High-stability ultra-precision grinding device for bearing outer ring channel

Abstract

The utility model relates to a high-stability bearing outer ring channel ultra-precision grinding device which comprises a fixing table, a rotating table is rotationally arranged on the fixing table, a three-jaw chuck is fixedly arranged on the rotating table, a fixing frame is fixedly arranged above the fixing table, an electric telescopic rod is arranged in the fixing frame in a sliding mode, and the three-jaw chuck is fixedly arranged on the rotating table. A grinding motor is fixedly arranged at the bottom end of the electric telescopic rod, a grinding wheel is fixedly arranged on an output shaft of the grinding motor, a liquid storage box is fixedly arranged at the bottom of the fixed table, a liquid guide pump is fixedly arranged in the liquid storage box, and a liquid spraying head is fixedly arranged on one side of the bottom of the electric telescopic rod and connected with the liquid guide pump through a guide pipe. The bearing outer ring can be conveniently positioned and fixed in the rotating table, the stability of the bearing outer ring in the grinding chamber is guaranteed, then the grinding wheel is moved into the bearing to grind the bearing outer ring channel, meanwhile, water can be sprayed to the grinding position of the bearing inner channel, the grinding wheel and the bearing are prevented from being damaged by high temperature, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to a highly stable ultra-precision grinding device for a bearing outer ring groove, belonging to the technical field of transportation. Background Art

[0002] Bearings are components that fix and reduce the load friction coefficient during mechanical transmission, and require relatively high precision in size and mechanical properties. Bearings are generally composed of an inner ring, an outer ring, a cage, rolling elements and sealing rings. Bearings are widely used in the mechanical field due to their simple structure and ease of use.

[0003] The utility model with patent number 202022635402.2 provides a groove grinder for processing precision bearings, which opens the second cylinder to push the first slider to the left to move, so that the bearing is fixed on the rotating shaft, thereby improving the stability of bearing fixation, improving the bearing grinding accuracy, and improving the processing quality of the bearing. By turning on the first motor to drive the second group of drive shafts to rotate, the grinding mechanism grinds the inside of the bearing groove, thereby improving the bearing grinding efficiency. By starting multiple groups of first cylinders, the output ends of multiple groups of first cylinders push the bearings to the right to slide off the rotating shaft, so that the device can self-unload, improve the convenience of the device for taking and placing bearings, and improve practicality; however, when the existing grinding device fixes the bearing, it is not convenient to position the bearing, which leads to deviations during subsequent grinding and inaccurate grinding. In addition, high temperatures are prone to occur during grinding, which damages the grinding wheel and the bearing, affecting the use of the bearing. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a highly stable ultra-precision grinding device for the outer ring groove of a bearing to overcome the above-mentioned technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A highly stable ultra-precision grinding device for the outer ring groove of a bearing comprises a fixed table, a rotating table is rotatably provided on the fixed table, a three-jaw chuck is fixedly provided on the rotating table, a fixed frame is fixedly provided above the fixed table, an electric telescopic rod is slidably provided in the fixed frame, a grinding motor is fixedly provided at the bottom end of the electric telescopic rod, a grinding wheel is fixedly provided on the output shaft of the grinding motor, a liquid storage tank is fixedly provided at the bottom of the fixed table, a liquid conduction pump is fixedly provided in the liquid storage tank, a liquid spray head is fixedly provided at one side of the bottom of the electric telescopic rod, and the liquid spray head is connected to the liquid conduction pump through a conduit.

[0007] Preferably, a rotating groove is provided in the middle of the fixed platform, a rotating shaft is fixedly provided in the middle of the bottom of the rotating platform, and a through hole is provided in the middle of the rotating platform.

[0008] Preferably, a stepper motor is fixedly mounted on the bottom of the fixed platform, and a gear ring is fixedly mounted on the output shaft and the rotating shaft of the stepper motor, and the gear ring is directly meshed and connected.

[0009] Preferably, a placement groove is provided on the rotating table, and the center of the placement groove is the same as the center of the through hole, and the clamping claws of the three-jaw chuck are located in the placement groove.

[0010] Preferably, the middle of the top plate of the fixed frame is located directly above the rotating platform, and an infrared positioning sensor is fixedly provided at the bottom end of the electric telescopic rod.

[0011] Preferably, a screw is rotatably provided in the inner cavity of the top plate of the fixed frame, one end of the screw is fixedly connected to a servo motor, and a moving block is slidably sleeved on the screw.

[0012] Preferably, a fixing rod is transversely fixed in the fixing frame, the fixing rod passes through the bottom of the moving block, and the electric telescopic rod is fixedly arranged on the moving block.

[0013] Preferably, the liquid spray head is located on one side of the grinding wheel, a filter screen is fixedly provided in the middle of the inner cavity of the liquid storage tank, and the bottom of the through hole is connected to the liquid storage tank through a liquid return pipe.

[0014] The clamping plate and the fixed plate are connected via a second hydraulic telescopic rod, and anti-collision rubber pads are fixedly provided on the top of the moving vehicle body and the inner surface of the clamping plate.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting up a rotating table, when in use, the outer ring of the bearing is directly placed on the rotating table, and then the bearing is fixed on the rotating table by a three-jaw chuck, so as to ensure the stability of the bearing during grinding and facilitate the positioning of the bearing. At the same time, the rotating table can be slowly rotated by a stepper motor, so that the groove in the bearing is fully in contact with the grinding wheel, thereby achieving comprehensive grinding of the bearing groove;

[0017] 2. By setting up a fixed frame, after the bearing is fixed, the grinding wheel is moved downward by the electric telescopic rod to enter the center of the bearing, and then the electric telescopic rod is moved to one side to contact the groove inside the bearing, so as to realize the grinding operation of the bearing groove;

[0018] 3. By setting up a liquid storage tank, while grinding the internal groove of the bearing, the coolant can be transported to the spray head through the liquid guide pump, and then sprayed to the grinding part of the internal groove of the bearing, so as to ensure that the temperature will not be too high during grinding, avoid high temperature damage to the grinding wheel and bearing, and improve its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of a highly stable ultra-precision grinding device for the outer raceway of a bearing of the utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of a rotating table of a highly stable bearing outer ring groove ultra-precision grinding device of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of an electric telescopic rod of a highly stable bearing outer ring groove ultra-precision grinding device of the utility model;

[0023] Figure 4 It is a schematic cross-sectional view of a liquid storage tank of a highly stable bearing outer ring groove ultra-precision grinding device of the utility model;

[0024] Numbers in the figure: 1. Fixed table; 2. Rotating table; 3. Three-jaw chuck; 4. Fixed frame; 5. Electric telescopic rod; 6. Grinding motor; 7. Grinding wheel; 8. Liquid storage tank; 9. Liquid guide pump; 10. Spray head; 11. Rotating groove; 12. Rotating shaft; 13. Through hole; 14. Stepping motor; 15. Gear ring; 16. Placement groove; 17. Screw rod; 18. Moving block; 19. Fixed rod; 20. Filter. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a highly stable ultra-precision grinding device for a bearing outer ring groove is provided.

[0027] Embodiment 1

[0028] like Figure 1-4As shown, according to an embodiment of the utility model, a highly stable ultra-precision grinding device for the outer ring groove of a bearing comprises a fixed table 1, on which a rotating table 2 is rotatably provided, on which a three-jaw chuck 3 is fixedly provided, above which a fixed frame 4 is fixedly provided, in which an electric telescopic rod 5 is slidably provided, at the bottom end of which a grinding motor 6 is fixedly provided, and a grinding wheel 7 is fixedly provided on the output shaft of the grinding motor 6, at the bottom of the fixed table 1 a liquid storage tank 8 is fixedly provided, in which a liquid guide pump 9 is fixedly provided, at one side of the bottom of the electric telescopic rod 5 a liquid spray head 10 is fixedly provided, and the liquid spray head 10 is connected to the liquid guide pump 9 through a conduit, a rotating groove 11 is provided in the middle of the fixed table 1, a rotating shaft 12 is fixedly provided in the middle of the bottom of the rotating table 2, and a through hole 13 is provided in the middle of the rotating table 2. A stepper motor 14 is fixedly installed at the bottom of the fixed table 1. A gear ring 15 is fixedly provided on the output shaft of the stepper motor 14 and the rotating shaft 12, and the gear ring 15 is directly meshed and connected. During grinding, the stepper motor 14 can be turned on to drive the rotating shaft 12 to rotate through the gear ring 15, and the rotating shaft 12 can ensure stability during rotation in the rotating groove 11, and the rotating table 2 will rotate slowly accordingly, so that the bearing rotates to achieve the purpose of comprehensive grinding of the groove. A placement groove 16 is provided on the rotating table 2, and the center of the placement groove 16 is the same as the center of the through hole 13. The clamping claw of the three-jaw chuck 3 is located in the placement groove 16, which is convenient for placing the bearing directly in the placement groove 16, and the bearing is fixed by the three-jaw chuck 3 to ensure that the center of the bearing is the same as the center of the through hole 13, thereby achieving the purpose of positioning and fixing the bearing.

[0029] Embodiment 2

[0030] like Figure 1-4As shown, according to an embodiment of the utility model, a highly stable ultra-precision grinding device for the outer ring groove of a bearing comprises a fixed table 1, on which a rotating table 2 is rotatably provided, on which a three-jaw chuck 3 is fixedly provided, above the fixed table 1, a fixed frame 4 is fixedly provided, in which an electric telescopic rod 5 is slidably provided, a grinding motor 6 is fixedly provided at the bottom end of the electric telescopic rod 5, and a grinding wheel 7 is fixedly provided on the output shaft of the grinding motor 6, a liquid storage tank 8 is fixedly provided at the bottom of the fixed table 1, and a liquid guide pump 9 is fixedly provided in the liquid storage tank 8, a liquid spray head 10 is fixedly provided at one side of the bottom of the electric telescopic rod 5, and the liquid spray head 10 is connected to the liquid guide pump 9 through a conduit, and the middle of the top plate of the fixed frame 4 is located at the rotating table 2. Directly above, an infrared positioning sensor is fixed at the bottom end of the electric telescopic rod 5, which can accurately determine the position of the grinding wheel 7 to avoid collision with the bearing when moving. A screw rod 17 is rotatably provided in the inner cavity of the top plate of the fixed frame 4, and one end of the screw rod 17 is fixedly connected to the servo motor. A moving block 18 is slidably sleeved on the screw rod 17. A fixed rod 19 is transversely fixed in the fixed frame 4, and the fixed rod 19 passes through the bottom of the moving block 18. The electric telescopic rod 5 is fixedly set on the moving block 18. When the grinding wheel 7 enters the bearing, the screw rod 17 is driven to rotate by the servo motor, so that the moving block 18 moves to one side, so that the grinding wheel 7 can contact the channel inside the bearing to achieve the purpose of grinding.

[0031] Embodiment 3

[0032] like Figure 1-4 As shown, according to an embodiment of the utility model, a highly stable ultra-precision grinding device for the outer ring groove of a bearing comprises a fixed table 1, on which a rotating table 2 is rotatably provided, on which a three-jaw chuck 3 is fixedly provided, a fixed frame 4 is fixedly provided above the fixed table 1, an electric telescopic rod 5 is slidably provided in the fixed frame 4, a grinding motor 6 is fixedly provided at the bottom end of the electric telescopic rod 5, and a grinding wheel 7 is fixedly provided on the output shaft of the grinding motor 6, a liquid storage tank 8 is fixedly provided at the bottom of the fixed table 1, and a liquid guide pump 9 is fixedly provided in the liquid storage tank 8, a liquid spray head 10 is fixedly provided at one side of the bottom of the electric telescopic rod 5, and the liquid spray head 10 is connected to the liquid guide pump 9 through a conduit, and the liquid spray head 10 is located on one side of the grinding wheel 7, a filter screen 20 is fixedly provided in the middle of the inner cavity of the liquid storage tank 8, and the bottom of the through hole 13 is connected to the liquid storage tank 8 through a liquid return pipe. When grinding, the coolant is sprayed to the grinding place, and the coolant will also flow downward along the through hole 13 and enter the liquid storage tank 8 again, so that the coolant can be recycled.

[0033] In summary, with the help of the above-mentioned technical solution of the utility model, when the device is in use, the outer ring of the bearing is directly placed in the rotating table 2, and then the bearing is fixed in the rotating table 2 by the three-jaw chuck 3, so as to ensure the stability of the bearing during grinding, and it is also convenient to position and fix the bearing, and the grinding wheel 7 is moved downward by the electric telescopic rod 5 to enter the center of the outer ring of the bearing, and the electric telescopic rod 5 is moved to one side by the screw rod 17 to contact the groove inside the bearing, so as to realize the grinding operation of the bearing groove, and then the rotating table 2 can be slowly rotated by the stepping motor 14, so that the groove in the bearing is fully contacted with the grinding wheel 7, so as to realize the comprehensive grinding of the bearing groove, and at the same time, the coolant is transported to the spray head 10 by the liquid guide pump 9, so as to spray to the grinding part of the internal groove of the bearing, so as to ensure that the temperature will not be too high during grinding, avoid high temperature to damage the grinding wheel 7 and the bearing, and improve its practicality.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly stable ultra-precision grinding device for a bearing outer ring groove, comprising a fixed table (1), characterized in that: A rotating table (2) is rotatably provided on the fixed table (1), a three-jaw chuck (3) is fixedly provided on the rotating table (2), a fixed frame (4) is fixedly provided above the fixed table (1), an electric telescopic rod (5) is slidably provided in the fixed frame (4), a grinding motor (6) is fixedly provided at the bottom end of the electric telescopic rod (5), a grinding wheel (7) is fixedly provided on the output shaft of the grinding motor (6), a liquid storage tank (8) is fixedly provided at the bottom of the fixed table (1), a liquid guide pump (9) is fixedly provided in the liquid storage tank (8), a liquid spray head (10) is fixedly provided on one side of the bottom of the electric telescopic rod (5), and the liquid spray head (10) is connected to the liquid guide pump (9) through a conduit.

2. A highly stable bearing outer ring groove ultra-precision grinding device according to claim 1, characterized in that: A rotating groove (11) is provided in the middle of the fixed platform (1), a rotating shaft (12) is fixedly provided in the middle of the bottom of the rotating platform (2), and a through hole (13) is provided in the middle of the rotating platform (2).

3. A highly stable bearing outer ring groove ultra-precision grinding device according to claim 2, characterized in that: A stepper motor (14) is fixedly mounted on the bottom of the fixed platform (1), and a gear ring (15) is fixedly mounted on the output shaft of the stepper motor (14) and the rotating shaft (12), and the gear ring (15) is directly meshed and connected.

4. A highly stable bearing outer ring groove ultra-precision grinding device according to claim 3, characterized in that: The rotating table (2) is provided with a placement groove (16), and the center of the placement groove (16) is the same as the center of the through hole (13), and the clamping claws of the three-jaw chuck (3) are located in the placement groove (16).

5. A highly stable bearing outer ring groove ultra-precision grinding device according to claim 4, characterized in that: The middle of the top plate of the fixing frame (4) is located directly above the rotating platform (2), and an infrared positioning sensor is fixedly provided at the bottom end of the electric telescopic rod (5).

6. A highly stable bearing outer ring groove ultra-precision grinding device according to claim 5, characterized in that: A screw rod (17) is rotatably provided in the inner cavity of the top plate of the fixed frame (4), one end of the screw rod (17) is fixedly connected to a servo motor, and a moving block (18) is slidably sleeved on the screw rod (17).

7. A highly stable bearing outer ring groove ultra-precision grinding device according to claim 6, characterized in that: A fixing rod (19) is transversely fixed inside the fixing frame (4), and the fixing rod (19) passes through the bottom of the moving block (18). The electric telescopic rod (5) is fixedly arranged on the moving block (18).

8. The highly stable bearing outer ring groove ultra-precision grinding device according to claim 7, characterized in that: The liquid spray head (10) is located on one side of the grinding wheel (7), a filter screen (20) is fixedly provided in the middle of the inner cavity of the liquid storage tank (8), and the bottom of the through hole (13) is connected to the liquid storage tank (8) through a liquid return pipe.

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