Follow-up self-adaptive online full-automatic grinding device for large-diameter circumferential workpieces

Abstract

The invention relates to the technical field of grinding devices, in particular to a follow-up self-adaptive online large-diameter circumferential workpiece full-automatic grinding device which comprises a bottom plate, and a stud roller is arranged on the left side of the bottom plate; and a grinding mechanism used for grinding redundant materials of the column nails subjected to repair welding on the column nail roller is further arranged, the grinding mechanism comprises a grinding motor arranged on the right rear side of the column nail roller, and a connecting plate is fixedly installed at the rear end of the grinding motor. The electric push rod is started to drive the anti-falling blocks on the two sides to get close to each other, the anti-falling blocks are clamped and fixed to the surface of the column nail, the arranged anti-falling blocks and inclined clamping grooves facilitate limiting of the column nail, the inclined clamping grooves can be clamped on lines on the outer surface of the column nail, and the situation that the column nail is too large in pressure of an abrasion block is reduced; therefore, the situation that the column nail is unstable after being ground is avoided, and normal use of the column nail cannot be affected after the column nail is ground.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to a follow-up, self-adaptive, online fully automatic grinding device for large-diameter circular workpieces. Background Art

[0002] The roller press is designed according to the principle of material bed grinding. It consists of two extrusion rollers that rotate synchronously in opposite directions, one fixed roller and one movable roller. Main features: high pressure, full speed, full material, material bed crushing. The material is fed from the top of the two rollers and is continuously brought into the roller space by the extrusion rollers. After being subjected to the high pressure of 100-150MPa, it becomes a dense cake and is discharged from the bottom of the machine. The wear mechanism of the roller is the result of the high stress abrasive wear of the roller surface and the fatigue wear of the sub-surface of the roller surface. The shallow crack damage layer is about 10mm away from the roller surface, and the deep crack is about 20-30mm away from the roller surface. Some parts are even as deep as 50-60mm. As the use time increases, the cracks continue to spread outward along the circumference of the wheel, causing the roller to peel off locally or in pieces. In addition to normal wear, if metal foreign matter such as bolts and iron blocks enter the material layer, it will also cause damage to the roller surface, which needs to be repaired. Drilled glue-mounted inlaid clearance fit carbide stud rollers are also a type of stud roller.

[0003] After searching, the patent with application number CN202310584958.9 discloses "a method for surfacing welding of stud wheels and a welding device thereof", including a welding robot and a portal frame. The welding robot is located on one side of the portal frame, and the portal frame is equipped with a camera, a stud roller and a cleaning assembly in sequence from top to bottom.

[0004] However, after the above device welds the stud, there is likely to be excess welding material on the stud surface that needs to be ground, and the existing device lacks a grinding mechanism, which affects subsequent use. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that after the column nails are welded, there is easily excess welding material on the surface of the column nails that needs to be ground, and the existing devices lack a grinding mechanism, which affects the subsequent use. A follow-up and adaptive online large-diameter circular workpiece fully automatic grinding device is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A follow-up and adaptive online large-diameter circumferential workpiece fully automatic grinding device comprises a bottom plate, and a pin roller is arranged on the left side of the bottom plate; There is also a grinding mechanism for grinding the redundant materials of the studs after repair welding on the stud roller. The grinding mechanism includes a grinding motor arranged at the right rear side of the stud roller. A connecting plate is fixedly installed at the rear end of the grinding motor. A hydraulic cylinder is fixedly installed at the rear end of the connecting plate. A rotating frame is fixedly installed on the outer side of the hydraulic cylinder. Arc-shaped limiting pieces are symmetrically arranged on the left and right sides of the front side of the grinding block of the grinding motor. Through grooves are opened at the ends of the arc-shaped limiting pieces close to each other. A rotating motor is fixedly installed at the right end of the rotating frame. A fixing plate is fixedly installed at the right end of the rotating motor. There is also a disassembly and assembly mechanism for quickly disassembling and assembling the fixing plate. The disassembly and assembly mechanism includes a sliding plate slidably installed at the lower end of the fixing plate. The lower end of the sliding plate is slidably installed on the bottom plate. A threaded rod is installed on the middle part of the sliding plate in a threaded manner. The threaded rod is rotatably installed on the bottom plate.

[0007] Preferably, support rods are slidably installed at the ends of the arc-shaped limiting pieces away from each other. A first spring is fixedly installed at the upper end of the support rod. A magnetic strip is fixedly installed at the upper end of the first spring. The ends of the magnetic strips close to each other are fixedly connected to the arc-shaped limiting pieces on both sides respectively. And a magnetic block rod is arranged above the magnetic strip.

[0008] Preferably, brackets are slidably installed at the ends of the support rods away from each other. The brackets are slidably installed through the connecting plate.

[0009] Preferably, a second spring is fixedly installed at the rear end of the support rod. The rear end of the second spring is fixedly connected to the bracket. Springs are fixedly installed at the ends of the brackets close to each other. The other ends of the springs are fixedly connected to the connecting plate.

[0010] Preferably, passive rods are fixedly installed at the ends of the brackets away from each other. An inclined block plate is arranged in front of the passive rod. The inclined block plate is fixedly connected to the rotating frame. And the magnetic block rod is fixedly connected to the upper end of the inclined block plate.

[0011] Preferably, anti-drop blocks are slidably installed at the rear ends of the arc-shaped limiting pieces. Oblique card slots are opened at the ends of the anti-drop blocks close to each other. Electric push rods are fixedly installed at the upper ends of the anti-drop blocks. The electric push rods are fixedly connected to the ends of the arc-shaped limiting pieces away from each other.

[0012] Preferably, positioning rods are symmetrically and fixedly installed on the left and right sides of the front end of the connecting plate. And positioning holes corresponding to the positioning rods are opened in the middle parts of the anti-drop blocks.

[0013] Preferably, a guide rod is fixedly installed at the front side of the right end of the rotating frame. A stabilizing ring is fixedly installed at the left end of the fixing plate corresponding to the guide rod. The guide rod is slidably installed through the stabilizing ring.

[0014] Preferably, a cylinder is fixedly installed at the front side of the left end of the rotating frame. A stabilizing plate is fixedly installed at the right end of the cylinder corresponding to the stabilizing ring.

[0015] Preferably, a clamping plate is abutted and attached to the lower side of the rear end of the fixing plate. A connecting rod is fixedly installed at the right end of the clamping plate. The middle part of the connecting rod is slidably installed through the sliding plate, and a fourth spring is sleeved on the outer side of the connecting rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, by rotating the threaded rod, the sliding plate slides leftward (towards the stud roller) on the bottom plate. The sliding plate drives the fixing plate, the rotating motor and the rotating frame to slide leftward synchronously. The rotating frame drives the hydraulic cylinder and the grinding motor to move synchronously. Then, the rotating motor is started to drive the rotating frame, the hydraulic cylinder, the connecting plate and the grinding motor to rotate synchronously, so that the grinding block is aligned with the stud that needs to be ground after welding. The hydraulic cylinder is started to drive the grinding motor to approach the stud to be ground. At the same time, the grinding motor is started to drive the grinding block to rotate. The grinding block contacts the stud, which is convenient for grinding the redundant parts after the stud is welded, so as to ensure the automatic grinding of the studs on the stud roller, improve the work efficiency and save labor.

[0017] 2. In the present invention, when the connecting plate moves towards the stud, it will also drive the bracket, the passive rod, the support rod and the arc-shaped limiting piece to move synchronously. And the passive rod will be extruded by the inclined surface thrust of the inclined block plate, forcing the two passive rods, the bracket, the support rod and the arc-shaped limiting piece to approach each other synchronously. The bracket will slide on the connecting plate, compressing the third spring. The arc-shaped limiting piece will gradually clamp on both sides of the stud to be ground. When the grinding block contacts and grinds the stud, it will first abut and clamp on the surface of the stud roller. After the clamping is completed, the passive rod just slides to the horizontal plane of the mutually approaching surface of the inclined block plate and will not continue to push the two passive rods, the bracket, the support rod and the arc-shaped limiting piece to approach each other. Thus, the mutually approaching sides of the arc-shaped limiting pieces will clamp and limit both sides of the stud, avoiding the situation that when the redundant and irregular welding objects on the stud are ground by the grinding block during the subsequent grinding of the stud, the stud will be pushed and inclined and deformed, thereby ensuring the quality of the stud grinding.

[0018] 3. In the present invention, after the stud is clamped and limited, the front end of the arc-shaped limiting piece will abut and fit on the stud roller. As the connecting plate, the bracket and the grinding motor continue to move forward, the support rod and the arc-shaped limiting piece will adaptively slide on the bracket, compressing the second spring. When the two arc-shaped limiting pieces approach each other to clamp the stud, they will drive the magnetic strip to move synchronously. The magnetic strip will pass under the magnetic block rod and, under the action of magnetic repulsion, will drive the magnetic strip and the arc-shaped limiting piece to rotate on the support rod, compressing the first spring. This is convenient for the arc-shaped limiting piece to adaptively avoid the redundant welding slag protrusions on the stud surface when clamping the stud, preventing the situation of blocking and hindering the arc-shaped limiting piece from clamping stably on the stud surface. In addition, the opened through groove also reduces the clamping area between the arc-shaped limiting piece and the stud surface, thereby also reducing the situation of the arc-shaped limiting piece clamping on the welding slag protrusions, thus ensuring the subsequent grinding quality of the stud.

[0019] 4. In the present invention, after the arc-surface limit plate has clamped the column nail, the electric push rod is started to drive the anti-drop blocks on both sides to approach each other, so that the anti-drop blocks are clamped and fixed on the surface of the column nail. The anti-drop blocks and oblique grooves are convenient for limiting the column nail. The oblique grooves will be stuck on the texture of the outer surface of the column nail, reducing the excessive pressure of the grinding block on the column nail, which causes the glued column nail to sink into the inside of the column nail roller and become unstable after grinding, thereby ensuring that the column nail will not be affected in its normal use after grinding.

[0020] 5. In the present invention, when the anti-drop blocks are close to each other and clamp the column nail, the positioning hole will keep the same level with the positioning rod. When the connecting plate moves forward, it will also drive the positioning rod to move forward synchronously. When the grinding block grinds the column nail, the positioning rod will also be inserted into the positioning hole, avoiding the failure of the anti-drop blocks on both sides to collapse outward and fail when the column nail is subjected to excessive pressure from the grinding block, thereby ensuring the firm clamping of the anti-drop blocks.

[0021] 6. In the present invention, when the rotating frame rotates, it will also drive the guide rod to rotate in the stabilizing ring, thereby ensuring the stability of the rotating frame when rotating to adjust the angle of the grinding motor.

[0022] 7. In the present invention, the starting cylinder drives the stabilizing plate to approach the stabilizing ring, and the stabilizing plate is tightly abutted against the stabilizing ring, which ensures the stability of the grinding motor when grinding the column nail when the rotating frame is stationary, thereby ensuring the grinding quality of the column nail.

[0023] 8. In the present invention, the connecting rod is pulled outward to separate the clamping plate from the fixed plate, and then the fixed plate is slid out of the slide plate to disassemble the entire grinding device, which facilitates the convenient disassembly and assembly of the grinding device and will not affect the normal use of the post nail roller after grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall front right three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall rear right three-dimensional structure of the present invention; Figure 3 For the present invention Figure 1 An enlarged structural diagram of the connection between the middle rotating frame, hydraulic cylinder and grinding motor; Figure 4 For the present invention Figure 2 An enlarged structural diagram of the connection between the middle rotating frame, hydraulic cylinder and grinding motor; Figure 5 For the present invention Figure 3 The structural diagram at A in the middle; Figure 6 For the present invention Figure 3 Schematic diagram of the structure at B in the middle; Figure 7 For the present invention Figure 1 is a schematic structural diagram of the C position in the present invention; Figure 8 For the present invention Figure 2 is a schematic structural diagram of the D position in the present invention; Figure 9 For the present invention Figure 4 is a schematic structural diagram of the E position in the present invention; Figure 10 is a schematic plan view of the anti - dropping block and the positioning hole in the present invention; In the figure: 1. Base plate; 2. Column nail roller; Grinding mechanism: 3. Grinding motor; 4. Connecting plate; 5. Hydraulic cylinder; 6. Rotating frame; 7. Arc - shaped limiting piece; 701. Through - slot; 8. Support rod; 9. Spring 1; 10. Magnetic strip; 11. Magnet rod; 12. Bracket; 13. Spring 2; 14. Spring 3; 15. Passive rod; 16. Inclined block plate; 17. Anti - dropping block; 1701. Inclined card slot; 18. Electric push rod; 19. Positioning rod; 20. Positioning hole; 21. Rotating motor; 22. Fixed plate; 23. Guide rod; 24. Stabilizing ring; 25. Stabilizing plate; 26. Cylinder; Disassembly and assembly mechanism: 27. Slide plate; 28. Threaded rod; 29. Clamping plate; 30. Connecting rod; 31. Spring 4. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] Refer to Figures 1 - 10, a follow-up and adaptive online full-automatic grinding device for large-diameter circumferential workpieces, comprising a bottom plate 1, on the left side of the bottom plate 1 there is a stud roller 2; there is also a grinding mechanism for grinding the redundant materials of the studs after repair welding on the stud roller 2. The grinding mechanism includes a grinding motor 3 arranged at the right rear side of the stud roller 2. A connecting plate 4 is fixedly installed at the rear end of the grinding motor 3. A hydraulic cylinder 5 is fixedly installed at the rear end of the connecting plate 4. A rotating frame 6 is fixedly installed on the outer side of the hydraulic cylinder 5. On the front side of the grinding block of the grinding motor 3, arc-shaped limiting pieces 7 are symmetrically arranged on the left and right. Through grooves 701 are opened at the ends of the arc-shaped limiting pieces 7 close to each other. A rotating motor 21 is fixedly installed at the right end of the rotating frame 6. A fixing plate 22 is fixedly installed at the right end of the rotating motor 21. Support rods 8 are slidably installed at the ends of the arc-shaped limiting pieces 7 away from each other. A first spring 9 is fixedly installed at the upper end of the support rod 8. A magnetic strip 10 is fixedly installed at the upper end of the first spring 9. The ends of the magnetic strips 10 close to each other are respectively fixedly connected to the arc-shaped limiting pieces 7 on both sides. And a magnetic block rod 11 is arranged above the magnetic strip 10. Support brackets 12 are slidably installed at the ends of the support rods 8 away from each other. The support brackets 12 are slidably installed through the connecting plate 4. A second spring 13 is fixedly installed at the rear end of the support rod 8. The rear end of the second spring 13 is fixedly connected to the support bracket 12. Third springs 14 are fixedly installed at the ends of the support brackets 12 close to each other. The other ends of the third springs 14 are fixedly connected to the connecting plate 4. Passive rods 15 are fixedly installed at the ends of the support brackets 12 away from each other. An inclined block plate 16 is arranged in front of the passive rod 15. The inclined block plate 16 is fixedly connected to the rotating frame 6. And the magnetic block rod 11 is fixedly connected to the upper end of the inclined block plate 16. Anti-drop blocks 17 are slidably installed at the rear ends of the arc-shaped limiting pieces 7. Inclined card slots 1701 are opened at the ends of the anti-drop blocks 17 close to each other. Electric push rods 18 are fixedly installed at the upper ends of the anti-drop blocks 17. The electric push rods 18 are fixedly connected to the ends of the arc-shaped limiting pieces 7 away from each other. Positioning rods 19 are symmetrically fixedly installed on the front end of the connecting plate 4 on the left and right. And positioning holes 20 corresponding to the positioning rods 19 are opened in the middle of the anti-drop blocks 17. A guide rod 23 is fixedly installed at the front side of the right end of the rotating frame 6. A stabilizing ring 24 corresponding to the guide rod 23 is fixedly installed at the left end of the fixing plate 22. The guide rod 23 is slidably installed through the stabilizing ring 24. A cylinder 26 is fixedly installed at the front side of the left end of the rotating frame 6. A stabilizing plate 25 corresponding to the stabilizing ring 24 is fixedly installed at the right end of the cylinder 26; During operation, rotate the threaded rod 28 to drive the slide plate 27 to slide leftward (towards the stud roller 2) on the bottom plate 1. The slide plate 27 drives the fixed plate 22, the rotary motor 21, and the rotating frame 6 to slide leftward synchronously. The rotating frame 6 drives the hydraulic cylinder 5 and the grinding motor 3 to move synchronously. Then start the rotary motor 21 to drive the rotating frame 6, the hydraulic cylinder 5, the connecting plate 4, and the grinding motor 3 to rotate synchronously, so that the grinding block is aligned with the stud that needs to be ground after welding. Start the hydraulic cylinder 5 to drive the grinding motor 3 to approach the stud to be ground. At the same time, start the grinding motor 3 to drive the grinding block to rotate. The grinding block contacts the stud, which is convenient for grinding the redundant parts after the stud is welded, thereby ensuring the automatic grinding of the studs on the stud roller 2, improving work efficiency, and saving labor. At the same time, when the connecting plate 4 moves towards the stud, it will also drive the bracket 12, the passive rod 15, the support rod 8, and the arc-shaped limiting piece 7 to move synchronously. And the passive rod 15 will be squeezed by the inclined surface thrust of the inclined block plate 16, forcing the two passive rods 15, the bracket 12, the support rod 8, and the arc-shaped limiting piece 7 to approach each other synchronously. The bracket 12 will slide on the connecting plate 4, compressing the third spring 14. The arc-shaped limiting piece 7 will gradually clamp on both sides of the stud to be ground. When the grinding block contacts and grinds the stud, it will first abut and clamp on the surface of the stud roller 2. After the clamping is completed, the passive rod 15 just slides to the horizontal plane of the mutually approaching side of the inclined block plate 16, and will not continue to push the two passive rods 15, the bracket 12, the support rod 8, and the arc-shaped limiting piece 7 to approach each other. Thus, the mutually approaching sides of the arc-shaped limiting pieces 7 will clamp and limit both sides of the stud, avoiding the situation that when the redundant irregular welded objects on the stud are ground by the grinding block during the subsequent grinding of the stud, the stud will be squeezed and pushed to tilt and shift, and then deform, thereby ensuring the quality of stud grinding. After the stud is clamped and limited, the front end of the arc-shaped limiting piece 7 will abut and fit on the stud roller 2. As the connecting plate 4, the bracket 12, and the grinding motor 3 continue to move forward, the support rod 8 and the arc-shaped limiting piece 7 will adaptively slide on the bracket 12, compressing the second spring 13. When the two arc-shaped limiting pieces 7 approach each other to clamp the stud, they will drive the magnetic strip 10 to move synchronously. The magnetic strip 10 will pass under the magnetic block rod 11 and, under the action of magnetic repulsion, will drive the magnetic strip 10 and the arc-shaped limiting piece 7 to rotate on the support rod 8, compressing the first spring 9, which is convenient for the arc-shaped limiting piece 7 to adaptively avoid the redundant welding slag protrusions on the stud surface when clamping the stud, and prevent the situation that the arc-shaped limiting piece 7 is blocked and hindered from clamping stably on the stud surface. In addition, the opened through groove 701 also reduces the clamping area between the arc-shaped limiting piece 7 and the stud surface, thereby also reducing the situation that the arc-shaped limiting piece 7 clamps on the welding slag protrusions, thus ensuring the subsequent grinding quality of the stud. After the arc-shaped limiting piece 7 clamps the stud, start the electric push rod 18 to drive the two anti-drop blocks 17 to approach each other, so that the anti-drop blocks 17 clamp and fix on the surface of the stud. The provided anti-drop blocks 17 and the inclined card slots 1701 are convenient for limiting the stud.The oblique slot 1701 will be stuck on the texture of the outer surface of the column nail, reducing the excessive pressure of the grinding block on the column nail, which will cause the glued column nail to sink into the column nail roller 2 and become unstable after grinding, thereby ensuring that the column nail will not be affected in normal use after grinding. When the anti-drop blocks 17 are close to each other and clamp the column nail, the positioning hole 20 will be kept at the same level as the positioning rod 19. When the connecting plate 4 moves forward, it will also drive the positioning rod 19 to move forward synchronously, so that when the grinding block grinds the column nail, the positioning rod 19 will also be inserted into the positioning hole 20, avoiding the failure of the anti-drop blocks 17 on both sides to fail when the column nail is subjected to excessive pressure from the grinding block, resulting in the failure of the anti-drop blocks 17 on both sides to collapse outward, thereby ensuring the firm clamping of the anti-drop blocks 17. When the rotating frame 6 rotates, it will also drive the guide rod 23 to rotate in the stabilizing ring 24, ensuring the stability of the rotating frame 6 when it rotates to adjust the angle of the grinding motor 3.

[0028] As an embodiment of the present invention, a disassembly mechanism for quickly disassembling and assembling the fixed plate 22 is further provided, the disassembly mechanism comprising a slide plate 27 slidably mounted with the lower end of the fixed plate 22, the lower end of the slide plate 27 is slidably mounted on the bottom plate 1, a threaded rod 28 is threadedly mounted on the middle part of the slide plate 27, the threaded rod 28 is rotatably mounted on the bottom plate 1, a clamping plate 29 is abutted and fitted on the lower side of the rear end of the fixed plate 22, a connecting rod 30 is fixedly mounted on the right end of the clamping plate 29, the middle part of the connecting rod 30 penetrates and is slidably mounted on the slide plate 27, and a spring 4 31 is sleeved on the outer side of the connecting rod 30; During operation, the cylinder 26 is started to drive the stabilizing plate 25 to approach the stabilizing ring 24, and the stabilizing plate 25 is tightly abutted against the stabilizing ring 24, ensuring the stability of the grinding motor 3 when grinding the column nails when the rotating frame 6 is stationary, thereby ensuring the grinding quality of the column nails, and pulling the connecting rod 30 outward to drive the clamping plate 29 to separate from the fixed plate 22, and then sliding the fixed plate 22 out of the slide plate 27, the entire grinding device can be disassembled, which is convenient for the convenient disassembly and assembly of the grinding device and will not affect the normal use of the column nail roller 2 after grinding.

[0029] Working principle: When the present invention is in use, rotate the threaded rod 28 to drive the sliding plate 27 to slide leftward (towards the stud roller 2) on the bottom plate 1. The sliding plate 27 drives the fixed plate 22, the rotating motor 21 and the rotating frame 6 to slide leftward synchronously. The rotating frame 6 drives the hydraulic cylinder 5 and the grinding motor 3 to move synchronously. Then start the rotating motor 21 to drive the rotating frame 6, the hydraulic cylinder 5, the connecting plate 4 and the grinding motor 3 to rotate synchronously, so that the grinding block is aligned with the stud that needs to be ground after welding. Start the hydraulic cylinder 5 to drive the grinding motor 3 to approach the stud to be ground. At the same time, start the grinding motor 3 to drive the grinding block to rotate. The grinding block contacts the stud, which is convenient for grinding the redundant parts after the stud is welded, so as to ensure the automatic grinding of the studs on the stud roller 2, improve the work efficiency and save labor. At the same time, when the connecting plate 4 moves towards the stud, it will also drive the bracket 12, the passive rod 15, the support rod 8 and the arc-shaped limiting piece 7 to move synchronously. And the passive rod 15 will be squeezed by the inclined surface thrust of the inclined block plate 16, forcing the two passive rods 15, the bracket 12, the support rod 8 and the arc-shaped limiting piece 7 to approach each other synchronously. The bracket 12 will slide on the connecting plate 4, compressing the third spring 14. The arc-shaped limiting piece 7 will gradually clamp on both sides of the stud to be ground. When the grinding block contacts and grinds the stud, it will first abut and clamp on the surface of the stud roller 2. After the clamping is completed, the passive rod 15 just slides to the horizontal plane of the mutually approaching side of the inclined block plate 16 and will not continue to push the two passive rods 15, the bracket 12, the support rod 8 and the arc-shaped limiting piece 7 to approach each other. Thus, the mutually approaching sides of the arc-shaped limiting pieces 7 will clamp and limit both sides of the stud, avoiding the situation that when the redundant irregular welding on the stud is ground by the grinding block during the subsequent grinding of the stud, the stud will be squeezed and pushed to tilt and shift, and then deformed. Thus, the quality of stud grinding is guaranteed. After the stud is clamped and limited, the front end of the arc-shaped limiting piece 7 will abut and fit on the stud roller 2. As the connecting plate 4, the bracket 12 and the grinding motor 3 continue to move forward, the support rod 8 and the arc-shaped limiting piece 7 will adaptively slide on the bracket 12, compressing the second spring 13. When the two arc-shaped limiting pieces 7 approach each other to clamp the stud, they will drive the magnetic strip 10 to move synchronously. The magnetic strip 10 will pass under the magnetic block rod 11 and, under the action of magnetic repulsion, will drive the magnetic strip 10 and the arc-shaped limiting piece 7 to rotate on the support rod 8, compressing the first spring 9, which is convenient for the arc-shaped limiting piece 7 to adaptively avoid the redundant welding slag protrusions on the stud surface when clamping the stud, avoiding the situation that it will block and prevent the arc-shaped limiting piece 7 from clamping stably on the stud surface. In addition, the opened through groove 701 also reduces the clamping area between the arc-shaped limiting piece 7 and the stud surface, thus also reducing the situation that the arc-shaped limiting piece 7 clamps on the welding slag protrusions, thereby ensuring the subsequent grinding quality of the stud. After the arc-shaped limiting piece 7 clamps the stud, start the electric push rod 18 to drive the two anti-drop blocks 17 to approach each other, so that the anti-drop blocks 17 clamp and fix on the surface of the stud. The arranged anti-drop blocks 17 and the inclined card slots 1701 are convenient for limiting the stud.The oblique slot 1701 will be stuck on the texture of the outer surface of the column nail, reducing the excessive pressure of the grinding block on the column nail, which will cause the glued column nail to sink into the column nail roller 2 and become unstable after grinding, thereby ensuring that the column nail will not be affected in normal use after grinding. When the anti-drop blocks 17 are close to each other and clamp the column nail, the positioning hole 20 will remain at the same level as the positioning rod 19. When the connecting plate 4 moves forward, it will also drive the positioning rod 19 to move forward synchronously, so that when the grinding block grinds the column nail, the positioning rod 19 will also be inserted into the positioning hole 20, avoiding the anti-drop blocks 17 on both sides from failing to limit when the column nail is subjected to excessive pressure from the grinding block, resulting in the anti-drop blocks 17 on both sides collapsing and failing, thereby ensuring the anti-drop The block 17 is firmly clamped. When the rotating frame 6 rotates, it will also drive the guide rod 23 to rotate in the stabilizing ring 24, ensuring the stability of the rotating frame 6 when adjusting the angle of the grinding motor 3. After the adjustment is completed, the cylinder 26 is started to drive the stabilizing plate 25 to approach the stabilizing ring 24. The stabilizing plate 25 is tightly abutted against the stabilizing ring 24, ensuring the stability of the grinding motor 3 when grinding the column nail when the rotating frame 6 is stationary, thereby ensuring the grinding quality of the column nail. The connecting rod 30 is pulled outward to drive the clamping plate 29 to separate from the fixed plate 22, and then the fixed plate 22 is slid out of the slide plate 27, and the entire grinding device can be disassembled, which is convenient for the convenient disassembly and assembly of the grinding device, and will not affect the normal use of the column nail roller 2 after grinding.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A follow-up adaptive online large-diameter circular workpiece fully automatic grinding device, comprising a base plate (1), characterized in that: A stud roller (2) is provided on the left side of the bottom plate (1); A grinding mechanism is also provided for grinding excess material of the column nails after repair welding on the column nail roller (2), the grinding mechanism comprising a grinding motor (3) arranged at the right rear side of the column nail roller (2), a connecting plate (4) fixedly mounted on the rear end of the grinding motor (3), a hydraulic cylinder (5) fixedly mounted on the rear end of the connecting plate (4), a rotating frame (6) fixedly mounted on the outer side of the hydraulic cylinder (5), arc surface limiting pieces (7) symmetrically arranged on the front side of the grinding block of the grinding motor (3), through grooves (701) are provided on the ends of the arc surface limiting pieces (7) close to each other, a rotating motor (21) is fixedly mounted on the right end of the rotating frame (6), and a fixing plate (22) is fixedly mounted on the right end of the rotating motor (21); A disassembly and assembly mechanism for quickly disassembling and assembling the fixed plate (22) is also provided, the disassembly and assembly mechanism comprising a slide plate (27) slidably mounted on the lower end of the fixed plate (22), the lower end of the slide plate (27) being slidably mounted on the bottom plate (1), a threaded rod (28) being threadedly mounted on the middle portion of the slide plate (27), and the threaded rod (28) being rotatably mounted on the bottom plate (1).

2. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 1 is characterized in that: A support rod (8) is slidably mounted on the ends of the arc surface limiting pieces (7) that are away from each other, a spring (9) is fixedly mounted on the upper end of the support rod (8), a magnetic strip (10) is fixedly mounted on the upper end of the spring (9), and the ends of the magnetic strip (10) that are close to each other are respectively fixedly connected to the arc surface limiting pieces (7) on both sides, and a magnetic block rod (11) is provided on the upper side of the magnetic strip (10).

3. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 2 is characterized in that: The ends of the support rods (8) that are away from each other are both slidably mounted with brackets (12), and the brackets (12) are penetrated and slidably mounted on the connecting plate (4).

4. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 2 is characterized in that: A second spring (13) is fixedly mounted on the rear end of the support rod (8), the rear end of the second spring (13) is fixedly connected to the bracket (12), and a third spring (14) is fixedly mounted on one end of the bracket (12) close to each other, and the other end of the third spring (14) is fixedly connected to the connecting plate (4).

5. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 3 is characterized in that: A passive rod (15) is fixedly mounted on one end of the bracket (12) that is away from each other. An inclined block plate (16) is provided on the front side of the passive rod (15). The inclined block plate (16) is fixedly connected to the rotating frame (6), and the magnetic block rod (11) is fixedly connected to the upper end of the inclined block plate (16).

6. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 1 is characterized in that: The rear ends of the arc surface limiting pieces (7) are all slidably mounted with anti-drop blocks (17), and the ends of the anti-drop blocks (17) that are close to each other are each provided with an oblique slot (1701). An electric push rod (18) is fixedly mounted on the upper ends of the anti-drop blocks (17), and the electric push rod (18) is fixedly connected to the ends of the arc surface limiting pieces (7) that are far away from each other.

7. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 1 is characterized in that: Positioning rods (19) are fixedly mounted symmetrically on the front ends of the connecting plates (4), and positioning holes (20) are provided on the middle of the anti-drop block (17) corresponding to the positioning rods (19).

8. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 1 is characterized in that: A guide rod (23) is fixedly mounted on the front side of the right end of the rotating frame (6), a stabilizing ring (24) is fixedly mounted on the left end of the fixed plate (22) corresponding to the guide rod (23), and the guide rod (23) is slidably mounted on the stabilizing ring (24).

9. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 1 is characterized in that: A cylinder (26) is fixedly mounted on the front side of the left end of the rotating frame (6), and a stabilizing plate (25) is fixedly mounted on the right end of the cylinder (26) corresponding to the stabilizing ring (24).

10. The follow-up adaptive online large-diameter circular workpiece fully automatic grinding device according to claim 1, characterized in that: A clamping plate (29) is provided at the lower side of the rear end of the fixing plate (22) to abut against it. A connecting rod (30) is fixedly installed at the right end of the clamping plate (29). The middle part of the connecting rod (30) passes through and is slidably installed on the slide plate (27). A spring four (31) is sleeved on the outer side of the connecting rod (30).

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