Device for improving roundness of finished steel ball

Abstract

The invention discloses a device for improving the roundness of finished steel balls, and relates to the technical field of steel ball machining. A fastening assembly is fixed to the left end of the upper side of the chassis, a material injection assembly is installed on the upper side of the fastening assembly, a material pushing assembly is installed at the left end of the interior of the material injection assembly, a second grinding assembly is installed at the lower end of the surface of the material injection assembly, and a moving assembly is installed at the right end of the surface of the second grinding assembly; the grinding assembly comprises a first hydraulic rod, a connecting column, a connecting disc, a fixing ring and a first grinding ring, the first hydraulic rod is installed at the upper end of the chassis, the connecting column is fixed to a telescopic arm of the first hydraulic rod, the upper end of the connecting column is rotationally connected with the connecting disc, and the fixing ring is fixed to the upper end of the connecting disc through a bolt; the machining efficiency can be improved, the roundness consistency of the steel balls is guaranteed, and the steel balls are prevented from falling off in the polishing process.

Description

Technical Field

[0001] This invention relates to the field of steel ball processing technology, specifically to a device for improving the roundness of finished steel balls. Background Technology

[0002] In the field of precision machinery manufacturing, the roundness of finished steel balls is one of the most critical quality indicators. As a key component of rolling bearings, the geometric accuracy of the steel ball, especially its roundness, directly determines the rotational accuracy, dynamic performance, service life, and operational reliability of the entire bearing assembly. A steel ball with extremely high roundness ensures uniform load distribution, significantly reduces vibration and noise during operation, and minimizes wear on the bearing raceways. For high-end equipment such as high-precision machine tool spindles, aerospace engines, high-speed trains, and precision medical devices, the bearings used have almost stringent requirements for the roundness of the steel balls. Therefore, improving the roundness of finished steel balls is not only a process of improving the quality of individual parts, but also a fundamental link in ensuring the high-performance, high-reliability, and long-life operation of the entire mechanical system, and is of vital importance to promoting the development of high-end equipment manufacturing.

[0003] However, existing steel ball finishing technologies, especially in the roundness correction stage after heat treatment, still have some significant limitations. Traditional processes often rely on extending the grinding time of steel balls in the finishing mill or using higher-precision grinding discs for batch processing. This method is inherently passive and extensive, resulting in low efficiency and high processing costs. More importantly, during batch grinding, a large number of steel balls are in a state of disordered random collision and rolling within the grinding disc, leading to inconsistent grinding forces, motion trajectories, and grinding times for each ball. This results in significant differences in the roundness improvement effect within the same batch of steel balls, making it difficult to achieve stable and consistent ultra-high precision. Furthermore, existing devices often lack effective pretreatment and anti-drop mechanisms during feeding and grinding. Minor burrs or bumps that may exist on the surface of the steel balls before entering the main grinding zone cannot be effectively treated. Moreover, during high-speed grinding, there is a risk that the steel balls may accidentally detach from the grinding zone. This not only affects the continuity and automation of the processing but also restricts further improvement in the roundness accuracy and pass rate of the final product. Therefore, we propose a device to improve the roundness of finished steel balls. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a device for improving the roundness of finished steel balls, which can improve processing efficiency, ensure the uniformity of steel ball roundness and prevent steel balls from falling off during grinding, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for improving the roundness of finished steel balls, comprising a chassis and a first grinding assembly; Chassis: A fastening assembly is fixed on the upper left side, an injection assembly is installed on the upper side of the fastening assembly, a pushing assembly is installed on the left side inside the injection assembly, a second grinding assembly is installed on the lower end of the surface of the injection assembly, and a moving assembly is installed on the right end of the surface of the second grinding assembly. The grinding assembly includes a first hydraulic rod, a connecting column, a connecting plate, a fixing ring, and a first grinding ring. The first hydraulic rod is mounted on the upper end of the chassis. A connecting column is fixed to the telescopic arm of the first hydraulic rod. A connecting plate is rotatably connected to the upper end of the connecting column. A fixing ring is bolted to the upper end of the connecting plate. A first annular groove is formed at the upper end of the fixing ring. The first grinding ring is fixed inside the first annular groove. A first annular grinding groove is formed at the upper end of the first grinding ring. The first grinding ring corresponds to a second grinding assembly. A rotating assembly and a fixing assembly are mounted on the circumferential surface of the connecting column. The fixing assembly cooperates with a fastening assembly. The input end of the first hydraulic rod is electrically connected to the output end of an external PLC controller. The first and second grinding assemblies work together to achieve precision grinding of the steel ball. The fastening and fixing assemblies ensure the stability of the device during the grinding process, preventing displacement from affecting accuracy, thereby effectively improving the roundness consistency and processing efficiency of the finished steel ball.

[0006] Furthermore, the rotating assembly includes a support base, a second motor, a gear, and a gear ring. The support base is fixed to the front end of the connecting column surface, and the second motor is mounted on the upper side of the support base. A gear is fixed on the output shaft of the second motor, and a gear ring is fixed to the lower end of the connecting disc. The gear and gear ring mesh with each other. The input end of the second motor is electrically connected to the output end of an external PLC controller. The rotating assembly drives the gear and gear ring through the second motor, causing the connecting disc and the first grinding ring to rotate, thereby realizing dynamic grinding action. This design enhances the uniformity and coverage of grinding, avoids local wear caused by static grinding, and significantly improves the correction effect of steel ball roundness and the level of automation.

[0007] Furthermore, the fixing assembly includes a connecting seat, a third hydraulic rod, a mounting plate, and an anti-slip plate. The connecting seat is fixed to the left end of the circumferential surface of the connecting column. The third hydraulic rod is installed on the left side of the connecting seat. The mounting plate is fixed to the telescopic arm of the third hydraulic rod. The anti-slip plate is fixed to the left end of the mounting plate. The left end of the anti-slip plate has evenly distributed anti-slip grooves. The input end of the third hydraulic rod is electrically connected to the output end of an external PLC controller. The fixing assembly pushes the anti-slip plate and the fastening assembly together through the third hydraulic rod, generating friction to lock the position of the device. The anti-slip groove design increases the roughness of the contact surface, preventing slippage caused by vibration or load during grinding, and ensuring the stability and repeatability of the grinding operation.

[0008] Furthermore, the fastening assembly includes a support bar and an anti-slip plate. The support bar is fixed to the left side of the upper end of the chassis, and the anti-slip plate is fixed to the right side of the support bar. The anti-slip plate corresponds to the anti-slip disc. The fastening assembly provides a left support point through the support bar and the anti-slip plate, forming a clamping effect with the anti-slip disc of the fastening assembly. This cooperation ensures the overall rigidity of the device during high-speed grinding and reduces the risk of component loosening.

[0009] Furthermore, the injection assembly includes a guide barrel, a grinding half-pipe, a guide tube, a connecting block, and an arc-shaped grinding strip. The guide barrel is fixed to the upper side of the support strip. A feeding port is opened at the upper end of the surface of the guide barrel. The grinding half-pipe is fixed inside the guide barrel. The guide tube is fixed to the right end of the guide barrel. A connecting block is provided at the lower end of the guide tube. A fixing groove is opened on the lower side of the connecting block. An arc-shaped grinding strip is fixed inside the fixing groove. A grinding groove is opened on the lower side of the arc-shaped grinding strip. The injection assembly is used to guide and pre-treat the steel balls. The guide barrel and the guide tube achieve orderly feeding. The grinding half-pipe performs preliminary rolling grinding before the steel balls enter the main grinding area. The arc-shaped grinding strip is set in conjunction with the second grinding ring to prevent the steel balls from detaching from the gap between the first grinding ring and the second grinding ring during grinding.

[0010] Furthermore, the second grinding assembly includes a fixed plate, a second grinding ring, a connecting plate, and a mounting strip. The mounting strip is fixed to the lower end of the surface of the guide barrel, and the connecting plate is fixed to the lower side of the mounting strip. The fixed plate is fixed to the lower side of the connecting plate by bolts. The lower end of the fixed plate has a second annular groove, and the second grinding ring is fixed inside the second annular groove. The lower end of the second grinding ring has a second annular groove grinding groove. The second grinding ring corresponds to the first grinding ring. The right ends of both the fixed plate and the second grinding ring have openings. The connecting block is located inside the two openings. The arc-shaped grinding strip corresponds to the second grinding ring. The grinding groove on the lower side of the arc-shaped grinding strip communicates with the second annular groove grinding groove on the lower end of the second grinding ring. The second grinding assembly and the first grinding ring form a closed annular grinding space. The design of the second annular groove grinding groove of the second grinding ring ensures that the steel ball is uniformly ground during revolution and rotation.

[0011] Furthermore, the pushing assembly includes a second hydraulic rod and a pushing disc. The pushing disc is installed inside the grinding half-tube. The second hydraulic rod is installed at the left end of the guide tube. The telescopic arm of the second hydraulic rod is fixed to the left end of the pushing disc. The input end of the second hydraulic rod is electrically connected to the output end of an external PLC controller. The pushing assembly drives the pushing disc through the second hydraulic rod to smoothly push the steel balls out of the grinding half-tube, ensuring that the steel balls enter the guide tube in sequence.

[0012] Furthermore, the moving component includes a fixed frame, pressure sensors, a mounting frame, a first motor, a moving bar, a threaded rod, and a limiting rod. The right end of the fixed plate has a mounting groove, inside which the fixed frame is fixed. Two pressure sensors are provided; the right pressure sensor is installed inside the right side of the fixed frame. The opening at the right end of the fixed plate has a groove, and the left pressure sensor is installed inside the groove, fitting against the left side of the connecting block. A moving bar is fixed to the right side of the connecting block. A threaded hole is formed on the front edge of the moving bar, and a threaded rod is threaded into the threaded hole. The threaded rod is rotatably connected to the inside of the fixed frame. The rear of the moving bar... A limiting hole is provided on the side, and a limiting rod is slidably connected inside the limiting hole. The limiting rod is fixed inside the fixed frame. An installation frame is fixed on the right side of the fixed frame, and a first motor is installed inside the installation frame. The output shaft of the first motor is fixed to the right end of the threaded rod. The input end of the first motor is electrically connected to the output end of an external PLC controller. The moving component drives the threaded rod through the first motor to precisely adjust the position of the connecting block and the arc-shaped grinding strip, moving them away from the fixed plate. Then, the steel ball to be ground can be inserted into the gap between the first grinding ring and the second grinding ring through the opening provided on the right end of the fixed plate. After insertion, the connecting block and the arc-shaped grinding strip are reset to prevent the steel ball from falling off during grinding.

[0013] Furthermore, it also includes a protective cover, which has a fixing hole in the middle. The connecting column is fixed inside the fixing hole, and the gear and gear ring are both located inside the protective cover. The gear and gear ring are protected by the protective cover.

[0014] Furthermore, three corresponding mounting seats are fixed on the side of the chassis, and mounting holes are provided on the upper side of the mounting seats. The chassis is fixed by setting the mounting seats and mounting holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This device for improving the roundness of finished steel balls has the following advantages: 1. By setting up the injection and pushing components, the orderly feeding and preliminary pretreatment of steel balls are achieved. The guide barrel and grinding half-pipe guide the steel balls to flow in a single row. The arc-shaped grinding strip is rolled and corrected before entering the main grinding area, effectively removing surface burrs and micro-deformation. This avoids the problem of inconsistent damage caused by the collision of steel balls in traditional batch grinding, thereby significantly improving the correction accuracy of steel ball roundness and batch consistency, ensuring that each steel ball can achieve a uniform grinding effect. 2. By setting up a dynamic cooperation between the rotating component and the fixed component, the second motor drives the gear and gear ring to rotate the first grinding ring. Combined with the clamping effect of the fastening component and the anti-slip structure, the overall rigidity of the device is enhanced during high-speed grinding, preventing displacement caused by vibration or load, ensuring stable pressure on the contact surface between the grinding ring and the steel ball, making the grinding force distribution uniform, reducing the risk of component loosening, and thus improving the repeatability accuracy of grinding operation and long-term operational reliability.

[0016] 3. By setting up a moving component and a second grinding component, the position of the arc-shaped grinding strip can be precisely adjusted by the first motor during use, forming an openable and closable annular grinding space, which realizes convenient insertion of steel balls and ensures that they do not fall off. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front sectional view of the present invention; Figure 4 This is a schematic diagram of the structure of the first grinding ring of the present invention; Figure 5 For the present invention Figure 4 Enlarged view at point B in the middle; Figure 6 This is a schematic diagram of the structure of the protective cover of the present invention.

[0018] In the diagram: 1. Chassis; 2. First grinding assembly; 21. First hydraulic rod; 22. Connecting column; 23. Connecting plate; 24. Fixing ring; 25. First grinding ring; 3. Second grinding assembly; 31. Fixing plate; 32. Second grinding ring; 33. Connecting plate; 34. Mounting strip; 4. Injection assembly; 41. Guide barrel; 42. Grinding half-pipe; 43. Guide pipe; 44. Connecting block; 45. Arc-shaped grinding strip; 5. Pushing assembly; 51. Second hydraulic rod; 52. Pushing plate; 6. Fixing assembly; 61. Connecting seat; 62. Third hydraulic rod; 63. Mounting plate; 64. Anti-slip plate; 7. Fastening assembly; 71. Support strip; 72. Anti-slip plate; 8. Moving assembly; 81. Fixing frame; 82. Pressure sensor; 83. Mounting frame; 84. First motor; 85. Moving strip; 86. Threaded rod; 87. Limiting rod; 9. Rotating assembly; 91. Support seat; 92. Second motor; 93. Gear; 94. Gear ring; 10. Protective cover; 11. Mounting seat; 12. Mounting hole. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-6 This embodiment provides a technical solution: a device for improving the roundness of finished steel balls, including a chassis 1 and a first grinding component 2; Chassis 1: A fastening assembly 7 is fixed to the upper left end. An injection assembly 4 is installed on the upper side of the fastening assembly 7. A pushing assembly 5 is installed on the left end inside the injection assembly 4. A second grinding assembly 3 is installed on the lower end of the surface of the injection assembly 4. A moving assembly 8 is installed on the right end of the surface of the second grinding assembly 3. The fastening assembly 7 includes a support bar 71 and an anti-slip plate 72. A support bar 71 is fixed to the left side of the upper end of the chassis 1. An anti-slip plate 72 is fixed to the right side of the support bar 71. The anti-slip plate 72 corresponds to the anti-slip disc 64. The injection assembly 4 includes a guide barrel 41, a grinding half-pipe 42, a guide tube 43, a connecting block 44, and an arc-shaped grinding bar 45. A guide barrel 41 is fixed to the upper side of the support bar 71. A feeding port is opened at the upper end of the surface of the guide barrel 41. The interior of the guide barrel 41... A grinding half-pipe 42 is fixed. A guide pipe 43 is fixed to the right end of the guide barrel 41. A connecting block 44 is provided at the lower end of the guide pipe 43. A fixing groove is opened on the lower side of the connecting block 44. An arc-shaped grinding strip 45 is fixed inside the fixing groove. A grinding groove is opened on the lower side of the arc-shaped grinding strip 45. The second grinding assembly 3 includes a fixing plate 31, a second grinding ring 32, a connecting plate 33, and an mounting strip 34. The mounting strip 34 is fixed to the lower end of the surface of the guide barrel 41. A connecting plate 33 is fixed to the lower side of the mounting strip 34. The fixing plate 31 is fixed to the lower side of the connecting plate 33 by bolts. A second annular groove is opened at the lower end of the fixing plate 31. A second grinding ring 32 is fixed inside the second annular groove. A second annular groove grinding groove is opened at the lower end of the second grinding ring 32. The second grinding... Ring 32 corresponds to the first grinding ring 25. Openings are provided at the right ends of both the fixed plate 31 and the second grinding ring 32. Connecting block 44 is located inside the two openings. Arc-shaped grinding strip 45 corresponds to the second grinding ring 32. The grinding groove on the lower side of the arc-shaped grinding strip 45 communicates with the second annular groove grinding groove at the lower end of the second grinding ring 32. The pushing assembly 5 includes a second hydraulic rod 51 and a pushing plate 52. The pushing plate 52 is installed inside the grinding half-tube 42. The second hydraulic rod 51 is installed at the left end of the guide barrel 41. The telescopic arm of the second hydraulic rod 51 is fixed to the left end of the pushing plate 52. The input end of the second hydraulic rod 51 is electrically connected to the output end of an external PLC controller. The moving assembly 8 includes a fixed... The system comprises a frame 81, a pressure sensor 82, a mounting frame 83, a first motor 84, a moving bar 85, a threaded rod 86, and a limiting rod 87. A mounting groove is provided at the right end of the fixed plate 31, inside which the fixed frame 81 is fixed. Two pressure sensors 82 are provided; the right pressure sensor 82 is installed inside the right side of the fixed frame 81. A groove is provided inside the opening at the right end of the fixed plate 31, and the left pressure sensor 82 is installed inside the groove. The left pressure sensor 82 is abutted against the left side of the connecting block 44. A moving bar 85 is fixed to the right side of the connecting block 44. A threaded hole is provided on the front edge of the moving bar 85, and a threaded rod 86 is threadedly connected inside the threaded hole. The threaded rod 86 is rotatably connected inside the fixed frame 81.A limiting hole is provided on the rear side of the moving bar 85. A limiting rod 87 is slidably connected inside the limiting hole. The limiting rod 87 is fixed inside the fixed frame 81. A mounting frame 83 is fixed on the right side of the fixed frame 81. A first motor 84 is installed inside the mounting frame 83. The output shaft of the first motor 84 is fixed to the right end of the threaded rod 86. The input end of the first motor 84 is electrically connected to the output end of an external PLC controller. The moving component 8 drives the threaded rod 86 through the first motor 84 to precisely adjust the position of the connecting block 44 and the arc-shaped grinding bar 45 away from the fixed plate 31. Then, the steel ball to be ground can be put into the gap between the first grinding ring 25 and the second grinding ring 32 through the opening provided on the right end of the fixed plate 31. After the ball is put in, the connecting block 44 and the arc-shaped grinding bar 45 are reset to prevent the steel ball from falling off during grinding. The pushing component 5 is connected by the second hydraulic rod 5. 1. The drive pusher plate 52 smoothly pushes the steel balls out of the grinding half-tube 42, ensuring that the steel balls enter the guide tube 43 in sequence. The second grinding component 3 and the first grinding ring 25 form a closed annular grinding space. The second annular groove design of the second grinding ring 32 ensures that the steel balls are uniformly ground during revolution and rotation. The feeding component 4 is used to guide and pre-treat the steel balls. The guide barrel 41 and the guide tube 43 achieve orderly feeding. The grinding half-tube 42 performs preliminary rolling grinding before the steel balls enter the main grinding area. The arc-shaped grinding strip 45, in conjunction with the second grinding ring 32, prevents the steel balls from detaching from the gap between the first grinding ring 25 and the second grinding ring 32 during grinding. The fastening component 7 provides a left-side support point through the support strip 71 and the anti-slip plate 72, forming a clamping effect with the anti-slip plate 64 of the fixing component 6. This combination ensures the overall rigidity of the device during high-speed grinding and reduces the risk of component loosening. Grinding assembly 2 includes a first hydraulic rod 21, a connecting column 22, a connecting plate 23, a fixing ring 24, and a first grinding ring 25. The first hydraulic rod 21 is mounted on the upper end of the chassis 1. The connecting column 22 is fixed to the telescopic arm of the first hydraulic rod 21. The connecting plate 23 is rotatably connected to the upper end of the connecting column 22. The fixing ring 24 is fixed to the upper end of the connecting plate 23 by bolts. The upper end of the fixing ring 24 has a first annular groove. The first grinding ring 25 is fixed inside the first annular groove. The upper end of the first grinding ring 25 has a first annular grinding groove. The first grinding ring 25 corresponds to the second grinding assembly 3. A rotating assembly is mounted on the circumferential surface of the connecting column 22. The rotating assembly 9 includes a support base 91, a second motor 92, a gear 93, and a gear ring 94. The support base 91 is fixed to the front end of the connecting column 22. The second motor 92 is mounted on the upper side of the support base 91. A gear 93 is fixed to the output shaft of the second motor 92. A gear ring 94 is fixed to the lower end of the connecting disc 23. The gear 93 and gear ring 94 mesh. The input end of the second motor 92 is electrically connected to the output end of an external PLC controller. The fixing assembly 6 includes a connecting base 61, a second motor 92, a gear 93, and a fastening assembly 7. The input end of the first hydraulic rod 21 is electrically connected to the output end of an external PLC controller. The device comprises a pressure rod 62, a mounting plate 63, and an anti-slip plate 64. A connecting seat 61 is fixed to the left end of the circumferential surface of the connecting column 22. A third hydraulic rod 62 is mounted on the left side of the connecting seat 61. A mounting plate 63 is fixed to the telescopic arm of the third hydraulic rod 62. An anti-slip plate 64 is fixed to the left end of the mounting plate 63. The left end of the anti-slip plate 64 has evenly distributed anti-slip grooves. The input end of the third hydraulic rod 62 is electrically connected to the output end of an external PLC controller. The fixing assembly 6 pushes the anti-slip plate 64 against the fastening assembly 7 through the third hydraulic rod 62, generating friction to lock the device position. The anti-slip groove design increases the roughness of the contact surface, preventing damage during grinding due to vibration or load. The resulting slippage ensures the stability and repeatability of the grinding operation. The rotating component 9 drives the gear 93 and gear ring 94 through the second motor 92, causing the connecting disk 23 and the first grinding ring 25 to rotate, thus realizing dynamic grinding action. This design enhances the uniformity and coverage of grinding, avoids local wear caused by static grinding, and significantly improves the correction effect of steel ball roundness and the level of automation. The first grinding component 2 and the second grinding component 3 work together to achieve precision grinding of the steel ball. The fastening component 7 and the fixing component 6 ensure the stability of the device during the grinding process and avoid displacement affecting accuracy, thereby effectively improving the roundness consistency and processing efficiency of the finished steel ball.

[0021] The protective cover 10 is also included. A fixing hole is provided in the middle of the protective cover 10. The connecting column 22 is fixed inside the fixing hole. The gear 93 and the gear ring 94 are both located inside the protective cover 10. The protective cover 10 is used to protect the gear 93 and the gear ring 84.

[0022] Among them, three corresponding mounting seats 11 are fixed on the side of the chassis 1, and mounting holes 12 are opened on the upper side of the mounting seats 11. The chassis 1 is fixed by setting the mounting seats 11 and the mounting holes 12.

[0023] The working principle of the device for improving the roundness of finished steel balls provided by this invention is as follows: The steel ball first enters the device through the feeding port on the surface of the guide barrel 41 and falls into the grinding half-tube 42. At this time, the second hydraulic rod 51 of the pushing component 5 drives the pushing disc 52 to smoothly push the steel ball out, so that it falls along the guide tube 43. Under the action of the moving component 8, the first motor 84 drives the threaded rod 86 to rotate, driving the moving bar 85 and the connecting block 44 to adjust the position of the arc-shaped grinding bar 45, so that it is far away from the opening of the fixed plate 31, so that the steel ball can be smoothly put into the annular grinding groove between the first grinding ring 25 and the second grinding ring 32. After being put in, the moving component 8 quickly resets, so that the arc-shaped grinding bar 45 communicates with the grinding groove of the second grinding ring 32, forming a closed space to prevent the steel ball from being ground during grinding. During the process, the steel ball detaches; simultaneously, the third hydraulic rod 62 of the fixing component 6 pushes the anti-slip plate 64 to press against the anti-slip plate 72 of the fastening component 7, generating friction to lock the position of the device and ensure stability; then, the second motor 92 of the rotating component 9 drives the gear 93 and gear ring 94, driving the connecting plate 23 and the first grinding ring 25 to rotate, while the second grinding component 3 remains stationary through the fixing plate 31. Under the action of centrifugal force, the steel ball revolves and rotates along the annular grinding groove, and is uniformly ground by the first grinding ring 25 and the second grinding ring 32; during this process, the arc-shaped grinding strip 45 performs preliminary rolling grinding on the steel ball to remove surface burrs, while the protective cover 10 protects the gear transmission components from contamination; the entire process is automatically controlled by an external PLC controller, and the roundness of the steel ball is significantly improved in the end.

[0024] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The first hydraulic rod 21, the second hydraulic rod 51, the third hydraulic rod 62, the first motor 84, the second motor 92, and the pressure sensor 82 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the first hydraulic rod 21, the second hydraulic rod 51, the third hydraulic rod 62, the first motor 84, and the second motor 92 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for improving the roundness of finished steel balls, characterized in that: Includes chassis (1) and first polishing assembly (2); Chassis (1): A fastening component (7) is fixed on the upper left side. An injection component (4) is installed on the upper side of the fastening component (7). A pushing component (5) is installed on the left side inside the injection component (4). A second grinding component (3) is installed on the lower end of the surface of the injection component (4). A moving component (8) is installed on the right end of the surface of the second grinding component (3). Grinding assembly (2): includes a first hydraulic rod (21), a connecting column (22), a connecting plate (23), a fixing ring (24), and a first grinding ring (25). The first hydraulic rod (21) is installed on the upper end of the chassis (1). The connecting column (22) is fixed on the telescopic arm of the first hydraulic rod (21). The connecting plate (23) is rotatably connected to the upper end of the connecting column (22). The fixing ring (24) is fixed to the upper end of the connecting plate (23) by bolts. The upper end of the fixing ring (24) is provided with a first annular groove. The first grinding ring (25) is fixed inside the first annular groove. The upper end of the first grinding ring (25) is provided with a first annular grinding groove. The first grinding ring (25) corresponds to the second grinding assembly (3). A rotating assembly (9) and a fixing assembly (6) are installed on the circumferential surface of the connecting column (22). The fixing assembly (6) cooperates with the fastening assembly (7). The input end of the first hydraulic rod (21) is electrically connected to the output end of an external PLC controller.

2. The device for improving the roundness of finished steel balls according to claim 1, characterized in that: The rotating assembly (9) includes a support base (91), a second motor (92), a gear (93), and a gear ring (94). The support base (91) is fixed to the front end of the surface of the connecting column (22). The second motor (92) is mounted on the upper side of the support base (91). The gear (93) is fixed on the output shaft of the second motor (92). The gear ring (94) is fixed to the lower end of the connecting disc (23). The gear (93) and the gear ring (94) mesh with each other. The input end of the second motor (92) is electrically connected to the output end of an external PLC controller.

3. The device for improving the roundness of finished steel balls according to claim 1, characterized in that: The fixing component (6) includes a connecting seat (61), a third hydraulic rod (62), a mounting plate (63), and an anti-slip plate (64). The connecting seat (61) is fixed to the left end of the circumferential surface of the connecting column (22). The third hydraulic rod (62) is installed on the left side of the connecting seat (61). The mounting plate (63) is fixed on the telescopic arm of the third hydraulic rod (62). The anti-slip plate (64) is fixed to the left end of the mounting plate (63). The left end of the anti-slip plate (64) is provided with uniformly distributed anti-slip grooves. The input end of the third hydraulic rod (62) is electrically connected to the output end of an external PLC controller.

4. The device for improving the roundness of finished steel balls according to claim 3, characterized in that: The fastening assembly (7) includes a support bar (71) and an anti-slip plate (72). The support bar (71) is fixed on the left side of the upper end of the chassis (1), and the anti-slip plate (72) is fixed on the right side of the support bar (71). The anti-slip plate (72) corresponds to the anti-slip disc (64).

5. The device for improving the roundness of finished steel balls according to claim 4, characterized in that: The injection assembly (4) includes a flow guide barrel (41), a grinding half-pipe (42), a flow guide pipe (43), a connecting block (44), and an arc-shaped grinding strip (45). The flow guide barrel (41) is fixed on the upper side of the support bar (71). A feeding port is provided at the upper end of the surface of the flow guide barrel (41). The grinding half-pipe (42) is fixed inside the flow guide barrel (41). The flow guide pipe (43) is fixed at the right end of the flow guide barrel (41). A connecting block (44) is provided at the lower end of the flow guide pipe (43). A fixing groove is provided on the lower side of the connecting block (44). An arc-shaped grinding strip (45) is fixed inside the fixing groove. A grinding groove is provided on the lower side of the arc-shaped grinding strip (45).

6. The device for improving the roundness of finished steel balls according to claim 5, characterized in that: The second grinding assembly (3) includes a fixed plate (31), a second grinding ring (32), a connecting plate (33), and a mounting strip (34). The mounting strip (34) is fixed to the lower end of the surface of the guide barrel (41). The connecting plate (33) is fixed to the lower side of the mounting strip (34). The fixed plate (31) is fixed to the lower side of the connecting plate (33) by bolts. A second annular groove is formed at the lower end of the fixed plate (31), and the second grinding ring (32) is fixed inside the second annular groove. The lower end of the second polishing ring (32) is provided with a second annular groove polishing groove. The second polishing ring (32) corresponds to the first polishing ring (25). The right ends of the fixed plate (31) and the second polishing ring (32) are both provided with openings. The connecting block (44) is located inside the two openings. The arc-shaped polishing strip (45) corresponds to the second polishing ring (32). The polishing groove on the lower side of the arc-shaped polishing strip (45) is connected to the second annular groove polishing groove on the lower end of the second polishing ring (32).

7. The device for improving the roundness of finished steel balls according to claim 5, characterized in that: The feeding assembly (5) includes a second hydraulic rod (51) and a feeding disc (52). The grinding half tube (42) is provided with a feeding disc (52). The left end of the guide barrel (41) is equipped with a second hydraulic rod (51). The telescopic arm of the second hydraulic rod (51) is fixed to the left end of the feeding disc (52). The input end of the second hydraulic rod (51) is electrically connected to the output end of an external PLC controller.

8. The device for improving the roundness of finished steel balls according to claim 5, characterized in that: The moving component (8) includes a fixed frame (81), a pressure sensor (82), a mounting frame (83), a first motor (84), a moving bar (85), a threaded rod (86), and a limiting rod (87). A mounting groove is provided at the right end of the fixed plate (31), and the fixed frame (81) is fixed inside the mounting groove. Two pressure sensors (82) are provided; the right pressure sensor (82) is installed inside the right side of the fixed frame (81). A groove is provided inside the opening at the right end of the fixed plate (31), and the left pressure sensor (82) is installed inside the groove. The left pressure sensor (82) is in contact with the left side of the connecting block (44). A moving bar is fixed to the right side of the connecting block (44). (85) A threaded hole is provided on the front side of the moving bar (85), and a threaded rod (86) is threadedly connected inside the threaded hole. The threaded rod (86) is rotatably connected inside the fixed frame (81). A limit hole is provided on the rear side of the moving bar (85), and a limit rod (87) is slidably connected inside the limit hole. The limit rod (87) is fixed inside the fixed frame (81). An installation frame (83) is fixed on the right side of the fixed frame (81). A first motor (84) is installed inside the installation frame (83). The output shaft of the first motor (84) is fixed to the right end of the threaded rod (86). The input end of the first motor (84) is electrically connected to the output end of an external PLC controller.

9. The device for improving the roundness of finished steel balls according to claim 2, characterized in that: It also includes a protective cover (10), which has a fixing hole in the middle, and the connecting column (22) is fixed inside the fixing hole. The gear (93) and the gear ring (94) are both located inside the protective cover (10).

10. The device for improving the roundness of finished steel balls according to claim 1, characterized in that: The chassis (1) has three corresponding mounting seats (11) fixed on its side, and the mounting seats (11) have mounting holes (12) on their upper sides.

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