A bearing ball lapping sieve mechanism and lapping equipment thereof

Abstract

The application discloses a bearing ball lapping screen mechanism and a lapping device thereof, and relates to the technical field of bearing ball lapping, which comprises a lapping assembly for lapping the bearing balls, a discharge hopper is arranged at the lower end of the lapping assembly, the lapped bearing balls are discharged into a screen assembly through the discharge hopper, the screen assembly comprises a plurality of shaking screen plates, the screen plates screen the lapped bearing balls, the bearing balls meeting the standards are recycled, and the bearing balls not meeting the standards are left on the screen plates, the screen plates are dredged by dredging rods arranged in the screen assembly during the screening process, a recycling assembly is arranged at the side of the screen assembly, the recycling assembly takes down the screen plates from the screen assembly and recycles the bearing balls not meeting the standards in the screen plates, the bearing balls are screened by the plurality of screen plates, the screening efficiency of the bearing balls is improved, the bearing balls not meeting the standards are automatically recycled, and the production efficiency of the bearing balls is improved.

Description

Technical Field

[0001] This invention relates to the field of bearing ball precision grinding technology, and in particular to a screening mechanism and precision grinding equipment for bearing ball precision grinding. Background Technology

[0002] In the bearing manufacturing industry, the ball bearing, as the core load-bearing component, has a decisive impact on bearing performance, noise, and service life due to its surface quality and dimensional accuracy. Precision grinding of the ball bearing is one of the key processes in ball bearing production, aiming to achieve high-precision dimensions and surface finish through grinding. After precision grinding, the ball bearings need to be sieved to separate dimensionally acceptable products from defective products requiring rework or grinding residue.

[0003] Currently, the screening process after ball bearing grinding typically employs vibrating screens or drum screens. The screening disc has perforations of a specific diameter. As the balls roll or vibrate on the screen surface, balls smaller than the perforations pass through and fall into the lower collection container, while balls larger than the perforations remain on the screen surface and are separated. During the grinding process, grinding fluid, metal powder, and fine chips adhere to the surface of the balls, and these substances have a certain degree of adhesion. When the balls pass through the perforations of the screening disc, some balls with residue or accumulated powder easily clog the perforations, especially when processing small-diameter balls. The small perforation diameter means that even slight foreign matter can cause blockage, preventing qualified balls from falling properly, resulting in decreased screening accuracy and efficiency. After screening, unqualified balls or large balls remaining on the screen surface need to be removed from the screening disc and recycled. Traditional methods often involve manual dumping or shoveling, which can easily lead to the scattering, mixing, or leakage of the ball bearings. Furthermore, open-top operations can cause scratches or contamination on the ball bearing surfaces. In situations where multiple screening discs operate simultaneously, residues from different discs may cross-contaminate during the recycling process, affecting subsequent sorting and processing. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention discloses a screening mechanism and its precision grinding equipment for bearing balls.

[0005] A sieving mechanism for precision grinding of bearing balls includes a base two, a slidably mounted sieving frame on the base two, a placement plate on the sieving frame, multiple sets of sieving discs detachably mounted on the placement plate, and a sieving disc with a sieving hole. The sieving disc sieves the balls through the sieving hole. A mounting frame two is rotatably mounted on the sieving frame, and a clearing mechanism is mounted on the mounting frame two to clear the sieving hole on the sieving disc. The screening assembly has multiple sets of recycling components on its side. Each recycling component includes a base three, on which a mounting frame three is rotatably mounted. A pick-and-place rod is slidably mounted inside the mounting frame three. The pick-and-place rod is fixed to the screening disc to remove the screening disc from the placement plate. A sealing cover is also rotatably mounted on the mounting frame three to seal the screening disc. The mounting frame three drives the screening disc to rotate and place the ball bearings inside the screening disc into the recycling bin.

[0006] Furthermore, the placement tray is provided with multiple sets of electromagnet blocks, and the placement tray is fixed to the screening tray by the electromagnet blocks.

[0007] Furthermore, a connecting block is provided on the screening disc, and an electromagnet block is provided inside the pick-and-place rod. The pick-and-place rod is inserted into the connecting block and the screening disc is fixed by the electromagnet block.

[0008] Furthermore, a mounting frame is provided at the lower end of the placement tray, and a collection bucket is provided inside the mounting frame for collecting qualified balls.

[0009] Furthermore, a cam is rotatably mounted on the second base, which pushes the screening frame to move, and the screening frame reciprocates through the setting of a spring.

[0010] Furthermore, the unblocking mechanism includes an adjusting frame that is slidably mounted on the mounting frame two, an unblocking frame that is slidably mounted on the adjusting frame, and multiple sets of unblocking rods that are rotatably mounted on the unblocking frame, the diameter of the unblocking rods being smaller than the diameter of the holes on the screening disc.

[0011] A bearing ball grinding device includes a grinding component and a screening mechanism. The grinding component includes a base, a placement frame is provided on the base, a lower grinding disc is rotatably mounted on the placement frame, an upper grinding disc is slidably mounted on the upper end of the base, the upper grinding disc and the lower grinding disc are coaxially arranged, and a discharge hopper is rotatably mounted on the lower end of the placement frame, the discharge hopper being aligned with the screening disc.

[0012] Furthermore, a storage hopper is rotatably mounted on the placement frame, and a baffle is mounted on the lower grinding disc. Ball bearings are stored between the baffle and the storage hopper, and a feed inlet is provided on the baffle. The ball bearings enter the lower grinding disc through the feed inlet.

[0013] Furthermore, the lower grinding disc is provided with a discharge port, through which the balls fall onto the baffle and are discharged after finishing the grinding.

[0014] The beneficial effects of this invention compared with the prior art are as follows: This invention uses a screening component to screen the balls, removing larger balls. During the screening process, a dredging rod unclogs the holes on the screening disc, preventing blockage and ensuring the feeding speed of the screening disc. Changing the position of the screening disc allows for unblocking multiple screening discs. Furthermore, the recycling component removes the screening disc and takes out the residual balls. While flipping the disc, the top of the screening disc is sealed to prevent the balls from falling out. This invention improves the grinding and screening efficiency of the balls through automatic screening and material recycling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a front view of the overall structure of the present invention.

[0017] Figure 3 for Figure 2 Cross-sectional view of the structure along the AA direction.

[0018] Figure 4 This is a schematic diagram of the refined component structure of the present invention.

[0019] Figure 5 for Figure 4 Cross-sectional view of the structure in the BB direction.

[0020] Figure 6 This is a schematic diagram of a partial structure of the precision-engineered component of this invention.

[0021] Figure 7 This is a schematic diagram of the sieving component structure of the present invention.

[0022] Figure 8 for Figure 7 Cross-sectional view of the structure in the CC direction.

[0023] Figure 9 This is a partial structural diagram of the sieving component of the present invention.

[0024] Figure 10 This is a schematic diagram of the disk placement structure of the present invention.

[0025] Figure 11 This is a schematic diagram of the recycling component structure of the present invention.

[0026] Attached reference numerals: 1-Refining component; 2-Screening component; 3-Recycling component; 101-Base 1; 102-Electric cylinder 1; 103-Upper grinding disc; 104-Placement rack; 105-Storage hopper; 106-Discharge hopper; 107-Gear 1; 108-Motor 1; 109-Gear 2; 110-Lower grinding disc; 111-Ball bearing; 112-Discharge port; 113-Gear 3; 114-Motor 2; 115-Gear 4; 116-Baffle; 117-Inlet; 201-Base 2; 202-Screening rack; 203-Placement disc; 204-Screening disc; 205-Connecting block ; 206-Mounting bracket one; 207-Collection bucket; 208-Motor three; 209-Gear five; 210-Gear six; 211-Motor four; 212-Cam; 213-Spring; 214-Mounting bracket two; 215-Adjusting bracket; 216-Electric cylinder two; 217-Drainage rack; 218-Electric cylinder three; 219-Motor five; 220-Drainage rod; 301-Base three; 302-Recycling bucket; 303-Mounting bracket three; 304-Pick-and-place rod; 305-Electric cylinder four; 306-Sealing cover; 307-Motor six; 308-Gear seven; 309-Gear eight; 310-Motor seven. Detailed Implementation

[0027] refer to Figures 1 to 11 The invention illustrates a ball bearing grinding screening mechanism and its grinding equipment, comprising a grinding component 1 for grinding the balls 111 continuously. The finished balls 111 enter a screening component 2 through a discharge hopper 106. The screening component 2 is equipped with multiple screening discs 204. The screening discs 204 oscillate to screen the balls 111. During the screening process, balls 111 that do not meet the standards can easily clog the screening discs 204. The screening component 2 is equipped with multiple screening discs 204. Multiple sets of unblocking rods 220 unblock the screening disc 204. After screening, the remaining unqualified balls 111 on the screening disc 204 are removed by the recycling component 3 of this invention from the screening component 2 and the balls 111 on the screening disc 204 are recycled. This invention automatically grinds and screens the balls 111, and automatically removes the unqualified balls 111 after screening. Multiple sets of screening discs 204 work alternately to reduce equipment downtime and improve the grinding and screening efficiency of the balls 111.

[0028] refer to Figures 1 to 6As shown, the fine grinding component 1 includes a base 101, an electric cylinder 102 is provided on the upper end of the base 101, an upper grinding disc 103 is provided on the movable end of the electric cylinder 102, a placement rack 104 is provided on the side of the base 101, a storage hopper 105 and a lower grinding disc 110 are provided on the placement rack 104, the lower grinding disc 110 is rotatably connected to the placement rack 104 and the storage hopper 105, a baffle 116 is provided on the lower grinding disc 110, the baffle 116 is in contact with the storage hopper 105, the ball bearing 111 to be finely ground is placed between the baffle 116 and the storage hopper 105, the baffle 116 is provided with a feed inlet 117, and the ball bearing 111 enters the lower grinding disc 110 through the feed inlet 117.

[0029] A gear 113 is coaxially mounted on the lower grinding disc 110. A motor 114 is mounted inside the placement frame 104. A gear 115 is mounted on the output shaft of the motor 114. Gears 113 and 115 mesh. When the motor 114 starts, it drives the gear 115 to rotate. The gear 115 drives the gear 113 to rotate. The gear 113 drives the lower grinding disc 110 to rotate. A discharge port 112 is provided inside the lower grinding disc 110. After the balls 111 have completed fine grinding, they are discharged through the discharge port 112.

[0030] A discharge hopper 106 is rotatably mounted at the lower end of the placement frame 104. A gear 107 is coaxially mounted on the discharge hopper 106. A motor 108 is mounted on the side of the placement frame 104. A gear 109 is mounted on the output shaft of the motor 108. The gear 109 meshes with the gear 107. When the motor 108 starts, it drives the gear 107 and the discharge hopper 106 to rotate. The ball bearings 111 fall onto the discharge hopper 106 and then onto the screening disc 204.

[0031] refer to Figures 7 to 10 As shown, the screening assembly 2 includes a base 201, a screening frame 202 is slidably mounted on the base 201, a spring 213 is provided between the screening frame 202 and the base 201, a motor 211 is provided on the side of the base 201, a cam 212 is provided on the output shaft of the motor 211, the cam 212 is in contact with the screening frame 202, when the motor 211 starts, it drives the cam 212 to rotate, and the cam 212 pushes the screening frame 202 to slide on the base 201.

[0032] The upper end of the screening frame 202 is provided with a placement tray 203, and multiple screening trays 204 are detachably mounted on the placement tray 203. A connecting block 205 is provided on the side of the screening tray 204. An electromagnet block is provided inside the placement tray 203. The placement tray 203 fixes the screening tray 204 through the electromagnet block. Multiple sets of perforations are provided on the screening tray 204. The perforations of the screening tray 204 screen the balls 111. Balls 111 that meet the standard pass through the screening tray 204 and fall into the collection bucket 207 for collection. Balls 111 that do not meet the standard remain on the screening tray 204. The collection bucket 207 is mounted on the mounting frame 206. The mounting frame 206 is mounted on the lower end of the placement tray 203. The collection bucket 207 is aligned with the screening tray 204.

[0033] A mounting frame 214 is coaxially mounted on the screening frame 202. A motor 3 208 is mounted on one side of the mounting frame 214. A gear 5 209 is mounted on the output shaft of the motor 3 208. A gear 6 210 is mounted on the screening frame 202. Gear 5 209 meshes with gear 6 210. When the motor 3 208 starts, it drives gear 5 209 to rotate, which in turn drives the mounting frame 214 to rotate on the screening frame 202.

[0034] An adjusting frame 215 is slidably mounted on the other side of the mounting frame 214. An electric cylinder 216 is mounted at the lower end of the mounting frame 214. The movable end of the electric cylinder 216 is connected to the adjusting frame 215. When the electric cylinder 216 is started, it drives the adjusting frame 215 to slide on the mounting frame 214. A clearing frame 217 is slidably mounted on the adjusting frame 215. An electric cylinder 3 218 is mounted at the lower end of the adjusting frame 215. The movable end of the electric cylinder 3 218 is connected to the clearing frame 217. When the electric cylinder 3 218 is started, it drives the clearing frame 217 to slide on the adjusting frame 215. A motor 5 219 is mounted on the clearing frame 217. A clearing rod 220 is mounted on the output shaft of the motor 5 219. When the adjusting frame 215 moves, it drives the clearing rod 220 to move. The clearing rod 220 clears the holes on the screening disc 204. When the motor 5 219 is started, it drives the clearing rod 220 to rotate and adjust the position of the clearing rod 220.

[0035] refer to Figure 11 As shown, the recycling component 3 includes a base 301, a recycling bin 302 is provided on the side of the base 301, the recycling bin 302 is used to recycle unqualified balls 111, a mounting bracket 303 is rotatably mounted on the base 301, a gear 8 309 is provided on the rotating shaft of the mounting bracket 303, a motor 7 310 is provided on the side of the base 301, a gear 7 308 is provided on the output shaft of the motor 7 310, the gear 7 308 meshes with the gear 8 309, when the motor 7 310 starts, it drives the gear 7 308 to rotate, the gear 7 308 drives the gear 8 309 and the mounting bracket 303 to rotate.

[0036] A pick-and-place rod 304 is slidably installed inside the mounting frame 303. An electromagnet block is installed inside the pick-and-place rod 304. The pick-and-place rod 304 is inserted into the connecting block 205 and the screening disc 204 is fixed by the electromagnet block. An electric cylinder 4 305 is installed on the side of the mounting frame 303. The movable end of the electric cylinder 4 305 is connected to the pick-and-place rod 304. When the electric cylinder 4 305 is started, it drives the pick-and-place rod 304 to slide inside the mounting frame 303. A motor 6 307 is installed on the mounting frame 303. The output shaft of the motor 6 307 is connected to the sealing cover 306. The sealing cover 306 is rotatably installed on the mounting frame 303. When the motor 6 307 is started, it drives the sealing cover 306 to rotate, and the sealing cover 306 seals the top of the screening disc 204.

[0037] Working principle: During operation, the ball bearings 111 to be finely ground are placed between the storage hopper 105 and the baffle 116. Electric cylinder 102 is activated, causing the upper grinding disc 103 to move closer to the lower grinding disc 110. The pressure of the upper grinding disc 103 is controlled according to the fine-grinding requirements. After adjusting the position and pressure of the upper grinding disc 103, motor 2 114 is activated. Motor 2 114 drives gear 4 115 to rotate, which in turn drives gear 3 113 and the lower grinding disc 110 to rotate. The lower grinding disc 110 then drives the baffle 116 to rotate. During the rotation of the lower grinding disc 110, the balls 111 enter the lower grinding disc 110 through the feed inlet 117. After the balls 111 have completed the fine grinding, they fall into the discharge hopper 106 through the discharge outlet 112. The discharge hopper 106 conveys the balls 111 to the screening disc 204. When it is necessary to adjust the discharge position of the discharge hopper 106, the motor 108 is started. The motor 108 drives the gear 109 to rotate. The gear 109 drives the discharge hopper 106 to rotate through the gear 107. The discharge hopper 106 discharges materials to multiple screening discs 204 in batches. After the ball bearing 111 falls onto the screening disc 204, the motor 211 is started. The motor 211 drives the cam 212 to rotate. The cam 212 drives the screening frame 202 to slide on the base 201. Due to the setting of the spring 213, the screening frame 202 slides back and forth on the base 201. The screening frame 202 drives the placement disc 203 and multiple screening discs 204 to shake. The screening discs 204 screen the ball bearing 111. The ball bearing 111 that meets the standard falls into the collection bucket 207 through the screening disc 204, while the ball bearing 111 that does not meet the standard stays on the screening disc 204.

[0038] Because the larger ball bearings 111 can easily clog the screening disc 204, when clogging occurs, the electric cylinder 218 is activated. The electric cylinder 218 moves the unblocking frame 217, which in turn moves the unblocking rod 220 closer to the screening disc 204. When the unblocking rod 220 is aligned with the drain hole on the screening disc 204, the electric cylinder 216 is activated. The electric cylinder 216 moves the adjusting frame 215, which in turn moves the unblocking rod 220 into the drain hole of the screening disc 204, completing the unblocking. After one unblocking operation, the motor 219 is activated. The motor 219 rotates the unblocking rod 220, changing its position and unblocking all the drain holes on the screening disc 204.

[0039] When it is necessary to change the unblocking screen 204, start motor 3 208. Motor 3 208 drives gear 5 209 to rotate. Gear 5 209 rotates on gear 6 210. Gear 5 209 drives mounting frame 214 to rotate on screen frame 202. Mounting frame 214 drives unblocking rod 220 to move, thus completing the adjustment of the position of unblocking rod 220.

[0040] When it is necessary to remove the ball bearings 111 from the screening disc 204, stop the shaking of the placement disc 203, start the electric cylinder 305, which drives the pick-and-place rod 304 to move. The pick-and-place rod 304 is inserted into the connecting block 205. Activate the electromagnet block inside the pick-and-place rod 304 to fix the pick-and-place rod 304 to the screening disc 204. Turn off the electromagnet block inside the placement disc 203 to release the fixation between the placement disc 203 and the screening disc 204. Drive the pick-and-place rod 304 to reset, and the pick-and-place rod 304 removes the screening disc 204 from the placement disc 203. Start the motor 307, which drives the sealing... When the cover 306 rotates, it seals the top of the screening disc 204. Then, motor 310 is started, driving gear 308 to rotate. Gear 308 then drives gear 309 to rotate, which in turn drives mounting bracket 303 to rotate. Mounting bracket 303 aligns the screening disc 204 with the recycling bin 302. Then, motor 307 is started, moving the cover 306 and releasing it from the screening disc 204. At this point, the balls 111 inside the screening disc 204 fall into the recycling bin 302, completing the recycling of the balls 111.

Claims

1. A screening mechanism for precision grinding of bearing balls, characterized in that: Includes a base two (201), on which a screening frame (202) is slidably mounted, on which a placement plate (203) is mounted, on which multiple screening plates (204) are detachably mounted, on which the screening plates (204) are provided with holes, and the screening plates (204) screen the balls (111) through the holes. On the screening frame (202) a mounting frame two (214) is rotatably mounted, and on which a clearing mechanism is provided, and which clears the holes on the screening plates (204). The sieving component (2) is provided with multiple sets of recycling components (3) on its side. The recycling component (3) includes a base three (301). A mounting frame three (303) is rotatably provided on the base three (301). A pick-and-place rod (304) is slidably provided in the mounting frame three (303). The pick-and-place rod (304) is fixed to the sieving disc (204) to remove the sieving disc (204) from the placement disc (203). A sealing cover (306) is also rotatably provided on the mounting frame three (303). The sealing cover (306) seals the sieving disc (204). The mounting frame three (303) drives the sieving disc (204) to rotate and place the ball bearings in the sieving disc (204) into the recycling bin (302).

2. The sieving mechanism for precision grinding of bearing balls according to claim 1, characterized in that: The placement tray (203) is provided with multiple sets of electromagnet blocks, and the placement tray (203) is fixed to the screening tray (204) by the electromagnet blocks.

3. The sieving mechanism for precision grinding of bearing balls according to claim 2, characterized in that: A connecting block (205) is provided on the screening disc (204), and an electromagnet block is provided inside the pick-and-place rod (304). The pick-and-place rod (304) is inserted into the connecting block (205) and the screening disc (204) is fixed by the electromagnet block.

4. The sieving mechanism for precision grinding of bearing balls according to claim 3, characterized in that: The lower end of the placement tray (203) is provided with a mounting frame (206), and a collection bucket (207) is provided inside the mounting frame (206). The collection bucket (207) collects qualified balls (111).

5. A screening mechanism for precision grinding of bearing balls according to claim 4, characterized in that: A cam (212) is rotatably mounted on the base (201). The cam (212) pushes the screening frame (202) to move. The screening frame (202) slides back and forth through the setting of a spring (213).

6. A screening mechanism for precision grinding of bearing balls according to claim 5, characterized in that: The unblocking mechanism includes an adjusting frame (215) that is slidably mounted on the mounting frame (214). An unblocking frame (217) is slidably mounted on the adjusting frame (215). Multiple sets of unblocking rods (220) are rotatably mounted on the unblocking frame (217). The diameter of the unblocking rods (220) is smaller than the diameter of the holes on the screening disc (204).

7. A bearing ball grinding equipment, characterized in that: The device includes a fine grinding component (1) and a screening mechanism as described in any one of claims 1 to 6. The fine grinding component (1) includes a base (101), a placement frame (104) is provided on the base (101), a lower grinding disc (110) is rotatably provided on the placement frame (104), an upper grinding disc (103) is slidably provided on the upper end of the base (101), the upper grinding disc (103) and the lower grinding disc (110) are coaxially arranged, and a discharge hopper (106) is rotatably provided on the lower end of the placement frame (104), the discharge hopper (106) is aligned with the screening disc (204).

8. The bearing ball grinding equipment according to claim 7, characterized in that: The placement rack (104) is rotatably equipped with a storage hopper (105), and the lower grinding disc (110) is equipped with a baffle (116). Ball bearings (111) are stored between the baffle (116) and the storage hopper (105). The baffle (116) is equipped with a feed inlet (117), and the ball bearings (111) enter the lower grinding disc (110) through the feed inlet (117).

9. The bearing ball grinding equipment according to claim 8, characterized in that: The lower grinding disc (110) is provided with a discharge port (112). After the ball (111) has completed fine grinding, it falls through the discharge port (112) onto the baffle (116) and is discharged.

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