A tool for wire harness waterproofing tightening

Abstract

The application relates to a tool for tightening wire harnesses wrapped with waterproof cement, which comprises a fixing block and a tightening belt. The bottom of the fixing block is provided with a first groove, and the side of the fixing block is provided with a tightening surface used for supporting the wire harness wrapped with waterproof cement. One end of the tightening belt is connected with the top of the tightening surface and passes through the first groove, and the other end is a movable end. The tightening belt forms a tightening channel on the side of the fixing block, which is used for accommodating and tightening the wire harness wrapped with waterproof cement. The tightening surface of the fixing block and the tightening belt form the tightening channel, which can provide full circumferential support for the wire harness wrapped with waterproof cement, and improve the uniformity of the combination of the wire harness and the waterproof cement.

Description

Technical Field

[0001] This application relates to the field of wire harness processing technology, and in particular to a tooling for preventing wire harnesses from tightening with cement. Background Technology

[0002] As a crucial component of electrical systems, the protective treatment of wire harnesses directly impacts their lifespan and reliability. Cement wrapping is a common method of wire harness protection, effectively preventing corrosion from external factors such as moisture and dust. Currently, tightening the cement wrapping relies heavily on manual processes of kneading, stretching, and squeezing the cement. However, this method suffers from low efficiency and uneven pressure, resulting in uneven bonding between the cement and the wires, low airtightness test pass rates, and high product defect rates.

[0003] Patent CN216749455U provides a wire harness anti-cement tightening device, including a tightening cylinder, a tightening rod passing through the tightening cylinder, and a power component that drives the tightening rod to move back and forth. The fixed end of the tightening belt is fixedly installed at the head end of the tightening cylinder, and the other end is connected to the tightening rod; a guide is provided inside the tightening cylinder, and the tightening rod moves along the guide under the drive of the power component.

[0004] However, during the tightening process of such devices, the tightening belt may bring the wire harness and anti-cement into the tightening cylinder, thus affecting the uniformity of the bonding between the wire harness and the anti-cement. Utility Model Content

[0005] To further improve the uniformity of bonding between the wire harness and the anti-cement, this application provides a tooling for tightening the anti-cement on the wire harness.

[0006] The tooling for preventing cement from tightening in wire harnesses provided in this application adopts the following technical solution:

[0007] A tooling for tightening wire harnesses to prevent cement buildup includes a fixing block and a tightening strap. The fixing block has a first groove at its bottom and a tightening surface on its side. The tightening surface is used to support the wire harness wrapped to prevent cement buildup. One end of the tightening strap is connected to the top of the tightening surface and passes through the first groove. The other end is a movable end. The tightening strap forms a tightening channel on the side of the fixing block. The tightening channel is used to accommodate and tighten the wire harness wrapped to prevent cement buildup.

[0008] By adopting the above technical solution, the tightening surface of the fixed block and the tightening band form a tightening channel, which can provide full circumferential support for the wire harness wrapped with anti-cement and limit the displacement of the wire harness. Pulling the movable end of the tightening band can tighten the wire harness wrapped with anti-cement, so that the anti-cement is subjected to uniform force on the surface of the wire harness and improves the uniformity of the bond between the wire harness and the anti-cement.

[0009] Optionally, the tightening surface is recessed to form a second groove, and an elastic band is provided at the opening of the second groove.

[0010] By adopting the above technical solution, the elastic band can dynamically deform according to the diameter of the wire harness during the tightening process, forming a wrapping pressure, avoiding gaps in the bonding between the anti-cement and the wire harness due to insufficient local pressure, and at the same time restricting the anti-cement from overflowing from both sides of the wire harness and being squeezed out of the tooling.

[0011] Optionally, the end of the tightening band is provided with a snap-fit ​​piece, and the top of the tightening surface is provided with a snap-fit ​​groove that matches the snap-fit ​​piece. The snap-fit ​​piece can be detachably snapped into the snap-fit ​​groove.

[0012] By adopting the above technical solution, the snap-fit ​​piece can be inserted into the slot to temporarily fix the tightening band and the fixing block. The tightening band can be separated by directly pulling out the snap-fit ​​piece, which is conducive to quick disassembly and pre-fixation of the wire harness wrapped against cement.

[0013] Optionally, it also includes a base and a movable block. The base is provided with a slide rail, the movable block is slidably disposed on the slide rail, the movable block is provided with a third groove and a screw, and the movable end is fixed to the third groove by the screw.

[0014] By adopting the above technical solution, the base serves as an overall support platform, and the movable block slides along the slide rail, which can ensure the precise movement trajectory of the movable block and avoid deviation in the direction of tension caused by the offset of the movable block, thereby improving the uniformity of the circumferential pressure of the wrapped cement-proof wire harness.

[0015] Optionally, it also includes a driving component, which has a connecting block that is connected to the active end.

[0016] By adopting the above technical solution, the drive component can provide precise and stable traction force to the tightening belt by pulling the moving end of the tightening belt through the connecting block, so that the wire harness wrapped with anti-cement can withstand stable pressure and avoid uneven bonding between the wire harness and anti-cement caused by uneven manual operation force.

[0017] Optionally, the drive assembly includes a drive cylinder and a piston rod, the piston rod having a pad block, and the piston rod being connected to a connecting block.

[0018] By adopting the above technical solution, the pad can disperse the instantaneous impact force when the piston rod starts and stops, reducing damage to the drive cylinder and connecting block.

[0019] Optionally, a safety cover is provided around the piston rod.

[0020] By adopting the above technical solution and installing a safety cover around the piston rod, moisture, dust, and other contaminants can be prevented from entering the gap between the drive cylinder and the piston rod.

[0021] Optionally, a handle is also included, which is provided with a control button for controlling the reciprocating motion of the piston rod.

[0022] By adopting the above technical solution and placing the control button on the handle, it is easier to tighten the tightening belt with one hand.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By forming a tightening channel through the tightening surface of the fixed block and the tightening band, the wire harness wrapped with cement can be provided with full circumferential support and the displacement of the wire harness can be restricted. Pulling the movable end of the tightening band can tighten the wire harness wrapped with cement, so that the cement is evenly stressed on the surface of the wire harness and improves the uniformity of the bond between the wire harness and the cement.

[0025] 2. The elastic band can dynamically deform according to the diameter of the wire harness during the tightening process, forming a wrapping pressure to avoid gaps in the bonding between the cement and the wire harness due to insufficient local pressure, while also preventing the cement from overflowing from both sides of the wire harness and being squeezed out of the tooling.

[0026] 3. Temporary fixation of the tightening belt and the fixing block can be achieved by inserting the snap-fit ​​tab into the slot. The tightening belt can be separated by simply pulling out the snap-fit ​​tab, which is conducive to quick disassembly and pre-fixation of the wire harness wrapped against cement.

[0027] 4. With the base serving as the overall support platform, the movable block slides along the slide rail on the base, ensuring the precise movement trajectory of the movable block and preventing deviation in the direction of tension caused by the offset of the movable block, thereby improving the uniformity of the circumferential pressure of the wrapped cement-resistant wire harness. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0029] Figure 2 This is an exploded structural diagram of the fixing block according to an embodiment of this application;

[0030] Figure 3 This is a top view of an embodiment of this application;

[0031] Figure 4 This is a schematic diagram of the structure of the active block in an embodiment of this application;

[0032] Figure 5 This is a cross-sectional structural diagram of an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Fixing block; 11. First groove; 12. Tightening surface; 121. Second groove; 122. Elastic band; 13. Slot; 2. Tightening band; 21. Tightening channel; 22. Movable end; 23. Snap-fit ​​piece; 3. Base; 31. Slide rail; 4. Movable block; 41. Third groove; 42. Screw; 5. Drive assembly; 51. Connecting block; 52. Drive cylinder; 53. Piston rod; 531. Pad; 532. Safety cover; 6. Handle; 61. Control button. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0035] This application discloses a tooling for preventing cement from tightening in wire harnesses, as described in the embodiments below. Figures 1-2 The device includes a fixing block 1 and a tightening strap 2. The fixing block 1 has a first groove 11 at its bottom and a tightening surface 12 on its side, which supports the wire harness wrapped in cement. The tightening strap 2 is made of rubber, with one end connected to the top of the tightening surface 12 and passing through the first groove 11, and the other end being a movable end 22. The tightening strap 2 forms a tightening channel 21 on the side of the fixing block 1, which accommodates and tightens the wire harness wrapped in cement. Pulling the movable end 22 adjusts the tightness of the tightening strap 2.

[0036] Reference Figure 2 The tightening surface 12 is recessed to form a second groove 121, and an elastic band 122 is provided at the opening of the second groove 121. The elastic band 122 is made of rubber and can dynamically deform according to the diameter of the wire harness during the tightening process of the tightening band 2, forming a wrapping pressure to avoid insufficient local pressure that could lead to gaps in the bonding between the cement and the wire harness. The end of the tightening band 2 is provided with a snap-fit ​​piece 23, and the top of the tightening surface 12 is provided with a snap-fit ​​groove 13 that matches the snap-fit ​​piece 23. The snap-fit ​​piece 23 can be detachably snapped into the snap-fit ​​groove 13. Inserting and pulling out the snap-fit ​​piece 23 can realize the installation and separation of the tightening band 2.

[0037] Reference Figure 3-4 It also includes a base 3 and a movable block 4. The base 3 has a slide rail 31, and the fixed block 1 is mounted on the base 3. The movable block 4 is slidably mounted on the slide rail 31, ensuring precise movement of the movable block 4 and preventing uneven stress on the anti-cement material caused by the misalignment of the movable block 4 on the tightening band 2. The movable block 4 has a third groove 41 and a screw 42, and the movable end 22 of the tightening band 2 is fixed to the third groove 41 by the screw 42.

[0038] Reference Figure 5The system also includes a drive assembly 5, which is mounted on the base 3. The drive assembly 5 includes a drive cylinder 52 and a piston rod 53. One end of the piston rod 53 is connected to the drive cylinder 52, and the other end is connected to a connecting block 51. The connecting block 51 is connected to the movable end 22. The drive assembly 5 pulls the tightening belt 2 through the connecting block 51, providing precise and stable traction to the tightening belt 2. A pad 531 is provided on the piston rod 53 to disperse the instantaneous impact force when the piston rod 53 starts and stops. A safety cover 532 is provided around the piston rod 53. One end of the safety cover 532 is fixed to the base 3 by a hinge, and the other end is located on a handle. The safety cover 532 can be opened by the handle to prevent moisture, dust, etc., from entering the gap between the drive cylinder and the piston rod. The system also includes a handle 6, which is located at the bottom of the base 3. The handle 6 has a control button 61, which is used to control the reciprocating motion of the piston rod 53, facilitating one-handed operation to tighten the tightening belt.

[0039] The implementation principle of this embodiment is as follows: The snap-fit ​​piece 23 is pulled out from the slot 13, the wire harness wrapped with cement mortar is placed on the tightening belt 2, and then the snap-fit ​​piece 23 is snapped into the slot 13. Holding the handle 6, the control button 61 is pressed, and the solenoid valve drives the cylinder 52 to move the piston rod 53, which in turn moves the connecting block 51, the movable block 4, and the tightening belt 2. The tightening channel 21 narrows, tightening the wire harness wrapped with cement mortar, ensuring a uniform bond between the cement mortar and the wire harness. After pressure holding, the drive assembly 5 resets, completing the operation.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tooling for preventing cement from tightening in wire harnesses, characterized in that: Includes a fixing block (1) and a tightening band (2); The bottom of the fixing block (1) is provided with a first groove (11), and the side of the fixing block (1) is provided with a tightening surface (12). The tightening surface (12) is used to support the wire bundle wrapped with cement. One end of the tightening band (2) is connected to the top of the tightening surface (12) and passes through the first groove (11). The other end is a movable end (22). The tightening band (2) forms a tightening channel (21) on the side of the fixing block (1). The tightening channel (21) is used to accommodate and tighten the wire bundle wrapped with cement.

2. The tooling for preventing cement tightening in wire harnesses according to claim 1, characterized in that, The tightening surface (12) is recessed to form a second groove (121), and an elastic band (122) is provided at the opening of the second groove (121).

3. The tooling for preventing cement tightening in wire harnesses according to claim 1, characterized in that, The tightening band (2) has a snap-fit ​​piece (23) at its end, and the top of the tightening surface (12) has a slot (13) that matches the snap-fit ​​piece (23).

4. The tooling for preventing cement tightening in wire harnesses according to claim 1, characterized in that, It also includes a base (3) and a movable block (4). The base (3) is provided with a slide (31). The movable block (4) is slidably disposed on the slide (31). The movable block (4) is provided with a third groove (41) and a screw (42). The movable end (22) is fixed to the third groove (41) by the screw (42).

5. The tooling for preventing cement tightening in wire harnesses according to claim 1, characterized in that, It also includes a drive assembly (5), which has a connecting block (51) and is connected to the movable end (22) of the tightening belt (2).

6. The tooling for preventing cement tightening in wire harnesses according to claim 5, characterized in that, The drive assembly (5) includes a drive cylinder (52) and a piston rod (53). A pad (531) is provided on the piston rod (53), and the piston rod (53) is connected to the connecting block (51).

7. The tooling for preventing cement tightening in wire harnesses according to claim 6, characterized in that, The piston rod (53) is provided with a safety cover (532) around its periphery.

8. A tooling for preventing cement tightening in wire harnesses according to claim 6, characterized in that, It also includes a handle (6), on which a control button (61) is provided, the control button (61) being used to control the reciprocating motion of the piston rod (53).

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