Polishing device for hub bearing steel ball machining

Abstract

The utility model discloses a polishing device for hub bearing steel ball machining. The polishing device comprises an installation machine shell, an outer polishing disc, an inner polishing disc, a feeding base and a discharging disc, wherein the outer polishing disc, the inner polishing disc, the feeding base and the discharging disc are coaxially arranged. The outer polishing disc is rotatably installed, the inner polishing disc can be adjusted in a lifting mode, and the feeding base and the discharging disc are fixed through a connecting shaft and arranged on the upper side and the lower side of the inner polishing disc respectively. The inner edge of the outer polishing disc is sequentially provided with a polishing cambered surface, a straight cylinder surface and a conical cylinder surface, and the outer edge of the inner polishing disc is provided with an annular polishing groove and an inclined feeding groove. The feeding seat is provided with a feeding shaft hole and a feeding inclined hole, and the discharging disc is provided with a discharging groove. In the working process, steel balls enter the polishing groove through the feeding base, are evenly polished through cooperation of the inner polishing disc and the outer polishing disc, and are automatically discharged into the discharging groove of the discharging disc through guiding of the conical barrel face. The device is compact in structure, high in automation degree, capable of improving the polishing efficiency and quality and suitable for precise machining of hub bearing steel balls.

Description

TECHNICAL FIELD

[0001] The utility model relates to hub bearing accessory processing technical field, specifically a kind of polishing device for hub bearing steel ball processing. BACKGROUND

[0002] As the key component of automobile transmission system, the performance of hub bearing directly affects the running stability and safety of vehicle. As the core rolling body of hub bearing, the surface finish, roundness and dimensional accuracy of steel ball have decisive effect on the load-carrying capacity, friction and wear performance and fatigue life of bearing. Therefore, in the steel ball processing process, polishing process is the key link to ensure that its surface quality meets the technical requirements.

[0003] Traditional steel ball polishing device adopts single polishing disc structure or simple double-disc pair grinding mode, and has the following technical defects:

[0004] 1. Inadequate polishing uniformity: in the polishing process of traditional device, the contact surface of steel ball and polishing disc is limited, which easily leads to uneven polishing, especially the two polar regions of steel ball are difficult to be effectively treated, affecting the overall surface quality.

[0005] 2. Low feeding and discharging efficiency: the existing equipment usually adopts mechanical hand or vibrating disc feeding, which has complex structure and is easy to jam, and needs to stop operation when discharging, reducing production efficiency.

[0006] 3. Difficult to dissipate heat and remove chips: if the heat and metal chips generated in the polishing process are not removed in time, it will aggravate the wear of polishing disc, even cause secondary scratch on the surface of steel ball, affecting the polishing effect.

[0007] 4. Poor adaptability: traditional device is difficult to flexibly adjust polishing parameters according to steel balls of different sizes, which limits the application range of process. INVENTION CONTENTS

[0008] In view of the above deficiencies in the prior art, the utility model aims to provide a kind of polishing device for hub bearing steel ball processing, realize the efficient, high-precision polishing of hub bearing steel ball, significantly improve production efficiency and product quality, and have outstanding practicability and market promotion value.

[0009] The utility model discloses a technical scheme adopted for realizing the above-mentioned purpose is: a kind of polishing device for hub bearing steel ball processing, including installation shell and the outer polishing disc, inner polishing disc, feeding seat, discharge tray that are coaxially arranged and are assembled in installation shell, the outer polishing disc is rotatably installed to installation shell, the inner polishing disc is arranged at the inside of outer polishing disc and is along vertical axis lifting movement, the feeding seat and discharge tray are fixed combination by connecting shaft and are respectively arranged at the upper and lower sides of the inner polishing disc, the connecting shaft is arranged through the axis of the inner polishing disc, the feeding seat, discharge tray is assembled to installation shell in the way of relative rotation, the bottom of outer polishing disc and the upper surface of discharge tray keep close.

[0010] The inner edge of the outer polishing disc is sequentially provided with a polishing curved surface, a straight cylindrical surface and a tapered cylindrical surface from top to bottom, the tapered cylindrical surface is arranged in a narrow upper and wide lower manner, the outer edge of the inner polishing disc is provided with polishing grooves arranged in an annular array, and the top of the inner polishing disc is provided with a feeding groove arranged obliquely downward and in communication with the polishing grooves.

[0011] A feeding shaft hole is formed at the axis of the feeding seat, a feeding inclined hole for connecting the feeding shaft hole and the feeding groove is formed in the sidewall of the feeding seat, and a plurality of discharge grooves arranged in an annular array are formed in the top outer edge of the discharge tray.

[0012] In the above technical scheme, in order to ensure that the components involved can be stably assembled in the installation shell and stably operate according to the set requirements, the following technical solutions are provided.

[0013] The installation shell comprises a shell body, a top cover and a bottom plate fixedly assembled to the upper and lower ends of the shell body, a partition disc is fixedly connected to the inner side of the shell body, the discharge tray is rotatably installed above the partition disc, a rotating ring seat is fixedly connected to the outer side of the outer polishing disc, the rotating ring seat is rotatably installed between the top cover and the shell body, and the top end of the feeding seat is rotatably installed at the axis of the top cover.

[0014] In the above technical scheme, in order to ensure that the outer polishing disc can stably rotate in the installation shell, the following technical solutions are provided.

[0015] Further comprising a driving motor A fixedly installed on the top cover, a driving bevel gear A is fixedly connected to the output shaft of the driving motor A, a connecting sleeve is fixedly connected to the top of the outer polishing disc, the feeding seat is arranged on the inner side of the connecting sleeve, a sealing ring seat that is in sealing contact with the connecting sleeve is fixedly connected to the bottom of the top cover, and a transmission bevel gear A that is in meshing connection with the driving bevel gear A is fixedly connected to the outer wall of the connecting sleeve.

[0016] On the basis of the above technical scheme, in order to ensure that the lifting movement of the inner polishing disc can cooperate with the feeding seat and the discharging disc to realize the stable lifting of the inner polishing disc within a specific stroke range, the following technical scheme is provided.

[0017] The top of the inner polishing disc is provided with a containing groove A, the bottom of the feeding seat is nested and matched with the containing groove A, the bottom of the discharging disc is provided with a containing groove B, and the bottom of the inner polishing disc is nested and matched with the containing groove B.

[0018] On the basis of the above technical scheme, in order to ensure that the feeding seat and the discharging disc can realize stable operation and realize the stable feeding and discharging of the steel balls, the following technical scheme is provided.

[0019] Further comprising a driving motor B fixedly installed on the bottom plate, a driving bevel gear B is fixedly connected to the output shaft of the driving motor B, a transmission bevel gear B is coaxially fixedly connected to the bottom of the discharging disc and arranged below the partition disc, the transmission bevel gear B is meshed with the driving bevel gear B, a feeding connector is arranged at the axial center of the top cover and is in butt joint with the feeding shaft hole, and a discharging connector is fixedly connected to the shell and is in butt joint with the discharging groove.

[0020] On the basis of the above technical scheme, in order to ensure that the inner polishing disc can be stably lifted along the vertical direction within a specific stroke range, the following technical scheme is provided.

[0021] Further comprising a hydraulic telescopic cylinder fixedly installed on the top cover and arranged in the vertical direction, and the movable end of the hydraulic telescopic cylinder is fixedly connected with the inner polishing disc.

[0022] The utility model discloses the beneficial effect:

[0023] 1. Efficient and uniform polishing, the outer polishing disc and the inner polishing disc are coaxially arranged, and the combination of the polishing arc surface and the polishing groove ensures that the steel balls are covered in multiple directions in the polishing groove, so that each area of the surface of the steel balls can fully contact the polishing surface, the polishing uniformity and precision are significantly improved, the inner polishing disc can adjust the fine spacing change with the polishing arc surface under the action of the hydraulic telescopic cylinder, so that the steel balls are uniformly affected by the polishing arc surface and the polishing groove during rotation, and the problem of inconsistent surface quality caused by traditional single-sided polishing is avoided.

[0024] 2. Automatic feeding and discharging, the linkage design of the feeding seat, the feeding inclined hole and the feeding groove realizes automatic conveying of the steel balls, avoids manual intervention, and improves production efficiency. The lifting adjustment function of the inner polishing disc in combination with the guiding effect of the conical surface enables the polished steel balls to automatically slide into the discharging groove, realizes continuous discharging, and reduces downtime.

[0025] 3. Compact structure, flexible adjustment, adopts segmented shell design of top cover, shell body and bottom plate, facilitates installation and maintenance of internal components. Hydraulic telescopic cylinder controls lifting of inner polishing disc, can quickly switch feeding, polishing and discharging stations, adapts to processing requirements of steel balls of different sizes, and improves universality of the equipment.

[0026] 4. Stable operation and convenient maintenance, the outer polishing disc is driven through meshing transmission of driving bevel gear A and transmission bevel gear A, the feeding seat and the discharging disc are driven through meshing transmission of driving bevel gear B and transmission bevel gear B, so that stable and reliable feeding and discharging operation is ensured. The discharging disc, the feeding seat and the inner polishing disc adopt a nesting structure of containing grooves, so that alignment accuracy is ensured and the risk of steel ball jamming is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the utility model;

[0028] Figure 2 It is a structural schematic view of the utility model;

[0029] Figure 3 It is a structural schematic view of the inner polishing disc;

[0030] Figure 4 It is a structural schematic view of the outer polishing disc, the inner polishing disc, the feeding seat and the discharging disc.

[0031] In the drawing: 1, installation shell, 11, shell body, 12, top cover, 13, bottom plate, 14, partition disc, 15, sealing ring seat, 16, feeding connector, 17, discharging connector, 2, outer polishing disc, 21, polishing arc surface, 22, straight cylinder surface, 23, tapered cylinder surface, 24, rotating ring seat, 25, connecting sleeve, 26, transmission bevel gear A, 3, inner polishing disc, 31, polishing groove, 32, feeding groove, 33, containing groove A, 41, feeding seat, 411, feeding shaft hole, 412, feeding inclined hole, 42, discharging disc, 421, discharging groove, 422, containing groove B, 423, transmission bevel gear B, 43, connecting shaft, 51, driving motor A, 511, driving bevel gear A, 52, driving motor B, 521, driving bevel gear B, 53, hydraulic telescopic cylinder. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0033] Please refer to Figures 1-4The utility model provides a kind of polishing device for hub bearing steel ball processing, including installation shell 1 and assembly in installation shell 1 and coaxial arrangement outer polishing disc 2, inner polishing disc 3, feeding seat 41, discharge disc 42, outer polishing disc 2 is rotationally installed to installation shell 1, inner polishing disc 3 is arranged in the inside of outer polishing disc 2 and is along vertical axis lifting motion, feeding seat 41 and discharge disc 42 are fixed combination by connecting shaft 43 and are arranged in the upper and lower sides of inner polishing disc 3 respectively, connecting shaft 43 is arranged through the axis of inner polishing disc 3, feeding seat 41, discharge disc 42 are assembled to installation shell 1 in the way of relative rotation, the bottom of outer polishing disc 2 and the upper surface of discharge disc 42 keep close.

[0034] The inner edge of outer polishing disc 2 is sequentially provided with polishing camber surface 21, straight cylinder surface 22 and tapered cylinder surface 23 from top to bottom, the tapered cylinder surface 23 is arranged in a narrow upper and wide lower manner, the outer edge of inner polishing disc 3 is provided with polishing grooves 31 arranged in an annular array, and the top of inner polishing disc 3 is provided with feeding grooves 32 arranged obliquely downward and communicated with the polishing grooves 31.

[0035] The axis of feeding seat 41 is provided with feeding shaft hole 411, and the sidewall of feeding seat 41 is provided with feeding inclined hole 412 for communicating the feeding shaft hole 411 with the feeding grooves 32.

[0036] The installation of installation shell 1 can ensure the stable assembly and operation of outer polishing disc 2, inner polishing disc 3, feeding seat 41 and discharge disc 42, and realize the feeding, polishing and discharging of steel balls for hub bearings.

[0037] When inner polishing disc 3 is in the middle of the forming position, the polishing grooves 31 can be opposite to the straight cylinder surface 22 of outer polishing disc 31, and the straight cylinder surface 22 can effectively limit the steel balls in the polishing grooves 31 from falling from the outer edge, and in the process of gradually rotating the feeding seat 41, the feeding inclined hole 412 can be connected with the inner side end of each feeding groove 32 one by one, so as to convey the steel balls to each polishing groove 31 through the feeding shaft hole 411, the feeding inclined hole 412 and the feeding groove 32.

[0038] Then control inner polishing disc 3 and the steel balls loaded therein to move upward, and make the polishing grooves 31 cover each steel ball with polishing camber surface 21, at this time, control outer polishing disc 2 to operate, the polishing camber surface 21 and the inner side surface of polishing groove 31 are coated with sand surface for polishing operation, and the cooperation of the two can realize uniform polishing of the surface of steel ball.

[0039] The air blowing device is installed at the bottom of the installation shell 1, and the air vent is opened on the discharge disc 42. After the air blowing device works and pressurized external clean and dry air is injected above the discharge disc 42 by means of the dust screen, the air is further transmitted upward along the gap between the outer polishing disc 2 and the inner polishing disc 3, the steel balls are cooled, and the polishing debris is transmitted to the top of the installation shell 1. The air outlet is opened at the top of the installation shell 1 to collect and process the hot air and the debris blown together.

[0040] After the polishing operation is completed, the inner polishing disc 3 is controlled to descend to the low position of the stroke, and the polished steel balls are located between the polishing groove 31 and the tapered cylinder surface 23. Since the diameter of the tapered cylinder surface 23 gradually increases, the steel balls finally fall into the corresponding discharge groove 421 during the descending process of the inner polishing disc 3, and are finally discharged from the installation shell 1.

[0041] In order to ensure that the components involved can be stably assembled in the installation shell 1 and stably operate according to the set requirements, the following technical solutions are provided.

[0042] The installation shell 1 includes a shell body 11, a top cover 12 and a bottom plate 13 fixedly assembled to the upper and lower ends of the shell body 11, a partition disc 14 fixedly connected to the inner side of the shell body 11, a discharge disc 42 rotatably installed above the partition disc 14, a rotating ring seat 24 fixedly connected to the outer side of the outer polishing disc 2, the rotating ring seat 24 being rotatably installed between the top cover 12 and the shell body 11, and the top end of the feeding seat 41 being rotatably installed at the shaft center of the top cover 12.

[0043] The installation shell 1 is provided in a multi-section structure of the top cover 12, the shell body 11 and the bottom plate 13, which facilitates the installation and arrangement of the internal structure and the maintenance of the device as a whole. The cooperation of the partition disc 14 and the top cover 12 can ensure that the overall structure of the feeding seat 41 and the discharge disc 42 is stably installed in the installation shell 1 in a relative rotating posture.

[0044] In order to ensure that the outer polishing disc 2 can stably rotate in the installation shell 1, the following technical solutions are provided.

[0045] The driving motor A51 is further fixedly installed on the top cover 12, a driving bevel gear A511 is fixedly connected to the output shaft of the driving motor A51, a connecting sleeve 25 is fixedly connected to the top of the outer polishing disc 2, the feeding seat 41 is arranged inside the connecting sleeve 25, a sealing ring seat 15 is fixedly connected to the bottom of the top cover 12 and sealingly abuts against the connecting sleeve 25, and a transmission bevel gear A26 is fixedly connected to the outer wall of the connecting sleeve 25 and abuts against the driving bevel gear A511.

[0046] The cooperation of the connecting sleeve 25 and the sealing ring seat 15 can ensure the stable rotation of the outer polishing disc 2, and can bind the heat dissipation air and the carried debris inside the connecting sleeve 25, and finally discharge through the opening of the top cover 12, so as to avoid the debris from entering the driving bevel gear A511, the transmission bevel gear A26 and the driving motor A51 to affect the stable operation. When the driving motor A51 works, the combination of the driving bevel gear A511 and the transmission bevel gear A26 can drive the connecting sleeve 25 and the outer polishing disc 2 to stably rotate.

[0047] In order to ensure that the lifting movement of the inner polishing disc 3 can cooperate with the feeding seat 41 and the discharging disc 42 to realize the stable lifting of the inner polishing disc 3 within a certain stroke range, the following technical solutions are provided.

[0048] The top of the inner polishing disc 3 is provided with a containing groove A33, the bottom of the feeding seat 41 is nested with the containing groove A33, and the bottom of the discharging disc 42 is provided with a containing groove B422, and the bottom of the inner polishing disc 3 is nested with the containing groove B422.

[0049] The arrangement of the containing groove A33 and the containing groove B422 can realize the cooperation of the inner polishing disc 3 with the feeding seat 41 and the discharging disc 42, and further ensure the stable feeding and discharging operation of the steel balls.

[0050] In order to ensure that the feeding seat 41 and the discharging disc 42 can realize stable rotation and realize the stable feeding and discharging of the steel balls, the following technical solutions are provided.

[0051] Further comprising a driving motor B52 fixedly installed on the bottom plate 13, a driving bevel gear B521 is fixedly connected to the output shaft of the driving motor B52, the bottom of the discharging disc 42 is coaxially fixedly connected with a transmission bevel gear B423 arranged below the partition disc 14, the transmission bevel gear B423 is in engagement with the driving bevel gear B521, the top cover 12 is provided with a feeding connector 16 in butt joint with the feeding shaft hole 411, and the shell body 11 is fixedly connected with a discharging connector 17 in butt joint with the discharging groove 421.

[0052] The steel balls to be polished are loaded into the feeding seat 41 through the feeding connector 16, and then conveyed to the polishing groove 31 at the outer edge of the inner polishing disc 3 through the feeding shaft hole 411, the feeding inclined hole 412 and the feeding groove 32. The steel balls polished and falling into the discharging groove 421 can be discharged one by one through the discharging connector 17 during the rotation of the discharging disc 42.

[0053] When the driving motor B52 operates, the combination of the driving bevel gear B521 and the transmission bevel gear B423 can drive the discharging disc 42, the connecting shaft 43 and the feeding seat 41 to stably rotate.

[0054] In order to ensure that the inner polishing disc 3 can be stably lifted along the vertical direction within a specific stroke range, the following technical solutions are provided.

[0055] Further comprising a hydraulic telescopic cylinder 53 fixedly installed on the top cover 12 and arranged along the vertical direction, and the movable end of the hydraulic telescopic cylinder 53 is fixedly connected with the inner polishing disc 3.

[0056] When the hydraulic telescopic cylinder 53 is in telescopic motion, the inner polishing disc 3 can be stably lifted, thereby realizing the posture adjustment of the inner polishing disc 3 at the feeding, polishing and discharging stations.

[0057] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0058] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A polishing device for processing a hub bearing steel ball, characterized by: The polishing machine comprises a mounting shell (1), an outer polishing disc (2), an inner polishing disc (3), a feeding seat (41) and a discharging disc (42) which are coaxially arranged in the mounting shell (1). The outer polishing disc (2) is rotatably arranged in the mounting shell (1), and the inner polishing disc (3) is arranged on the inner side of the outer polishing disc (2) and is vertically movable along an axis. The feeding seat (41) and the discharging disc (42) are fixedly combined by a connecting shaft (43) and are arranged on the upper and lower sides of the inner polishing disc (3) respectively. The connecting shaft (43) is arranged through the axis of the inner polishing disc (3). The feeding seat (41) and the discharging disc (42) are rotatably arranged in the mounting shell (1). The bottom of the outer polishing disc (2) is in close contact with the upper surface of the discharging disc (42). The inner edge of the outer polishing disc (2) is sequentially provided with a polishing curved surface (21), a straight cylinder surface (22) and a tapered cylinder surface (23) from top to bottom. The tapered cylinder surface (23) is arranged in a narrow-to-wide manner. The outer edge of the inner polishing disc (3) is provided with polishing grooves (31) which are arranged in an annular array. The top of the inner polishing disc (3) is provided with a feeding groove (32) which is arranged in a downward inclined manner and is in communication with the polishing grooves (31). The feeding seat (41) is provided with a feeding shaft hole (411) at the axis thereof. A feeding inclined hole (412) is formed in the sidewall of the feeding seat (41) and is in communication with the feeding shaft hole (411) and the feeding groove (32). The top outer edge of the discharging disc (42) is provided with a plurality of discharging grooves (421) which are arranged in an annular array.

2. The polishing apparatus for machining a hub bearing steel ball according to claim 1, characterized in that: The mounting shell (1) comprises a shell body (11), a top cover (12) and a bottom plate (13) which are fixedly arranged at the upper and lower ends of the shell body (11). A partition disc (14) is fixedly connected to the inner side of the shell body (11). The discharging disc (42) is rotatably arranged above the partition disc (14). A rotating ring seat (24) is fixedly connected to the outer side of the outer polishing disc (2). The rotating ring seat (24) is rotatably arranged between the top cover (12) and the shell body (11). The top end of the feeding seat (41) is rotatably arranged at the axis of the top cover (12).

3. A polishing device for machining hub bearing steel balls according to claim 2, characterized in that: A driving motor A (51) is fixedly arranged on the top cover (12). A driving bevel gear A (511) is fixedly connected to the output shaft of the driving motor A (51). A connecting sleeve (25) is fixedly connected to the top of the outer polishing disc (2). The feeding seat (41) is arranged in the inner side of the connecting sleeve (25). The bottom of the top cover (12) is fixedly connected to a sealing ring seat (15) which is in sealing contact with the connecting sleeve (25). A transmission bevel gear A (26) is fixedly connected to the outer wall of the connecting sleeve (25) and is in meshing connection with the driving bevel gear A (511).

4. The polishing apparatus for machining a hub bearing steel ball according to claim 1, characterized in that: The top of the inner polishing disc (3) is provided with a receiving groove A (33). The bottom of the feeding seat (41) is in nesting contact with the receiving groove A (33). The bottom of the discharging disc (42) is provided with a receiving groove B (422). The bottom of the inner polishing disc (3) is in nesting contact with the receiving groove B (422).

5. The polishing apparatus for machining a hub bearing steel ball according to claim 2, characterized in that: Also included are a driving motor B (52) fixedly installed to the bottom plate (13), a driving bevel gear B (521) fixed to an output shaft of the driving motor B (52), a transmission bevel gear B (423) coaxially fixed to the bottom of the discharge disc (42) and arranged below the partition disc (14), the transmission bevel gear B (423) being in engagement with the driving bevel gear B (521), a feeding connector (16) assembled to the top cover (12) and in butt joint with the feeding shaft hole (411), and a discharge connector (17) fixed to the shell body (11) and in butt joint with the discharge groove (421).

6. The polishing apparatus for machining a hub bearing steel ball according to claim 2, characterized in that: Also included are a hydraulic telescopic cylinder (53) fixedly installed to the top cover (12) and arranged in a vertical direction, and a movable end of the hydraulic telescopic cylinder (53) being fixedly connected with the inner polishing disc (3).

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