Cutting machine for flexible shaft of automobile skylight
By introducing a limiting mechanism into the automotive sunroof flexible shaft cutting machine, the displacement problem caused by different diameters of the flexible shaft during the cutting process was solved, and a stable cutting effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海毅弋自动化科技有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-08
AI Technical Summary
Existing automotive sunroof flexible shaft cutting machines are prone to displacement of flexible shafts of different diameters when cutting them due to the lack of a downward pressure limiting mechanism in the discharge chute, which affects the cutting quality.
A limiting mechanism was designed, comprising an electric telescopic rod, a movable plate, a cutting blade, a sleeve, a movable rod, and a limiting wheel. The spring and the limiting wheel press down on the flexible shaft to limit its movement, ensuring stability during the cutting process.
It enables stable cutting of flexible shafts for automotive sunroofs of different diameters, avoiding cutting deviations and improving cutting quality.
Smart Images

Figure CN224209194U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive sunroof flexible shaft processing technology, and in particular relates to an automotive sunroof flexible shaft cutting machine. Background Technology
[0002] The automotive sunroof flexible shaft cutting machine is a machine used for cutting the flexible shaft of automotive sunroofs.
[0003] Existing automotive sunroof flexible shaft cutting machines typically include the following structure: an unwinding mechanism and a worktable. A guide mechanism, a cutting mechanism, and a guide frame are bolted to the upper surface of the worktable. One surface of the guide frame has a discharge groove. A mounting plate with several grooves is fixedly connected to one surface of the guide mechanism, and sliders are installed within these grooves. A connecting plate is fixedly connected to one surface of the slider, and a first drive mechanism is fixedly mounted on the other surface of the slider. A first guide wheel is rotatably connected to one surface of the mounting plate, and the output end of the first drive mechanism is fixedly connected to the first guide wheel. Several second guide wheels are also rotatably connected to one surface of the mounting plate. The unwinding mechanism unwinds the automotive sunroof flexible shaft. One end of the flexible shaft passes through the discharge groove and between the first and second guide wheels. The drive mechanism drives the first guide wheel to rotate, and the friction between the guide wheel and the flexible shaft propels the shaft forward. The unwinding mechanism includes an unwinding frame and a second drive mechanism. The unwinding frame is configured to support the unwinding shaft. The car sunroof flexible shaft is wound around the circumference of the unwinding shaft. The second drive mechanism drives the unwinding shaft to rotate, realizing the function of unwinding the flexible shaft. The cutting mechanism includes a "Z"-shaped mounting base, which is fixedly connected to the worktable by bolts. An electric telescopic rod is fixedly installed on the top surface of the inner wall of the mounting base. The output end of the electric telescopic rod is fixedly connected to a cutting blade by bolts. A guide seat is fixedly connected to one surface of the mounting base. One surface of the guide seat has a through-hole discharge groove, which is annular. A limit tube is fixedly connected to the other surface of the guide seat. The flexible shaft passes through the limit tube and is discharged through the discharge groove. The electric telescopic rod pushes the cutting blade downward to cut the flexible shaft. During cutting, the first guide wheel stops rotating, stopping the conveying of the car flexible shaft. After cutting is completed, the electric telescopic rod drives the cutting blade to move upward. Then, the first drive mechanism drives the first guide wheel to rotate, continuing to convey and cut the car flexible shaft. This movement is repeated to achieve the cutting of the car flexible shaft to a fixed length.
[0004] However, the aforementioned automotive sunroof flexible shaft cutting machine has the following drawbacks: Because the diameter of the automotive sunroof flexible shaft varies depending on the type of car, and the size of the flexible shaft is relatively small, a large gap occurs between the flexible shaft and the discharge chute when the shaft passes through it. Since the discharge chute lacks a downward pressure limiting mechanism, when the electric telescopic rod pushes the cutting blade downwards to cut the automotive sunroof flexible shaft, the shaft is easily displaced within the discharge chute due to the pressure of the cutting blade, causing a deviation from the original cutting point and affecting the cutting quality. To solve these problems, an automotive sunroof flexible shaft cutting machine is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a flexible shaft cutting machine for automotive sunroofs, thereby solving the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to a car sunroof flexible shaft cutting machine, comprising a worktable, a guide mechanism, a mounting base, and an electric telescopic rod. The electric telescopic rod is fixedly connected to the mounting base. A moving plate is fixedly connected to the output end of the electric telescopic rod. A cutting blade is fixedly connected to the bottom surface of the moving plate. A connecting plate is fixedly connected to one side of the moving plate. A guide seat is fixedly connected to the mounting base. A discharge groove is formed on the upper surface of the guide seat. A sleeve is fixedly connected to the bottom surface of the connecting plate. A spring is provided inside the sleeve. A displacement assembly is movably disposed inside the sleeve. The displacement assembly includes a limit plate and a movable rod. The movable rod is threadedly connected to the limit plate. A limit ring is bolted to the bottom end of the sleeve. A connecting frame is fixedly connected to the bottom surface of the movable rod. A limit wheel is connected inside the connecting frame. A strip groove is formed on the bottom surface of the inner wall of the discharge groove. Two guide wheels are rotatably connected inside the strip groove.
[0008] Preferably, the movable rod and the limiting plate are in sliding engagement with the sleeve.
[0009] Preferably, the limiting wheel is rotatably connected to the connecting frame.
[0010] Preferably, the diameters of the sleeve, movable rod, and limiting wheel are all smaller than the width of the discharge chute, and one surface of the cutting blade is in contact with one surface of the guide seat.
[0011] Preferably, the mounting base includes a horizontal portion A, a vertical portion and a horizontal portion B, wherein the horizontal portion A, the vertical portion and the horizontal portion B constitute an integral "Z"-shaped mounting base.
[0012] Preferably, the transverse part B is fixedly installed on the upper surface of the workbench by bolts, the electric telescopic rod is fixedly installed on the bottom surface of the transverse part A, and the guide seat is fixedly installed on one surface of the vertical part.
[0013] This utility model has the following beneficial effects:
[0014] This invention features a downward limiting function for automotive sunroof flexible shafts, making the cutting of these shafts more stable and adaptable to different diameters. By incorporating a movable rod, spring, and limiting wheel, the electric telescopic rod pushes the cutting blade downwards to cut the flexible shaft. Simultaneously, the movable rod drives the limiting wheel downwards, pressing and limiting the flexible shaft to fit against the inner wall of the discharge chute. This prevents displacement and ensures the cutting quality is maintained. During the upward movement of the cutting blade, the limiting wheel rotates without affecting subsequent material feeding and cutting of the automotive flexible shaft.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the bottom side structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the mounting base of this utility model;
[0020] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model;
[0021] Figure 5 This is a cross-sectional structural diagram of the limiting mechanism of this utility model;
[0022] Figure 6 This is a schematic diagram of the internal structure of the guide seat of this utility model.
[0023] The components represented by each number in the attached diagram are listed below: 1. Workbench; 2. Guide mechanism; 3. Mounting base; 4. Electric telescopic rod; 5. Moving plate; 6. Cutting blade; 7. Guide seat; 8. Discharge chute; 9. Connecting plate; 10. Sleeve; 11. Movable rod; 12. Connecting frame; 13. Limiting wheel; 14. Spring; 15. Limiting plate; 16. Strip groove; 17. Guide wheel. Detailed Implementation
[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Please see Figures 1-6 As shown, a prior art automotive sunroof flexible shaft cutting machine includes a worktable 1, a guide mechanism 2, a mounting base 3, and an electric telescopic rod 4. The unwinding mechanism unwinds the automotive flexible shaft and guides it through the guide mechanism. A mounting plate is fixedly connected to one surface of the guide mechanism, which has several grooves. A slider is installed in the grooves. A connecting plate is fixedly connected to one surface of the slider, and a drive mechanism is fixedly installed on the other surface of the slider. A first guide wheel is rotatably connected to one surface of the mounting plate, and the output end of the drive mechanism is fixedly connected to the first guide wheel. A number of second guide wheels are also rotatably connected to one surface of the mounting plate. The unwinding mechanism unwinds the automotive sunroof flexible shaft, and one end of the flexible shaft passes through the discharge groove and between the first and second guide wheels. The drive mechanism drives the first guide wheel to rotate, and the flexible shaft is conveyed by the friction between the guide wheel and the flexible shaft.
[0027] The present invention proposes a car sunroof flexible shaft cutting machine, which includes a worktable 1, a guide mechanism 2, a mounting base 3 and an electric telescopic rod 4. The guide mechanism 2 and the mounting base 3 are both fixedly connected to the worktable 1 by bolts, and the electric telescopic rod 4 is fixedly connected to the mounting base 3 by bolts.
[0028] The output end of the electric telescopic rod 4 is fixedly connected to a movable plate 5. The movable plate is fixedly connected to the electric telescopic rod 4 by bolts. The bottom surface of the movable plate 5 is fixedly connected to a cutting blade 6. The cutting blade 6 is fixedly connected to the movable plate 5 by bolts. One side of the movable plate 5 is fixedly connected to a connecting plate 9. The connection between the connecting plate 9 and the movable plate 5 can be fixed by bolts, or by integrated pressing or welding. The mounting base 3 is fixedly connected to a guide seat 7. The connection between the guide seat 7 and the mounting base 3 can be fixed by bolts, or by integrated pressing or welding. When the car sunroof flexible shaft is conveyed to the outside through the discharge chute 8 for a certain distance, the electric telescopic rod 4 pushes the movable plate 5 downward. The movable plate 5 further drives the cutting blade 6 downward, and the cutting blade 6 cuts the car sunroof flexible shaft.
[0029] Mounting base 3 includes a horizontal part A, a vertical part and a horizontal part B. The horizontal part A, the vertical part and the horizontal part B form an integrated "Z"-shaped mounting base 3. The horizontal part B is fixedly mounted on the upper surface of the workbench 1 by bolts. The electric telescopic rod 4 is fixedly mounted on the bottom surface of the horizontal part A. The guide seat 7 is fixedly mounted on one surface of the vertical part.
[0030] The upper surface of the guide seat 7 has a discharge groove 8, which is U-shaped. One surface of the cutting blade 6 is in contact with one surface of the guide seat 7. A sleeve 10 is fixedly connected to the bottom surface of the connecting plate 9. The sleeve 10 and the connecting plate 9 can be fixed by bolts or by welding. A spring 14 is installed inside the sleeve 10, and a displacement assembly is movably installed inside the sleeve 10. The displacement assembly includes a limiting plate 15 and a movable rod 11. The limiting plate 15 is inside the sleeve, and one end of the movable rod 11 extends into the sleeve 10 and is threadedly connected to the limiting plate 15. A limiting ring is fixedly connected to the bottom of the sleeve 10 by bolts and is slidably sleeved on the outside of the movable rod 11. During assembly, after the spring 14 and the limiting plate 15 are placed into the sleeve 10, the upper end of the movable rod 11 is aligned with the limiting plate 15. The threaded connection is fixed, and then the sliding limit ring is fixed to the bottom of the sleeve 10 by bolts. Its function is to limit the movable rod 11 and prevent it from falling out of the sleeve 10. The bottom surface of the movable rod 11 is fixedly connected to the connecting frame 12. The connection between the connecting frame 12 and the movable rod 11 can be fixed by bolts, or by integrated pressing or welding. The movable rod 11 and the limit plate 15 slide with the sleeve 10. The connecting frame 12 is connected to the limit wheel 13. The limit wheel 13 and the connecting frame 12 are rotatably connected by a shaft. The bottom surface of the inner wall of the discharge trough 8 is provided with a strip groove 16. Two guide wheels 17 are rotatably connected in the strip groove 16. Both guide wheels 17 are rotatably connected to the guide seat 7 by a shaft. In this way, the guide wheels 17 are exactly located in the strip groove 16.
[0031] During the downward cutting process of the cutting blade 6, the connecting plate 9 moves downward along with the moving plate 5. The connecting plate 9 further drives the sleeve 10 to move downward. The sleeve 10 pushes the limiting wheel 13 downward through the movable rod 11. Before the cutting blade 6 contacts the flexible shaft, since the length of the sleeve 10, movable rod 11, limiting wheel 13 and connecting frame 12 in their natural state is greater than the length between the cutting blade 6 and the moving plate 5, the limiting wheel 13 has already contacted the flexible shaft. The cutting blade 6 still needs to move downward. The movable rod 11 can slide inside the sleeve 10, allowing the cutting blade 6 to move up and down. The movement will not have any impact. Furthermore, as the cutting blade 6 continues to move downward, the sleeve 10 moves downward as well. The sleeve 10 and the movable rod 11 slide relative to each other, causing the movable rod 11 to push the limiting plate 15 to compress the spring 14. At the same time, the spring 14 provides a thrust to the movable rod 11, enabling it to push the limiting wheel 13 down to limit the flexible shaft. This allows the flexible shaft of the car sunroof to fit against the inner wall of the discharge chute 8, limiting the flexible shaft and preventing it from shifting during the cutting process, which would cause the cutting point to misalign and affect the cutting quality.
[0032] When the electric telescopic rod 4 drives the cutting blade 6 to rise and reset, the movable rod 11, sleeve 10 and spring 14 need to be reset by the spring 14. Then the sleeve 10 moves up and drives the limit wheel 13 to move up through the movable rod 11. The upward movement is relatively slow. When the cutting blade 6 resets and rises to the origin, the guide wheel will continue to rotate to transport the car flexible shaft. Since the limit wheel 13 and guide wheel 17 can rotate, rolling friction occurs between them and the car sunroof flexible shaft. When the cutting blade 6 rises and resets, the flexible shaft will continue to be transported towards the cutting blade 6. During this process, the limit wheel 13 resets one step slower than the cutting blade 6. The limit wheel 13 will still squeeze the flexible shaft. If the guide wheel 17 is not set, the flexible shaft will directly press against the inner wall of the discharge trough 8. The friction between the flexible shaft and the inner wall of the discharge trough 8 is static friction, which will affect the transport of the flexible shaft or even prevent it from being transported. The setting of the guide wheel 17 makes the friction between the flexible shaft and the guide wheel 17 dynamic friction, which will not affect the subsequent transport and cutting of the car flexible shaft.
[0033] The diameters of the sleeve 10, the movable rod 11, and the limiting wheel 13 are all smaller than the width of the discharge trough 8, so that the sleeve 10, the movable rod 11, and the limiting wheel 13 can move within the discharge trough 8.
[0034] Example:
[0035] like Figures 1-6As shown, the method of using the automotive sunroof flexible shaft cutting machine of this utility model is as follows: When using this utility model, firstly, the unwinding mechanism of the equipment unwinds the automotive sunroof flexible shaft. Then, one end of the automotive sunroof flexible shaft is manually passed through the guide mechanism 2. The guide mechanism 2 conveys the flexible shaft outward through the guide seat 7. The electric telescopic rod 4 pushes the moving plate 5 downward. The moving plate 5 drives the cutting blade 6 and the connecting plate 9 to move downward simultaneously. The connecting plate 9 further drives the sleeve 10, the movable rod 11, and the limiting wheel 13 to move downward, so that the limiting wheel 13 presses down and limits the automotive sunroof flexible shaft in the discharge trough 8, so that the flexible shaft will not deviate during the cutting process of the cutting blade 6. When the cutting blade 6 returns to the origin, the guide wheel will continue to rotate and convey the automotive flexible shaft. Since the limiting wheel 13 can rotate, rolling friction occurs between it and the automotive sunroof flexible shaft, which will not affect the subsequent conveying and cutting of the automotive flexible shaft.
[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A flexible shaft cutting machine for automotive sunroofs, comprising a worktable (1), a guide mechanism (2), a mounting base (3), and an electric telescopic rod (4), characterized in that, The electric telescopic rod (4) is fixedly connected to the mounting base (3). A movable plate (5) is fixedly connected to the output end of the electric telescopic rod (4). A cutting blade (6) is fixedly connected to the bottom surface of the movable plate (5). A connecting plate (9) is fixedly connected to one side of the movable plate (5). A guide seat (7) is fixedly connected to the mounting base (3). A discharge groove (8) is opened on the upper surface of the guide seat (7). A sleeve (10) is fixedly connected to the bottom surface of the connecting plate (9). A spring (14) is provided inside the sleeve (10). The sleeve (10) is provided with a displacement component, which includes a limiting plate (15) and a movable rod (11). The movable rod (11) is threadedly connected to the limiting plate (15). A limiting ring is bolted to the bottom end of the sleeve (10). A connecting frame (12) is fixedly connected to the bottom surface of the movable rod (11). A limiting wheel (13) is connected inside the connecting frame (12). A strip groove (16) is opened on the bottom surface of the inner wall of the discharge trough (8). Two guide wheels (17) are rotatably connected inside the strip groove (16).
2. The automotive sunroof flexible shaft cutting machine according to claim 1, characterized in that, The movable rod (11) and the limiting plate (15) are in sliding engagement with the sleeve (10).
3. The automotive sunroof flexible shaft cutting machine according to claim 1, characterized in that, The limiting wheel (13) is rotatably connected to the connecting frame (12).
4. The automotive sunroof flexible shaft cutting machine according to claim 1, characterized in that, The diameters of the sleeve (10), the movable rod (11), and the limiting wheel (13) are all smaller than the width of the discharge trough (8), and one surface of the cutting blade (6) is in contact with one surface of the guide seat (7).
5. The automotive sunroof flexible shaft cutting machine according to claim 1, characterized in that, The mounting base (3) includes a horizontal part A, a vertical part and a horizontal part B, which together form an integral "Z"-shaped mounting base (3).
6. The automotive sunroof flexible shaft cutting machine according to claim 5, characterized in that, The transverse part B is fixedly installed on the upper surface of the workbench (1) by bolts, the electric telescopic rod (4) is fixedly installed on the bottom surface of the transverse part A, and the guide seat (7) is fixedly installed on one surface of the vertical part.