Synchronous grinding equipment for inner ring and outer ring of bearing

Abstract

The utility model discloses synchronous grinding equipment for inner and outer rings of a bearing, and relates to the technical field of bearing grinding. The grinding device comprises a grinding table, a positioning supporting assembly is arranged at the top of the grinding table, an outer grinding roller and an inner grinding roller are arranged at the top of the grinding table, pushing assemblies are arranged at the bottoms of the outer grinding roller and the inner grinding roller, and an extrusion driving assembly is arranged on the outer side of the grinding table. The relative positions of the outer grinding roller and the inner grinding roller are adjusted through the pushing assembly, so that the outer grinding roller and the inner grinding roller are in precise contact with the inner surface and the outer surface of the bearing ring respectively, and meanwhile, under extrusion and driving of the extrusion end of the extrusion driving assembly, the bearing ring rotates between the outer grinding roller and the inner grinding roller; therefore, the outer grinding roller and the inner grinding roller synchronously grind the inner surface and the outer surface of the bearing ring. By means of the arrangement, positioning errors caused by repeated clamping in a traditional process are avoided, double-face machining can be completed through one-time clamping, and the process consistency of the grinding precision of the inner surface and the outer surface of the bearing ring is effectively guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of bearing grinding technology, and specifically relates to a bearing inner and outer ring synchronous grinding device. Background Technology

[0002] During the bearing manufacturing process, even after the inner and outer rings of the bearing have undergone preliminary processing, there will still be problems such as micro-geometric defects, shape accuracy deviations and dimensional errors on their surfaces. Therefore, it is necessary to use precision grinding technology to remove surface processing marks and micro-defects, so as to ensure that the dimensional tolerances, geometric accuracy and surface quality of the inner and outer rings of the bearing strictly meet high-precision standards.

[0003] Existing grinding equipment can only grind one side of the bearing ring. This one-sided grinding method requires frequent changes in the clamping direction of the bearing ring or multiple disassembly and assembly of the workpiece when grinding both the inner and outer sides of the bearing ring. This not only significantly extends the processing cycle of a single batch and increases the cost of manual intervention, but also affects the consistency of grinding accuracy on both sides of the bearing ring due to the inevitable accumulation of positioning errors during multiple clamping processes. Utility Model Content

[0004] To address the problem of frequently changing the clamping direction of bearing rings when grinding the inner and outer rings, this invention proposes a synchronous grinding device for bearing inner and outer rings to overcome the aforementioned technical problems in existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a bearing inner and outer ring synchronous grinding equipment, including a grinding table, a positioning support assembly on the top of the grinding table, an outer grinding roller and an inner grinding roller on the top of the grinding table, a pushing assembly at the bottom of the outer grinding roller and the inner grinding roller, and a squeezing drive assembly on the outer side of the grinding table.

[0007] The positioning support assembly is used to position the bearing ring. The outer grinding roller and the inner grinding roller clamp the bearing ring under the drive of the pushing assembly. The extrusion end of the extrusion drive assembly is used to extrude the outer side of the bearing ring so that the extrusion end drives the bearing ring to rotate.

[0008] Furthermore, the positioning support assembly includes a movable groove, several of which are provided on the top of the grinding table. A screw is rotatably connected inside the movable groove, and a movable block is threadedly connected to the outside of the screw. A positioning rod is provided on the top of the movable block.

[0009] Further, the top of the moving block is fixedly connected with an arc-shaped supporting plate, the positioning rod is rotationally connected with the arc-shaped supporting plate, and the top of the arc-shaped supporting plate is rotationally connected with a plurality of ball bearings.

[0010] Further, the top of the grinding table is provided with a mounting groove, one end of each of the plurality of screw rods extends into the mounting groove, the outer surfaces of the plurality of screw rods are fixedly connected with bevel gears, the plurality of bevel gears are meshed with each other, the outer side of the grinding table is fixedly provided with a positioning motor, and the output end of the positioning motor is fixedly connected with one of the screw rods.

[0011] Further, the pushing assembly comprises a pushing groove, the pushing groove is formed in the top of the grinding table, a bidirectional screw rod is rotationally connected in the pushing groove, a pushing plate is threadedly connected to the outer surface of the bidirectional screw rod, the pushing plate is symmetrically provided with two, the pushing plate is provided with an L-shaped mounting plate in the inside, the outer grinding roller and the inner grinding roller are fixedly installed in the inside of the corresponding L-shaped mounting plate, a fixing rod is fixedly connected in the inside of the pushing groove, the pushing plate is movably connected with the fixing rod, and one end of the bidirectional screw rod penetrates through the grinding table and is fixedly connected with a control disc.

[0012] Further, the outer side of the pushing plate is movably connected with a T-shaped rod, one end of the T-shaped rod penetrates through the pushing plate and is fixedly connected with the corresponding L-shaped mounting plate, and a spring is fixedly connected between the pushing plate and the corresponding L-shaped mounting plate.

[0013] Further, the extrusion driving assembly comprises a fixing frame, the fixing frame is fixedly installed at the bottom of the grinding table, a hydraulic cylinder is fixedly installed at the outer side of the fixing frame, the output end of the hydraulic cylinder penetrates through the fixing frame and is fixedly connected with an extrusion frame, a rubber rotating roller is rotationally connected in the inside of the extrusion frame, a driving motor is fixedly installed at the top of the extrusion frame, and the output end of the driving motor is fixedly connected with the shaft head of the rubber rotating roller.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a pushing assembly is adjusted the relative position of outer grinding roller and inner grinding roller, makes it respectively with the inner and outer surface of bearing ring form precision contact, and under the action of extrusion driving assembly, its extrusion end can exert radial pressure to the outer surface of bearing ring, when extrusion end rotates, bearing ring will generate autorotation between outer grinding roller and inner grinding roller under the action of friction torque, thereby realizing synchronous grinding processing of outer grinding roller and inner grinding roller to the inner and outer surface of bearing ring, and the positioning error caused by repeated clamping in traditional process is avoided, and double -sided processing can be completed through once clamping, effectively ensure the process consistency of bearing ring inner and outer surface grinding precision.

[0016] The utility model discloses a control disc, two -way screw rod, push board and L type mounting plate can push respectively to outer grinding roller and inner grinding roller, when outer grinding roller and inner grinding roller contact together with bearing ring, continue to rotate to two -way screw rod, at this moment push board will synchronous compression spring and drive T type rod to produce compensation displacement, thereby form continuously increasing elastic pre -tension, above -mentioned setting makes spring through L type mounting plate can dynamic pressure transmission to corresponding grinding roller place to ensure that outer grinding roller and inner grinding roller always keep constant pressure contact with bearing ring surface in the grinding process, thereby realize stable adaptive grinding processing.

[0017] Of course, it is not necessary for any product embodying the utility model to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be needed to use the drawing of the embodiment briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is the external contour structure schematic diagram of the utility model;

[0020] Figure 2 It is the utility model's Figure 1 Rear view structure schematic diagram;

[0021] Figure 3 It is the grinding roller structure schematic diagram of the utility model;

[0022] Figure 4 It is the push assembly structure schematic diagram of the utility model;

[0023] Figure 5 It is the positioning support assembly structure schematic diagram of the utility model;

[0024] Figure 6 It is the extrusion drive assembly structure schematic diagram of the utility model.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 1, grinding table; 2, positioning support assembly; 201, moving groove; 202, screw; 203, moving block; 204, positioning rod; 205, arc-shaped support plate; 206, ball; 207, mounting groove; 208, bevel gear; 209, positioning motor; 3, outer grinding roller; 4, inner grinding roller; 5, pushing assembly; 501, pushing groove; 502, bidirectional screw; 503, L-shaped mounting plate; 504, fixed rod; 505, control disc; 506, T-shaped rod; 507, spring; 508, pushing plate; 6, extrusion driving assembly; 601, fixed frame; 602, hydraulic cylinder; 603, extrusion frame; 604, rubber roller; 605, driving motor. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

[0029] Please refer to Figures 1-6 The utility model discloses a bearing inner and outer ring synchronous grinding equipment, including grinding table 1, the top of grinding table 1 is provided with positioning support assembly 2, the top of grinding table 1 is provided with outer grinding roller 3 and inner grinding roller 4, the bottom of outer grinding roller 3 and inner grinding roller 4 is provided with pushing assembly 5, the outer side of grinding table 1 is provided with extrusion driving assembly 6;

[0030] Positioning support assembly 2 is used for positioning bearing ring, outer grinding roller 3 and inner grinding roller 4 are driven by pushing assembly 5 to complete the clamping of bearing ring, and the extrusion end of extrusion driving assembly 6 is used for extruding the outer side of bearing ring, so that the extrusion end drives the bearing ring to rotate.

[0031] When the bearing ring is ground, the bearing ring is directly placed on the support end of the positioning support assembly 2, and then the positioning ends are moved so that the positioning ends are in contact with the inner wall of the bearing ring; then the outer grinding roller 3 and the inner grinding roller 4 are moved by the pushing assembly 5, so that the outer grinding roller 3 and the inner grinding roller 4 are in contact with the inner and outer surfaces of the bearing ring respectively; finally, the extrusion driving assembly 6 is driven, so that the extrusion end is in contact with the outer surface of the bearing ring, and the extrusion end rotates, so that the bearing rotates between the outer grinding roller 3 and the inner grinding roller 4 under the driving of the extrusion end.

[0032] The relative positions of the outer grinding roller 3 and the inner grinding roller 4 are adjusted by the pushing assembly 5, so that they are in precise contact with the inner and outer surfaces of the bearing ring respectively, and the extrusion end of the extrusion driving assembly 6 can apply radial pressure to the outer surface of the bearing ring under the action of the extrusion driving assembly 6. When the extrusion end rotates, the bearing ring will generate autorotation between the outer grinding roller 3 and the inner grinding roller 4 under the action of the friction torque, so as to realize synchronous grinding of the outer grinding roller 3 and the inner grinding roller 4 on the inner and outer surfaces of the bearing ring. The above setting avoids the positioning error caused by repeated clamping in the traditional process, and the double-sided processing can be completed by one clamping, which effectively ensures the process consistency of the grinding precision of the inner and outer surfaces of the bearing ring.

[0033] In one embodiment, for the positioning support assembly 2 described above, the positioning support assembly 2 comprises a plurality of moving grooves 201, and the moving grooves 201 are provided on the top of the grinding table 1. A screw rod 202 is rotatably connected inside the moving groove 201, a moving block 203 is threadedly connected to the outside of the screw rod 202, and a positioning rod 204 is arranged on the top of the moving block 203.

[0034] By rotating the plurality of screw rods 202, the rotating screw rods 202 drive the positioning rods 204 to move through the corresponding moving blocks 203, so that the plurality of positioning rods 204 can be in contact with the inner wall of the bearing ring. At this time, the plurality of positioning rods 204 can cooperate to position the bearing ring, so that the stability of the subsequent rotation of the bearing ring can be guaranteed.

[0035] In one embodiment, for the moving block 203 described above, the top of the moving block 203 is fixedly connected with an arc-shaped support plate 205, the positioning rod 204 is rotatably connected with the arc-shaped support plate 205, and a plurality of ball bearings 206 are rotatably connected to the top of the arc-shaped support plate 205.

[0036] The arc-shaped support plate 205 can support the bearing ring through the ball 206. When the bearing ring rotates, the ball 206 on the arc-shaped support plate 205 rotates together with the bearing ring, and the positioning rod 204 in contact with the inner wall of the bearing ring can rotate on the arc-shaped support plate 205. The above arrangement makes the subsequent bearing ring rotate more smoothly.

[0037] In one embodiment, for the above grinding table 1, the top of the grinding table 1 is provided with a mounting groove 207, one end of each of the plurality of screw rods 202 extends into the interior of the mounting groove 207, the outer surfaces of the plurality of screw rods 202 are fixedly connected with bevel gears 208, the plurality of bevel gears 208 are meshed with each other, and a positioning motor 209 is fixedly installed on the outer side of the grinding table 1, and the output end of the positioning motor 209 is fixedly connected with one of the screw rods 202.

[0038] The positioning motor 209 drives one of the screw rods 202, and the rotating screw rod 202 drives all the screw rods 202 to rotate synchronously through the meshed bevel gears 208, and also drives the plurality of positioning rods 204 to move synchronously. This arrangement enables the bearing ring to be collinear with the grinding table shaft after the positioning rods 204 complete the positioning of the bearing ring, so that the outer grinding roller 3 and the inner grinding roller 4 can better contact the bearing ring under the pushing of the pushing assembly 5. Meanwhile, only the positioning motor 209 needs to be driven when positioning the bearing ring, which is more convenient to operate.

[0039] In one embodiment, for the above pushing assembly 5, the pushing assembly 5 comprises a pushing groove 501, the pushing groove 501 is provided on the top of the grinding table 1, a bidirectional screw rod 502 is rotatably connected in the interior of the pushing groove 501, a pushing plate 508 is threadedly connected to the outer surface of the bidirectional screw rod 502, the pushing plate 508 is symmetrically provided with two, an L-shaped mounting plate 503 is arranged in the interior of the pushing plate 508, the outer grinding roller 3 and the inner grinding roller 4 are fixedly installed in the interior of the corresponding L-shaped mounting plate 503, a fixed rod 504 is fixedly connected in the interior of the pushing groove 501, the pushing plate 508 is movably connected with the fixed rod 504, and one end of the bidirectional screw rod 502 penetrates through the grinding table 1 and is fixedly connected with a control disc 505.

[0040] The bidirectional screw 502 can be rotated through the control disc 505, at this time, the two push plates 508 can move inside the push groove 501 under the drive of the bidirectional screw 502 and the guidance of the fixed rod 504, and the two push plates 508 can push the outer grinding roller 3 and the inner grinding roller 4 respectively through the corresponding L-shaped mounting plate 503, so that the outer grinding roller 3 and the inner grinding roller 4 can be in contact with the bearing ring; the arrangement of the moving outer grinding roller 3 and the inner grinding roller 4 makes that the outer grinding roller 3 and the inner grinding roller 4 will not hinder the positioning of the bearing ring.

[0041] In one embodiment, for the push plate 508, a T-shaped rod 506 is movably connected to the outer side of the push plate 508, one end of the T-shaped rod 506 penetrates through the push plate 508 and is fixedly connected with the corresponding L-shaped mounting plate 503, and a spring 507 is fixedly connected between the push plate 508 and the corresponding L-shaped mounting plate 503.

[0042] When the outer grinding roller 3 and the inner grinding roller 4 are in contact with the bearing ring, the bidirectional screw 502 is continuously rotated, at this time, the push plate 508 will synchronously compress the spring 507 and drive the T-shaped rod 506 to generate a compensation displacement, thereby forming a continuously increasing elastic pre-tightening force, and the above arrangement makes that the spring 507 can transmit the dynamic pressure to the corresponding grinding roller through the L-shaped mounting plate 503, thereby ensuring that the outer grinding roller 3 and the inner grinding roller 4 are always in constant pressure contact with the surface of the bearing ring during the grinding process, thereby realizing stable adaptive grinding processing.

[0043] In one embodiment, for the extrusion driving assembly 6, the extrusion driving assembly 6 comprises a fixed frame 601 fixedly installed at the bottom of the grinding table 1, a hydraulic cylinder 602 fixedly installed at the outer side of the fixed frame 601, an extrusion frame 603 penetrating through the fixed frame 601 and fixedly connected with the output end of the hydraulic cylinder 602, a rubber rotating roller 604 rotatably connected inside the extrusion frame 603, and a drive motor 605 fixedly installed at the top of the extrusion frame 603, and the output end of the drive motor 605 is fixedly connected with the shaft head of the rubber rotating roller 604.

[0044] The rubber rotating roller 604 is in contact with the outer ring of the bearing under the drive of the extrusion frame 603 through the pushing of the hydraulic cylinder 602, and the drive motor 605 drives the rubber rotating roller 604 to rotate when the bearing is ground, at this time, the rotating rubber rotating roller 604 can drive the bearing ring to rotate between the outer grinding roller 3 and the inner grinding roller 4 through the extrusion force and the friction force, so that the inner and outer surfaces of the bearing ring can be ground in all directions.

[0045] Through the technical scheme, 1, the relative position of the outer grinding roller 3 and the inner grinding roller 4 is adjusted by the pushing assembly 5, so that the outer grinding roller 3 and the inner grinding roller 4 are in precise contact with the inner and outer surfaces of the bearing ring respectively, and under the action of the extrusion driving assembly 6, the extrusion end can exert radial pressure on the outer surface of the bearing ring, when the extrusion end rotates, the bearing ring will produce rotation between the outer grinding roller 3 and the inner grinding roller 4 under the action of the friction torque, so as to realize the synchronous grinding of the outer grinding roller 3 and the inner grinding roller 4 on the inner and outer surfaces of the bearing ring; the above setting avoids the positioning error caused by repeated clamping in the traditional process, and the double-sided processing can be completed by one-time clamping, which effectively ensures the process consistency of the grinding precision of the inner and outer surfaces of the bearing ring; 2, the outer grinding roller 3 and the inner grinding roller 4 can be pushed by controlling the disc 505, the bidirectional screw rod 502, the pushing plate 508 and the L-shaped mounting plate 503, when the outer grinding roller 3 and the inner grinding roller 4 are in contact with the bearing ring, continue to rotate the bidirectional screw rod 502, at this time the pushing plate 508 will compress the spring 507 synchronously and drive the T-shaped rod 506 to produce a compensation displacement, thereby forming an elastic pre-tightening force that continuously increases, the above setting enables the spring 507 to transmit dynamic pressure to the corresponding grinding roller through the L-shaped mounting plate 503, so as to ensure that the outer grinding roller 3 and the inner grinding roller 4 are in constant pressure contact with the surface of the bearing ring during the grinding process, thereby realizing stable adaptive grinding processing.

[0046] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A bearing inner and outer ring synchronous lapping apparatus comprising a lapping table (1), characterized in that, The top of the grinding table (1) is provided with a positioning support assembly (2), the top of the grinding table (1) is provided with an outer grinding roller (3) and an inner grinding roller (4), the bottom of the outer grinding roller (3) and the inner grinding roller (4) is provided with a pushing assembly (5), the outer side of the grinding table (1) is provided with an extrusion driving assembly (6); The positioning support assembly (2) is used for positioning the bearing ring, the outer grinding roller (3) and the inner grinding roller (4) drive the bearing ring to be clamped under the action of the pushing assembly (5), and the extrusion end of the extrusion driving assembly (6) is used for extruding the outer side of the bearing ring, so that the extrusion end drives the bearing ring to rotate.

2. The apparatus for synchronously lapping inner and outer rings of a bearing according to claim 1, wherein The positioning support assembly (2) comprises a moving groove (201), a plurality of moving grooves (201) are formed in the top of the grinding table (1), a screw rod (202) is rotatably connected in the moving groove (201), a moving block (203) is threadedly connected to the outer side of the screw rod (202), and a positioning rod (204) is arranged on the top of the moving block (203).

3. The apparatus for synchronously lapping inner and outer rings of a bearing according to claim 2, wherein The top of the moving block (203) is fixedly connected with an arc-shaped support plate (205), the positioning rod (204) is rotatably connected with the arc-shaped support plate (205), and a plurality of ball bearings (206) are rotatably connected to the top of the arc-shaped support plate (205).

4. The apparatus for synchronously lapping inner and outer rings of a bearing according to claim 3, wherein A mounting groove (207) is formed in the top of the grinding table (1), one end of each of the plurality of screw rods (202) extends into the mounting groove (207), a bevel gear (208) is fixedly connected to the outer surface of each of the plurality of screw rods (202), the plurality of bevel gears (208) are meshed with each other, a positioning motor (209) is fixedly installed on the outer side of the grinding table (1), and the output end of the positioning motor (209) is fixedly connected with one of the screw rods (202).

5. The apparatus for synchronously lapping inner and outer rings of a bearing according to claim 1, wherein The pushing assembly (5) comprises a pushing groove (501) formed in the top of the grinding table (1), a bidirectional screw rod (502) is rotatably connected in the pushing groove (501), a pushing plate (508) is threadedly connected to the outer surface of the bidirectional screw rod (502), the pushing plate (508) is symmetrically provided with two, an L-shaped mounting plate (503) is arranged in the pushing plate (508), the outer grinding roller (3) and the inner grinding roller (4) are fixedly installed in the corresponding L-shaped mounting plate (503), a fixing rod (504) is fixedly connected in the pushing groove (501), the pushing plate (508) is movably connected with the fixing rod (504), and one end of the bidirectional screw rod (502) penetrates through the grinding table (1) and is fixedly connected with a control disc (505).

6. The apparatus for synchronously lapping inner and outer rings of a bearing according to claim 5, wherein A T-shaped rod (506) is movably connected to the outer side of the pushing plate (508), one end of the T-shaped rod (506) penetrates through the pushing plate (508) and is fixedly connected with the corresponding L-shaped mounting plate (503), and a spring (507) is fixedly connected between the pushing plate (508) and the corresponding L-shaped mounting plate (503).

7. The apparatus according to claim 1, wherein The extrusion driving assembly (6) comprises a fixing frame (601) fixedly installed at the bottom of the grinding table (1), a hydraulic cylinder (602) fixedly installed at the outer side of the fixing frame (601), the output end of the hydraulic cylinder (602) penetrating through the fixing frame (601) and being fixedly connected with an extrusion frame (603), a rubber rotating roller (604) rotatably connected in the interior of the extrusion frame (603), and a driving motor (605) fixedly installed at the top of the extrusion frame (603), the output end of the driving motor (605) being fixedly connected with the shaft head of the rubber rotating roller (604).

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