Polishing machine suitable for defect detection of various rotary workpieces

Abstract

The application provides a grinding machine suitable for defect detection of various rotary workpieces, which comprises a defect detection assembly and a grinding assembly, wherein the defect detection assembly is composed of a first conveyor, a first turnover assembly, a second conveyor, a first rotating assembly and a third conveyor, and the grinding assembly is composed of a protection assembly, a conveying assembly, a second rotating assembly and a second turnover assembly. The application can realize full-process automatic processing from detection and identification to grinding, can realize comprehensive and rapid detection and classification of surface defects of rotary castings of different sizes, can distinguish between defects that need to be processed and casting features that are allowed to exist, can avoid misprocessing, can generate efficient and non-interfering grinding paths, and can automatically compensate for shape errors of individual castings. Through modular clamp design, rapid workpiece identification, automatic program calling and trajectory compensation, rapid production change of rotary castings of different specifications is realized, and the quality, efficiency and digitalization and intelligentization level of production are significantly improved.

Description

Technical Field

[0001] This invention relates to a grinding machine suitable for defect detection of various types of rotating workpieces, belonging to the field of rotating workpiece processing technology. Background Technology

[0002] Rotary castings are key basic components widely used in the equipment manufacturing industry. While the casting process gives them advantages in complex structures, it also inevitably brings a series of unique surface quality problems, including: inherent casting defects such as porosity, sand holes, shrinkage cavities, slag inclusions, cold shuts, sand adhesion, and excess material (burrs); process defects such as gating and riser residues, parting line protrusions, seams, and deformation; and post-processing defects such as corrosion and damage from handling.

[0003] Currently, the post-processing of these castings typically employs the traditional method of manual visual inspection, marking defects, hand-held tool grinding, and manual inspection. This method suffers from problems such as long grinding times, inconsistent grinding dimensions, and high safety risks. Furthermore, the harsh grinding environment and high dust levels pose significant health risks to operators, leading to difficulties in recruiting workers. In addition, some companies have adopted automated grinding methods for these products, but due to the wide variety of products, the program needs to be readjusted after product changes, resulting in a large amount of labor costs.

[0004] As the manufacturing industry transforms towards high quality, high efficiency, and digitalization, existing technologies face severe challenges: Quality relies on human experience: Defect identification and repair quality are greatly affected by the operator's skills, experience, and condition, resulting in poor consistency; Production efficiency is low: Manual grinding is labor-intensive and slow, becoming a bottleneck process in mass production; Digitalization is low: Defect information and repair process data are difficult to collect and trace, hindering process optimization and quality analysis; Automation adaptability is poor: Existing automated grinding equipment is difficult to adapt to complex working conditions such as large individual differences in castings, random defect locations, and diverse types.

[0005] Therefore, there is an urgent need to develop an integrated intelligent system that can adapt to the characteristics of rotating castings and achieve highly adaptable, efficient, and consistent defect handling. Summary of the Invention

[0006] In order to solve the technical problem of the difficulty in quickly and accurately identifying and automatically grinding multi-faceted defects in workpieces, this invention provides a grinding machine suitable for defect detection of various types of rotating workpieces.

[0007] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0008] This invention provides a grinding machine suitable for defect detection of various types of rotating workpieces, including a defect detection assembly and a grinding assembly. The defect detection assembly consists of a first conveyor, a first tilting component, a second conveyor, a first rotating component, and a third conveyor. The grinding assembly consists of a protective component, a conveying component, a second rotating component, and a second tilting component. The grinding assembly is fixedly installed on one side of the defect detection assembly. The protective component and the second rotating component are arranged sequentially and located on one side of the defect detection assembly. The conveying component is disposed on the second conveyor, the second rotating component, and the third conveyor.

[0009] In this technical solution, a front inspection device is installed on one side of the first conveyor, a back inspection device is installed on one side of the second conveyor, and a side inspection device is fixedly installed on one side of the first rotating assembly.

[0010] In this technical solution, a correction assembly is fixedly installed on the first conveyor. The correction assembly includes a baffle and a screw sleeve. The baffle is rotatably connected to the side of the support frame. A long screw is threaded into the screw sleeve. One end of the long screw is rotatably connected to one end of the baffle through a universal joint.

[0011] In this technical solution, the first flipping component includes a fixed frame, which is a U-shaped structure and is located between the first conveyor and the second conveyor. A drive motor is fixedly installed on the outer wall of the fixed frame, and the output end of the drive motor is connected to the flipping mechanism.

[0012] In this technical solution, the flipping mechanism includes a fixed clamping plate and a movable clamping plate. The output end of the drive motor is fixedly connected to the fixed clamping plate, and the end of the fixed clamping plate is rotatably connected to the movable clamping plate.

[0013] In this technical solution, the protective component is composed of a U-shaped frame, and a grinding component is provided on one side of the protective component. The grinding component includes an adjustment component and a telescopic component.

[0014] In this technical solution, the conveying component includes a support and a slide. The support has a U-shaped structure, and both ends of the support are fixedly connected to the slide. A travel motor is fixedly installed on the top of the slide, and a gear is fixedly connected to the output end of the travel motor.

[0015] In this technical solution, the gear is located inside the groove opened at the bottom of the slide block, and a rack is also embedded in the groove. The rack is fixedly installed above the track, and the gear and the rack are meshed and connected. The track is respectively installed on the second conveyor, the first rotating component, the third conveyor and the second conveying component. A clamping mechanism is fixedly installed at the top of the support.

[0016] In this technical solution, the second rotating component includes a support frame, a three-jaw chuck is rotatably connected inside the support frame, a rotary motor is fixedly installed at the bottom of the support frame, and the output end of the rotary motor is fixedly connected to the three-jaw chuck.

[0017] In this technical solution, the second flipping component includes a vertical plate and a flip plate. The vertical plate is fixedly installed on the support frame of the second rotating component, the flip plate is rotatably connected to the top of the vertical plate, and the bottom of the flip plate is provided with a translation structure.

[0018] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0019] The positive and progressive effects of this invention are as follows:

[0020] The aforementioned grinding machine, applicable to defect detection of various types of rotating workpieces, provides an integrated and intelligent defect detection and grinding machine for rotating workpieces. It can automate the entire process from detection and identification to grinding, enabling comprehensive and rapid detection and classification of surface defects in rotating castings of different sizes. It can distinguish between defects requiring treatment and permissible casting features, avoiding mistreatment. It can generate efficient and interference-free grinding paths and automatically compensate for individual shape errors of castings. Through modular fixture design, rapid workpiece identification, automatic program recall, and trajectory compensation, it enables rapid production changeover for rotating castings of different specifications. It fundamentally changes the production mode of post-processing of rotating castings, realizing the transformation from "humans adapting to machines" to "machines adapting to workpieces," significantly improving the digitalization and intelligence level of quality, efficiency, and production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0023] Figure 3 This is a front view structural diagram of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal front view of the present invention.

[0025] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0026] Figure 6 This is a schematic diagram of the half-section structure of the present invention.

[0027] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point C.

[0028] Figure 8 This is a partial structural diagram of the support frame of the present invention.

[0029] Figure 9This is a partial structural diagram of the upright plate of the present invention.

[0030] Figure 10 This is a side view of the support structure of the present invention.

[0031] Figure 11 This is a schematic diagram of a partial internal structure of the support frame of the present invention.

[0032] Figure 12 This is a schematic diagram of the internal structure of the adjustment component and the telescopic component of the present invention.

[0033] Figure 13 This is a three-dimensional structural diagram of the long screw section of the present invention.

[0034] Figure 14 This is a partial three-dimensional structural diagram of the three-jaw chuck of the present invention.

[0035] Figure 15 This is a schematic diagram of the internal structure of the three-jaw chuck of the present invention.

[0036] Explanation of reference numerals in the attached figures

[0037] 10. Defect detection assembly; 11. First conveyor; 12. Front inspection device; 13. Correction assembly; 131. Baffle; 132. Screw sleeve; 133. Long screw; 134. Universal joint; 21. Fixing frame; 211. Drive motor; 212. Fixed clamping plate; 213. Stop block; 214. Moving clamping plate; 215. Electric push rod; 216. Moving part; 31. Second conveyor; 32. Reverse inspection device; 41. First rotating assembly; 42. Side inspection device; 51. Third conveyor;

[0038] 20. Grinding assembly; 61. Protective component; 62. Adjustment component; 621. Column; 622. First hydraulic cylinder; 623. Slider; 624. Square rod; 625. Swing motor; 626. Rotary seat; 63. Telescopic component; 631. Crossbeam; 632. Second hydraulic cylinder; 633. Telescopic rod; 634. Telescopic arm; 635. Grinding disc; 71. Support; 711. Slide; 712. Travel motor; 71 3. Slide groove; 714. Track; 715. Rack; 72. Lifting cylinder; 721. Connecting plate; 722. Clamping structure; 81. Support frame; 811. Rotary motor; 82. Three-jaw chuck; 821. Spiral disc; 822. Gripper; 91. Vertical plate; 911. Control motor; 912. Flip plate; 913. First cylinder; 914. Push plate; 915. Limit block; 916. Pressure plate; 917. Second cylinder. Detailed Implementation

[0039] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0040] like Figure 1-15 As shown, a grinding machine suitable for defect detection of various types of rotating workpieces includes a defect detection assembly 10 and a grinding assembly 20. The defect detection assembly 10 consists of a first conveyor 11, a first tilting component, a second conveyor 31, a first rotating component 41, and a third conveyor 51. The first conveyor 11, the first tilting component, the second conveyor 31, the first rotating component 41, and the third conveyor 51 are arranged sequentially to form a production line for defect detection of rotating workpieces. The first conveyor 11, the first tilting component, the second conveyor 31, the first rotating component 41, and the third conveyor 51 are fixedly connected in pairs.

[0041] The grinding assembly 20 consists of a protective component 61, a conveying component, a second rotating component, and a second tilting component. There are multiple third conveyors 51 and second rotating components. Multiple third conveyors 51 and second rotating components are fixedly installed in sequence. The third conveyors 51 and second rotating components are arranged alternately to form multiple grinding stations for grinding processing under different conditions. The workpiece can be conveyed to the corresponding second rotating component through the third conveyor 51. The grinding assembly 20 is fixedly installed on one side of the defect detection assembly 10. The protective component 61 and the second rotating component are arranged in sequence and located on one side of the defect detection assembly 10. The conveying component is set on the second conveyor 31, the second rotating component, and the third conveyor 51. When the conveying component moves, the conveying component is located inside the protective component 61 and above the second rotating component and the second tilting component.

[0042] A front inspection device 12 is installed on one side of the first conveyor 11, and a back inspection device 32 is installed on one side of the second conveyor 31. The front inspection device 12 and the back inspection device 32 have the same structure, both integrating multiple sensors such as vision and laser rangefinder, and connecting the multiple sensors to a processor for image processing.

[0043] A side inspection device 42 is fixedly installed on one side of the first rotating assembly 41, and the structure of the side inspection device 42 is the same as that of the front inspection device 12.

[0044] The first conveyor 11, the second conveyor 31, and the third conveyor 51 have the same structure, each consisting of a frame and a support frame. The support frame is fixedly installed on the frame, and multiple evenly distributed rollers are arranged on the support frame for conveying rotating workpieces. Furthermore, the multiple rollers are driven by gears or sprockets and driven by a motor to ensure that the workpiece moves stably on the first conveyor 11, the second conveyor 31, or the third conveyor 51.

[0045] In specific operation, the rotating workpiece is conveyed from the first conveyor 11 to the first flipping assembly. On the first conveyor 11, the front defects of the workpiece are identified. After being flipped by the first flipping assembly, the workpiece is placed on the second conveyor 31. On the second conveyor 31, the reverse defects of the workpiece are identified. Then, the workpiece is conveyed from the second conveyor 31 to the first rotating assembly 41. On the first rotating assembly 41, the side defects of the workpiece are continuously identified by the side inspection device 42.

[0046] A correction assembly 13 is fixedly installed on the first conveyor 11. The correction assembly 13 includes a baffle 131 and a threaded sleeve 132. The baffle 131 is rotatably connected to the side of the support frame, and the threaded sleeve 132 is rotatably connected to the side of the support frame in a vertical position. A long screw 133 is threaded into the internal thread of the threaded sleeve 132. One end of the long screw 133 is rotatably connected to one end of the baffle 131 through a universal joint 134. As the long screw 133 rotates, it can push the baffle 131 to rotate horizontally around the side of the support frame through the universal joint 134. Figure 13 As shown, the universal joint 134 consists of a connecting sleeve and a connecting member. One end of the long screw 133 is rotatably connected to the connecting sleeve. Thus, when the long screw 133 rotates, it can rotate around the connecting sleeve axially. The connecting sleeve and the connecting member are rotatably connected, and the connecting member is installed on the side wall of the baffle 131. When the long screw 133 rotates, it advances in the screw sleeve 132, pushing the universal joint 134 to rotate, and then pushing the baffle 131 to rotate through the transmission of the universal joint 134.

[0047] Two baffles 131 are symmetrically arranged on both sides of the top of the first conveyor 11, and both baffles 131 contact the rotating workpiece. The workpiece is kept in the center position by the correction component 13, which facilitates the subsequent processing of the workpiece. The workpiece can be moved to the first flipping component, which ensures that the first flipping component drives the workpiece to flip over, ensuring stable performance during operation. By setting the correction component 13, it can be ensured that workpieces of different sizes are always in the center, avoiding the problem of deviation.

[0048] The first flipping assembly includes a fixed frame 21, which is U-shaped and positioned between the first conveyor 11 and the second conveyor 31. A drive motor 211 is fixedly mounted on the outer wall of the fixed frame 21, and the output end of the drive motor 211 is connected to the flipping mechanism. The flipping mechanism includes a fixed clamping plate 212 and a movable clamping plate 214. The output end of the drive motor 211 is fixedly connected to the fixed clamping plate 212, and the fixed clamping plate 212 is rotatably mounted inside the fixed frame 21. A stop block 213 is fixedly connected to the fixed clamping plate 212 to limit the position of the rotating workpiece. The end of the fixed clamping plate 212 is rotatably connected to the movable clamping plate 214, which is a bent structure and positioned above the rotating workpiece. An electric push rod 215 is fixedly mounted on the movable clamping plate 214, and the telescopic end of the electric push rod 215 is connected via... The movable part 216 is rotatably connected to the stop block 213. When the first conveyor 11 moves the workpiece to the first flipping assembly, a part of the workpiece enters between the fixed clamping plate 212 and the movable clamping plate 214 and stops moving after contacting the stop block 213. At this time, the electric push rod 215 is shortened, and the movable part 216 drives the movable clamping plate 214 to rotate. Then, the fixed clamping plate 212 and the movable clamping plate 214 clamp and fix one side of the workpiece. At this time, the drive motor 211 works, driving the workpiece to flip clockwise, so that the workpiece is placed on the second conveyor 31. At this time, the movable clamping plate 214 opens and supports one side of the workpiece. When the second conveyor 31 works, the workpiece is smoothly moved onto the second conveyor 31, which can realize the rapid and stable flipping of the workpiece.

[0049] The protective component 61 consists of a U-shaped frame. A negative pressure device is installed on the protective component 61 to adsorb dust during grinding. A grinding component is provided on one side of the protective component 61. The grinding component includes an adjustment component 62 and a telescopic component 63. The adjustment component 62 includes a column 621, which is fixedly installed on one side of the third conveyor 51. A first hydraulic cylinder 622 is fixedly installed inside the column 621. The telescopic end of the first hydraulic cylinder 622 is fixedly connected to a square rod 624 through a slider 623. Both the slider 623 and the square rod 624 are slidably connected inside the column 621. A swing motor 625 is fixedly connected to the top of the square rod 624. The output end of the swing motor 625 is fixedly connected to a rotating seat 626. The rotating seat 626 is rotatably connected to the top of the square rod 624, and the side wall of the rotating seat 626 is fixedly connected to the telescopic component 63.

[0050] The telescopic assembly 63 includes a crossbeam 631. One end of the crossbeam 631 is fixedly connected to the side wall of the rotating seat 626. A second hydraulic cylinder 632 is fixedly installed inside the other end of the crossbeam 631. The telescopic end of the second hydraulic cylinder 632 is fixedly connected to the telescopic rod 633. The telescopic rod 633 is slidably connected to the crossbeam 631. The end of the telescopic rod 633 away from the second hydraulic cylinder 632 is fixedly connected to the telescopic arm 634. An electric motor connected to the grinding disc 635 is fixedly installed inside the telescopic arm 634. The electric motor drives the grinding disc 635 to rotate to achieve grinding treatment on the surface or side of the workpiece.

[0051] Furthermore, there are several protective components 61, and the grinding disc 635 on one side of each protective component 61 is of different material and size. By using grinding discs 635 of different materials and sizes to grind different defects, the performance of the grinding machine can be improved. There are also several third conveyors 51, which are respectively set on both sides of the protective component 61 and between the protective components 61.

[0052] The conveying assembly includes a support 71 and a slide 711. The support 71 has a U-shaped structure, and both ends of the support 71 are fixedly connected to the slide 711. A travel motor 712 is fixedly installed on the top of the slide 711. A gear is fixedly connected to the output end of the travel motor 712. The gear is located inside a groove 713 opened at the bottom of the slide 711. A rack 715 is also embedded in the groove 713. The rack 715 is fixedly installed above the track 714, and the gear meshes with the rack 715.

[0053] Tracks 714 are respectively installed on the second conveyor 31, the first rotating component 41, the third conveyor 51 and the second conveying component. A clamping mechanism is fixedly installed on the top of the support 71. At least one conveying component is provided on the track 714. The clamping structure 722 can be moved to the corresponding position through the conveying component, thereby realizing the transfer of workpieces and the disassembly and fixing at different workstations.

[0054] When the workpiece moves from the second conveyor 31 to the first rotating assembly 41, it is moved to the second conveyor 31 by the conveying assembly, and the workpiece is placed directly on the first rotating assembly 41 by the clamping structure 722. Similarly, the workpiece can be transferred from the first rotating assembly 41 to the third conveyor 51, and from the third conveyor 51 to the second rotating assembly, etc.

[0055] The clamping mechanism includes a lifting cylinder 72, a connecting plate 721, and a clamping structure 722. The lifting cylinder 72 is fixedly installed on the top of the support 71. The telescopic end of the lifting cylinder 72 passes through the support 71 and is fixedly connected to the connecting plate 721. The clamping structure 722 is fixedly installed at the bottom of the connecting plate 721. The clamping structure 722 is preferably a multi-jaw chuck. The workpiece is clamped by the clamping structure 722 and the lifting cylinder 72 is used to lift and move the workpiece.

[0056] The second rotating assembly includes a support frame 81, within which a three-jaw chuck 82 is rotatably connected. A rotary motor 811 is fixedly mounted at the bottom of the support frame 81, and the output end of the rotary motor 811 is fixedly connected to the three-jaw chuck 82. A ring-shaped spiral disk 821 is rotatably connected within the three-jaw chuck 82. The top surface of the spiral disk 821 has a spiral groove with a vortex structure. A jaw 822 is slidably connected inside the top of the three-jaw chuck 82, and the jaw 822 engages with the top surface of the spiral disk 821. Figure 14 and Figure 15 As shown, a worm gear and a motor driving the worm gear are fixedly installed inside the three-jaw chuck 82. The motor is fixedly installed inside the three-jaw chuck 82, and the worm gear is rotatably connected to the three-jaw chuck 82 below the spiral disk 821. An annular worm wheel is fixedly connected to the bottom of the spiral disk 821, and the worm gear meshes with the worm wheel. Thus, when the motor drives the worm gear to rotate inside the three-jaw chuck 82, the worm gear drives the worm wheel to rotate, causing the spiral disk 821 to rotate inside the three-jaw chuck 82. At this time, the spiral groove on the top surface of the spiral disk 821 meshes with the toothed block at the bottom of the jaw 822, thereby driving the jaw 822 to move towards the center or away from it, thereby realizing the clamping of the rotating workpiece.

[0057] The workpiece is positioned by installing a three-jaw chuck 82 inside the support frame 81. At the same time, the rotary motor 811 drives the three-jaw chuck 82 and the workpiece to rotate synchronously, thereby realizing grinding or defect detection. The bottom of the spiral disk 821 is provided with a worm wheel with an annular structure. A worm is rotatably connected inside the three-jaw chuck 82, and the worm and the worm wheel are meshed together. The worm is connected to the drive equipment. Through the cooperation of the worm wheel and the worm, the spiral disk 821 is driven to rotate, thereby adjusting the position of the jaws 822 and achieving stable fixation of the workpiece.

[0058] Furthermore, the first rotating component 41 and the second rotating component have the same structure. Both are supported by the support frame 81 for the three-jaw chuck 82, and drive the three-jaw chuck 82 to rotate within the support frame 81 to achieve the rotation of the workpiece. When the first rotating component 41 is working, the side inspection device 42 can be used to detect defects on the side of the workpiece. When the second rotating component is working, it can drive the workpiece to rotate and contact the rotating grinding disc 635 to achieve defect processing.

[0059] The second tilting assembly includes a vertical plate 91 and a tilting plate 912. The vertical plate 91 is fixedly mounted on the support frame 81 of the second rotating assembly. A control motor 911 is fixedly mounted on the top of the vertical plate 91. The tilting plate 912 is fixedly connected to the output end of the control motor 911. The tilting plate 912 has an L-shaped structure and is rotatably connected to the top of the vertical plate 91. A translation structure is provided at the bottom of the tilting plate 912. The translation structure includes a first cylinder 913 and a push plate 914. The first cylinder 913 is fixedly mounted on the horizontal part of the bottom of the tilting plate 912. The telescopic end of the first cylinder 913 is connected to... The push plate 914 is fixedly connected. The push plate 914 has a T-shaped structure and slides against the bottom of the flip plate 912. Both ends of the push plate 914 are fixedly connected to limit blocks 915. The limit blocks 915 are used to limit the side walls of the rotating body to ensure that it will not fall off when it flips. The top of the push plate 914 is rotatably connected to a pressure plate 916. One end of the pressure plate 916 and the push plate 914 form a gap for clamping the workpiece. The other end of the pressure plate 916 is rotatably connected to the telescopic end of the second cylinder 917. The second cylinder 917 is rotatably installed at the bottom of the push plate 914.

[0060] When the second flipping component is not working, the push plate 914 is located inside the flip plate 912. At this time, the support 71 of the conveying component can move above the upright plate 91, so that the conveying component and the second flipping component do not affect each other. There is a certain gap between the flip plate 912 and the support frame 81 to ensure that the flip plate 912 can rotate smoothly. Specifically, when the conveying component moves the workpiece above the second rotating component, the first cylinder 913 extends and drives the push plate 914 to extend, so that the push plate 914 can contact the bottom of the workpiece. At this time, the pressure plate 916 is inclined and does not contact the workpiece. After placement, the pressure plate 916 rotates to press and fix the top of the workpiece. The workpiece of the rotating body can be limited by the limiting block 915. When the flip plates 912 on both sides drive the workpiece to rotate, the workpiece is limited by the limiting block 915 to make it rotate stably.

[0061] The workpiece is flipped and processed at different second rotating components. The workpiece is moved to the corresponding second rotating component by the data transmitted by the defect detection assembly 10. The top or side surface of the workpiece is processed by the grinding disc 635. When the bottom surface needs to be processed, the workpiece is flipped by the second flipping component to achieve automatic processing.

[0062] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A grinding machine suitable for defect detection of various types of rotating workpieces, comprising a defect detection assembly (10) and a grinding assembly (20), characterized in that, The defect detection assembly (10) consists of a first conveyor (11), a first flipping component, a second conveyor (31), a first rotating component (41), and a third conveyor (51). The first conveyor (11), the first flipping component, the second conveyor (31), the first rotating component (41), and the third conveyor (51) are arranged sequentially to form a production line for defect detection of rotating workpieces. The first conveyor (11), the first flipping component, the second conveyor (31), the first rotating component (41), and the third conveyor (51) are fixedly connected in pairs. A front inspection device (12) is installed on one side of the first conveyor (11), a back inspection device (32) is installed on one side of the second conveyor (31), and a fixed device is installed on one side of the first rotating component (41). Side inspection device (42); The first conveyor (11), the second conveyor (31) and the third conveyor (51) have the same structure, all consisting of a frame and a support frame. The support frame is fixedly installed on the frame. Multiple evenly distributed rollers are arranged on the support frame for conveying rotating workpieces. The first conveyor (11) is fixedly installed with a correction assembly (13). The correction assembly (13) includes a baffle (131) and a screw sleeve (132). The screw sleeve (132) is rotatably connected to the side of the support frame in a vertical position. The baffle (131) is rotatably connected to the side of the support frame. The screw sleeve (132) is threaded with a long screw (133). One end of the long screw (133) is rotatably connected to one end of the baffle (131) through a universal joint (134). The grinding assembly (20) consists of a protective component (61), a conveying component, a second rotating component, and a second tilting component. There are multiple third conveyors (51) and second rotating components. Multiple third conveyors (51) and second rotating components are fixedly installed in sequence. The third conveyors (51) and second rotating components are arranged alternately to form multiple grinding stations. The grinding assembly (20) is fixedly installed on one side of the defect detection assembly (10). The protective component (61) and second rotating component are arranged in sequence and located on one side of the defect detection assembly (10). The conveying component is set on the second conveyor (31), the second rotating component, and the third conveyor (51). The first rotating component (41) and the second rotating component have the same structure. The second rotating component includes a support frame (81), a three-jaw chuck (82) is rotatably connected inside the support frame (81), a rotary motor (811) is fixedly installed at the bottom of the support frame (81), the output end of the rotary motor (811) is fixedly connected to the three-jaw chuck (82), a spiral disk (821) with an annular structure is rotatably connected inside the three-jaw chuck (82), a spiral groove with a vortex structure is opened on the top surface of the spiral disk (821), and a jaw (822) is slidably connected inside the top of the three-jaw chuck (82), and the jaw (822) is engaged with the top surface of the spiral disk (821).

2. The grinding machine as described in claim 1, applicable to defect detection of various types of rotating workpieces, characterized in that: The first flipping component includes a fixed frame (21), which is a U-shaped structure and is located between the first conveyor (11) and the second conveyor (31). A drive motor (211) is fixedly installed on the outer wall of the fixed frame (21), and the output end of the drive motor (211) is connected to the flipping mechanism.

3. The grinding machine as described in claim 2, applicable to defect detection of various types of rotating workpieces, characterized in that: The flipping mechanism includes a fixed clamping plate (212) and a movable clamping plate (214). The output end of the drive motor (211) is fixedly connected to the fixed clamping plate (212). The end of the fixed clamping plate (212) is rotatably connected to the movable clamping plate (214). An electric push rod (215) is fixedly installed on the movable clamping plate (214). The telescopic end of the electric push rod (215) is rotatably connected to the stop block (213) through a movable part (216).

4. The grinding machine as described in claim 1, applicable to defect detection of various types of rotating workpieces, characterized in that: The protective component (61) is composed of a U-shaped frame. A grinding component is provided on one side of the protective component (61). The grinding component includes an adjustment component (62) and a telescopic component (63).

5. The grinding machine as described in claim 1, applicable to defect detection of various types of rotating workpieces, characterized in that: The conveying assembly includes a support (71) and a slide (711). The support (71) has a U-shaped structure. Both ends of the support (71) are fixedly connected to the slide (711). A walking motor (712) is fixedly installed on the top of the slide (711). A gear is fixedly connected to the output end of the walking motor (712). The gear is located inside a groove (713) opened at the bottom of the slide (711). A rack (715) is also embedded in the groove (713). The rack (715) is fixedly installed above the track (714), and the gear meshes with the rack (715). The track (714) is installed on the second conveyor (31), the first rotating assembly (41), the third conveyor (51), and the second rotating assembly, respectively. A clamping mechanism is fixedly installed on the top of the support (71).

6. The grinding machine as described in claim 1, applicable to defect detection of various types of rotating workpieces, characterized in that: The second flipping component includes a vertical plate (91) and a flip plate (912). The vertical plate (91) is fixedly installed on the support frame (81) of the second rotating component. The flip plate (912) is rotatably connected to the top of the vertical plate (91). The bottom of the flip plate (912) is provided with a translation structure.

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