A bearing steel ball surface polishing device

Abstract

The utility model relates to bearing steel ball polishing technical field, concretely is a kind of bearing steel ball surface polishing equipment, including support seat, the top of support seat is provided with the material box for containing bearing steel ball and polishing powder, the inside of material box is provided with the rotating shovel component for agitating bearing steel ball and polishing powder, the inner wall bottom of support seat is provided with the drive assembly for driving rotating shovel component to carry out compound motion, drive assembly includes the case that is fixed in the inner wall bottom of support seat, the inner side wall of case and inner bottom wall are respectively connected by bearing and realize the swing of activity, the utility model is by rotating shovel component " rotation + lifting " compound motion breaks the stationary accumulation of bearing steel ball and polishing powder, avoids stratification and realizes the even contact of both, while the relative motion speed and friction intensity between material are substantially improved by the reverse circumferential motion of material box and rotating frame, both accelerate polishing process, and solve material following inertia problem, significantly improve polishing effect.

Description

Technical Field

[0001] This utility model relates to the field of bearing steel ball polishing technology, specifically a bearing steel ball surface polishing device. Background Technology

[0002] In fields such as precision machinery, automotive bearings, and high-end instruments, the surface finish of bearing steel balls directly determines the wear resistance, operating noise, and service life of the bearing. Polishing equipment, as the core tool for precision machining of steel balls, plays a decisive role in the final product quality through its operational stability and polishing effect.

[0003] Currently, the material mixing components and bearing parts of bearing steel ball polishing equipment mostly adopt a single motion coordination or fixed contact structure. During the polishing process, the material is prone to layering and accumulation due to force imbalance, resulting in uneven contact between the steel balls and polishing powder. This structural defect is more prominent when processing batches of steel balls or polishing steel balls of different specifications, which directly affects the consistency of the surface finish of the steel balls.

[0004] To address the aforementioned issues, it is necessary to develop a bearing steel ball polishing device with a stable motion coordination structure and optimized material interaction. Through efficient motion coordination design and reliable constraint mechanisms, the stability and polishing accuracy of the polishing device in batch operations can be improved, meeting the technical requirements of high-quality precision machining of bearing steel balls in the precision manufacturing field. Utility Model Content

[0005] The purpose of this invention is to provide a bearing steel ball surface polishing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A bearing steel ball surface polishing device includes a support base, a material box for holding bearing steel balls and polishing powder is provided on the top of the support base, a rotary shovel assembly for agitating the bearing steel balls and polishing powder is provided inside the material box, and a drive assembly for driving the rotary shovel assembly to perform compound motion is provided at the bottom of the inner wall of the support base.

[0007] Furthermore, the drive assembly includes a chassis fixed to the bottom of the inner wall of the support base. The inner side wall and the inner bottom wall of the chassis are movably connected by bearings. The inner side wall of the chassis is movably connected to a worm gear by bearings, and the inner bottom wall of the chassis is movably connected to a worm by bearings. The worm gear and the worm are in a mating relationship to achieve power transmission.

[0008] Furthermore, two eccentric wheels are provided on the outside of the chassis. The sidewalls of the eccentric wheels are fixedly connected to the worm gear via a short shaft. A bracket is fixedly connected to the top of the chassis. A swing frame is rotatably connected inside the bracket. A connecting rod is rotatably connected to the outer sidewall of the swing frame. A linkage circular frame is fixedly connected to the bottom end of the connecting rod. The linkage circular frame is sleeved on the outside of the eccentric wheels. The linkage circular frame and the eccentric wheels are movably connected via bearings. A push block is fixedly connected to the inner wall of the swing frame. A transmission rod with a regular polygonal cross-section is fixedly connected to one end of the worm gear extending to the top of the chassis. A push cylinder that can slide along its axial direction is sleeved on the outer side of the bottom end of the transmission rod. The bottom end of the push cylinder is fixedly connected to the bottom of the rotating frame included in the rotating shovel assembly.

[0009] Furthermore, an annular push rail is fixedly connected to the outer side of the push cylinder, and the push block is slidably connected to the outer side of the annular push rail.

[0010] Furthermore, the rotary shovel assembly also includes multiple scrapers fixed to the bottom of the rotary frame, and a shaft cylinder is fixedly installed at the center of the inside of the material box, with the pusher cylinder slidably connected inside the shaft cylinder.

[0011] Furthermore, a ring track is fixedly connected to the top of the support base, a ring slide and a ring toothed plate are fixedly installed at the bottom of the material box, a support is fixedly connected to the side wall of the support base, a motor is fixedly installed at the top of the support, a gear that meshes with the ring toothed plate is fixedly connected to the output end of the motor, and a second motor for driving the worm gear to rotate is fixedly installed at the bottom of the outer side of the machine box.

[0012] Furthermore, the top and side walls of the hopper are respectively provided with a feed inlet and a discharge outlet, and both the feed inlet and the discharge outlet are sealed with partitions.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a combined "rotation + lifting" motion of the rotating shovel assembly to completely break the static accumulation of bearing steel balls and polishing powder. It achieves full tumbling of materials in the vertical direction, preventing stratification and ensuring each steel ball makes uniform contact with the polishing powder. Simultaneously, the counter-rotating circular motion of the hopper and rotating frame significantly increases the relative speed and friction intensity between the steel balls and polishing powder, and between the steel balls and the scraper. This accelerates the polishing process and solves the problem of material following inertia caused by unidirectional movement, significantly improving polishing effect and efficiency. Attached Figure Description

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings; Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the annular toothed plate structure in this utility model; Figure 3 This is a schematic diagram of the rotating frame structure in this utility model; Figure 4 This is a schematic diagram of the pusher cylinder structure in this utility model; Figure 5 This is a schematic diagram of the annular pusher rail structure in this utility model; Figure 6 This is a schematic diagram of the eccentric wheel structure in this utility model; Figure 7 This is a schematic diagram of the annular slider structure in this utility model.

[0015] Reference numerals in the attached drawings: 1. Support base; 2. Material box; 301. Machine housing; 302. Worm gear; 303. Worm; 304. Eccentric wheel; 305. Swing frame; 306. Connecting rod; 307. Linkage circular frame; 308. Push block; 309. Pushing cylinder; 310. Circular pushing rail; 311. Transmission rod; 401. Rotating frame; 402. Scraper; 5. Shaft cylinder; 6. Circular track; 7. Circular slide bar; 8. Circular toothed plate; 9. Motor 1; 10. Gear. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: As Figures 1-7 As shown, a bearing steel ball surface polishing device includes a support base 1, a material box 2 for holding bearing steel balls and polishing powder is provided on the top of the support base 1, a rotary shovel assembly for stirring the bearing steel balls and polishing powder is provided inside the material box 2, and a drive assembly for driving the rotary shovel assembly to perform compound motion is provided at the bottom of the inner wall of the support base 1.

[0018] The drive assembly includes a housing 301 fixed to the bottom of the inner wall of the support base 1. The inner side wall and the inner bottom wall of the housing 301 are movably connected by bearings. A worm gear 302 is movably connected to the inner side wall of the housing 301 via bearings, and a worm 303 is movably connected to the inner bottom wall of the housing 301 via bearings. The worm gear 302 and the worm 303 form a mating relationship to achieve power transmission. A second motor for driving the worm 303 to rotate is fixedly installed on the outer bottom of the housing 301.

[0019] Two eccentric wheels 304 are located on the outer side of the chassis 301. The sidewalls of the eccentric wheels 304 are fixedly connected to the worm gear 302 via short shafts. A bracket is fixedly connected to the top of the chassis 301. A swing frame 305 is rotatably connected inside the bracket. A connecting rod 306 is rotatably connected to the outer side wall of the swing frame 305. A linkage circular frame 307 is fixedly connected to the bottom end of the connecting rod 306. The linkage circular frame 307 is sleeved on the outer side of the eccentric wheels 304. The linkage circular frame 307 and the eccentric wheels 304 are movably connected via bearings.

[0020] A push block 308 is fixedly connected to the inner wall of the swing frame 305. A transmission rod 311 with a regular polygonal cross-section is fixedly connected to one end of the worm gear 303 extending to the top of the housing 301. A push cylinder 309 that can slide along its axial direction is sleeved on the outer side of the bottom end of the transmission rod 311. The bottom end of the push cylinder 309 is fixedly connected to the bottom of the rotating frame 401 included in the rotating shovel assembly. An annular push rail 310 is fixedly connected to the outer side of the push cylinder 309, and the push block 308 is slidably connected to the outer side of the annular push rail 310.

[0021] The rotary shovel assembly also includes multiple scrapers 402 fixed to the bottom of the rotary frame 401. A shaft cylinder 5 is fixedly installed at the center of the inside of the material box 2. The push cylinder 309 is slidably connected inside the shaft cylinder 5. It should be noted that the rotation direction of the material box 2 is opposite to the rotation direction of the rotary frame 401.

[0022] Example 2: A ring track 6 is fixedly connected to the top of the support base 1, a ring slide 7 and a ring toothed plate 8 are fixedly installed at the bottom of the material box 2, a support is fixedly connected to the side wall of the support base 1, a motor 9 is fixedly installed at the top of the support, and a gear 10 that meshes with the ring toothed plate 8 is fixedly connected to the output end of the motor 9.

[0023] The top and side walls of the material bin 2 are respectively provided with a feed inlet and a discharge outlet, and both the feed inlet and the discharge outlet are sealed with partitions.

[0024] Combining Embodiment 1 and Embodiment 2, the working principle of this utility model is as follows: After adding bearing steel balls and polishing powder into the feed hopper 2 through the feed inlet, and sealing the feed inlet with a partition, the equipment enters the complete polishing process. After the worm gear 303 is driven to rotate by the second motor, the worm gear 303 drives the transmission rod 311 at the top to rotate synchronously. Since the inner groove of the push cylinder 309 is perfectly matched with the regular polygonal cross-section of the transmission rod 311, the transmission rod 311 can stably transmit torque when rotating, and will not hinder the push cylinder 309 from sliding along its axial direction. Therefore, the push cylinder 309 will rotate synchronously with the transmission rod 311, thereby driving the rotating frame 401 and multiple scrapers 402 to rotate. At this time, the scrapers 402 move in a circular motion inside the material box 2, turning the bearing steel balls and polishing powder at the bottom of the material box 2 upward, breaking the static accumulation state of the material, so that the bearing steel balls and polishing powder are initially mixed and generate relative friction.

[0025] On the other hand, when the worm gear 302 rotates with the worm 303, it drives the two outer eccentric wheels 304 to rotate eccentrically in sync via the short shaft. The eccentric motion of the eccentric wheels 304 further drives the linkage frame 307 to pull or push the swing frame 305 to reciprocate vertically around the support via the connecting rod 306. During the swing of the swing frame 305, the push block 308 on its inner sidewall slides along the annular push rail 310 on the outer side of the push cylinder 309. Since the annular push rail 310 is fixedly connected to the push cylinder 309, the sliding of the push block 308 will drive the push cylinder 309 to move vertically reciprocally along the axis of the transmission rod 311. This movement will be synchronously transmitted to the rotating frame 401 and the scraper 402, so that the scraper 402, while maintaining its rotation, will also obtain an additional up-and-down motion trajectory.

[0026] Under this combined rotation and lifting motion, the scraper 402 can not only turn the material radially along the material box 2, but also stir the material at different heights vertically. When rising, it can lift the lower layer of material to the upper layer, and when falling, it can press the upper layer of material to the lower layer, completely avoiding the phenomenon of "layered static" material in the material box 2. This ensures that each bearing steel ball can fully contact the polishing powder, and the collision and friction frequency between the bearing steel balls is greatly increased, providing a foundation for the polishing effect. At the same time, during the lifting and rotation process, the pusher cylinder 309 always slides along the shaft cylinder 5 at the center of the material box 2. The shaft cylinder 5 provides a stable guide for the pusher cylinder 309, effectively preventing the pusher cylinder 309 from deviating or shaking due to the combined motion, ensuring the precise movement trajectory of the rotating frame 401 and the scraper 402, and avoiding collision with the inner wall of the material box 2.

[0027] While the rotary shovel assembly performs its "rotation + lifting" motion, the motor 9 on the side support of the support base 1 starts, and the gear 10 at its output end meshes with the annular toothed plate 8 at the bottom of the material box 2, thereby driving the material box 2 to move as a whole. At this time, the annular slide bar 7 at the bottom of the material box 2 slides along the annular track 6 at the top of the support base 1. The cooperation between the annular track 6 and the annular slide bar 7 not only provides stable support for the material box 2, but also reduces the frictional resistance when the material box 2 rotates, ensuring that the material box 2 can smoothly perform circumferential deflection.

[0028] The key is that the rotation direction of the material bin 2 is opposite to that of the rotating frame 401. This reverse motion creates the effect of "reverse linkage between the material container and the mixing component": On the one hand, the reverse rotation of the material bin 2 will cause the bearing steel balls and polishing powder inside to produce a circular motion opposite to the rotation direction of the scraper 402, which significantly increases the relative speed between the bearing steel balls and polishing powder, and between the bearing steel balls and the scraper 402, further increasing the friction intensity and thus accelerating the polishing process of the bearing steel ball surface; on the other hand, the reverse motion can avoid the problem of "material following inertia" caused by unidirectional motion. If the material bin 2 and the rotating frame 401 rotate in the same direction, some materials may move synchronously with the container due to inertia, resulting in insufficient mixing. The reverse motion can break this inertia, keeping the material in a dynamic disordered state, so that each bearing steel ball can be evenly coated with polishing powder and fully rubbed.

[0029] Throughout the polishing process, the feed inlet of material bin 2 is always blocked by a partition. This effectively prevents material from overflowing from the feed inlet during vigorous stirring and circular motion, ensuring that the bearing steel balls and polishing powder in material bin 2 maintain sufficient contact and avoiding material loss that could affect polishing efficiency and results. After the polishing operation is completed, motors 1 and 2 can be turned off first. After material bin 2, rotating frame 401, and scraper 402 have completely stopped moving, the discharge port partition on the side wall of material bin 2 can be opened. At this time, the polished bearing steel balls and used polishing powder can be discharged from the discharge port by tilting material bin 2 or by slightly rotating scraper 402, completing the entire operation process.

[0030] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A bearing steel ball surface polishing device, comprising a support base (1), characterized in that, The top of the support base (1) is provided with a hopper (2) for holding bearing steel balls and polishing powder. The inside of the hopper (2) is provided with a rotary shovel assembly for stirring the bearing steel balls and polishing powder. The bottom of the inner wall of the support base (1) is provided with a drive assembly for driving the rotary shovel assembly to perform compound motion.

2. The bearing steel ball surface polishing equipment according to claim 1, characterized in that, The drive assembly includes a housing (301) fixed to the bottom of the inner wall of the support base (1). A worm gear (302) is movably connected to the inner side wall of the housing (301) via a bearing. A worm (303) is movably connected to the bottom wall of the housing (301) via a bearing. The worm gear (302) and the worm (303) form a mating relationship to realize power transmission.

3. The bearing steel ball surface polishing equipment according to claim 2, characterized in that, Two eccentric wheels (304) are provided on the outside of the chassis (301). The side wall of the eccentric wheel (304) is fixedly connected to the worm gear (302) through a short shaft. A bracket is fixedly connected to the top of the chassis (301). A swing frame (305) is rotatably connected inside the bracket. A connecting rod (306) is rotatably connected to the outer wall of the swing frame (305). A linkage circular frame (307) is fixedly connected to the bottom end of the connecting rod (306). The linkage circular frame (307) is sleeved on the outside of the eccentric wheel (304). The linkage circular frame (307) and the eccentric wheel (304) are movably connected through a bearing. The inner wall of the swing frame (305) is fixedly connected to a push block (308). The worm (303) extends to the top of the housing (301) and is fixedly connected to a transmission rod (311) with a regular polygonal cross-section. The bottom end of the transmission rod (311) is sleeved with a push cylinder (309) that can slide along its axial direction. The bottom end of the push cylinder (309) is fixedly connected to the bottom of the rotating frame (401) included in the rotating shovel assembly.

4. The bearing steel ball surface polishing equipment according to claim 3, characterized in that, The outer side of the pusher cylinder (309) is fixedly connected to an annular pusher rail (310), and the pusher block (308) is slidably connected to the outer side of the annular pusher rail (310).

5. The bearing steel ball surface polishing equipment according to claim 3, characterized in that, The rotary shovel assembly also includes multiple scrapers (402) fixed at the bottom of the rotary frame (401), and a shaft cylinder (5) is fixedly installed at the center of the inside of the material box (2), and the pusher cylinder (309) is slidably connected inside the shaft cylinder (5).

6. The bearing steel ball surface polishing equipment according to claim 2, characterized in that, The top of the support base (1) is fixedly connected to an annular track (6), the bottom of the material box (2) is fixedly installed with an annular slide (7) and an annular toothed plate (8), the side wall of the support base (1) is fixedly connected to a support, the top of the support is fixedly installed with a motor (9), the output end of the motor (9) is fixedly connected to a gear (10) that meshes with the annular toothed plate (8), and the bottom of the outer side of the machine box (301) is fixedly installed with a motor (2) for driving the worm (303) to rotate.

7. The bearing steel ball surface polishing equipment according to claim 1, characterized in that, The top and side walls of the material box (2) are respectively provided with an inlet and an outlet, and both the inlet and outlet are sealed with partitions.

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