Double-inner-ring machining and grinding device for bearing machining

Abstract

The invention discloses a double-inner-ring machining and grinding device for bearing machining, and belongs to the technical field of bearing machining and grinding. The fixing mechanism comprises a clamping jaw arranged on the workbench and is used for fixing the double-inner-ring bearing during grinding; the limiting component is used for limiting the clamping jaw; the contact position of the conical wheel and the transmission wheel in the transmission structure can be automatically adjusted along with the change of the diameter of the bearing, when the large-diameter bearing is machined, the transmission wheel makes contact with the large-outer-diameter position of the conical wheel, the rotating speed of the bearing is reduced, the heat dissipation time of single-time grinding is prolonged, and the influence of thermal stress on the precision of a workpiece is reduced; centrifugal force interference is reduced; when a small-diameter bearing is machined, the transmission wheel makes contact with the small-outer-diameter position of the conical wheel, the rotating speed is increased so as to improve the grinding efficiency, the self-adaptive design that the transmission ratio does not need to be manually adjusted is adopted, the machining quality of a large-size workpiece is guaranteed, and the machining efficiency of a small-size workpiece is also considered.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing processing and grinding, and in particular relates to a double inner ring processing and grinding device for bearing processing. Background Art

[0002] In the field of modern mechanical manufacturing, bearings, as key mechanical components, are widely used in various rotating equipment. Their processing accuracy and quality are directly related to the operating performance and service life of the equipment. Double inner ring bearings, as bearings with a special structure, are widely used in high-precision, high-performance mechanical transmission systems because they can withstand greater loads and more complex working conditions. Therefore, the outer surface grinding of such bearings has high requirements on the stability, adaptability and efficiency of the equipment.

[0003] The transmission ratio of traditional bearing grinding devices is mostly fixed and cannot be flexibly adjusted according to the diameter size of double inner ring bearings. When processing large-diameter bearings, if the speed is too high, large instantaneous thermal stress will be generated, resulting in damage to the workpiece accuracy, and the increase in centrifugal force will also interfere with the positioning of the workpiece; when processing small-diameter bearings, the fixed low speed will reduce the grinding efficiency, making it difficult to balance the processing quality and efficiency of workpieces of different sizes. Summary of the Invention

[0004] The object of the present invention is to provide a double inner ring grinding device for bearing machining to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a double inner ring grinding device for bearing processing, comprising: Workbench; A fixing mechanism, including claws arranged on the workbench, used to fix the double inner ring bearing during grinding; It also includes a limiting component for limiting the claws; A transmission structure, including a tapered wheel arranged on the workbench, for driving the double inner ring bearing to rotate, and the transmission structure is further provided with an adjustment assembly, including a collar arranged on the workbench; The grinding mechanism includes a grinding wheel arranged above the jaws for grinding the outer surface of the double inner ring bearing, and also includes a control component for driving the grinding wheel to rise and fall; As a further preferred embodiment of this technical solution: the fixing mechanism further includes: The hollow cylinder is rotatably connected to the box provided on the workbench and is used to support the claw, and the claw is slidably connected to the hollow cylinder, and the conical wheel is fixedly connected to one end of the hollow cylinder; A telescopic spring, one end of which is fixedly connected to the inner wall of the hollow cylinder, and the other end of which is fixedly connected to one end of the claw; The conical block is slidably connected to the hollow cylinder and is used to adjust the claws, with one end of the claw being fitted on the conical block, and the collar being fixedly arranged on the conical block; A threaded rod, one end of which is rotatably connected to the hollow cylinder, and a tapered block is threadedly connected to the threaded rod; As a further preferred embodiment of the present technical solution: a steel ball is provided at one end of the claw for rotationally connecting the claw with a ball joint, so as to reduce the friction between the claw and the tapered block; As a further preferred embodiment of the present technical solution: the limiting component includes: A fixed plate, fixedly arranged on the hollow cylinder; Bolts, with threads running through them and connected to the fixing plate, are used to restrain the threaded rods; As a further preferred embodiment of this technical solution: the transmission structure further includes: The transmission wheel is used to drive the conical wheel to rotate, and the transmission wheel is attached to the conical wheel; A first power source is used to drive the transmission wheel to rotate, and the transmission wheel is fixedly arranged at the output end of the first power source, and the base at the bottom of the first power source is slidably connected to a slide groove provided on the workbench; As a further preferred embodiment of the present technical solution: the adjustment component further includes: A connecting rod, one end of which is fixedly connected to a base at the bottom of the first power source and is used to drive the first power source to move; A hollow column is used to limit the connecting rod, and one end of the connecting rod is slidably connected to the hollow column; The circular ring is slidably connected to a slide groove provided on the workbench and is used to drive the hollow column to move, and one end of the hollow column is fixedly arranged at the lower end of the circular ring, and the circular ring is rotatably connected to the sleeve; As a further preferred embodiment of the present technical solution: the upper end of the circular ring is a T-shaped ring, and the collar is provided with a T-shaped groove corresponding to the circular ring; As a further preferred embodiment of this technical solution: the grinding mechanism further includes: A second power source is used to drive the grinding wheel to rotate, and the grinding wheel is fixedly arranged at the output end of the second power source; A base, used to support a second power source, and the second power source is arranged at the bottom of the base; A slide bar is fixedly arranged on the upper surface of the base and is used to limit the position of the base; A spring, the upper end of which is fixedly arranged on the upper end of the slide bar and is used to reset the slide bar; As a further preferred embodiment of the present technical solution: the control component includes: A support frame is provided on the upper surface of one side of the workbench, and a slide rod is slidably connected to the upper end of the support frame, and one side of the base is slidably connected to a through slot provided on the support frame; One end of the shifting rod is rotatably connected to one side of the support frame for driving the base to move, and the circular shaft on one side of the base is slidably connected to the limiting groove provided on the shifting rod.

[0006] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the contact position between the tapered wheel and the transmission wheel in the transmission structure is automatically adjusted as the bearing diameter changes. When processing large-diameter bearings, the transmission wheel contacts the large outer diameter of the tapered wheel, which reduces the bearing speed, prolongs the heat dissipation time of a single grinding, reduces the impact of thermal stress on workpiece accuracy, and reduces centrifugal force interference. When processing small-diameter bearings, the transmission wheel contacts the small outer diameter of the tapered wheel, increases the speed to improve grinding efficiency. The adaptive design eliminates the need for manual adjustment of the transmission ratio, thereby ensuring the processing quality of large-size workpieces while taking into account the processing efficiency of small-size workpieces.

[0007] 2. In the present invention, the fixing mechanism can simultaneously drive the three groups of claws to expand outward through the cooperation of the tapered block, the claws and the telescopic spring, thereby achieving uniform clamping of the double inner ring bearing. The setting of the abutment plate further limits one side of the bearing, and the locking of the threaded rod by the bolt can ensure that the bearing does not deviate or shake during high-speed grinding, thereby significantly improving the processing accuracy. In addition, the contact point between the claws and the tapered block adopts a steel ball and lubricating oil drag reduction design, which makes the expansion adjustment of the claws smoother and can adapt to double inner ring bearings of different inner diameter sizes, thereby enhancing the versatility of the device.

[0008] 3. In the present invention, the control component of the grinding mechanism makes the lifting and lowering operation of the grinding wheel simple and labor-saving through the cooperation of the lever and the spring. The operator can flexibly control the contact force according to the grinding requirements, which reduces the difficulty of operation. The upper cover of the box is connected with screws, which is convenient for the inspection and maintenance of internal parts; the grinding wheel is fixed with screws and nuts, which is convenient for quick replacement of worn parts, reducing the downtime of equipment maintenance and improving overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural diagram showing a double inner ring grinding device for bearing processing according to the present invention; Figure 2 This is a partial structural cross-sectional view of a double inner ring grinding device for bearing processing according to the present invention; Figure 3 This is an exploded view of the partial structure of a double inner ring grinding device for bearing processing according to the present invention; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 This is a partial structural diagram of a double inner ring grinding device for bearing processing according to the present invention; Figure 6This is a schematic diagram of the internal structure of a double inner ring grinding device for bearing processing according to the present invention; Figure 7 The figure is a schematic structural diagram of a double inner ring grinding device for bearing machining according to the present invention.

[0010] Legend: 1. Workbench; Fixing mechanism: 201, claw; 202, telescopic spring; 203, hollow cylinder; 204, tapered block; 205, threaded rod; Limited components: 206, fixing plate; 207, bolt; Transmission structure: 301, conical wheel; 302, transmission wheel; 303, first power source; Adjustment components: 304, connecting rod; 305, hollow column; 306, ring; 307, collar; Grinding mechanism: 401, grinding wheel; 402, second power source; 403, slide rod; 404, spring; 407, base; Control components: 405, support frame; 406, lever. DETAILED DESCRIPTION

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0012] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention. Example

[0013] See also Figure 1-Figure 7As shown, the present invention provides a technical solution: a double inner ring grinding device for bearing processing, comprising: a workbench 1; a fixing mechanism, comprising a clamping claw 201 arranged on the workbench 1, for fixing the double inner ring bearing during grinding; and further comprising a limiting component for limiting the clamping claw 201; a transmission structure, comprising a tapered wheel 301 arranged on the workbench 1, for driving the double inner ring bearing to rotate, and the transmission structure is further provided with an adjustment component, including a sleeve ring 307 arranged on the workbench 1; a grinding mechanism, comprising a grinding wheel 401 arranged above the clamping claw 201, for grinding the outer surface of the double inner ring bearing, and further comprising a control component for driving the grinding wheel 401 to rise and fall; It should also be understood that a protective box is provided on the upper surface of the workbench 1, and the upper cover of the box is connected to the box by screws, so that the user can easily repair the parts inside the box, and a vent is provided on the box, and a filter is provided in the vent; Among them, an abutment plate is provided on one side of one end of the claw 201, which is used to limit one side of the double inner ring bearing; In this embodiment, specifically: the fixing mechanism also includes: a hollow cylinder 203, which is rotatably connected to a box provided on the workbench 1 and is used to support the claw 201, and the claw 201 is slidably connected to the hollow cylinder 203, and the conical wheel 301 is fixedly connected to one end of the hollow cylinder 203; a telescopic spring 404202, one end of which is fixedly connected to the inner wall of the hollow cylinder 203, and the other end is fixedly connected to one end of the claw 201; a conical block 204, which is slidably connected to the hollow cylinder 203 and is used to adjust the claw 201, and one end of the claw 201 is fitted on the conical block 204, and the ring 307 is fixedly arranged on the conical block 204; a threaded rod 205, one end of which is rotatably connected to the hollow cylinder 203, and the conical block 204 is threadedly connected to the threaded rod 205; It should also be noted that the position where the claw 201 contacts the tapered block 204 is set to a concave shape that fits the tapered block 204; Among them, the claws 201 are provided with three groups; In this embodiment, specifically: one end of the claw 201 is provided with a steel ball connected in a ball-jointed manner to reduce the friction between the claw 201 and the tapered block 204; In addition, a suitable amount of lubricating oil may be applied to the joint between the steel ball at one end of the claw 201 and the tapered block 204 to further reduce the friction between the steel ball and the surface of the tapered block 204. In this embodiment, specifically, the limiting component includes: a fixing plate 206 fixedly arranged on the hollow cylinder 203; a bolt 207 threadedly connected to the fixing plate 206 for limiting the threaded rod 205; It should also be understood that the surface of one end of the threaded rod 205 is provided with friction bumps for increasing the friction between the end and the bolt 207, thereby improving the stability during the grinding process of the double inner ring bearing surface; In this embodiment, specifically, the transmission structure further includes: a transmission wheel 302, which is used to drive the conical wheel 301 to rotate, and the transmission wheel 302 is attached to the conical wheel 301; a first power source 303, which is used to drive the transmission wheel 302 to rotate, and the transmission wheel 302 is fixedly arranged at the output end of the first power source 303, and the base at the bottom of the first power source 303 is slidably connected to the slide groove provided on the workbench 1; It should be noted that the surface of the conical wheel 301 is roughened, and the surface of the transmission wheel 302 is also roughened, so as to increase the friction between the transmission wheel 302 and the conical wheel 301, thereby ensuring the stability of power transmission; The base at the bottom of the first power source 303 and the slide groove on the surface of the workbench 1 are both T-shaped to ensure stability, and a proper amount of lubricating oil can be applied at the connection to reduce friction; In addition, the inclination of the first power source 303 and the base is the same as the taper of the outer surface of the conical wheel 301; In this embodiment, specifically, the adjustment assembly further includes: a connecting rod 304, one end of which is fixedly arranged on the base at the bottom of the first power source 303, for driving the first power source 303 to move; a hollow column 305, for limiting the connecting rod 304, and one end of the connecting rod 304 is slidably connected to the hollow column 305; a ring 306, slidably connected to a slide groove provided on the workbench 1, for driving the hollow column 305 to move, and one end of the hollow column 305 is fixedly arranged on the lower end of the ring 306, and the ring 306 is rotatably connected to the collar 307; It should also be understood that the connecting rod 304 is L-shaped, and the sliding connection between one end of the connecting rod 304 and the hollow column 305 may be coated with an appropriate amount of lubricating oil; In this embodiment, specifically: the upper end of the circular ring 306 is a T-shaped ring, and the collar 307 is provided with a T-shaped groove corresponding to the circular ring 306; Among them, the connection between the ring 306 and the collar 307 can be coated with a proper amount of lubricating oil to ensure smooth rotation; In this embodiment, the grinding mechanism further includes: a second power source 402 for driving the grinding wheel 401 to rotate, and the grinding wheel 401 is fixedly arranged at the output end of the second power source 402; a base 407 for supporting the second power source 402, and the second power source 402 is arranged at the bottom of the base 407; a slide rod 403 is fixedly arranged on the upper surface of the base 407 and is used to limit the base 407; a spring 404, the upper end of which is fixedly arranged at the upper end of the slide rod 403 and is used to reset the slide rod 403; It should be noted that the grinding wheel 401 is connected to the connecting piece at the output end of the second power source 402 by screws and nuts, so that the user can easily replace the grinding wheel 401 later. There are four groups of slide bars 403 and four groups of springs 404. In addition, the protrusion on one side of the base 407 is arranged in a cross shape, and a cylinder is provided on one side of the protrusion; In this embodiment, specifically: the control component includes: a support frame 405, which is arranged on the upper surface of one side of the workbench 1, and the slide rod 403 is slidably connected to the upper end of the support frame 405, and one side of the base 407 is slidably connected to the through groove opened in the support frame 405; a driving rod 406, one end of which is rotatably connected to one side of the support frame 405, used to drive the base 407 to move, and the circular shaft on one side of the base 407 is slidably connected to the limiting groove opened on the driving rod 406; It should be noted that the cylinder on the protrusion on one side of the base 407 is slidably connected to the limit groove on the lever 406. When in use, a proper amount of lubricating oil can be applied to the cylinder to increase smoothness, and the shape of the through groove on the support frame 405 is a cross that fits the protrusion.

[0014] Working principle or structural principle: When in use, first put the double inner ring bearing on the outside of the three sets of claws 201, then screw the threaded rod 205 to rotate on the hollow cylinder 203. The threaded rod 205 drives the tapered block 204 to slide on the hollow cylinder 203 through the threaded connection. The tapered block 204 simultaneously drives the three sets of claws 201 to slide outward on the hollow cylinder 203 through the taper and compresses the telescopic springs 404202. When one end of each of the three sets of claws 201 is attached to the inner side of the double inner ring bearing, the fixation is completed. Then, the bolt 207 is turned. The bolt 207 is threadedly connected to the fixing plate 206 and moves to one side. When one end of the bolt 207 abuts against the convex point at one end of the threaded rod 205, the outer surface of the double inner ring bearing is ensured to remain stable during grinding. As the conical block 204 moves, it drives the collar 307 to move, and the collar 307 drives the circular ring 306 to slide on the slide groove on the workbench 1. The circular ring 306 drives the hollow column 305 to move, and the hollow column 305 drives the connecting rod 304 to move. The connecting rod 304 drives the base below the first power source 303 to slide on the slide groove on the workbench 1. The first power source 303 drives the transmission wheel 302 to move, so that the contact point position of the transmission wheel 302 and the conical wheel 301 is adjusted according to the diameter size of the double inner ring bearing to be ground. The transmission ratio between the transmission wheel 302 and the tapered wheel 301 is adjusted by the diameter of the double inner ring bearing being ground. When the diameter of the double inner ring bearing is larger, the contact point of the transmission wheel 302 moves to the larger outer diameter surface of the tapered wheel 301, thereby reducing the speed at which the hollow cylinder 203 drives the double inner ring bearing to rotate. By reducing the rotational speed, the heat dissipation time of a single grinding can be extended, the heat is evenly dispersed, and the damage to the workpiece precision caused by instantaneous thermal stress is reduced. At the same time, the interference of centrifugal force on the workpiece positioning is reduced, thereby improving grinding stability. When the diameter of the double inner ring bearing being ground is small, the contact point of the driving wheel 302 contacts the smaller outer diameter surface of the conical wheel 301, thereby increasing the speed at which the hollow cylinder 203 drives the double inner ring bearing to rotate, thereby improving the grinding efficiency; When the base under the first power source 303 slides along the slide groove on the workbench 1, the base simultaneously drives the connecting rod 304 to slide out of the hollow column 305; Then, the first power source 303 is turned on, which drives the transmission wheel 302 to rotate, which drives the conical wheel 301 to rotate, which drives the hollow cylinder 203 to rotate on the box on the workbench 1, and the hollow cylinder 203 drives the double inner ring bearings on the claw 201 to rotate. Then, the second power source 402 is turned on, which drives the grinding wheel 401 to rotate. Then, the user holds the handle at one end of the lever 406 and rotates the other end of the lever 406 on the support frame 405 to pull the lever 406 downward. The lever 406 drives the base 407 to slide downward in the slide groove on the support frame 405 through the through slot. The base 407 drives the slide bar 403 to slide on the upper end of the support frame 405 and compresses the spring 404. The base 407 simultaneously drives the grinding wheel 401 on the second power source 402 to move. As the user controls the contact between the grinding wheel 401 and the outer surface of the double inner ring bearing according to the grinding degree of the double inner ring bearing surface, the bearing is polished. When the outer surface of the double inner ring bearing is polished to the required finish, the lever 406 is released, and the slide rod 403 drives the second power source 402 on the base 407 to reset upward through the rebound of the four sets of springs 404, thereby making it easier for the user to control the movement of the grinding wheel 401 when grinding the surface of the double inner ring bearing.

[0015] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A double inner ring grinding device for bearing processing, characterized by: include: Workbench (1); A fixing mechanism, comprising a clamping claw (201) arranged on the workbench (1) and used for fixing the double inner ring bearing during grinding; It also includes a limiting component for limiting the claw (201); A transmission structure comprising a conical wheel (301) arranged on a workbench (1) for driving the double inner ring bearing to rotate, and the transmission structure is further provided with an adjustment assembly comprising a collar (307) arranged on the workbench (1); The grinding mechanism comprises a grinding wheel (401) arranged above the clamping claw (201) for grinding the outer surface of the double inner ring bearing, and also comprises a control component for driving the grinding wheel (401) to rise and fall.

2. The double inner ring grinding device for bearing processing according to claim 1, characterized in that: The fixing mechanism also includes: The hollow cylinder (203) is rotatably connected to a box provided on the workbench (1) and is used to support the claw (201), and the claw (201) is slidably connected to the hollow cylinder (203), and the conical wheel (301) is fixedly connected to one end of the hollow cylinder (203); A telescopic spring (404) (202), one end of which is fixedly connected to the inner wall of the hollow cylinder (203), and the other end of which is fixedly connected to one end of the claw (201); The conical block (204) is slidably connected to the hollow cylinder (203) and is used to adjust the claw (201), and one end of the claw (201) is fitted on the conical block (204), and the collar (307) is fixedly arranged on the conical block (204); One end of the threaded rod (205) is rotatably connected to the hollow cylinder (203), and the tapered block (204) is threadedly connected to the threaded rod (205).

3. The double inner ring grinding device for bearing processing according to claim 2, characterized in that: One end of the claw (201) is provided with a steel ball that is rotatably connected to the ball joint, and is used to reduce the friction between the claw (201) and the tapered block (204).

4. The double inner ring grinding device for bearing processing according to claim 3, characterized in that: Qualified parts include: A fixed plate (206) is fixedly arranged on the hollow cylinder (203); The bolt (207) is threadedly connected to the fixing plate (206) and is used to limit the threaded rod (205).

5. The double inner ring grinding device for bearing processing according to claim 4, characterized in that: The transmission structure also includes: A transmission wheel (302) is used to drive the conical wheel (301) to rotate, and the transmission wheel (302) is attached to the conical wheel (301); The first power source (303) is used to drive the transmission wheel (302) to rotate, and the transmission wheel (302) is fixedly arranged at the output end of the first power source (303), and the base at the bottom of the first power source (303) is slidably connected to a slide groove opened on the workbench (1).

6. The double inner ring grinding device for bearing processing according to claim 5, characterized in that: The adjustment components also include: A connecting rod (304), one end of which is fixedly connected to a base at the bottom of the first power source (303), and is used to drive the first power source (303) to move; A hollow column (305) is used to limit the connecting rod (304), and one end of the connecting rod (304) is slidably connected to the hollow column (305); The circular ring (306) is slidably connected in a chute provided on the workbench (1) and is used to drive the hollow column (305) to move, and one end of the hollow column (305) is fixedly arranged at the lower end of the circular ring (306), and the circular ring (306) is rotatably connected to the sleeve ring (307).

7. The double inner ring grinding device for bearing processing according to claim 6, characterized in that: The upper end of the circular ring (306) is a T-shaped ring, and the collar (307) is provided with a T-shaped groove corresponding to the circular ring (306).

8. The double inner ring grinding device for bearing processing according to claim 7, characterized in that: The grinding mechanism also includes: A second power source (402) is used to drive the grinding wheel (401) to rotate, and the grinding wheel (401) is fixedly connected to the output end of the second power source (402); A base (407) is used to support the second power source (402), and the second power source (402) is arranged at the bottom of the base (407); A slide bar (403) is fixedly arranged on the upper surface of the base (407) and is used to limit the base (407); The spring (404) has an upper end fixedly connected to the upper end of the slide bar (403) and is used to reset the slide bar (403).

9. The double inner ring grinding device for bearing processing according to claim 8, characterized in that: Control components include: A support frame (405) is provided on the upper surface of one side of the workbench (1), and a slide rod (403) is slidably connected to the upper end of the support frame (405), and one side of the base (407) is slidably connected to a through slot provided in the support frame (405); One end of the shifting rod (406) is rotatably connected to one side of the support frame (405) for driving the base (407) to move, and the circular shaft on one side of the base (407) is slidably connected to the limiting groove provided on the shifting rod (406).

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