A multi-station magnetic particle flaw detector rotary positioning mechanism

Abstract

The utility model discloses a kind of multi-station detection is used magnetic particle flaw detector rotary positioning mechanism, it is related to magnetic particle flaw detection equipment technical field, including bottom plate and fixed support, the bottom middle end of bottom plate is equipped with servo motor one, and the output end of servo motor one is connected with driving shaft one, the top of driving shaft one is provided with rotating platform, the top edge of rotating platform is equipped with servo motor two, and the output end of servo motor two is connected with driving shaft two. The magnetic particle flaw detector rotary positioning mechanism for the multi-station detection, after workpiece is placed between the two clamping plates in fixed support, controller starts servo motor three and drives screw rod to rotate, make the screw rod nut outside screw rod drive L type support, transmission shaft three carry out transverse movement, cooperate the clamping plate clamping workpiece at the end of transmission shaft two, pressure sensor detects clamping force in real time and feedback to controller, ensure that clamping force adapts workpiece, avoid over-clamping damage or slip with loose clamping, realize workpiece accurate positioning.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic particle inspection equipment, specifically a rotary positioning mechanism for a multi-station magnetic particle inspection machine. Background Technology

[0002] Magnetic particle inspection machines are key equipment for detecting surface and near-surface defects (such as cracks and inclusions) in metal workpieces. They are widely used in machinery manufacturing, rail transportation, aerospace, and other fields, and require precise magnetization and defect display to ensure the safety performance of the workpiece. In the defect detection of metal workpieces, it is necessary to achieve full surface coverage by rotating the workpiece at multiple angles to avoid missing potential hazards such as cracks and inclusions due to blind spots in the inspection.

[0003] Traditional magnetic particle inspection machines are mostly single-station designs, with workpiece clamping, magnetization, liquid spraying, observation, and unloading processes performed sequentially. The inspection cycle for a single workpiece can be as long as 3-5 minutes, which is difficult to meet the needs of mass production.

[0004] Therefore, in view of this, we studied and improved the existing structure and its shortcomings, and proposed a rotary positioning mechanism for a multi-station magnetic particle flaw detector. Utility Model Content

[0005] The purpose of this invention is to provide a rotary positioning mechanism for a multi-station magnetic particle flaw detector, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary positioning mechanism for a multi-station magnetic particle flaw detector, comprising a base plate and a fixed support. A servo motor is installed at the bottom center of the base plate, and the output end of the servo motor is connected to a drive shaft. A rotating platform is provided on the top of the drive shaft. A servo motor is installed at the top edge of the rotating platform, and the output end of the servo motor is connected to a drive shaft. A drive gear is sleeved on the outside of the drive shaft, and a gear ring is connected to the outside of the drive gear. A driven gear is connected to the inside of the gear ring, and a transmission shaft passes through the middle of the driven gear. A bevel gear is fixed below the outside of the transmission shaft, and a bevel gear is connected to the outside of the bevel gear. A transmission shaft passes through the middle of the bevel gear. The fixed support is located on the top of the rotating platform, and bearings are provided at the through holes on the top and inner sides of the fixed support. Support seats are installed at the middle of the top front end and the middle of the top rear end of the rotating platform.

[0007] Furthermore, the drive shaft and the transmission shaft are parallel to each other, and the transmission shaft is disposed in the bearing at the top through hole of the fixed support.

[0008] Furthermore, the driven gears are evenly distributed around the inner side of the gear ring, and there are six driven gears, six transmission shafts, and six fixed supports.

[0009] Furthermore, a servo motor is installed inside the fixed support, and a lead screw is connected to the output end of the servo motor.

[0010] Furthermore, the lead screw is externally connected to a lead screw nut, and the lead screw is externally connected to an L-shaped bracket.

[0011] Furthermore, a third drive shaft is inserted through the bearing at the through hole on the left side of the L-shaped bracket, and clamping plates are fixed to the ends of the second and third drive shafts. A pressure sensor is installed on the surface of the clamping plate at the end of the third drive shaft.

[0012] Furthermore, the first and second transmission shafts are perpendicular to each other, and the second and third transmission shafts are coaxially arranged, and two clamping plates are provided.

[0013] Furthermore, the L-shaped bracket passes through the through groove inside the fixed support, the second transmission shaft passes through the bearing in the through hole inside the fixed support, the first servo motor is electrically connected to a controller, and the controller is electrically connected to the second servo motor, the third servo motor, and the pressure sensor.

[0014] This utility model provides a rotary positioning mechanism for a multi-station magnetic particle flaw detector, which has the following advantages:

[0015] 1. This utility model uses six sets of fixed supports in conjunction with a rotating platform to achieve parallel processing at multiple workstations, replacing the traditional single-station serial process. This effectively shortens the inspection cycle of a single workpiece, meeting the requirements of batch production cycle time. Furthermore, the servo motor drives the drive shaft and the active gear to rotate. The active gear meshes with the gear ring, driving the driven gear to rotate. The driven gear drives the bevel gear one to mesh with the bevel gear two, driving the workpieces at the six workstations to rotate synchronously. With the workstation switching of the rotating platform, it can achieve full surface coverage of the workpiece from multiple angles, thereby reducing the defect omission rate and improving the detection rate of defects such as cracks and inclusions.

[0016] 2. After the workpiece is placed between the two clamping plates in the fixed support, the controller starts the servo motor three to drive the lead screw to rotate, so that the lead screw nut outside the lead screw drives the L-shaped bracket and the transmission shaft three to move laterally. The clamping plates at the two ends of the transmission shaft clamp the workpiece. The pressure sensor detects the clamping force in real time and feeds it back to the controller to ensure that the clamping force is suitable for the workpiece, avoids over-clamping damage or loosening and slippage, and achieves accurate positioning of the workpiece. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the rotary positioning mechanism of a multi-station magnetic particle flaw detector according to the present invention;

[0018] Figure 2This is a top view schematic diagram of the rotary positioning mechanism of a multi-station magnetic particle flaw detector according to the present invention;

[0019] Figure 3 This is a cross-sectional view of the fixed support structure of the rotating positioning mechanism of a multi-station magnetic particle flaw detector according to this utility model.

[0020] In the diagram: 1. Base plate; 2. Servo motor 1; 3. Drive shaft 1; 4. Rotating platform; 5. Servo motor 2; 6. Drive shaft 2; 7. Driving gear; 8. Gear ring; 9. Driven gear; 10. Transmission shaft 1; 11. Bevel gear 1; 12. Bevel gear 2; 13. Transmission shaft 2; 14. Fixed support; 15. Servo motor 3; 16. Lead screw; 17. Lead screw nut; 18. L-shaped bracket; 19. Transmission shaft 3; 20. Clamping plate; 21. Pressure sensor; 22. Bearing; 23. Support base. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 3 As shown, a rotary positioning mechanism for a multi-station magnetic particle flaw detector includes a base plate 1 and a fixed support 14. A servo motor 2 is mounted at the bottom center of the base plate 1, and the output end of the servo motor 2 is connected to a drive shaft 3. A rotating platform 4 is mounted on the top of the drive shaft 3. A servo motor 5 is mounted at the top edge of the rotating platform 4, and the output end of the servo motor 5 is connected to a drive shaft 6. A drive gear 7 is sleeved on the outside of the drive shaft 6, and a gear ring 8 is connected to the outside of the drive gear 7. A driven gear 9 is connected to the inside of the gear ring 8, and a transmission shaft 10 passes through the middle of the driven gear 9. The lower part of the transmission shaft 10... A bevel gear 11 is fixedly mounted on the rotating platform 4, and a bevel gear 22 is connected to the outside of the bevel gear 11. A transmission shaft 23 passes through the middle of the bevel gear 22. A fixed support 14 is mounted on the top of the rotating platform 4, and bearings 22 are provided at the through holes on the top and inner side of the fixed support 14. Support seats 23 are installed at the middle of the front end and the middle of the rear end of the top of the rotating platform 4. The drive shaft 13 and the transmission shaft 10 are parallel to each other. The transmission shaft 10 is located in the bearing 22 at the through hole on the top of the fixed support 14. The driven gears 9 are evenly distributed around the inner side of the gear ring 8, and there are six driven gears 9, six transmission shafts 10, and six fixed supports 14.

[0023] The specific operation is as follows: the six sets of fixed supports 14 cooperate with the rotating platform 4 to realize multi-station parallel processing, replacing the traditional single-station serial process, effectively shortening the inspection cycle of a single workpiece, meeting the batch production cycle requirements, and the servo motor 2 5 drives the drive shaft 2 6 and the drive gear 7 to rotate. The drive gear 7 meshes with the gear ring 8 to drive the driven gear 9 to rotate. The driven gear 9 drives the bevel gear 1 11 to mesh with the bevel gear 2 12, driving the workpieces of the six stations to rotate synchronously. With the station switching of the rotating platform 4, it can realize multi-angle full surface coverage of the workpiece, thereby reducing the defect omission rate and improving the detection rate of defects such as cracks and inclusions.

[0024] like Figure 3 As shown, a servo motor 15 is installed inside the fixed support 14, and a lead screw 16 is connected to the output end of the servo motor 15. A lead screw nut 17 is connected to the outside of the lead screw 16, and an L-shaped bracket 18 is connected to the outside of the lead screw 16. A transmission shaft 19 is inserted through the bearing 22 at the through hole on the left side of the L-shaped bracket 18. A clamping plate 20 is fixed to the ends of the transmission shaft 13 and the transmission shaft 19. A pressure sensor 21 is installed on the surface of the clamping plate 20 at the end of the transmission shaft 19. The transmission shaft 10 and the transmission shaft 23 are perpendicular to each other and are coaxially arranged. There are two clamping plates 20. The L-shaped bracket 18 passes through the through groove inside the fixed support 14. The transmission shaft 23 passes through the bearing 22 at the through hole inside the fixed support 14. The servo motor 12 is electrically connected to a controller, and the controller is electrically connected to the servo motor 25, the servo motor 15, and the pressure sensor 21.

[0025] The specific operation is as follows: After the workpiece is placed between the two clamping plates 20 in the fixed support 14, the controller starts the servo motor 15 to drive the lead screw 16 to rotate, so that the lead screw nut 17 outside the lead screw 16 drives the L-shaped bracket 18 and the transmission shaft 19 to move laterally. Together with the clamping plate 20 at the end of the transmission shaft 13, the workpiece is clamped. The pressure sensor 21 detects the clamping force in real time and feeds it back to the controller to ensure that the clamping force is suitable for the workpiece, avoid over-clamping damage or loosening and slippage, and achieve precise positioning of the workpiece.

[0026] In summary, the rotary positioning mechanism of this multi-station magnetic particle flaw detector works by first placing the workpiece between one of the clamping plates 20. The controller starts the servo motor 15 to drive the lead screw 16 to rotate. The lead screw nut 17 drives the L-shaped bracket 18 to move along the inner through groove of the fixed support 14, which in turn drives the transmission shaft 19 and the clamping plates 20 to move towards the workpiece. The pressure sensor 21 detects the clamping force in real time. When the clamping force reaches the preset value, the pressure sensor 21 sends a signal to the controller, and the servo motor 15 stops running, ensuring that the workpiece is clamped securely and avoiding over-clamping damage.

[0027] After the workpieces at the six stations are clamped in sequence, the controller starts servo motor 2, whose output drive shaft 3 drives the rotating platform 4 to rotate at a constant speed, completing the automatic switching of the workpiece between the stations and shortening the single workpiece inspection cycle from 3-5 minutes to 1-1.5 minutes. At the same time, the controller starts servo motor 5, whose output drive shaft 6 drives the drive gear 7 to rotate. The drive gear 7 meshes with the gear ring 8, driving the six driven gears 9 distributed along the inner side of the gear ring 8 to rotate synchronously. The driven gears 9 drive the transmission shaft 10 to rotate, causing the bottom bevel gear 11 to mesh with the bevel gear 2 12, driving the transmission shaft 2 13 to rotate. The transmission shaft 2 13 and the transmission shaft 3 19 are coaxially set, thereby driving the two clamping plates 20 and the clamped workpiece to rotate around the axis, realizing the circumferential full surface coverage inspection of the workpiece.

[0028] After the inspection is completed, the workpiece moves to the unloading station with the rotating platform 4. The servo motor 315 reverses to drive the clamping plate 20 to release, completing the unloading of the workpiece. At the same time, the new workpiece is clamped at the clamping station to realize batch continuous inspection.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A rotary positioning mechanism for a multi-station magnetic particle flaw detector, comprising a base plate (1) and a fixed support (14), characterized in that, A servo motor (2) is installed at the bottom center of the base plate (1), and the output end of the servo motor (2) is connected to a drive shaft (3). A rotating platform (4) is provided on the top of the drive shaft (3). A servo motor (5) is installed at the top edge of the rotating platform (4), and the output end of the servo motor (5) is connected to a drive shaft (6). A drive gear (7) is sleeved on the outside of the drive shaft (6), and a gear ring (8) is connected to the outside of the drive gear (7). A driven gear (9) is connected to the inside of the gear ring (8). A drive shaft (10) passes through the middle of the driven gear (9), a bevel gear (11) is fixed to the lower outside of the drive shaft (10), and a bevel gear (12) is connected to the outside of the bevel gear (11). A drive shaft (13) passes through the middle of the bevel gear (12). The fixed support (14) is set on the top of the rotating platform (4), and bearings (22) are set at the through holes on the top and inner side of the fixed support (14). Support seats (23) are installed at the middle of the front end and the middle of the rear end of the top of the rotating platform (4).

2. The rotary positioning mechanism for a multi-station magnetic particle flaw detector according to claim 1, characterized in that, The drive shaft (3) and transmission shaft (10) are parallel to each other, and the transmission shaft (10) is located in the bearing (22) at the top through hole of the fixed support (14).

3. The rotary positioning mechanism for a multi-station magnetic particle flaw detector according to claim 1, characterized in that, The driven gears (9) are evenly distributed around the inner side of the gear ring (8), and there are six driven gears (9), six transmission shafts (10), and six fixed supports (14).

4. The rotary positioning mechanism for a multi-station magnetic particle flaw detector according to claim 1, characterized in that, The fixed support (14) is equipped with a servo motor three (15), and the output end of the servo motor three (15) is connected to a lead screw (16).

5. The rotary positioning mechanism for a multi-station magnetic particle flaw detector according to claim 4, characterized in that, The lead screw (16) is externally connected to a lead screw nut (17), and the lead screw (16) is externally connected to an L-shaped bracket (18).

6. The rotary positioning mechanism for a multi-station magnetic particle flaw detector according to claim 5, characterized in that, The L-shaped bracket (18) has a transmission shaft three (19) passing through the bearing (22) at the left through hole. The ends of the transmission shaft two (13) and the transmission shaft three (19) are fixed with clamping plates (20). A pressure sensor (21) is installed on the surface of the clamping plate (20) at the end of the transmission shaft three (19).

7. The rotary positioning mechanism for a multi-station magnetic particle flaw detector according to claim 6, characterized in that, The first transmission shaft (10) and the second transmission shaft (13) are perpendicular to each other, and the second transmission shaft (13) and the third transmission shaft (19) are coaxially arranged. The clamping plate (20) is provided in two pieces.

8. The rotary positioning mechanism for a multi-station magnetic particle flaw detector according to claim 6, characterized in that, The L-shaped bracket (18) passes through the through groove inside the fixed support (14), the transmission shaft (13) passes through the bearing in the through hole inside the fixed support (14), the servo motor (2) is electrically connected to the controller, and the controller is electrically connected to the servo motor (5), the servo motor (15), and the pressure sensor (21).

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