Harness dual-arm bellows cutting device

Abstract

The utility model provides a kind of harness double-arm bellows cutting device, belong to vehicle harness processing equipment technical field, including base, the top of base is provided with support, support is connected with support template;The top of support template is equipped with telescopic cylinder, the extension end of telescopic cylinder is connected with moving template after passing through support template;The bottom of moving template is provided with the cutting assembly that can cut off bellows, the top of base is provided with with cutting assembly cooperation material fixing module;Material fixing module includes material fixed pipe, material fixed pipe is provided with two, two material fixed pipes are symmetrically arranged, each material fixed pipe is installed on the top of base by fixed frame.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle wiring harness processing equipment, and in particular to a wiring harness double-arm corrugated tube cutting device. Background Technology

[0002] Double-wall corrugated pipes, with their excellent chemical stability, aging resistance, and structural strength, are widely used in various fields such as heavy-duty truck wiring harness protection and large-scale water supply projects. Among them, double-wall corrugated pipes for heavy-duty truck wiring harnesses require higher cutting precision, specification adaptability, and production efficiency due to the need to adapt to the complex layout of wiring harnesses of different vehicle models.

[0003] In the prior art, Chinese patent with authorization announcement number CN221641058U discloses a double-walled corrugated pipe cutting and fixing mechanism. This cutting and fixing mechanism uses a motor to drive a threaded rod to move a slider, which, together with a spring, enables the cutting table to be raised and lowered. It also uses a transmission structure such as a bevel gear and a transmission rod to drive a clamping block to fix the corrugated pipe, and then uses a motor and a gear rack to drive the cutting blade to complete the cutting.

[0004] While the aforementioned existing technologies can achieve the cutting and fixing of corrugated pipes, they still have the following shortcomings in the actual processing scenarios of double-wall corrugated pipes for heavy-duty truck wiring harnesses: First, the mechanism relies on the coordinated operation of multiple motors and hydraulic cylinders, resulting in a complex drive system. This not only increases the difficulty of equipment debugging and maintenance costs, but also limits the synchronization control precision of multiple power sources, easily leading to minor vibrations during the cutting process. This affects the cutting effect of the wiring harness, resulting in burrs or tilting on the cut surface of the corrugated pipe, potentially causing abnormal wear or assembly interference in the wiring harness. Second, the mechanism mainly achieves component positioning by sliding a slider along a groove, lacking a guiding mechanism and resulting in low alignment accuracy. Furthermore, the diameter of corrugated pipes for heavy-duty truck wiring harnesses is mostly 10-50mm, which is small and thin-walled. If the upper and lower cutting components are misaligned during cutting, it can easily cause deformation of the corrugated pipe or unevenness of the cut surface, directly affecting the assembly quality of the wiring harness. Third, the size of the cutting table and clamping block of the mechanism is fixed, and the adaptability of specifications is insufficient. If it is necessary to process corrugated pipes of different diameters, the entire support and clamping components need to be replaced, which is cumbersome and time-consuming, and it is difficult to meet the needs of rapid switching of corrugated pipes of multiple specifications in heavy truck wire harness production.

[0005] Therefore, considering the processing characteristics of double-wall corrugated pipes for heavy-duty truck wiring harnesses, there is an urgent need to develop a cutting device with a simple structure, high cutting accuracy, and strong specification adaptability to solve the aforementioned technical problems in the existing technology. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing double-wall corrugated pipe cutting and fixing mechanisms, such as complex drive systems, poor cutting effects, and limited range of specifications, and to provide a wire harness double-arm corrugated pipe cutting device.

[0007] This utility model is achieved through the following technical solution: a wire harness double-arm corrugated tube cutting device, including a base, a bracket on the top of the base, and a support template connected to the bracket above the base; a telescopic cylinder is installed on the top of the support template, and the extended end of the telescopic cylinder passes through the support template and is connected to a movable template below the support template; a cutting assembly capable of cutting corrugated tubes is provided at the bottom of the movable template; a material fixing module cooperating with the cutting assembly is provided on the top of the base; the material fixing module includes two material fixing tubes, which are symmetrically arranged; each material fixing tube is installed on the top of the base through a fixing bracket, and a space is formed between the two material fixing tubes that allows the cutting assembly to pass through.

[0008] When this device is working, the base stably supports the support template above through the bracket. The telescopic cylinder on the support template serves as the sole power source. Its telescopic movement directly drives the moving template to move up and down, thereby driving the cutting assembly at the bottom of the moving template to move synchronously. The corrugated pipe to be cut is inserted into the two symmetrical material fixing tubes of the material fixing module to achieve positioning and fixation. When the cutting assembly moves down with the moving template, it completes the cutting of the corrugated pipe through the gap between the two material fixing tubes.

[0009] This device significantly simplifies the overall structure of the power system through the design of a single telescopic cylinder, reducing the difficulty of equipment debugging and maintenance costs; two symmetrically arranged material fixing pipes can stably clamp the corrugated pipe from both sides, preventing deviation during cutting; the interval space provides a precise cutting channel for the cutting assembly, ensuring accurate cutting position, and solving the problem of insufficient cutting accuracy caused by poor synchronization of multiple power sources and unstable clamping in the existing technology.

[0010] A further improvement of this utility model is that the cutting assembly includes a blade holder and a blade, the top of the blade holder is connected to the bottom of the movable template, and the blade is obliquely fixed to the bottom of the blade holder.

[0011] A further improvement of this utility model is that the top of the tool holder is detachably connected to the bottom of the movable template by screws, and the bottom of the tool holder is detachably connected to the blade by pressure strips and screws.

[0012] A further improvement of this utility model is that the fixing frame includes a fixing plate, the fixing plate has an installation through hole, and the top of the fixing plate is screwed with a top screw that can extend into the installation through hole. The material fixing tube is detachably installed on the fixing plate through the installation through hole and the top screw.

[0013] A further improvement of this utility model is that a reinforcing rib is provided between the side of the fixing plate away from the cutting assembly and the base, and the reinforcing rib is integrally connected with the base and the fixing plate.

[0014] A further improvement of this utility model is that the top of the fixing plate is provided with a limiting unit capable of limiting the cutting assembly.

[0015] A further improvement of this utility model is that the limiting unit includes a limiting block, and two limiting blocks are provided. The two limiting blocks are arranged symmetrically, and the limiting blocks are detachably connected to the top of the fixing plate by screws.

[0016] A further improvement of this utility model is that the two ends of the movable template are respectively provided with guide mechanisms located on both sides of the cutting assembly and the material fixing module; the guide mechanisms are installed on the top of the base and are slidably connected to the movable template.

[0017] A further improvement of this utility model is that the guiding mechanism includes a guide post, which is fixed to the top of the base, and the top of the guide post is slidably connected to the movable template through a ball bearing sleeve.

[0018] A further improvement of this utility model is that the bracket includes four support rods, which are respectively located at the four corners of the base.

[0019] As can be seen from the above technical solutions, the beneficial effects of this utility model are: 1. This device simplifies the complex layout of existing multi-power source systems by using a single telescopic cylinder drive in conjunction with a guiding mechanism. This not only reduces equipment debugging and maintenance costs but also significantly improves operational stability. Under the precise guidance of the guide column and ball bearing sleeve, the moving template ensures that the cutting assembly and the material fixing module are always precisely aligned, effectively preventing cutting deviation and corrugated pipe deformation. This results in a smooth, burr-free cut surface, meeting the stringent requirements of heavy-duty truck wiring harnesses for corrugated pipe cutting precision. Simultaneously, the limit unit prevents tool damage caused by over-cutting, ensuring long-term stable operation of the equipment and significantly improving production safety and reliability.

[0020] 2. This device, with its detachable blades, blade holder, and material fixing tube design, allows for quick replacement of double-wall corrugated pipes of different diameters and wall thicknesses, solving the problem of requiring overall modification of existing equipment when changing specifications. The set screw fixing and screw connection structure eliminates the need for specialized tools for component assembly and disassembly, allowing ordinary operators to complete the process, significantly shortening changeover time and improving the equipment's response speed to multi-variety, small-batch production. Furthermore, the symmetrically arranged material fixing tubes and limit blocks ensure consistent corrugated pipe positioning, and the limit function achieves dimensional uniformity in batch processing, reducing errors caused by manual intervention and improving product qualification rate.

[0021] 3. This device forms a stable support system through the support rods at the four corners of the base and the reinforcing ribs at the bottom of the fixing plate. This system evenly transmits the cutting reaction force to the base, effectively resisting vibration and deformation during the cutting process and extending the equipment's service life. The compact frame design reduces the floor space required, facilitating integration into automated production lines for heavy-duty truck wiring harnesses and seamlessly connecting with other processing steps. The telescopic cylinder drive replaces traditional manual cutting, reducing labor intensity, improving cutting efficiency, and saving significant labor and time costs. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0024] Figure 2 This is a front view of a specific embodiment of the present utility model.

[0025] Figure 3 This is a schematic diagram of the cutting assembly according to a specific embodiment of the present invention.

[0026] Figure 4 This is a structural schematic diagram of the material fixing module according to a specific embodiment of this utility model.

[0027] In the diagram: 1. Base; 2. Bracket; 201. Support rod; 3. Support template; 4. Telescopic cylinder; 5. Moving template; 6. Cutting assembly; 601. Tool holder; 602. Blade; 603. Pressure strip; 7. Material fixing module; 701. Material fixing tube; 702. Fixing plate; 703. Mounting through hole; 704. Set screw; 705. Reinforcing rib; 8. Limiting unit; 801. Limiting block; 9. Guide mechanism; 901. Guide column; 902. Ball bearing guide sleeve. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Now refer to Figures 1-4The following is a description of a specific embodiment: The wire harness double-arm corrugated tube cutting device of this utility model includes a base 1. A bracket 2 is provided on the top of the base 1, and a support template 3 located above the base 1 is connected to the bracket 2. A telescopic cylinder 4 is installed on the top of the support template 3. The extended end of the telescopic cylinder 4 passes through the support template 3 and is connected to a movable template 5 located below the support template 3. The telescopic cylinder 4 can extend and retract to drive the movable template 5 to move up and down. A cutting assembly 6 capable of cutting corrugated tubes is provided at the bottom of the movable template 5. A material fixing module 7 cooperating with the cutting assembly 6 is provided on the top of the base 1. The material fixing module 7 includes two material fixing tubes 701, which are symmetrically arranged. Each material fixing tube 701 is installed on the top of the base 1 by a fixing bracket, and a space is formed between the two material fixing tubes 701 that allows the cutting assembly 6 to pass through.

[0030] When the device is working, the base 1 stably supports the support template 3 above through the bracket 2. The telescopic cylinder 4 on the support template 3 serves as the sole power source. Its telescopic movement directly drives the moving template 5 to move up and down, thereby driving the cutting assembly 6 at the bottom of the moving template 5 to move synchronously. The corrugated pipe to be cut is inserted into the two symmetrical material fixing pipes 701 of the material fixing module 7 to achieve positioning and fixation. When the cutting assembly 6 moves down with the moving template 5, the corrugated pipe is cut through the space between the two material fixing pipes 701.

[0031] This device significantly simplifies the overall structure of the power system through the design of a single telescopic cylinder 4, reducing the difficulty of equipment debugging and maintenance costs; the two symmetrically arranged material fixing pipes 701 can stably clamp the corrugated pipe from both sides, avoiding deviation during cutting; the interval space provides a precise cutting channel for the cutting assembly 6, ensuring accurate cutting position, and solving the problem of insufficient cutting accuracy caused by poor synchronization of multiple power sources and unstable clamping in the prior art.

[0032] Specifically, refer to Figure 3 The cutting assembly 6 includes a blade holder 601 and a blade 602. The top of the blade holder 601 is connected to the bottom of the movable template 5, and the blade 602 is obliquely fixed to the bottom of the blade holder 601.

[0033] The cutter holder 601 of the cutting assembly 6 is connected to the moving template 5 and moves down synchronously with the moving template 5. When the inclined blade 602 at the bottom of the cutter holder 601 contacts the bellows, it cuts into the pipe wall at an inclined angle.

[0034] This device, through the inclined blade 602, enables the cutting force to be applied to the corrugated pipe gradually along the inclined surface of the blade. Compared with vertical cutting, it is easier to cut the pipe wall, reduces cutting resistance, reduces the deformation of the corrugated pipe caused by excessive instantaneous force, and at the same time makes the cut surface smoother, reduces burrs, and meets the high precision requirements of heavy truck wiring harnesses for the cut surface of the corrugated pipe.

[0035] Specifically, refer to Figure 3 The top of the tool holder 601 is detachably connected to the bottom of the movable template 5 by screws, and the bottom of the tool holder 601 is detachably connected to the blade 602 by pressure strip 603 and screws.

[0036] The tool holder 601 is detachably connected to the movable template 5 by screws, and the blade 602 is detachably connected to the tool holder 601 by pressure strip 603 and screws; when it is necessary to replace the blade 602 or adjust the position of the tool holder 601, the screws can be loosened to disassemble and reinstall it.

[0037] This device, through its detachable structure, allows workers to quickly replace worn blades 602 or replace them with suitable blades 602 or blade holders 601 according to the specifications of the corrugated pipe, reducing equipment downtime for maintenance and improving production efficiency. The pressure bar 603 fixing method ensures that the blades 602 are firmly installed, preventing the blades 602 from loosening during cutting and affecting cutting accuracy.

[0038] Specifically, refer to Figure 4 The fixing frame includes a fixing plate 702, on which a mounting through hole 703 is provided, and a top screw 704 that can extend into the mounting through hole 703 is screwed to the top of the fixing plate 702. The material fixing tube 701 is detachably installed on the fixing plate 702 through the mounting through hole 703 and the top screw 704.

[0039] After the material fixing tube 701 is inserted into the mounting through hole 703 of the fixing plate 702, it is fixed by tightening the set screw 704. When it is necessary to replace the material fixing tube 701 with a different diameter, the old tube can be removed and the new tube can be installed by loosening the set screw 704, and then the set screw 704 is tightened to complete the fixation.

[0040] This device, through the cooperation of the set screw 704 and the mounting through hole 703, makes the disassembly and assembly of the material fixing tube 701 more convenient, and can quickly adapt to corrugated pipes of different diameters. It solves the cumbersome problem of having to replace the entire component when changing specifications in the prior art, and improves the adaptability of this device to corrugated pipes of multiple specifications.

[0041] Specifically, refer to Figure 2 and Figure 4 The top of the fixing plate 702 is provided with a limiting unit 8 that can limit the cutting assembly 6.

[0042] During the downward movement of the cutting assembly 6, the limiting unit 8 at the top of the fixed plate 702 limits the maximum downward movement distance of the cutting assembly 6 by contacting the moving template 5 or the knife holder 601.

[0043] This device, through the design of the limiting unit 8, can prevent the cutting assembly 6 from moving too low, avoid the blade 602 from colliding with the material fixing tube 701 or the base 1 and causing damage, and at the same time ensure that the length of the corrugated tube is consistent each time it is cut, improve the dimensional consistency of batch processing, and solve the length error problem caused by manual positioning in the prior art.

[0044] Specifically, refer to Figure 2 and Figure 4 The limiting unit 8 includes a limiting block 801. There are two limiting blocks 801, which are symmetrically arranged. The limiting blocks 801 are detachably connected to the top of the fixing plate 702 by screws.

[0045] Two symmetrically arranged limit blocks 801 are fixed to the top of the fixing plate 702 with screws. By replacing the limit blocks 801 with different thicknesses or adjusting their installation position, the limiting distance to the cutting assembly 6 can be changed.

[0046] This device, through the detachable limiting block 801, allows for more flexible adjustment of the limiting distance, adapting to the processing of corrugated pipes with different wall thicknesses and different cutting length requirements, further enhancing the versatility of the device; the symmetrical arrangement ensures that the cutting assembly 6 is subjected to balanced force on both sides, avoiding offset caused by unilateral limiting and ensuring limiting accuracy.

[0047] Specifically, refer to Figure 1 and Figure 2 The movable template 5 is provided with guide mechanisms 9 on both ends of the cutting assembly 6 and the material fixing module 7 respectively; the guide mechanisms 9 are installed on the top of the base 1 and are slidably connected to the movable template 5.

[0048] The guide mechanisms 9 at both ends of the movable template 5 are installed on the base 1 and slide in cooperation with the movable template 5. When the telescopic cylinder 4 drives the movable template 5 to move up and down, the guide mechanisms 9 restrict the lateral displacement of the movable template 5 and only allow it to move in the vertical direction.

[0049] The device, through the design of the guide mechanism 9, can ensure the stability of the movement trajectory of the moving template 5, avoid the cutting assembly 6 from shifting during movement, and make the alignment accuracy between the cutting assembly 6 and the material fixing module 7 higher. This solves the problem of cutting offset caused by low positioning accuracy of the slider groove in the prior art and improves the flatness of the cutting surface.

[0050] Specifically, refer to Figure 1 and Figure 2The guiding mechanism 9 includes a guide post 901, which is fixed to the top of the base 1. The top of the guide post 901 is slidably connected to the movable template 5 through a ball bearing guide sleeve 902.

[0051] The guide post 901 is fixed to the base 1. The movable template 5 is fitted onto the guide post 901 via a ball bearing guide sleeve 902. When the movable template 5 moves up and down, the ball bearing guide sleeve 902 and the guide post 901 achieve relative movement through ball rolling contact.

[0052] This device, through the design of the ball bearing guide sleeve 902, can convert sliding friction into rolling friction, which greatly reduces the resistance and wear of the moving template 5 during movement, making the movement smoother and more stable; at the same time, it reduces the vibration caused by friction, further improving the movement accuracy of the cutting assembly 6 and ensuring the stability of the cutting quality.

[0053] In one embodiment, reference Figure 4 A reinforcing rib 705 is provided between the side of the fixing plate 702 away from the cutting assembly 6 and the base 1. The reinforcing rib 705 is integrally connected with the base 1 and the fixing plate 702.

[0054] The reinforcing rib 705 between the side of the fixing plate 702 away from the cutting assembly 6 and the base 1 transmits the cutting reaction force borne by the fixing plate 702 to the base 1 through the integrated connection structure, thus dispersing the stress.

[0055] The device enhances the support strength and deformation resistance of the fixing plate 702 through the design of the reinforcing rib 705, preventing the corrugated pipe from shifting due to the shaking of the fixing plate 702 during cutting, thus ensuring cutting stability. The integrated connection structure reduces assembly gaps, further improving the overall structural rigidity of the material fixing module 7 and extending the service life of the device.

[0056] In one embodiment, specifically, referring to Figure 1 The bracket 2 includes four support rods 201, which are respectively located at the four corners of the base 1.

[0057] Four support rods 201 are respectively set at the four corners of the base 1 to jointly support the top support template 3, so that the support template 3 is subjected to uniform force and remains horizontal.

[0058] This device, through its four-corner support structure, ensures the stability of the support template 3, preventing deformation of the support template 3 due to uneven stress, thereby ensuring the installation accuracy of the telescopic cylinder 4 and the moving template 5. Compared with the distributed support structure, it is more compact, reduces the space occupied by the equipment, and is easy to integrate into the automated production line of heavy truck wiring harnesses, meeting the requirements of efficient mass production.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wire harness double-arm corrugated tube cutting device, comprising a base (1), characterized in that, The base (1) is provided with a bracket (2) at the top, and the bracket (2) is connected to a support template (3) located above the base (1); a telescopic cylinder (4) is installed at the top of the support template (3), and the extended end of the telescopic cylinder (4) passes through the support template (3) and is connected to a movable template (5) located below the support template (3); a cutting assembly (6) capable of cutting corrugated pipe is provided at the bottom of the movable template (5), and a material fixing module (7) cooperating with the cutting assembly (6) is provided at the top of the base (1); the material fixing module (7) includes a material fixing tube (701), and there are two material fixing tubes (701) arranged symmetrically; each material fixing tube (701) is installed on the top of the base (1) through a fixing frame, and a space is formed between the two material fixing tubes (701) that allows the cutting assembly (6) to pass through.

2. A harness double-arm bellows cut-off device according to claim 1, characterized by The cutting assembly (6) includes a blade holder (601) and a blade (602). The top of the blade holder (601) is connected to the bottom of the movable template (5), and the blade (602) is obliquely fixed to the bottom of the blade holder (601).

3. A wire bundle dual-arm bellows disconnect device according to claim 2, wherein, The top of the tool holder (601) is detachably connected to the bottom of the movable template (5) by screws, and the bottom of the tool holder (601) is detachably connected to the blade (602) by pressure strip (603) and screws.

4. A harness double-arm bellows cut-off device according to claim 1, characterized by The fixing frame includes a fixing plate (702), on which a mounting through hole (703) is provided, and a top screw (704) that can extend into the mounting through hole (703) is screwed to the top of the fixing plate (702). The material fixing tube (701) is detachably installed on the fixing plate (702) through the mounting through hole (703) and the top screw (704).

5. A wireline dual-arm bellows disconnect apparatus as defined in claim 4, wherein, A reinforcing rib (705) is provided between the side of the fixing plate (702) away from the cutting assembly (6) and the base (1). The reinforcing rib (705) is integrally connected with the base (1) and the fixing plate (702).

6. A wireline dual-arm bellows disconnect apparatus as defined in claim 4, wherein, The top of the fixing plate (702) is provided with a limiting unit (8) that can limit the cutting assembly (6).

7. A wireline dual-arm bellows disconnect apparatus as defined in claim 6, wherein, The limiting unit (8) includes a limiting block (801), and there are two limiting blocks (801) arranged symmetrically. The limiting blocks (801) are detachably connected to the top of the fixing plate (702) by screws.

8. A wireline dual-arm bellows disconnect apparatus as defined in claim 1, wherein, The two ends of the movable template (5) are respectively provided with guide mechanisms (9) located on both sides of the cutting assembly (6) and the material fixing module (7); the guide mechanism (9) is installed on the top of the base (1) and is slidably connected to the movable template (5).

9. A wire harness double-arm corrugated tube cutting device according to claim 8, characterized in that, The guiding mechanism (9) includes a guide post (901), which is fixed to the top of the base (1). The top of the guide post (901) is slidably connected to the movable template (5) through a ball bearing guide sleeve (902).

10. A wire harness double-arm corrugated tube cutting device according to claim 1, characterized in that, The support (2) comprises support rods (201), four of which are arranged at the four corners of the base (1).

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