Integrated forming processing method for branch wire harness sheath

Abstract

The invention discloses a branch wire harness sheath integral forming processing method, and relates to the technical field of wire harness processing, and the method comprises the steps: S1, manufacturing a wire harness forming mold according to the outer diameter requirement of a wire harness, manufacturing a connector encapsulation mold according to a connector and cable combination structure, and manufacturing a branch mold according to the shape and diameter of a branch wire harness; s2, installing the connector in a connector potting mold, potting a cold forming glue solution, and forming the end of the connector; s3, the wire harness is installed on the wire harness forming mold, the cold forming glue solution is poured and sealed, and the wire harness is formed; and S4, installing each branch wire harness in a branch mold, and filling and sealing the cold forming glue solution to form the branch wire harness. According to the integrated forming processing method for the branch wire harness sheath, normal-temperature integrated forming of the wire harness sheath can be reliably, conveniently and rapidly achieved with excellent processing quality, and all types of branch cable products can be considered while the waterproof and airtight performance of the wire harness is met. The defects existing in a sleeve thermal shrinkage type method and a heating vulcanization type method in a branch wire harness sheath processing method in the prior art are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness processing, in particular to a method for integrally forming a branch wire harness sheath. Background Art

[0002] At present, there are two main methods for processing branch harness sheaths:

[0003] 1. Tube heat shrinkage: Use heat shrink tubing to install the main trunk of each harness first, and use molded shrink tubing to seal the branches and connector ends of the harness. The disadvantages of this method are: the entire harness is made of heat shrink tubing and molded shrink tubing, the harness roundness is very poor, the joint between the molded shrink tubing and the heat shrink tubing is prone to cracking, the branch molded shrink tubing has fewer specifications, and the defects cannot be repaired.

[0004] 2. Heating vulcanization: Process the overall cavity of the wiring harness in the mold, fill the cavity with raw rubber in advance, then embed the wiring harness into the cavity and close the mold, install the mold in a flat vulcanizer, and heat it for a long enough time to fully vulcanize the raw rubber. The disadvantages of this method are: it is only suitable for small-branch wiring harnesses, and cannot process wiring harnesses with long branches, large wiring harness diameters, and poor temperature resistance, and defects cannot be repaired. Summary of the invention

[0005] The purpose of the present invention is to provide a method for integrally forming a branch wiring harness sheath, which is used to solve the problems in the prior art that the heat-shrinkable branch wiring harness sheath processing method is formed by heat shrinking a heat shrink tube and a molded shrink tube, the wire harness roundness is extremely poor, the joint between the molded shrink tube and the heat shrink tube is prone to cracking, and the branch molded shrink tube specifications are small; and the heating vulcanization branch wiring harness sheath processing method is only suitable for small branch wiring harnesses, and cannot process wiring harnesses with long branches, large wiring harness diameters, and poor temperature resistance.

[0006] The present invention solves the above problems through the following technical solutions:

[0007] A method for integrally forming a branch harness sheath, comprising:

[0008] Step S1, making a wire harness forming mold according to the outer diameter requirements of the wire harness, making a connector potting mold according to the connector and cable combination structure, and making a branching mold according to the shape and diameter of the branch wire harness;

[0009] Step S2, installing the connector in a connector potting mold, potting with cold molding glue, and molding the connector end;

[0010] Step S3, installing the wire harness on a wire harness forming mold, filling with cold forming glue, and forming the wire harness;

[0011] Step S4: install each branch wiring harness on a branch mold, and fill it with cold molding glue to mold the branch wiring harness.

[0012] Furthermore, the connector potting mold includes a first upper mold and a first lower mold for mold closing, and the first upper mold and the first lower mold are matched with a potting cavity, a first positioning column for positioning the first upper mold and the first lower mold, a first demolding groove and a first venting groove for prying open the mold, and the first lower mold also includes a first glue injection hole and a first overflow hole connected to the potting cavity.

[0013] Furthermore, the step S2 specifically includes: installing the connector in the connector potting mold and closing the mold, filling the cold molding glue from the first glue injection hole until the glue overflows from the first overflow hole or the glue is visible, standing at room temperature, and removing the obtained connector potting molded body from the connector potting mold after the glue is solidified.

[0014] Furthermore, the wire harness forming mold comprises:

[0015] Two semi-annular tubes that are clamped together; the two semi-annular tubes form a tubular cavity, the diameter of the tubular cavity matches the outer diameter of the wiring harness sheath; the two semi-annular tubes are symmetrically provided with threaded holes, a centering structure is installed in the threaded holes, the centering structure includes a semi-annular clamping structure and a pushing screw, the semi-annular clamping structure is located on the inner side of the semi-annular tube, one end of the pushing screw is located on the outer side of the semi-annular tube, and the other end passes through the inner side of the semi-annular tube and is connected to the semi-annular clamping structure.

[0016] Furthermore, the step S3 specifically includes:

[0017] The wire harness is installed in the wire harness forming mold and the mold is closed, the centering structure is installed away from the connector end, and a section of the wire harness formed at the connector end enters the tubular cavity;

[0018] Fix the harness forming mold with the harness vertically on the bracket, with the connector end facing downward, and fix the half ring tube with a buckle;

[0019] Slightly stretch the wire harness to make it vertical in the tubular cavity, rotate the push screw, and the push screw drives the semi-ring clamping structure to clamp the wire harness to complete centering;

[0020] Inject the cold molding glue liquid into the wiring harness molding mold from the tubular cavity until the liquid level approaches the centering structure, let it stand at room temperature, and remove the wiring harness molding mold after the glue liquid solidifies;

[0021] Remove the buckle, open the semi-ring tube, and obtain the wiring harness potting molding.

[0022] Furthermore, when there are many branch harnesses or the harness is too long to complete the harness forming at once, step S3 is repeated until all harnesses are formed.

[0023] Furthermore, the branch mold includes a second upper mold and a second lower mold, and the second upper mold and the second lower mold are matched with a branch cavity, a second exhaust groove connected to the branch cavity, a second demolding groove for prying open the mold, and a second positioning column for positioning the second upper mold and the second lower mold. The second upper mold is also provided with a second overflow hole and a second glue injection hole connected to the branch cavity.

[0024] Furthermore, the step S4 specifically includes:

[0025] Install the branch wire harness and part of the wire harness potting molded body in the composite branch cavity after the second upper mold and the second lower mold are molded together, ensure that the outlet holes at both ends of the composite branch cavity are filled with the wire harness potting molded body, and mold the second upper mold and the second lower mold together through the second positioning column;

[0026] Place the installed branch mold flat, with the second glue injection hole facing upward, and pour the cold molding glue into the synthetic branch cavity from the second glue injection hole to fill the synthetic branch cavity until glue overflows from the second overflow hole or glue is visible; let it stand at room temperature until the glue solidifies, and use a tool to knock on the second demolding groove to disengage the second upper mold and the second lower mold to obtain a branch potting molding;

[0027] Repeat the above steps until all branch wiring harnesses are potted.

[0028] Furthermore, it also includes making a connection mold according to the outer diameter requirements of the wire harness, and the connection mold is used to remove defects from the formed wire harness; the connection mold includes a third upper mold and a third lower mold, and the third upper mold and the third lower mold are both matched with a connection cavity, a third exhaust groove connected to the connection cavity, a third mold release groove for prying open the mold, and a third positioning column for positioning the third upper mold and the third lower mold, and the third upper mold is also provided with a third overflow hole and a third glue injection hole connected to the connection cavity.

[0029] Furthermore, the method for removing defects from the formed wire harness is specifically as follows:

[0030] The defective part of the formed wire harness is cut off to reveal an annular gap, and the gap is placed in the middle of the third lower mold (51), ensuring that both the left and right ends of the connection cavity are partially filled with the wire harness potting molded body, and the third upper mold is molded with the third lower mold;

[0031] Lay the installed splicing mold flat with the third glue injection hole facing upwards, and pour the cold-molded glue from the third glue injection hole into the combined splicing cavity after the third upper mold and the third lower mold are closed, filling the combined splicing cavity until glue overflows from the third overflow hole or glue is visible; let it stand at room temperature until the glue solidifies, use a tool to knock on the third demolding groove to disengage the third upper mold and the third lower mold, and take the splicing harness out of the splicing mold.

[0032] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0033] (1) The present invention provides a method for integrally forming a branch harness sheath, which can reliably, conveniently and with high processing quality realize integrally forming of the harness sheath at room temperature, meet the waterproof and airtight performance of the harness and take into account all types of branch cable products. The defects existing in the branch harness sheath processing methods in the prior art, such as the heat shrink type and the heat vulcanization type, are avoided.

[0034] (2) The present invention uses a connector potting mold, a harness molding mold, a branching mold and a connection mold to inject and solidify the glue to form the semi-finished sheath-free branch harness at room temperature, thereby achieving the characteristics of one-piece sheath molding, waterproofing, airtightness and wear resistance.

[0035] (3) The present invention uses room temperature curing potting glue to integrally form the wiring harness sheath, which can achieve excellent waterproof and sealing performance.

[0036] (4) The present invention is compatible with the molding processing of all types of wire harness sheaths, and the molding mold is designed according to the actual size of the wire harness.

[0037] (5) The present invention can freely select the type and hardness of the potting glue according to the actual situation of the product to meet the wiring harness requirements of different environments.

[0038] (6) The present invention can perform repair operations on defective parts, which is simple to operate and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the wiring harness of the present invention;

[0040] Figure 2 for Figure 1 Schematic diagram of the structure before the unformed sheath;

[0041] Figure 3 Schematic diagram of the structure of the connector potting mold, wherein (a) is a schematic diagram of the first upper mold and the first lower mold in the connector potting mold, and (b) is a cross-sectional view of the first lower mold in the connector potting mold;

[0042] Figure 4 Schematic diagram of installing a connector potting mold for a connector;

[0043] Figure 5 A schematic diagram of a connector potting mold potting a connector;

[0044] Figure 6 Schematic diagram of the structure of the wire harness forming mold, wherein (a) is a front view of the wire harness forming mold, and (b) is a right view of the wire harness forming mold;

[0045] Figure 7 It is a schematic diagram of a wire harness installation wire harness forming mold, wherein (a) is a front view of the wire harness installation wire harness forming mold, and (b) is a left view of the wire harness installation wire harness forming mold;

[0046] Figure 8 Schematic diagram of the wiring harness molding mold clamping and potting the wiring harness;

[0047] Fig. 9 Schematic diagram of the structure of the branch mold, wherein (a) is a schematic diagram of the second lower mold; (b) is a schematic diagram of the second upper mold and the second lower mold being combined; (c) is a rear view of (b); (d) is a schematic diagram of the structure of the second upper mold;

[0048] Fig.10 Schematic diagram of installing a branching mold for a branching harness;

[0049] Fig.11 Schematic diagram of the structure of the connecting mold, wherein (a) is a cross-sectional view of the third lower mold in the connecting mold; (b) is a schematic diagram of the third upper mold and the third lower mold in the connecting mold; (c) is a schematic diagram of the structure of the third upper mold;

[0050] Fig.12 Schematic diagram of installing a splicing die for a wiring harness;

[0051] Reference numerals:

[0052] 1—wiring harness as a whole; 11—connector; 12—unsheathed semi-finished wiring harness; 121—conductor; 122—wave-proof sleeve; 13—connector potting molding; 14—wiring harness potting molding; 15—branch potting molding;

[0053] 2—connector potting mold; 21—first upper mold; 22—first lower mold; 221—potting cavity; 222—first overflow hole; 223—first positioning column; 224—first demoulding groove; 225—first exhaust groove; 226—first glue injection hole;

[0054] 3—wire harness forming mold; 31—semi-ring tube; 32—centering structure; 321—semi-ring clamping structure; 322—advancing screw;

[0055] 4—branch mold; 41—second lower mold; 411—branch cavity; 412—second exhaust groove; 413—second demolding groove; 414—second positioning column; 42—second upper mold; 421—second overflow hole; 422—second glue injection hole;

[0056] 5—connection mold; 51—third lower mold; 511—connection cavity; 512—third exhaust groove; 513—third demolding groove; 514—third positioning column; 52—third upper mold; 521—third overflow hole; 522—third glue injection hole. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0058] Embodiment 1:

[0059] A method for integrally forming a branch harness sheath, comprising:

[0060] Step S1, making a wire harness forming mold 3 according to the outer diameter requirement of the wire harness, making a connector potting mold 2 according to the connector 11 and cable combination structure, and making a branching mold 4 according to the shape and diameter of the branch wire harness;

[0061] Step S2, installing the connector 11 in the connector potting mold 2, potting the cold molding glue, and molding the connector end;

[0062] Step S3, installing the wire harness on the wire harness forming mold 3, filling with cold forming glue, and forming the wire harness;

[0063] Step S4, installing each branch wiring harness on the branch mold 4, and filling it with cold molding glue to mold the branch wiring harness.

[0064] The structure of the wire harness before the sheath is formed is as follows Figure 2 As shown, it includes a connector 11 and a semi-finished wire harness without sheath 12 (including a conductor 121 and a wave-proof sleeve 122). First, a wire harness forming mold 3 is made according to the outer diameter requirement of the wire harness, a connector potting mold 2 is made according to the connector 11 and cable combination structure, and a branch mold 4 is made according to the branch shape and each branch diameter; then, the connector 11 and the semi-finished wire harness without sheath 12 are installed in the connector potting mold 2, and cold-molded glue is poured to preferentially mold the connector end to obtain a connector potting molded body 13; then, the wire harness is installed on the wire harness forming mold 3, and cold-molded glue is poured to mold the wire harness to obtain a wire harness potting molded body 14. Finally, the branch wire harness is installed in the branch mold 4, and cold-molded glue is poured to mold the branch wire harness to obtain the wire harness as a whole 1, as shown in FIG. Figure 1 This method can ensure that the branch harness sheath is integrally formed to achieve the purpose of waterproofing and airtightness.

[0065] Embodiment 2:

[0066] Based on Example 1, Figure 3As shown, the connector potting mold 2 includes a first upper mold 21 and a first lower mold 22 for mold closing. The first upper mold 21 and the first lower mold 22 are partially structurally matched, and the combined potting cavity formed after the mold closing is matched with the required connector size and wiring harness outer diameter size. Taking the first lower mold 22 as an example of the same part, the first lower mold 22 is provided with a potting cavity 221, a first positioning column 223 for positioning the first upper mold 21 and the first lower mold 22, a first demolding groove 224 and a first exhaust groove 225 for prying open the mold, and the potting cavity 221 is connected to the first exhaust groove 225 on the side away from the first upper mold 21. The difference is that the first lower mold 22 is also provided with a first overflow hole 222 and a first glue injection hole 226 that are connected to the combined potting cavity.

[0067] One of the first upper die 21 and the first lower die 22 may be configured as a positioning column and the other as a positioning hole.

[0068] Furthermore, if Figure 3 , Figure 4 and Figure 5 As shown, the step S2 specifically includes: installing the connector 11 in the connector potting mold 2 and closing the mold, filling the cold molding glue from the first glue injection hole 226 until the glue overflows from the first overflow hole 222 or the glue is visible, standing at room temperature, and removing the obtained connector potting molded body 13 from the connector potting mold 2 after the glue is solidified.

[0069] Embodiment 3:

[0070] Based on Example 1, Figure 6 As shown, the wire harness forming mold 3 includes:

[0071] Two semi-annular tubes 31 are clamped to each other; the two semi-annular tubes 31 enclose a tubular cavity, the diameter of which matches the outer diameter of the harness sheath; the two semi-annular tubes 31 are symmetrically provided with threaded holes, a centering structure 32 is installed in the threaded holes, the centering structure 32 includes a semi-annular clamping structure 321 and a pushing screw 322, the semi-annular clamping structure 321 is located inside the semi-annular tube 31, one end of the pushing screw 322 is located outside the semi-annular tube 31, and the other end passes through the inside of the semi-annular tube 31 and is connected to the semi-annular clamping structure 321. The centering structure 32 is a spiral structure, and the top semi-annular clamping structure 321 is dragged by two sets of screws to clamp the harness to prevent the harness from being eccentric when being formed.

[0072] Furthermore, if Figure 6 , Figure 7 and Figure 8 As shown, the step S3 specifically includes:

[0073] The wire harness is installed in the wire harness forming mold 3 and the mold is closed, the centering structure 32 is installed away from the connector end, and a section of the wire harness formed at the connector end enters the tubular cavity;

[0074] Fix the wire harness forming mold 3 together with the wire harness vertically on the bracket, with the connector end facing downward, and fix the semi-ring tube 31 with a buckle;

[0075] The wire harness is slightly stretched to make it stand vertically in the tubular cavity, and the advancing screw 322 is rotated, and the advancing screw 322 drives the semi-ring clamping structure 321 to clamp the wire harness to complete centering;

[0076] Use a syringe or glue injection machine to inject the cold molding glue liquid from the tubular cavity into the wiring harness molding mold 3 until the liquid level approaches the centering structure 32, and then let it stand at room temperature until the glue liquid solidifies and then remove the wiring harness molding mold 3;

[0077] The buckle is removed, and the semi-annular tube 31 is opened to obtain the wiring harness potting molding 14 .

[0078] Preferably, the semi-annular tube 31 is made of metal or non-metal with relatively high strength.

[0079] Furthermore, when there are many branch harnesses or the harness is too long to complete the harness forming at once, step S3 is repeated until all harnesses are formed.

[0080] Embodiment 4:

[0081] Based on Example 1, Fig. 9 As shown, the branch mold 4 includes a second upper mold 42 and a second lower mold 41. The second upper mold 42 and the second lower mold 41 have a partially matched structure. Taking the second lower mold 41 as an example of the same part, the second lower mold 41 is provided with a branch cavity 411, a second exhaust groove 412 connected to the branch cavity 411, a second mold opening groove 413 for prying the mold open, and a second positioning column 414 for positioning the second upper mold 42 and the second lower mold 41. The combined branch cavity after the second upper mold 42 and the second lower mold 41 are molded together matches the required branch harness shape and outer diameter size. The difference between the two is that the second upper mold 42 is also provided with a second overflow hole 421 and a second glue injection hole 422 connected to the branch cavity 411.

[0082] One of the second upper mold 42 and the second lower mold 41 may be configured as a positioning post and the other as a positioning hole.

[0083] Furthermore, combined with Fig. 9 and Fig.10 As shown, the step S4 specifically includes:

[0084] Install the branch wire harness and part of the wire harness potting molded body 14 in the branch cavity 411 of the second lower mold 41, ensure that the outlet holes at both ends of the branch cavity 411 are filled with the wire harness potting molded body 14, and close the second upper mold 42 with the second lower mold 41 through the second positioning column 414;

[0085] The installed branch mold 4 is placed flat, with the second glue injection hole 422 facing upward, and a syringe or a glue injection machine is used to inject cold molding glue from the second glue injection hole 422 into the combined branch cavity obtained by closing the second upper mold 42 and the second lower mold 41, filling the combined branch cavity until glue overflows from the second overflow hole 421 or glue is visible; let it stand at room temperature until the glue solidifies, and use a tool to knock the second demolding groove 413 to disengage the second upper mold 42 and the second lower mold 41 to obtain a branch potting molding 15;

[0086] Repeat the above steps until all branch wiring harnesses are potted.

[0087] Embodiment 4:

[0088] Based on Example 1, Fig.11 As shown, it also includes making a connection mold 5 according to the outer diameter requirements of the wire harness, and the connection mold 5 is used to remove defects from the formed wire harness; the connection mold includes a third upper mold 52 and a third lower mold 51, and the third upper mold 52 and the third lower mold 51 are partially matched in structure. The third lower mold 51 is taken as an example of the same part. The third lower mold 51 is provided with a connection cavity 511, a third exhaust groove 512 connected to the connection cavity 511, a third mold opening groove 513 for prying open the mold, and a third positioning column 514 for positioning the third upper mold 52 and the third lower mold 51. The difference is that the third upper mold 52 is provided with a third overflow hole 521 and a third glue injection hole 522 connected to the connection cavity 511. The combined connection cavity obtained after the third upper mold 52 and the third lower mold 51 are molded together matches the required outer diameter of the wire harness, and the inner diameter is the outer diameter of the wire harness required by the product.

[0089] The third upper mold 52 and the third lower mold 51 may also be provided with a positioning column or a positioning hole on one side.

[0090] Furthermore, combined with Fig.11 and Fig.12 As shown, the method for removing defects from the formed wiring harness is specifically as follows:

[0091] Check the appearance of the wire harness molding, cut off the defective parts, and leave a circular gap. Place the gap in the middle of the third lower mold 51, ensure that both the left and right ends of the connection cavity 511 are partially filled with the wire harness potting molding 14, and close the third upper mold 52 with the third lower mold 51;

[0092] Lay the installed splicing mold 5 flat with the third glue injection hole 522 facing upwards, and pour the cold-molded glue from the third glue injection hole 522 into the combined splicing cavity obtained by combining the third upper mold 52 and the third lower mold 51, filling the combined splicing cavity until glue overflows from the third overflow hole 521 or glue is visible; let it stand at room temperature until the glue solidifies, use a tool to knock on the third demolding groove 513 to disengage the third upper mold 52 and the third lower mold 51, and take the splicing harness out of the splicing mold 5.

[0093] The cold forming glue used can be single-component or multi-component potting glue such as liquid silicone-based potting glue, polyurethane potting glue, epoxy glue, etc.

[0094] In the present invention: 1) a required cavity is formulated by a potting mold, and the cavity is filled with molding glue and solidified to achieve the required shape. 2) The integrity, integrity and sealing of the glue molding are utilized to ensure the overall requirements of the wiring harness. 3) Potting glues of different molding hardness can be selected as needed to achieve the required softness and hardness. 4) The mold cavity can be customized according to the shape of the wiring harness to meet various types of appearance design requirements, with high flexibility.

[0095] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are only preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A method for integrally forming a branch harness sheath, characterized in that: include: Step S1, making a wire harness forming mold according to the outer diameter requirements of the wire harness, making a connector potting mold according to the connector and cable combination structure, and making a branching mold according to the shape and diameter of the branch wire harness; Step S2, installing the connector in a connector potting mold, potting with cold molding glue, and molding the connector end; Step S3, installing the wire harness on a wire harness forming mold, filling with cold forming glue, and forming the wire harness; Step S4: install each branch wiring harness on a branch mold, and fill it with cold molding glue to mold the branch wiring harness.

2. A method for integrally forming a branch harness sheath according to claim 1, characterized in that: The connector potting mold includes a first upper mold and a first lower mold for mold closing, the first upper mold and the first lower mold are matched with a potting cavity, a first positioning column for positioning the first upper mold and the first lower mold, a first demolding groove and a first venting groove for prying open the mold, and the first lower mold also includes a first glue injection hole and a first overflow hole connected to the potting cavity.

3. A method for integrally forming a branch harness sheath according to claim 2, characterized in that: The step S2 specifically includes: installing the connector in the connector potting mold and closing the mold, potting the cold molding glue from the first glue injection hole until the glue overflows from the first overflow hole or the glue is visible, standing at room temperature, and removing the obtained connector potting molding from the connector potting mold after the glue is solidified.

4. A method for integrally forming a branch harness sheath according to claim 1, characterized in that: The wiring harness forming mold comprises: Two semi-annular tubes that are clamped together; the two semi-annular tubes form a tubular cavity, the diameter of the tubular cavity matches the outer diameter of the wiring harness sheath; the two semi-annular tubes are symmetrically provided with threaded holes, a centering structure is installed in the threaded holes, the centering structure includes a semi-annular clamping structure and a pushing screw, the semi-annular clamping structure is located on the inner side of the semi-annular tube, one end of the pushing screw is located on the outer side of the semi-annular tube, and the other end passes through the inner side of the semi-annular tube and is connected to the semi-annular clamping structure.

5. A method for integrally forming a branch harness sheath according to claim 4, characterized in that: The step S3 specifically includes: The wire harness is installed in the wire harness forming mold and the mold is closed, the centering structure is installed away from the connector end, and a section of the wire harness formed at the connector end enters the tubular cavity; Fix the harness forming mold with the harness vertically on the bracket, with the connector end facing downward, and fix the half ring tube with a buckle; Slightly stretch the wire harness to make it vertical in the tubular cavity, rotate the push screw, and the push screw drives the semi-ring clamping structure to clamp the wire harness to complete centering; Inject the cold molding glue liquid into the wiring harness molding mold from the tubular cavity until the liquid level approaches the centering structure, let it stand at room temperature, and remove the wiring harness molding mold after the glue liquid solidifies; Remove the buckle, open the semi-ring tube, and obtain the wiring harness potting molding.

6. A method for integrally forming a branch harness sheath according to claim 5, characterized in that: When there are many branch harnesses or the harness is too long to complete the harness forming at once, step S3 is repeated until all harnesses are formed.

7. A method for integrally forming a branch harness sheath according to claim 1, characterized in that: The branch mold includes a second upper mold and a second lower mold, and the second upper mold and the second lower mold are both matched with a branch cavity, a second exhaust groove connected to the branch cavity, a second demolding groove for prying open the mold, and a second positioning column for positioning the second upper mold and the second lower mold. The second upper mold is also provided with a second overflow hole and a second glue injection hole connected to the branch cavity.

8. A method for integrally forming a branch harness sheath according to claim 7, characterized in that: The step S4 specifically includes: Install the branch wire harness and part of the wire harness potting molded body in the composite branch cavity after the second upper mold and the second lower mold are molded together, ensure that the outlet holes at both ends of the composite branch cavity are filled with the wire harness potting molded body, and mold the second upper mold and the second lower mold together through the second positioning column; Place the installed branch mold flat, with the second glue injection hole facing upward, and pour the cold molding glue into the synthetic branch cavity from the second glue injection hole to fill the synthetic branch cavity until glue overflows from the second overflow hole or glue is visible; let it stand at room temperature until the glue solidifies, and use a tool to knock on the second demolding groove to disengage the second upper mold and the second lower mold to obtain a branch potting molding; Repeat the above steps until all branch wiring harnesses are potted.

9. A method for integrally forming a branch harness sheath according to claim 1, characterized in that: It also includes making a connection mold according to the outer diameter requirements of the wire harness, and the connection mold is used to remove defects from the formed wire harness; the connection mold includes a third upper mold and a third lower mold, and the third upper mold and the third lower mold are both matched with a connection cavity, a third exhaust groove connected to the connection cavity, a third mold removal groove for prying open the mold, and a third positioning column for positioning the third upper mold and the third lower mold, and the third upper mold is also provided with a third overflow hole and a third glue injection hole connected to the connection cavity.

10. A method for integrally forming a branch harness sheath according to claim 9, characterized in that: The method for removing defects from the formed wiring harness is as follows: The defective part of the formed wire harness is cut off to reveal an annular gap, and the gap is placed in the middle of the third lower mold (51), ensuring that both the left and right ends of the connection cavity are partially filled with the wire harness potting molded body, and the third upper mold is molded with the third lower mold; Lay the installed splicing mold flat with the third glue injection hole facing upwards, and pour the cold-molded glue from the third glue injection hole into the combined splicing cavity after the third upper mold and the third lower mold are closed, filling the combined splicing cavity until glue overflows from the third overflow hole or glue is visible; let it stand at room temperature until the glue solidifies, use a tool to knock on the third demolding groove to disengage the third upper mold and the third lower mold, and take the splicing harness out of the splicing mold.

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