Lock nut inner ring rounding device

Abstract

The application belongs to nut machining equipment technical field, and discloses a nut inner ring fillet machining equipment, which comprises a workbench and a cutting assembly, a machining cavity is formed in the top of the workbench, a stepped groove and a stepped hole are respectively formed in the inner part of the workbench, and the stepped groove and the stepped hole are communicated with the machining cavity. The stepped clamping rods symmetrically distributed above the stepped support plate are synchronously pushed along the side plane of the nut, so that the nut is automatically rotated and finely adjusted along the outer side of the side pushing assembly to be completely consistent with the direction of the stepped support plate under the pushing, six groups of stepped clamping rods evenly distributed at equal intervals are uniformly clamped and fixed along the six planes of the side surface of the nut under the continuous gas supply, the convenient and effective positioning and clamping are ensured, the multi-surface clamping position is accurately controlled, the stress uniformity of the clamped nut is improved, the stability of the chamfering processing after the nut positioning is further improved, and the use effect is good.

Description

Technical Field

[0001] This invention belongs to the technical field of nut processing equipment, specifically a machine for processing the inner ring rounded corners of an anti-loosening nut. Background Technology

[0002] A nut is a fastener that is screwed onto a bolt or threaded rod to secure itself. It is an essential component in all manufacturing machinery. Depending on the material, nuts are classified into several types, such as carbon steel, stainless steel, and non-ferrous metals (e.g., copper). For the processing of lock nuts, it is usually necessary to use processing equipment to round the inner ring of the nut.

[0003] In existing anti-loosening nut inner ring fillet machining equipment, the nut is typically placed on a worktable and clamped in conjunction with a clamping assembly to achieve clamping and fixation. After fixing, the top rotating cutting tool is activated and moved to the machining position to achieve fillet machining of the nut. However, due to the polyhedral structure of the nut's outer surface, clamping and fixing is usually done by reverse side clamping. However, due to the influence of the nut's placement position, the clamping rod cannot act symmetrically on the side of the nut's outer surface during clamping, resulting in poor stability after clamping and the possibility of scratches on the nut surface. Furthermore, the positioning operation for each set of surfaces is quite cumbersome, making it difficult to accurately and stably achieve symmetrical side clamping.

[0004] Furthermore, existing anti-loosening nut inner ring rounding processing equipment typically requires releasing the nut positioning clamp after completing the chamfering processing of a set of nuts, removing the nut, and replacing it with a subsequent nut for positioning processing. In practice, the nut needs to be moved and removed by external power or manual labor after processing, resulting in low nut output efficiency and affecting the efficiency of continuous processing. At the same time, a large amount of debris is generated during the actual rotary cutting process. When changing the nut to be processed, the debris generated on the top needs to be cleaned to reduce the impact of debris on the flatness of the nut placement, further increasing the operation time and reducing the efficiency of continuous processing, resulting in poor performance. Summary of the Invention

[0005] The purpose of this invention is to provide a machining equipment for rounding the inner ring of a lock nut, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a machining device for rounding the inner ring of a locking nut, comprising a worktable and a cutting assembly. The top of the worktable has a machining cavity. The interior of the worktable has stepped grooves and stepped holes, both of which are connected to the machining cavity. The stepped grooves and stepped holes are symmetrically positioned and evenly spaced in a ring. Stepped support plates and stepped clamping rods are movably fitted inside the stepped grooves and stepped holes, respectively. A first spring and a second spring are respectively installed inside the stepped grooves and stepped holes. A pressure valve is installed inside the worktable, with both ends of the pressure valve connected to the stepped grooves and stepped holes, respectively. A bottom section is provided on the bottom surface of the worktable. The bottom hole is connected to the stepped groove. A connecting ring is fixedly connected to the bottom of the worktable. An air supply component is provided on the side of the worktable and is connected to the connecting ring. A support component is fixedly installed at the bottom of the worktable. A top sleeve is provided directly below the processing cavity. A side push component is slidably sleeved on the surface of the top sleeve. An internal cavity and a through hole are respectively opened at the bottom and inside of the top sleeve. A movable plug is movably sleeved inside the internal cavity. A pull rope is fixedly connected to the bottom of the movable plug. A mounting frame is provided inside the support component. A tray is sleeved on the top of the mounting frame. A fixing rod is fixedly connected to the top of the tray. The upper end of the fixing rod is movably sleeved on the bottom of the top sleeve.

[0007] Preferably, the number of stepped support plates is six, and the number of stepped clamping rods is twelve. The twelve stepped clamping rods are divided into six groups of two, and all six groups of stepped clamping rods are located above the stepped support plates. Each pair of stepped clamping rods is symmetrically distributed above the stepped support plates.

[0008] Preferably, the air supply assembly includes a connecting frame, an air pump, and an air pipe. The connecting frame is fixedly installed on the bottom surface of the workbench, the air pump is fixedly installed on the top of the connecting frame, and the air pipe is fixedly connected between the air pump and the connecting ring. The bottom hole corresponds one-to-one with the stepped groove, and the bottom hole is connected to the connecting ring below.

[0009] Preferably, the upper end of the top sleeve extends into the interior of the processing cavity, the side of the top sleeve is provided with a side groove, the number of the side grooves is three and they are distributed in a ring at equal intervals on the outside of the top sleeve, the two ends of the through hole are respectively connected to the internal cavity and the side groove, and the bottom surface of the top sleeve is provided with a sleeve hole.

[0010] Preferably, a side tube is fixedly connected inside the side groove, one end of the side tube is connected to the through hole, a No. 3 spring is provided inside the side tube, and the inner surface of the side groove is slidably sleeved with the side push assembly.

[0011] Preferably, the side-push assembly includes a support frame, an intermediate shaft, a roller, and a push rod. The push rod is a stepped rod, with its large end slidably sleeved in the side tube. The support frame is fixedly connected to the outer end of the push rod, the intermediate shaft is fixedly connected to the inside of the support frame, the roller is rotatably sleeved on the outer surface of the intermediate shaft, the support frame is slidably sleeved inside the side groove, and the No. 3 spring is sleeved on the outside of the push rod and connected to the large end of the push rod.

[0012] Preferably, the support assembly includes a support rod, a bottom ring, and a guide cover. The support rod is fixedly connected to the bottom surface of the worktable, the bottom ring is fixedly connected to the bottom surface of the support rod, and the guide cover is fixedly connected to the top of the bottom ring and communicates with the inner cavity of the bottom ring.

[0013] Preferably, the mounting bracket is fixedly connected inside the bottom ring, and the top surface of the mounting bracket is provided with a mounting groove, the inner surface of which is movably sleeved with the tray.

[0014] Preferably, the fixing rods are distributed in a ring at equal intervals on the top of the tray, the diameter of the fixing rods is smaller than the inner diameter of the sleeve hole, and the upper end of the fixing rods is movably sleeved in the sleeve hole.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention utilizes a top sleeve directly below the machining cavity, along with a side-push assembly that slides onto the side of the top sleeve. Before positioning the nut, the retracting, annularly distributed side-push assembly allows the nut to be inserted. During resetting, the nut is clamped and supported from the inner side, ensuring the nut's central axis aligns with the machining center axis. Simultaneously, an air supply assembly provides initial air supply to the stepped groove, causing the stepped support plate in the groove to slide out and stably place the nut in the machining cavity. After coarse positioning, a continuous air supply from the air supply assembly further increases the air pressure in the stepped groove, opening the pressure valve and continuously introducing air into the stepped hole to push the stepped clamping rod. The simple operation of the nut during placement ensures that one side of the nut is roughly aligned with the direction of the stepped support plate. This allows the symmetrically distributed stepped clamping rods above the stepped support plate to push synchronously along one side of the nut. Under this pushing force, the nut automatically rotates and fine-tunes along the roller outside the side push assembly until it is completely aligned with the direction of the stepped support plate. With continued gas supply, the six sets of equally spaced stepped clamping rods uniformly clamp and fix the nut along the six planes on its side. This ensures convenient and effective positioning and clamping while precisely controlling the multi-faceted clamping position, improving the uniformity of force on the nut under clamping, and further enhancing the stability of chamfering processing after nut positioning. The overall performance is excellent.

[0017] 2. This invention utilizes an extended and repositionable stepped support plate, combined with a through-hole machining cavity and a nut intermittently fitted onto the top sleeve. During the actual chamfering process, the generated debris is distributed on the top of the worktable away from the nut, and automatically falls into the lower bottom ring along the gap between the machining cavity, the top sleeve, and the nut. The repositioned stepped support plate automatically discharges the accumulated debris during repositioning. Simultaneously, when the pull rope is pulled downwards, it drives the side push assembly to retract, causing the nut to automatically fall from the machining cavity. This achieves simple and rapid material discharge while automatically discharging and collecting debris. Furthermore, the material discharge and re-discharging actions are combined into one action, avoiding the need for additional power equipment for material discharge. By utilizing simple and efficient material discharge operations and automatic chip removal, the intermediate operation time in the continuous processing of multiple sets of nuts is reduced, further improving overall efficiency.

[0018] 3. This invention, in conjunction with the bottom tray and fixing rod, enables the positioning and installation of the top sleeve while simultaneously feeding a new round of nuts during material discharge. The discharged processed nuts automatically slide onto the bottom tray. After processing multiple sets of nuts, the processed nuts are layered on the outside of the fixing rod and stacked on top of the tray, achieving automatic and convenient sorting and stacking. This avoids additional sorting and stacking operations for the discharged nuts, greatly improving the convenience of handling and transferring, reducing the collection and stacking process, and providing excellent performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of the stepped support plate and the worktable of the present invention;

[0022] Figure 4 This is a cross-sectional schematic diagram of the stepped clamping rod and the worktable of the present invention;

[0023] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0024] Figure 6 This is a schematic diagram of the installation of the mounting bracket and support assembly of the present invention;

[0025] Figure 7 This is an exploded view of the connection between the fixing rod and the top sleeve of the present invention;

[0026] Figure 8 This is a cross-sectional schematic diagram of the top sleeve of the present invention;

[0027] Figure 9 for Figure 8Enlarged schematic diagram of the structure at point B.

[0028] In the diagram: 1. Worktable; 2. Cutting assembly; 3. Machining cavity; 4. Stepped groove; 5. Stepped hole; 6. Pressure valve; 7. Stepped support plate; 8. Stepped clamping rod; 9. Spring No. 1; 10. Spring No. 2; 11. Bottom hole; 12. Connecting ring; 13. Air supply assembly; 131. Connecting frame; 132. Air pump; 133. Air pipe; 14. Support assembly; 141. Support rod; 142. Bottom ring; 143. Guide cover; 15. Mounting frame; 16. Mounting groove; 17. Tray; 18. Fixing rod; 19. Top sleeve; 20. Internal cavity; 21. Movable plug; 22. Pull rope; 23. Side groove; 24. Side push assembly; 241. Support frame; 242. Intermediate shaft; 243. Roller; 244. Push rod; 25. Side tube; 26. Through hole; 27. Spring No. 3; 28. Sleeve hole. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1 to 9As shown, this embodiment of the invention provides a machining device for rounding the inner ring of a lock-loosening nut, including a worktable 1 and a cutting assembly 2. A machining cavity 3 is formed on the top of the worktable 1. Stepped grooves 4 and stepped holes 5 are formed inside the worktable 1, both communicating with the machining cavity 3. The stepped grooves 4 and stepped holes 5 are symmetrically positioned and evenly distributed in a ring. Stepped support plates 7 and stepped clamping rods 8 are movably fitted inside the stepped grooves 4 and stepped holes 5, respectively. A first spring 9 and a second spring 10 are respectively installed inside the stepped grooves 4 and stepped holes 5. A pressure valve 6 is installed inside the worktable 1, with both ends communicating with the stepped grooves 4 and stepped holes 5, respectively. A bottom hole 11 is formed on the bottom surface of the worktable 1, connecting the bottom hole 11 to the stepped grooves 4 and 5. The bottom of the workbench 1 is fixedly connected to a connecting ring 12. The side of the workbench 1 is provided with an air supply component 13, which is connected to the connecting ring 12. The bottom of the workbench 1 is fixedly installed with a support component 14. The top sleeve 19 is provided directly below the processing cavity 3. The top sleeve 19 is slidably fitted with a side push component 24. The bottom and inside of the top sleeve 19 are respectively provided with an internal cavity 20 and a through hole 26. The internal cavity 20 is movably fitted with a movable plug 21. The bottom of the movable plug 21 is fixedly connected with a pull rope 22. The support component 14 is provided with a mounting bracket 15. The top of the mounting bracket 15 is fitted with a tray 17. The top of the tray 17 is fixedly connected with a fixing rod 18. The upper end of the fixing rod 18 is movably fitted with the bottom of the top sleeve 19.

[0031] First embodiment: During processing, the air supply component 13 is activated, allowing gas to enter the stepped groove 4 through the connecting ring 12 and the bottom hole 11, pushing the stepped support plate 7 to move laterally. This pulls the pull rope 22 at the bottom of the top sleeve 19, causing the pull rope 22 to drive the movable plug 21 in the internal cavity 20 of the top sleeve 19, reducing the air pressure in the internal cavity 20. This causes the push rod 244 in the side groove 23 to move and retract along the inside of the side tube 25, causing the three sets of side push components 24 distributed in a ring to retract and move closer together. The nut to be processed is then fitted onto the outer side of the top of the top sleeve 19 and simultaneously falls onto the top of the stepped support plate 7. Since the side plane of the nut is approximately aligned with the direction of the stepped support plate 7, the pull rope 22 is released. As the third spring 27 elastically resets, the three sets of side push components 24 reset and automatically clamp and support the nut from inside, aligning the nut's central axis with... With the top sleeve 19 aligned with the central axis, coarse positioning is completed. The air supply is further increased, causing the air pressure in the stepped groove 4 to increase and opening the pressure valve 6. Some gas is continuously introduced into the stepped hole 5, increasing the air pressure in the stepped hole 5 and pushing the stepped clamping rod 8 to move laterally. As the second spring 10 pulls the rope, multiple sets of stepped clamping rods 8 simultaneously move laterally and extend out, contacting the lateral plane of the nut. The stepped clamping rods 8 symmetrically distributed above the stepped support plate 7 synchronously push the nut sleeved on the outside of the side push assembly 24 to slightly deflect, so that the lateral plane of the nut is aligned with the direction of the stepped support plate 7, completing the alignment and positioning. As the stepped clamping rods 8 continue to apply pressure, stable clamping and fixing are completed. The cutting assembly 2 on the top of the worktable 1 is started. As the cutting assembly moves down and rotates, with the lower end of the cutting assembly 2 located inside the nut, the cutting tool in the cutting assembly 2 rotates to complete the chamfering process.

[0032] First, by utilizing the top sleeve 19 directly below the machining cavity 3, and in conjunction with the side push assembly 24 that slides onto the side of the top sleeve 19, the nut is inserted before positioning by contracting the annularly distributed side push assembly 24. During resetting, the nut is clamped and supported from the inner side, ensuring that the nut's central axis is aligned with the machining center axis. Simultaneously, the air supply assembly 13 supplies air to the stepped groove 4, causing the stepped support plate 7 in the stepped groove 4 to slide out and stably place the nut in the machining cavity 3. After coarse positioning, the air supply assembly 13 continues to supply air, further increasing the air pressure in the stepped groove 4, opening the pressure valve 6, and continuously introducing air into the stepped hole 5 to achieve the stepped clamping rod 8. The simple operation of the nut during pushing and placement ensures that one side of the nut is roughly aligned with the direction of the stepped support plate 7. This allows the symmetrically distributed stepped clamping rods 8 above the stepped support plate 7 to push synchronously along one side of the nut. Under this pushing action, the nut automatically rotates and fine-tunes along the roller 243 on the outside of the side push assembly 24 until it is completely aligned with the direction of the stepped support plate 7. As the gas supply continues, the six sets of equally spaced stepped clamping rods 8 are evenly clamped and fixed along the six planes on the side of the nut. This ensures convenient and effective positioning and clamping while precisely controlling the multi-faceted clamping position, improving the uniformity of force on the nut under clamping, and further enhancing the stability of the nut after chamfering. The result is excellent performance.

[0033] Second embodiment: During chamfering, some of the generated debris falls on the top surface of the worktable 1 away from the nut, while some debris falls on the top surface of the extended stepped support plate 7 and the top surface of the top sleeve 19. The remaining debris falls automatically along the machining cavity 3 and the gap between the nut and the top sleeve 19, and is collected in the inner cavity of the bottom ring 142 along the guide cover 143. After the chamfering is completed, the cutting assembly 2 is reset and the air supply assembly 13 is turned off. As the air pressure in the stepped hole 5 and the stepped groove 4 decreases, the second spring 10 and the first spring 9 quickly reset, and the stepped support plate 7 and the stepped clamping rod 8 quickly reset to the inside of the worktable 1. The debris located on the top surface of the stepped support plate 7... Automatically falling, the bottom of the nut loses support. A new nut is taken out and the pull rope 22 is pulled again. As the three sets of side push components 24 retract again, the processed nut completely loses support and falls along the top sleeve 19 and the fixing rod 18. The air supply component 13 is restarted. As the stepped support plate 7 extends, the new nut is put on the outside of the top sleeve 19 and placed on the top surface of the stepped support plate 7. The pull rope 22 is released to proceed to the next round of processing. At the same time, the processed nut falls along the fixing rod 18 onto the top surface of the tray 17. After continuous processing, multiple sets of processed nuts are stacked on top of the tray 17. The top sleeve 19 is taken out upwards, and the tray 17 with multiple sets of nuts is taken out, completing the batch transfer and sorting of processed nuts.

[0034] First, by reusing the extended and resettable stepped support plate 7, in conjunction with the through-hole machining cavity 3 and the nut intermittently sleeved on the top sleeve 19, during the actual chamfering process, the generated debris is distributed on the top of the worktable 1 away from the nut, and automatically falls into the lower bottom ring 142 along the gap between the machining cavity 3, the top sleeve 19, and the nut. During the reset process of the stepped support plate 7, the accumulated debris on the top is automatically discharged. At the same time, when the pull rope 22 is pulled down, the side push component 24 is driven to retract, so that the nut automatically falls from the machining cavity 3. This achieves simple and fast material discharge while automatically discharging and collecting debris. Furthermore, the material discharge action and the re-discharging action are combined into one action, avoiding the need to add power equipment for material discharge operation. By utilizing the simple and efficient material discharge operation and automatic chip removal effect, the intermediate operation time in the continuous processing of multiple sets of nuts is reduced, further improving overall efficiency.

[0035] In addition, in conjunction with the bottom tray 17 and fixing rod 18, the top sleeve 19 is positioned and installed simultaneously, and a new round of nuts is fed while the material is being discharged. The discharged processed nuts automatically slide onto the bottom tray 17. After processing multiple sets of nuts, the processed nuts are layered on the outside of the fixing rod 18 and stacked on top of the tray 17, achieving automatic and convenient sorting and stacking. This avoids additional sorting and stacking operations for the processed nuts, greatly improving the convenience of handling and transferring, reducing the collection and stacking process, and achieving good results.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, there are six stepped support plates 7 and twelve stepped clamping rods 8. The twelve stepped clamping rods 8 are divided into six groups of two. All six groups of stepped clamping rods 8 are located above the stepped support plates 7. Each pair of stepped clamping rods 8 is symmetrically distributed above the stepped support plates 7. The air supply assembly 13 includes a connecting frame 131, an air pump 132, and an air pipe 133. The connecting frame 131 is fixedly installed on the bottom surface of the workbench 1. The air pump 132 is fixedly installed on the top of the connecting frame 131. The air pipe 133 is fixedly connected between the air pump 132 and the connecting ring 12. The bottom hole 11 corresponds one-to-one with the stepped groove 4. The bottom hole 11 is connected to the connecting ring 12 below.

[0037] During use, the stepped clamping rods 8, symmetrically distributed above the stepped support plate 7, maintain the nut's lateral plane and the stepped support plate 7 in roughly the same opposite direction under the rough positioning of the nut. This allows one set of lateral planes of the nut to bear the push of two sets of stepped clamping rods 8. Furthermore, the lateral plane of the nut under rough positioning maintains no gap difference with the two sets of stepped clamping rods 8 on one side. Under the push in six directions, the nut is pushed and deflected around the machining axis and automatically corrected. This achieves synchronous and effective clamping and fixing of the six sides of the nut with the corresponding stepped clamping rods 8, achieving precise and stable clamping and positioning. The air pump 132 in the air supply assembly 13 provides gas. Initially, the gas supply enables the extension of the stepped support plate 7 to support the placement of the nut. Under continuous supply, the pressure valve 6 is opened to control the push of the stepped clamping rods 8. The stepped support plate 7 and the stepped clamping rods 8 adapt to the corresponding stepped grooves 4 and stepped holes 5 to achieve movement limit and dynamic sealing.

[0038] like Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 9 As shown, the upper end of the top sleeve 19 extends into the interior of the processing cavity 3. Three side grooves 23 are provided on the side of the top sleeve 19 and are evenly spaced in a ring on the outer side of the top sleeve 19. The two ends of the through hole 26 are connected to the inner cavity 20 and the side grooves 23, respectively. A sleeve hole 28 is provided on the bottom surface of the top sleeve 19. A side tube 25 is fixedly connected inside the side groove 23. One end of the side tube 25 is connected to the through hole 26. A third spring 27 is provided inside the side tube 25. The inner surface of the side groove 23 is slidably sleeved with the side push assembly 24. The side push assembly 24 includes a support frame 241, an intermediate shaft 242, a roller 243, and a push rod 244. The push rod 244 is a stepped rod, with its large end slidably sleeved in the side tube 25. The support frame 241 is fixedly connected to the outer end of the push rod 244, the intermediate shaft 242 is fixedly connected to the inside of the support frame 241, the roller 243 is rotatably sleeved on the outer surface of the intermediate shaft 242, the support frame 241 is slidably sleeved in the inside of the side groove 23, and a No. 3 spring 27 is sleeved on the outside of the push rod 244 and connected to the large end of the push rod 244.

[0039] During use, the elasticity of the No. 3 spring 27 initially causes the three sets of side-push components 24 to open outward, and then retracts and resets itself, achieving the initial positioning of the outer nut. In conjunction with the rotatable roller 243, it ensures that when the stepped clamping rod 8 pushes the nut, it can rotate along the roller 243 and quickly rotate for fine adjustment, achieving automatic and precise correction. When the movable plug 21 moves down, it reduces the air pressure in the internal cavity 20, allowing the side-push components 24 to retract. The pull rope 22 makes it easy to pull out the movable plug 21 in different directions, improving operability.

[0040] like Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the support assembly 14 includes a support rod 141, a bottom ring 142, and a guide cover 143. The support rod 141 is fixedly connected to the bottom surface of the workbench 1, the bottom ring 142 is fixedly connected to the bottom surface of the support rod 141, the guide cover 143 is fixedly connected to the top of the bottom ring 142 and communicates with the inner cavity of the bottom ring 142, the mounting bracket 15 is fixedly connected to the inside of the bottom ring 142, the top surface of the mounting bracket 15 is provided with a mounting groove 16, the inner surface of the mounting groove 16 is movably sleeved with the tray 17, and the fixing rods 18 are distributed in a ring at equal intervals on the top of the tray 17. The diameter of the fixing rods 18 is smaller than the inner diameter of the sleeve hole 28, and the upper end of the fixing rods 18 is movably sleeved in the sleeve hole 28.

[0041] During use, the worktable 1 is supported by the support component 14, and the conical guide cover 143 guides the falling debris to automatically slide and collect inside the bottom ring 142 during processing, improving the collection effect. The mounting bracket 15 installed in the bottom ring 142 works with the mounting groove 16 to complete the positioning and sleeve of the tray 17, thereby ensuring the positioning of the top sleeve 19 with the processing axis and ensuring the positioning of the central axis of the nut sleeved on the outside of the top sleeve 19.

[0042] Working principle and usage procedure: During use, activate the air supply component 13, allowing gas to enter the stepped groove 4 through the connecting ring 12 and bottom hole 11, pushing the stepped support plate 7 to move laterally. This pulls the pull rope 22 at the bottom of the top sleeve 19, causing the pull rope 22 to move the movable plug 21 in the internal cavity 20 of the top sleeve 19, reducing the air pressure in the internal cavity 20. This causes the push rod 244 in the side groove 23 to move and retract along the inside of the side tube 25, causing the three sets of annularly distributed side push components 24 to retract and converge, fitting the nut to be processed onto the outer side of the top of the top sleeve 19 and simultaneously placing it on top of the stepped support plate 7. Since the side plane of the nut is approximately aligned with the direction of the stepped support plate 7, release the pull rope 22. As the third spring 27 elastically returns to its original position, the three sets of side push components... Part 24 resets and automatically clamps and supports from inside the nut, aligning the nut's central axis with the central axis of the top sleeve 19, completing coarse positioning. The air supply continues to increase, raising the air pressure in the stepped groove 4 and opening the pressure valve 6. Some gas continuously flows into the stepped hole 5, increasing the air pressure and pushing the stepped clamping rod 8 laterally. As the second spring 10 pulls the rope, multiple sets of stepped clamping rods 8 simultaneously extend laterally and contact the nut's lateral plane. The stepped clamping rods 8, symmetrically distributed above the stepped support plate 7, synchronously push the nut sleeved on the outside of the side push assembly 24 to slightly deflect, aligning the nut's lateral plane with the direction of the stepped support plate 7, completing alignment and positioning. Simultaneously, as the stepped clamping rods 8 continue to apply pressure, stable clamping and fixing are completed, and the worktable 1 is activated. As the cutting assembly 2 moves downward and rotates, with its lower end located inside the nut, the cutting blade in the cutting assembly 2 rotates to complete the chamfering process. Some of the resulting debris falls onto the top surface of the worktable 1, away from the nut. Other debris falls onto the top surface of the extended stepped support plate 7 and the top surface of the top sleeve 19. The remaining debris automatically falls along the machining cavity 3 and the gap between the nut and the top sleeve 19, and is collected along the guide cover 143 in the inner cavity of the bottom ring 142. After the chamfering process is completed, the cutting assembly 2 is reset, and the air supply assembly 13 is shut off. As the air pressure in the stepped hole 5 and stepped groove 4 decreases, the second spring 10 and the first spring 9 quickly reset, causing the stepped support plate 7 and the stepped clamping rod 8 to quickly reset to their original positions. Inside the workbench 1, the debris on the top surface of the stepped support plate 7 automatically falls off, the bottom of the nut loses support, a new nut is taken out and the pull rope 22 is pulled again. As the three sets of side push components 24 retract again, the processed nut completely loses support and falls along the top sleeve 19 and the fixing rod 18. The air supply component 13 is activated again. As the stepped support plate 7 extends out, the new nut is put on the outside of the top sleeve 19 and placed on the top surface of the stepped support plate 7. The pull rope 22 is released to proceed to the next round of processing. At the same time, the processed nut falls along the fixing rod 18 onto the top surface of the tray 17. After continuous processing, multiple sets of processed nuts are stacked on top of the tray 17. The top sleeve 19 is taken out upwards, and the tray 17 with multiple sets of nuts is taken out, completing the batch transfer and sorting of the processed nuts.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining device for rounding the inner ring of a locking nut, comprising a worktable (1) and a cutting assembly (2), characterized in that: The top of the workbench (1) has a processing cavity (3). The interior of the workbench (1) has stepped grooves (4) and stepped holes (5), which are connected to the processing cavity (3). The stepped grooves (4) and stepped holes (5) are in one-to-one correspondence and are distributed in a ring at equal intervals. Stepped support plates (7) and stepped clamping rods (8) are movably fitted inside the stepped grooves (4) and stepped holes (5), respectively. Spring No. 1 (9) and spring No. 2 (10) are installed inside the stepped grooves (4) and stepped holes (5), respectively. A pressure valve (6) is installed inside the workbench (1). The two ends of the pressure valve (6) are connected to the stepped grooves (4) and stepped holes (5), respectively. The bottom surface of the workbench (1) has a bottom hole (11), which is connected to the stepped grooves (4). A connecting ring is fixedly connected to the bottom of the workbench (1). (12) The side of the workbench (1) is provided with an air supply component (13), which is connected to the connecting ring (12). The bottom of the workbench (1) is fixedly installed with a support component (14). The processing cavity (3) is provided with a top sleeve (19) directly below it. The top sleeve (19) is slidably fitted with a side push component (24). The bottom and inside of the top sleeve (19) are respectively provided with an internal cavity (20) and a through hole (26). The internal cavity (20) is movably fitted with a movable plug (21). The bottom of the movable plug (21) is fixedly connected with a pull rope (22). The support component (14) is provided with a mounting bracket (15). The top of the mounting bracket (15) is fitted with a tray (17). The top of the tray (17) is fixedly connected with a fixing rod (18). The upper end of the fixing rod (18) is movably fitted with the bottom of the top sleeve (19).

2. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 1, characterized in that: The number of the stepped support plates (7) is six, and the number of the stepped clamping rods (8) is twelve. The twelve stepped clamping rods (8) are divided into six groups of two. All six groups of stepped clamping rods (8) are located above the stepped support plates (7), and each pair of stepped clamping rods (8) is symmetrically distributed above the stepped support plates (7).

3. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 1, characterized in that: The air supply assembly (13) includes a connecting frame (131), an air pump (132), and an air pipe (133). The connecting frame (131) is fixedly installed on the bottom surface of the workbench (1). The air pump (132) is fixedly installed on the top of the connecting frame (131). The air pipe (133) is fixedly connected between the air pump (132) and the connecting ring (12). The bottom hole (11) corresponds one-to-one with the stepped groove (4). The bottom hole (11) is connected to the connecting ring (12) below.

4. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 1, characterized in that: The upper end of the top sleeve (19) extends into the interior of the processing cavity (3). The side of the top sleeve (19) is provided with a side groove (23). There are three side grooves (23) distributed in a ring at equal intervals on the outside of the top sleeve (19). The two ends of the through hole (26) are connected to the inner cavity (20) and the side groove (23) respectively. The bottom surface of the top sleeve (19) is provided with a sleeve hole (28).

5. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 4, characterized in that: A side tube (25) is fixedly connected inside the side groove (23). One end of the side tube (25) is connected to the through hole (26). A No. 3 spring (27) is provided inside the side tube (25). The inner surface of the side groove (23) is slidably sleeved with the side push assembly (24).

6. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 5, characterized in that: The side-push assembly (24) includes a support frame (241), an intermediate shaft (242), a roller (243), and a push rod (244). The push rod (244) is a stepped rod. The large end of the push rod (244) is slidably sleeved in the side tube (25). The support frame (241) is fixedly connected to the outer end of the push rod (244). The intermediate shaft (242) is fixedly connected to the inside of the support frame (241). The roller (243) is rotatably sleeved on the outer surface of the intermediate shaft (242). The support frame (241) is slidably sleeved in the inside of the side groove (23). The No. 3 spring (27) is sleeved on the outside of the push rod (244) and connected to the large end of the push rod (244).

7. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 1, characterized in that: The support assembly (14) includes a support rod (141), a bottom ring (142), and a guide cover (143). The support rod (141) is fixedly connected to the bottom surface of the workbench (1), the bottom ring (142) is fixedly connected to the bottom surface of the support rod (141), and the guide cover (143) is fixedly connected to the top of the bottom ring (142) and communicates with the inner cavity of the bottom ring (142).

8. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 1, characterized in that: The mounting bracket (15) is fixedly connected to the inside of the bottom ring (142). The top surface of the mounting bracket (15) is provided with a mounting groove (16), and the inner surface of the mounting groove (16) is movably connected to the tray (17).

9. The equipment for machining the inner ring fillet of an anti-loosening nut according to claim 1, characterized in that: The fixing rods (18) are distributed in a ring at equal intervals on the top of the tray (17). The diameter of the fixing rods (18) is smaller than the inner diameter of the sleeve hole (28). The upper end of the fixing rods (18) is movably sleeved in the sleeve hole (28).

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