A bearing ring inner surface polishing device for bearing machining and manufacturing

Abstract

The application is suitable for the technical field of bearing inner ring processing, and the device comprises a positioning mechanism and a polishing mechanism. The positioning mechanism comprises a processing piece and a clamping piece reciprocally arranged on the processing piece, and the polishing mechanism comprises a locking piece slidingly arranged on the processing piece and an inner surface polishing piece rotationally fitted in the locking piece. The inner surface polishing piece is provided with a center disc, the center disc is provided with a guide groove and slidingly fitted with a special-shaped frame, and the special-shaped frame is fixed with an inner surface polishing roller at the bottom. A threaded guide column and a slidingly fitted conical cover body are arranged at the top of the center disc, and the sliding ball at the end of the side extension rod of the special-shaped frame is in contact with the inner surface of the conical cover body. The radial working diameter of the inner surface polishing roller can be steplessly adjusted by rotating the adjusting nut to change the position of the conical cover body, and the polishing head does not need to be replaced. During the reciprocating movement of the clamping piece, the positioning roller is automatically clamped to the bearing ring along the center by the meshing of the rack and the ring gear, so that automatic centering and conveying are realized.

Description

Technical Field

[0001] This invention relates to the field of bearing inner ring machining technology, and more specifically, to a bearing ring inner surface grinding device for bearing machining and manufacturing. Background Technology

[0002] As a key component in mechanical transmission systems, the machining quality of the inner surface of bearings directly affects their rotational accuracy, service life, and noise level. Grinding the inner surface of the bearing race is an important process in bearing manufacturing. Its purpose is to remove machining marks, burrs, and minor deformations from the inner wall to obtain the specified surface roughness and dimensional accuracy.

[0003] Currently, most bearing ring inner surface grinding devices on the market adopt a fixed or manually adjustable grinding head structure. For example, some devices fix the grinding wheel or grinding head on the spindle, and the grinding of the inner wall of the bearing ring is achieved by the rotation and feed of the spindle. Although this type of device has a simple structure, it has the following defects in actual production: There are many specifications for the inner diameter of existing bearing rings. The working diameter of the grinding head of traditional grinding equipment is fixed or has a limited adjustment range. When it is necessary to process bearing rings with different inner diameters, the machine must be stopped and the grinding head of the corresponding size must be replaced. Uneven clamping force can easily cause the workpiece axis to deviate from the grinding spindle axis, resulting in out-of-tolerance roundness or uneven wall thickness of the inner surface after grinding. The operation is cumbersome and time-consuming, which reduces the processing efficiency and equipment utilization rate during mass production. Summary of the Invention

[0004] To address the technical shortcomings of existing technologies, such as cumbersome downtime for changeovers due to the numerous inner diameter specifications of bearing rings and the potential for coaxiality errors introduced by manual clamping, the present invention aims to provide a bearing ring inner surface grinding device for bearing processing and manufacturing. This solution utilizes a horizontally reciprocating linear stroke integrated trigger centering roller for centripetal tightening. Simultaneously, it achieves mechanical centering of the bearing ring while using axial fine-tuning to drive the grinding roller for radial tension expansion. This allows for high-precision, highly flexible composite grinding of bearing rings of various specifications without requiring replacement of the grinding head.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A bearing ring inner surface grinding device for bearing processing and manufacturing includes a positioning mechanism and a grinding mechanism. The positioning mechanism includes a workpiece and a clamping member reciprocating on the workpiece. The grinding mechanism includes a locking member slidably disposed on the workpiece and an inner surface grinding component rotatably fitted inside the locking member. The inner surface grinding component includes a central disc with two symmetrical guide grooves extending through its top. A shaped frame is slidably fitted inside each of the two guide grooves. A top plate is fixed to the bottom of each shaped frame, and an inner surface grinding roller is fixed to the bottom of the top plate. A first spring is fixed to the inner wall of each of the two guide grooves, and one end of each first spring is fixedly connected to one side of each of the two shaped frames. Two symmetrically arranged threaded guide posts are fixed to the top of the central disc. A conical cover is slidably fitted between the two threaded guide posts. Extension rods are fixed to the sides of the two shaped frames inside the conical cover, and sliding balls that slide against the inner surface of the conical cover are fixed to the ends of the two extension rods.

[0006] Preferably, two second springs are fixed between the conical cover and the central disk, each sleeved on one of the two threaded guide posts. The two threaded guide posts are threaded with adjusting nuts on their peripheral sides at the top of the conical cover. The inner wall of the guide groove is fixed with limiting guide rods that slide through and engage with the two irregular frames. The two first springs are respectively sleeved on the two limiting guide rods. The processing part includes a processing table. A side plate is fixed on one side of the processing table, and a first telescopic cylinder is fixed on one side of the side plate.

[0007] Preferably, the locking component includes a locking frame fixedly connected to the telescopic end of the first telescopic cylinder. The inner wall of the locking frame is fixed with an arc-shaped base frame coaxially arranged with the clamping component. The inner wall of the arc-shaped base frame is fixed with a plurality of positioning balls in a circumferential array that contact the outer wall of the clamping component.

[0008] Preferably, a second telescopic cylinder is fixed to the top of the locking frame, a U-shaped plate is fixed to the telescopic end of the second telescopic cylinder, a grinding motor is fixed to the bottom of the U-shaped plate, and the output shaft of the grinding motor is fixedly connected to the central disc.

[0009] Preferably, two symmetrically arranged L-shaped guide plates are fixed to the top of the processing table, and rolling grooves are opened on both opposite outer sides of the processing table; the clamping component includes two symmetrically arranged L-shaped slide plates, a baffle is fixed to the top of each of the two L-shaped slide plates, and several movable rollers that slide and engage with the L-shaped guide plates are fixed to one side of each of the two baffle plates. Several ball joint seats are fixed to one inner side of each of the two L-shaped slide plates below the several movable rollers, and rolling balls that are adapted to the rolling grooves are spherically hinged inside each of the several ball joint seats.

[0010] Preferably, a positioning cylinder with open ends is fixed between the two L-shaped sliding plates. A cross-shaped base plate is fixed inside the positioning cylinder. A placement groove is opened through the center of the top of the cross-shaped base plate. Several fan-shaped bottom rings are fixed inside the placement groove. Several straight grooves connected to the placement groove are opened through the top of the cross-shaped base plate. Sliding rails are slidably fitted inside each of the straight grooves.

[0011] Preferably, each of the sliding rails has two symmetrically arranged inclined plates fixed at its top inside the positioning cylinder, and a positioning roller is fixed at the bottom of each of the two inclined plates. A flexible pad is fixed on the circumferential side of the positioning roller.

[0012] Preferably, the bottom of the cross base plate is rotatably provided with an annular track coaxially arranged with the positioning cylinder, and a rotating ring coaxially arranged with the positioning cylinder is fixed on the inner wall of the annular track. Several oblique grooves are opened through the bottom of the rotating ring. An annular gear is fixed on the outer wall of the annular track and is located below the positioning cylinder. Several sliding rails are each fixed with a sliding rod that slides in cooperation with several oblique grooves. A vertical plate is fixed on one outer side of one of the L-shaped sliding plates, and a vertical groove is opened through one side of the vertical plate.

[0013] Preferably, an L-shaped extension plate is fixed to one outer side of the processing table, a support plate is fixed to the bottom of the L-shaped extension plate, a drive motor is fixed to one side of the support plate, a rotating arm is fixed to the output shaft of the drive motor, and a sliding rod that is slidably engaged in the vertical groove is rotatably connected to one side of the rotating arm via a pin; an F-shaped transverse plate is fixed to the top of the processing table, and a rack that meshes with a ring gear is fixed to the inner wall of the F-shaped transverse plate.

[0014] The advantages of this invention are: 1. Through the cooperation of the conical cover, adjusting nut, second spring and first spring in the inner surface grinding part, the operator only needs to rotate the adjusting nut to change the radial extension of the two irregular frames, thereby quickly adjusting the working diameter of the inner surface grinding roller, adapting to the inner surface grinding of bearing rings of different specifications, reducing downtime for changing shapes and improving processing flexibility.

[0015] This invention uses a first spring to continuously provide tension to the irregular frame, so that the inner surface grinding roller always fits tightly against the inner surface of the bearing ring during the rotation grinding process. This, together with the limiting guide rod, ensures linear movement without swaying, and uniform grinding, realizing one-time clamping and composite processing of the inner surface.

[0016] This invention utilizes the fact that when the clamping component moves towards the grinding station, the rotating ring is driven to rotate through the meshing of the rack and ring gear, which causes the inclined groove to force the sliding rod and sliding rail to move radially. Multiple positioning rollers simultaneously press the outer wall of the bearing ring in a concentric manner, automatically completing the concentric clamping and ensuring that the workpiece axis coincides with the grinding axis, thus avoiding manual clamping errors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a bearing ring inner surface grinding device for bearing processing and manufacturing according to the present invention.

[0018] Figure 2 This is a schematic diagram of the positioning mechanism of the present invention.

[0019] Figure 3 This is a schematic diagram of the grinding mechanism of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the processed part of the present invention.

[0021] Figure 5 This is a front view of the machined part of the present invention.

[0022] Figure 6 This is a top-view structural diagram of the clamping component of the present invention.

[0023] Figure 7 This is a schematic diagram of the clamping component of the present invention from an upward angle.

[0024] Figure 8 This is a schematic diagram of the locking component of the present invention.

[0025] Figure 9 This is a schematic diagram of the inner surface grinding component of the present invention from an upward angle.

[0026] Figure 10 For the present invention Figure 9 A magnified structural diagram of point A in the middle.

[0027] Figure 11 This is a top-view structural diagram of the inner surface grinding component of the present invention.

[0028] Figure 12 This is a front view of the cross-sectional structure of the inner surface grinding component of the present invention.

[0029] In the diagram: 1. Positioning mechanism; 2. Grinding mechanism; 3. Workpiece; 4. Clamping component; 5. Locking component; 6. Inner surface grinding component; 301. Processing table; 302. Side plate; 303. First telescopic cylinder; 304. L-shaped guide plate; 305. Rolling groove; 306. L-shaped extension plate; 307. Support plate; 308. Drive motor; 309. Rotary arm; 310. Slide rod; 311. F-shaped transverse plate; 312. Rack; 401. L-shaped sliding plate; 402. Baffle; 403. Moving roller; 404. Ball joint seat; 405. Rolling ball; 406. Positioning cylinder; 407. Cross base plate; 408. Placement groove; 409. Fan-shaped bottom ring; 410. Straight groove; 411. Sliding rail; 412. Inclined plate; 413. Positioning roller; 414. Circular track; 415. Ring gear; 416. Vertical plate; 417. Vertical groove; 418. Rotating ring; 419. Inclined groove; 420. Sliding rod; 501. Locking frame; 502. Arc-shaped base frame; 503. Positioning ball; 504. Second telescopic cylinder; 505. U-shaped plate; 506. Grinding motor; 601. Central disc; 602. Guide groove; 603. Irregular frame; 604. Top plate; 605. Inner surface grinding roller; 606. First spring; 607. Threaded guide post; 608. Conical cover; 609. Extension rod; 610. Sliding ball; 611. Second spring; 612. Adjusting nut; 613. Limiting guide rod. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0033] Example 1, please refer to Figures 1-12The present invention provides the following technical solution: a positioning mechanism 1 and a grinding mechanism 2 are included. The positioning mechanism 1 includes a workpiece 3 and a clamping member 4 reciprocatingly disposed on the workpiece 3. The grinding mechanism 2 includes a locking member 5 slidably disposed on the workpiece 3 and an inner surface grinding member 6 rotatably fitted inside the locking member 5. The inner surface grinding member 6 includes a central disc 601, with two symmetrical guide grooves 602 penetrating through the top of the central disc 601. A shaped frame 603 is slidably fitted inside each of the two guide grooves 602. A top plate 604 is fixed to the bottom of the shaped frame 603. An inner surface grinding roller 605 is fixed at the bottom, and a first spring 606 is fixed on the inner wall of each of the two guide grooves 602. One end of each of the two first springs 606 is fixedly connected to one side of each of the two irregular frames 603. Two symmetrically arranged threaded guide posts 607 are fixed at the top of the central disc 601. A conical cover 608 is slidably fitted between the two threaded guide posts 607. An extension rod 609 is fixed on the side of each of the two irregular frames 603 inside the conical cover 608. A sliding ball 610 is fixed at the end of each of the two extension rods 609, which slides against the inner surface of the conical cover 608.

[0034] Furthermore, two second springs 611 are fixed between the conical cover 608 and the central disk 601, respectively sleeved on two threaded guide posts 607. The two threaded guide posts 607 are threaded with adjusting nuts 612 on their peripheral sides at the top of the conical cover 608. The inner wall of the guide groove 602 is fixed with limiting guide rods 613 that slide through and are slidably engaged with the two irregular frames 603. Two first springs 606 are respectively sleeved on the two limiting guide rods 613. The processing part 3 includes a processing table 301. A side plate 302 is fixed on one side of the processing table 301. A first telescopic cylinder 303 is fixed on one side of the side plate 302. The specific application of this embodiment is as follows: First, the operator places the bearing ring to be processed in the clamping member 4 of the positioning mechanism 1, and uses the clamping member 4 to center and clamp the bearing ring. After the centering and clamping of the bearing ring is completed, the first telescopic cylinder 303 is started. Its telescopic end pushes the locking member 5 to move towards the clamping member 4, so that the axis of the inner surface grinding member 6 coincides with the axis of the bearing ring. Then, the second telescopic cylinder 504 extends, driving the U-shaped plate 505 and the grinding motor 506 to move downward, so that the inner surface grinding member 6 moves downward as a whole to directly above the bearing ring. At this time, the bearing ring axial direction after clamping and positioning is aligned with the rotation axis of the inner surface grinding member 6. After entering the bearing ring, the working diameter adjustment process of the inner surface grinding part 6 is as follows: The operator rotates the adjusting nut 612 on the threaded guide post 607 according to the inner diameter of the bearing ring; specifically, the two adjusting nuts 612 are integrally machined with synchronous external gear rings on their circumferential sides, and the two synchronous external gear rings are horizontally meshed with a transmission gear set rotatably connected to the top of the central disk 601; during the rotation of one of the adjusting nuts 612, the other adjusting nut 612 is driven to move in the same speed and direction through the meshing transmission of the transmission gear set, thereby ensuring that the conical cover 608 always remains horizontal when it moves up and down along the axial direction of the double threaded guide post 607, avoiding unilateral deviation and jamming during the lifting and lowering process; when the adjusting nut 612 is screwed down, because the inner surface structure of the conical cover 608 is gradually from top to bottom The gradually expanding inner conical surface compresses the conical cover 608, causing it to move vertically downwards along the threaded guide post 607. During this vertical downward movement, the expanding inner conical surface of the conical cover 608 begins to rigidly press down on the two sliding balls 610. At this time, due to the inclined guiding effect of the inner conical surface of the conical cover 608, the two sliding balls 610 are forced to move inwards through the extension rod 609, driving the corresponding irregular frame 603 to move closer inwards within the guide groove 602. In this process, the first spring 606, which acts as a return spring, is compressed. As the two irregular frames 603 move inwards synchronously, the top plate 604 at its bottom and the inner surface grinding roller 605 move inwards synchronously until the outer periphery of the inner surface grinding roller 605 rigidly adheres to the inner surface of the bearing ring to be processed. During this process, to ensure the stability of the grinding accuracy, the half-cone angle of the inner conical surface of the conical cover 608 is set to... and limit it to This allows the taper to not only provide extremely high radial fine-tuning resolution, but also to generate mechanical self-locking when adjustment stops, preventing the radial reverse impact force during the grinding process from causing the adjusting nut 612 to skip teeth or loosen; conversely, when the adjusting nut 612 is screwed upward, the elastic recoil force stored in the first spring 606 pushes the two irregular frames 603 to translate and expand and reset along the two limit guide rods 613 towards the axis, thereby achieving stable adjustment of the radial working diameter of the grinding roller; After adjustment, the second telescopic cylinder 504 extends, driving the U-shaped plate 505 and the grinding motor 506 to move downwards, so that the inner surface grinding part 6 moves downwards as a whole into the bearing ring, so that the inner surface grinding roller 605 is always in contact with the bearing ring. Then the grinding motor 506 is started, and the grinding motor 506 drives the central disc 601 to rotate, which in turn drives the two inner surface grinding rollers 605 to rotate synchronously. While the two inner surface grinding rollers 605 rotate synchronously and grind, their first spring 606 provides continuous tension force, so that the inner surface grinding rollers 605 are always in contact with the inner surface, ensuring the uniformity of grinding. After grinding is completed, the second telescopic cylinder 504 retracts, removing the inner surface grinding part 6 from the bearing ring. At the same time, the first telescopic cylinder 303 retracts, separating the locking part 5 from the clamping part 4. Then, through the reverse movement of the clamping part 4 along the workpiece 3, the ground bearing ring is sent out. The operator removes the workpiece and begins the next cycle. In this way, through the cooperation of the adjusting nut 612 and the conical cover 608, it is possible to quickly adapt to bearing rings with different inner diameters without changing the grinding head, thus realizing a continuous grinding process for the inner surface of the bearing ring.

[0035] Example 2, please refer to Figures 1-12This second embodiment is an improvement on the first embodiment as follows: Specifically, the locking component 5 includes a locking frame 501 fixedly connected to the telescopic end of the first telescopic cylinder 303. An arc-shaped base frame 502, coaxially arranged with the clamping component 4, is fixed to the inner wall of the locking frame 501. A plurality of positioning balls 503, in a circumferential array, are fixed to the inner wall of the arc-shaped base frame 502, contacting the outer wall of the clamping component 4. A second telescopic cylinder 504 is fixed to the top outer surface of the locking frame 501. A U-shaped plate 505 is fixed to the telescopic end of the second telescopic cylinder 504. A grinding motor 506 is fixed to the bottom inner surface of the U-shaped plate 505. The output shaft of the grinding motor 506 is fixedly connected to the central disc 601. Two symmetrically arranged L-shaped guide plates 304 are fixed to the top outer surface of the processing table 301, and the processing table 301 is relatively... The outer surfaces are all provided with rolling grooves 305; the clamping component 4 includes two symmetrically arranged L-shaped sliding plates 401, each with a baffle 402 fixed to its top, and several movable rollers 403 slidably fitted inside the L-shaped guide plate 304 fixed to one side of each baffle 402. Several ball joint seats 404 are fixed to one inner side of each L-shaped sliding plate 401 below the several movable rollers 403, and each ball joint seat 404 has a rolling ball 405 that is adapted to the rolling groove 305 in a ball joint fit with it. A positioning cylinder 406 with open ends is fixed between the two L-shaped sliding plates 401, and a cross base plate 407 is fixed inside the positioning cylinder 406. A placement groove 405 is provided through the center of the top of the cross base plate 407. 8. Several fan-shaped bottom rings 409 are fixed inside the placement groove 408. Several straight grooves 410 communicating with the placement groove 408 are opened through the top of the cross base plate 407. Sliding rails 411 are slidably fitted inside the straight grooves 410. Two symmetrically arranged inclined plates 412 are fixed at the top of the sliding rails 411 inside the positioning cylinder 406. Positioning rollers 413 are fixed at the bottom of the two inclined plates 412. Flexible pads are fixed on the periphery of the positioning rollers 413. An annular track 414 is rotatably arranged at the bottom of the cross base plate 407 and is coaxial with the positioning cylinder 406. A rotating ring 418 coaxial with the positioning cylinder 406 is fixed on the inner wall of the annular track 414. Several inclined grooves are opened through the bottom of the rotating ring 418. 419, a ring gear 415 is fixed on the outer wall of the annular track 414, and the ring gear 415 is located below the positioning cylinder 406; a number of sliding rails 411 are each fixed with a sliding rod 420 that slides and engages with a number of inclined grooves 419 respectively; a vertical plate 416 is fixed on one outer side of one L-shaped slide plate 401, and a vertical groove 417 is opened through one side of the vertical plate 416; an L-shaped extension plate 306 is fixed on one outer side of the processing table 301, a support plate 307 is fixed at the bottom of the L-shaped extension plate 306, a drive motor 308 is fixed on one side of the support plate 307, a rotating arm 309 is fixed on the output shaft of the drive motor 308, and a sliding rod 310 that slides and engages inside the vertical groove 417 is rotatably connected to one side of the rotating arm 309 via a pin.An F-shaped transverse plate 311 is fixed to the top of the processing table 301, and a rack 312 that meshes with the ring gear 415 is fixed to the inner wall of the F-shaped transverse plate 311.

[0036] The specific application of this embodiment 2 is as follows: First, the operator places the bearing ring to be processed inside the positioning cylinder 406 of the clamping part 4, and makes the lower end face of the bearing ring sit on the fan-shaped bottom ring 409 on the top of the cross base plate 407; at this time, the bearing ring is in the initial positioning state and has not yet been clamped. Subsequently, the drive motor 308 is started, and the output shaft of the drive motor 308 drives the rotating arm 309 to rotate, so that the slide rod 310 connected by the pin on one side of the rotating arm 309 begins to slide inside the vertical groove 417 that is opened through one side of the vertical plate 416. In this way, the rotational motion of the rotating arm 309 is converted into the horizontal reciprocating motion of the vertical plate 416, thereby driving the entire clamping part 4 to move back and forth along the horizontal direction of the processing table 301 towards or away from the grinding station on the top of the processing table 301. During the movement of the clamping member 4 towards the grinding station, the rack 312 on the inner wall of the F-shaped transverse plate 311 fixed to the top of the processing table 301 maintains meshing with the ring gear 415 on the outer wall of the annular track 414. The linear movement of the clamping member 4 forces the ring gear 415 to rotate, thereby driving the coaxially arranged annular track 414 and rotating ring 418 to rotate together. This causes the several inclined grooves 419 at the bottom of the rotating ring 418 to rotate accordingly. The sliding rod 420 slidingly engaged in each inclined groove 419 is subjected to the inclined groove. The constraint of 419 causes the rotating ring 418 to rotate radially along the straight groove 410 on the cross base plate 407. This causes the sliding rail 411 and the inclined plate 412 fixed thereon to move radially inward synchronously via the sliding rod 420. The positioning roller 413 at the bottom of the inclined plate 412 gradually approaches and presses against the outer wall of the bearing ring. Since the multiple positioning rollers 413 are arranged in a circumferential array and the flexible pads are fixed on the circumferential side of the positioning rollers 413, the bearing ring can be automatically aligned and clamped, ensuring that the axis of the bearing ring coincides with the axis of the positioning cylinder 406. When the clamping member 4 moves to the preset grinding position, the drive motor 308 stops and locks. At this time, the rotation process of the annular track 414 and the rotating ring 418, which are coaxial with the ring gear 415, stops. Then, in accordance with the method described in Embodiment 1, the first telescopic cylinder 303 is activated to push the arc-shaped base 502 of the locking member 5 and the positioning ball 503 on it to contact the outer wall of the positioning cylinder 406, thereby achieving radial locking of the clamping member 4. This ensures that the bearing ring is firmly clamped, and the axial direction of the clamped and fixed bearing ring coincides with the rotation axis of the inner surface grinding member 6. When the axial direction of the clamped and fixed bearing ring coincides with the rotation axis of the inner surface grinding member 6, the second telescopic cylinder 504 is activated to extend, so that the inner surface grinding member 6 enters the bearing ring. The radial extension of the inner surface grinding roller 605 is adjusted by adjusting the nut 612 and the conical cover 608 to make it fit the inner surface of the bearing ring, and finally the grinding motor 506 is activated to perform inner surface grinding. After grinding, the second telescopic cylinder 504 retracts and exits the inner surface grinding part 6, and the first telescopic cylinder 303 retracts and releases its lock. Then, the drive motor 308 starts and continues to rotate in the opposite direction, driving the clamping part 4 to move in the opposite direction. During the reverse movement of the clamping part 4, the rack 312 drives the ring gear 415 to reverse, and the inclined groove 419 drives the sliding rod 420 to move radially outward. The positioning roller 413 releases the bearing ring. After the clamping part 4 moves to the initial loading and unloading position, the drive motor 308 stops. The operator takes out the ground bearing ring and puts in the next bearing ring to be processed. The above cycle can be repeated. In this way, the automatic feeding, automatic centering clamping and automatic release of the bearing ring are realized through the above process, without the need for manual clamping, which further improves the processing efficiency and automation level, thus ensuring the consistency of bearing ring positioning in multiple processing.

[0037] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0041] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A bearing ring inner surface grinding device for bearing processing and manufacturing, comprising a positioning mechanism (1) and a grinding mechanism (2), characterized in that: The positioning mechanism (1) includes a workpiece (3) and a clamping member (4) reciprocating on the workpiece (3). The grinding mechanism (2) includes a locking member (5) slidably disposed on the workpiece (3) and an inner surface grinding member (6) rotatably fitted inside the locking member (5). The inner surface polishing component (6) includes a central disc (601), with two symmetrical guide grooves (602) extending through the top of the central disc (601). A shaped frame (603) is slidably fitted inside each of the two guide grooves (602). A top plate (604) is fixed to the bottom of the shaped frame (603), and an inner surface polishing roller (605) is fixed to the bottom of the top plate (604). A first spring (606) is fixed to the inner wall of each of the two guide grooves (602), and one end of each of the two first springs (606) is fixedly connected to one side of each of the two shaped frames (603). Two symmetrically arranged threaded guide pins (607) are fixed on the top of the central disk (601). A conical cover (608) is slidably fitted between the two threaded guide pins (607). An extension rod (609) is fixed on the side of the two irregular frame (603) inside the conical cover (608). A sliding ball (610) is fixed at the end of each of the two extension rods (609) and slides against the inner surface of the conical cover (608).

2. The bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 1, characterized in that: Two second springs (611) are fixed between the conical cover (608) and the central disk (601), respectively sleeved on two threaded guide posts (607). The two threaded guide posts (607) are threaded with adjusting nuts (612) on their peripheral sides at the top of the conical cover (608). The inner wall of the guide groove (602) is fixed with limiting guide rods (613) that slide through and engage with two irregular frames (603). The two first springs (606) are respectively sleeved on the two limiting guide rods (613). The processing part (3) includes a processing table (301), a side plate (302) is fixed on one side of the processing table (301), and a first telescopic cylinder (303) is fixed on one side of the side plate (302).

3. The bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 2, characterized in that: The locking component (5) includes a locking frame (501) fixedly connected to the telescopic end of the first telescopic cylinder (303). The inner wall of the locking frame (501) is fixed with an arc-shaped base frame (502) coaxially arranged with the clamping component (4). The inner wall of the arc-shaped base frame (502) is fixed with a number of positioning balls (503) that are in contact with the outer wall of the clamping component (4) in a circular array.

4. The bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 3, characterized in that: The locking frame (501) is fixed with a second telescopic cylinder (504) at its top outer side. The telescopic end of the second telescopic cylinder (504) is fixed with a U-shaped plate (505). The bottom inner side of the U-shaped plate (505) is fixed with a grinding motor (506). The output shaft of the grinding motor (506) is fixedly connected to the central disc (601).

5. The bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 2, characterized in that: The processing table (301) has two symmetrically arranged L-shaped guide plates (304) fixed on its outer top, and the processing table (301) has rolling grooves (305) on both of its outer sides. The clamping member (4) includes two symmetrically arranged L-shaped slide plates (401). A baffle (402) is fixed to the top of each of the two L-shaped slide plates (401). Several movable rollers (403) that slide and fit inside the L-shaped guide plate (304) are fixed to one side of each of the two baffles (402). Several ball joint seats (404) are fixed to one inner side of each of the two L-shaped slide plates (401) below the several movable rollers (403). A rolling ball (405) that is adapted to the rolling groove (305) is ball-jointed inside each of the several ball joint seats (404).

6. The bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 5, characterized in that: A positioning cylinder (406) with open ends is fixed between the two L-shaped sliding plates (401). A cross-shaped base plate (407) is fixed inside the positioning cylinder (406). A placement groove (408) is opened through the center of the top of the cross-shaped base plate (407). Several fan-shaped bottom rings (409) are fixed inside the placement groove (408). Several straight grooves (410) connected to the placement groove (408) are opened through the top of the cross-shaped base plate (407). Sliding rails (411) are slidably fitted inside the several straight grooves (410).

7. A bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 6, characterized in that: Each of the sliding rails (411) has two symmetrically arranged inclined plates (412) fixed at the top inside the positioning cylinder (406), and a positioning roller (413) is fixed at the bottom of each of the two inclined plates (412). A flexible pad is fixed on the periphery of the positioning roller (413).

8. The bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 7, characterized in that: The bottom of the cross base plate (407) is rotatably provided with an annular track (414) coaxially arranged with the positioning cylinder (406). The inner wall of the annular track (414) is fixed with a rotating ring (418) coaxially arranged with the positioning cylinder (406). The bottom of the rotating ring (418) is provided with several oblique grooves (419). The outer wall of the annular track (414) is fixed with a ring gear (415), and the ring gear (415) is located below the positioning cylinder (406). Each of the sliding rails (411) has a sliding rod (420) fixed at its bottom, which is slidably engaged with a plurality of inclined grooves (419). One of the L-shaped slide plates (401) has a vertical plate (416) fixed on one outer side, and a vertical groove (417) is provided through one side of the vertical plate (416).

9. A bearing ring inner surface grinding device for bearing processing and manufacturing according to claim 8, characterized in that: An L-shaped extension plate (306) is fixed to one outer side of the processing table (301). A support plate (307) is fixed to the bottom of the L-shaped extension plate (306). A drive motor (308) is fixed to one side of the support plate (307). A rotating arm (309) is fixed to the output shaft of the drive motor (308). A sliding rod (310) that is slidably fitted inside the vertical groove (417) is rotatably connected to one side of the rotating arm (309) via a pin. An F-shaped transverse plate (311) is fixed to the top of the processing table (301), and a rack (312) that meshes with a ring gear (415) is fixed to the inner wall of the F-shaped transverse plate (311).

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