Bearing steel ball superfinishing and grinding device

Abstract

This utility model discloses an ultra-precision grinding device for bearing steel balls, relating to the field of bearing steel ball processing technology. It includes a base, with movable plates slidably mounted on both the upper and lower surfaces of the base. Circular holes are formed on the upper surfaces of the two movable plates, and rotating blocks are rotatably connected inside each of the two circular holes. A first annular groove is formed on one side of each of the two rotating blocks, and an annular grinding plate is fixedly connected inside each of the first annular grooves. This utility model, through the two annular grinding plates, can simultaneously perform rough grinding and fine grinding processes. The upper grinding plate performs preliminary deburring and machining allowance processing on one batch of bearing steel balls, while the lower grinding plate performs fine polishing on another batch of steel balls. This achieves simultaneous operation at two workstations, avoiding the problem of frequent sand plate changes required in traditional single-workstation systems, significantly shortening the processing cycle and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bearing steel ball processing technology, specifically to a bearing steel ball ultra-precision grinding processing device. Background Technology

[0002] In the field of modern machinery manufacturing, bearings are key components whose performance directly affects the operational stability and service life of mechanical equipment. Bearing steel balls, as the core component of bearings, have crucial machining accuracy and surface quality.

[0003] Among them, a grinding device for processing precision bearing steel balls, with announcement number CN216566425U, includes a machine body and a mounting plate. The top of the machine body is fixedly connected to the bottom of the mounting plate. The inner cavity of the mounting plate is provided with a storage groove, and the top of the mounting plate is provided with a movable hole. An adjusting rod is movably connected to the inner cavity of the movable hole.

[0004] However, in order to make the surface of existing bearing steel balls smoother during processing, it is usually necessary to first use a low-grit sandpaper and then use a high-grit sandpaper. Therefore, the sandpaper needs to be changed during the sanding process, which affects the sanding efficiency. Summary of the Invention

[0005] In view of the problems existing in the grinding device for machining precision bearing steel balls, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide an ultra-precision grinding device for bearing steel balls, which solves the problem that in the existing processing of bearing steel balls, in order to make the surface smoother, it is usually necessary to first use a low-grit abrasive plate and then use a high-grit abrasive plate. Therefore, the abrasive plate needs to be changed during the grinding process, which affects the grinding efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A bearing steel ball ultra-precision grinding processing device includes a base. Movable plates are slidably mounted on both the upper and lower surfaces of the base. Circular holes are formed on the upper surfaces of the two movable plates. Rotating blocks are rotatably connected inside the two circular holes. A first annular groove is formed on one side of each of the two rotating blocks. An annular grinding plate is fixedly connected inside each of the first annular grooves. Second annular grooves are formed on both the upper and lower surfaces of the base. Multiple bearing steel balls are placed between the two second annular grooves and their corresponding first annular grooves. A cavity is formed at one end of the base. A driving mechanism is installed inside the cavity. The two annular grinding plates rotate via the driving mechanism. An adjustment mechanism is provided on one side of the base, and the two movable plates rotate via the adjustment mechanism.

[0009] Preferably, the drive mechanism includes a motor, a first bevel gear, two rotating rods, two second bevel gears, two spur gears, and two external gear rings. The motor is fixedly connected to one side of the base, and the output end of the motor passes through one side of the base and extends into the cavity. Circular holes are provided on both the upper and lower surfaces of the cavity. The two rotating rods are rotatably connected to the interior of the corresponding circular holes. The two second bevel gears are partially fixedly sleeved on one end of the corresponding rotating rod and mesh with the first bevel gear. The two spur gears are fixedly sleeved on the rod wall of the corresponding rotating rod away from the corresponding second bevel gear. The two external gear rings are fixedly sleeved on the outer surface of the corresponding rotating block and mesh with the corresponding spur gear.

[0010] Preferably, the adjustment mechanism includes a bidirectional cylinder, which is fixedly connected to one side of the base, and the output ends of the bidirectional cylinder are respectively fixedly connected to one side of the corresponding moving plate.

[0011] Preferably, limit rods are fixedly connected to both the upper and lower surfaces of the base.

[0012] Preferably, one end of each of the two limiting rods passes through one side of the corresponding rotating block and is fixedly connected to a fixing block.

[0013] Preferably, the two annular grinding plates have different specifications.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model uses two annular grinding plates to simultaneously perform rough grinding and fine grinding processes. The upper grinding plate performs preliminary deburring and machining allowance processing on a batch of bearing steel balls, while the lower grinding plate performs fine polishing on another batch of steel balls. This achieves synchronous operation of two workstations, avoiding the problem of frequent sand plate replacement required by traditional single workstations, greatly shortening the processing cycle and improving production efficiency.

[0016] 2. In this utility model, the drive mechanism, through the transmission of a motor, bevel gear, spur gear and external gear ring, enables the upper and lower annular grinding plates to rotate synchronously, causing the steel ball to roll and be squeezed in the annular groove, so that the entire surface of the steel ball contacts the grinding plate for grinding. This design ensures that all parts of the steel ball surface are evenly stressed, effectively removes processing marks, improves surface smoothness and precision, and meets the requirements of ultra-precision grinding. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 For the present utility model Figure 1 A sectional view.

[0020] Figure 3 For the present utility model Figure 1 A top view of the rotating block.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base, 2. Moving plate, 3. Rotating block, 4. Annular grinding plate, 5. Bearing steel ball, 6. Motor, 7. First bevel gear, 8. Rotating rod, 9. Second bevel gear, 10. Spur gear, 11. External gear ring, 12. Two-way cylinder, 13. Limiting rod, 14. Fixing block. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses an ultra-precision grinding apparatus for bearing steel balls.

[0025] This utility model provides, for example Figure 1-3 The ultra-precision grinding device for bearing steel balls shown includes a base 1. Movable plates 2 are slidably mounted on both the upper and lower surfaces of the base 1. Circular holes are formed on the upper surfaces of both movable plates 2. Rotating blocks 3 are rotatably connected inside the two circular holes. A first annular groove is formed on one side of each of the two rotating blocks 3. An annular grinding plate 4 is fixedly connected inside each of the first annular grooves. Second annular grooves are formed on both the upper and lower surfaces of the base 1. Multiple bearing steel balls 5 are placed between the two second annular grooves and their corresponding first annular grooves. A cavity is formed at one end of the base 1, and a driving mechanism is installed inside the cavity. Both annular grinding plates 4 rotate via the driving mechanism. An adjustment mechanism is provided on one side of the base 1, and both movable plates 2 rotate via the adjustment mechanism. The two annular grinding plates 4 have different specifications.

[0026] The upper annular grinding plate 4 has a low grit, while the lower annular grinding plate 4 has a high grit. First, the bearing steel ball is placed inside the second annular groove above the base 1. Then, the bearing steel ball can be initially ground by rotating the annular grinding plate 4. After that, the bearing steel ball is taken out and placed inside the second annular groove below the base 1 for fine grinding. At this time, the upper second annular groove can be put into the next batch of bearing steel balls to be processed. This synchronous operation can greatly improve efficiency.

[0027] In order for the two rotating blocks 3 to rotate, as follows Figure 1-2As shown, the drive mechanism includes a motor 6, a first bevel gear 7, two rotating rods 8, two second bevel gears 9, two spur gears 10, and two external gear rings 11. The motor 6 is fixedly connected to one side of the base 1. The output end of the motor 6 passes through one side of the base 1 and extends into the cavity. Circular holes are provided on both the upper and lower surfaces of the cavity. The two rotating rods 8 are rotatably connected to the interior of the corresponding circular holes. The two second bevel gears 9 are partially fixedly sleeved on one end of the corresponding rotating rod 8 and mesh with the first bevel gear 7. The two spur gears 10 are fixedly sleeved on the rod wall of the corresponding rotating rod 8 away from the corresponding second bevel gear 9. The two external gear rings 11 are fixedly sleeved on the outer surface of the corresponding rotating block 3 and mesh with the corresponding spur gear 10.

[0028] After the motor 6 starts, the first bevel gear 7 at the output end drives the two second bevel gears 9 to rotate, which in turn drives the rotating rod 8 to rotate. The spur gear 10 at the other end of the rotating rod 8 meshes with the external gear ring 11, so that both the upper and lower rotating blocks 3 can rotate. The annular grinding plate 4 generates friction with the surface of the steel ball 5, forcing the steel ball to roll in the annular groove. At the same time, it is squeezed by the upper and lower grinding plates to achieve full surface contact grinding. The upper annular grinding plate 4 removes burrs and machining allowances from the surface of the steel ball, while the lower annular grinding plate further polishes it to mirror finish.

[0029] In order for the two movable plates to move, such as Figure 1-2 As shown, the adjustment mechanism includes a bidirectional cylinder 12, which is fixedly connected to one side of the base 1, and the output ends of the bidirectional cylinder 12 are respectively fixedly connected to one side of the corresponding moving plate 2.

[0030] The bidirectional cylinder 12 drives the upper and lower moving plates 2 to move closer to the base 1 in a synchronous manner, so that the steel ball is clamped between the first and second annular grooves above, ensuring that the steel ball is stable and can roll during grinding, while allowing the spur gear 10 to mesh with the corresponding external gear ring 11.

[0031] In order to serve as a limit, such as Figure 1-2 As shown, limit rods 13 are fixedly connected to both the upper and lower surfaces of the base 1. One end of each limit rod 13 passes through one side of the corresponding rotating block 3 and is fixedly connected to a fixing block 14.

[0032] The limiting rod 13 cooperates with the fixing block 14 to restrict the movement trajectory of the moving plate 2 and ensure the coaxiality of the upper and lower grinding plates 4.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bearing steel ball ultra-precision grinding processing device, comprising a base (1), characterized in that, The upper and lower surfaces of the base (1) are slidably provided with movable plates (2). The upper surfaces of the two movable plates (2) are provided with circular holes. The interiors of the two circular holes are rotatably connected with rotating blocks (3). The sides of the two rotating blocks (3) are provided with first annular grooves. The interiors of each first annular groove are fixedly connected with an annular grinding plate (4). The upper and lower surfaces of the base (1) are provided with second annular grooves. The two second annular grooves and the corresponding first annular grooves are together provided with multiple bearing steel balls (5). One end of the base (1) is provided with a cavity. The interior of the cavity is provided with a driving mechanism. The two annular grinding plates (4) are rotated by the driving mechanism. The side of the base (1) is provided with an adjustment mechanism. The two movable plates (2) are rotated by the adjustment mechanism.

2. The bearing steel ball ultra-precision grinding apparatus according to claim 1, characterized in that, The drive mechanism includes a motor (6), a first bevel gear (7), two rotating rods (8), two second bevel gears (9), two spur gears (10), and two external gear rings (11). The motor (6) is fixedly connected to one side of the base (1). The output end of the motor (6) passes through one side of the base (1) and extends into the cavity. Circular holes are provided on the upper and lower surfaces of the cavity. The two rotating rods (8) are rotatably connected to the inside of the corresponding circular holes. The two second bevel gears (9) are partially fixedly sleeved on one end of the corresponding rotating rod (8) and mesh with the first bevel gear (7). The two spur gears (10) are fixedly sleeved on the rod wall of the corresponding rotating rod (8) away from the corresponding second bevel gear (9). The two external gear rings (11) are fixedly sleeved on the outer surface of the corresponding rotating block (3) and mesh with the corresponding spur gear (10).

3. The bearing steel ball ultra-precision grinding apparatus according to claim 1, characterized in that, The adjustment mechanism includes a bidirectional cylinder (12), which is fixedly connected to one side of the base (1), and the output end of the bidirectional cylinder (12) is fixedly connected to one side of the corresponding moving plate (2).

4. The bearing steel ball ultra-precision grinding apparatus according to claim 1, characterized in that, Limiting rods (13) are fixedly connected to both the upper and lower surfaces of the base (1).

5. The bearing steel ball ultra-precision grinding apparatus according to claim 4, characterized in that, One end of each of the two limiting rods (13) passes through one side of the corresponding rotating block (3) and is fixedly connected to a fixing block (14).

6. The bearing steel ball ultra-precision grinding apparatus according to claim 1, characterized in that, The two annular grinding plates (4) have different specifications.

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