Tool clamp for bearing machining

Abstract

The utility model relates to the technical field of bearing machining, in particular to a tool clamp for bearing machining. The device comprises a base, a clamping table is fixedly connected to the top of the base, a fixed clamp is fixedly connected to the top of the clamping table, a sliding clamp is movably connected to the top of the clamping table, fixed sliding blocks are fixedly connected to the two sides of the sliding clamp, and a plurality of limiting plates are fixedly connected to the top of the clamping table; a sliding hole is formed in the surface of the limiting plate, an air cylinder is fixedly connected to the side, away from the fixed clamp, of the sliding clamp, a second rubber pad is arranged on the side, close to the fixed clamp, of the sliding clamp, and a sliding block is fixedly connected to the bottom of the sliding clamp. According to the utility model, the air cylinder is matched with the fixed clamp and the sliding clamp to clamp bearings with different sizes, and then the bearings are fixed by utilizing the paws, so that the problems that the existing tool clamp cannot adapt to the bearings with different sizes and the clamping of the bearings is unstable are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, and more specifically, to a fixture for bearing processing. Background Technique

[0002] A bearing race is an annular part of a radial rolling bearing with one or several raceways. During the bearing processing, it is necessary to clamp the bearing race to perform fine machining on the internal balls and rollers. Fixture tools are required for clamping the bearing race.

[0003] In the prior art, for example, Chinese Patent Publication No. CN204748320U discloses a fixture tool for processing thin-walled bearing races. This fixture tool is arranged on the electromagnetic chuck of a surface grinding machine and consists of three arc-shaped soft jaws with the same outer wall radian as the thin-walled bearing race to be processed. Positioning steel balls are arranged on the inner side surfaces of the three arc-shaped soft jaws, and the upper surfaces of the three positioning steel balls are located on the same horizontal plane. When the three arc-shaped soft jaws hold the outer wall of the thin-walled bearing race to be processed, the bottom end of the thin-walled bearing race to be processed is on the plane formed by the three positioning steel balls, and this plane is parallel to the surface of the electromagnetic chuck. In this way, during grinding, the thin-walled bearing race is only subjected to the pressing force of the outer diameter of the arc-shaped soft jaws, and the influence of the electromagnetic force on the end face of the race is very weak and almost in a free state, and it is ensured that the end faces of the thin-walled bearing races are on the same plane, thus ensuring that elastic deformation will not occur after end face grinding, and ultimately ensuring the flatness technical requirements.

[0004] However, the existing fixture tools for bearing processing have a relatively single structure, so they cannot adapt to bearings of different sizes and have certain limitations. Moreover, the existing fixture tools have unstable clamping of bearings and do not have a good clamping effect. In view of this, we propose a fixture for bearing processing. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fixture for bearing processing to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides a fixture for bearing processing, which includes a base. A clamping table is fixedly connected to the top of the base. A fixed fixture is fixedly connected to the top of the clamping table. A sliding fixture is movably connected to the top of the clamping table. Fixed sliders are fixedly connected to both sides of the sliding fixture. A plurality of limiting plates are fixedly connected to the top of the clamping table. Sliding holes are formed on the surfaces of the limiting plates. A cylinder is fixedly connected to the side of the sliding fixture away from the fixed fixture. A second rubber pad is arranged on the side of the sliding fixture close to the fixed fixture. A slider is fixedly connected to the bottom of the sliding fixture. The shapes of the sides of the sliding fixture and the fixed fixture close to each other are both "V" shaped. The limiting plates are in fit with both sides of the sliding fixture.

[0007] As a further improvement of the technical solution, a fixing plate is fixedly connected to the side of the fixed fixture away from the sliding fixture. A first rubber pad is arranged on the side of the fixed fixture away from the fixing plate.

[0008] As a further improvement of the technical solution, a hydraulic cylinder is arranged on the top of the base. A gripper base is fixedly connected to the top of the hydraulic cylinder. A plurality of grippers are fixedly connected to the top of the gripper base. A locking assembly is arranged on the top of the gripper base. The grippers pass through the inner cavity of the locking assembly. The locking assembly is movably connected to the grippers. The shape of the grippers is "7" shaped.

[0009] As a further improvement of the technical solution, a sliding groove is formed on the top of the clamping table. An annular groove is formed on the bottom of the clamping table. A rectangular hole is formed on the surface of the annular groove. The inner cavity of the sliding groove is exactly in fit with the surface of the slider.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] For the fixture for bearing processing, place the bearing between the fixed fixture and the sliding fixture. Push the sliding fixture through the cylinder to clamp the bearing. To make it more stable, move the grippers upward so that they are higher than the height of the bearing, and the surface of the protruding part of the grippers is in fit with the bearing. Then, cooperate with the locking assembly through the hydraulic cylinder to move the locking assembly downward, and the distance between the two grippers becomes larger to lock the bearing. During this process, the first rubber pad and the second rubber pad can prevent the bearing from sliding during clamping and can also protect the surface of the bearing to prevent damage to its smooth surface and affect the subsequent use of the bearing. Through the clamping of this device, the problems that the existing fixtures cannot adapt to bearings of different sizes and the clamping of the bearings is unstable are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2Schematic diagram of the sliding fixture structure of the present utility model;

[0014] Figure 3 Schematic diagram of the jaw assembly structure of the present utility model;

[0015] Figure 4 Schematic diagram of the cross-sectional structure of the clamping table of the present utility model;

[0016] Figure 5 For the present utility model Figure 1 Schematic diagram of the structure at position A.

[0017] The meanings of each label in the figure are as follows:

[0018] 1. Base; 11. Clamping table; 12. Rectangular hole; 13. Annular groove; 14. Sliding groove; 2. Fixed plate; 21. Fixed fixture; 22. First rubber pad; 3. Sliding fixture; 31. Cylinder; 32. Limiting plate; 33. Second rubber pad; 34. Sliding hole; 35. Fixed slider; 36. Slider; 4. Hydraulic cylinder; 41. Jaw base; 42. Locking assembly; 43. Jaw. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0021] In addition, in the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0022] Please refer to Figure 1 and Figure 2As shown in the figure, the utility model provides a fixture for bearing processing, which includes a base 1. A clamping table 11 is fixedly connected to the top of the base 1. A fixed fixture 21 is fixedly connected to the top of the clamping table 11. A sliding fixture 3 is movably connected to the top of the clamping table 11. Fixed sliders 35 are fixedly connected to both sides of the sliding fixture 3. A number of limiting plates 32 are fixedly connected to the top of the clamping table 11. A sliding hole 34 is formed on the surface of the limiting plate 32. A cylinder 31 is fixedly connected to the side of the sliding fixture 3 away from the fixed fixture 21. A second rubber pad 33 is arranged on the side of the sliding fixture 3 close to the fixed fixture 21. A slider 36 is fixedly connected to the bottom of the sliding fixture 3. The shapes of the sides of the sliding fixture 3 and the fixed fixture 21 close to each other are both "V" shaped. The limiting plate 32 is in fit with both sides of the sliding fixture 3. The "V" shape enables the sliding fixture 3 and the fixed fixture 21 to clamp bearings of different sizes, avoiding the problem of replacing the clamping components matching different sizes of bearings, and making the clamping force of the bearing more uniform, thereby improving the stability of bearing clamping.

[0023] Please refer to Figure 2 As shown in the figure, in this embodiment, the sliding fixture 3 slides left and right through the slider 36 at the bottom. In order to make it more stable during clamping, two limiting plates 32 that are in fit with its side surface are arranged on both sides of the sliding fixture 3. The existence of the limiting plate 32 fixes the sliding path of the sliding fixture 3, so that it will not deviate during the clamping process and makes the clamped bearing more stable. The cylinder 31 provides the force required during the clamping process.

[0024] Please refer to Figure 3 As shown in the figure, further, a hydraulic cylinder 4 is arranged on the top of the base 1. A claw base 41 is fixedly connected to the top of the hydraulic cylinder 4. A claw 43 is fixedly connected to the top of the claw base 41. A locking assembly 42 is arranged on the top of the claw base 41. The claw 43 passes through the inner cavity of the locking assembly 42. The locking assembly 42 is movably connected to the claw 43. The shape of the claw 43 is "7" shaped. Two claws 43 are placed together to form a "T" shape. After the bearing is fixed, the claw 43 is moved upward so that the protruding part is higher than the bearing, and the surface of the protruding part of the claw 43 just fits with the bearing. Then, through the cooperation of the hydraulic cylinder 4 and the locking assembly 42, the locking assembly 42 is moved downward, and the distance between the two claws 43 becomes larger to lock the bearing, making the clamping of the bearing more stable.

[0025] Please refer to Figure 2 and Figure 5 As shown in the figure, specifically, a fixing plate 2 is fixedly connected to the side of the fixed fixture 21 away from the sliding fixture 3. A first rubber pad 22 is arranged on the side of the fixed fixture 21 away from the fixing plate 2. The first rubber pad 22 and the second rubber pad 33 can prevent the bearing from sliding during the clamping process and can also protect the surface of the bearing.

[0026] Please refer to Figure 4 As shown, in addition, a sliding groove 14 is formed at the top of the clamping table 11, and an annular groove 13 is formed at the bottom of the clamping table 11. A rectangular hole 12 is formed on the surface of the annular groove 13. The inner cavity of the sliding groove 14 just fits the surface of the slider 36. The sliding groove 14 is in an inverted "T" shape. The design of being narrow at the top and wide at the bottom firmly clamps the slider 36 in the sliding groove 14, so that the slider 36 will not fall off during the sliding process. The size of the rectangular hole 12 is the same as the combined size of the two claws 43, which facilitates the up and down movement of the claws 43. And it is not made too large because when facing a smaller bearing, it can avoid the situation that the bearing falls off from the rectangular hole 12. The size of the annular groove 13 is the same as that of the locking assembly 42, which facilitates the up and down movement of the locking assembly 42.

[0027] In summary, the working principle of this solution is as follows:

[0028] First, place the bearing between the fixed fixture 21 and the sliding fixture 3. Then, push the sliding fixture 3 through the cylinder 31. Since the shapes of the sides of the sliding fixture 3 and the fixed fixture 21 close to each other are both "V" - shaped, this design enables it to clamp bearings of different sizes. The first rubber pad 22 and the second rubber pad 33 can prevent the bearing from sliding during the clamping process and can also protect the surface of the bearing. To make it more stable, move the claw 43 upward through the claw base 41 so that the protruding part is higher than the bearing, and the bottom surface of the protruding part of the claw 43 just fits the top of the bearing. Then, through the hydraulic cylinder 4 and the cooperation of the locking assembly 42, move the locking assembly 42 downward, and the distance between the two claws 43 becomes larger to lock the bearing. On the contrary, to take it out, the locking assembly 42 can be moved upward, the distance between the two claws 43 becomes smaller until they fit, and then the claw 43 is moved downward.

[0029] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above - mentioned embodiments. The above - mentioned embodiments and the descriptions in the specification are only preferred examples of the present utility model and do not limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for bearing processing, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a clamping platform (11), the top of the clamping platform (11) is fixedly connected to a fixed clamp (21), the top of the clamping platform (11) is movably connected to a sliding clamp (3), both sides of the sliding clamp (3) are fixedly connected to fixed sliders (35), the top of the clamping platform (11) is fixedly connected to a plurality of limit plates (32), the surface of the limit plates (32) is provided with sliding holes (34), the side of the sliding clamp (3) away from the fixed clamp (21) is fixedly connected to a cylinder (31), the side of the sliding clamp (3) close to the fixed clamp (21) is provided with a second rubber pad (33), and the bottom of the sliding clamp (3) is fixedly connected to a slider (36), wherein: The shape of the side of the sliding clamp (3) close to the fixed clamp (21) is a "V" shape, and the limiting plate (32) is in contact with the two sides of the sliding clamp (3).

2. The fixture for bearing processing according to claim 1, characterized in that: The side of the fixing clamp (21) away from the sliding clamp (3) is fixedly connected to the fixing plate (2), and the side of the fixing clamp (21) away from the fixing plate (2) is provided with a first rubber pad (22).

3. The fixture for bearing processing according to claim 1, characterized in that: A hydraulic cylinder (4) is arranged on the top of the base (1), a gripper base (41) is fixedly connected to the top of the hydraulic cylinder (4), a plurality of grippers (43) are fixedly connected to the top of the gripper base (41), and a locking assembly (42) is arranged on the top of the gripper base (41), wherein: The hand claw (43) passes through the inner cavity of the locking assembly (42), the locking assembly (42) and the hand claw (43) are movably connected, and the shape of the hand claw (43) is a "7" shape.

4. The fixture for bearing processing according to claim 1, characterized in that: The top of the clamping platform (11) is provided with a sliding groove (14), the bottom of the clamping platform (11) is provided with an annular groove (13), and the surface of the annular groove (13) is provided with a rectangular hole (12), wherein: The inner cavity of the sliding groove (14) fits exactly with the surface of the sliding block (36).

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