Bearing roller superfinishing machine

Abstract

The utility model discloses a bearing roller superfinishing machine, and particularly relates to the technical field of bearing roller processing, which comprises a rotary table for driving a bearing roller to rotate, limiting teeth which are arranged in a sliding manner along the vertical direction, and an abrasive belt which is arranged on the limiting teeth and is used for polishing the bearing roller; the movable wheel is used for limiting the abrasive belt and is provided with a movable spray head; and when the abrasive belt is in contact with the bearing roller, the movable spray head deflects and always points to the abrasive belt. According to the bearing roller superfinishing machine, self-adaptive adjustment can be conducted through the two limiting teeth according to bearing rollers of different specifications, the abrasive belt is driven to be tightly attached to the side face of the bearing roller, the movable spray head is driven to deflect along with the abrasive belt, grinding fluid is sprayed to the abrasive belt, and the contact position of the abrasive belt and the bearing roller is cooled; spraying on non-contact parts can be reduced, and the efficiency of cooling and liquid supplementing is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing roller processing technology, and more specifically to a bearing roller ultra-precision machine. Background Technology

[0002] A bearing roller ultraprecision machine is a high-precision device used to manufacture and process bearing rollers. It is commonly used in the bearing industry to ensure that the dimensions, shape, and surface quality of the rollers meet stringent standards.

[0003] Based on publication number CN116038502A, published on May 2, 2023, a method and machine for ultra-precision machining of the outer cylindrical surface of an arc-shaped bearing roller is disclosed. The method uses an abrasive belt as the ultra-precision machining tool. The bearing roller is supported by a roller rotation support device and rotates around its centerline. The abrasive belt is supported by a pressure head, ensuring its ultra-precision working surface contacts the outer cylindrical surface of the bearing roller. The pressure head reciprocates, with its rotation surface parallel to the roller generatrix. The rotation axis is located on one side of the center of the roller generatrix in contact with the abrasive belt. The abrasive belt is formed by two abrasive belt winding cylinders. The winding cylinders are mounted and supported by a winding shaft, allowing the belt path to move along the tangential direction of the roller profile, thus achieving the repositioning of the abrasive belt's ultra-precision working surface.

[0004] However, in the prior art, including the aforementioned patent, the pressure head presses the abrasive belt against the side of the bearing roller. Under long-term grinding contact, the abrasive belt will generate local high temperature, which changes the tension of the abrasive belt, causing the abrasive belt to not completely adhere to the bearing roller. Utility Model Content

[0005] The purpose of this invention is to provide a bearing roller superprecision machine to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bearing roller ultra-precision machine, including a turntable for driving the bearing roller to rotate, including a limiting tooth that slides in the vertical direction, and an abrasive belt for grinding the bearing roller is provided thereon;

[0007] The movable wheel used to limit the sanding belt is equipped with a movable nozzle;

[0008] When the sanding belt is in contact with the bearing roller, the movable nozzle deflects and always points towards the sanding belt.

[0009] Preferably, it also includes a pressure roller rotatably mounted on a movable wheel, which is provided with an elastic element for tensioning the sanding belt.

[0010] Preferably, it also includes rotating tubes disposed on both sides of the pressure roller and connected to the movable nozzle.

[0011] Preferably, the movable nozzle further includes a folding portion, and the folding portion has a retracted state that minimizes the arc length of the movable nozzle on the side closest to the movable wheel.

[0012] Preferably, the device also includes a rotatable cover plate with a station for sealing the movable nozzle during its travel.

[0013] Preferably, the limiting tooth is slidably provided with a one-way locking member that engages with the movable nozzle in one direction, and a pull rope is provided between the one-way locking member and the cover plate.

[0014] In the above technical solution, the bearing roller ultra-precision machine provided by this utility model has the following beneficial effects: the two limiting teeth can adaptively adjust according to the bearing rollers of different specifications, and drive the sanding belt to be in close contact with the side of the bearing roller, drive the movable nozzle to follow the deflection of the sanding belt, and spray the grinding fluid onto the sanding belt to cool the contact part between the sanding belt and the bearing roller, which can reduce the spraying on the non-contact parts and improve the efficiency of cooling and replenishing fluid. Attached Figure Description

[0015] 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.

[0016] Figure 1 A three-dimensional schematic diagram of the overall embodiment of this utility model;

[0017] Figure 2 A schematic diagram of the limiting teeth and abrasive belt structure provided in an embodiment of this utility model;

[0018] Figure 3 A schematic diagram of the limiting teeth, movable wheel, and sanding belt provided for an embodiment of this utility model;

[0019] Figure 4 Provided for the embodiments of this utility model Figure 3 Enlarged diagram of A in the middle;

[0020] Figure 5 A schematic diagram of the movable wheel and pressure roller structure provided in an embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the movable nozzle and one-way clamp structure provided in an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Turntable; 2. Slide rail; 3. Slide seat; 4. Limiting teeth; 5. Sanding belt; 6. Guide roller; 7. Movable wheel; 8. Pressure roller; 81. Rotating tube; 82. Elastic element; 83. Movable nozzle; 84. Folding part; 9. One-way clamp; 91. Cover plate; 92. Pull rope. Detailed Implementation

[0024] 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.

[0025] like Figure 1-6 As shown, a bearing roller ultra-precision machine includes a turntable 1 for driving the bearing roller to rotate, and a limiting tooth 4 that is slidably arranged in the vertical direction, on which a sanding belt 5 for grinding the bearing roller is provided.

[0026] The movable wheel 7 used to limit the sand belt 5 is provided with a movable nozzle 83;

[0027] When the sanding belt 5 is in contact with the bearing roller, the movable nozzle 83 deflects and always points towards the sanding belt 5.

[0028] Specifically, it also includes a slide block 3 and a slide rail 2 for the slide block 3 to move vertically. The limiting teeth 4 are slidably disposed on the slide block 3. The limiting teeth 4 are provided with guide rollers 6. The gap between the guide rollers 6 and the movable wheel 7 is used to clamp the sanding belt 5. It also includes a liquid supply device for supplying grinding fluid to the movable nozzle 83. The electronic components involved above are all technical common knowledge known to those skilled in the art, and will not be described in detail here.

[0029] Furthermore, the bearing roller is placed on the turntable 1, and the slide 3 is operated to move the limiting teeth 4 downward. An inclined surface is provided on the adjacent surface of the two limiting teeth 4. This inclined surface moves downward with the limiting teeth 4 and abuts against the side of the bearing roller. During this process, the two limiting teeth 4 are moved away from each other by the reverse force of the bearing roller, allowing for adaptive adjustment according to different specifications of bearing rollers. As the limiting teeth 4 move away from each other, the abrasive belt 5 is tensioned, making it tightly adhere to the side of the bearing roller, and the movable nozzle 83 follows the deflection of the abrasive belt 5. Subsequently, the turntable 1 is driven to rotate the bearing roller, and the abrasive belt 5 grinds the side of the bearing roller. Simultaneously, the movable nozzle 83 sprays grinding fluid onto the abrasive belt 5. The grinding fluid is sprayed onto the abrasive belt 5, cooling the contact area between the abrasive belt 5 and the bearing roller. Because the movable nozzle 83 follows the deflection of the abrasive belt 5, it reduces spraying onto non-contact areas, improving the efficiency of cooling and fluid replenishment.

[0030] The aforementioned method for driving the movable nozzle 83 to deflect can be achieved by setting an image capture unit to read the angle of the sanding belt 5 and then sending a signal to the drive motor, which in turn drives the movable nozzle 83 to rotate; or by fixing a protrusion on the sanding belt 5 and setting a sliding groove on the movable nozzle 83 that slides with the protrusion, so that when the sanding belt 5 drives the protrusion to deflect, the movable nozzle 83 deflects synchronously through the sliding groove; or by any other linkage method known to those skilled in the art.

[0031] In the above technology, the two limiting teeth 4 can adaptively adjust according to the bearing rollers of different specifications, and drive the abrasive belt 5 to closely adhere to the side of the bearing roller, driving the movable nozzle 83 to follow the deflection of the abrasive belt 5, and the grinding fluid is sprayed onto the abrasive belt 5 to cool the contact area between the abrasive belt 5 and the bearing roller, which can reduce the spraying on the non-contact area and improve the efficiency of cooling and fluid replenishment.

[0032] As a further embodiment of this utility model, it also includes a pressure roller 8 rotatably disposed on the movable wheel 7, on which an elastic element 82 for tensioning the sand belt 5 is disposed.

[0033] Specifically, such as Figure 3 As shown, the sanding belt 5 is wound from the underside of the guide roller 6 to the upper side of the movable wheel 7, and then from the upper side of the movable wheel 7 to the lower side of the pressure roller 8, so that the sanding belt 5 is pressed down by the two pressure rollers 8 on both sides to the side of the bearing roller. The pressure roller 8 is provided with an elastic element 82, so that the pressure roller 8 is kept at a predetermined angle. When the bearing roller contacts the sanding belt 5, the bearing roller drives the sanding belt 5, so that the sanding belt 5 lifts the pressure roller 8. The elastic element 82 presses the sanding belt 5 with its own elastic force, so that the sanding belt 5 is tightly attached to the side of the bearing roller.

[0034] As another embodiment of this utility model, it also includes a rotating tube 81 disposed on both sides of the pressure roller 8 and connected to the movable nozzle 83.

[0035] Specifically, when the bearing roller contacts the sanding belt 5, the pressure roller 8 is driven to rise and drive the rotating tubes 81 fixed on both sides to deflect. When the rotating tubes 81 deflect, they drive the movable nozzle 83 to deflect. The greater the pressure of the sanding belt 5 by the bearing roller, the greater the angle at which the pressure roller 8 rises, so that the rotating tubes 81 deflect with the pressure roller 8, thereby ensuring that the movable nozzle 83 always points to the sanding belt 5. No other driving source is required, which is relatively simple.

[0036] As another embodiment of the present invention, the movable nozzle 83 further includes a folding portion 84, and the folding portion 84 has a retracted state that minimizes the arc length of the movable nozzle 83 on the side closest to the movable wheel 7.

[0037] Specifically, when the hydraulic pressure of the grinding fluid is low, the grinding fluid will be sprayed out along the arc trajectory of the movable nozzle 83 in the contracted state. When the hydraulic pressure of the grinding fluid increases, the grinding fluid will cause the folding part 84 to unfold as it flows inside the movable nozzle 83. The arc length of the movable nozzle 83 on the side near the movable wheel 7 gradually increases, causing the movable nozzle 83 to deflect. When the hydraulic pressure decreases, the folding part 84 contracts under the action of deformation elasticity, causing the movable nozzle 83 to deflect again. Combined with the hydraulic pressure fluctuation of the grinding fluid, the movable nozzle 83 swings back and forth during the spraying process, spreading the spray range while always facing the abrasive belt 5.

[0038] As a further embodiment of this utility model, it also includes a rotatably configured cover plate 91, which has a station for blocking the movable nozzle 83 during its movement.

[0039] Specifically, in the default state, the pressure roller 8 is not lifted by the abrasive belt 5, and the movable nozzle 83 is blocked by the cover plate 91. A torsion spring can be installed on the cover plate 91 to press the cover plate 91 against the nozzle of the movable nozzle 83, preventing grinding fluid from dripping and protecting the movable nozzle 83. When the rotating tube 81 rotates, it drives the movable nozzle 83 to rotate, and the movable nozzle 83 pushes the cover plate 91 to deflect. At this time, the cover plate 91 will not block the movable nozzle 83, and the torsion spring stores its force. Alternatively, a slider can be installed on the movable nozzle 83, and an arc-shaped groove is opened on the cover plate 91 to slide with the slider. When the rotating tube 81 rotates, it drives the movable nozzle 83 to rotate, and the movable nozzle 83 drives the slider to push against the arc-shaped groove, so that the cover plate 91 is disengaged from the nozzle of the movable nozzle 83. When the pressure roller 8 is not lifted, the rotating tube 81 returns to its initial state, drives the movable nozzle 83 to rotate, and the slider pushes against the arc-shaped groove, causing the cover plate 91 to block the movable nozzle 83.

[0040] As another embodiment provided by this utility model, a one-way locking member 9 is slidably provided on the limiting tooth 4 to engage with the movable nozzle 83 in one direction, and a pull rope 92 is provided between the one-way locking member 9 and the cover plate 91.

[0041] Specifically, the one-way card 9 includes a deformable bevel, such as Figure 4 In the indicated state, when the movable nozzle 83 deflects towards the bearing roller, the folded portion 84 on the movable nozzle 83 will not engage with the one-way locking piece 9. The movable nozzle 83 pushes against the cover plate 91, causing the cover plate 91 to flip and avoid the movable nozzle 83. When the movable nozzle 83 moves away from the bearing roller, the folded portion 84 will rotate and push against the one-way locking piece 9. The one-way locking piece 9 pulls the pull rope 92, causing the cover plate 91 to flip and block the movable nozzle 83.

[0042] 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 roller superprecision machine, comprising a turntable (1) for driving the bearing rollers to rotate, characterized in that, It includes a limiting tooth (4) that slides vertically, and a sanding belt (5) for grinding bearing rollers is provided on it; The movable wheel (7) used to limit the sand belt (5) is provided with a movable nozzle (83); When the sanding belt (5) is in contact with the bearing roller, the movable nozzle (83) deflects and always points towards the sanding belt (5).

2. The bearing roller superprecision machine according to claim 1, characterized in that, It also includes a pressure roller (8) rotatably mounted on a movable wheel (7), on which an elastic element (82) for tensioning the sand belt (5) is provided.

3. The bearing roller superprecision machine according to claim 2, characterized in that, It also includes a rotating tube (81) disposed on both sides of the pressure roller (8) and connected to the movable nozzle (83).

4. The bearing roller superprecision machine according to claim 1, characterized in that, The movable nozzle (83) also includes a folding portion (84), and the folding portion (84) has a contracted state that minimizes the arc length of the movable nozzle (83) on the side closest to the movable wheel (7).

5. A bearing roller superprecision machine according to claim 1, characterized in that, It also includes a rotating cover plate (91) with a station for sealing the movable nozzle (83) during its travel.

6. A bearing roller superprecision machine according to claim 5, characterized in that, The limiting tooth (4) is slidably provided with a one-way locking member (9) that engages with the movable nozzle (83) in one direction, and a pull rope (92) is provided between the one-way locking member (9) and the cover plate (91).

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