Motorcycle frame production detection device

Abstract

The utility model relates to the technical field of motorcycle frame detection, in particular to a motorcycle frame production detection device. According to the technical scheme, the device comprises a first gear, a round block, a chuck, a rubber pad and a bearing, a through hole is formed in the round block, a first screw is fixed to the chuck, the chuck is fixed to the rubber pad, the round block and the bearing are connected in a sleeved mode and rotationally connected, the bearing and the first gear are fixed, a fixing plate is fixed to the outer wall of the round block, and a second gear is fixed to the bottom end of a rotating rod. A second gear is arranged on the movable plate, the second gear is meshed with the first gear, the first gear is fixedly provided with a connecting plate, the connecting plate is fixedly provided with a long plate, the long plate is fixedly provided with a second motor, a transmission shaft arranged on the second motor is fixedly provided with a second screw, the second screw penetrates through a connecting block and is in threaded connection with the connecting block, and the movable plate is provided with an ultrasonic flaw detection device. The device has the advantages that flaw detection can be conveniently carried out on different positions of the welding seam of the two frame tubes, time and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle frame testing technology, specifically a motorcycle frame production testing device. Background Technology

[0002] The motorcycle frame is the core component of a motorcycle's structure. It supports the engine, suspension system, wheels, and all other critical components, providing support and stability for the entire vehicle. The design and manufacturing quality of the frame directly affects the motorcycle's safety, handling, and durability. During frame production, the welding process is particularly important, especially when welding two frame tubes; the quality of the weld directly determines the overall strength and reliability of the frame.

[0003] However, traditional welding flaw detection processes have certain limitations. After welding, operators need to use handheld flaw detection devices (such as ultrasonic flaw detectors or magnetic particle flaw detectors) to inspect the weld point by point. Since welds are usually annular or curved, operators need to constantly adjust the angle and position of the flaw detection device to ensure that every part of the weld is effectively inspected. This process is not only time-consuming and labor-intensive, but also prone to missing certain areas due to human error, thus affecting the accuracy and comprehensiveness of the inspection.

[0004] Chinese patent discloses a motorcycle frame testing device (authorization announcement number CN222505223U). The patented technology mainly includes a base plate, a fixing plate fixedly connected to the upper surface of the base plate, a housing fixedly connected to the back of the fixing plate, and a sliding opening on the front of the fixing plate, with a slider slidably connected to the inner wall of the sliding opening.

[0005] However, this patent still has shortcomings. After welding, operators need to use handheld flaw detection devices (such as ultrasonic flaw detectors or magnetic particle flaw detectors) to inspect the weld point by point. Since welds are usually annular or curved, operators need to constantly adjust the angle and position of the flaw detection device to ensure that every part of the weld is effectively inspected. This process is not only time-consuming and labor-intensive, but also prone to missing some areas due to human error, thus affecting the accuracy and comprehensiveness of the inspection. Therefore, those skilled in the art have provided a motorcycle frame production inspection device to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to provide a motorcycle frame production inspection device, which has the advantages of facilitating flaw detection at different positions of the weld seam of two frame tubes, saving time and labor, and improving work efficiency. It solves the problem that during the production of motorcycle frames, two frame tubes need to be welded together. After welding, a person manually holds a flaw detection device to detect flaws at the weld, but this requires the person to constantly rotate the device to detect flaws at different positions of the weld, which is time-consuming, labor-intensive, and inefficient.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a motorcycle frame production and testing device, comprising a gear, a circular block, a clamping plate, a rubber pad, and a bearing. A through hole is formed on the upper surface of the circular block. A screw is threaded to both ends of the circular block. The screw is fixed to the clamping plate, and the clamping plate is fixed to the rubber pad. The circular block is sleeved with the bearing and rotatably connected. The bearing is fixed to the gear. A fixing plate is fixed to one side of the outer wall of the circular block. A rotating rod is rotatably connected to the lower surface of the fixing plate. A gear is fixed to the bottom end of the rotating rod, and the gear meshes with the gear. A connecting plate is fixed to one side of the lower surface of the gear. A long plate is fixed to the lower surface of the connecting plate. A long groove is formed on the lower surface of the long plate, and a connecting block is inserted into the long groove. A motor is fixed to one side of the long plate. A screw is fixed to one side of the transmission shaft of the motor. One side of the screw passes through the connecting block and is threadedly connected. A movable plate is fixed to the lower surface of the connecting block, and an ultrasonic flaw detector is installed on one side of the movable plate.

[0008] Preferably, the circular block has threaded holes at both its front and rear ends. The rear end of the screw rod extends through the threaded hole and into the through hole, and is threadedly connected. A turntable is fixed to the front end of the screw rod. By extending through the threaded hole and threadedly connected, rotating the screw rod allows the clamp and rubber pad to move as needed, facilitating the clamping and restraint of one of the two welded frame tubes, and facilitating flaw detection at the weld joints of the two frame tubes.

[0009] Preferably, the outer wall of the circular block has an annular groove, and a bearing is fitted into the annular groove and rotatably connected. The annular groove facilitates the installation of the bearing and also facilitates the rotation of the bearing.

[0010] Preferably, the horizontal centers of gear one and gear two are aligned. This horizontal alignment facilitates the meshing and connection of gear one and gear two.

[0011] Preferably, a circular hole is formed on the upper surface of the fixing plate, and a motor is fixed to the upper surface of the fixing plate. The bottom end of the drive shaft of the motor extends into the circular hole, and a rotating rod is fixed to the bottom end of the drive shaft of the motor. The rotating rod is fixed by the drive shaft of the motor, which provides power for the rotation of the rotating rod, gear one, and gear two. At the same time, the long plate and the ultrasonic flaw detection device can be moved as needed to facilitate flaw detection at different positions of the weld seams of the two frame tubes.

[0012] Preferably, the connecting block has a threaded hole on one side, and the long plate has a circular hole on one side. One side of the drive shaft of the motor extends into the circular hole, and a screw is fixed to one side of the drive shaft. The screw passes through the threaded hole and is threadedly connected. The drive shaft of the motor provides power for the screw's rotation, thus powering the movement of the connecting block, the moving plate, and the ultrasonic flaw detector. This facilitates the ultrasonic flaw detector's inspection of different locations at the weld seams of the two frame tubes.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model uses a clamp and rubber pad for fixation, a round block and bearing sleeve for rotatable connection, a bearing and gear one for fixation, a fixing plate for fixing one side of the outer wall of the round block, a rotating rod for rotatable connection on the lower surface of the fixing plate, a gear two for fixing the bottom end of the rotating rod, gear two for meshing with gear one, a connecting plate for fixing one side of the lower surface of gear one, a long plate for fixing the lower surface of the connecting plate, a long groove for inserting a connecting block into the long groove, a motor two for fixing one side of the long plate, a screw two for fixing one side of the drive shaft of motor two, and a threaded connection through the connecting block on one side of the screw two. The device has a movable plate with an ultrasonic flaw detection device installed on one side. When flaw detection is required at the weld seams of two frame tubes, one frame tube is inserted through the through hole. The screw is rotated so that the clamp and rubber pad clamp and limit one frame tube. The motor is started so that gears one and two and the ultrasonic flaw detection device can rotate as needed. At the same time, the motor is started so that the screw rotates and the ultrasonic flaw detection device can move to a suitable position as needed. This achieves the effect of facilitating flaw detection at different locations of the weld seams of the two frame tubes, saving time and effort, and improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the circular block of this utility model;

[0017] Figure 3 This is a cross-sectional view of the fixing plate of this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the long plate structure of this utility model.

[0019] In the diagram: 1. Moving plate; 2. Long plate; 3. Gear 1; 4. Round block; 5. Through hole; 6. Fixed plate; 7. Motor 1; 8. Rotating rod; 9. Gear 2; 10. Turntable; 11. Screw 1; 12. Threaded hole 1; 13. Clamping plate; 14. Rubber pad; 15. Bearing; 16. Annular groove; 17. Round hole 1; 18. Ultrasonic flaw detector; 19. Motor 2; 20. Round hole 2; 21. Threaded hole 2; 22. Connecting block; 23. Screw 2; 24. Long groove; 25. Connecting plate. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4 The present invention provides two embodiments:

[0022] Example 1: A motorcycle frame production and testing device includes a gear 3, a circular block 4, a clamping plate 13, a rubber pad 14, and a bearing 15. A through hole 5 is formed on the upper surface of the circular block 4. Screws 11 are threaded to the front and rear ends of the circular block 4, respectively. Screws 11 are fixed to the clamping plate 13, and the clamping plate 13 is fixed to the rubber pad 14. The circular block 4 is sleeved with and rotatably connected to the bearing 15. The bearing 15 is fixed to the gear 3. A fixing plate 6 is fixed to one side of the outer wall of the circular block 4. A rotating rod 8 is rotatably connected to the lower surface of the fixing plate 6. A bearing is fixed to the bottom end of the rotating rod 8. Gear 29 meshes with gear 13. A connecting plate 25 is fixed to one side of the lower surface of gear 13. A long plate 2 is fixed to the lower surface of the connecting plate 25. A long groove 24 is opened on the lower surface of the long plate 2. A connecting block 22 is inserted into the long groove 24. A motor 29 is fixed to one side of the long plate 2. A screw 23 is fixed to one side of the transmission shaft of the motor 29. The screw 23 passes through the connecting block 22 and is threaded. A movable plate 1 is fixed to the lower surface of the connecting block 22. An ultrasonic flaw detector 18 is installed on one side of the movable plate 1.

[0023] The rubber pad 14 is made of hydrogenated nitrile butadiene rubber, which maintains oil and heat resistance while having a lower elastic modulus, making it suitable for fitting and clamping complex tube shapes. However, its dielectric constant needs to be verified beforehand to see if it will affect the detection. The thickness of the rubber pad 14 should be controlled within a certain range; if it is too thick, it may attenuate ultrasonic energy, while if it is too thin, it will reduce the buffering effect.

[0024] The circular block 4 has threaded holes 12 at both ends. The rear end of the screw 11 passes through the threaded hole 12 and extends into the through hole 5, and is threadedly connected. The front end of the screw 11 is fixed with a turntable 10.

[0025] The outer wall of the circular block 4 is provided with an annular groove 16, and a bearing 15 is sleeved in the annular groove 16 and rotatably connected.

[0026] Gear 1 (3) and Gear 2 (9) are horizontally aligned.

[0027] A circular hole 17 is provided on the upper surface of the fixing plate 6. A motor 7 is fixed on the upper surface of the fixing plate 6. The bottom end of the drive shaft of the motor 7 extends into the circular hole 17. A rotating rod 8 is fixed at the bottom end of the drive shaft of the motor 7.

[0028] Motor 1 (7) and Motor 2 (19) are servo motors. The core structure of a servo motor mainly consists of three parts: the motor body, the encoder, and the driver. The motor body typically uses a permanent magnet synchronous motor or an AC asynchronous motor. The rotor is composed of permanent magnets, and the stator windings generate a rotating magnetic field through three-phase current, driving the rotor to rotate. The encoder acts as a feedback device, monitoring the rotor position and speed in real time and feeding the signal back to the driver, forming a closed-loop control. The driver receives command signals from the controller, combines them with encoder feedback, and adjusts the frequency and amplitude of the output current through complex algorithms to ensure that the motor accurately follows the target motion trajectory.

[0029] The working principle of a servo motor is based on the closed-loop control concept. When the controller issues a motion command, the driver compares the deviation between the target position and the actual position, and dynamically adjusts the motor's torque and speed until the error approaches zero. This real-time feedback and correction mechanism gives the servo motor extremely high dynamic response capability, enabling both high-speed operation and precise positioning, even down to the micrometer level.

[0030] In this embodiment, when it is necessary to inspect the weld seams of two frame tubes, one of the frame tubes is inserted through the through hole 5. The screw 11 is rotated so that the clamp 13 and the rubber pad 14 can be moved as needed, so that the rubber pad 14 can fit against the outer wall of one of the frame tubes. Then the motor 7 is started so that the rotating rod 8, the gear 9, the gear 3 and the ultrasonic flaw detection device 18 can be rotated as needed. The ultrasonic flaw detection device 18 can detect different positions of the weld seams of the two frame tubes without the need for manual operation of the ultrasonic flaw detection device 18 to continuously rotate the angle for flaw detection.

[0031] Example 2:

[0032] A threaded hole 21 is provided on one side of the connecting block 22, and a round hole 20 is provided on one side of the long plate 2. One side of the drive shaft of the motor 2 19 extends into the round hole 20. A screw 23 is fixed on one side of the drive shaft of the motor 2 19. One side of the screw 23 passes through the threaded hole 21 and is threadedly connected.

[0033] When using ultrasonic flaw detection equipment 18 for welding quality inspection of motorcycle frame tubes, it is necessary to consider both the structural characteristics of the tube and the types of welding defects. Equipment such as the Olympus EPOCH 650 or SONATEST 100 / 200 series should be selected. These devices feature high resolution, multi-band adjustable operation, and dedicated weld analysis software, making them suitable for the inspection needs of frame tubes made of different materials such as carbon steel and aluminum alloy. Its core structure consists of a pulse generator, a high-frequency probe (transducer), a signal receiving amplifier, a digital processor, and a display screen. The working principle is based on the piezoelectric effect—the quartz crystal inside the probe generates high-frequency mechanical vibration (ultrasound) under electrical pulse excitation. After the sound waves are transmitted to the frame tube through a coupling agent, they are reflected back when encountering defects such as weld porosity and cracks. The probe receives the reflected signals and converts them into electrical signals. After filtering and digital processing, an A-scan waveform or B-scan image is formed on the screen. The location and size of the defects are determined by the echo amplitude and time difference.

[0034] In this embodiment, when it is necessary to inspect the weld seams of two frame tubes, some frame tubes have bends at the welds. Therefore, motor 219 can be started to rotate screw 23. The connecting block 22, moving plate 1 and ultrasonic flaw detection device 18 can be moved as needed to facilitate flaw detection of some frame tubes at the bends.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A motorcycle frame production testing device, comprising a gear (3), a circular block (4), a chuck (13), a rubber pad (14), and a bearing (15), characterized in that: The upper surface of the circular block (4) is provided with a through hole (5). The front and rear ends of the circular block (4) are respectively threaded with screw rod one (11). The screw rod one (11) is fixed to the clamp (13). The clamp (13) is fixed to the rubber pad (14). The circular block (4) is sleeved with the bearing (15) and rotatably connected. The bearing (15) is fixed to gear one (3). A fixing plate (6) is fixed on one side of the outer wall of the circular block (4). The lower surface of the fixing plate (6) is rotatably connected to the rotating rod (8). The bottom end of the rotating rod (8) is fixed with gear two (9). Gear two (9) meshes with gear one (3). A connecting plate (25) is fixed on one side of the lower surface of the gear (3). A long plate (2) is fixed on the lower surface of the connecting plate (25). A long groove (24) is opened on the lower surface of the long plate (2). A connecting block (22) is inserted into the long groove (24). A motor (19) is fixed on one side of the long plate (2). A screw (23) is fixed on one side of the transmission shaft of the motor (19). The screw (23) passes through the connecting block (22) and is threaded. A movable plate (1) is fixed on the lower surface of the connecting block (22). An ultrasonic flaw detector (18) is installed on one side of the movable plate (1).

2. The motorcycle frame production testing device according to claim 1, characterized in that: The circular block (4) has threaded holes (12) at both ends. The rear end of the screw (11) extends through the threaded hole (12) into the through hole (5) and is threaded. The front end of the screw (11) is fixed with a turntable (10).

3. The motorcycle frame production testing device according to claim 1, characterized in that: The outer wall of the circular block (4) is provided with an annular groove (16), and a bearing (15) is sleeved in the annular groove (16) and rotatably connected.

4. The motorcycle frame production testing device according to claim 1, characterized in that: The first gear (3) and the second gear (9) are horizontally aligned.

5. The motorcycle frame production testing device according to claim 1, characterized in that: The upper surface of the fixing plate (6) is provided with a circular hole (17), and a motor (7) is fixed on the upper surface of the fixing plate (6). The bottom end of the transmission shaft of the motor (7) extends into the circular hole (17), and a rotating rod (8) is fixed on the bottom end of the transmission shaft of the motor (7).

6. The motorcycle frame production testing device according to claim 1, characterized in that: The connecting block (22) has a threaded hole 2 (21) on one side, and the long plate (2) has a round hole 2 (20) on one side. The transmission shaft of the motor 2 (19) extends into the round hole 2 (20) on one side. The transmission shaft of the motor 2 (19) is fixed with a screw 2 (23) on one side. The screw 2 (23) passes through the threaded hole 2 (21) on one side and is threaded.

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