High-efficiency polishing device for bearing ring side wall and end face

Abstract

This invention discloses a high-efficiency grinding device for the sidewalls and end faces of bearing rings, comprising a lathe body. A first grinding mechanism, a second grinding mechanism, a drive mechanism, and a cooling mechanism are disposed on the upper end of the lathe body. The first grinding mechanism includes a fixed table, a first chuck, and a first grinding pestle, and is fixedly mounted on the upper end face of the lathe body. The second grinding mechanism includes a slide rail, a pneumatic slide, a second chuck, and a second grinding pestle, and is movably mounted on the upper end face of the lathe body. This invention has the advantages of high grinding efficiency and energy saving and environmental protection, solving the problems of low grinding efficiency caused by multiple clamping and repositioning in traditional bearing ring grinding methods, and waste of cutting fluid or affecting grinding quality due to excessive or insufficient cutting fluid supply during grinding.

Description

Technical Field

[0001] This invention relates to the field of bearing ring processing equipment technology, specifically a high-efficiency grinding device for the sidewalls and end faces of bearing rings. Background Technology

[0002] In traditional bearing ring grinding processes, a single grinding mechanism is typically used. This means that different surfaces of the bearing require multiple clamping and repositioning steps to complete the grinding process. This step-by-step grinding method is not only inefficient but also prone to introducing cumulative errors, affecting the quality of the final product.

[0003] In traditional grinding processes, frequent changes in workpiece position are required to grind different surfaces, which not only consumes a lot of manpower and time but also increases production costs. Improper use or waste of coolant not only increases material costs but may also cause environmental problems. Therefore, a high-efficiency grinding device for bearing ring sidewalls and end faces is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency grinding device for the sidewalls and end faces of bearing rings, which has the advantages of high grinding efficiency, energy saving and environmental protection. It solves the problems of low grinding efficiency caused by multiple clamping and repositioning in traditional bearing ring grinding methods, and waste of cutting fluid or affecting grinding quality due to excessive or insufficient supply of cutting fluid during the grinding process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency grinding device for the sidewalls and end faces of bearing rings, comprising a lathe body, wherein a first grinding mechanism, a second grinding mechanism, a drive mechanism and a cooling mechanism are provided at the upper end of the lathe body; The first grinding mechanism includes a fixed table, a first chuck, and a first grinding pestle, and the first grinding mechanism is fixedly installed on the upper end face of the lathe body; The second grinding mechanism includes a slide rail, a pneumatic slide table, a second chuck, and a second grinding pestle. The second grinding mechanism is movably mounted on the upper surface of the lathe body. The drive mechanism includes a hanger, a motor, and a drive wheel, and the drive mechanism is movably mounted on the side end face of the pneumatic slide. The cooling mechanism includes a suction component and a spraying component that cooperate with the drive mechanism. A cutting fluid reservoir that communicates with the suction component is provided inside the pneumatic slide. The cooling mechanism is installed in the hanger.

[0006] In a preferred embodiment of the high-efficiency grinding device for the sidewalls and end faces of bearing rings according to the present invention, the first chuck is fixedly installed on the side of the fixed table near the second grinding mechanism, and the first chuck is provided with a first jaw. The first grinding pestle is detachably installed on the side of the first jaw near the center of the first chuck. The second chuck is fixedly installed on the side of the pneumatic slide table near the first chuck, and the second chuck is provided with a second jaw. The second grinding pestle is detachably installed on the side of the second jaw away from the center of the second chuck. The side view centers of the first chuck and the second chuck coincide, and the first jaw and the second jaw are staggered to avoid interference between the first grinding pestle and the second grinding pestle.

[0007] As a preferred embodiment of the high-efficiency grinding device for the sidewalls and end faces of bearing rings according to the present invention, the first grinding pestle and the second grinding pestle include a central shaft, a grinding bushing, a grinding wheel, and a fixing nut. The grinding bushing and the central shaft are rotatably connected by a damping bearing, the outer end face of the central shaft is provided with an external thread, the fixing nut is threadedly connected to the central shaft, and the outer end face of the grinding bushing and the side end face of the grinding wheel are provided with an abrasive coating.

[0008] As a preferred embodiment of the high-efficiency grinding device for the sidewalls and end faces of bearing rings according to the present invention, the side end face of the grinding wheel is provided with an arc-shaped flange.

[0009] As a preferred embodiment of the high-efficiency grinding device for the sidewalls and end faces of bearing rings according to the present invention, the top of the pneumatic slide is provided with a telescopic cylinder, the hanger is fixedly installed at the bottom of the telescopic cylinder, and the motor and the drive wheel are connected by a synchronous belt and a synchronous pulley for transmission.

[0010] As a preferred embodiment of the high-efficiency grinding device for the sidewall and end face of bearing rings according to the present invention, the suction assembly includes a suction sleeve, a suction piston and a connecting rod. The suction piston is installed inside the suction sleeve and slidably connected thereto. The bottom of the suction sleeve is provided with a feed pipe and a discharge pipe, and a one-way valve is provided inside the feed pipe and the discharge pipe.

[0011] As a preferred embodiment of the high-efficiency grinding device for the sidewall and end face of bearing rings according to the present invention, a transmission wheel is provided on the output shaft of the motor, the top of the connecting rod is rotatably connected to the side end face edge of the transmission wheel, and the bottom of the connecting rod is rotatably connected to the suction piston.

[0012] As a preferred embodiment of the high-efficiency grinding device for the sidewalls and end faces of bearing rings according to the present invention, the spraying assembly includes a main nozzle, an auxiliary nozzle, and a swaying plate. The main nozzle and the auxiliary nozzle are connected in a through-hole to the discharge pipe. The main nozzle is located at the upper end of the drive wheel and a guide plate is provided inside the main nozzle. The auxiliary nozzle is installed at the lower end of the swaying plate, and the swaying plate is movably connected to the hanger.

[0013] In a preferred embodiment of the high-efficiency grinding device for the sidewalls and end faces of bearing rings according to the present invention, the sway plate and the hanger are rotatably connected by a torsion spring, the side end face of the hanger is provided with a rotatably connected cam, the cam is driven by a gear meshing transmission with the drive wheel, and the lower end face of the sway plate is provided with a ball bearing that slides in contact with the cam.

[0014] In a preferred embodiment of the high-efficiency grinding device for the sidewalls and end faces of bearing rings according to the present invention, the guide plate is a plurality of evenly arranged inclined thin plates, and the width of the main nozzle is equal to the width of the drive wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention utilizes a dual-grinding mechanism working in tandem. The first and second grinding mechanisms are responsible for grinding the inner and outer sides of the bearing, respectively, enabling simultaneous processing of the inner wall, outer wall, and both end faces of the bearing ring. The first grinding pestle is fixed and presses against the inner wall of the bearing via a first chuck, while the second grinding pestle presses against the outer end face of the bearing via a second chuck. The grinding wheels on the first and second grinding pestles clamp the side walls of the bearing. The cooperation of multiple grinding mechanisms greatly improves the grinding efficiency of the bearing ring. Furthermore, the side end faces of the grinding wheels have arc-shaped flanges, which enhance the fit between the grinding wheels and the bearing edge, reduce grinding dead angles, and ensure the grinding quality and surface finish at the rounded corners of the bearing ring edge.

[0016] 2. This invention achieves comprehensive cooling and lubrication through the combination of a main nozzle and a swinging auxiliary nozzle, overcoming the problem of excessive heat generation during multi-faceted grinding. The main nozzle is located above the drive wheel and is used to directly cool the upper end face and left and right sides of the drive wheel and bearing. The auxiliary nozzle is installed on a swinging plate to perform swinging spraying, ensuring that the cutting fluid can be sprayed to the connection between the inner end face of the bearing and the first grinding pestle. This design ensures that the coolant can evenly cover all areas that need cooling, improving the cooling effect and lubrication performance during the grinding process and ensuring the grinding quality of each end face of the bearing.

[0017] 3. The suction piston in the suction assembly is connected to the output shaft of the motor, so that the reciprocating motion of the suction piston is synchronized with the motor speed. This controls the spray flow of the cutting fluid to be proportional to the rotation speed during grinding. This linkage mechanism ensures that the supply of cutting fluid can intelligently match the grinding needs during the grinding of bearings of different materials. This avoids excessive consumption of coolant and ensures the cooling effect during the grinding process, effectively maintaining the grinding quality. By precisely controlling the amount of cutting fluid used, unnecessary waste is avoided, production costs are reduced, and environmental performance is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram showing the cooperation state of the first grinding mechanism and the second grinding mechanism of the present invention; Figure 3 For the present invention Figure 2 Enlarged view at point B in the middle; Figure 4 This is a cross-sectional view of the first and second grinding mechanisms of the present invention in a mating state. Figure 5 For the present invention Figure 4 Enlarged view at point C; Figure 6 For the present invention Figure 5 Enlarged view at point D; Figure 7 For the present invention Figure 5 Enlarged view at point E in the middle; Figure 8 This is a cross-sectional view of the first grinding pestle of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of point F in the middle.

[0019] In the diagram: 1. Lathe body; 2. First grinding mechanism; 201. Fixed table; 202. First chuck; 203. First grinding pestle; 2031. Central shaft; 2032. Grinding bushing; 2033. Grinding wheel; 2034. Fixed nut; 2035. Arc-shaped flange; 204. First gripper; 3. Second grinding mechanism; 301. Slide rail; 302. Pneumatic slide table; 303. Second chuck; 304. Second grinding pestle; 305. Second gripper; 306. Telescopic cylinder; 4. Drive mechanism; 401. Motor; 402. Drive wheel; 403. Hanger; 5. Cooling mechanism; 501. Suction assembly; 5011. Suction sleeve; 5012. Suction piston; 5013. Connecting rod; 5014. Transmission wheel; 5015. Feed pipe; 5016. Discharge pipe; 5017. One-way valve; 502. Spraying assembly; 5021. Main nozzle; 5022. Auxiliary nozzle; 5023. Swing plate; 5024. Cam; 5025. Guide plate; 5026. Torsion spring; 5027. Ball bearing. Detailed Implementation

[0020] Example 1

[0021] Please see Figures 1-9 A high-efficiency grinding device for the sidewalls and end faces of bearing races includes a lathe body 1, and a first grinding mechanism 2, a second grinding mechanism 3, a drive mechanism 4 and a cooling mechanism 5 are provided at the upper end of the lathe body 1. The first grinding mechanism 2 includes a fixed table 201, a first chuck 202 and a first grinding pestle 203, and the first grinding mechanism 2 is fixedly installed on the upper end face of the lathe body 1; The second grinding mechanism 3 includes a slide rail 301, a pneumatic slide table 302, a second chuck 303, and a second grinding pestle 304. The second grinding mechanism 3 is movably installed on the upper end face of the lathe body 1. The drive mechanism 4 includes a hanger 403, a motor 401, and a drive wheel 402. The drive mechanism 4 is movably mounted on the side end face of the pneumatic slide table 302. The cooling mechanism 5 includes a suction assembly 501 and a spraying assembly 502 that cooperate with the drive mechanism 4. A cutting fluid reservoir that communicates with the suction assembly 501 is provided in the pneumatic slide 302. The cooling mechanism 5 is installed in the hanger 403.

[0022] Furthermore, the first chuck 202 is fixedly installed on the fixed table 201 near the side of the second grinding mechanism 3. The first chuck 202 is provided with a first gripper 204. The first grinding pestle 203 is detachably installed on the side of the first gripper 204 near the center of the first chuck 202. The second chuck 303 is fixedly installed on the side of the pneumatic slide table 302 near the first chuck 202. The second chuck 303 is provided with a second gripper 305. The second grinding pestle 304 is detachably installed on the side of the second gripper 305 away from the center of the second chuck 303. The side view centers of the first chuck 202 and the second chuck 303 coincide, and the first gripper 204 and the second gripper 305 are staggered to avoid interference between the first grinding pestle 203 and the second grinding pestle 304.

[0023] The bearing is fitted onto the first grinding pestle 203. The first chuck 202 expands the bearing, causing the first grinding pestle 203 to press against the inner wall of the bearing ring, thus facilitating subsequent grinding. The second grinding pestle 304 is then slid to the outside of the bearing ring by the pneumatic slide table 302. The second chuck 303 retracts, causing it to press against the outer end face of the bearing ring, thus facilitating grinding.

[0024] Furthermore, the first grinding pestle 203 and the second grinding pestle 304 include a central shaft 2031, a grinding bushing 2032, a grinding wheel 2033, and a fixing nut 2034. The grinding bushing 2032 is rotatably connected to the central shaft 2031 and the grinding wheel 2033 is rotatably connected to the central shaft 2031 through a damping bearing. The outer end face of the central shaft 2031 is provided with an external thread. The fixing nut 2034 is threadedly connected to the central shaft 2031. The outer end face of the grinding bushing 2032 and the side end face of the grinding wheel 2033 are provided with an abrasive coating.

[0025] The inner end face of the bearing is ground by the grinding bushing 2032 on the first grinding pestle 203, the left side of the bearing is ground by the grinding wheel 2033, the outer end face of the bearing is ground by the grinding bushing 2032 on the second grinding pestle 304, and the right side of the bearing is ground by the grinding wheel 2033. This achieves comprehensive grinding of the bearing inside and out as well as both sides, greatly improving the grinding efficiency of the bearing.

[0026] Furthermore, the side end face of the grinding wheel 2033 is provided with an arc-shaped flange 2035.

[0027] The arc-shaped flange 2035 improves the fit between the grinding wheel 2033 and the rounded corner of the bearing ring edge, thereby improving the grinding effect of the bearing ring and reducing grinding dead angles.

[0028] Furthermore, a telescopic cylinder 306 is provided on the top of the pneumatic slide table 302, and a hanger 403 is fixedly installed at the bottom of the telescopic cylinder 306. The motor 401 and the drive wheel 402 are connected by a synchronous belt and a synchronous pulley.

[0029] The drive wheel 402 is rotated by the motor 401, and the drive mechanism 4 is driven to slide downward by the pneumatic slide table 302 until the drive wheel 402 contacts the top of the bearing ring, so that the drive wheel 402 drives the bearing ring to rotate, and friction occurs between the bearing ring and the first grinding pestle 203 and the second grinding pestle 304, thereby achieving the grinding of the bearing ring.

[0030] Furthermore, the suction assembly 501 includes a suction sleeve 5011, a suction piston 5012, and a connecting rod 5013. The suction piston 5012 is installed inside the suction sleeve 5011 and slidably connected thereto. The bottom of the suction sleeve 5011 is provided with a feed pipe 5015 and a discharge pipe 5016. A one-way valve 5017 is provided inside the feed pipe 5015 and the discharge pipe 5016.

[0031] The connecting rod 5013 drives the suction piston 5012 to move. When the suction piston 5012 moves upward, the feed pipe 5015 draws in coolant. When the suction piston 5012 moves downward, the discharge pipe 5016 discharges coolant downward, thereby supplying material to the spraying mechanism.

[0032] Furthermore, a transmission wheel 5014 is provided on the output shaft of the motor 401, the top of the connecting rod 5013 is rotatably connected to the side end edge of the transmission wheel 5014, and the bottom of the connecting rod 5013 is rotatably connected to the suction piston 5012.

[0033] Since bearings made of different materials require different grinding speeds, the transmission wheel 5014 is driven to rotate by the motor 401. Each rotation of the transmission wheel 5014 drives the suction piston 5012 to move up and down once, thereby completing one feeding action. This ensures that the flow rate of the coolant is proportional to the speed of the drive wheel 402, avoiding waste caused by a continuously high flow rate of coolant or insufficient coolant to meet the grinding requirements.

[0034] Furthermore, the spraying assembly 502 includes a main nozzle 5021, an auxiliary nozzle 5022, and a swaying plate 5023. The main nozzle 5021 and the auxiliary nozzle 5022 are connected through the discharge pipe 5016. The main nozzle 5021 is located at the upper end of the drive wheel 402. A guide plate 5025 is provided inside the main nozzle 5021. The auxiliary nozzle 5022 is installed at the lower end of the swaying plate 5023. The swaying plate 5023 is movably connected to the hanger 403.

[0035] The main nozzle 5021 sprays downwards onto the drive wheel 402, causing the coolant to cool and lubricate the upper end face and left and right sides of the bearing along the drive wheel 402. The auxiliary nozzle 5022 sprays onto the connection between the inner end face of the bearing and the first grinding pestle 203. Since the bearings are of different sizes and widths, the auxiliary nozzle 5022 is oscillated by the swing plate, so that it can adapt to bearings of different specifications.

[0036] Furthermore, the swing plate 5023 is rotatably connected to the hanger 403 via a torsion spring 5026. The side end face of the hanger 403 is provided with a rotatably connected cam 5024. The cam 5024 is driven by the drive wheel 402 through gear meshing. The lower end face of the swing plate 5023 is provided with a ball bearing 5027 that slides in contact with the cam 5024.

[0037] When the drive wheel 402 rotates, it drives the cam 5024 to rotate through the gear, thereby causing the cam 5024 to drive the rocker plate 5023 to swing up and down, increasing the spray range of the nozzle and enabling it to adapt to bearing rings of different sizes, achieving full lubrication and heat dissipation of the bearing.

[0038] Furthermore, the guide plate 5025 consists of several evenly arranged inclined thin plates, and the width of the main nozzle 5021 is equal to the width of the drive wheel 402.

[0039] The guide plate 5025 disperses the cutting fluid sprayed by the main nozzle 5021 to both sides, thereby further increasing the coverage of the cutting fluid, improving the cooling and lubrication effects, and improving the grinding accuracy.

[0040] When using this equipment, the bearing ring is fitted onto the first grinding pestle 203. The first chuck 202 expands, causing the first grinding pestle 203 to press against the inner wall of the bearing ring, thereby stabilizing the bearing. The pneumatic slide table 302 is slid to the appropriate position, so that the grinding wheels 2033 on the first grinding pestle 203 and the second grinding pestle 304 clamp the two sides of the bearing. At the same time, the second grinding pestle 304 is aligned with the outer side of the bearing ring. Then, the second chuck 303 retracts, pressing against the outer end face of the bearing ring to ensure the bearing is correctly positioned. After ensuring all safety measures are in place, the motor 401 is powered on, and the telescopic cylinder 306 drives the hanger 403 to move downwards until the transmission wheel 5014 aligns with the shaft. The bearing ring contacts the top and rotates via the transmission wheel 5014, causing it to rub against the first grinding pestle 203 and the second grinding pestle 304, thus grinding the bearing ring. During the rotation of the motor 401, the transmission wheel 5014 drives the suction piston 5012 to move up and down reciprocally, thereby drawing in the cutting fluid and sending it to the main nozzle 5021 and the auxiliary nozzle 5022 for spraying. The cutting fluid sprayed from the main nozzle 5021 sprays the outer side and left and right sides of the bearing ring, while the auxiliary nozzle 5022 moves up and down under the action of the cam 5024 and the rocker plate 5023, spraying the inner end face of the bearing ring, thereby achieving all-round lubrication and cooling of the bearing and improving the grinding effect.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-efficiency grinding device for the sidewalls and end faces of bearing rings, comprising a lathe body (1), characterized in that: The upper end of the lathe body (1) is provided with a first grinding mechanism (2), a second grinding mechanism (3), a drive mechanism (4) and a cooling mechanism (5). The first grinding mechanism (2) includes a fixed table (201), a first chuck (202) and a first grinding pestle (203), and the first grinding mechanism (2) is fixedly installed on the upper end face of the lathe body (1); The second grinding mechanism (3) includes a slide rail (301), a pneumatic slide table (302), a second chuck (303), and a second grinding pestle (304). The second grinding mechanism (3) is movably installed on the upper surface of the lathe body (1). The drive mechanism (4) includes a hanger (403), a motor (401), and a drive wheel (402). The drive mechanism (4) is movably mounted on the side end face of the pneumatic slide (302). The cooling mechanism (5) includes a suction assembly (501) and a spraying assembly (502) that cooperate with the drive mechanism (4), and the cooling mechanism (5) is installed in the hanger (403).

2. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 1, characterized in that: The first chuck (202) is fixedly installed on the side of the fixed table (201) near the second grinding mechanism (3). The first chuck (202) is provided with a first gripper (204). The first grinding pestle (203) is detachably installed on the side of the first gripper (204) near the center of the first chuck (202). The second chuck (303) is fixedly installed on the side of the pneumatic slide (302) near the first chuck (202). The second chuck (303) is provided with a second gripper (305). The second grinding pestle (304) is detachably installed on the side of the second gripper (305) away from the center of the second chuck (303).

3. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 2, characterized in that: The first grinding pestle (203) and the second grinding pestle (304) include a central shaft (2031), a grinding bushing (2032), a grinding wheel (2033), and a fixing nut (2034). The grinding bushing (2032) is rotatably connected to the central shaft (2031) and the grinding wheel (2033) is rotatably connected to the central shaft (2031) through a damping bearing. The outer end face of the central shaft (2031) is provided with an external thread. The fixing nut (2034) is threadedly connected to the central shaft (2031). The outer end face of the grinding bushing (2032) and the side end face of the grinding wheel (2033) are provided with an abrasive coating.

4. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 3, characterized in that: The side end face of the grinding wheel (2033) is provided with an arc-shaped flange (2035).

5. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 1, characterized in that: The pneumatic slide (302) is equipped with a telescopic cylinder (306) at its top, and the hanger (403) is fixedly installed at the bottom of the telescopic cylinder (306). The motor (401) and the drive wheel (402) are connected by a synchronous belt and a synchronous pulley.

6. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 1, characterized in that: The suction assembly (501) includes a suction sleeve (5011), a suction piston (5012), and a connecting rod (5013). The suction piston (5012) is installed inside the suction sleeve (5011) and slidably connected thereto. The bottom of the suction sleeve (5011) is provided with a feed pipe (5015) and a discharge pipe (5016). A one-way valve (5017) is provided inside the feed pipe (5015) and the discharge pipe (5016).

7. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 6, characterized in that: A transmission wheel (5014) is provided on the output shaft of the motor (401). The top of the connecting rod (5013) is rotatably connected to the side end edge of the transmission wheel (5014), and the bottom of the connecting rod (5013) is rotatably connected to the suction piston (5012).

8. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 1, characterized in that: The spraying assembly (502) includes a main nozzle (5021), an auxiliary nozzle (5022), and a sway plate (5023). The main nozzle (5021) is located at the upper end of the drive wheel (402). A guide plate (5025) is provided inside the main nozzle (5021). The auxiliary nozzle (5022) is installed at the lower end of the sway plate (5023). The sway plate (5023) is movably connected to the hanger (403).

9. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 8, characterized in that: The rocker plate (5023) and the hanger (403) are rotatably connected by a torsion spring (5026). The side end face of the hanger (403) is provided with a rotatably connected cam (5024). The cam (5024) and the drive wheel (402) are driven by gear meshing. The lower end face of the rocker plate (5023) is provided with a ball (5027) that slides in contact with the cam (5024).

10. The high-efficiency grinding device for the sidewalls and end faces of bearing rings as described in claim 8, characterized in that: The guide plate (5025) is a number of evenly arranged inclined thin plates, and the width of the main nozzle (5021) is equal to the width of the drive wheel (402).

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