A skin cutting device for new energy high-voltage wire harness
By incorporating a nested drive shaft and cam cutter assembly design, combined with a servo motor and photoelectric limiter, the problem of inaccurate cutting of traditional cutting equipment when dealing with complex wire harnesses is solved, achieving high-precision and high-efficiency cutting results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YINGKE INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional rigid cutting equipment is difficult to adapt to high-voltage wire harnesses of different specifications and materials, resulting in inaccurate control of cutting depth, uneven cuts, affecting electrical performance and potentially damaging the internal wires of the wire harness, while also resulting in low production efficiency.
It adopts a nested drive shaft and cam cutter assembly design, combined with a servo motor and photoelectric limiter, to achieve precise cutting and stable operation, and adapt to the cutting needs of wire harnesses of different specifications.
It improves cutting precision and stability, reduces scrap rate, ensures product quality, and increases production efficiency.
Smart Images
Figure CN224384925U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage wiring harness technology for new energy vehicles, specifically a stripping device for high-voltage wiring harnesses in new energy vehicles. Background Technology
[0002] With the rapid development of the global new energy vehicle industry, new energy vehicles have gradually become the mainstream development direction of the automotive industry due to their advantages such as cleanliness, environmental protection, and high energy efficiency. As a key component for power transmission in new energy vehicles, the quality of high-voltage wiring harnesses directly affects the safety and reliability of the vehicle. High-voltage wiring harnesses are usually composed of multiple strands of wires and multiple layers of inner and outer insulation. In the production process, accurately cutting off the inner and outer insulation of the wiring harness is an important step to ensure reliable connection between the wiring harness and the connector and to achieve high-efficiency conductivity.
[0003] Traditional wire harness cutting equipment mostly uses fixed blades and rigid cutting modes, which are difficult to adapt to the cutting needs of inner and outer sheaths of high-voltage wire harnesses of different specifications and materials. Since the wire diameter, outer sheath material and number of layers of high-voltage wire harnesses in new energy vehicles vary greatly, existing rigid cutting equipment is prone to inaccurate control of cutting depth or uneven cuts when dealing with complex wire harness structures. This not only affects the electrical performance of the wire harness, but may also damage the internal wires of the wire harness, creating safety hazards. In addition, when switching the production of different wire harness models, it is necessary to frequently change blades and adjust parameters, resulting in low production efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a cutting device for high-voltage wire harnesses in new energy, in order to solve the problems mentioned in the background art, such as the inaccurate control of cutting depth or uneven cut when dealing with complex wire harnesses. This not only affects the electrical performance of the wire harness, but may also damage the internal wires of the wire harness, creating safety hazards. Furthermore, when switching the production of different wire harness models, it is necessary to frequently change the cutting tools and adjust the parameters, resulting in low production efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for high-voltage wiring harnesses of new energy, comprising a support frame one, which is a rectangular base structure, a support frame two is vertically fixedly installed at one end of the support frame one, and a circular hole is opened in the support frame two, and an installation ring is installed on the surface of the support frame two by bolts, the center of the installation ring is aligned with the center of the support frame two, and the support frame one and the support frame two together constitute a support structure.
[0006] The support frame 1 has a rectangular block inside, and servo motor 1, servo motor 2 and servo motor 3 are placed on the outer wall of the rectangular block. The rectangular block of the support frame 1 is rotatably connected to the main drive shaft 2, and the main drive shaft 2 passes through the circular hole of the support frame 2.
[0007] The outer wall of the second main drive shaft is fitted with the third main drive shaft, and the outer wall of the third main drive shaft is fitted with the first main drive shaft. The first main drive shaft, the second main drive shaft, and the third main drive shaft constitute a nested drive shaft. A cam cutter assembly is fixedly installed on the nested drive shaft. The cam cutter assembly is connected to the limiting plate by bolts. The surface of the first main drive shaft is fitted with the first main shaft gear, the surface of the second main drive shaft is fitted with the second main shaft gear, and the surface of the third main drive shaft is fitted with the third main shaft gear.
[0008] By adopting the above technical solution, the design of nested drive shafts and cam cutter assemblies provides a stable foundation for the peeling device. The cooperation of each component ensures precise power transmission, adapts to different specifications of wire harnesses, achieves precise peeling, and ensures the overall stable operation and functional realization of the equipment.
[0009] Preferably, photoelectric limiters are installed on the two side walls of the support frame via steel brackets, and the photoelectric limiters are located on both sides of the nested transmission shaft.
[0010] Using the above technical solution, photoelectric limiters are installed on both sides of the nested drive shaft to monitor its position in real time, ensuring that the movements of each component are precise and in place, effectively avoiding problems such as overtravel of component movement, and improving cutting accuracy and equipment operation safety.
[0011] Preferably, the cam cutter assembly includes an inner layer cutter, an outer layer clamping cutter, and a sliding pin, wherein the sliding pin is fixedly inserted into three surfaces of the main drive shaft, and the sliding pin passes through the inner layer cutter and the outer layer clamping cutter, and slides within the inner layer cutter and the outer layer clamping cutter.
[0012] By adopting the above technical solution, the sliding pin connection method in the cam cutter assembly allows the inner layer cutter and the outer layer clamping cutter to slide flexibly, which is conducive to precise positioning and clamping of the wire harness, creating conditions for precise cutting and ensuring cutting quality.
[0013] Preferably, the inner layer cutter and the outer layer clamping cutter are arranged in parallel, and the inner layer cutter and the outer layer clamping cutter are connected by the same bolt that passes through and rotates through them, and the bolt is installed on one end face of the main drive shaft.
[0014] By adopting the above technical solution, the specific rotational connection method of the inner layer cutter and the outer layer clamping cutter enables the two to move in coordination, maintain a stable posture during clamping and cutting, and improve cutting accuracy and reliability.
[0015] Preferably, a bearing is provided between the outer wall of the main drive shaft and the support frame, and the main shaft gear on the surface of the main drive shaft meshes with the transmission gear, and the transmission gear is connected to the drive shaft of the servo motor.
[0016] The above technical solution uses bearings between the main drive shaft 1 and the support frame 2 to reduce rotational friction. Combined with gear transmission, this allows the servo motor 1 to transmit power to the main drive shaft 1 efficiently and stably, ensuring smooth rotation of the nested drive shaft.
[0017] Preferably, the second main shaft gear is surface-engaged with the second transmission gear, and the second transmission gear is connected to the transmission shaft of the second servo motor.
[0018] By adopting the above technical solution, the meshing of the second spindle gear and the second transmission gear enables precise power transmission from the second servo motor to the second main drive shaft, accurately controlling the inner layer cutter's movement and meeting the power and precision requirements of the cutting process.
[0019] Preferably, the main shaft gear three is surface-meshingly connected to the transmission gear three, and the transmission gear three is connected to the transmission shaft of the servo motor three.
[0020] Using the above technical solution, the meshing of the main shaft gear three and the transmission gear three accurately transmits the power of the servo motor three to the main drive shaft three, precisely controlling the action of the outer clamping cutter and ensuring accurate clamping and positioning.
[0021] Compared with the prior art, the beneficial effects of this utility model are: the sheathing device for high-voltage wiring harnesses in new energy:
[0022] 1. This device uses three servo motors working together to control the rotation speed of main drive shaft one, main drive shaft two, and main drive shaft three, respectively. This precisely controls the movement of the inner cutting blade and the outer clamping cutting blade in the cam cutter assembly. By utilizing the cam structure and gear transmission, the concentricity of the cutter during movement is increased, avoiding problems such as uneven cutting caused by concentricity deviation. This further improves the stability and accuracy of cutting, reduces the scrap rate, and enables precise positioning of the cutting position. This effectively improves cutting accuracy, meets the high-precision production requirements of new energy high-voltage wire harnesses, and ensures product quality.
[0023] 2. Support frame one and support frame two form a stable support structure, providing reliable support for the entire device. The bearings installed between main drive shaft one and support frame two reduce rotational friction. Combined with gear transmission, this ensures the smooth rotation of the nested drive shaft, ensuring the relative position accuracy of each component during operation and improving the reliability and stability of the equipment.
[0024] 3. Photoelectric limiters installed on the two side walls of the support frame monitor the position of the nested drive shaft and related components in real time. When the components move to the preset position, the photoelectric limiters promptly send a signal to the control system. At the same time, combined with the monitoring of parameters such as the torque of the servo motor, the positioning and rotary cutting tools can be monitored more precisely. Through these monitoring methods, it is possible to accurately determine whether the processed products are qualified, promptly detect quality problems in the production process, and improve the product yield. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;
[0026] Figure 2 This is a three-dimensional structural diagram of the overall transmission state of this utility model;
[0027] Figure 3 This is a schematic diagram of the transmission structure between the transmission gears and workpieces according to this utility model;
[0028] Figure 4 This is a three-dimensional structural diagram of the connection between the cam cutter assembly and the transmission gear workpiece of this utility model;
[0029] Figure 5 This is a three-dimensional structural diagram of the cam cutter assembly of this utility model.
[0030] Figure 6 This is a schematic diagram of the limiting plate structure of this utility model.
[0031] In the diagram: 1. Support frame one; 2. Support frame two; 3. Mounting ring; 4. Cam cutter assembly; 401. Inner layer cutter; 402. Outer layer clamping cutter; 403. Sliding pin; 5. Limiting plate; 6. Main drive shaft one; 7. Main drive shaft two; 8. Main drive shaft three; 9. Main spindle gear one; 10. Main spindle gear two; 11. Main spindle gear three; 12. Transmission gear one; 13. Servo motor one; 14. Transmission gear two; 15. Servo motor two; 16. Transmission gear three; 17. Servo motor three; 18. Photoelectric limiter. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-6This utility model provides a technical solution: a cutting device for high-voltage wiring harnesses in new energy, including a support frame 1, a support frame 2, a mounting ring 3, a cam cutter assembly 4, an inner layer cutter 401, an outer layer clamping cutter 402, a sliding pin 403, a limiting plate 5, a main drive shaft 1 6, a main drive shaft 2 7, a main drive shaft 3 8, a main shaft gear 1 9, a main shaft gear 2 10, a main shaft gear 3 11, a transmission gear 1 12, a servo motor 1 13, a transmission gear 2 14, a servo motor 2 15, a transmission gear 3 16, a servo motor 3 17, and a photoelectric limiter 18;
[0034] Among them, support frame 1 is a rectangular base structure. Support frame 2 is vertically fixed at one end of support frame 1. Support frame 2 has a circular hole inside. Mounting ring 3 is installed on the surface of support frame 2 by bolts. The center of mounting ring 3 is aligned with the center of support frame 2. Support frame 1 and support frame 2 together form a support structure.
[0035] A rectangular block is provided inside the support frame 1, and servo motor 13, servo motor 2 15 and servo motor 3 17 are placed on the outer wall of the rectangular block. The rectangular block of the support frame 1 is rotatably connected to the main drive shaft 2 7, and the main drive shaft 2 7 passes through the round hole of the support frame 2 2. Photoelectric limiters 18 are installed on the side wall of the support frame 2 2 through steel brackets, and the photoelectric limiters 18 are on both sides of the nested drive shaft.
[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, servo motor 13, servo motor 25, and servo motor 37 are placed on the surface of the rectangular block of support frame 1 to maintain the stability of the installation position. Servo motor 13 serves as the basic power source, providing initial power for the rotation of the entire nested transmission shaft. Servo motor 25 and servo motor 37 are used to control the movement of the inner layer cutter 401 and the outer layer clamping cutter 402, respectively. Each servo motor is precisely adjusted in speed and controlled to start and stop by the control system to ensure the orderly progress of the peeling process.
[0037] Photoelectric limiters 18 are installed on the side walls of the second support frame via steel brackets. The photoelectric limiters 18 are located on both sides of the nested drive shaft. The photoelectric limiters 18 monitor the position information of the nested drive shaft and related components in real time. When the components move to the preset position, the photoelectric limiters 18 will promptly send a signal to the control system. The control system will adjust the parameters such as the speed of the servo motor according to the feedback signal, thereby ensuring that each action is executed accurately and guaranteeing the precision and stability of the cutting process.
[0038] A main drive shaft 3 (8) is fitted onto the outer wall of the second main drive shaft (7), and a main drive shaft 1 (6) is fitted onto the outer wall of the third main drive shaft (8). A bearing is installed between the outer wall of the first main drive shaft (6) and the second support frame (2). A main shaft gear 1 (9) on the surface of the first main drive shaft (6) meshes with a transmission gear 1 (12), and the transmission gear 1 (12) is connected to the transmission shaft of the first servo motor (13). A main shaft gear 2 (10) meshes with a transmission gear 2 (14), and the transmission gear 2 (14) is connected to the transmission shaft of the second servo motor (215). A main shaft gear 3 (11) meshes with a transmission gear 3 (16), and the transmission gear 3 (16) is connected to the transmission shaft of the third servo motor (317). The first main drive shaft (6), the second main drive shaft (7), and the third main drive shaft (8) constitute a nested drive shaft. A cam cutter assembly 4 is fixedly mounted on this nested drive shaft. The cam cutter assembly 4... The cam cutter assembly 4 is connected to the limiting plate 5 by bolts. It includes an inner layer cutter 401, an outer layer clamping cutter 402, and a sliding pin 403. The sliding pin 403 is fixedly inserted into the surface of the main drive shaft 8 and passes through the inner layer cutter 401 and the outer layer clamping cutter 402. The sliding pin 403 slides within the inner layer cutter 401 and the outer layer clamping cutter 402. The inner layer cutter 401 and the outer layer clamping cutter 402 are arranged in parallel and are rotatably connected by the same bolt. The bolt is installed on the end face of the main drive shaft 6. The surface of the main drive shaft 6 is fitted with a main shaft gear 9, the surface of the main drive shaft 7 is fitted with a main shaft gear 10, and the surface of the main drive shaft 8 is fitted with a main shaft gear 11.
[0039] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, in actual use, the new energy high-voltage wire harness passes through the hole opened in the limiting plate 5 and reaches the pre-set designated position. The limiting plate 5 not only plays the role of positioning the wire harness, but also helps to support the wire harness and prevent it from shaking during the cutting process.
[0040] Driven by servo motor 13, the main drive shaft 6 rotates through the meshing of transmission gear 12 and spindle gear 9. Due to the nested structure between main drive shaft 6, main drive shaft 7, and main drive shaft 8, the three rotate at the same speed under power transmission. At this time, the cam tool assembly 4, which is fixed on the nested drive shaft by sliding pin 403, remains stationary relative to the main drive shaft because there is no additional power to drive the tool assembly to move relative to the main drive shaft. Since servo motor 15 meshes with spindle gear 10 through transmission gear 14, and servo motor 17 meshes with spindle gear 11 through transmission gear 16, this gear transmission method can accurately transmit the power of the servo motor to the corresponding main drive shaft, realize precise control of the speed of the drive shaft, and thus provide accurate power support for the movement of the tool assembly.
[0041] When the outer clamping cutter 402 is in action, as the high-voltage wire harness is in place, the control system issues a command to increase the speed of the servo motor 3 17. The transmission shaft of the servo motor 3 17 drives the transmission gear 3 16 to rotate. The transmission gear 3 16 meshes with the main shaft gear 3 11, thereby accelerating the rotation of the main transmission shaft 3 8. Due to the specific cam structure between the cam cutter assembly 4 and the main transmission shaft, when the main transmission shaft 3 8 accelerates, the outer clamping cutter 402 slides along the sliding pin shaft 403 under the action of the cam structure, gradually approaching the high-voltage wire harness and achieving clamping and positioning. When the outer clamping cutter 402 reaches the designated clamping position, the photoelectric limiter 18 detects the corresponding signal and feeds it back to the control system. The control system controls the servo motor 3 17 to reduce its speed, so that it rotates at the same speed as the main transmission shaft 1 6 and the main transmission shaft 2 7, maintaining the clamping state of the outer clamping cutter 402.
[0042] After the outer clamping cutter 402 stably clamps the high-voltage wire harness, the control system controls the servo motor 15 to increase its speed, and the inner cutter 401 begins its cutting action. The drive shaft of the servo motor 15 drives the drive gear 14 to rotate. The drive gear 14 meshes with the main shaft gear 10, and the main drive shaft 7 begins to accelerate. With the help of the cam structure between the cam cutter assembly 4 and the main drive shaft, the inner cutter 401 slides along the sliding pin 403 to reach the designated cutting position. As the main drive shaft 7 continues to rotate, the inner cutter 401 begins to perform a rotary cutting operation on the outer or inner sheath of the high-voltage wire harness during the retraction process. During the rotary cutting process, the movement trajectory and cutting depth of the inner cutter 401 are precisely controlled by the cam structure and the speed of the servo motor 15.
[0043] After the inner layer cutter 401 completes the rotary cutting and reaches the designated position, the photoelectric limiter 18 detects the signal again and feeds it back to the control system. The control system issues a command to reduce the speed of servo motor 2 15 and servo motor 3 17. Under the action of the cam structure and the mechanical connection of the cutter assembly itself, the inner layer cutter 401 and the outer layer clamping cutter 402 slide open along the sliding pin shaft 403 and return to the initial position, releasing the cutting and clamping state of the high-voltage wire harness. After the cutter resets, the automation module operates again to remove the cut high-voltage wire harness from the cutting device, thus completing a complete cutting cycle. The removed high-voltage wire harness can be transported to subsequent processes for further processing or inspection.
[0044] Working Principle: When using this cutting device for high-voltage wiring harnesses in new energy applications, the high-voltage wiring harness is fixed by an automated module and fed into the cutting device, allowing it to reach a pre-set designated position and pass through the hole in the limiting plate 5. The servo motor 13 within the support frame 1, as part of the power mechanism, drives the main drive shaft 6 to rotate. Since the main drive shafts 6, 7, and 8 form a nested drive shaft, they rotate at the same speed under power transmission. At this time, the cam cutter assembly 4, fixed to the nested drive shafts by the sliding pin 403, remains stationary relative to the main drive shafts.
[0045] As the speed of servo motor 317 increases, it meshes with main shaft gear 311 fixed on main drive shaft 38 through transmission gear 316, causing main drive shaft 38 to rotate faster. Using the cam structure of cam cutter assembly 4 and main drive shaft, the outer clamping cutter 402 slides along sliding pin shaft 403 to achieve clamping and positioning of high voltage wire harness. When the outer clamping cutter 402 reaches the designated position, the speed of servo motor 317 decreases, and it rotates at the same speed as main drive shaft 16 and main drive shaft 27.
[0046] As the speed of servo motor 215 increases, it meshes with main shaft gear 210 fixed on main drive shaft 27 through transmission gear 214. Main drive shaft 27 starts to accelerate and rotate. With the help of cam structure, inner layer cutter 401 slides along sliding pin shaft 403 to reach the designated position. During the retraction process, inner layer cutter 401 begins to perform rotary cutting operation on the outer or inner sheath of high voltage wire harness.
[0047] After the inner layer cutter 401 completes the rotary cutting and reaches the designated position, the speed of servo motor 2 15 and servo motor 3 17 decreases. Under the action of the cam structure and mechanical connection, the inner layer cutter 401 and the outer layer clamping cutter 402 slide open along the sliding pin shaft 403 and return to the initial position. Then, the high-voltage wire harness that has been cut is taken out from the cutting device by the automation module, thus completing a complete cutting work cycle. During this process, the photoelectric limiter 18 installed on the side wall of the support frame 2 monitors the position of the nested transmission shaft and related components in real time to ensure that each action is executed accurately, ensuring the precision and stability of the cutting process and increasing the overall practicality.
[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sheathing device for high-voltage wiring harnesses in new energy applications, comprising: Support frame one (1) is a rectangular base structure. Support frame two (2) is vertically fixed at one end of support frame one (1). Support frame two (2) has a round hole in it. Support frame two (2) has a mounting ring (3) installed on its surface by bolts. The center of the mounting ring (3) is aligned with the center of the support frame two (2). Support frame one (1) and support frame two (2) together form a support structure. The feature is that: a rectangular block is provided inside the support frame one (1), and a servo motor one (13), a servo motor two (15) and a servo motor three (17) are placed on the outer wall of the rectangular block. The rectangular block of the support frame one (1) is rotatably connected to the main drive shaft two (7), and the main drive shaft two (7) passes through the round hole of the support frame two (2). The outer wall of the second main drive shaft is fitted with the third main drive shaft (8), and the outer wall of the third main drive shaft (8) is fitted with the first main drive shaft (6). The first main drive shaft (6), the second main drive shaft (7) and the third main drive shaft (8) constitute a nested drive shaft. A cam cutter assembly (4) is fixedly installed on the nested drive shaft. The cam cutter assembly (4) is connected to the limiting plate (5) by bolts. The surface of the first main drive shaft (6) is fitted with the first main shaft gear (9). The surface of the second main drive shaft (7) is fitted with the second main shaft gear (10). The surface of the third main drive shaft (8) is fitted with the third main shaft gear (11).
2. The skin cutting device for new energy high-voltage wire harness according to claim 1, characterized in that: The support frame 2 (2) has photoelectric limiters (18) installed on its side walls by steel brackets, and the photoelectric limiters (18) are on both sides of the nested transmission shaft.
3. The skin cutting device for new energy high-voltage wire harness according to claim 1, characterized in that: The cam cutter assembly (4) includes an inner layer cutter (401), an outer layer clamping cutter (402), and a sliding pin (403). The sliding pin (403) is fixedly inserted into the surface of the main drive shaft (8), and the sliding pin (403) passes through the inner layer cutter (401) and the outer layer clamping cutter (402), and slides within the inner layer cutter (401) and the outer layer clamping cutter (402).
4. The skin cutting device for new energy high-voltage wire harness according to claim 3, characterized in that: The inner layer cutter (401) and the outer layer clamping cutter (402) are arranged in parallel, and the inner layer cutter (401) and the outer layer clamping cutter (402) are connected by the same bolt through which they are rotated, and the bolt is installed on the end face of the main drive shaft (6).
5. The skin cutting device for new energy high-voltage wire harness according to claim 1, characterized in that: A bearing is provided between the outer wall of the main drive shaft (6) and the support frame (2), and the main shaft gear (9) on the surface of the main drive shaft (6) is meshed with the transmission gear (12), and the transmission gear (12) is connected to the transmission shaft of the servo motor (13).
6. The skin cutting device for new energy high-voltage wire harness according to claim 1, characterized in that: The main shaft gear two (10) is surface-meshingly connected to the transmission gear two (14), and the transmission gear two (14) is connected to the transmission shaft of the servo motor two (15).
7. The sheathing device for high-voltage wiring harnesses in new energy sources according to claim 1, characterized in that: The main shaft gear three (11) is surface-meshingly connected to the transmission gear three (16), and the transmission gear three (16) is connected to the transmission shaft of the servo motor three (17).