A polishing device for bearing balls

Abstract

This utility model relates to the technical field of bearing ball production equipment, and in particular to a polishing device for bearing balls, comprising a base, the base including a polishing tank with an open top; a drive mechanism mounted on the base, the drive mechanism including an execution end disposed within the polishing tank; a polishing seat fixedly disposed within the polishing tank and mounted on the execution end of the drive mechanism, so as to receive a drive and rotate around the axis of the polishing tank; the polishing seat having an open top cavity for loading bearing balls; a displacement mechanism disposed outside the polishing tank; and a polishing disc disposed on the upper side of the polishing seat and driven by the displacement mechanism, so as to cooperate with the rotating polishing seat to polish the bearing balls. Through the displacement mechanism and polishing disc, combined with the actively rotatable polishing seat, this utility model achieves stable and efficient polishing of bearing balls.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing ball production equipment, specifically to a polishing device for bearing balls. Background Technology

[0002] As a fundamental component of precision machinery, the surface finish and geometric accuracy of bearing balls directly affect the smoothness of bearing operation, noise level, and service life. Polishing is a crucial step in ensuring the final surface quality of bearing balls. Existing technologies, such as the patent with publication number CN218534062U, disclose a vertical surface polishing device for steel balls. This device applies pressure to the balls through upper and lower grinding brushes, causing relative movement to achieve polishing. However, this device still has several problems to be solved in practical applications. For example, during the polishing process, the hydraulic or pneumatic device driving the upper grinding brush often applies pressure directly. If the pressure is not properly controlled or lacks effective buffering, the balls may be obstructed from rotating between the upper and lower grinding brushes, or even undergo plastic deformation due to excessive static pressure, changing from a spherical shape to an elliptical shape, seriously damaging product accuracy and yield. Furthermore, the installation and removal of structures such as positioning plates used to limit the position of the balls are usually cumbersome, making it inconvenient to regularly clean and maintain the internal parts of the equipment, especially the lower grinding brush area, affecting production efficiency and potentially causing secondary scratches due to residual debris. Furthermore, in traditional polishing stands, the balls are prone to disordered movement and collisions when rotating at high speeds, which not only makes it difficult to guarantee polishing uniformity but may also cause new damage to the ball surface. Therefore, developing a polishing device that can precisely control polishing pressure, is easy to maintain and clean, and ensures that the balls are stably and orderly arranged during the polishing process is of significant practical importance. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a polishing device for bearing balls. It achieves stable and efficient polishing of bearing balls by means of a displacement mechanism and a polishing disc, combined with an actively rotatable polishing seat.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a polishing device for bearing balls, comprising a base, wherein the base includes a polishing tank with an opening at the top; A drive mechanism is mounted on the base, and the drive mechanism includes an actuator disposed inside the polishing tank; A polishing seat is fixedly disposed inside the polishing jar and installed on the actuating end of the drive mechanism to receive a drive and rotate around the axis of the polishing jar; the polishing seat is provided with an upper opening and a cavity for loading bearing balls; A displacement mechanism is located on the outside of the polishing tank; A polishing disc is located on the upper side of the polishing seat and is driven by the displacement mechanism to polish the bearing balls in conjunction with the rotating polishing seat.

[0005] Preferably, the polishing seat includes a base plate and a fixing cylinder; the fixing cylinder is fixedly installed on the base plate, and the two together form the upper open cylindrical cavity; the base plate is fixedly installed on the actuating end of the drive mechanism by bolts.

[0006] Preferably, a positioning groove is provided on the base plate on the inner side of the fixed cylinder. The depth of the positioning groove is not less than the radius of the bearing ball and has a spiral structure, which is used to guide the bearing ball to arrange and position in an orderly manner when the polishing seat rotates.

[0007] Preferably, the fixing cylinder has a hollow structure.

[0008] Preferably, the fixed cylinder has several outlets on its outer periphery.

[0009] Preferably, the displacement mechanism includes a support frame, a rocker arm, a pressing cylinder, and a deflection cylinder; the support frame is fixedly mounted on the base; the tail end of the rocker arm is rotatably connected to the support frame; the pressing cylinder is mounted on the rocker arm, and its piston rod is connected to the polishing disc for driving the polishing disc to move longitudinally; the fixed end of the deflection cylinder is rotatably connected to the support frame, and its piston rod is rotatably connected to the middle part of the rocker arm.

[0010] Preferably, the displacement mechanism further includes a sleeve seat, a support rod, and a connecting plate. The sleeve seat is fixedly disposed at the first end of the rocker arm. The support rod is slidably disposed inside the sleeve of the sleeve seat, and its lower end is fixedly connected to the polishing disc. The connecting plate is located on the lower side of the rocker arm, with its first end fixedly connected to the body of the support rod and its tail end fixedly connected to the piston rod of the pressing cylinder.

[0011] Preferably, the drive mechanism includes a motor fixedly mounted on a base, a drive wheel on the output shaft of the motor, a rotating shaft mounted on the base and extending into the polishing tank at its upper end, a driven wheel sleeved on the lower end of the rotating shaft, and a polishing table fixedly mounted on the upper end of the rotating shaft and located inside the polishing tank; wherein the driven wheel is connected to the drive wheel via a belt drive, and the polishing table is fixedly mounted on the polishing table.

[0012] Preferably, the polishing table has a mounting groove that matches the size of the lower end of the polishing seat.

[0013] Preferably, the base further includes a frame, a discharge pipe, and a limiting cylinder; the polishing tank is fixedly installed on the frame; the limiting cylinder is fixedly disposed inside the polishing tank and coaxially disposed with the polishing tank to form an annular receiving space inside the polishing tank; the discharge pipe is fixedly disposed at the lower end of the polishing tank and communicates with the receiving space.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The vortex-shaped positioning groove structure set on the base plate of the polishing seat can use centrifugal force and the guiding effect of the groove wall to make the balls automatically arrange themselves in an orderly manner along the vortex line and squeeze and position each other when the polishing seat rotates. This effectively avoids the ball scattering and jumping phenomenon during the polishing process, thus ensuring polishing uniformity and surface quality. 2. Through the coordinated action of the pressing cylinder and the deflection cylinder in the displacement mechanism, the downward pressure and posture of the polishing disc can be precisely controlled, which can ensure effective contact polishing and avoid ball deformation caused by excessive pressure. At the same time, the swing function driven by the deflection cylinder enables the polishing disc to cover every corner of the positioning groove, eliminating polishing dead angles. 3. The outlet on the outer periphery of the polishing seat fixing cylinder is connected to the discharge pipe at the bottom of the polishing tank, forming a smooth debris discharge channel. The debris generated during the polishing process can be quickly thrown out and collected under the action of centrifugal force, keeping the polishing area clean. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 A top view of the polishing device of this utility model after removing the polishing seat; Figure 3 For the present utility model Figure 2 Cross-sectional view along the AA direction; Figure 4 This is a right view of the polishing device of this utility model; Figure 5 This is a schematic diagram of the polishing seat structure of this utility model.

[0016] In the diagram: 1. Machine base, 11. Machine frame, 12. Polishing tank, 13. Discharge pipe, 14. Limiting cylinder; 2 Drive mechanism, 21 Motor, 22 Polishing table, 23 Rotary shaft, 24 Driven wheel, 25 Drive wheel, 221 Mounting slot; 3 Polishing base, 31 Base plate, 32 Fixing cylinder, 33 Positioning groove; 4 polishing discs; 5. Displacement mechanism, 51. Support frame, 52. Connecting shaft, 53. Rocker arm, 54. Pressing cylinder, 55. Connecting plate, 56. Sleeve seat, 57. Support rod, 58. Deflection cylinder. Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice this utility model. Although this utility model has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of this utility model.

[0018] See Figure 1-5 In one embodiment of this utility model, a polishing device for bearing balls includes: The base 1 includes a polishing tank 12 with an opening at the top. Drive mechanism 2, which is mounted on base 1, includes an actuating end disposed inside polishing tank 12; Polishing base 3 is fixedly disposed inside polishing tank 12 and installed on the execution end of drive mechanism 2 to receive drive and rotate around the axis of polishing tank 12; polishing base 3 is provided with an upper opening and a cavity for loading bearing balls. Displacement mechanism 5, which is located on the outside of polishing tank 12; Polishing disc 4 is located on the upper side of polishing seat 3 and is driven by displacement mechanism 5 to cooperate with the actively rotating polishing seat 3 to polish the bearing balls.

[0019] Specifically, the base 1 further includes a frame 11, a discharge pipe 13, and a limiting cylinder 14. The polishing tank 12 is fixedly mounted on the frame 11. A through hole is formed at the axis of the polishing tank 12. The limiting cylinder 14 is fixedly disposed inside the polishing tank 12 and coaxially arranged with the through hole to form an annular receiving space inside the polishing tank 12. The discharge pipe 13 is fixedly connected to the bottom of the polishing tank 12 and communicates with the receiving space. In this embodiment, the receiving space is used to collect debris thrown out by centrifugal force during the polishing process, and the discharge pipe 13 is used to discharge the debris outward.

[0020] The drive mechanism 2 includes a motor 21, a polishing table 22, a rotating shaft 23, a driven wheel 24, a driving wheel 25, and several bearings. The motor 21 is fixedly mounted on the frame 11 and below the polishing tank 12. The driving wheel 25 is fixedly sleeved on the output shaft of the motor 21. The polishing table 22 is located inside the polishing tank 12. The rotating shaft 23 is fixedly mounted on the frame 11 through bearings. Its upper end extends through a through hole into the polishing tank 12 and is fixedly connected to the polishing table 22. The rotating shaft 23 is coaxial with the through hole. The driven wheel 24 is fixedly sleeved on the lower end of the rotating shaft 23. The driven wheel 24 and the driving wheel 25 are driven by a belt (not shown in the figure). When the motor 21 is working, it can drive the polishing table 22 to rotate around the axis inside the polishing tank 12.

[0021] The polishing seat 3 includes a base plate 31 and a fixing cylinder 32. The fixing cylinder 32 is fixedly installed on the base plate 31, and the base plate 31 and the fixing cylinder 32 together form a cylindrical cavity with an open upper end. The base plate 31 is fixedly installed on the polishing table 22 by bolts, and the fixing cylinder 32 is coaxial with the rotating shaft 23. The fixing cylinder 32 has a hollow structure, which is used to throw the debris out of the polishing seat 3 under the action of centrifugal force during polishing. In practice, several discharge ports can be opened on the outer periphery of the fixing cylinder 32.

[0022] Furthermore, a positioning groove 33 is provided on the inner side of the fixed cylinder 32 on the base plate 31. The depth of the positioning groove 33 is not less than the radius of the ball. The positioning groove 33 has a spiral structure. When the ball is placed in the positioning groove 33, as the polishing seat 3 rotates, the ball is squeezed and positioned by centrifugal force and the guiding action of the positioning groove 33. This spiral structure can make the ball arrange in sequence, reducing the scattering and jumping phenomenon that occurs during the polishing process.

[0023] Furthermore, the polishing table 22 is provided with a mounting groove 221 that matches the size of the base plate 31. The mounting groove 221 can assist in the rapid positioning of the polishing seat 3 and improve assembly efficiency.

[0024] The displacement mechanism 5 includes a support frame 51, a connecting shaft 52, a rocker arm 53, a pressing cylinder 54, a deflection cylinder 58, and a connecting assembly. The support frame 51 is fixedly mounted on the frame 11, outside the polishing tank 12. The tail end of the rocker arm 53 is rotatably connected to the support frame 51 via the connecting shaft 52, and the rocker arm 53 is located above the polishing tank 12. The pressing cylinder 54 is mounted on the rocker arm 53, and its piston rod is connected to the polishing disc 4 via the connecting assembly. Under the action of the pressing cylinder 54, the polishing disc... 4 can be longitudinally displaced above the polishing seat 3, meaning that the pressing cylinder 54 can drive the polishing disc 4 to contact the balls in the polishing seat 3, and cooperate with the actively rotating polishing seat 3 to polish the balls; the fixed end of the deflection cylinder 58 is rotatably connected to the support frame 51, and the piston rod of the deflection cylinder 58 is rotatably connected to the middle of the rocker arm 53. The deflection cylinder 58 can drive the rocker arm 53 to rotate around the connecting shaft 52, thereby compensating for the coverage of the polishing surface of the polishing disc 4 and ensuring that it can polish every part of the positioning groove 33.

[0025] The connecting assembly includes a connecting plate 55, a sleeve seat 56, and a support rod 57. The sleeve seat 56 is fixed to the front end of the rocker arm 53 by bolts, and the support rod 57 is slidably disposed in the sleeve of the sleeve seat 56. The lower end of the support rod 57 is fixed to the polishing disc 4 by screws or threads. The connecting plate 55 is located on the lower side of the rocker arm 53. The front end of the connecting plate 55 is fixed to the rod body of the support rod 57, and the rear end of the connecting plate 55 is fixed to the piston rod of the pressing cylinder 54.

[0026] In summary, by combining the displacement mechanism and polishing disc with the actively rotating polishing seat, stable and efficient polishing of bearing balls is achieved. Specifically, the vortex-shaped positioning groove structure on the base plate of the polishing seat utilizes centrifugal force and the guiding effect of the groove wall to automatically align the balls along the vortex line and position them by mutual compression when the polishing seat rotates. This effectively avoids the balls scattering and jumping during the polishing process, thus ensuring polishing uniformity and surface quality. Furthermore, through the coordinated action of the downward pressure cylinder and the deflection cylinder in the displacement mechanism, the downward pressure and attitude of the polishing disc can be precisely controlled. This design ensures effective contact polishing while preventing ball bearing deformation due to excessive pressure. The oscillating function driven by the deflection cylinder allows the polishing disc to cover every corner of the positioning groove, eliminating polishing dead zones. Furthermore, the outlet on the outer circumference of the polishing seat's fixed cylinder, connected to the discharge pipe at the bottom of the polishing tank, forms a smooth debris discharge channel. Debris generated during polishing is quickly thrown out and collected under centrifugal force, maintaining the cleanliness of the polishing area. The entire device has a reasonable structural design, offering high polishing efficiency, stable quality, and easy maintenance, making it highly practical and worthy of widespread application.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A polishing device for bearing balls, characterized in that, include: The base (1) includes a polishing tank (12) with an opening at the top. A drive mechanism (2) is mounted on the base (1), and the drive mechanism (2) includes an actuating end disposed within the polishing tank (12); The polishing seat (3) is fixedly disposed inside the polishing tank (12) and installed on the execution end of the drive mechanism (2) to receive drive and rotate around the axis of the polishing tank (12); the polishing seat (3) is provided with an upper opening for loading bearing balls; The displacement mechanism (5) is located on the outside of the polishing tank (12); The polishing disc (4) is located on the upper side of the polishing seat (3) and is driven by the displacement mechanism (5) to polish the bearing balls in conjunction with the rotating polishing seat (3).

2. The polishing device for bearing balls according to claim 1, characterized in that: The polishing seat (3) includes a base plate (31) and a fixing cylinder (32); the fixing cylinder (32) is fixedly installed on the base plate (31), and the two together form the upper open cylindrical cavity; the base plate (31) is fixedly installed on the execution end of the drive mechanism (2) by bolts.

3. A polishing device for bearing balls according to claim 2, characterized in that: The base plate (31) is provided with a positioning groove (33) on the inner side of the fixed cylinder (32). The depth of the positioning groove (33) is not less than the radius of the bearing ball and has a spiral structure. It is used to guide the bearing ball to be arranged and positioned in an orderly manner when the polishing seat (3) rotates.

4. A polishing device for bearing balls according to claim 2, characterized in that: The fixed cylinder (32) has a hollow structure.

5. A polishing device for bearing balls according to claim 2, characterized in that: The fixed cylinder (32) has several outlets on its outer periphery.

6. A polishing device for bearing balls according to claim 1, characterized in that: The displacement mechanism (5) includes a support frame (51), a rocker arm (53), a pressing cylinder (54), and a deflection cylinder (58); the support frame (51) is fixedly mounted on the base (1); the tail end of the rocker arm (53) is rotatably connected to the support frame (51); the pressing cylinder (54) is mounted on the rocker arm (53), and its piston rod is connected to the polishing disc (4) for driving the polishing disc (4) to move longitudinally; the fixed end of the deflection cylinder (58) is rotatably connected to the support frame (51), and its piston rod is rotatably connected to the middle part of the rocker arm (53).

7. A polishing device for bearing balls according to claim 6, characterized in that: The displacement mechanism (5) further includes a sleeve seat (56), a support rod (57), and a connecting plate (55). The sleeve seat (56) is fixedly disposed at the head end of the rocker arm (53). The support rod (57) is slidably disposed inside the sleeve of the sleeve seat (56), and its lower end is fixedly connected to the polishing disc (4). The connecting plate (55) is located on the lower side of the rocker arm (53), and its head end is fixedly connected to the rod body of the support rod (57), and its tail end is fixedly connected to the piston rod of the pressing cylinder (54).

8. A polishing device for bearing balls according to claim 1, characterized in that: The drive mechanism (2) includes a motor (21) fixedly mounted on the base (1), a drive wheel (25) on the output shaft of the motor (21), a rotating shaft (23) mounted on the base (1) and extending to the polishing tank (12) at its upper end, a driven wheel (24) sleeved on the lower end of the rotating shaft (23), and a polishing table (22) fixedly mounted on the upper end of the rotating shaft (23) and located in the polishing tank (12); wherein the driven wheel (24) is connected to the drive wheel (25) by belt drive, and the polishing seat (3) is fixedly mounted on the polishing table (22).

9. A polishing device for bearing balls according to claim 8, characterized in that: The polishing table (22) has a mounting groove (221) that matches the size of the lower end of the polishing seat (3).

10. A polishing device for bearing balls according to claim 1, characterized in that: The base (1) also includes a frame (11), a discharge pipe (13) and a limiting cylinder (14); the polishing tank (12) is fixedly installed on the frame (11); the limiting cylinder (14) is fixedly disposed inside the polishing tank (12) and is coaxially disposed with the polishing tank (12) to form an annular receiving space inside the polishing tank (12); the discharge pipe (13) is fixedly disposed at the lower end of the polishing tank (12) and communicates with the receiving space.

Images