Clamping mechanism and front bumper processing device
By designing an automatically adjustable clamping mechanism and a cutting and feeding mechanism, the problem of frequent clamping adjustments in the processing of motorcycle guardrails was solved, improving processing efficiency and reducing labor costs, and realizing the automated processing of blank tubes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHUANGMI METAL PROD CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-21
AI Technical Summary
In the current motorcycle guard bar manufacturing process, the clamping mechanism needs to be frequently adjusted, resulting in repetitive operation steps, time-consuming and labor-intensive processes, and increased labor costs.
Design a clamping mechanism including a mounting frame, a movable frame, an elastic rod, and a transmission mechanism. Through the cooperation of the transmission rod and the elastic rod, the clamping force is automatically adjusted. Combined with the cutting and feeding mechanism, the automatic clamping and cutting of the blank tube is realized.
It improves processing efficiency, reduces the workload and labor costs of operators, and realizes automatic feeding and clamping of blank tubes, avoiding deformation caused by excessive clamping force.
Smart Images

Figure CN224143615U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of front bumper processing technology, specifically to a clamping mechanism and a front bumper processing device. Background Technology
[0002] Motorcycle guards, also known as bumpers or crash bars, primarily serve to protect the safety of the vehicle and rider. Therefore, it is essential to install guards on motorcycles. A motorcycle bumper or guard is a mechanical protective device that uses its own strength and support to prevent crushing or scratching injuries to people after the vehicle tips over. It also protects the exterior parts of the vehicle.
[0003] Existing motorcycle guards are usually made by bending metal tubes. Before bending the metal tubes, the blank metal tubes need to be cut into appropriate sizes. When cutting the blank metal tubes, the metal tubes need to be adjusted to the appropriate position and the clamping mechanism needs to be adjusted to clamp the metal tubes. After cutting, the clamping mechanism needs to be adjusted to release the metal tubes and remove them. Then, the above operations are repeated for the next blank metal tube. The operation steps are simple and repetitive, time-consuming and labor-intensive, wasting a lot of human resources and making it difficult to control labor costs. Utility Model Content
[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a clamping mechanism and a front bumper processing device.
[0005] The technical solution of this utility model: On the one hand, this utility model proposes a clamping mechanism, including:
[0006] The mounting frame has a first clamping roller rotatably connected between the two sides of its inner wall.
[0007] The movable frame is slidably disposed within the mounting frame, and the movable frame is provided with a second clamping roller adapted to the first clamping roller;
[0008] An elastic rod is provided on the movable frame, with one end of the elastic rod passing through the mounting frame and extending to the outside of the mounting frame;
[0009] A transmission mechanism, which is mounted on an elastic rod, is used to adjust the position of the movable frame and the second clamping roller;
[0010] The transmission mechanism includes a transmission rod, a connecting frame, and a friction assembly; the bottom end of the transmission rod is fixedly connected to the top end of the elastic rod, the connecting frame is sleeved on the outside of the transmission rod, and the friction assembly is set between the connecting frame and the transmission rod to adjust the friction force between the transmission rod and the connecting frame.
[0011] Preferably, the elastic rod includes a mounting cylinder, a movable cylinder, and a preload spring; the mounting cylinder passes through the mounting frame and is slidably connected to the mounting frame, one end of the movable cylinder is slidably disposed inside the mounting cylinder, the other end of the movable cylinder passes through the mounting cylinder and is fixedly connected to the movable frame, one end of the preload spring is fixedly connected to the top of the inner wall of the mounting cylinder, and the other end of the preload spring is fixedly connected to the bottom of the inner wall of the movable cylinder.
[0012] Preferably, the friction assembly includes a friction plate, a friction pad, and an adjusting screw; the friction plate is fixedly connected to the transmission rod, the friction pad is slidably disposed in the connecting frame, one end of the adjusting screw is rotatably connected to the friction pad, and the other end of the adjusting screw passes through the connecting frame and is threadedly connected to the connecting frame.
[0013] On the other hand, this utility model also proposes a front bumper processing device with the above-mentioned clamping mechanism, which further includes:
[0014] The workbench has a mounting frame fixedly connected to its top, and a telescopic rod is fixedly connected to the mounting frame. The telescopic rod passes through the mounting frame and extends into the mounting frame.
[0015] The cutting mechanism is installed inside the mounting frame, and is connected to the telescopic rod and the transmission mechanism.
[0016] The feeding mechanism is set on the worktable to adjust the position of the blank tube.
[0017] Preferably, the cutting mechanism includes a movable seat, a cutting motor, and a cutting wheel; the movable seat is movably connected to the mounting frame, the movable seat is fixedly connected to the moving end of the telescopic rod, the movable seat is fixedly connected to the connecting frame, the cutting motor is fixedly connected to the movable seat, and the cutting wheel is detachably connected to the output end of the cutting motor.
[0018] Preferably, the feeding mechanism includes a feeding frame, a feeding roller, a driven roller, and a feeding motor; the feeding frame is fixedly connected to the worktable, the feeding roller and the driven roller are rotatably arranged inside the feeding frame, the feeding motor is fixedly connected to the feeding frame, and the feeding roller is connected to the output end of the feeding motor.
[0019] Preferably, the worktable is equipped with multiple support rollers for supporting and guiding the blank tube.
[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0021] This invention utilizes a coordinated clamping and cutting mechanism. When the cutting mechanism descends to cut the blank tube, the transmission rod and elastic rod push the movable frame and the second clamping roller downwards to clamp and fix the blank tube. During the cutting process, the second and first clamping rollers maintain a suitable clamping force on the blank tube to prevent excessive clamping force from deforming the blank tube. When the cutting mechanism ascends to reset, it drives the clamping mechanism to automatically release the blank tube, eliminating the need for manual adjustment. This improves processing efficiency while reducing the workload and labor costs of operators. The feeding mechanism enables automatic feeding of the blank tube, further reducing labor costs and the workload of operators. Attached Figure Description
[0022] Figure 1 This is a perspective view of one embodiment of the present invention;
[0023] Figure 2 This is a perspective view of the clamping mechanism in one embodiment of the present invention;
[0024] Figure 3 This is a perspective view of the friction assembly in one embodiment of the present invention;
[0025] Figure 4 This is a cross-sectional view of a friction assembly in one embodiment of the present invention;
[0026] Figure 5 This is a cross-sectional view of the elastic rod in one embodiment of the present invention;
[0027] Figure 6 This is a perspective view of the feeding mechanism in one embodiment of the present invention.
[0028] Reference numerals: 1. Mounting frame; 21. Mounting cylinder; 22. Movable cylinder; 23. Preload spring; 31. Transmission rod; 32. Connecting frame; 331. Friction plate; 332. Friction disc; 333. Adjusting screw; 41. Movable seat; 42. Cutting motor; 43. Cutting wheel; 51. Feeding frame; 52. Feeding roller; 53. Driven roller; 54. Feeding motor; 6. First clamping roller; 7. Movable frame; 8. Second clamping roller; 9. Worktable; 10. Mounting frame; 11. Telescopic rod; 12. Support roller. Detailed Implementation
[0029] Example 1
[0030] like Figure 2-5 As shown, the clamping mechanism proposed in this utility model includes a mounting frame 1, a movable frame 7, an elastic rod, and a transmission mechanism.
[0031] The first clamping roller 6 is rotatably connected between the two sides of the inner wall of the mounting frame 1;
[0032] The movable frame 7 is slidably disposed within the mounting frame 1, and the movable frame 7 is provided with a second clamping roller 8 adapted to the first clamping roller 6;
[0033] An elastic rod is set on the movable frame 7, and one end of the elastic rod passes through the mounting frame 1 and extends to the outside of the mounting frame 1;
[0034] The transmission mechanism is mounted on the elastic rod to adjust the position of the movable frame 7 and the second clamping roller 8;
[0035] The transmission mechanism includes a transmission rod 31, a connecting frame 32, and a friction assembly. The bottom end of the transmission rod 31 is fixedly connected to the top end of the elastic rod. The connecting frame 32 is sleeved on the outside of the transmission rod 31. The friction assembly is disposed between the connecting frame 32 and the transmission rod 31 to adjust the friction force between the transmission rod 31 and the connecting frame 32.
[0036] like Figure 5 As shown, the elastic rod includes a mounting cylinder 21, a movable cylinder 22, and a preload spring 23. The mounting cylinder 21 passes through the mounting frame 1 and is slidably connected to the mounting frame 1. One end of the movable cylinder 22 is slidably disposed inside the mounting cylinder 21, and the other end of the movable cylinder 22 passes through the mounting cylinder 21 and is fixedly connected to the movable frame 7. One end of the preload spring 23 is fixedly connected to the top of the inner wall of the mounting cylinder 21, and the other end of the preload spring 23 is fixedly connected to the bottom of the inner wall of the movable cylinder 22.
[0037] like Figure 2-4 As shown, the friction assembly includes a friction plate 331, a friction pad 332, and an adjusting screw 333. The friction plate 331 is fixedly connected to the transmission rod 31, the friction pad 332 is slidably disposed in the connecting frame 32, one end of the adjusting screw 333 is rotatably connected to the friction pad 332, and the other end of the adjusting screw 333 passes through the connecting frame 32 and is threadedly connected to the connecting frame 32.
[0038] In this embodiment, the friction force between the friction plate 332 and the friction plate 331 is adjustable. By rotating the adjusting screw 333, the friction plate 332 is moved, and the friction force between the friction plate 332 and the friction plate 331 is adjusted to a suitable value to ensure that the clamping force is not too large and deforms the blank tube during the cutting process.
[0039] Example 2
[0040] like Figures 1-6 As shown, the front bumper processing device with the above-mentioned clamping mechanism proposed in this utility model further includes:
[0041] The workbench 9 has a mounting frame 10 fixedly connected to its top. A telescopic rod 11 is fixedly connected to the mounting frame 10. The telescopic rod 11 is an electric telescopic rod and is connected to the control system and power supply through a wire. The telescopic rod 11 passes through the mounting frame 10 and extends into the mounting frame 10. Multiple support rollers 12 are provided on the workbench 9 for supporting and guiding the blank tube.
[0042] The cutting mechanism is installed inside the mounting frame 10. The cutting mechanism is connected to the telescopic rod 11 and the transmission mechanism.
[0043] The feeding mechanism, which is set on the worktable 9, is used to adjust the position of the blank tube.
[0044] like Figure 1 As shown, the cutting mechanism includes a movable seat 41, a cutting motor 42, and a cutting wheel 43. The movable seat 41 is movably connected to the mounting frame 10, the movable seat 41 is fixedly connected to the moving end of the telescopic rod 11, the movable seat 41 is fixedly connected to the connecting frame 32, the cutting motor 42 is fixedly connected to the movable seat 41, the cutting motor 42 is a variable frequency motor, and is connected to the control system and power supply through wires. The cutting wheel 43 is detachably connected to the output end of the cutting motor 42.
[0045] like Figure 6 As shown, the feeding mechanism includes a feeding frame 51, a feeding roller 52, a driven roller 53, and a feeding motor 54. The feeding frame 51 is fixedly connected to the worktable 9. The feeding roller 52 and the driven roller 53 are rotatably arranged inside the feeding frame 51. The feeding motor 54 is fixedly connected to the feeding frame 51. The feeding motor 54 is a variable frequency motor and is connected to the control system and power supply through wires. The feeding roller 52 is connected to the output end of the feeding motor 54.
[0046] First, the device is debugged. Rotating the adjusting screw 333 moves the friction plate 332, adjusting the friction between the friction plate 332 and the friction plate 331 to a suitable level. This ensures that the clamping force during the downward cutting of the blank tube by the cutting wheel 43 is not too large and will deform the blank tube. The blank tube to be cut is placed on the support roller 12, passing through the feeding frame 51 and the mounting frame 1 in sequence, positioning the blank tube between the feeding roller 52 and the driven roller 53, and between the first clamping roller 6 and the second clamping roller 8. The telescopic rod 11 and the cutting motor 42 are activated via the control panel. The telescopic rod 11, through the movable seat 41, pushes the connecting frame 32, the cutting motor 42, and the cutting wheel 43 downwards together. The downward movement of the connecting frame 32, through the friction plate 332 and the friction plate 331, causes the friction to be applied downwards. The friction between the first and second clamping rollers 6 pushes the transmission rod 31 downward. The downward movement of the transmission rod 31 pushes the movable frame 7 and the second clamping roller 8 downward through the elastic rod to clamp and fix the blank tube, and maintains the second clamping roller 8 and the first clamping roller 6 to apply appropriate clamping force to the blank tube. The cutting motor 42 works to drive the cutting wheel 43 to rotate and cut the blank tube. After one cut, the telescopic rod 11 retracts and drives the cutting motor 42 and the cutting wheel 43 to reset. At the same time, the second clamping roller 8 also resets. The feeding motor 54 works to drive the feeding roller 52 to rotate. The rotating feeding roller 52 sends the blank tube to the clamping mechanism. When the cutting point of the blank tube is directly below the cutting wheel 43, the feeding motor 54 stops rotating. The telescopic rod 11 and the cutting motor 42 work to continue cutting.
[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A clamping mechanism, characterized by, include: The mounting frame (1) has a first clamping roller (6) rotatably connected between the two sides of its inner wall; The movable frame (7) is slidably disposed within the mounting frame (1), and the movable frame (7) is provided with a second clamping roller (8) adapted to the first clamping roller (6); An elastic rod is provided on the movable frame (7), with one end of the elastic rod passing through the mounting frame (1) and extending to the outside of the mounting frame (1); A transmission mechanism is provided on an elastic rod for adjusting the position of the movable frame (7) and the second clamping roller (8); The transmission mechanism includes a transmission rod (31), a connecting frame (32), and a friction assembly; the bottom end of the transmission rod (31) is fixedly connected to the top end of the elastic rod, the connecting frame (32) is sleeved on the outside of the transmission rod (31), and the friction assembly is set between the connecting frame (32) and the transmission rod (31) to adjust the friction force between the transmission rod (31) and the connecting frame (32).
2. A clamping mechanism according to claim 1, wherein The elastic rod includes a mounting cylinder (21), a movable cylinder (22), and a preload spring (23); the mounting cylinder (21) passes through the mounting frame (1) and is slidably connected to the mounting frame (1); one end of the movable cylinder (22) is slidably disposed inside the mounting cylinder (21); the other end of the movable cylinder (22) passes through the mounting cylinder (21) and is fixedly connected to the movable frame (7); one end of the preload spring (23) is fixedly connected to the top of the inner wall of the mounting cylinder (21); and the other end of the preload spring (23) is fixedly connected to the bottom of the inner wall of the movable cylinder (22).
3. A clamping mechanism according to claim 2, wherein The friction assembly includes a friction plate (331), a friction pad (332), and an adjusting screw (333). The friction plate (331) is fixedly connected to the transmission rod (31), the friction pad (332) is slidably disposed in the connecting frame (32), one end of the adjusting screw (333) is rotatably connected to the friction pad (332), and the other end of the adjusting screw (333) passes through the connecting frame (32) and is threadedly connected to the connecting frame (32).
4. A front bumper processing apparatus comprising the clamping mechanism according to any one of claims 1 to 3, characterized by Also includes: The workbench (9) has a mounting frame (10) fixedly connected to its top. A telescopic rod (11) is fixedly connected to the mounting frame (10). The telescopic rod (11) passes through the mounting frame (10) and extends into the mounting frame (10). The cutting mechanism is installed in the mounting frame (10), the cutting mechanism is connected to the telescopic rod (11), and the cutting mechanism is connected to the transmission mechanism; The feeding mechanism is set on the workbench (9) to adjust the position of the blank tube.
5. A front bumper processing apparatus according to claim 4, wherein The cutting mechanism includes a movable seat (41), a cutting motor (42), and a cutting wheel (43); the movable seat (41) is movably connected to the mounting frame (10), the movable seat (41) is fixedly connected to the moving end of the telescopic rod (11), the movable seat (41) is fixedly connected to the connecting frame (32), the cutting motor (42) is fixedly connected to the movable seat (41), and the cutting wheel (43) is detachably connected to the output end of the cutting motor (42).
6. A front bumper processing apparatus according to claim 4, wherein The feeding mechanism includes a feeding frame (51), a feeding roller (52), a driven roller (53), and a feeding motor (54). The feeding frame (51) is fixedly connected to the worktable (9). The feeding roller (52) and the driven roller (53) are rotatably arranged inside the feeding frame (51). The feeding motor (54) is fixedly connected to the feeding frame (51), and the feeding roller (52) is connected to the output end of the feeding motor (54).
7. A front bumper processing apparatus according to claim 4, wherein Multiple support rollers (12) are provided on the worktable (9) to support and guide the blank tube.