixed to the mounting seat 3 via a connecting post 5. The front end of each sleeve 4 has a tapered insertion section 4-1, and the rear end has a connecting hole 4-2 that matches the diameter of the wire harness to be processed. In use, the wire harness to be processed is first inserted into the connecting hole 4-2 to connect with the sleeve 4. Then, the ends of the two free sides of the self-winding braided tube are manually pinched and brought close to the tapered insertion section 4-1, causing the tapered insertion section 4-1 to insert into the self-winding braided tube. The self-winding braided tube is then manually pulled backward to complete the insertion process.

[0036] Specifically, the limiting seat 2 contacts the end of the wire harness to be processed that is away from the sleeve 4, thereby restricting the wire harness from moving towards that end. Since the wire harness itself has a certain rigidity, the limiting seat 2 provides forward support during threading, making it difficult for the wire harness to follow the braided tube backward. Preferably, the limiting seat 2 is a U-shaped seat with its opening facing the sleeve 4. A connector is fixed to the end of the wire harness away from the sleeve, and both sides of the U-shaped seat extend at least to the middle of the connector to restrict the connector from moving horizontally along an axis perpendicular to the sleeve. This ensures that the wire harness remains as straight as possible during threading, guaranteeing the flatness of the threading and avoiding secondary adjustments.

[0037] Since wire harnesses of the same diameter vary in length in different specifications, to ensure versatility, this embodiment sets the limiting seat 2 to be adjustablely mounted on the base plate 1 along the axial direction of the sleeve, thereby improving versatility. Specifically, the U-shaped seat has strip grooves 2-1 extending along the length direction of the wire harness on both sides. Bolts that are tightened onto the base plate 1 are located in the strip grooves 2-1. When adjustment is required, simply loosen the bolts, move the U-shaped seat to the appropriate position, and then tighten the bolts. The structure is simple and the adjustment is convenient.

[0038] Mounting base 3 includes a base 3-1 and a mounting plate 3-2 that are detachably fixed by screws. The base 3-1 is fixed to the base plate 1 by screws. The two ends of the connecting post 5 are connected to the mounting plate 3-2 and the sleeve 4 by laser welding, respectively, which facilitates the replacement of the sleeve 4 and meets the requirements of wire harnesses with different diameters.

[0039] The front end of the tapered tube insertion section 4-1 is provided with a smooth spherical surface or platform. This embodiment adopts a platform structure, which is easy to process. The outer periphery of the platform is rounded to avoid forming sharp corners that could scratch the operator. This improves safety and also prevents scratching the inner wall of the self-winding braided tube. The taper of the tapered tube insertion section 4-1 is 10 to 20°, and 14° is preferred in this embodiment. This ensures strong guidance, making it easy for the front end to enter the self-winding braided tube, while also having low friction, thus improving tube insertion efficiency.

[0040] The diameter of the connecting hole 4-2 is D1, the depth is H, and the wire diameter of the wire harness is D2, satisfying D1 = D2 + 0.1 mm and H = (2~3)D2. In this embodiment, the wire diameter of the wire harness is 15 mm, D1 is 15.1 mm, and H is 35 mm. This facilitates the insertion of the wire harness into the connecting hole 4-2. At the same time, by limiting the diameter and depth of the connecting hole 4-2, the connection between the wire harness and the sleeve is not too loose, and slight retraction occurs in time. The sufficiently large depth ensures that the wire harness is not easily detached, ensuring successful insertion into the sleeve.

[0041] The connecting post 5 is arranged radially along the sleeve 4, so that when the tapered tube-passing part 4-1 passes through the self-winding braided tube, the connecting post 5 can automatically separate the two free sides of the self-winding braided tube, avoiding excessively large rolls of the self-winding braided tube that would cause difficulty in passing through. At the same time, the width of one end of the tapered tube-passing part 4 near the connecting post 5 is smaller than the width of the other end, reducing the resistance when separating the two free sides and making the passing through of the self-winding braided tube smoother. For easy observation during operation, the connecting post 5 is located at the top of the sleeve 4, further facilitating the tube-passing operation.

[0042] This utility model achieves quick connection with the wire harness to be threaded through the self-winding braided tube by setting a sleeve 4 with a connecting hole 4-2 at the rear end. At the same time, a tapered tube-penetrating part 4-1 is provided at the front end of the sleeve 4 to facilitate insertion into the braided tube and reduce resistance during the tube-penetrating process. In addition, by setting a connecting post 5, the sleeve 4 is connected to the mounting base 3, and the two free sides of the self-winding braided tube can be automatically separated during the tube-penetrating process to avoid the self-winding braided tube being too large and causing tube-penetrating difficulties. The overall structure design is simple, simplifies the tube-penetrating steps of the self-winding braided tube, and improves tube-penetrating efficiency.

[0043] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-winding braided tube insertion tool, characterized in that: It includes a mounting base, a sleeve, and a connecting post; the mounting base is fixedly installed; the front end of the sleeve is provided with a tapered tube-through section, and the rear end is provided with a connecting hole adapted to the diameter of the wire harness to be processed, and the wire harness to be processed is inserted into the connecting hole and connected to the sleeve; one end of the connecting post is fixedly connected to the mounting base, and the other end is fixedly connected to the sleeve, and is arranged radially along the sleeve, so that when the tapered tube-through section passes through the self-winding braided tube, it automatically separates the two free sides of the self-winding braided tube.

2. The self-winding braided tube insertion tool according to claim 1, characterized in that: The width of one end of the tapered tube section near the connecting post is smaller than the width of the other end.

3. The self-winding braided tube insertion tool according to claim 2, characterized in that: The front end of the tapered tube section is provided with a smooth spherical surface or platform, and the outer periphery of the platform is rounded.

4. The self-winding braided tube insertion tool according to claim 3, characterized in that: The taper of the tapered tube section is 10–20°.

5. The self-winding braided tube insertion tool according to claim 1, characterized in that: The diameter of the connecting hole is D1 and the depth is H. The diameter of the wire harness is D2, and D1 = D2 + 0.1 mm and H = (2 ~ 3)D2 are satisfied.

6. A self-winding braided tube insertion tool according to any one of claims 1 to 5, characterized in that: It also includes a base plate, one end of which is fixedly mounted on the mounting base, and the other end of which is provided with a limiting seat along the axial direction of the sleeve. The limiting seat contacts the end of the wire harness to be processed away from the sleeve to restrict the wire harness from moving toward the end away from the sleeve.

7. The self-winding braided tube insertion tool according to claim 6, characterized in that: The limiting seat is a U-shaped seat with its opening facing the sleeve. The end of the wire harness away from the sleeve is fixed to a connector. Both sides of the U-shaped seat extend at least to the middle of the connector to restrict the horizontal movement of the connector along an axis perpendicular to the sleeve.

8. The self-winding braided tube insertion tool according to claim 7, characterized in that: The limiting seat is adjustablely mounted on the base plate along the axial direction of the sleeve.

9. The self-winding braided tube insertion tool according to claim 7, characterized in that: The U-shaped seat has strip grooves extending along the length of the wire harness on both sides, and bolts that are tightened onto the base plate are installed in the strip grooves.

10. The self-winding braided tube insertion tool according to claim 6, characterized in that: The mounting base includes a base and a mounting plate that are detachably fixed together by screws. The base is fixed to the base plate by screws, and the two ends of the connecting column are respectively connected to the mounting plate and the sleeve by laser welding process.

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