3D rotating table on bed type magnetic particle detector

Abstract

The utility model belongs to the technical field of detection machines, and discloses a 3D rotary table on a bed type magnetic particle detection machine, which comprises a support table, a power motor I is fixedly connected to the lower inner wall of the support table, a worm is fixedly connected to the output end of the power motor I, the outer surface of the worm is meshed with a worm gear, and the worm gear is meshed with the support table. The inner surface of the worm gear is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is rotatably connected with a fixing table, the top end of the rotating shaft penetrates through the fixing table and is fixedly connected with a lead screw, the outer surface of the lead screw is sleeved with a lifting rod in a threaded mode, the outer surface of the lifting rod is slidably sleeved with a limiting frame, and the limiting frame is fixedly connected with the fixing table. According to the utility model, through the arrangement of the power motor I and the rotating mechanism, the position and the angle of the detection table can be flexibly adjusted, multi-angle detection can be comprehensively and accurately carried out on a workpiece, detection blind areas are reduced, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This utility model belongs to the field of testing machine technology, specifically a 3D rotary table on a bed-type magnetic particle testing machine. Background Technology

[0002] Bed-type magnetic particle inspection machines are important equipment in the field of industrial non-destructive testing, mainly used to detect surface and near-surface defects in ferromagnetic materials, such as cracks, pores, and inclusions. Their working principle is based on the aggregation phenomenon of magnetic particles at defects. When the workpiece being inspected is magnetized, if defects exist on or near the surface, the magnetic field lines will be distorted, and some magnetic field lines will leak into the air, forming a leakage magnetic field. Under the influence of this leakage magnetic field, the magnetic particles will be attracted to the defects, thus revealing the location, shape, and size of the defects. Due to their high detection sensitivity, relatively simple operation, and intuitive test results, bed-type magnetic particle inspection machines are widely used in many industries such as aerospace, automotive manufacturing, and machining.

[0003] Meanwhile, the patent specification with publication number CN115901930A discloses a multi-station magnetic particle flaw detector, "including an operating table, with legs fixedly connected to the four corners of the lower surface of the operating table, door panels on the left and right sides of the front of the operating table, a control console fixedly installed on the left side of the upper surface of the operating table, a warning light in the middle of the upper surface of the control console, and a moving mechanism on the right side of the upper surface of the operating table. This multi-station magnetic particle flaw detector utilizes a rectangular groove on the right side of the upper surface of the operating table, which fits into the right side of the upper surface of the operating table. Two sliding rods correspond to each other, with their sides vertically connected between the two sides inside the rectangular groove. The fixed platform moves horizontally above the sliding rods via a sliding sleeve at the bottom, and the fixed platform can also move elastically via a tension spring on the left side, providing a certain degree of buffering protection during the movement of the fixed platform, thereby improving the stability of the device."

[0004] In the use of existing bed-type magnetic particle inspection machines, most 3D rotary tables lack lifting functions, making it difficult to comprehensively and accurately inspect workpieces from multiple angles. Blind spots exist in the inspection, affecting the accuracy of the inspection results. Secondly, the fixing of the object to be inspected is not firm or convenient enough. Existing fixing devices are difficult to adapt to objects of different shapes and sizes, and the fixing process is cumbersome, reducing inspection efficiency.

[0005] Therefore, a 3D rotary table for a bed-type magnetic particle inspection machine is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a 3D rotary table for a bed-type magnetic particle testing machine, which has the advantages of effectively reducing the detection blind zone, greatly improving the accuracy of the detection results, simplifying the fixed process, and significantly improving the detection efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a 3D rotary table for a bed-type magnetic particle testing machine, comprising a support platform, a power motor fixedly connected to the lower inner wall of the support platform, a worm gear fixedly connected to the output end of the power motor, a worm wheel meshing with the outer surface of the worm gear, a rotating shaft fixedly connected to the inner surface of the worm wheel, a fixed platform rotatably connected to the outer surface of the rotating shaft, a lead screw fixedly connected to the top end of the rotating shaft through the fixed platform, a lifting rod threaded onto the outer surface of the lead screw, a limit frame slidably sleeved onto the outer surface of the lifting rod, and the limit frame fixedly connected to the fixed platform. A rotating mechanism is rotatably connected to the outer surface of the fixed platform. The rotating mechanism includes a second power motor fixedly connected to the support platform. A gear is fixedly connected to the output end of the second power motor. A rotating plate is rotatably connected to the outer surface of the fixed platform. The outer surface of the rotating plate is engraved with multiple tooth grooves arranged in a circular array. The gear meshes with the rotating plate through the tooth grooves. Two outer rods are fixedly connected to the top of the rotating plate. Inner rods are slidably sleeved on the inner surfaces of the two outer rods. A detection platform is fixedly connected to the top of the two inner rods. The detection platform is rotatably connected to the lifting rod. A fixing component is provided at the top of the detection platform.

[0008] Preferably, four sliding rods are fixedly connected to the bottom end of the rotating plate, and the bottom ends of the four sliding rods are all hemispherical. The top end of the support platform is provided with an annular groove that cooperates with the four sliding rods.

[0009] Preferably, a limit plate is fixedly sleeved on the outer surface of the lifting rod.

[0010] Preferably, the fixing component includes four rectangular slots formed at the top of the testing platform. The four rectangular slots are arranged in a circular array. The inner surfaces of the four rectangular slots are fixedly connected to fixing rods. The outer surfaces of the four fixing rods are slidably connected to clamps. The four clamps are slidably connected to the four rectangular slots respectively. The outer surfaces of the four fixing rods are wound with springs.

[0011] Preferably, one end of each of the four springs is fixedly connected to one end of the clamping plate, and the other end of each of the four springs is fixedly connected to one side of the inner wall of each of the four rectangular grooves.

[0012] Preferably, each of the four clamping plates has a soft pad and a support block fixedly connected to one end, and one end of each of the four support blocks is inclined.

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

[0014] 1. This utility model, by setting up a power motor and a rotating mechanism, allows the lifting rod, which is threadedly connected to the lead screw driven by the power motor, to move linearly up and down along the lead screw. Under the action of the rotating plate driven by the second power motor, the position and angle of the inspection table can be flexibly adjusted, enabling comprehensive and accurate multi-angle inspection of the workpiece, reducing blind spots and improving the accuracy of the inspection results.

[0015] 2. By setting a fixing component, the clamp can slide flexibly on the fixing rod when facing objects of different shapes and sizes to be tested. It automatically adapts to the contour of the object by relying on the elastic force of the spring and fixes it firmly. The inclined support block at one end of the clamp facilitates the placement and removal of objects, which simplifies the fixing process and significantly improves the testing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention, showing the removal of the detection platform.

[0019] Figure 4 This is a schematic diagram of the limiting frame and fixing platform structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the lifting rod of this utility model;

[0021] Figure 6 This is a schematic diagram of the fixing component structure of this utility model.

[0022] In the diagram: 1. Support platform;

[0023] 2. Rotating mechanism; 21. Power motor II; 22. Gear; 23. Gear groove; 24. Lifting rod; 241. Lead screw; 242. Rotating shaft; 243. Worm gear; 244. Worm wheel; 245. Limiting plate; 25. Limiting frame; 26. Fixed platform; 27. Outer rod; 28. Inner rod; 29. ​​Slide rod; 30. Annular groove; 31. Rotating plate;

[0024] 3. Testing station;

[0025] 4. Fixing components; 41. Support block; 42. Soft pad; 43. Clamping plate; 44. Spring; 45. Rectangular groove; 46. Fixing rod; 5. Power motor one. Detailed Implementation

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

[0027] like Figures 1 to 6 As shown, this utility model provides a 3D rotary table for a bed-type magnetic particle testing machine, including a support platform 1. A power motor 5 is fixedly connected to the lower inner wall of the support platform 1. A worm gear 243 is fixedly connected to the output end of the power motor 5. A worm wheel 244 is meshed with the outer surface of the worm gear 243. A rotating shaft 242 is fixedly connected to the inner surface of the worm wheel 244. A fixed platform 26 is rotatably connected to the outer surface of the rotating shaft 242. The top end of the rotating shaft 242 passes through the fixed platform 26 and is fixedly connected to a lead screw 241. A lifting rod 24 is threaded onto the outer surface of the lead screw 241. A limit frame 25 is slidably sleeved onto the outer surface of the lifting rod 24. The limit frame 25 is fixedly connected to the fixed platform 26. The power motor 5 drives the worm gear 243 to rotate. Under the meshing action of the worm gear 243 and the worm wheel 244, the rotating shaft 242 drives the lead screw 241 to rotate, thereby realizing the lifting of the lifting rod 24. A rotating mechanism 2 is rotatably connected to the outer surface of the fixed platform 26.

[0028] The rotating mechanism 2 includes a second power motor 21 fixedly connected to the support platform 1. A gear 22 is fixedly connected to the output end of the second power motor 21. A rotating plate 31 is rotatably connected to the outer surface of the fixed platform 26. The outer surface of the rotating plate 31 is engraved with multiple circularly arrayed tooth grooves 23. The gear 22 meshes with the rotating plate 31 through the tooth grooves 23. Two outer rods 27 are fixedly connected to the top of the rotating plate 31. Inner rods 28 are slidably fitted onto the inner surfaces of the two outer rods 27. A detection platform 3 is fixedly connected to the top of the two inner rods 28. The detection platform 3 is rotatably connected to the lifting rod 24. This allows the detection platform 3 to perform both rotation and lifting / lowering movements in conjunction with the lifting rod 24. During lifting / lowering, the inner rods 28 can slide freely within the outer rods 27, ensuring that the detection platform 3 can rotate smoothly at different heights. This flexible combination of lifting and rotation allows the magnetic particle inspection machine to adapt to the inspection needs of workpieces of different sizes and shapes, further expanding the applicability of the equipment and improving its versatility and practicality. A fixing component 4 is provided at the top of the detection platform 3.

[0029] Specifically, four sliding rods 29 are fixedly connected to the bottom of the rotating plate 31. The bottom of each of the four sliding rods 29 is hemispherical. The top of the support platform 1 is provided with an annular groove 30 that works with the four sliding rods 29. During the rotation of the rotating plate 31, the sliding rods 29 slide in the annular groove 30, which plays a supporting and guiding role, making the rotation of the rotating plate 31 more stable and smooth, reducing shaking and deviation, and further improving the stability and accuracy of the detection.

[0030] like Figures 1 to 6 As shown, a limit plate 245 is fixedly sleeved on the outer surface of the lifting rod 24, which ensures the safety and reliability of the lifting mechanism and avoids equipment damage or detection errors caused by the lifting rod 24 falling off.

[0031] Furthermore, the fixing component 4 includes four rectangular slots 45 formed at the top of the detection table 3. The four rectangular slots 45 are arranged in a circular array. The inner surface of each of the four rectangular slots 45 is fixedly connected to a fixing rod 46. The outer surface of each of the four fixing rods 46 is slidably connected to a clamping plate 43. The four clamping plates 43 are slidably connected to the four rectangular slots 45 respectively. The outer surface of each of the four fixing rods 46 is wound with a spring 44. Through the elastic action of the spring 44, the clamping plate 43 can automatically adjust its position according to the shape and size of the object to be detected, thereby achieving a firm fixation of objects of different shapes and sizes. This improves the versatility and practicality of the device, simplifies the fixing process, and improves the detection efficiency.

[0032] like Figures 1 to 6 As shown, one end of each of the four springs 44 is fixedly connected to one end of the clamping plate 43, and the other end of each of the four springs 44 is fixedly connected to one side inner wall of each of the four rectangular grooves 45. This ensures that the springs 44 can stably provide elastic force to the clamping plate 43, so that the clamping plate 43 can maintain a stable clamping force when fixing objects, further enhancing the firmness of the fixation.

[0033] It is worth noting that each of the four clamps 43 has a soft pad 42 and a support block 41 fixedly connected to one end. One end of each of the four support blocks 41 is inclined. The soft pad 42 can increase the friction between the clamps 43 and the object surface, while avoiding damage to the object surface. The inclined support block 41 facilitates the insertion and removal of the object to be tested, making the fixing operation more convenient.

[0034] Among them, the first power motor 5 and the second power motor 21 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motors in this utility model is common knowledge in the field, and their working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motors will not be explained in detail.

[0035] Working principle and process: When it is necessary to adjust the height of the testing table 3, the power motor 5 is started. The output shaft of the power motor 5 drives the worm gear 243 to rotate. The rotation of the worm gear 243 will drive the worm wheel 244 to rotate, thereby causing the rotating shaft 242 to rotate synchronously. The lead screw 241 at the top of the rotating shaft 242 also rotates. Under the guidance of the limit frame 25, the lifting rod 24 will move up and down in a straight line along the lead screw 241, thereby driving the testing table 3 to adjust its height.

[0036] When the testing platform 3 needs to be rotated, the second power motor 21 is started. The output shaft of the second power motor 21 drives the gear 22 to rotate. The rotation of the gear 22 will drive the rotating plate 31 to rotate around the fixed platform 26. The top of the rotating plate 31 is connected to the testing platform 3 through the outer rod 27 and the inner rod 28. Therefore, the rotation of the rotating plate 31 will drive the testing platform 3 to rotate. During the rotation of the rotating plate 31, the four sliding rods 29 at its bottom end slide in the annular groove 30 at the top of the support platform 1, which plays a supporting and guiding role, ensuring the stability of the rotation of the rotating plate 31.

[0037] The object to be tested is placed on the testing table 3. The object presses against the clamp 43, causing the clamp 43 to slide on the fixing rod 46 and compress the spring 44. The elastic force generated by the spring 44 makes the clamp 43 tightly clamp the object, thus fixing the object. The soft pad 42 on the clamp 43 increases the friction with the surface of the object while avoiding damage to the surface of the object. The inclined support block 41 facilitates the insertion and removal of the object. After the test is completed, the object is removed, the spring 44 returns to its original state, and the clamp 43 returns to its initial position, ready for the next fixation.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 3D rotary table on a bed-type magnetic particle detector, comprising a support table (1), characterized in that: A power motor (5) is fixedly connected to the lower inner wall of the support platform (1). A worm gear (243) is fixedly connected to the output end of the power motor (5). A worm wheel (244) is meshed with the outer surface of the worm gear (243). A rotating shaft (242) is fixedly connected to the inner surface of the worm wheel (244). A fixed platform (26) is rotatably connected to the outer surface of the rotating shaft (242). A lead screw (241) is fixedly connected to the top end of the rotating shaft (242) through the fixed platform (26). A lifting rod (24) is threaded onto the outer surface of the lead screw (241). A limit frame (25) is slidably sleeved onto the outer surface of the lifting rod (24). The limit frame (25) is fixedly connected to the fixed platform (26). A rotating mechanism (2) is rotatably connected to the outer surface of the fixed platform (26). The rotating mechanism (2) includes a second power motor (21) fixedly connected to the support platform (1). The output end of the second power motor (21) is fixedly connected to a gear (22). The outer surface of the fixed platform (26) is rotatably connected to a rotating plate (31). The outer surface of the rotating plate (31) is engraved with a plurality of tooth grooves (23) arranged in a ring. The gear (22) meshes with the rotating plate (31) through the tooth grooves (23). The top of the rotating plate (31) is fixedly connected to two outer rods (27). The inner surfaces of the two outer rods (27) are slidably fitted with inner rods (28). The tops of the two inner rods (28) are fixedly connected to a detection platform (3). The detection platform (3) is rotatably connected to the lifting rod (24). The top of the detection platform (3) is provided with a fixing component (4).

2. The 3D rotary table of claim 1, wherein: The bottom end of the rotating plate (31) is fixedly connected to four sliding rods (29), and the bottom ends of the four sliding rods (29) are all hemispherical. The top end of the support platform (1) is provided with an annular groove (30) for use with the four sliding rods (29).

3. A 3D rotary table for use in a bed-type magnetic particle inspection machine according to claim 1, characterized in that: A limiting plate (245) is fixedly sleeved on the outer surface of the lifting rod (24).

4. The 3D rotary table of claim 1, wherein: The fixing component (4) includes four rectangular slots (45) formed at the top of the testing table (3). The four rectangular slots (45) are arranged in a circular array. The inner surfaces of the four rectangular slots (45) are fixedly connected to fixing rods (46). The outer surfaces of the four fixing rods (46) are slidably connected to clamps (43). The four clamps (43) are slidably connected to the four rectangular slots (45) respectively. The outer surfaces of the four fixing rods (46) are all wound with springs (44).

5. A 3D rotary table for use in a bed-type magnetic particle inspection machine according to claim 4, characterized in that: One end of each of the four springs (44) is fixedly connected to one end of the clamp (43), and the other end of each of the four springs (44) is fixedly connected to one side of the inner wall of each of the four rectangular grooves (45).

6. A 3D rotary table for use in a bed-type magnetic particle inspection machine according to claim 4, characterized in that: Each of the four clamping plates (43) has a soft pad (42) and a support block (41) fixedly connected to one end, and one end of each of the four support blocks (41) is inclined.

Images