Buffer box flaw detector

Abstract

The utility model provides a flaw detector for a buffer box. The flaw detector comprises a conveying assembly, a magnetizing assembly and a receiving assembly, the conveying assembly comprises a machine body, a feeding connecting rod, a feeding shifting rod, a discharging connecting rod and a discharging shifting rod, the feeding connecting rod is fixedly connected with a plurality of first rotating shafts and first clamping points, the middle of the feeding shifting rod is rotationally connected to the first rotating shafts, the lower side of the feeding shifting rod can abut against the first clamping points, and the feeding shifting rod is connected with the discharging connecting rod when the feeding shifting rod abuts against the first clamping points. The upper end of the feeding shifting rod can extend to the upper side of the feeding connecting rod. A plurality of second rotating shafts and second clamping points are fixedly connected to the discharging connecting rod, the middle of the discharging shifting rod is rotationally connected to the second rotating shafts, the lower side of the discharging shifting rod can abut against the second clamping points, and when the discharging shifting rod abuts against the second clamping points, the upper end of the discharging shifting rod can extend to the upper side of the discharging connecting rod. The buffer box flaw detection machine provided by the utility model can keep continuous conveying and has higher conveying efficiency, so that the flaw detection machine can have higher working efficiency.

Description

Technical Field

[0001] The utility model relates to the field of flaw detection equipment, in particular to a buffer box flaw detector. Background Art

[0002] The railway freight car in the rail vehicle is composed of a car body, a bogie, a braking device, a coupler buffer device, etc. Among them, the coupler buffer device is used to connect two carriages, and the buffer in the coupler buffer device is used to buffer the force between the two carriages during the vehicle's travel. The buffer box is an important component of the buffer and also needs to withstand the force between the two carriages, so the quality of the buffer box is particularly important.

[0003] The buffer box needs to be subjected to magnetic particle inspection after production is completed or after long-term use. During the current magnetic particle inspection process, a roller-type loading and unloading track is usually used, and the buffer boxes are pushed in or out to the magnetizing equipment one by one by manual or driving cylinders. This loading and unloading method has poor continuity and the working efficiency of the flaw detector is low. Utility Model Content

[0004] Based on the above situation, the main purpose of the utility model is to provide a buffer box flaw detector to solve the problem that the buffer boxes are pushed in or out to the magnetizing equipment one by one manually or by a driving cylinder, and this loading and unloading method has poor continuity and low working efficiency of the flaw detector.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A buffer box flaw detector comprises a conveying component, a magnetizing component and a receiving component, wherein the magnetizing component and the receiving component are located in the middle of the conveying component;

[0007] The conveying assembly includes a body, a loading connecting rod, a loading lever, a unloading connecting rod, and a unloading lever, wherein the loading connecting rod and the unloading connecting rod are slidably connected in the body;

[0008] A plurality of first rotating shafts and first clamping points are fixedly connected to the feeding connecting rod, the middle portion of the feeding lever is rotatably connected to the first rotating shaft, the lower side of the feeding lever can abut against the first clamping point, and when the feeding lever abuts against the first clamping point, the upper end of the feeding lever can extend to the upper side of the feeding connecting rod;

[0009] A plurality of second rotating shafts and second clamping points are fixedly connected to the unloading connecting rod. The middle part of the unloading lever is rotatably connected to the second rotating shaft. The lower side of the unloading lever can abut against the second clamping point. When the unloading lever abuts against the second clamping point, the upper end of the unloading lever can extend to the upper side of the unloading connecting rod.

[0010] Preferably, the first clamping point is located below the first rotating shaft, and the first clamping point is away from the receiving assembly relative to the first rotating shaft;

[0011] The second clamping point is located below the second rotating shaft, and the second clamping point is arranged close to the receiving assembly relative to the second rotating shaft.

[0012] Preferably, the conveying assembly includes a material unloading hook rod;

[0013] The unloading hook rod includes a connecting end and a hooking end, the connecting end is rotatably connected to one end of the unloading connecting rod close to the receiving assembly, the hooking end extends out of the end of the lower connecting rod and extends into the receiving assembly, the side wall of the lower connecting rod is fixed with a first spring, and the upper end of the first spring is fixed to the unloading hook rod.

[0014] Preferably, two bending plates are provided on the material unloading connecting rod, and the two bending plates are located on the side of the material unloading hook rod away from the receiving assembly, the bending plate includes a propulsion part and a spring connecting part, the connecting position between the propulsion part and the spring connecting part is rotatably connected with the spring connecting part, and a second spring is horizontally fixed on the material unloading connecting rod, and one end of the second spring is fixed to the spring connecting part.

[0015] Preferably, a driving rod is fixed to the water bottle under the machine body, and both ends of the driving rod are respectively fixed to the loading connecting rod and the unloading connecting rod. A stepping cylinder is arranged under the machine body, and the telescopic rod of the stepping cylinder is fixed to the driving rod.

[0016] Preferably, the receiving assembly includes a receiving plate, a rack, a gear and a first driving cylinder;

[0017] The gear is rotatably connected to the machine body, the receiving plate is fixed above the gear, the rack is slidably connected to the gear along the length direction of the machine body, the telescopic rod of the first driving cylinder is fixedly connected to the rack, and the rack is meshed with the gear.

[0018] Preferably, a strip groove is provided in the middle of the surface of the receiving plate, and the unloading hook rod can be inserted into the strip groove.

[0019] Preferably, the magnetization assembly comprises an upper magnetic yoke, a lower magnetic yoke and a vertical frame;

[0020] The vertical frame is provided with a clamping claw, which comprises a sliding beam, a swinging beam and a clamping plate;

[0021] The sliding beam is slidably connected to the vertical frame along the vertical direction, and two swing beams are provided. One end of the two swing beams is rotatably connected to the sliding beam, and the two clamps are rotatably connected to the end of the swing beam away from the sliding beam. The ends of the two swing beams away from each other are fixedly connected with connecting rods, and a second driving cylinder is provided between the two connecting rods. The cylinder body of the second driving cylinder and the telescopic rod are rotatably connected to the two connecting rods respectively.

[0022] Preferably, the loading lever is provided with a first hollow groove on the upper side corresponding to the first rotating shaft;

[0023] The upper side of the blanking lever corresponding to the second rotating shaft is provided with a second hollow groove.

[0024] The beneficial effects of the utility model are as follows: when loading, the buffer box is placed between two pairs of loading rods, the loading connecting rod moves toward the receiving assembly, and the loading driving rod contacts the buffer box. Due to the action of the first card point, the loading driving rod cannot rotate when contacting the buffer box, so that the loading driving rod can push the buffer box toward the receiving assembly. In the next step, the loading connecting rod moves away from the receiving assembly, and the subsequent loading driving rod will rotate clockwise to avoid the buffer box when it moves away from the receiving assembly and contacts the buffer box. When the upper end of the loading driving rod does not contact the buffer box, it will rotate counterclockwise, so that the loading driving rod abuts against the first card point, so as to continue to push the buffer box, so that the buffer box can gradually approach the receiving assembly during multiple reciprocating sliding of the loading connecting rod. After completing the magnetic particle flaw detection, the unloading connecting rod moves toward the receiving assembly so that the unloading hook rod can extend between the receiving assemblies. During the process of the unloading hook rod entering the receiving assembly, the unloading hook rod touches the hook end of the second purchase plate of the buffer box and can press down. Subsequently, it returns to its original position through the first spring. When the unloading connecting rod moves back to the receiving assembly, the hook end can pull the buffer box out into the receiving assembly. Subsequently, the same operation as the loading lever rod is performed. The unloading connecting rod moves back and forth, and multiple pairs of unloading hook rods gradually push the buffer box into the receiving assembly to complete unloading. When in use, a buffer box can be added between two adjacent teams of loading lever rods, so that each reciprocating movement of the loading connecting rod can push the buffer box closest to the receiving assembly into the receiving assembly, so that the buffer box can be loaded in a planned continuous step. The conveying assembly of the present application enables the buffer box to load and unload materials continuously and uninterruptedly, can maintain continuous conveying, and has a high conveying efficiency, thereby enabling the flaw detector to have a higher working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a three-dimensional structural schematic diagram of a buffer box flaw detector.

[0026] Figure 2 The utility model is a buffer box flaw detector, which is a structural schematic diagram showing a feeding connection rod.

[0027] Figure 3 This is an enlarged schematic diagram of part A.

[0028] Figure 4 This is an enlarged schematic diagram of part B.

[0029] Figure 5 This is an enlarged schematic diagram of part C.

[0030] Figure 6 The utility model is a buffer box flaw detector, which is a structural schematic diagram of a stepping cylinder.

[0031] Figure 7 A partial schematic diagram of a buffer box flaw detector of the utility model showing a receiving component.

[0032] Figure 8 This is an enlarged schematic diagram of part D.

[0033] Description of the accompanying drawings: 1. conveying assembly; 11. machine body; 12. feeding connecting rod; 121. first rotating shaft; 122. first clamping point; 13. feeding lever; 131. first hollow groove; 14. unloading connecting rod; 141. second rotating shaft; 142. second clamping point; 143. limit point; 15. unloading lever; 151. second hollow groove; 16. unloading hook rod; 161. hooking end; 162. connecting end; 163. first spring; 17. bending plate; 171. propulsion unit; 17 11. semicircular groove; 172. spring connection part; 173. second spring; 18. driving rod; 181. stepping cylinder; 2. magnetizing assembly; 21. upper magnetic yoke; 22. lower magnetic yoke; 23. vertical frame; 24. clamping claw; 241. sliding beam; 242. swing beam; 243. clamping plate; 244. connecting rod; 245. second driving cylinder; 246. servo motor; 3. receiving assembly; 31. receiving plate; 311. strip groove; 32. rack; 33. gear; 34. first driving cylinder. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0035] Reference Figure 1 The utility model provides a buffer box flaw detector, including a conveying component 1, a magnetizing component 2 and a receiving component 3. The magnetizing component 2 and the receiving component 3 are located in the middle of the conveying component 1. The conveying component 1 conveys the buffer box to the top of the receiving component 3. The magnetizing component 2 is used to magnetize or demagnetize the buffer box located above the receiving component 3, so that the buffer box coated with magnetic suspension can clearly show surface damage. The receiving component 3 can adjust the position of the buffer box for the convenience of observation by the staff. After the flaw detection is completed, the material is transported and discharged through the conveying component 1 to complete the flaw detection work.

[0036] Reference Figure 2-Figure 5 The conveying assembly 1 includes a body 11, a loading connecting rod 12, a loading lever 13, a discharging connecting rod 14, a discharging lever 15 and a discharging hook rod 16. The body 11 is fixed on the ground, the magnetization assembly 2 and the receiving assembly 3 are located in the middle of the body 11, the loading connecting rod 12 and the discharging connecting rod 14 are located on both sides of the receiving assembly 3, and both are slidably connected to the body 11 along the length direction of the body 11.

[0037] Reference Figure 2 and Figure 3 There are multiple pairs of loading rods 13, each pair includes two loading rods 13, the two loading rods 13 are arranged on both sides of the loading connecting rod 12, and the multiple pairs of loading rods 13 are evenly arranged along the length direction of the loading connecting rod 12, and the pair of loading rods 13 closest to the receiving component 3 is located at the end of the loading connecting rod 12. The feeding connecting rod 12 is provided with a first rotating shaft 121 corresponding to each feeding lever 13, and the middle part of each feeding lever 13 is rotatably connected to the first rotating shaft 121, so that the feeding lever 13 can swing around the first rotating shaft 121 as the axis; the side wall of the feeding connecting rod 12 is fixed with a first clamping point 122 corresponding to the position of each feeding lever 13, the first clamping point 122 is located below the first rotating shaft 121, and the first clamping point 122 is arranged away from the receiving component 3 relative to the first rotating shaft 121, the first clamping point 122 can abut against the lower side of the feeding lever 13, and when the first clamping point 122 abuts against the lower side of the feeding lever 13, the feeding lever 13 is inclined and its upper end extends to the upper side of the feeding connecting rod 12. A first hollow groove 131 is provided on the upper side of the loading lever 13 corresponding to the first rotating shaft 121, so that the part of the loading lever 13 located on the upper side of the first rotating shaft 121 is lighter, so that the loading lever 13 can be rotated counterclockwise when not under force so that the lower side of the loading lever 13 abuts against the first clamping point 122 for reset. It should be understood that the structure for clamping and resetting the loading lever 13 does not necessarily rely on weight difference, and a torsion spring can also be arranged on the first rotating shaft 121 to achieve the resetting effect of the loading lever 13.

[0038] When loading, the buffer box is placed between the two pairs of loading levers 13, the loading connecting rod 12 moves toward the receiving assembly 3, and the loading lever 13 contacts the buffer box. Due to the action of the first card point 122, the loading lever 13 cannot rotate when contacting the buffer box, so that the loading lever 13 can push the buffer box toward the receiving assembly 3. In the next step, the loading connecting rod 12 moves away from the receiving assembly 3, and the subsequent loading lever 13 moves away from the receiving assembly 3 and contacts the buffer box. It will rotate clockwise to avoid the buffer box, and the upper end of the loading lever 13 When it is not in contact with the buffer box, it will rotate counterclockwise so that the loading rod 13 abuts against the first card point 122 to prepare for continuing to push the buffer box. In this way, during the multiple reciprocating sliding movements of the loading connecting rod 12, the buffer box can gradually approach the receiving component 3. When in use, a buffer box can be added between two adjacent teams of loading rods 13, so that each reciprocating movement of the loading connecting rod 12 can push the buffer box closest to the receiving component 3 into the receiving component 3, so that the buffer box can be loaded in a planned continuous step-by-step manner.

[0039] Reference Figure 4 and Figure 5 The unloading hook rod 16 includes a connecting end 162 and a hooking end 161. The connecting end 162 is rotatably connected to one end of the unloading connecting rod 14 close to the receiving assembly 3. The hooking end 161 extends out of the end of the unloading connecting rod 14 and extends into the receiving assembly 3. The side wall of the unloading connecting rod 14 is fixed with a first spring 163. The upper end of the first spring 163 is fixed to the unloading hook rod 16. Under normal circumstances, the first spring 163 maintains the horizontal state of the unloading hook rod 16. When unloading, the unloading connecting rod 14 moves toward the receiving assembly 3. Since the unloading connecting rod 14 is large in size, it is not convenient to directly extend it into the receiving assembly 3 to take out the buffer box. Therefore, it can drive the unloading hook rod 16 to extend to the receiving assembly 3 to take out the buffer box.

[0040] There are multiple pairs of material discharge levers 15, each pair includes two material discharge levers 15, the two material discharge levers 15 are arranged on both sides of the material discharge connecting rod 14, and the multiple pairs of material discharge levers 15 are evenly arranged along the length direction of the material discharge connecting rod 14. Second rotating shafts 141 are arranged on both sides of the material discharge connecting rod 14 corresponding to each material discharge lever 15, and the middle part of each material discharge lever 15 is rotatably connected to the second rotating shaft 141, so that the material discharge lever 15 can swing around the first rotating shaft 121 as the axis. The side wall of the material unloading connecting rod 14 is fixed with a second clamping point 142, which is located below the second rotating shaft 141, and the second clamping point 142 is arranged close to the receiving assembly 3 relative to the second rotating shaft 141, and the second clamping point 142 can abut against the lower side of the material unloading lever 15. When the second clamping point 142 abuts against the lower side of the material unloading lever 15, the material unloading lever 15 is tilted, and the upper end is located on the upper side of the material unloading connecting rod 14. The material unloading lever 15 is provided with a second hollow groove 151 on the upper side corresponding to the second rotating shaft 141, so that the material unloading lever 15 can return to the abutting position with the second clamping point 142. Similar to the material loading lever 13, the structure in which the material unloading lever 15 returns to the abutting state with the second clamping point 142 does not necessarily have to have a hollow groove, as long as it can be rotated counterclockwise to the position of abutting against the second clamping point 142 without being acted upon by external force.

[0041] When unloading, the unloading connecting rod 14 moves toward the receiving component 3, so that the unloading hook rod 16 can extend between the receiving components 3. In the process of the unloading hook rod 16 entering the receiving component 3, the unloading hook rod 16 touches the hook end 161 of the second purchase plate of the buffer box and can be pressed down. Subsequently, it returns to its original position through the first spring 163. When the unloading connecting rod 14 moves away from the receiving component 3, the hook end 161 can pull the buffer box out into the receiving component 3. Similarly to the working principle of the loading lever 13, the unloading connecting rod 14 moves back and forth, and multiple pairs of unloading hook rods 16 gradually push the buffer box to the receiving component 3 to complete unloading. The conveying component 1 of the present application can enable the buffer box to load and unload materials continuously and uninterruptedly, and can maintain continuous conveying with high conveying efficiency, so that the flaw detector can have higher working efficiency.

[0042] Reference Figure 4Furthermore, the end of the blanking connecting rod 14 close to the receiving assembly 3 is rotatably connected with two bent plates 17, and the two bent plates 17 are respectively arranged on both sides of the blanking connecting rod 14, and the bent plate 17 is located on the side of the blanking hook rod 16 away from the receiving assembly 3. The bent plate 17 includes a propulsion portion 171 and a spring connection portion 172, and the propulsion portion 171 and the spring connection portion 172 are vertically arranged, and the propulsion portion 171 is located on the upper side of the spring connection portion 172, and the connection position of the propulsion portion 171 and the spring connection portion 172 is rotatably connected to the blanking connecting rod 14. A second spring 173 is horizontally fixed to the blanking connecting rod 14, and one end of the second spring 173 is fixed to the spring connection portion 172. Under normal conditions, the second spring 173 can push one end of the propulsion portion 171 to extend to the upper side of the blanking connecting rod 14. The bending plate 17 can cooperate with the material discharge hook rod 16 to bring the material out from above the receiving assembly 3. Since the material discharge hook rod 16 is located at the end of the material discharge connecting rod 14, the material discharge lever 15 with a long length is not convenient to be arranged near the material discharge hook rod 16, so the bending plate 17 with a bending shape is used to cooperate with the material discharge hook rod 16. As an embodiment, the side wall of the material discharge connecting rod 14 is fixedly connected to the limiting point 143 at the position corresponding to the propulsion part 171, and a semicircular groove 1711 is opened on the propulsion part 171. The limiting point 143 can be inserted into the limiting groove 143 to prevent the bending plate 17 from rotating excessively and causing the second spring 173 to fail.

[0043] Reference Figure 6 As an embodiment, a driving rod 18 is horizontally arranged below the machine body 11. The driving rod 18 is a frame-shaped rod. The two ends of the driving rod 18 are respectively fixed to the loading connecting rod 12 and the unloading connecting rod 14. A stepping cylinder 181 is fixed below the machine body 11. The telescopic rod of the stepping cylinder 181 is fixed to the driving rod 18. When the stepping cylinder 181 is working, it can drive the loading connecting rod 12 and the unloading connecting rod 14 to move synchronously, thereby realizing the synchronous operation of loading and unloading, and further improving the movement efficiency of the buffer box.

[0044] Reference Figure 7 and Figure 8 The receiving assembly 3 includes a receiving plate 31, a rack 32, a gear 33 and a first driving cylinder 34. The gear 33 is rotatably connected to the middle part of the body 11. The receiving plate 31 is fixed above the gear 33. The rack 32 is slidably connected to the body 11 along the length direction of the body 11. The rack 32 and the gear 33 can mesh. The telescopic rod of the first driving cylinder 34 is fixed to the rack 32. When the first driving cylinder 34 is working, it can drive the rack 32 to slide, thereby driving the gear 33 to rotate, so that the receiving plate 31 rotates. The rotation of the receiving plate 31 can drive the buffer box above the receiving plate 31 to rotate, so that it can be observed from all directions whether there are scars on the surface of the buffer box.

[0045] As an embodiment, a strip groove 311 is opened in the middle of the surface of the receiving plate 31, and two material discharge hook rods 16 can be inserted into the strip groove 311, so that the buffer box can be smoothly hooked to discharge the material.

[0046] The magnetization assembly 2 includes an upper magnetic yoke 21, a lower magnetic yoke 22 and a vertical frame 23, and the upper magnetic yoke 21 and the lower magnetic yoke 22 are both arranged vertically. The lower magnetic yoke 22 is located between the receiving plates 31, and the upper end of the lower magnetic yoke 22 extends to the surface of the receiving plate 31. The vertical frame 23 is fixed on one side of the body 11. The upper magnetic yoke 21 is located above the lower magnetic yoke 22. The upper magnetic yoke 21 can slide in the vertical direction on one side of the vertical frame 23 to contact the buffer box for electrification. When the buffer box is located above the receiving plate 31, the magnetic suspension can be sprayed first, and then the upper magnetic yoke 21 is moved down. The upper and lower magnetic yokes 22 are electrified to magnetize the buffer box to perform flaw detection on the buffer box. After the observation is completed, the buffer box is demagnetized, and the buffer box is sent out by the conveying assembly 1 to complete the flaw detection work. It should be noted that the electromagnetism structure and circuit of the upper magnetic yoke 21 and the lower magnetic yoke 22 are both prior art, and this application will not repeat them.

[0047] As an embodiment, a clamping jaw 24 is provided on the vertical frame 23, and the clamping jaw 24 includes a sliding beam 241, a swinging beam 242, and a clamping plate 243. The sliding beam 241 is slidably connected to one side of the vertical frame 23 in the vertical direction, and two swinging beams 242 are provided, one end of each of the two swinging beams 242 is rotationally connected to the sliding beam 241, and the two clamping plates 243 are rotationally connected to the end of the swinging beam 242 away from the sliding beam 241. The ends of the two swinging beams 242 away from each other are fixedly connected with a connecting rod 244, and the ends of the two connecting rods 244 away from the swinging beam 242 are provided with a second driving cylinder 245, one end of the cylinder body of the second driving cylinder 245 and one end of the telescopic rod are rotationally connected to the two connecting rods 244, respectively, and the axis direction of the rotating shaft is the vertical direction. When the telescopic rod of the second driving cylinder 245 is extended, the two swinging beams 242 can be clamped in a direction of approaching each other, and the buffer box is clamped up so that the buffer box can be observed. Furthermore, a servo motor 246 is fixed on one of the swing beams 242, and the servo motor 246 can be used to drive the rotation of the clamping plate 243. When the clamping jaws 24 are clamped, the servo motor 246 drives the clamping plate 243 to rotate, thereby driving the buffer box to rotate, so that the scratches on the surface of the buffer box can be further observed. It should be noted that the connection structure between the output shaft of the servo motor 246 and the clamping plate 243 and the rotating shaft of the swing beam 242 is not limited, as long as the servo motor 246 can drive the clamping plate 243 to rotate, this structure can be directly realized by those skilled in the art through existing technologies, and this application will not be illustrated or described in detail.

[0048] The implementation principle of the utility model is as follows: when loading, the buffer box is placed between two pairs of adjacent loading levers 13. With the push of the loading lever 13, the buffer box can be pushed gradually into the upper part of the receiving plate 31, and the upper magnetic yoke 21 descends and contacts the lower magnetic yoke 22 and the buffer box. Subsequently, the buffer box is subjected to processes such as liquid spraying and magnetization. The workpiece flaws are observed from multiple angles through the clamping claws 24 and the rotating clamping plate 243. After the observation is completed, the demagnetization work is performed, and the workpiece is hooked out by the unloading hook rod 16. Subsequently, with the swing of the unloading connecting rod 14, the workpiece is gradually sent out of the flaw detector by the unloading lever 15 to complete the flaw detection work.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A buffer box flaw detector, characterized in that: It comprises a conveying component (1), a magnetizing component (2) and a receiving component (3), wherein the magnetizing component (2) and the receiving component (3) are located in the middle of the conveying component (1); The conveying assembly (1) comprises a machine body (11), a material loading connecting rod (12), a material loading lever (13), a material unloading connecting rod (14), and a material unloading lever (15); the material loading connecting rod (12) and the material unloading connecting rod (14) are slidably connected in the machine body (11); A plurality of first rotating shafts (121) and first clamping points (122) are fixedly connected to the feeding connecting rod (12); the middle portion of the feeding lever (13) is rotatably connected to the first rotating shaft (121); the lower side of the feeding lever (13) can abut against the first clamping point (122); when the feeding lever (13) abuts against the first clamping point (122), the upper end of the feeding lever (13) can extend to the upper side of the feeding connecting rod (12); A plurality of second rotating shafts (141) and second clamping points (142) are fixedly connected to the material unloading connecting rod (14); the middle portion of the material unloading lever (15) is rotatably connected to the second rotating shaft (141); the lower side of the material unloading lever (15) can abut against the second clamping point (142); when the material unloading lever (15) is in abutment with the second clamping point (142), the upper end of the material unloading lever (15) can extend to the upper side of the material unloading connecting rod (14).

2. A buffer box flaw detector as claimed in claim 1, characterized in that: The first clamping point (122) is located below the first rotating shaft (121), and the first clamping point (122) is far away from the receiving component (3) relative to the first rotating shaft (121); The second clamping point (142) is located below the second rotating shaft (141), and the second clamping point (142) is arranged close to the receiving assembly (3) relative to the second rotating shaft (141).

3. A buffer box flaw detector as claimed in claim 1, characterized in that: The conveying assembly (1) comprises a material unloading hook rod (16); The material unloading hook rod (16) comprises a connecting end (162) and a hooking end (161), wherein the connecting end (162) is rotatably connected to one end of the material unloading connecting rod (14) close to the receiving assembly (3), and the hooking end (161) extends out of the end of the material unloading connecting rod and extends into the receiving assembly (3). A first spring (163) is fixedly connected to the side wall of the material unloading connecting rod (14), and the upper end of the first spring (163) is fixed to the material unloading hook rod (16).

4. A buffer box flaw detector as claimed in claim 3, characterized in that: Two bending plates (17) are provided on the material unloading connecting rod (14), and the two bending plates (17) are located on the side of the material unloading hook rod (16) away from the receiving assembly (3). The bending plate (17) includes a propulsion part (171) and a spring connecting part (172). The connecting position of the propulsion part (171) and the spring connecting part (172) is rotatably connected to the spring connecting part (172). A second spring (173) is horizontally fixed to the material unloading connecting rod (14), and one end of the second spring (173) is fixed to the spring connecting part (172).

5. A buffer box flaw detector as claimed in claim 1, characterized in that: A driving rod (18) is fixed to the water bottle below the machine body (11), and two ends of the driving rod (18) are respectively fixed to the loading connecting rod (12) and the unloading connecting rod (14). A stepping cylinder (181) is arranged below the machine body (11), and a telescopic rod of the stepping cylinder (181) is fixed to the driving rod (18).

6. A buffer box flaw detector as claimed in claim 3, characterized in that: The receiving assembly (3) comprises a receiving plate (31), a rack (32), a gear (33) and a first driving cylinder (34); The gear (33) is rotatably connected to the machine body (11), the receiving plate (31) is fixed above the gear (33), the rack (32) is slidably connected to the gear (33) along the length direction of the machine body (11), the telescopic rod of the first driving cylinder (34) is fixedly connected to the rack (32), and the rack (32) is meshed with the gear (33).

7. A buffer box flaw detector as claimed in claim 6, characterized in that: A strip groove (311) is provided in the middle of the surface of the receiving plate (31), and the unloading hook rod (16) can be inserted into the strip groove (311).

8. A buffer box flaw detector as claimed in claim 6, characterized in that: The magnetization assembly (2) comprises an upper magnetic yoke (21), a lower magnetic yoke (22) and a vertical frame (23); A clamping claw (24) is provided on the vertical frame (23), and the clamping claw (24) comprises a sliding beam (241), a swinging beam (242) and a clamping plate (243); The sliding beam (241) is slidably connected to the vertical frame (23) along the vertical direction, and two swing beams (242) are provided. One end of the two swing beams (242) is rotatably connected to the sliding beam (241), and the two clamping plates (243) are rotatably connected to the end of the swing beam (242) away from the sliding beam (241). The ends of the two swing beams (242) away from each other are fixedly connected with a connecting rod (244), and a second driving cylinder (245) is provided between the two connecting rods (244), and the cylinder body of the second driving cylinder (245) and the telescopic rod are respectively rotatably connected to the two connecting rods (244).

9. A buffer box flaw detector as claimed in claim 1, characterized in that: The loading lever (13) is provided with a first hollow groove (131) on the upper side corresponding to the first rotating shaft (121); The unloading lever (15) is provided with a second hollow groove (151) on the upper side corresponding to the second rotating shaft (141).

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