An inspection mechanism for surface defects in forgings

Abstract

This invention discloses a detection mechanism for surface defects in forgings, belonging to the field of forging inspection technology. The detection mechanism includes a detection table, a flaw detector mounted on the outer wall of the top of an electric cylinder, a cleaning component for removing oxide scale from the surface of the forging on the outer wall of the detection table, and a drive component mounted on the inner wall of a support plate. The distance between the front and rear push blocks can be adjusted according to the length of the cylindrical forging by rotating a small-lead screw. After the cylindrical forging is placed on the surface of the support plate, the small-lead screw drives the front and rear push blocks to slowly move the cylindrical forging towards the flaw detector. Simultaneously, the first and second drive rollers push the cylindrical forging to rotate rapidly. At this time, the cleaning component moves towards the surface of the cylindrical forging, forming a sealed area on its surface, and the grinding disc is activated to grind the oxide scale within the sealed area. The dust and impurities generated during grinding are discharged through an exhaust pipe.

Description

Technical Field

[0001] This invention relates to the field of forging inspection technology, and in particular to a detection mechanism for surface defects in forgings. Background Technology

[0002] Forgings are workpieces or blanks obtained by forging and deforming metal billets. After processing, the forgings need to be inspected by a flaw detection device to ensure their quality, eliminate internal defects, and reduce the scrap rate of forging production.

[0003] Chinese Patent CN118465083B, published on September 3, 2024, discloses a device for flaw detection in forging. This device uses an elastically limited installation method for the flaw detection unit to adapt to the unevenness of the circumferential surface of cylindrical castings, ensuring the unit remains in close contact with the surface and thus improving the accuracy of the flaw detection results. However, this device cannot clean the surface of the casting when performing flaw detection on cylindrical castings. This allows oxide scale to mask fine cracks, folds, and other defects on the casting surface, reducing detection sensitivity and making it somewhat inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to provide a detection mechanism for surface defects in forgings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a detection mechanism for surface defects of forgings, comprising a detection table, an electric cylinder fixedly connected to the outer wall of the detection table, a flaw detector mounted on the top outer wall of the electric cylinder, an electric slide rail mounted on the top outer wall of the detection table, an electric slider slidably connected to the outer wall of the electric slide rail, a support plate fixedly connected to the outer wall of the electric slider, a cleaning assembly for cleaning oxide scale on the surface of the forgings provided on the outer wall of the detection table, the cleaning assembly comprising a cylinder and a grinding disc mounted on the outer wall of the detection table, a cleaning box fixedly connected to the top outer wall of the cylinder, a motor mounted on the outer wall of the cleaning box, the motor driving the grinding disc to rotate through a linkage mechanism, and a driving assembly for driving the movement of the forgings provided on the inner wall of the support plate.

[0006] Furthermore, multiple sets of electric slide rails are provided on the surface of the testing platform, and the support plates are symmetrically arranged about the central axis of the testing platform.

[0007] Furthermore, the linkage mechanism includes a connecting sleeve disposed on the inner wall of the cleaning box and a connecting shaft mounted on the outer wall of one end of the motor. A connecting column is slidably connected to the inner wall of the connecting sleeve, and a connecting spring adapted to the connecting column is disposed on the inner wall of the connecting sleeve. A ball cage is fixedly connected to the bottom outer wall of the connecting column. A first sliding groove is formed on the inner wall of the ball cage. An inner ball is rotatably connected to the inner wall of the ball cage. A second sliding groove is formed on the outer wall of the inner ball. A ball adapted to the first sliding groove is disposed on the inner wall of the second sliding groove. A retainer is rotatably connected to the outer wall of the ball. A grinding disc is fixedly connected to the bottom outer wall of the inner ball. A transmission gear is fixedly connected to the outer wall of the connecting sleeve. A drive gear is fixedly connected to the outer wall of the connecting shaft. A chain adapted to the transmission gear is disposed on the outer wall of the drive gear.

[0008] Furthermore, the connecting sleeves are symmetrically arranged about the central axis of the cleaning box, and the drive gear drives the two sets of connecting sleeves to rotate via a chain.

[0009] Furthermore, the linkage mechanism also includes an elastic telescopic sleeve and a dust suction structure installed on the outer wall of the bottom end of the cleaning box. The inner wall of the cleaning box is provided with an empty compartment for storing hydraulic oil. The inner wall of the empty compartment is provided with a push rod adapted to the elastic telescopic sleeve, and multiple sets of push rods are equally spaced on the inner wall of the empty compartment.

[0010] Furthermore, the dust collection structure includes fan blades mounted on the outer wall of the bottom end of the connecting shaft, and an air inlet provided on the outer wall of the bottom end of the elastic telescopic sleeve. An exhaust pipe is fixedly connected to the outer wall of the cleaning box.

[0011] Furthermore, the driving assembly includes a limiting groove on the outer wall of the support plate and a small-lead lead screw mounted on the inner wall of the support plate. A push block adapted to the limiting groove is provided on the outer wall of the small-lead lead screw. A first support shaft is rotatably connected to the outer wall of the push block. A first driving roller is fixedly connected to the outer wall of the first support shaft. A first support block is rotatably connected to the outer wall of one end of the first driving roller. A first rotating sleeve adapted to the small-lead lead screw is provided on the inner wall of the first support block, and the first rotating sleeve is rotatably connected to the first support block. A first connecting gear is threaded onto the outer wall of the small-lead lead screw. A first connecting ring adapted to the push block is provided on the inner wall of the first connecting gear. The first support shaft... The outer wall of the screw has a second connecting gear adapted to the first connecting gear. The outer wall of the small lead screw has a push block adapted to the limit groove. The outer wall of the push block is rotatably connected to a second support shaft. The outer wall of the second support shaft is fixedly connected to a second drive roller. The outer wall of one end of the second drive roller is rotatably connected to a second support block. The inner wall of the second support block has a second rotating sleeve adapted to the small lead screw, and the second rotating sleeve is rotatably connected to the second support block. The outer wall of the small lead screw is threaded with a first linkage gear. The inner wall of the first linkage gear has a second connecting ring adapted to the push block. The outer wall of the second support shaft has a second linkage gear adapted to the first linkage gear.

[0012] Furthermore, the push block includes a push block body, an inner wall of which is provided with a threaded sleeve adapted to a small lead screw, a fixed retaining ring fixedly connected to the outer wall of the threaded sleeve, a movable retaining ring adapted to the fixed retaining ring on the inner wall of the push block body, a return spring adapted to the movable retaining ring on the inner wall of the push block body, and through slots adapted to the movable retaining ring evenly spaced on the outer wall of the push block body. An electric push rod is installed on the inner wall of one end of the support plate, a connecting plate is fixedly connected to the outer wall of one end of the electric push rod, and push rods adapted to the through slots are evenly spaced on the outer wall of the connecting plate.

[0013] Furthermore, the drive assembly also includes a first connecting bevel gear mounted on the outer wall of one end of a small lead screw, and a second transmission bevel gear mounted on the outer wall of one end of another set of small lead screws. A transmission rod is rotatably connected to the inner wall of one end of the support plate, and a second connecting bevel gear adapted to the first connecting bevel gear is provided on the outer wall of one end of the transmission rod. A transmission shaft is rotatably connected to the inner wall of one end of another set of the support plates, and a connecting groove adapted to the transmission rod is provided on the inner wall of one end of the transmission shaft. A first transmission bevel gear adapted to the second transmission bevel gear is provided on the outer wall of one end of the transmission shaft.

[0014] Unlike existing technologies, the beneficial effects of this application are as follows: the surface defect detection mechanism for the forging can adjust the distance between the front push block and the rear push block according to the length of the cylindrical forging by rotating the small lead screw. After the cylindrical forging is placed on the surface of the support plate, the small lead screw drives the front push block and the rear push block to slowly move the cylindrical forging towards the flaw detector. At the same time, the first drive roller and the second drive roller push the cylindrical forging to rotate rapidly. At this time, the cleaning component moves towards the surface of the cylindrical forging and forms a sealing area on its surface. The grinding disc is activated to grind the oxide scale in the sealing area, and the dust and impurities produced by grinding are discharged through the exhaust pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure in which the electric slide rail and the electric slider of the present invention cooperate with each other.

[0017] Figure 3 This is a schematic diagram of the structure in which the support plate and the small lead screw of the present invention cooperate with each other.

[0018] Figure 4 This is a schematic diagram of the interaction between the slide and the push block of the present invention.

[0019] Figure 5 This is a schematic diagram of the mutual cooperation structure between the first connecting gear and the first connecting ring of the present invention.

[0020] Figure 6 This is a schematic diagram of the interaction structure between the first linkage gear and the second connecting ring of the present invention.

[0021] Figure 7 This is a schematic diagram of the structure in which the fixed retaining ring and the movable retaining ring cooperate with each other according to the present invention.

[0022] Figure 8 This is a schematic diagram of the interaction between the transmission rod and the connecting groove of the present invention.

[0023] Figure 9 This is a schematic diagram of the structure in which the empty chamber and the push rod of the present invention cooperate.

[0024] Figure 10 This is a schematic diagram of the interlocking structure of the connecting column and the connecting spring of the present invention.

[0025] Figure 11 This is a schematic diagram of the interaction between the ball cage and the first sliding groove of the present invention.

[0026] Figure 12 This is a schematic diagram of the structure in which the ball bearings and cage of the present invention cooperate with each other.

[0027] Figure 13For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Inspection table; 2. Electric cylinder; 3. Flaw detector; 4. Electric slide rail; 5. Electric slider; 6. Support plate; 7. Limiting groove; 8. Small lead screw; 9. Front push block; 10. First support shaft; 11. First drive roller; 12. First support block; 13. First rotating sleeve; 14. First connecting gear; 15. First connecting ring; 16. Second connecting gear; 17. Rear push block; 1701. Rear push block body; 1702. Threaded sleeve; 1703. Fixed retaining ring; 1704. Moving retaining ring; 1705. Return spring; 1706. Through groove; 18. Second support shaft; 19. Second drive roller; 20. Second support block; 21. Second rotating sleeve; 22. First linkage gear; 23. Second connecting ring; 24. 25. First connecting bevel gear; 26. Transmission rod; 27. Second connecting bevel gear; 28. Transmission shaft; 29. ​​Connecting groove; 30. First transmission bevel gear; 31. Second transmission bevel gear; 32. Cylinder; 33. Cleaning box; 34. Elastic telescopic sleeve; 35. Empty chamber; 36. Push rod; 37. Connecting sleeve; 38. Connecting column; 39. Connecting spring; 40. Ball cage; 41. First slide groove; 42. Inner ball; 43. Second slide groove; 44. Ball bearing; 45. Cage; 46. Grinding disc; 47. Transmission gear; 48. Motor; 49. Connecting shaft; 50. Drive gear; 51. Chain; 52. Fan blade; 53. Exhaust pipe; 54. Air inlet; 55. Electric push rod; 56. Connecting plate; 57. Push rod. Detailed Implementation

[0029] 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 embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Example 1: Please refer to Figures 1-13This invention provides a technical solution: a detection mechanism for surface defects of forgings, comprising a detection table 1, an electric cylinder 2 fixedly connected to the outer wall of the detection table 1, a flaw detector 3 installed on the top outer wall of the electric cylinder 2, an electric slide rail 4 installed on the top outer wall of the detection table 1, an electric slider 5 slidably connected to the outer wall of the electric slide rail 4, a support plate 6 fixedly connected to the outer wall of the electric slider 5, a cleaning assembly for cleaning oxide scale on the surface of the forgings provided on the outer wall of the detection table 1, the cleaning assembly including a cylinder 32 and a grinding disc 46 installed on the outer wall of the detection table 1, a cleaning box 33 fixedly connected to the top outer wall of the cylinder 32, a motor 48 installed on the outer wall of the cleaning box 33, the motor 48 driving the grinding disc 46 to rotate through a linkage mechanism, and a driving assembly for driving the movement of the forgings provided on the inner wall of the support plate 6.

[0032] In use, first connect an external power source to allow the electric slider 5 to slide on the surface of the electric slide rail 4, thereby adjusting the distance between the two support plates 6 according to the size of the cylindrical forging. Then, place the cylindrical forging onto the surface of the two support plates 6 and connect an external motor to start the drive assembly. The drive assembly pushes the cylindrical forging along the surface of the support plates 6 towards the flaw detector 3 and rotates it. When the cylindrical forging moves below the cleaning assembly, the cylinder 32 is activated to push the cleaning box 33 towards the surface of the cylindrical forging, causing the grinding disc 46 to adhere to the surface of the cylindrical forging. Then connect... An external power source starts the motor 53, which drives the grinding disc 46 to rotate on the surface of the cylindrical forging through a linkage mechanism. This grinds the surface of the cylindrical forging and removes the oxide scale. When the cylindrical forging moves below the flaw detector 3 after the oxide scale is removed, the electric cylinder 2 starts the cylinder and pushes the flaw detector 3 toward the surface of the cylindrical forging. This brings the flaw detector 3 close to the surface of the cylindrical forging, and the drive assembly drives the rotation of the cylindrical forging to complete the detection of defects in the cylindrical forging. After the detection is completed, the drive assembly pushes the cylindrical forging back to its original position.

[0033] Please see Figures 10-12The linkage mechanism includes a connecting sleeve 37 mounted on the inner wall of the cleaning box 33 and a connecting shaft 49 mounted on the outer wall of one end of the motor 48. A connecting post 38 is slidably connected to the inner wall of the connecting sleeve 37. A connecting spring 39 adapted to the connecting post 38 is provided on the inner wall of the connecting sleeve 37. A ball cage 40 is fixedly connected to the bottom outer wall of the connecting post 38. A first groove 41 is provided on the inner wall of the ball cage 40. An inner ball 42 is rotatably connected to the inner wall of the ball cage 40. A second groove 43 is provided on the outer wall of the inner ball 42. A ball bearing 44 adapted to the first groove 41 is provided on the inner wall of the second groove 43. A retainer 45 is rotatably connected to the outer wall of the ball bearing 44. A grinding disc 46 is fixedly connected to the bottom outer wall of the inner ball 42. A transmission gear 47 is fixedly connected to the outer wall of the connecting sleeve 37. A drive gear 50 is fixedly connected to the outer wall of the connecting shaft 49. A chain 51 adapted to the transmission gear 47 is provided on the outer wall of the drive gear 50.

[0034] In use, when cylinder 32 pushes the grinding disc 46 to conform to the surface of the cylindrical forging, cylinder 32 continues to push the cleaning box 33 downward, causing the grinding disc 46 to press against the surface of the cylindrical forging. At this time, the cylindrical forging applies a counter-force to the grinding disc 46, causing the grinding disc 46 to flip along the surface of the cylindrical forging, thereby causing the inner ball 42 to rotate inside the ball cage 40. At this time, the ball 44 slides on the surfaces of the first groove 41 and the second groove 43, and is connected to the ball 44 through the cage 44, so that when the inner ball 42 rotates inside the ball cage 40, multiple sets of ball 44 can be kept on the same horizontal line. At the same time, the cylindrical forging will exert a counter-force on the grinding disc 46. 6. A counter-force is applied, causing the inner ball 42 to push the connecting column 38 into the interior of the connecting sleeve 37 through the ball cage 40 and squeeze the connecting spring 39. Then, the external power supply is connected to start the motor 48, which drives the drive gear 50 to rotate through the connecting shaft 49. Through the meshing between the drive gear 50, the chain 51 and the transmission gear 47, the drive gear 50 drives the transmission gear 47 to rotate synchronously through the chain 51, thereby driving the connecting sleeve 37 and the connecting column 38 to rotate. Through the engagement of the ball 44, the connecting column 38 drives the ball cage 40 to rotate, which in turn drives the inner ball 42 to rotate through the ball 44, thereby driving the grinding disc 46 to grind the surface of the cylindrical forging.

[0035] Please see Figure 9 The linkage mechanism also includes an elastic telescopic sleeve 34 and a dust suction structure installed on the outer wall of the bottom end of the cleaning box 33. An empty chamber 35 for storing hydraulic oil is provided on the inner wall of the cleaning box 33. A push rod 36 adapted to the elastic telescopic sleeve 34 is provided on the inner wall of the empty chamber 35, and multiple sets of push rods 36 are equally spaced on the inner wall of the empty chamber 35.

[0036] In use, when the cylinder 32 pushes the cleaning box 33 toward the surface of the cylindrical forging, the elastic telescopic sleeve 34 will first contact the surface of the cylindrical forging. At this time, the cylinder 32 continues to push the cleaning box 33 downward. The cylindrical forging will then apply a counter-force to the elastic telescopic sleeve 34, causing the part of the elastic telescopic sleeve 34 in contact with the cylindrical forging to contract. This pushes the push rod 36 inside that part to slide into the interior of the empty chamber 35 and squeezes the hydraulic oil inside the empty chamber 35. After being squeezed, the hydraulic oil will push the push rod 36, which is not in contact with the surface of the cylindrical forging, to slide outward. This pushes the part of the elastic telescopic sleeve 34 that is not in contact with the surface of the cylindrical forging to extend outward and fit against the surface of the cylindrical forging, thus ensuring that the dust particles generated by the grinding disc 46 during operation will not spread into the air.

[0037] Please see Figure 10 The dust collection structure includes a fan blade 52 mounted on the outer wall of the bottom end of the connecting shaft 49, and an air inlet 54 set on the outer wall of the bottom end of the elastic telescopic sleeve 34. An exhaust pipe 53 is fixedly connected to the outer wall of the cleaning box 33.

[0038] When in use, the connecting shaft 49 drives the drive gear 50 to rotate, which in turn drives the fan blade 52 to rotate synchronously. This causes the dust particles generated by the grinding disc 46 inside the cleaning box 33 during operation to be discharged from the exhaust pipe 53 along with the air. At the same time, external air enters the interior of the cleaning box 33 through the air inlet 54, thus ensuring the stability of the air pressure inside the cleaning box 33.

[0039] Please see Figures 4-6The drive assembly includes a limiting groove 7 on the outer wall of the support plate 6 and a small lead screw 8 mounted on the inner wall of the support plate 6. A push block 9 adapted to the limiting groove 7 is provided on the outer wall of the small lead screw 8. A first support shaft 10 is rotatably connected to the outer wall of the push block 9. A first drive roller 11 is fixedly connected to the outer wall of the first support shaft 10. A first support block 12 is rotatably connected to the outer wall of one end of the first drive roller 11. A first rotating sleeve 13 adapted to the small lead screw 8 is provided on the inner wall of the first support block 12, and the first rotating sleeve 13 is rotatably connected to the first support block 12. A first connecting gear 14 is threaded onto the outer wall of the small lead screw 8. A first connecting ring 15 adapted to the push block 9 is provided on the inner wall of the first connecting gear 14. A first connecting ring 15 adapted to the push block 9 is provided on the outer wall of the first support shaft 10. The first connecting gear 14 is adapted to the second connecting gear 16. The outer wall of the small lead screw 8 is provided with a limit groove 7 adapted to the push block 17. The outer wall of the push block 17 is rotatably connected to the second support shaft 18. The outer wall of the second support shaft 18 is fixedly connected to the second drive roller 19. The outer wall of one end of the second drive roller 19 is rotatably connected to the second support block 20. The inner wall of the second support block 20 is provided with the second rotating sleeve 21 adapted to the small lead screw 8, and the second rotating sleeve 21 is rotatably connected to the second support block 20. The outer wall of the small lead screw 8 is threadedly connected to the first linkage gear 22. The inner wall of the first linkage gear 22 is provided with the second connecting ring 23 adapted to the push block 17. The outer wall of the second support shaft 18 is provided with the second linkage gear 24 adapted to the first linkage gear 22.

[0040] In use, after the cylindrical forging is placed on the surface of the support block 6, the first drive roller 11 and the second drive roller 19 support the cylindrical forging, causing the front push block 9 and the rear push block 17 to clamp the cylindrical forging. Then, an external motor drives the small lead screw 8 to rotate, and the front push block 9 and the rear push block 17 are limited by the limiting groove 7, thereby converting the rotational motion of the front push block 9 and the rear push block 17 and the small lead screw 8 into the linear motion of the front push block 9 and the rear push block 17 in the limiting groove 7, which can push the front push block 9 and the rear push block 17 to slide along the surface of the limiting groove 7. When the small lead screw 8 rotates, it drives the first connecting gear 14 through the first connecting ring 1. 5 rotates on the surface of the front push block 9, while the first linkage gear 22 rotates on the surface of the rear push block 17 through the second connecting ring 23. This allows the front push block 9 and the rear push block 17 to slide on the surface of the limiting groove 7, and thus, through the first connecting ring 15 and the second connecting ring 23, push the first connecting gear 14 and the first linkage gear 22 to move on the surface of the small lead screw 8. Based on the characteristic that the smaller the lead screw's lead, the lower the sliding speed, the front push block 9 and the rear push block 17 slide slowly when the small lead screw 8 rotates, while the first connecting gear 14 and the first linkage gear 22 rotate at high speeds. Through the meshing between the first connecting gear 14 and the second connecting gear 16, the first... When the connecting gear 14 rotates, it pushes the first support shaft 10 to rotate on the surfaces of the front push block 9 and the first support block 12 via the second connecting gear 16. The limiting groove 7 limits the first support block 12, causing the small lead screw 8 to rotate and drive the first rotating sleeve 13 to rotate on the surface of the first support block 12, thereby driving the first drive roller 11 to rotate. When the small lead screw 8 drives the front push block 9 to move, the front push block 9 pushes the first rotating sleeve 13 along the surface of the small lead screw 8 via the first support shaft 10 and the first support block 12. Simultaneously, through the meshing between the first linkage gear 22 and the second linkage gear 24, the first linkage gear 22 rotates... The second linkage gear 24 drives the second support shaft 18 to rotate on the surfaces of the rear push block 17 and the second support block 20. The limiting groove 7 limits the second support block 20, so that when the small lead screw 8 rotates, it drives the second rotating sleeve 21 to rotate on the surface of the second support block 20, thereby driving the first drive roller 11 to rotate. When the small lead screw 8 drives the rear push block 17 to move, the rear push block 17 pushes the second rotating sleeve 21 to move along the surface of the small lead screw 8 through the second support shaft 18 and the second support block 20, which can push the cylindrical forging to move towards the flaw detector 3, and push the cylindrical forging to rotate through the first drive roller 11 and the second drive roller 19.

[0041] When it is necessary to adjust the distance between the front push block 9 and the rear push block 17 according to the length of the cylindrical forging, please refer to [the relevant documentation]. Figure 4 , Figure 6 , Figure 7 and Figure 13The push block 17 includes a push block body 1701. A threaded sleeve 1702 adapted to a small lead screw 8 is provided on the inner wall of the push block body 1701. A fixed retaining ring 1703 is fixedly connected to the outer wall of the threaded sleeve 1702. A movable retaining ring 1704 adapted to the fixed retaining ring 1703 is provided on the inner wall of the push block body 1701. A return spring 1705 adapted to the movable retaining ring 1704 is provided on the inner wall of the push block body 1701. Through grooves 1706 adapted to the movable retaining ring 1704 are provided at equal intervals on the outer wall of the push block body 1701. An electric push rod 55 is installed on the inner wall of one end of the support plate 6. A connecting plate 56 is fixedly connected to the outer wall of one end of the electric push rod 55. A push rod 57 adapted to the through groove 1706 is provided at equal intervals on the outer wall of the connecting plate 56.

[0042] In use, firstly, the small-lead lead screw 8 moves the rear push block 17 to one end of the support plate 6 and makes it fit against the inner wall of the support plate 6. At this time, the electric actuator 55 is activated to push the connecting plate 56 to slide against the inner wall of the support plate 6 onto the surface of the rear push block body 1701. This causes the push rod 57 on the surface of the connecting plate 56 to insert into the interior of the rear push block body 1701 through the through groove 1706, thereby pushing the movable retaining ring 1704 to slide inside the rear push block body 1701 and compress the return spring 1705, causing the movable retaining ring 1704 to separate from the fixed retaining ring 1703. This releases the connection between the rear push block body 1701 and the threaded sleeve 1702. Then, the small lead screw 8... The rotation of the lead screw 8 will drive the front push block 9 to move along the surface of the limiting groove 7, while the threaded sleeve 1702 will rotate synchronously with the small lead screw 8. Therefore, it will not push the push block body 1701 to move. The distance between the front push block 9 and the rear push block 17 can be adjusted according to the length of the cylindrical forging. After the adjustment is completed, the electric push rod 55 is started to pull the push rod 57 back into the support plate 6 through the connecting plate 56. At this time, the return spring 1705 is pushed by the force to reset the moving retaining ring 1704, so that the moving retaining ring 1704 re-engages with the fixed retaining ring 1703, thus completing the connection between the push block body 1701 and the threaded sleeve 1702.

[0043] To ensure that the two sets of small-lead lead screws 8 can still function normally after adjusting the distance between the two sets of support plates 6, please refer to [link / reference needed]. Figure 3 and Figure 8The drive assembly also includes a first connecting bevel gear 25 mounted on the outer wall of one end of a small lead screw 8, and a second transmission bevel gear 31 mounted on the outer wall of one end of another set of small lead screws 8. A transmission rod 26 is rotatably connected to the inner wall of one end of the support plate 6. A second connecting bevel gear 27 adapted to the first connecting bevel gear 25 is provided on the outer wall of one end of the transmission rod 26. A transmission shaft 28 is rotatably connected to the inner wall of one end of the other set of support plates 6. A connecting groove 29 adapted to the transmission rod 26 is provided on the inner wall of one end of the transmission shaft 28. A first transmission bevel gear 30 adapted to the second transmission bevel gear 31 is provided on the outer wall of one end of the transmission shaft 28.

[0044] In use, when the two sets of support plates 6 are moved, the two sets of support plates 6 will respectively drive the transmission rod 26 and the transmission shaft 28 to move, so that one end of the transmission rod 26 slides inside the connecting groove 29 on the surface of the transmission shaft 28. Through the meshing between the first connecting bevel gear 25 and the second connecting bevel gear 27, the small lead screw 8 drives the first connecting bevel gear 25 to rotate, and then drives the transmission rod 26 to rotate synchronously through the second connecting bevel gear 27. Through the sliding connection between the transmission rod 26 and the connecting groove 29, the first transmission bevel gear 30 is driven to rotate through the transmission shaft 28. And through the meshing between the first transmission bevel gear 30 and the second transmission bevel gear 31, the two sets of small lead screws 8 are driven to rotate synchronously.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A detection mechanism for surface defects of forgings, comprising a detection table (1), wherein an electric cylinder (2) is fixedly connected to the outer wall of the detection table (1), and a flaw detector (3) is installed on the top outer wall of the electric cylinder (2), characterized in that: An electric slide rail (4) is installed on the top outer wall of the testing platform (1). An electric slider (5) is slidably connected to the outer wall of the electric slide rail (4). A support plate (6) is fixedly connected to the outer wall of the electric slider (5). A cleaning assembly for cleaning oxide scale on the surface of forgings is provided on the outer wall of the testing platform (1). The cleaning assembly includes a cylinder (32) and a grinding disc (46) installed on the outer wall of the testing platform (1). A cleaning box (33) is fixedly connected to the top outer wall of the cylinder (32). A motor (48) is installed on the outer wall of the cleaning box (33). The motor (48) drives the grinding disc (46) to rotate through a linkage mechanism. A drive assembly for driving the movement of forgings is provided on the inner wall of the support plate (6). The linkage mechanism includes a connecting sleeve (37) disposed on the inner wall of the cleaning box (33) and a connecting shaft (49) mounted on the outer wall of one end of the motor (48). A connecting column (38) is slidably connected to the inner wall of the connecting sleeve (37). A connecting spring (39) adapted to the connecting column (38) is disposed on the inner wall of the connecting sleeve (37). A ball cage (40) is fixedly connected to the outer wall of the bottom end of the connecting column (38). A first sliding groove (41) is opened on the inner wall of the ball cage (40). An inner ball (42) is rotatably connected to the inner wall of the ball cage (40). A second groove (43) is provided on the outer wall of (42), and a ball (44) adapted to the first groove (41) is provided on the inner wall of the second groove (43). A retainer (45) is rotatably connected to the outer wall of the ball (44). A grinding disc (46) is fixedly connected to the bottom outer wall of the inner ball (42). A transmission gear (47) is fixedly connected to the outer wall of the connecting sleeve (37). A drive gear (50) is fixedly connected to the outer wall of the connecting shaft (49). A chain (51) adapted to the transmission gear (47) is provided on the outer wall of the drive gear (50). The linkage mechanism also includes an elastic telescopic sleeve (34) and a dust suction structure installed on the outer wall of the bottom end of the cleaning box (33). The inner wall of the cleaning box (33) is provided with an empty chamber (35) for storing hydraulic oil. The inner wall of the empty chamber (35) is provided with a push rod (36) adapted to the elastic telescopic sleeve (34), and multiple sets of push rods (36) are equally spaced on the inner wall of the empty chamber (35). The dust collection structure includes a fan blade (52) installed on the outer wall of the bottom end of the connecting shaft (49) and an air inlet (54) provided on the outer wall of the bottom end of the elastic telescopic sleeve (34). An exhaust pipe (53) is fixedly connected to the outer wall of the cleaning box (33).

2. The detection mechanism for surface defects of forgings according to claim 1, characterized in that: Multiple sets of electric slide rails (4) are provided on the surface of the testing table (1), and the support plate (6) is symmetrically arranged with respect to the central axis of the testing table (1).

3. The detection mechanism for surface defects of forgings according to claim 1, characterized in that: The connecting sleeves (37) are symmetrically arranged with respect to the central axis of the cleaning box (33), and the drive gear (50) drives the two sets of connecting sleeves (37) to rotate via the chain (51).

4. The detection mechanism for surface defects of forgings according to claim 1, characterized in that: The drive assembly includes a limiting groove (7) on the outer wall of the support plate (6) and a small lead screw (8) installed on the inner wall of the support plate (6). A push block (9) adapted to the limiting groove (7) is provided on the outer wall of the small lead screw (8). A first support shaft (10) is rotatably connected to the outer wall of the push block (9). A first drive roller (11) is fixedly connected to the outer wall of the first support shaft (10). A first support block (12) is rotatably connected to the outer wall of one end of the first drive roller (11). A first rotating sleeve (13) adapted to the small lead screw (8) is provided on the inner wall of the first support block (12), and the first rotating sleeve (13) is rotatably connected to the first support block (12). A first connecting gear (14) is threadedly connected to the outer wall of the small lead screw (8). A first connecting ring (15) adapted to the push block (9) is provided on the inner wall of the first connecting gear (14). A first connecting ring (15) adapted to the push block (9) is provided on the outer wall of the first support shaft (10). A second connecting gear (16) is adapted to a first connecting gear (14). A push block (17) adapted to a limit groove (7) is provided on the outer wall of the small lead screw (8). A second support shaft (18) is rotatably connected to the outer wall of the push block (17). A second drive roller (19) is fixedly connected to the outer wall of the second support shaft (18). A second support block (20) is rotatably connected to the outer wall of one end of the second drive roller (19). A second rotating sleeve (21) adapted to the small lead screw (8) is provided on the inner wall of the second support block (20). The second rotating sleeve (21) is rotatably connected to the second support block (20). A first linkage gear (22) is threadedly connected to the outer wall of the small lead screw (8). A second connecting ring (23) adapted to the push block (17) is provided on the inner wall of the first linkage gear (22). A second linkage gear (24) adapted to the first linkage gear (22) is provided on the outer wall of the second support shaft (18).

5. The detection mechanism for surface defects of forgings according to claim 4, characterized in that: The push block (17) includes a push block body (1701). A threaded sleeve (1702) adapted to a small lead screw (8) is provided on the inner wall of the push block body (1701). A retaining ring (1703) is fixedly connected to the outer wall of the threaded sleeve (1702). A movable retaining ring (1704) adapted to the retaining ring (1703) is provided on the inner wall of the push block body (1701). The inner wall of the push block body (1701) is provided with... A reset spring (1705) adapted to a movable retaining ring (1704) is provided on the outer wall of the rear push block body (1701), and through slots (1706) adapted to the movable retaining ring (1704) are provided at equal intervals. An electric push rod (55) is installed on the inner wall of one end of the support plate (6), and a connecting plate (56) is fixedly connected to the outer wall of one end of the electric push rod (55). A top rod (57) adapted to the through slot (1706) is provided at equal intervals on the outer wall of the connecting plate (56).

6. The detection mechanism for surface defects of forgings according to claim 4, characterized in that: The drive assembly also includes a first connecting bevel gear (25) mounted on the outer wall of one end of a small lead screw (8), and a second transmission bevel gear (31) mounted on the outer wall of one end of another set of small lead screws (8). A transmission rod (26) is rotatably connected to the inner wall of one end of the support plate (6). A second connecting bevel gear (27) adapted to the first connecting bevel gear (25) is provided on the outer wall of one end of the transmission rod (26). A transmission shaft (28) is rotatably connected to the inner wall of one end of another set of the support plate (6). A connecting groove (29) adapted to the transmission rod (26) is provided on the inner wall of one end of the transmission shaft (28). A first transmission bevel gear (30) adapted to the second transmission bevel gear (31) is provided on the outer wall of one end of the transmission shaft (28).

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