A crankshaft machining surface defect detection device and system

Abstract

This invention relates to the field of crankshaft defect detection technology, specifically to a crankshaft machining surface defect detection device and system, comprising: a frame on the base surface, a drive motor inside the frame, a first motor on the side of the frame, a display module and a base plate on the frame surface, a lifting screw inside the base plate, and a detection device screwed onto the surface of the lifting screw. The advantages are: firstly, the crankshaft is clamped and fixed using a three-jaw chuck; then, the drive motor can be started, and the crankshaft can be slowly rotated using a traction belt; then, the first motor is started using the display module, which drives the lifting screw to slowly rotate. This allows the detection device screwed onto the lifting screw to move up and down to detect the rotating crankshaft surface. The first motor can cause the lifting screw to rotate in both directions, thus improving the automation level of the detection and reducing the workload of the operators.

Description

Technical Field

[0001] This invention relates to the field of crankshaft defect detection technology, specifically to a crankshaft machining surface defect detection device and system. Background Technology

[0002] The crankshaft is the most important component in an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from the rotating mass, periodically changing gas inertial force, and reciprocating inertial force, resulting in bending and torsional loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the journal surfaces must be wear-resistant, operate evenly, and have good balance.

[0003] In the prior art, after the crankshaft is processed, in order to detect the quality of the processed crankshaft, a testing device is used to inspect the surface of the crankshaft to detect whether there are any defects on the surface of the crankshaft.

[0004] However, the traditional method of inspecting crankshafts involves fixing the crankshaft for ease of inspection, and then having workers hold the inspection device and move it up and down around the crankshaft to inspect it. This not only increases the workload of the workers, but is also time-consuming and inconvenient. To address this issue, we propose a crankshaft machining surface defect inspection device and system to solve the aforementioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a crankshaft machining surface defect detection device and system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a crankshaft machining surface defect detection device and detection system, including a base, a frame body provided on the surface of the base, a support plate provided on the side of the frame body, a groove provided on the surface of the support plate, a vertical rod provided in the groove, a second lifting plate sleeved on the surface of the vertical rod, a hole provided on the surface of the frame body, a bearing provided in the hole, a rotating rod provided in the bearing, a three-jaw chuck provided at one end of the rotating rod, and a drive motor provided inside the frame body;

[0007] The base plate has holes on its surface, and a rotating bearing is installed in the holes. A lifting screw is inserted into the rotating bearing, and a lifting plate is screwed onto the surface of the lifting screw. A detection device is installed on the side of the lifting plate. A display module is installed on the surface of the frame, and a motor base is installed on the side of the frame. A first motor is installed on the surface of the motor base.

[0008] Preferably, the support plate is fixedly connected to the side of the frame, and a scale is provided on the side of the support plate. One end of the upright is fixedly connected to the bottom of the groove, and a spring is sleeved on the surface of the upright. One end of the spring is fixedly connected to the bottom of the second lifting plate, and the other end of the spring is fixedly connected to the surface of the groove.

[0009] Preferably, the second lifting plate can slide up and down on the upright. The side of the second lifting plate is provided with a sliding hole. One end of the sliding hole is an arc-shaped hole. A moving block is provided in the sliding hole. A placement groove is provided on the surface of the moving block. A damping block is provided in the placement groove. A measuring plate is provided at one end of the moving block. The moving block can be displaced in the sliding hole.

[0010] Preferably, a rotating wheel is fitted at one end of the rotating rod, the drive motor is fixedly connected inside the frame, a second rotating wheel is fitted at the transmission end of the drive motor, a traction belt is fitted inside the second rotating wheel, and the second rotating wheel is belt driven by the traction belt and the rotating wheel.

[0011] Preferably, a power supply module is provided on the side of the frame, which can supply power to the drive motor, the first motor and the display module. The display module is fixedly connected to the surface of the frame and is electrically connected to the detection device. A storage module is provided inside the display module.

[0012] Preferably, one end of the motor base is fixedly connected to the side of the frame, the first motor is fixedly connected to the surface of the motor base, the transmission end of the first motor is fitted with a transmission wheel, and the base plate is fixedly connected to the surface of the frame.

[0013] Preferably, the bottom of the base plate has a storage groove, one end of the lifting screw is inserted into the storage groove, one end of the lifting screw is fitted with a driven wheel, and the surfaces of the transmission wheel and the driven wheel are fitted with a transmission belt, which enables the transmission wheel and the driven wheel to perform belt drive. A guide rod is provided on the surface of the base plate.

[0014] Preferably, a positioning frame is provided at one end of the lifting screw, and an installation groove is opened on the end face of the lifting screw. A fixing rod is inserted into the installation groove. A limit plate is provided on the side of the fixing rod, and a second groove is opened on the side of the limit plate. A limit rod is provided at one end of the second groove. A second spring and a limit block are sleeved on the surface of the limit rod. The limit block can slide on the limit rod. One end of the second spring is fixedly connected to the side of the limit block, and the other end of the second spring is fixedly connected to the end face of the second groove. The limit block can be inserted into the positioning frame.

[0015] Preferably, the lifting plate is provided with a guide block on its side, and the guide block has a hole on its surface, into which the guide rod is inserted.

[0016] A detection system includes the aforementioned crankshaft machining surface defect detection device.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention proposes a crankshaft machining surface defect detection device and system. When a crankshaft needs to be inspected, it is first clamped and fixed using a three-jaw chuck. Then, the drive motor is started, and the crankshaft is slowly rotated using a traction belt. Next, the first motor is started using a display module, which drives a lifting screw to rotate slowly. This allows the detection device, screwed onto the lifting screw, to move up and down to inspect the rotating crankshaft surface. The first motor can rotate the lifting screw in both directions. This improves the automation level of the inspection and reduces the workload of the operator. It avoids the traditional crankshaft inspection method, which, for convenience, involves fixing the crankshaft and then having the operator hold the detection device and move it around the crankshaft for inspection. This method not only increases the workload but is also time-consuming and inconvenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a side view of the structure of the present invention;

[0021] Figure 3 This is a partial cross-sectional view of the structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the present invention when it is tilted;

[0023] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0024] Figure 6 This is a flowchart illustrating the structural control process of the present invention.

[0025] In the diagram: 1. Base; 2. Frame; 3. Support plate; 4. Groove; 5. Upright pole; 6. Second lifting plate; 7. Rotating rod; 8. Three-jaw chuck; 9. Drive motor; 10. Base plate; 11. Rotating bearing; 12. Lifting screw; 13. Display module; 14. Motor base; 15. First motor; 16. Lifting plate; 17. Scale; 18. Detection device; 19. Spring; 20. Sliding hole; 21. Moving block; 22. Placement slot; 3. Damping block; 24. Measuring plate; 25. Rotating wheel; 26. Second rotating wheel; 27. Traction belt; 28. Power supply module; 29. ​​Storage module; 30. Transmission wheel; 31. Storage slot; 32. Driven wheel; 33. Transmission belt; 34. Guide rod; 35. Positioning frame; 36. Mounting slot; 37. Fixing rod; 38. Limiting plate; 39. Second groove; 40. Limiting rod; 41. Second spring; 42. Limiting block; 43. Guide block. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the technical solutions of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please see Figures 1 to 6 A crankshaft machining surface defect detection device and system includes a base 1, a frame 2 on the surface of the base 1, a support plate 3 on the side of the frame 2, a groove 4 on the surface of the support plate 3, a vertical rod 5 in the groove 4, a second lifting plate 6 on the surface of the vertical rod 5, a hole on the surface of the frame 2, a bearing in the hole, a rotating rod 7 in the bearing, a three-jaw chuck 8 at one end of the rotating rod 7, and a drive motor 9 inside the frame 2; a bottom plate 10, a hole on the surface of the bottom plate 10, a rotating bearing 11 in the hole, a lifting screw 12 inserted into the rotating bearing 11, a lifting plate 16 screwed onto the surface of the lifting screw 12, a detection device 18 on the side of the lifting plate 16, a display module 13 on the surface of the frame 2, a motor base 14 on the side of the frame 2, and a first motor 15 on the surface of the motor base 14. The detection system includes the aforementioned crankshaft machining surface defect detection device.

[0029] When the crankshaft needs to be inspected, it is first clamped and fixed using a three-jaw chuck 8. Then, the drive motor 9 is started, and the crankshaft is slowly rotated using the traction belt 27. Then, the first motor 15 is started using the display module 13, and the first motor 15 drives the lifting screw 12 to rotate slowly. This allows the inspection device 18, which is screwed onto the lifting screw 12, to move up and down to inspect the rotating crankshaft surface. The first motor 15 can make the lifting screw 12 rotate in both directions. This improves the automation of the inspection and reduces the workload of the staff.

[0030] Example 2

[0031] Based on Embodiment 2, to facilitate the measurement of crankshaft length, a support plate 3 is provided on the side of the frame 2. The support plate 3 is fixedly connected to the side of the frame 2, and a scale 17 is provided on the side of the support plate 3. One end of the upright 5 is fixedly connected to the bottom of the groove 4, and a spring 19 is sleeved on the surface of the upright 5. One end of the spring 19 is fixedly connected to the bottom of the second lifting plate 6, and the other end of the spring 19 is fixedly connected to the surface of the groove 4. The second lifting plate 6 can slide up and down on the upright 5. A sliding hole 20 is provided on the side of the second lifting plate 6, and one end of the sliding hole 20 is... An arc-shaped hole and a sliding hole 20 are provided with a moving block 21. A placement groove 22 is opened on the surface of the moving block 21. A damping block 23 is provided in the placement groove 22. A measuring plate 24 is provided at one end of the moving block 21. The moving block 21 can be displaced within the sliding hole 20. A power supply module 28 is provided on the side of the frame 2. The power supply module 28 can supply power to the drive motor 9, the first motor 15 and the display module 13. The display module 13 is fixedly connected to the surface of the frame 2. The display module 13 is electrically connected to the detection device 18. A storage module 29 is provided inside the display module 13.

[0032] When in use, after the crankshaft is fixed by the three-jaw chuck 8, the second lifting plate 6 can be pressed to make the measuring plate 24 at one end of the second lifting plate 6 contact one end of the crankshaft. Then, the length of the crankshaft can be determined according to the position indicated on the scale 17 on the side of the second lifting plate 6. When the crankshaft needs to be removed, in order to prevent the measuring plate 24 from obstructing the crankshaft, the measuring plate 24 can be pushed backward so that the moving block 21 is located at the arc position at one end of the sliding hole 20. Then, the measuring plate 24 can be rotated to avoid obstructing the crankshaft. The setting of the damping block 23 can prevent the moving block 21 from moving randomly in the sliding hole 20. The display module 13 can use the internal storage module 29 to store the crankshaft detection data, which is convenient for subsequent recording and viewing.

[0033] Example 3

[0034] Based on Embodiment 2, a detection device 18 is provided for convenient crankshaft inspection. A rotating wheel 25 is fitted onto one end of the rotating rod 7. The drive motor 9 is fixedly connected inside the frame 2. A second rotating wheel 26 is fitted onto the transmission end of the drive motor 9. A traction belt 27 is fitted inside the second rotating wheel 26. The second rotating wheel 26 is belt-driven with the rotating wheel 25 via the traction belt 27. One end of the motor base 14 is fixedly connected to the side of the frame 2. A first motor 15 is fixedly connected to the surface of the motor base 14. A transmission wheel 30 is fitted onto the transmission end of the first motor 15. The base plate 10 is fixedly connected to the surface of the frame 2. A storage groove 31 is provided at the bottom of the base plate 10. One end of the lifting screw 12 is inserted into the storage groove 31. A driven wheel 32 is fitted onto one end of the lifting screw 12. A transmission belt 33 is fitted onto the surfaces of the transmission wheel 30 and the driven wheel 32, enabling transmission via the transmission belt 33. Wheel 30 and driven wheel 32 are belt driven. Guide rod 34 is provided on the surface of base plate 10. Positioning frame 35 is provided at one end of lifting screw 12. Mounting groove 36 is opened on the end face of lifting screw 12. Fixed rod 37 is inserted into mounting groove 36. Limiting plate 38 is provided on the side of fixed rod 37. Second groove 39 is opened on the side of limiting plate 38. Limiting rod 40 is provided at one end of second groove 39. Second spring 41 and limiting block 42 are sleeved on the surface of limiting rod 40. Limiting block 42 can slide on limiting rod 40. One end of second spring 41 is fixedly connected to the side of limiting block 42. The other end of second spring 41 is fixedly connected to the end face of second groove 39. Limiting block 42 can be inserted into positioning frame 35. Guide block 43 is provided on the side of lifting plate 16. Hole is opened on the surface of guide block 43. Guide rod 34 is inserted into the hole opened on the surface of guide block 43.

[0035] In use, the drive motor 9, in conjunction with the traction belt 27, drives the rotating rod 7 to rotate, thus rotating the crankshaft inside the three-jaw chuck 8. Then, starting the first motor 15, the transmission belt 33, in conjunction with the transmission wheel 30 and the driven wheel 32, rotates the lifting screw 12, causing the detection device 18 on the side of the second lifting plate 6 to move and scan the crankshaft surface for inspection. The guide rod 34 prevents the second lifting plate 6 from rotating with the lifting screw 12. When the detection device 18 needs to be removed, the limiting plate 38 can be pulled to disengage it from the positioning frame 35, allowing the fixing rod 37 to be removed from the mounting slot 36. Then, the second lifting plate 6 can be screwed out from one end of the lifting screw 12. The second spring 41 provides a certain limiting effect on the limiting plate 38, preventing it from being arbitrarily removed from the positioning frame 35.

[0036] In practical use, when crankshaft inspection is required, the crankshaft is first clamped and fixed using a three-jaw chuck 8. Then, the drive motor 9 is started, and the crankshaft is slowly rotated using the traction belt 27. Next, the first motor 15 is started using the display module 13, which drives the lifting screw 12 to rotate slowly. This allows the inspection device 18, screwed onto the lifting screw 12, to move up and down to inspect the rotating crankshaft surface. The first motor 15 can rotate the lifting screw 12 in both directions. This improves the automation level of the inspection and reduces the workload of the operators. It avoids the traditional crankshaft inspection method, where the crankshaft is fixed for convenience, and the operator holds the inspection device 18 and moves it up and down, which increases the workload, is time-consuming, and inconvenient.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crankshaft machining surface defect detection device, comprising a base (1), characterized in that, The base (1) has a frame (2) on its surface, a support plate (3) on its side, a groove (4) on its surface, a vertical rod (5) in the groove (4), a second lifting plate (6) on its surface, a hole on its surface, a bearing in the hole, a rotating rod (7) in the bearing, a three-jaw chuck (8) at one end of the rotating rod (7), and a drive motor (9) inside the frame (2). The base plate (10) has holes on its surface, and a rotating bearing (11) is installed in the holes. A lifting screw (12) is inserted into the rotating bearing (11). A lifting plate (16) is screwed onto the surface of the lifting screw (12). A detection device (18) is installed on the side of the lifting plate (16). A display module (13) is installed on the surface of the frame (2). A motor base (14) is installed on the side of the frame (2). A first motor (15) is installed on the surface of the motor base (14). The support plate (3) is fixedly connected to the side of the frame (2). A scale (17) is installed on the side of the support plate (3). One end of the upright (5) is fixedly connected to the bottom of the groove (4). (5) A spring (19) is fitted on the surface. One end of the spring (19) is fixedly connected to the bottom of the second lifting plate (6), and the other end of the spring (19) is fixedly connected to the surface of the groove (4). The second lifting plate (6) can slide up and down on the upright (5). A sliding hole (20) is opened on the side of the second lifting plate (6). One end of the sliding hole (20) is an arc-shaped hole. A moving block (21) is set in the sliding hole (20). A placement groove (22) is opened on the surface of the moving block (21). A damping block (23) is set in the placement groove (22). A measuring plate (24) is set at one end of the moving block (21). The moving block (21) can be displaced in the sliding hole (20).

2. The crankshaft machining surface defect detection device according to claim 1, characterized in that: One end of the rotating rod (7) is fitted with a rotating wheel (25), and the drive motor (9) is fixedly connected inside the frame (2). The transmission end of the drive motor (9) is fitted with a second rotating wheel (26), and a traction belt (27) is fitted inside the second rotating wheel (26). The second rotating wheel (26) is driven by the traction belt (27) and the rotating wheel (25).

3. The crankshaft machining surface defect detection device according to claim 1, characterized in that: The frame (2) is provided with a power supply module (28) on its side. The power supply module (28) can supply power to the drive motor (9), the first motor (15) and the display module (13). The display module (13) is fixedly connected to the surface of the frame (2). The display module (13) is electrically connected to the detection device (18). The display module (13) is provided with a storage module (29).

4. The crankshaft machining surface defect detection device according to claim 1, characterized in that: One end of the motor base (14) is fixedly connected to the side of the frame (2), the first motor (15) is fixedly connected to the surface of the motor base (14), the transmission end of the first motor (15) is fitted with a transmission wheel (30), and the base plate (10) is fixedly connected to the surface of the frame (2).

5. The crankshaft machining surface defect detection device according to claim 4, characterized in that: The bottom of the base plate (10) is provided with a storage groove (31). One end of the lifting screw (12) is inserted into the storage groove (31). One end of the lifting screw (12) is fitted with a driven wheel (32). The surfaces of the transmission wheel (30) and the driven wheel (32) are fitted with a transmission belt (33). The transmission wheel (30) and the driven wheel (32) are belt driven by the transmission belt (33). The surface of the base plate (10) is provided with a guide rod (34).

6. The crankshaft machining surface defect detection device according to claim 1, characterized in that: The lifting screw (12) is provided with a positioning frame (35) at one end. The end face of the lifting screw (12) is provided with an installation groove (36). A fixing rod (37) is inserted into the installation groove (36). A limiting plate (38) is provided on the side of the fixing rod (37). A second groove (39) is provided on the side of the limiting plate (38). A limiting rod (40) is provided at one end of the second groove (39). A second spring (41) and a limiting block (42) are sleeved on the surface of the limiting rod (40). The limiting block (42) can slide on the limiting rod (40). One end of the second spring (41) is fixedly connected to the side of the limiting block (42). The other end of the second spring (41) is fixedly connected to the end face of the second groove (39). The limiting block (42) can be inserted into the positioning frame (35).

7. The crankshaft machining surface defect detection device according to claim 1, characterized in that: The lifting plate (16) is provided with a guide block (43) on its side. The guide block (43) has a hole on its surface, and the guide rod (34) is inserted into the hole on the surface of the guide block (43).

8. A detection system, characterized in that: The crankshaft machining surface defect detection device includes any one of claims 1-7.

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