Rubber sheath multidirectional reaming device for automobile wire harness

Abstract

The invention relates to the technical field of rubber sheath reaming, in particular to a rubber sheath multidirectional reaming device for automobile wire harnesses, which comprises a reaming propulsion mechanism, a hole depth regulation and control mechanism arranged in the reaming propulsion mechanism and a hole direction regulation mechanism arranged on the reaming propulsion mechanism. The reaming propelling mechanism comprises a pressure-resistant guide pipe, and a through hole is formed in the pressure-resistant guide pipe; the pressure-resistant guide pipe is arranged, and the hole direction adjusting mechanism is arranged outside the pressure-resistant guide pipe, so that after the nut on the internal thread section of the pressure-resistant guide pipe is adjusted, the hole direction adjusting mechanism can be extruded by the nut to extend outwards, and at the moment, the two symmetrically distributed pressure hole ends can perform reaming operation on the selected part of the rubber sheath; when the core rod pushes the two pull rods to stretch, and the two hole pressing end heads are subjected to side turning adjustment, so that the hole pressing end heads can be quickly and conveniently withdrawn from a deformation cavity of a sheath after hole expanding.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber sheath reaming, and specifically relates to a multi-directional reaming device for rubber sheaths used in automotive wire harnesses. Background Art

[0002] The pre-assembly of automotive wire harnesses requires rubber sheaths to provide protection. Since the compressive strength of rubber sheaths is relatively large, when adjusting the rubber sheaths assembled on the wire harnesses, a reaming device is needed for assistance. After using the reaming device to apply pressure and expand a selected part of the sheath, the reamed sheath can be conveniently and quickly assembled on the automotive wire harness.

[0003] At present, there are certain defects in the expansion components inside the automotive wire harness reaming device during actual use. Since the angle of the reaming end is fixed, during reaming, the reamed sheath will hinder the detachment of the expansion component. At the same time, the reaming depth inside the sheath is also relatively constant, which is not convenient for adapting the sheath to wire harnesses with different degrees of expansion.

[0004] In view of this, a multi-directional reaming device for rubber sheaths used in automotive wire harnesses is designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] For this reason, the technical solution adopted by the present invention is as follows: A multi-directional reaming device for rubber sheaths used in automotive wire harnesses, including a reaming propulsion mechanism, a hole depth control mechanism arranged inside the reaming propulsion mechanism, and a hole direction adjustment mechanism arranged on the reaming propulsion mechanism; the reaming propulsion mechanism includes a pressure-resistant conduit, and a through hole is opened inside the pressure-resistant conduit. A core rod is movably installed inside the through hole, and a first pull rod and a second pull rod which are stacked are movably installed at the inner end of the core rod; the hole direction adjustment mechanism includes a pressure-increasing sleeve arranged on the threaded section of the pressure-resistant conduit, a first support frame movably installed at one end of the pressure-increasing sleeve, and a second support frame movably installed at the other end of the pressure-increasing sleeve; clamping heads are arranged at the two ends of the first support frame and the second support frame away from the pressure-increasing sleeve, a base is arranged inside the clamping head, and a reaming end head is installed on the threaded section of the base.

[0007] The present invention can be further configured in a preferred example as follows: the hole depth control mechanism includes a base arranged outside the pressure-resistant conduit, a locking bolt installed in the screw hole inside the base, and two groups of sliding table components movably installed in the two sliding channels of the base; The sliding table component includes a slider, an end rod installed at one end of the slider, a second spring arranged outside the end rod, and a guide rod arranged inside the slider; On one side of the outside of the slider, a lever arm is movably installed. At the other end of the lever arm, a slide bar is provided. Inside the slide bar, an extension screw rod is movably installed. On the threaded section of the extension screw rod, a reinforcing ring pad is provided, and the reinforcing ring pad is installed at the outer end of the pressure-resistant conduit; On the other side of the outside of the slider, a limit frame is installed.

[0008] In a preferred example of the present invention, it can be further configured that: the hole expanding and pushing mechanism further includes two sliding columns fixedly installed at the outer end of the pressure-resistant conduit, a ring rail movably installed outside the two sliding columns, and a handle sleeve installed at the inner end of the ring rail; On the threaded section of the pressure-resistant conduit, a nut and a first spring are provided, and the first spring is adapted to be pressed between the inner end head of the pressure-resistant conduit and the nut.

[0009] In a preferred example of the present invention, it can be further configured that: the sliding column is composed of a T-shaped upright column and an arc-shaped slider, and the arc-shaped slider is adapted to be snap-fitted inside the ring rail.

[0010] In a preferred example of the present invention, it can be further configured that: hexagon socket sets are provided inside the end plates on both sides of the reinforcing ring pad, and the hexagon socket sets are installed on the threaded section of the extension screw rod.

[0011] In a preferred example of the present invention, it can be further configured that: two symmetrically distributed limiting sliding grooves are formed on the outer wall of the pressure-resistant conduit, and the two slide bars are adapted to be installed in the two limiting sliding grooves; The slide bar is integrally in a U-shaped structure.

[0012] In a preferred example of the present invention, it can be further configured that: the base is composed of a stability-increasing pad part and two L-shaped support plates, and a horizontal hole is formed in the L-shaped support plate; One end of the end rod away from the slider is adapted to penetrate through the horizontal hole in the L-shaped support plate.

[0013] In a preferred example of the present invention, it can be further configured that: a U-shaped groove is formed inside the limit frame, and a vertical shaft is provided at one end of the U-shaped groove away from the slider; An oval-shaped backing plate is provided in the middle of the first support frame, and the vertical shaft is movably installed in the groove inside the oval-shaped backing plate.

[0014] In a preferred example of the present invention, it can be further configured that: an anti-slip coating is provided on the outer surface of the hole pressing end head, and inclined grooves are formed at both ends of the hole pressing end head.

[0015] In a preferred example of the present invention, it can be further configured that: threaded concave holes are formed at both ends of the base, and a clamping piece is installed on one side of the base away from the hole pressing end head, and the two clamping pieces are respectively installed in the first pull rod and the second pull rod.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. In the present invention, a pressure-resistant catheter is provided, and a hole direction adjusting mechanism is arranged outside the pressure-resistant catheter. After the nut on the threaded section inside the pressure-resistant catheter is adjusted, the hole direction adjusting mechanism will be extruded by the nut and extend outwards. At this time, the two pressure hole ends symmetrically distributed can perform hole expanding operations on the selected part of the rubber sheath. When the core rod pushes the two pull rods to extend and performs side-turning adjustment on the two pressure hole ends, it is convenient for the pressure hole ends to quickly and conveniently withdraw from the deformed cavity of the sheath after hole expansion.

[0017] 2. In the present invention, a hole depth control mechanism is arranged outside the pressure-resistant catheter. As the selected lengthening screw rotates and boosts the slide bar, the lever arm connected to the slide bar can apply a thrust to one set of slide table components. Finally, the limit frame installed on this set of slide table components can perform side-turning center adjustment on one of the support frames, so as to ensure that the pressure hole end can perform variable-depth adjustment on the selected part of the sheath.

[0018] 3. In the present invention, the handle sleeve and the ring rail are used as the rotating platform of the hole expanding device. After the pressure hole ends extend outwards and expand the sheath, the two expanded pressure hole ends will rotate along the selected part of the sheath. Finally, it can be ensured that the device can be forced to rotate automatically after being additionally adapted to an electric expansion mechanism to improve the roundness of the hole-expanded part of the sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram when the present invention is in use; Figure 2 is a bottom view schematic diagram of the present invention; Figure 3 is an exploded schematic diagram of the hole direction adjusting mechanism of the present invention; Figure 4 is a schematic diagram of the hole expanding propulsion mechanism of the present invention; Figure 5 for the present invention Figure 4 is an enlarged schematic diagram at A in; Figure 6 for the present invention Figure 4 is an enlarged schematic diagram at B in; Figure 7 is an exploded schematic diagram of the hole depth control mechanism of the present invention; Figure 8 for the present invention Figure 7 is an enlarged schematic diagram at C in.

[0020] Reference numerals: 100. Reaming propulsion mechanism; 110. Handle sleeve; 120. Ring track; 130. Compression-resistant catheter; 140. Slide post; 150. First spring; 160. Nut; 170. Core rod; 180. First pull rod; 190. Second pull rod; 200. Hole depth control mechanism; 210. Reinforcing ring gasket; 220. Extended screw rod; 230. Slide bar; 240. Lever arm; 250. Base; 260. Locking bolt; 270. Slide table assembly; 271. Slide block; 272. Guide rod; 273. End rod; 274. Second spring; 280. Limit bracket; 300. Hole direction adjustment mechanism; 310. Boosting sleeve; 320. First support frame; 330. Second support frame; 340. Chuck; 350. Base; 360. Hole pressing end; Specific embodiments

[0021] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention.

[0023] The following describes a multi-directional reaming device for a rubber sheath of an automotive wiring harness provided by some embodiments of the present invention with reference to the accompanying drawings.

[0024] Embodiment 1: Combined Figures 1 to 8 As shown, a multi-directional reaming device for a rubber sheath of an automotive wiring harness provided by the present invention includes a reaming propulsion mechanism 100, a hole depth control mechanism 200 provided in the reaming propulsion mechanism 100, and a hole direction adjustment mechanism 300 provided on the reaming propulsion mechanism 100. The reaming propulsion mechanism 100 is used to provide a reaction support platform for reaming the rubber sheath. The hole depth control mechanism 200 is used to provide a pushing platform for the depth of reaming by the hole direction adjustment mechanism 300. The hole direction adjustment mechanism 300 is used to perform smooth reaming on a selected part of the rubber sheath.

[0025] The reaming propulsion mechanism 100 includes a compression-resistant catheter 130, and a through hole is opened inside the compression-resistant catheter 130. A core rod 170 is movably installed in the through hole, and a first pull rod 180 and a second pull rod 190 are movably installed at the inner end of the core rod 170 and are in a stacked state; The hole direction adjustment mechanism 300 includes a boosting sleeve 310 provided on the threaded section of the compression-resistant catheter 130, a first support frame 320 movably installed at one end of the boosting sleeve 310, and a second support frame 330 movably installed at the other end of the boosting sleeve 310; Chucks 340 are provided at both ends of the first support 320 and the second support 330 away from the pressure boosting sleeve 310. A base 350 is provided inside the chuck 340, and a hole pressing end 360 is installed on the threaded section of the base 350. An anti-slip coating is provided on the outer surface of the hole pressing end 360, and inclined grooves are provided at both ends of the hole pressing end 360.

[0026] Threaded concave holes are provided at both ends of the base 350, and a clamping piece is installed on one side of the base 350 away from the hole pressing end 360. The two clamping pieces are respectively installed in the first pull rod 180 and the second pull rod 190.

[0027] After the pressure boosting sleeve 310 is pressed and horizontally moves along the threaded section of the pressure-resistant conduit 130, the first support 320 and the second support 330 movably installed on the pressure boosting sleeve 310 will push the combined chuck 340, base 350 and hole pressing end 360. At this time, the two hole pressing ends 360 that are relatively pressed and equally spaced expanded can perform a constant pressure hole expanding treatment on the selected part of the rubber sheath. After the sheath hole expansion is completed, according to the expansion requirements of the remaining parts of the sheath, by forcibly extending the core rod 170, the first pull rod 180 and the second pull rod 190 movably installed at the inner end of the core rod 170 will perform a side turning adjustment on the two hole pressing ends 360. When the two hole pressing ends 360 become loose due to the traction of the first pull rod 180 and the second pull rod 190, the two loose hole pressing ends 360 can quickly disengage from the rubber sheath hole expansion part.

[0028] Embodiment 2: Combined with Figures 3 to 4 As shown, on the basis of Embodiment 1, the hole expanding propulsion mechanism 100 further includes two sliding columns 140 fixedly installed at the outer end of the pressure-resistant conduit 130, a ring rail 120 movably installed outside the two sliding columns 140, and a handle sleeve 110 installed at the inner end of the ring rail 120. A nut 160 and a first spring 150 are provided on the threaded section of the pressure-resistant conduit 130, and the first spring 150 is adapted to bear pressure between the inner end head of the pressure-resistant conduit 130 and the nut 160. The sliding column 140 is composed of a T-shaped column and an arc-shaped slider, and the arc-shaped slider is adapted to be clamped inside the ring rail 120. Two symmetrical limiting sliding grooves are provided on the outer wall of the pressure-resistant conduit 130, and two sliding strips 230 are adapted to be installed in the two limiting sliding grooves. The sliding strip 230 has an overall U-shaped structure.

[0029] After the two perforating end heads 360 are pressed and expand outward, the two expanded perforating end heads 360 can extrude the rubber sheath. As the selected part of the sheath is extruded until the hole is expanded, according to the requirements of the expanded part of the sheath, the compression-resistant catheter 130 can drive the two perforating end heads 360 to perform circumferential hole expansion treatment along the selected part of the sheath by forced rotation.

[0030] Embodiment 3: Combined with Figures 3 to 8 As shown, in the above embodiment, the hole depth adjustment mechanism 200 includes a base 250 arranged outside the compression-resistant catheter 130, a locking bolt 260 installed in the internal threaded hole of the base 250, and two sets of slide table assemblies 270 movably installed in the two slide ways of the base 250.

[0031] Preferably, after the locking bolt 260 is tightened clockwise, the tightened base 250 will be fixed on the threaded section of the compression-resistant catheter 130. When it is necessary to further increase the expansion width of the two perforating end heads 360, the locking bolt 260 can be loosened until the base 250 moves along the threaded section of the compression-resistant catheter 130 towards the first spring 150.

[0032] The slide table assembly 270 includes a slider 271, an end rod 273 installed at one end of the slider 271, a second spring 274 arranged outside the end rod 273, and a guide rod 272 arranged inside the slider 271; On one side outside the slider 271, a lever 240 is movably installed. At the other end of the lever 240, a slide bar 230 is provided. Inside the slide bar 230, an extended screw 220 is movably installed. On the threaded section of the extended screw 220, a reinforcing ring pad 210 is provided, and the reinforcing ring pad 210 is installed at the outer end of the compression-resistant catheter 130; On the other side outside the slider 271, a limit frame 280 is installed; Hexagonal screw sleeves are provided in the end plates on both sides of the reinforcing ring pad 210, and the hexagonal screw sleeves are installed on the threaded section of the extended screw 220; The base 250 is composed of a stability-increasing pad and two L-shaped support plates, and a horizontal hole is provided in the L-shaped support plate; The end of the end rod 273 away from the slider 271 is adaptively penetrated into the horizontal hole in the L-shaped support plate; The inside of the limit frame 280 is provided with a U-shaped groove, and a vertical shaft is provided at the end of the U-shaped groove away from the slider 271; An oval-shaped cushion plate is provided in the middle of the first support frame 320, and the vertical shaft is movably installed in the groove inside the oval-shaped cushion plate.

[0033] When the slider 230 approaches the base 250 along the limiting chute on the outer wall of the compression-resistant conduit 130, the slider 271 will expand outwards. After one or two selected sliders 271 are pushed to expand outwards, the tipping centers of the first support frame 320 and the second support frame 330 that are vertically shaft-constrained and pressured can be adjusted. Thus, the two pressure hole ends 360 can perform a variable hole depth treatment on the selected part of the rubber sheath, so as to improve the adaptability and encapsulation of the rubber sheath after variable hole expansion for bundled wire bundles of different thicknesses.

[0034] The working principle and usage process of the present invention: The pre-adjusted nut 160 rotates counterclockwise. At this time, the nut 160 will approach the base 250 along the threaded section of the compression-resistant conduit 130. At this time, the first spring 150 that loses pressure will push the pressure-increasing sleeve 310 to move horizontally along the threaded section of the compression-resistant conduit 130. The first support frame 320 and the second support frame 330 movably installed on the pressure-increasing sleeve 310 will be pressured and drive the combined collet 340, the base 350, and the pressure hole end 360 to move closer to the center until the two pressure hole ends 360 shrink to the smallest state. Then the user needs to control the handle sleeve 110 and manipulate the two pressure hole ends 360 to be delivered towards the end of the rubber sheath to be expanded. Until the two pressure hole ends 360 are inside the rubber sheath, the nut 160 can be controlled to rotate clockwise again. The nut 160 will push the pressure-increasing sleeve 310 to continuously approach the first spring 150. At this time, the first support frame 320 and the second support frame 330 expand outwards in an outward V-shaped structure under the limiting constraint of the two limiting frames 280. Finally, the combined collet 340, the base 350, and the pressure hole end 360 can apply an extrusion pressure outwards to the part of the rubber sheath to be expanded. As the pressure gradually increases, the selected part of the sheath can be subjected to an outward hole expansion operation. After the selected part of the sheath is expanded, the stretching of the first pull rod 180 and the second pull rod 190 is adjusted by controlling the telescoping of the core rod 170. At this time, the two symmetrically distributed pressure hole ends 360 will tip along the axis of the collet 340. The two pressure hole ends 360 can apply an outward tension pressure to the expanded part of the sheath until the expanded part of the sheath is further expanded and enlarged to facilitate the quick withdrawal of the pressure hole ends 360 from the expanded sheath. When the reaming depth and the reaming range of a certain part of the rubber sheath need to be adjusted, one of the lengthening screws 220 can be adjusted. At this time, after the lengthening screw 220 extends along the inside of the reinforcing ring gasket 210, it will push the slide bar 230 to extend reciprocally, and the other end of the slide bar 230 will apply an extrusion force to the force arm 240. Finally, one set of slide table assemblies 270 will extend outward along the slide way at one end of the base 250. At this time, the outwardly extended and moved slide table assembly 270 can cooperate with the limit frame 280 to adjust the flipping center of the first support frame 320 or the second support frame 330, so as to realize the reaming treatment with a gradually changing depth at each point of the rubber sheath, and the hole positions can also be expanded in multiple directions.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multi-directional hole expanding device for a rubber sheath of an automotive wiring harness, comprising a hole expanding propulsion mechanism (100), characterized in that, It further includes a hole depth control mechanism (200) disposed within the reaming propulsion mechanism (100) and a hole direction adjustment mechanism (300) disposed on the reaming propulsion mechanism (100); The reaming propulsion mechanism (100) includes a pressure-resistant conduit (130), and a through hole is formed inside the pressure-resistant conduit (130). A core rod (170) is movably installed in the through hole, and a first pull rod (180) and a second pull rod (190) which are movably installed at the inner end of the core rod (170) and are in a stacked state; The hole direction adjustment mechanism (300) includes a pressure booster sleeve (310) disposed on the threaded section of the pressure-resistant conduit (130), a first support frame (320) movably installed at one end of the pressure booster sleeve (310), and a second support frame (330) movably installed at the other end of the pressure booster sleeve (310); Clamping heads (340) are provided at both ends of the first support frame (320) and the second support frame (330) away from the pressure booster sleeve (310). A base (350) is provided inside the clamping head (340), and a hole pressing end head (360) is installed on the threaded section of the base (350).

2. The multi-directional hole expanding device for a rubber sheath of an automotive wire harness according to claim 1, characterized in that, The hole depth control mechanism (200) includes a base (250) disposed outside the pressure-resistant conduit (130), a locking bolt (260) installed in the internal threaded hole of the base (250), and two sets of slide table assemblies (270) movably installed in two slide ways of the base (250); The slide table assembly (270) includes a slider (271), an end rod (273) installed at one end of the slider (271), a second spring (274) disposed outside the end rod (273), and a guide rod (272) disposed inside the slider (271); A force arm (240) is movably installed on one side outside the slider (271). A slide bar (230) is provided at the other end of the force arm (240). An extended screw rod (220) is movably installed inside the slide bar (230). A reinforcing ring gasket (210) is provided on the threaded section of the extended screw rod (220), and the reinforcing ring gasket (210) is installed at the outer end of the pressure-resistant conduit (130); A limiting frame (280) is installed on the other side outside the slider (271).

3. The multi-directional hole expanding device for rubber sheaths of automotive wire harnesses according to claim 1, wherein, The reaming propulsion mechanism (100) further includes two sliding columns (140) fixedly installed at the outer end of the pressure-resistant conduit (130), a ring rail (120) movably installed outside the two sliding columns (140), and a handle sleeve (110) installed at the inner end of the ring rail (120); A nut (160) and a first spring (150) are provided on the threaded section of the pressure-resistant conduit (130), and the first spring (150) is adapted to be pressed between the inner end head of the pressure-resistant conduit (130) and the nut (160).

4. A multi-directional hole expanding device for a rubber sheath of an automotive wire harness according to claim 3, characterized in that, The sliding column (140) is composed of a T-shaped column and an arc-shaped slider, and the arc-shaped slider is adapted to be clamped inside the ring rail (120).

5. A multi-directional hole expanding device for a rubber sheath of an automotive wire harness according to claim 2, characterized in that, Hexagonal screw sleeves are provided inside the end plates on both sides of the reinforcing ring gasket (210), and the hexagonal screw sleeves are installed on the threaded section of the extended screw rod (220).

6. The multi-directional hole expanding device for rubber sheaths of automotive wire harnesses according to claim 2, wherein, The outer wall of the pressure-resistant conduit (130) is provided with two symmetrically distributed limiting chutes, and the two slide bars (230) are adaptively installed in the two limiting chutes; The slide bar (230) is integrally in a U-shaped structure.

7. A multi-directional hole expanding device for a rubber sheath of an automotive wiring harness according to claim 2, characterized in that, The base (250) is composed of a stability-increasing cushion member and two L-shaped supporting plates, and a transverse hole is provided in the L-shaped supporting plate; One end of the end rod (273) away from the slider (271) is adaptively penetrated into the transverse hole in the L-shaped supporting plate.

8. The multi-directional hole expanding device for rubber sheaths of automotive wire harnesses according to claim 2, characterized in that, A U-shaped groove is provided inside the limiting frame (280), and a vertical shaft is arranged at one end of the U-shaped groove away from the slider (271); An oval cushion plate is arranged in the middle of the first support frame (320), and the vertical shaft is movably installed in the groove inside the oval cushion plate.

9. The multi-directional reaming device for rubber sheaths of automotive wire harnesses according to claim 1, characterized in that, The outer surface of the hole-pressing end head (360) is provided with an anti-slip coating, and inclined grooves are provided at both ends of the hole-pressing end head (360).

10. The multi-directional hole expanding device for rubber sheaths of automotive wire harnesses according to claim 1, characterized in that, Threaded concave holes are provided at both ends of the base (350), and a clamping piece is installed on one side of the base (350) away from the hole-pressing end head (360), and the two clamping pieces are respectively installed in the first pull rod (180) and the second pull rod (190).

Images