Bearing ring grinding clamp

Abstract

The invention relates to the field of bearing ring machining, and particularly discloses a bearing ring grinding clamp which comprises a base, a grinding wheel and a guide wheel are rotationally arranged on the upper side of the base, a bearing ring is placed between the grinding wheel and the guide wheel, a supporting assembly used for supporting the bearing ring is arranged between the grinding wheel and the guide wheel, and two vertical plates are fixedly arranged on the upper end face of the base. The supporting assembly is slidably connected between the two vertical plates. The guide wheel rotates to drive the bearing ring to rotate, the rotating direction of the grinding wheel is opposite to that of the bearing ring, so that the periphery of the bearing ring is ground, the bearing ring is supported by the two supporting rollers, the supporting rollers rotate along with the bearing ring at the same time, friction between the bearing ring and the supporting assembly is reduced, and abrasion of the supporting assembly is reduced. And meanwhile, the clamping assembly can keep the bearing ring in a vertical state, and the grinding effect of the bearing ring is ensured.

Description

Technical Field

[0001] The invention relates to the field of bearing ring processing, in particular to a bearing ring grinding fixture. Background Art

[0002] During the processing of bearing rings, it is often necessary to grind their surfaces. Centerless grinding is widely used in the grinding of cylindrical or annular workpieces due to its high grinding efficiency. Since the bearing rings are annular, the center of gravity is located at the center of the circle, and the contact area between the bearing rings and the guide wheel and the grinding wheel is small, the bearing rings may fall during rotation, affecting normal grinding operations. The support plate in centerless grinding is used to support the workpiece. Since the support plate is stationary and the bearing rotates relative to the support plate, the support plate may wear due to the friction of the bearing over a long period of time, resulting in an uneven surface of the support plate, thereby affecting the support for the bearing. Summary of the invention

[0003] The object of the present invention is to provide a bearing ring grinding fixture to overcome the above-mentioned defects in the prior art.

[0004] A bearing ring grinding fixture according to the present invention comprises a base, a grinding wheel and a guide wheel are rotatably arranged on the upper side of the base, the bearing ring is placed between the grinding wheel and the guide wheel, a support assembly for supporting the bearing ring is arranged between the grinding wheel and the guide wheel, two vertical plates are fixedly arranged on the upper end surface of the base, and the support assembly is slidably connected between the two vertical plates; The support assembly includes a lifting seat and a plurality of clamping structures fixed to the upper end surface of the lifting seat, the clamping structure is used to maintain the vertical state of the bearing ring, the upper end surface of the lifting seat is fixed with support plates located at both ends thereof, the support plates are in an "M" shape, two support rollers are arranged between the two support plates, and the ends of the support rollers are rotatably connected to the two upper ends of the support plates.

[0005] Through the above technical solution, the rotation of the guide wheel drives the bearing ring to rotate, and the grinding wheel rotates in the opposite direction to the bearing ring, so as to grind the outer periphery of the bearing ring. The two support rollers support the bearing ring, and the support rollers rotate simultaneously with the bearing ring, thereby reducing the friction between the bearing ring and the support assembly and reducing the wear of the support assembly. At the same time, the clamping assembly can keep the bearing ring in a vertical state to ensure the grinding effect of the bearing ring.

[0006] Preferably, the clamping structure includes a base plate, two symmetrically arranged vertical plates are fixed to the upper end surface of the base plate, and guide seats are fixed to the side surfaces of the two vertical plates that are away from each other, and a cavity is opened on the vertical plate that runs through the thickness and is recessed into the guide seat, and a guide block is slidably connected in the cavity, and two friction plates are arranged between the two guide blocks, and the friction plates are fixed on the guide block, and two threaded rods that run through the cavity are rotatably connected to the guide seat, and the threaded rods are threadedly connected in the guide block.

[0007] Through the above technical solution, the distance between the two friction plates can be adjusted by rotating the threaded rod, so that it can be used to clamp bearing rings of different thicknesses. The friction plates can also be used to grind the end faces of both sides of the bearing rings.

[0008] Preferably, screw rods are fixed at both ends of the lifting seat, and the vertical plate is provided with a groove that runs through its thickness. The upper end of the groove is open, and the two screw rods can slide along the two grooves respectively. The screw rods are threadedly connected with a fastening nut that can abut against the side of the vertical plate away from the lifting seat.

[0009] Through the above technical solution, the screw rod can slide in the groove as the lifting seat moves up and down. After adjusting the height of the lifting seat, the height of the lifting seat can be fixed by tightening the fastening nut, so that the support roller can be used to support bearing rings of different diameters.

[0010] Preferably, two guide plates are provided on the upper side of the base at both ends of the grinding wheel, a column is fixed between the guide plate and the base, a guide groove is opened on the guide plate and passes through the thickness thereof, the rotating shafts of the grinding wheel and the guide wheel pass through the two guide grooves, two sliders are slidably connected in the guide grooves, baffles and clamps are fixed on the sliders, the baffles and clamps clamp the guide plates, and the two ends of the rotating shafts of the grinding wheel and the guide wheel respectively pass through the sliders and baffles on the corresponding sides and are rotatably connected to the two.

[0011] Through the above technical solution, the slider slides along the guide groove, and the grinding wheel and the guide wheel move accordingly, so that the grinding wheel or the guide wheel can be adjusted to abut against the outer periphery of bearings of different diameters.

[0012] Preferably, a clamping block is fixedly provided on one side of the slider away from the grinding wheel or the guide wheel, a through groove penetrating along the thickness of the clamping plate is opened, the clamping plate is embedded in the through groove, and the clamping plate is fixed to the slider by bolts.

[0013] Through the above technical solution, the clamping plate can be detachably fixed on the slider, so that after adjusting the position of the grinding wheel or the guide wheel, the clamping plate and the baffle plate can be clamped to clamp the guide plate by tightening the bolts, thereby fixing the position of the slider.

[0014] Preferably, two motors are provided on one side of one of the guide plates away from the grinding wheel, a fixing plate is provided between the motor and the clamp, four threaded sleeves located at the four corners of the clamp are fixed on one side of the clamp close to the fixing plate, the fixing plate is fixed to the four threaded sleeves by bolts, and the motor is fixed to the fixing plate.

[0015] Through the above technical solution, the two motors can respectively drive the rotation direction and rotation speed of the grinding wheel and the guide wheel.

[0016] Preferably, the parts of the upper end surface of the lifting seat located on both sides of the clamping structure are arranged to be inclined surfaces inclined downward.

[0017] Through the above technical solution, the debris dropped on the upper end surface of the lifting seat can quickly slide along the inclined surface onto the base, thereby accelerating the chip cleaning speed.

[0018] The beneficial effects of the present invention are as follows: the rotation of the guide wheel drives the bearing ring to rotate, the rotation direction of the grinding wheel is opposite to that of the bearing ring, thereby grinding the outer periphery of the bearing ring, and the two support rollers support the bearing ring. The support rollers rotate simultaneously with the bearing ring, thereby reducing the friction between the bearing ring and the support assembly and reducing the wear of the support assembly. At the same time, the clamping assembly can keep the bearing ring in a vertical state to ensure the grinding effect of the bearing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is an exploded view of the present invention; Figure 3 The present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 It is a structural schematic diagram of the support assembly in the present invention; Figure 5 It is a structural schematic diagram of the clamping structure in the present invention; Figure 6 is an exploded view of the clamping structure of the present invention; Figure 7 It is a cross-sectional schematic diagram of the clamping structure in the present invention.

[0020] In the figure: 10. Base; 11. Vertical plate; 20. Vertical column; 21. Guide plate; 211. Guide groove; 30. Grinding wheel; 40. Guide wheel; 50. Baffle plate; 51. Slider; 52. Block; 53. Clamp plate; 531. Through groove; 54. Threaded sleeve; 55. Fixed plate; 56. Motor; 60. Lifting seat; 61. Fastening nut; 62. Screw rod; 63. Support plate; 64. Support roller; 70. Bottom plate; 71. Vertical plate; 711. Cavity; 72. Guide seat; 73. Threaded rod; 74. Friction plate; 75. Guide block. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors. The specific features of the bearing ring grinding fixture are described in detail below: An embodiment of the present invention: Reference Figure 1-Figure 7 The present invention provides a bearing ring grinding fixture, comprising a base 10, a grinding wheel 30 and a guide wheel 40 are rotatably arranged on the upper side of the base 10, the bearing ring is placed between the grinding wheel 30 and the guide wheel 40, a support assembly for supporting the bearing ring is arranged between the grinding wheel 30 and the guide wheel 40, two vertical plates 11 are fixedly arranged on the upper end surface of the base 10, and the support assembly is slidably connected between the two vertical plates 11; The support assembly includes a lifting seat 60 and a plurality of clamping structures fixed to the upper end surface of the lifting seat 60. The clamping structure is used to maintain the vertical state of the bearing ring. The upper end surface of the lifting seat 60 is fixed with support plates 63 located at both ends thereof. The support plates 63 are in an "M" shape. Two support rollers 64 are arranged between the two support plates 63. The ends of the support rollers 64 are rotatably connected to the two upper ends of the support plates 63.

[0023] Reference Figure 5-Figure 7The clamping structure includes a bottom plate 70, and two symmetrically arranged vertical plates 71 are fixed on the upper end surface of the bottom plate 70. A guide seat 72 is fixed on the side of the two vertical plates 71 away from each other. A cavity 711 is opened on the vertical plate 71, which runs through the thickness thereof and is recessed into the guide seat 72. A guide block 75 is slidably connected in the cavity 711. Two friction plates 74 are arranged between the two guide blocks 75. The friction plate 74 is fixed on the guide block 75. Two threaded rods 73 running through the cavity 711 are rotatably connected to the guide seat 72. The threaded rods 73 are threadedly connected in the guide block 75.

[0024] Reference Figure 4 Preferably, screw rods 62 are fixed at both ends of the lifting seat 60, and a groove is opened on the vertical plate 11 that runs through its thickness. The upper end of the groove is opened, and the two screw rods 62 can slide along the two grooves respectively. The screw rods 62 are threadedly connected with a fastening nut 61 that can abut against the side of the vertical plate 11 away from the lifting seat 60.

[0025] Reference Figure 2 , Figure 3 Two guide plates 21 are arranged on the upper side of the base 10, which are located at both ends of the grinding wheel 30. A column 20 is fixed between the guide plate 21 and the base 10. A guide groove 211 is provided on the guide plate 21, which penetrates along the thickness thereof. The rotation axes of the grinding wheel 30 and the guide wheel 40 penetrate the two guide grooves 211. Two sliders 51 are slidably connected in the guide grooves 211. A baffle plate 50 and a clamping plate 53 are fixed on the slider 51. The baffle plate 50 and the clamping plate 53 clamp the guide plate 21. The two ends of the rotation axes of the grinding wheel 30 and the guide wheel 40 penetrate the slider 51 and the baffle plate 50 on the corresponding sides respectively and are rotatably connected with the two. A clamping block 52 is fixedly provided on one side of the block 51 away from the grinding wheel 30 or the guide wheel 40, a through groove 531 is opened on the clamping plate 53 which runs through the thickness thereof, the clamping plate 53 is embedded in the through groove 531, the clamping plate 53 is fixed to the slider 51 by bolts, two motors 56 are provided on the side of one of the guide plates 21 away from the grinding wheel 30, a fixing plate 55 is provided between the motor 56 and the clamping plate 53, four threaded sleeves 54 located at the four corners of the clamping plate 53 are fixedly provided on one side of the clamping plate 53 close to the fixing plate 55, the fixing plate 55 is fixed to the four threaded sleeves 54 by bolts, and the motor 56 is fixed to the fixing plate 55.

[0026] Reference Figure 4 The upper end surface of the lifting seat 60 located on both sides of the clamping structure is configured as a downwardly inclined slope.

[0027] When the present invention is in use, the bearing ring is placed between the two friction plates 74, and the threaded rod 73 is rotated so that the two friction plates 74 abut against the end faces of the bearing ring, and the outer periphery of the bearing ring abuts against the outer peripheries of the two support rollers 64. The two support rollers 64 support the bearing ring, and the lifting seat 60 is moved upward to move the bearing ring upward until the axis of the bearing ring is higher than the rotation axis of the grinding wheel 30, and then the two fastening nuts 61 are rotated so that the two fastening nuts 61 clamp the two vertical plates 11.

[0028] At this time, the grinding wheel 30 and the guide wheel 40 are moved until the outer periphery of the grinding wheel 30 and the guide wheel 40 abuts against the bearing ring, and then the bolts on the clamping plate 53 are tightened, so that the clamping plate 53 and the baffle plate 50 clamp the guide plate 21, thereby fixing the grinding wheel 30 and the guide wheel 40.

[0029] Then, the two motors 56 are started. The two motors 56 rotate at the same speed but in opposite directions, thereby driving the grinding wheel 30 and the guide wheel 40 to rotate. The friction between the grinding wheel 30 and the bearing ring is greater than the friction between the guide wheel 40 and the bearing ring. Then, the guide wheel 40 drives the bearing ring to rotate. The bearing ring and the grinding wheel 30 rotate in opposite directions, thereby enabling the grinding wheel 30 to grind the bearing ring. At the same time, the friction plate 74 grinds the end face of the bearing ring.

[0030] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A bearing ring grinding fixture, comprising a base (10), characterized in that: A grinding wheel (30) and a guide wheel (40) are rotatably arranged on the upper side of the base (10); a bearing ring is placed between the grinding wheel (30) and the guide wheel (40); a support assembly for supporting the bearing ring is arranged between the grinding wheel (30) and the guide wheel (40); two vertical plates (11) are fixedly arranged on the upper end surface of the base (10); and the support assembly is slidably connected between the two vertical plates (11); The support assembly comprises a lifting seat (60) and a plurality of clamping structures fixed to the upper end surface of the lifting seat (60), wherein the clamping structures are used to maintain the vertical state of the bearing ring. The upper end surface of the lifting seat (60) is fixedly provided with support plates (63) located at both ends thereof, wherein the support plates (63) are in an "M" shape, and two support rollers (64) are arranged between the two support plates (63), wherein the ends of the support rollers (64) are rotatably connected to the two upper ends of the support plates (63).

2. A bearing ring grinding fixture according to claim 1, characterized in that: The clamping structure comprises a bottom plate (70), the upper end surface of the bottom plate (70) being fixed with two symmetrically arranged vertical plates (71), the side surfaces of the two vertical plates (71) being away from each other being fixed with guide seats (72), the vertical plates (71) being provided with a cavity (711) penetrating along the thickness thereof and recessed into the guide seat (72), a guide block (75) being slidably connected in the cavity (711), two friction plates (74) being arranged between the two guide blocks (75), the friction plates (74) being fixed on the guide block (75), and two threaded rods (73) penetrating the cavity (711) being rotatably connected to the guide seat (72), the threaded rods (73) being threadedly connected in the guide block (75).

3. The bearing ring grinding fixture according to claim 1, characterized in that: Screw rods (62) are fixed at both ends of the lifting seat (60), and a groove penetrating along the thickness of the vertical plate (11) is provided on the vertical plate (11). The upper end of the groove is open, and the two screw rods (62) can slide along the two grooves respectively. The screw rods (62) are threadedly connected with a fastening nut (61) that can abut against a side of the vertical plate (11) away from the lifting seat (60).

4. The bearing ring grinding fixture according to claim 1, characterized in that: Two guide plates (21) are arranged on the upper side of the base (10) and are located at two ends of the grinding wheel (30). A column (20) is fixed between the guide plate (21) and the base (10). A guide groove (211) is provided on the guide plate (21) and penetrates along the thickness thereof. The rotation axes of the grinding wheel (30) and the guide wheel (40) penetrate the two guide grooves (211). Two sliders (51) are slidably connected in the guide grooves (211). A baffle plate (50) and a clamping plate (53) are fixed on the slider (51). The baffle plate (50) and the clamping plate (53) clamp the guide plate (21). The two ends of the rotation axes of the grinding wheel (30) and the guide wheel (40) respectively penetrate the slider (51) and the baffle plate (50) on the corresponding side and are rotatably connected to the two.

5. The bearing ring grinding fixture according to claim 4, characterized in that: A clamping block (52) is fixedly provided on a side of the slider (51) away from the grinding wheel (30) or the guide wheel (40), and a through groove (531) penetrating along the thickness of the clamping plate (53) is provided on the clamping plate (53), and the clamping plate (53) is embedded in the through groove (531). The clamping plate (53) is fixed to the slider (51) by bolts.

6. The bearing ring grinding fixture according to claim 5, characterized in that: Two motors (56) are arranged on one side of one of the guide plates (21) away from the grinding wheel (30); a fixing plate (55) is arranged between the motor (56) and the clamping plate (53); four threaded sleeves (54) located at four corners of the clamping plate (53) are fixedly arranged on one side of the clamping plate (53) close to the fixing plate (55); the fixing plate (55) is fixed to the four threaded sleeves (54) by bolts; and the motor (56) is fixed to the fixing plate (55).

7. The bearing ring grinding fixture according to claim 1, characterized in that: Parts of the upper end surface of the lifting seat (60) located on both sides of the clamping structure are arranged as downwardly inclined slopes.

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