Clamping assembly for flywheel signal hole position accuracy detection
By designing a clamping assembly for flywheel signal hole position degree detection with automatic detection function, the problems of inaccurate flywheel clamping and long detection time in the prior art are solved, and a more efficient and accurate detection process is achieved.
Patent Information
- Application Number
- CN202421900673.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-07
AI Technical Summary
After a long time of use, the existing clamping components for flywheel signal hole position detection have caused inaccurate clamping of flywheel, which requires manual inspection for a long time, affecting production efficiency and detection accuracy.
A clamping assembly for detecting position of the flywheel signal hole is designed, including a work table and a clamping mechanism rotatably connected to the work table. The clamping mechanism automatically detects the synchronization and displacement distance of the movable clamping block through a laser sensor and a driving component to ensure that the flywheel is in the center of the rotating shell when clamping.
Through the automatic detection function, the time required for inspection accuracy before use is reduced, the accuracy and production efficiency of detection are improved, and the precise clamping of the flywheel is ensured.
Smart Images
Figure CN223006310U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile flywheel detection, and particularly relates to a clamping assembly for detecting the position degree of a flywheel signal hole. Background Technique
[0002] The flywheel of an automobile engine is a disc-shaped component installed behind the engine and is usually made of steel. Its main function is to balance and store the power pulsation of the engine. There are 58 signal holes designed around it for positioning the flywheel angular position and measuring the speed. The adjacent signal holes are spaced 6°, with an accuracy of ±0.1°, and the horizontal accuracy of the signal holes is ±0.1 mm. At present, during the production process of automobile engine flywheels, it is necessary to go to a three-coordinate laboratory to inspect the position degree of the flywheel signal holes. When detecting, a special clamping assembly for detecting the position degree of the flywheel signal hole is required to clamp it.
[0003] For the existing clamping assembly for detecting the position degree of the flywheel signal hole, after long-term use, the wear between its parts will affect the clamping accuracy of the flywheel and also cause the flywheel not to be at the center of the clamping assembly after being clamped. Therefore, each time it is used, it is necessary for an operator to hold the detection device for a long time. The long waiting time caused by the inspection affects the production efficiency and cannot guarantee the detection accuracy and the qualified rate of the factory products. Content of the Utility Model
[0004] In view of this, the utility model provides a clamping assembly for detecting the position degree of a flywheel signal hole, which can automatically detect the synchronization degree and displacement distance when the movable clamping block moves through a testing mechanism each time the machine is started, so as to ensure that the flywheel can always be at the center of the rotating shell when being clamped, and reduce the time required for inspecting the accuracy of the clamping assembly for detecting the position degree of the flywheel signal hole before use.
[0005] To solve the above technical problems, the utility model provides a clamping assembly for detecting the position degree of a flywheel signal hole, including a workbench and a clamping mechanism rotatably connected to the middle of the upper surface of the workbench. The clamping mechanism includes a rotating shell rotatably connected to the middle of the upper surface of the workbench. The upper end surface of the rotating shell is provided with annularly and evenly distributed sliding grooves, and movable clamping blocks are slidably connected in the sliding grooves. A testing mechanism is also provided in the middle of the workbench. The testing mechanism includes a rectangular cylinder arranged in the middle of the bottom wall surface of the workbench. A rectangular pipe is slidably connected in the rectangular cylinder. An installation frame is provided on the upper surface of the rectangular pipe. Laser sensors are annularly and evenly distributed at the lower end of the outer arc surface of the installation frame. An opening adapted to the installation frame is provided on the upper end surface of the rotating shell. A driving component for driving the movable clamping block to move is also provided on the rotating shell. A conductive component is further provided between the workbench and the rotating shell.
[0006] The testing mechanism further includes an electric telescopic rod arranged in the middle of the bottom wall surface of the rectangular cylinder, and the upper end of the telescopic end of the electric telescopic rod is fixedly connected to the top wall surface of the installation frame.
[0007] A reflecting plate is provided in the middle of the inner side surface of the movable clamping block, and the reflecting plates are respectively arranged in cooperation with the laser sensors adjacent to the same side.
[0008] The driving assembly includes a lead screw that is annularly and evenly rotatably connected inside the rotating shell. The lead screws are respectively threadedly connected to the screw holes provided at the lower ends of the movable clamping blocks adjacent to the same side. The driving assembly further includes gears respectively provided at the outer ends of the outer arc surfaces of the lead screws. A toothed ring is rotatably connected to the lower end of the inner arc surface of the rotating shell, and the gears are all meshed with the toothed ring. A motor one is provided at the right end of the outer arc surface of the rotating shell, and the left end of the output shaft of the motor one is fixedly connected to the right extended end of the lead screw adjacent to the same side.
[0009] The conductive assembly includes a carbon brush provided in the middle of the upper surface of the workbench. A conductive slip ring is provided at the lower end of the outer arc surface of the rotating shell. The carbon brush is slidably connected to the conductive slip ring. The motor one, the laser sensor, and the electric telescopic rod are all electrically connected to the conductive slip ring, and the carbon brush is electrically connected to an external single-chip microcomputer.
[0010] A motor two is provided in the middle of the lower surface of the workbench. The upper end of the output shaft of the motor two is fixedly connected to the lower extended end of the rotating shell. The motor two is electrically connected to an external single-chip microcomputer.
[0011] The beneficial effects of the above technical solutions of the present utility model are as follows:
[0012] 1. When clamping the flywheel, the relevant staff turn on the clamping component for checking the position degree of the flywheel signal hole. At this time, the external single-chip microcomputer runs the set instruction to control the operation of the electric telescopic rod. The telescopic end of the electric telescopic rod drives the rectangular tube, the mounting bracket and the laser sensor to move upward synchronously. After the laser sensor moves to the specified position, the external single-chip microcomputer controls the electric telescopic rod to stop operating, and at the same time controls the laser sensor and the first motor to operate synchronously. The laser sensor generates a laser beam through the built-in laser diode. After the laser beam is focused, it irradiates the movable clamping block. Part of the laser beam will be reflected, diffused or scattered by the target object, and then the built-in photoelectric receiving detector receives the laser signal returned by the target object. By analyzing the received laser signal, information such as the distance, shape and position of the target object can be determined. Finally, the laser sensor converts the measurement result into a digital signal and synchronizes it into the external single-chip microcomputer. At the same time, the output shaft of the first motor rotates to drive the right screw rod and the gear on it to rotate synchronously. While the right screw rod and the gear on it are rotating, they drive the other gears and screw rods to rotate synchronously through the tooth ring. During the rotation of the screw rod, it drives the movable clamping block to move synchronously along the chute. During this process, the laser sensor is used to detect the synchronization degree and displacement distance of the movable clamping block in real time, so as to ensure that the flywheel can always be at the center of the rotating shell when being clamped, reducing the time required for checking the accuracy of the clamping component for checking the position degree of the flywheel signal hole before use. At the same time, when not in use, the laser sensor can be retracted into the rotating shell, thus playing a role in protecting the laser sensor safely.
[0013] 2. When the external single-chip microcomputer determines that the synchronization degree and displacement distance of the movable clamping block during movement are inconsistent, the relevant staff will carry out maintenance. There is no need to use an external detection device for detection. It can automatically run the test mechanism after starting up. When the external single-chip microcomputer determines that everything is normal, the external single-chip microcomputer controls each mechanism to reset. Then, the relevant staff place the flywheel on the rotating shell and between the movable clamping blocks. After that, the relevant staff control the first motor to operate through the external single-chip microcomputer. The output shaft of the first motor rotates to drive the right screw rod and the gear on it to rotate synchronously. While the right screw rod and the gear on it are rotating, they drive the other gears and screw rods to rotate synchronously through the tooth ring. During the rotation of the screw rod, it drives the movable clamping block to move synchronously and centripetally along the chute, so as to clamp the flywheel and ensure that the flywheel can be accurately located at the center of the rotating shell. The second motor can drive the rotating shell and its attached mechanisms to rotate, so as to cope with the detection of different parts.
[0014] 3. The reflector can reflect the laser beam more efficiently, thus improving the accuracy of the inspection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the main structure of the clamping component for checking the position degree of the flywheel signal hole of the present utility model;
[0016] Figure 2 Structural schematic diagram of the test mechanism of the present utility model;
[0017] Figure 3 Enlarged structural schematic diagram of position A of the present utility model;
[0018] Figure 4 Enlarged structural schematic diagram of position B of the present utility model.
[0019] Explanation of reference numerals in the drawings: 100, workbench; 200, rectangular cylinder; 201, rectangular pipe; 202, mounting bracket; 203, laser sensor; 204, electric telescopic rod; 300, rotating shell; 301, sliding groove; 302, movable clamping block; 400, reflector; 500, lead screw; 501, gear; 502, tooth ring; 503, motor 1; 600, brush; 601, conductive slip ring; 700, motor 2. Specific implementation mode
[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will combine the accompanying drawings of the embodiments of the present utility model Figures 1-4 to clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.
[0021] As Figures 1-4 shown:
[0022] This embodiment provides a clamping assembly for checking the position degree of the flywheel signal hole, including a workbench 100 and a clamping mechanism rotatably connected to the middle of the upper surface of the workbench 100. The clamping mechanism includes a rotating shell 300 rotatably connected to the middle of the upper surface of the workbench 100. The upper end surface of the rotating shell 300 is provided with sliding grooves 301 evenly distributed in a ring shape. Movable clamping blocks 302 are slidably connected in the sliding grooves 301. A test mechanism is also provided in the middle of the workbench 100. The test mechanism includes a rectangular cylinder 200 provided in the middle of the bottom wall surface of the workbench 100. A rectangular pipe 201 is slidably connected in the rectangular cylinder 200. The upper surface of the rectangular pipe 201 is provided with a mounting bracket 202. The lower end of the outer arc surface of the mounting bracket 202 is provided with laser sensors 203 evenly distributed in a ring shape. The upper end surface of the rotating shell 300 is provided with an opening adapted to the mounting bracket 202. A driving assembly for driving the movable clamping block 302 to move is also provided on the rotating shell 300. A conductive assembly is also provided between the workbench 100 and the rotating shell 300; the test mechanism further includes an electric telescopic rod 204 provided in the middle of the bottom wall surface of the rectangular cylinder 200. The upper end of the telescopic end of the electric telescopic rod 204 is fixedly connected to the top wall surface of the mounting bracket 202.
[0023] As Figures 1-4 shown, the driving assembly includes a lead screw 500 that is annularly and evenly rotatably connected inside the rotating housing 300. The lead screw 500 is respectively threadedly connected to the threaded holes provided at the lower ends of the adjacent movable clamping blocks 302 on the same side. The driving assembly further includes gears 501 respectively provided at the outer ends of the outer arc surfaces of the lead screw 500. A toothed ring 502 is rotatably connected to the lower end of the inner arc surface of the rotating housing 300. The gears 501 are all meshed with the toothed ring 502. A first motor 503 is provided at the right end of the outer arc surface of the rotating housing 300. The left end of the output shaft of the first motor 503 is fixedly connected to the right extended end of the adjacent lead screw 500 on the same side.
[0024] As Figures 1-3 shown, the conductive assembly includes a brush 600 provided in the middle of the upper surface of the workbench 100. A conductive slip ring 601 is provided at the lower end of the outer arc surface of the rotating housing 300. The brush 600 is slidably connected to the conductive slip ring 601. The first motor 503, the laser sensor 203, and the electric telescopic rod 204 are all electrically connected to the conductive slip ring 601. The brush 600 is electrically connected to an external single-chip microcomputer.
[0025] As Figures 1-4 shown, a second motor 700 is provided in the middle of the lower surface of the workbench 100. The upper end of the output shaft of the second motor 700 is fixedly connected to the lower extended end of the rotating housing 300. The second motor 700 is electrically connected to an external single-chip microcomputer.
[0026] The working principle of the clamping assembly for checking the position degree of the flywheel signal hole provided by the utility model is as follows: When clamping the flywheel, the relevant staff turn on the clamping assembly for checking the position degree of the flywheel signal hole. At this time, the external single-chip microcomputer runs the set instruction to control the operation of the electric telescopic rod 204. The telescopic end of the electric telescopic rod 204 drives the rectangular tube 201, the mounting bracket 202 and the laser sensor 203 to move upward synchronously. After the laser sensor 203 moves to the specified position, the external single-chip microcomputer controls the electric telescopic rod 204 to stop operating, and at the same time controls the laser sensor 203 and the first motor 503 to operate synchronously. The laser sensor 203 generates a beam of laser through the built-in laser diode. After the laser beam is focused, it irradiates on the movable clamping block 302. Part of the laser beam will be reflected, diffused or scattered by the target object, and then the built-in photoelectric receiving detector receives the laser signal returned by the target object. By analyzing the received laser signal, information such as the distance, shape and position of the target object can be determined. Finally, the laser sensor 203 converts the measurement result into a digital signal and synchronizes it into the external single-chip microcomputer. At the same time, the output shaft of the first motor 503 rotates to drive the right screw rod 500 and the gear 501 thereon to rotate synchronously. While the right screw rod 500 and the gear 501 thereon are rotating, they drive the remaining gears 501 and screw rods 500 to rotate synchronously through the tooth ring 502. During the rotation of the screw rod 500, it drives the movable clamping block 302 to move synchronously along the sliding groove 301. During this process, the laser sensor 203 is used to detect the synchronization degree and displacement distance of the movable clamping block 302 during movement in real time, so as to ensure that the flywheel can always be located at the center of the rotating shell 300 when being clamped, reducing the time required for checking the accuracy of the clamping assembly for checking the position degree of the flywheel signal hole before use. When the external single-chip microcomputer determines that the synchronization degree and displacement distance of the movable clamping block 302 during movement are inconsistent, the relevant staff will carry out maintenance. There is no need to use an external detection device for detection, and the test mechanism can be automatically operated after starting up. When the external single-chip microcomputer determines that everything is normal, the external single-chip microcomputer controls each mechanism to reset. Then, the relevant staff place the flywheel on the rotating shell 300 and place it between the movable clamping blocks 302. After that, the relevant staff control the first motor 503 to operate through the external single-chip microcomputer. The output shaft of the first motor 503 rotates to drive the right screw rod 500 and the gear 501 thereon to rotate synchronously. While the right screw rod 500 and the gear 501 thereon are rotating, they drive the remaining gears 501 and screw rods 500 to rotate synchronously through the tooth ring 502. During the rotation of the screw rod 500, it drives the movable clamping block 302 to move synchronously centripetally along the sliding groove 301, so as to clamp the flywheel and ensure that the flywheel can be accurately located at the center of the rotating shell 300. The second motor 700 can drive the rotating shell 300 and its attached mechanisms to rotate, so as to cope with the detection of different parts.
[0027] Such as Figures 1-4As shown, reflectors 400 are provided in the middle of the inner sides of the movable clamping blocks 302. The reflectors 400 are respectively arranged in cooperation with the adjacent laser sensors 203 on the same side. The reflectors 400 can reflect the laser beams back more efficiently, thereby improving the accuracy of inspection.
[0028] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0029] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.
Claims
1. A clamping assembly for detecting the position of a flywheel signal hole, characterized in that: The invention comprises a workbench (100) and a clamping mechanism rotatably connected to the middle of the upper surface of the workbench (100), wherein the clamping mechanism comprises a rotating shell (300) rotatably connected to the middle of the upper surface of the workbench (100), the upper end surface of the rotating shell (300) is provided with annular evenly distributed slide grooves (301), and movable clamping blocks (302) are slidably connected in the slide grooves (301), and the middle of the workbench (100) is also provided with a testing mechanism, and the testing mechanism comprises a rectangular tube (200) arranged in the middle of the bottom wall of the workbench (100) A rectangular tube (201) is slidably connected inside the rectangular cylinder (200), a mounting bracket (202) is provided on the upper surface of the rectangular tube (201), and a ring-shaped uniformly distributed laser sensor (203) is provided at the lower end of the outer arc surface of the mounting bracket (202), an opening matched with the mounting bracket (202) is provided on the upper end surface of the rotating shell (300), a driving component for driving the movable clamp (302) to move is also provided on the rotating shell (300), and a conductive component is also provided between the workbench (100) and the rotating shell (300).
2. The clamping assembly for detecting the position of the flywheel signal hole according to claim 1, characterized in that: The testing mechanism also includes an electric telescopic rod (204) arranged in the middle of the bottom wall of the rectangular tube (200), and the upper end of the telescopic end of the electric telescopic rod (204) is fixedly connected to the top wall of the mounting frame (202).
3. The clamping assembly for detecting the position of the flywheel signal hole according to claim 2, characterized in that: A reflective plate (400) is provided in the middle of the inner side surface of the movable clamping block (302), and the reflective plate (400) is respectively arranged in cooperation with adjacent laser sensors (203) on the same side.
4. The clamping assembly for detecting the position of the flywheel signal hole according to claim 3, characterized in that: The driving assembly comprises a screw rod (500) which is connected to the rotating shell (300) in an annular and uniform rotation manner, and the screw rod (500) is respectively threadedly connected to screw holes arranged at the lower ends of the movable clamping blocks (302) adjacent to the same side.
5. The clamping assembly for detecting the position of the flywheel signal hole according to claim 4, characterized in that: The driving assembly also includes gears (501) respectively arranged on the outer ends of the outer arc surface of the screw rod (500); the lower end of the inner arc surface of the rotating shell (300) is rotatably connected to a toothed ring (502); the gears (501) are meshingly connected to the toothed ring (502); the right end of the outer arc surface of the rotating shell (300) is provided with a motor 1 (503); the left end of the output shaft of the motor 1 (503) is fixedly connected to the right extension end of the screw rod (500) adjacent to the same side.
6. The clamping assembly for detecting the position of the flywheel signal hole according to claim 5, characterized in that: The conductive component comprises a brush (600) arranged in the middle of the upper surface of the workbench (100); a conductive slip ring (601) is provided at the lower end of the outer arc surface of the rotating shell (300); the brush (600) is slidably connected to the conductive slip ring (601); the motor 1 (503), the laser sensor (203) and the electric telescopic rod (204) are all electrically connected to the conductive slip ring (601); and the brush (600) is electrically connected to an external single-chip computer.
7. The clamping assembly for detecting the position of the flywheel signal hole according to claim 1, characterized in that: A second motor (700) is provided in the middle of the lower surface of the workbench (100), the upper end of the output shaft of the second motor (700) is fixedly connected to the lower extension end of the rotating shell (300), and the second motor (700) is electrically connected to an external single chip computer.