Positioning device for crankshaft detection
Automatic fixing and flipping of the crankshaft is achieved through an automated positioning device, which solves the problem of uneven clamping force caused by traditional manual operation and improves the stability and accuracy of crankshaft detection.
Patent Information
- Application Number
- CN202422442914.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In traditional crankshaft detection, manual operation is difficult to ensure that the clamping force applied each time is completely consistent, resulting in uneven clamping force and affecting the detection accuracy.
Using an automated positioning device, the screw is driven by a double-headed motor to move the mounting plate and the cylinder drive the clamping block to achieve automatic fixation of the crankshaft, and the flip assembly is used to drive the worm and worm gear to achieve automatic flip of the crankshaft.
Ensure that the position and force are consistent every time the crankshaft is fixed, reduce human error, and improve detection stability and accuracy.
Smart Images
Figure CN223130539U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crankshaft detection and fixation, and particularly relates to a positioning device for crankshaft detection. Background Art
[0002] The crankshaft is a key rotating component in internal combustion engines and other mechanical equipment. Its main function is to convert the reciprocating linear motion of the piston into rotational motion, thereby driving the operation of the mechanical equipment. The crankshaft consists of multiple journal shafts, connecting rod journals, and cranks. Its complex geometric shape and precise machining requirements make it an important component in mechanical manufacturing.
[0003] After the crankshaft is processed, in order to ensure that it meets the design requirements and quality standards, a series of strict tests need to be carried out on it. During the crankshaft detection process, a positioning device is required to fix the crankshaft to be detected, preventing the crankshaft from moving or vibrating during the detection process and ensuring the accuracy of the detection results.
[0004] When the traditional positioning device fixes the crankshaft, by utilizing the screw thread transmission of the screw rod and the nut, the clamping force is applied by rotating the screw rod to fix the crankshaft on the positioning frame. This fixing method requires the operator to manually fix the crankshaft. Manual operation is difficult to ensure that the clamping force applied each time is exactly the same. Due to the force difference and operation habits among different operators, it is easy to cause uneven clamping force. This may cause slight movement or deformation of the crankshaft during the detection process, affecting the detection accuracy. Summary of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a positioning device for crankshaft detection, aiming to improve the problem that it is difficult to ensure that the clamping force applied each time is exactly the same in the prior art, and due to the force difference and operation habits among different operators, it is easy to cause uneven clamping force.
[0006] To achieve the above object, the utility model provides the following technical solutions:
[0007] A positioning device for crankshaft detection, including a processing table, both sides of the upper part of the processing table are fixedly connected with fixing plates, an adjusting component is arranged on the upper part of the processing table, both sides of the upper part of the adjusting component are fixedly connected with mounting plates, a flipping component is arranged outside the left mounting plate, a rotating shaft is rotatably connected inside the right mounting plate, a second mounting disc is fixedly connected to the outside of the rotating shaft, both sides of the outside of the second mounting disc are fixedly connected with second limiting rods, mounting frames are fixedly connected to the outside of both the second mounting disc and the flipping component, a cylinder is fixedly connected inside the mounting frame, an adjusting block is fixedly connected to the output end of the cylinder, one ends of connecting plates are rotatably connected to the outside of the periphery of the mounting frame, the other ends of a plurality of the connecting plates are fixedly connected with clamping blocks, one ends of a plurality of connecting rods are rotatably connected to the outside of the periphery of the adjusting block, and the other ends of the plurality of connecting rods are rotatably connected inside the plurality of connecting plates.
[0008] Further, the flipping component includes a driving motor, the driving motor is arranged outside the left mounting plate, a worm is fixedly connected to the output end of the driving motor, a worm gear is meshed and connected to the outside of the worm, a rotating rod is fixedly connected inside the worm gear, a first mounting disc is fixedly connected to the outside of the right side of the rotating rod, and first limiting rods are fixedly connected to both sides of the outside of the first mounting disc.
[0009] Further, the adjusting component includes a double-headed motor, the double-headed motor is fixedly connected to the upper part of the processing table, lead screws are fixedly connected to the output ends of the double-headed motor, the two lead screws are rotatably connected inside the two fixing plates, and moving plates are threadedly connected to the outside of the two lead screws.
[0010] Further, a first annular groove is formed inside the left mounting plate, and the two first limiting rods are slidably connected inside the first annular groove.
[0011] Further, a second annular groove is formed inside the right mounting plate, and the two second limiting rods are slidably connected inside the two second annular grooves.
[0012] Further, guide rods are fixedly connected to both sides of the inside of the two fixing plates, and the moving plates are slidably connected to the outside of the two guide rods.
[0013] Further, a controller is installed on the right side of the upper part of the processing table, the controller is electrically connected to the double-headed motor and the driving motor, a cabinet door is installed on the front side of the outside of the processing table, and a handle is fixedly connected to the outside of the cabinet door.
[0014] Further, a support plate is fixedly connected to the outside of the left mounting plate, and the driving motor is fixedly connected to the upper part of the support plate.
[0015] The utility model has the following beneficial effects:
[0016] 1. In the present utility model, when fixing the crankshaft, first start the double-headed motor. The rotation of the lead screw drives the moving plate to move, and then drives the mounting plate and the mounting disc to move relatively. When the mounting disc is adjusted to the appropriate distance, place both ends of the crankshaft in the middle of the clamping block, and start the cylinder to make the adjusting block contract, driving the connecting rod and the connecting plate to move, and then making the clamping block move relatively to fix one end of the crankshaft. The fixing method for the other end is the same, realizing the automatic fixing of the crankshaft, eliminating the need for operators to manually fix the crankshaft. Automatic fixing can ensure that the position and force are consistent each time the crankshaft is fixed, reducing the errors that may be caused by manual operation and improving the stability of the crankshaft during the detection process.
[0017] 2. In the present utility model, when detecting the crankshaft, if it is necessary to detect the other side of the crankshaft, start the driving motor to make the worm rotate, which in turn drives the worm wheel, the rotating rod and the first mounting disc to rotate, and finally makes the crankshaft rotate. This realizes the convenience of flipping the crankshaft during the detection of the crankshaft, enabling the detection equipment to comprehensively inspect the crankshaft from all angles and improving the detection accuracy and integrity. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a perspective view of a positioning device for crankshaft detection proposed by the present utility model;
[0019] Figure 2 is a schematic diagram of the external structure of the left mounting plate of a positioning device for crankshaft detection proposed by the present utility model;
[0020] Figure 3 is a schematic diagram of the upper structure of the processing table of a positioning device for crankshaft detection proposed by the present utility model;
[0021] Figure 4 is a cross-sectional view of the first mounting disc of a positioning device for crankshaft detection proposed by the present utility model.
[0022] LEGEND DESCRIPTION:
[0023] 1. Processing table; 2. Cabinet door; 3. Controller; 4. Guide rod; 5. Adjusting assembly; 501. Double-headed motor; 502. Lead screw; 503. Moving plate; 6. Fixed plate; 7. Mounting plate; 8. Support plate; 9. Flipping assembly; 901. Driving motor; 902. Worm; 903. Worm wheel; 904. Rotating rod; 905. First mounting disc; 906. First limiting rod; 10. First annular groove; 11. Mounting frame; 12. Cylinder; 13. Connecting plate; 14. Adjusting block; 15. Connecting rod; 16. Clamping block; 17. Second mounting disc; 18. Second limiting rod; 19. Second annular groove; 20. Rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0025] Referring to Figure 1 、 Figure 2 and Figure 4 , an embodiment provided by the present utility model: a positioning device for crankshaft detection, including a processing table 1, both sides of the upper part of the processing table 1 are fixedly connected with fixing plates 6, an adjusting component 5 is arranged on the upper part of the processing table 1, both sides of the upper part of the adjusting component 5 are fixedly connected with mounting plates 7, a flipping component 9 is arranged outside the left mounting plate 7, a rotating shaft 20 is rotatably connected inside the right mounting plate 7, a second mounting disc 17 is fixedly connected to the outside of the rotating shaft 20, both sides of the outside of the second mounting disc 17 are fixedly connected with second limiting rods 18, mounting frames 11 are fixedly connected to the outside of both the second mounting disc 17 and the flipping component 9, a cylinder 12 is fixedly connected inside the mounting frame 11, an adjusting block 14 is fixedly connected to the output end of the cylinder 12, one end of a connecting plate 13 is rotatably connected to the outside of the mounting frame 11, the other ends of a plurality of connecting plates 13 are fixedly connected with clamping blocks 16, one end of a connecting rod 15 is rotatably connected to the outside of the adjusting block 14, and the other ends of a plurality of connecting rods 15 are rotatably connected inside a plurality of connecting plates 13. The adjusting component 5 includes a double-headed motor 501, the double-headed motor 501 is fixedly connected to the upper part of the processing table 1, screw rods 502 are fixedly connected to the output ends of the double-headed motor 501, the two screw rods 502 are rotatably connected inside the two fixing plates 6, moving plates 503 are threadedly connected to the outside of the two screw rods 502, a second annular groove 19 is formed inside the right mounting plate 7, the two second limiting rods 18 are slidably connected inside the two second annular grooves 19, guide rods 4 are fixedly connected to both sides inside the two fixing plates 6, and the moving plates 503 are slidably connected to the outside of the two guide rods 4. A controller 3 is installed on the upper right side of the processing table 1, and the controller 3 is electrically connected to the double-headed motor 501 and the driving motor 901. A cabinet door 2 is installed on the front side of the outside of the processing table 1, and a handle is fixedly connected to the outside of the cabinet door 2.
[0026] When fixing the crankshaft, first, start the double-headed motor 501. With the start of the double-headed motor 501, the two lead screws 502 fixed to its output end begin synchronous rotational movement. These two lead screws 502 not only rotate, but also have threads on their exteriors, and these threads match the threads inside the two moving plates 503. Therefore, when the lead screws 502 rotate, they drive the two moving plates 503 to move relatively through the interaction of the threads. This relative movement ensures that the moving plates 503 can move precisely along the preset trajectory. As the two moving plates 503 move, the two mounting plates 7 fixed to their upper parts also move relatively accordingly. These two mounting plates 7 not only carry out important fixing tasks, but also provide a stable support platform for the fixing of the crankshaft through the first mounting disc 905 and the second mounting disc 17 installed externally. When the first mounting disc 905 and the second mounting disc 17 are adjusted to the appropriate distance through the movement of the mounting plate 7, the crankshaft can be placed. The operator places the two ends of the crankshaft in the middle of the four clamping blocks 16 respectively. Next, start the cylinder 12. The start of the cylinder 12 will drive the adjusting block 14 fixed to its output end to perform a contraction movement. This contraction movement is not limited to the adjusting block 14 itself, but also drives the four connecting rods 15 to move together through the connecting rods 15 rotatably connected to its outer periphery. When these four connecting rods 15 move, they drive the four connecting plates 13 rotatably connected to the other end to move relatively. Since the other ends of the connecting plates 13 are fixed with four clamping blocks 16, these four clamping blocks 16 also move relatively as the connecting plates 13 move. Through this relative movement, the four clamping blocks 16 can tightly clamp one end of the crankshaft, thus realizing the fixing of the crankshaft. For the other end of the crankshaft, just repeat the above operation steps to achieve fixing, realizing the automatic fixing of the crankshaft without the operator manually fixing the crankshaft. The automatic fixing can ensure that the position and force are consistent each time the crankshaft is fixed, reduce the errors that may be brought by manual operation, and improve the stability of the crankshaft during the detection process.
[0027] Referring to Figure 2 、 Figure 3 and Figure 4 , the flipping assembly 9 includes a driving motor 901. The driving motor 901 is arranged outside the left mounting plate 7. The output end of the driving motor 901 is fixedly connected with a worm 902. The worm 902 is externally meshed with a worm gear 903. The interior of the worm gear 903 is fixedly connected with a rotating rod 904. The exterior of the rotating rod 904 is fixedly connected with a first mounting disc 905 on the right side. Both sides of the exterior of the first mounting disc 905 are fixedly connected with first limiting rods 906. A first annular groove 10 is formed inside the left mounting plate 7. The two first limiting rods 906 are slidably connected inside the first annular groove 10. The exterior of the left mounting plate 7 is fixedly connected with a support plate 8. The driving motor 901 is fixedly connected to the upper part of the support plate 8.
[0028] In the process of crankshaft detection, when it is necessary to conduct a detailed inspection of the other side of the crankshaft, start the drive motor 901, and it will drive the worm 902 fixed to its output end to start rotating. The design of the worm 902 fully considers the smoothness and accuracy of transmission. The spiral line on its surface can ensure seamless meshing with the worm wheel 903 during rotation. As the worm 902 rotates, the worm wheel 903 externally meshed with it also starts to rotate synchronously. A rotating rod 904 is fixed inside the worm wheel 903. When the worm wheel 903 rotates, the rotating rod 904 will also rotate accordingly. The rotation of the rotating rod 904 is the key to the entire crankshaft flipping action. It transmits power to the crankshaft through the first mounting plate 905 fixed externally. When the first mounting plate 905 rotates, the crankshaft will also rotate accordingly, thus realizing the inspection of the other side of the crankshaft. In the process of crankshaft detection, it is convenient to flip the crankshaft, enabling the detection equipment to comprehensively inspect the crankshaft from all angles and improving the detection accuracy and integrity.
[0029] Working principle: When fixing the crankshaft, first, start the double-headed motor 501. The double-headed motor 501 drives the two lead screws 502 fixed to the output ends to rotate. The rotation of the two lead screws 502 drives the two moving plates 503 connected by external threads to move relatively. The movement of the two moving plates 503 drives the two mounting plates 7 fixed to the upper part to move relatively. The relative movement of the two mounting plates 7 drives the first mounting plate 905 and the second mounting plate 17 mounted externally to move relatively. When the first mounting plate 905 and the second mounting plate 17 are adjusted to the appropriate distance, place the two ends of the crankshaft in the middle of the four clamping blocks 16 respectively. Then start the cylinder 12. The cylinder 12 drives the adjusting block 14 fixed to the output end to contract. The contraction of the adjusting block 14 drives the connecting rod 15 rotatably connected to the periphery externally to move together. When the four connecting rods 15 move, they drive the four connecting plates 13 rotatably connected to the other ends to move relatively. The relative movement of the four connecting plates 13 drives the four clamping blocks 16 fixed to the other ends to move relatively. By the relative movement of the four clamping blocks 16, one end of the crankshaft can be fixed. For the fixing method of the other end of the crankshaft, repeat the above operation steps. It realizes the automatic fixing of the crankshaft, eliminating the need for operators to manually fix the crankshaft. Automatic fixing can ensure that the position and force are consistent each time the crankshaft is fixed, reducing the errors that may be caused by manual operation and improving the stability of the crankshaft during the detection process. Then, when detecting the other side of the crankshaft during the detection of the crankshaft, start the driving motor 901. The driving motor 901 drives the worm 902 fixed to the output end to rotate. The rotation of the worm 902 drives the worm gear 903 engaged externally to rotate. The rotation of the worm gear 903 drives the rotating rod 904 fixed internally to rotate. The rotation of the rotating rod 904 drives the first mounting plate 905 fixed externally to rotate. The rotation of the first mounting plate 905 drives the externally fixed crankshaft to rotate. It realizes the convenience of flipping the crankshaft during the detection of the crankshaft, enabling the detection equipment to comprehensively inspect the crankshaft from all angles and improving the detection accuracy and integrity.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A positioning device for crankshaft detection, comprising a processing table (1), characterized in that: On both sides of the upper part of the processing table (1), fixed connection plates (6) are fixedly connected. An adjusting component (5) is arranged on the upper part of the processing table (1). On both sides of the upper part of the adjusting component (5), mounting plates (7) are fixedly connected. A flipping component (9) is arranged outside the left mounting plate (7). A rotating shaft (20) is rotatably connected inside the right mounting plate (7). A second mounting disc (17) is fixedly connected to the outside of the rotating shaft (20). On both sides of the outside of the second mounting disc (17), second limiting rods (18) are fixedly connected. Mounting frames (11) are fixedly connected to the outside of both the second mounting disc (17) and the flipping component (9). A cylinder (12) is fixedly connected inside the mounting frame (11). An adjusting block (14) is fixedly connected to the output end of the cylinder (12). One end of a connecting plate (13) is rotatably connected to the outside of the mounting frame (11). The other ends of a plurality of the connecting plates (13) are fixedly connected to clamping blocks (16). One end of a connecting rod (15) is rotatably connected to the outside of the adjusting block (14). The other ends of a plurality of the connecting rods (15) are rotatably connected inside a plurality of the connecting plates (13).
2. A positioning device for crankshaft detection according to claim 1, characterized in that: The flipping component (9) includes a driving motor (901). The driving motor (901) is arranged outside the left mounting plate (7). A worm (902) is fixedly connected to the output end of the driving motor (901). A worm gear (903) is meshed and connected to the outside of the worm (902). A rotating rod (904) is fixedly connected inside the worm gear (903). A first mounting disc (905) is fixedly connected to the outside of the right side of the rotating rod (904). On both sides of the outside of the first mounting disc (905), first limiting rods (906) are fixedly connected.
3. A positioning device for crankshaft detection according to claim 1, characterized in that: The adjusting component (5) includes a double-headed motor (501). The double-headed motor (501) is fixedly connected to the upper part of the processing table (1). Lead screws (502) are fixedly connected to the output ends of the double-headed motor (501). The two lead screws (502) are rotatably connected inside the two fixed connection plates (6). Moving plates (503) are threadedly connected to the outside of the two lead screws (502).
4. A positioning device for crankshaft detection according to claim 2, characterized in that: A first annular groove (10) is formed inside the left mounting plate (7). The two first limiting rods (906) are slidably connected inside the first annular groove (10).
5. A positioning device for crankshaft detection according to claim 1, characterized in that: A second annular groove (19) is formed inside the right mounting plate (7). The two second limiting rods (18) are slidably connected inside the two second annular grooves (19).
6. The positioning device for crankshaft detection according to claim 3, wherein: On both sides of the inside of the two fixed connection plates (6), guide rods (4) are fixedly connected. The moving plates (503) are slidably connected to the outside of the two guide rods (4).
7. A positioning device for crankshaft detection according to claim 1, characterized in that: A controller (3) is installed on the upper right side of the processing table (1). The controller (3) is electrically connected to the double-headed motor (501) and the driving motor (901). A cabinet door (2) is installed on the front side of the outside of the processing table (1). A handle is fixedly connected to the outside of the cabinet door (2).
8. A positioning device for crankshaft detection according to claim 2, characterized in that: A support plate (8) is fixedly connected to the outside of the mounting plate (7) on the left side, and the drive motor (901) is fixedly connected to the upper part of the support plate (8).