A multi-size bearing ring inner hole clamping mechanism
By using a multi-size bearing ring inner hole clamping mechanism, stable clamping of bearing rings of different diameters is achieved through clamping components and auxiliary clamping components. This solves the problems of insufficient flexibility and safety hazards of traditional clamping mechanisms, and improves production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANGSHAN CHENGCHUANG BEARING CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional bearing ring clamping mechanisms cannot be compatible with workpieces of different diameters, resulting in insufficient flexibility of the production line, uneven distribution of clamping force, and potential safety hazards.
A multi-size bearing ring inner hole clamping mechanism is adopted, including a clamping component and an auxiliary clamping component. Stable clamping is achieved through four sets of clamping plates and arc-shaped rubber pads, and secondary locking is achieved using structures such as inclined toothed bars and U-shaped bars to ensure clamping stability.
It achieves stable clamping of bearing rings within a certain size range, avoiding loosening and safety hazards, and improving production flexibility and safety.
Smart Images
Figure CN224373852U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing ring inner hole clamping technology, specifically to a multi-size bearing ring inner hole clamping mechanism. Background Technology
[0002] In the field of bearing ring machining, clamping mechanisms are indispensable equipment for achieving precise workpiece positioning and fixation. Traditional bearing ring clamping mechanisms can usually only accommodate bearing rings of a single specification and cannot be compatible with workpieces of different diameters, resulting in insufficient production line flexibility and frequent fixture changes that increase production costs and time.
[0003] To overcome the above problems, existing technologies have proposed adjustable clamping devices. For example, Chinese patent CN221716241U discloses a bearing inner ring positioning clamping device, the technical solution of which includes: a processing table, two sets of adjusting blocks (i.e., grippers) symmetrically arranged in the movable groove inside the processing table, and a lifting plate driven by a cylinder. This device uses the lifting of the cylinder to drive the lifting blocks to squeeze the adjusting blocks, so that the two sets of adjusting blocks move radially towards or away from each other under the guidance of the slide rod and the movable groove, thereby achieving the clamping and fixing of bearing inner rings of different sizes. Although this solution solves the problem of limited clamping size range, its structure still has the following technical defects;
[0004] The aforementioned existing clamping devices have the following problems:
[0005] 1. Using two sets of grippers for radial clamping results in a limited contact area between the grippers and the inner wall of the bearing ring, which can easily lead to uneven distribution of clamping force and potential loosening of the workpiece during processing.
[0006] 2. The clamping structure relies on only two grippers and lacks a secondary locking structure. When the air pressure supplied by the cylinder is unstable, the grippers may also shift, posing a certain safety hazard. Utility Model Content
[0007] To address the shortcomings of existing technologies, this utility model provides a clamping mechanism for the inner hole of multi-size bearing rings, solving the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A multi-size bearing ring inner hole clamping mechanism includes a base plate with supporting legs arranged in a circular array on the bottom surface of the base plate. A column is symmetrically and fixedly connected to the top surface of the base plate. A clamping assembly is installed in the middle of the base plate and on the top surface of the column. An auxiliary clamping assembly is installed on the surface of the clamping assembly. The clamping assembly includes a clamping disc and a clamping pneumatic rod. A clamping disc is fixedly connected to the top surface between two sets of column. The top surface of the clamping disc is provided with sliding grooves, and there are four sets of sliding grooves. An I-beam is slidably connected within the sliding groove. A clamping plate is fixedly connected to the top surface of the I-beam. An arc-shaped rubber pad is fixedly connected to one side of the clamping plate. A clamping pneumatic rod is fixedly connected to the middle of the base plate. A lifting disc is fixedly connected to the output end of the clamping pneumatic rod. A connecting rod is rotatably connected to the top surface of the lifting disc via a lug and a pin. One end of the connecting rod is rotatably connected to the bottom surface of the I-beam via a lug and a pin.
[0010] Furthermore, the auxiliary clamping assembly includes a beveled toothed bar, a U-shaped bar, an auxiliary release component, and a locking component. The beveled toothed bar is symmetrically fixedly connected to the top surface of the base plate and the bottom surface of the clamping plate. The locking component is symmetrically installed on the surface of the lifting plate. The auxiliary release component is installed on the surface of the lifting plate. The two ends of the U-shaped bar are respectively connected to the locking component.
[0011] Furthermore, the locking component includes an extension rod, which is symmetrically and fixedly connected to the surface of the lifting plate. One end of the extension rod is provided with a sliding hole, and the other end of the extension rod slides on the surface of the inclined toothed rod through the sliding hole.
[0012] Furthermore, the locking component also includes a translation rail, the bottom surface of the extension rod is fixedly connected to the translation rail, a translation block is slidably connected inside the translation rail, one end of the U-shaped rod is fixedly connected to the translation block, a reset damping rod is fixedly connected to one side of the translation rail, and one end of the reset damping rod is fixedly connected to the U-shaped rod.
[0013] Furthermore, the locking component also includes a locking tooth, which is slidably connected inside the translation block. One end of the locking tooth is engaged with the inclined tooth bar, and an avoidance damping rod is fixedly connected to the bottom surface of the locking tooth and between the bottom surface of the translation block.
[0014] Furthermore, the auxiliary release component includes an auxiliary release rod, the surface of the lifting plate is fixedly connected to the auxiliary release rod, one end of the auxiliary release rod is slidably connected to a blocking rod, and a blocking damping rod is fixedly connected to one side of the blocking rod and between the auxiliary release rods.
[0015] This invention provides a clamping mechanism for the inner bore of bearing rings of various sizes. Compared with the prior art, it has the following advantages:
[0016] 1. The clamping assembly can be used to clamp and fix bearing rings within a certain size range;
[0017] 2. The auxiliary clamping assembly enables a secondary locking after clamping the bearing ring, preventing the clamping pneumatic rod from suddenly stopping and causing the clamping assembly to fail to clamp the bearing ring.
[0018] 3. By using four sets of clamping plates and arc-shaped rubber pads, the contact surface of the bearing ring is increased while clamping it. During clamping, the arc-shaped rubber pads also increase the friction with the bearing ring, making the clamping more stable. The simultaneous clamping of four sets of clamping plates also achieves centering of the bearing ring, preventing the center of the bearing ring from deviating during clamping. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A schematic diagram of the overall structure of this utility model is shown;
[0021] Figure 2 This diagram shows another perspective view of the overall design of this utility model;
[0022] Figure 3 A top view of the present invention is shown;
[0023] Figure 4 A partial cross-sectional view of the present invention is shown;
[0024] Figure 5 This utility model is shown Figure 4 Enlarged view of region A in the middle;
[0025] Figure 6 A schematic diagram of the auxiliary clamping assembly of this utility model is shown;
[0026] As shown in the figure:
[0027] 100. Base plate;
[0028] 200. Supporting leg;
[0029] 300. Column;
[0030] 400. Clamping assembly; 401. Clamping plate; 402. Clamping pneumatic rod; 403. Sliding groove; 404. I-beam block; 405. Clamping piece; 406. Arc-shaped rubber pad; 407. Lifting plate; 408. Connecting rod;
[0031] 500. Auxiliary clamping assembly; 501. Inclined toothed bar; 502. U-shaped bar; 503. Extension bar; 504. Sliding hole; 505. Translation track; 506. Translation block; 507. Reset damping bar; 508. Clamping tooth; 509. Avoidance damping bar; 510. Auxiliary release bar; 511. Blocking bar; 512. Blocking damping bar. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] Example
[0034] To address the technical problems in the background art, the following multi-size bearing ring inner hole clamping mechanism is provided:
[0035] Combination Figures 1-6 As shown, this utility model provides a multi-size bearing ring inner hole clamping mechanism, including a base plate 100. Support legs 200 are arranged circumferentially on the bottom surface of the base plate 100. Columns 300 are symmetrically and fixedly connected to the top surface of the base plate 100. A clamping assembly 400 is installed in the middle of the base plate 100 and on the top surface of the column 300. An auxiliary clamping assembly 500 is installed on the surface of the clamping assembly 400. The clamping assembly 400 includes a clamping plate 401 and a clamping pneumatic rod 402. The clamping plate 401 is fixedly connected to the top surface between two sets of column rods 300. The top surface of the clamping plate 401 is respectively provided with… There is a sliding groove 403, and four sets of sliding grooves 403 are provided. I-beam blocks 404 are slidably connected in the sliding grooves 403. A clamping piece 405 is fixedly connected to the top surface of the I-beam blocks 404. An arc-shaped rubber pad 406 is fixedly connected to one side of the clamping piece 405. A clamping pneumatic rod 402 is fixedly connected to the middle of the base plate 100. A lifting plate 407 is fixedly connected to the output end of the clamping pneumatic rod 402. A connecting rod 408 is rotatably connected to the top surface of the lifting plate 407 through a lug and a pin. One end of the connecting rod 408 is rotatably connected to the bottom surface of the I-beam blocks 404 through a lug and a pin.
[0036] The base plate 100, support legs 200, column rod 300, and clamping assembly 400 provide a stable foundation for the clamping mechanism. The support legs stabilize the mechanism, the column rod supports the clamping plate, and the clamping pneumatic rod drives the lifting plate and connecting rod, causing the I-beam to slide within the sliding groove. This, in turn, moves the clamping plate and the arc-shaped rubber pad, achieving the clamping and fixing of the inner hole of the bearing ring within a certain size range.
[0037] In this embodiment, the auxiliary clamping assembly 500 includes a beveled toothed bar 501, a U-shaped bar 502, an auxiliary release component, and a locking component. The beveled toothed bar 501 is symmetrically fixedly connected to the top surface of the base plate 100 and the bottom surface of the clamping plate 401. The locking component is symmetrically installed on the surface of the lifting plate 407. The auxiliary release component is installed on the surface of the lifting plate 407. The two ends of the U-shaped bar 502 are respectively connected to the locking component.
[0038] By incorporating an auxiliary clamping assembly 500, including a beveled rack, a U-shaped rod, an auxiliary release component, and a locking component, in conjunction with the clamping assembly, an additional locking function is provided. The beveled rack, in conjunction with the locking component, prevents the lifting plate from descending due to gravity after the pneumatic rod clamping operation has stopped, thereby ensuring the bearing ring is stably clamped.
[0039] In this embodiment, the locking component includes an extension rod 503. The extension rod 503 is symmetrically fixedly connected to the surface of the lifting plate 407. One end of the extension rod 503 is provided with a sliding hole 504. One end of the extension rod 503 slides on the surface of the inclined toothed rod 501 through the sliding hole 504.
[0040] By setting an extension rod on the surface of the lifting plate and a sliding hole at one end of the extension rod, the extension rod can slide on the surface of the inclined gear, thereby realizing the relative movement between the locking component and the inclined gear. This provides a basic structure for the subsequent meshing of the locking teeth and the inclined gear, ensuring the realization of the locking function.
[0041] In this embodiment, the locking component also includes a translation rail 505. The bottom surface of the extension rod 503 is fixedly connected to the translation rail 505. A translation block 506 is slidably connected inside the translation rail 505. One end of the U-shaped rod 502 is fixedly connected to the translation block 506. A reset damping rod 507 is fixedly connected to one side of the translation rail 505. One end of the reset damping rod 507 is fixedly connected to the U-shaped rod 502.
[0042] By setting a translational track on the bottom surface of the extension rod, and a translational block inside the translational track, a U-shaped rod is connected to the translational block. A reset damping rod is also installed on one side of the translational track, allowing the U-shaped rod to drive the translational block to slide within the translational track, thereby controlling the engagement and disengagement of the locking teeth and the inclined plate gear. The reset damping rod allows the U-shaped rod and locking teeth to automatically reset under certain conditions, facilitating operation and enabling locking and unlocking functions.
[0043] In this embodiment, the locking component further includes a locking tooth 508. The locking tooth 508 is slidably connected inside the translation block 506. One end of the locking tooth 508 is engaged with the inclined tooth bar 501. An avoidance damping rod 509 is fixedly connected between the bottom surface of the locking tooth 508 and the bottom surface of the translation block 506.
[0044] By setting a locking tooth inside the translation block and setting an avoidance damping rod between the bottom surface of the locking tooth and the bottom surface of the translation block, the locking tooth is more stable when it meshes with the inclined plate gear, and the avoidance damping rod can move on the inclined plate gear.
[0045] In this embodiment, the auxiliary release component includes an auxiliary release rod 510. The auxiliary release rod 510 is fixedly connected to the surface of the lifting plate 407. One end of the auxiliary release rod 510 is slidably connected to a blocking rod 511. A blocking damping rod 512 is fixedly connected to one side of the blocking rod 511 and between the auxiliary release rods 510.
[0046] By using the blocking rod in the auxiliary disengagement component, the U-shaped rod is blocked, thereby separating the locking teeth from the inclined gear, making it easy to release the auxiliary clamping assembly and facilitating the subsequent replacement of the bearing ring. On the other hand, it allows the U-shaped rod to disengage, making it easier for the locking teeth and inclined gear to lock together and clamp it in the future.
[0047] Working principle and usage process of this utility model:
[0048] In use:
[0049] During clamping, first, place the bearing ring to be clamped on the top surface of the I-beam 404. After placement, start the clamping pneumatic rod 402. As the clamping pneumatic rod 402 operates, it will drive the lifting plate 407 to move upward. As the lifting plate 407 moves upward, it will cause the four sets of connecting rods 408 to change angle, and the connecting rods 408 will also move upward. As the connecting rods 408 move, they will cause the four sets of I-beams 404 to slide in the sliding groove 403. As the I-beams 404 move, they will cause the clamping plate 405 and the arc-shaped rubber pad 406 to move. As the clamping plate 405 and the arc-shaped rubber pad 406 move, the inner hole of the bearing ring can be clamped. At the same time, it will also achieve the clamping and fixing of bearing rings within a certain size range.
[0050] When clamping the bearing ring:
[0051] Since the locking tooth 508 is engaged with the inclined plate tooth 501, when the lifting plate 407 moves upward, it will also drive the U-shaped rod 502, the auxiliary release component, and the locking component to move upward when clamping the bearing ring. When the locking component moves upward, since the locking tooth 508 is engaged with the inclined plate tooth 501, the locking tooth 508 remains engaged with the inclined plate tooth 501 as the extension rod 503 moves upward. When the clamping pneumatic rod 402 stops working, the locking tooth 508 will also lock with the inclined plate tooth 501, preventing the lifting plate 407 from moving downward under the action of gravity when the clamping pneumatic rod 402 stops working, thus preventing it from being clamped.
[0052] When unlocking, first, the worker pulls the blocking rod 511, and then pulls the U-shaped rod 502, causing the U-shaped rod 502 to move the translation block 506, the locking tooth 508, and the avoidance damping rod 509. As the U-shaped rod 502 moves, one end of the U-shaped rod 502 will pass over the blocking rod 511, and at the same time, the locking tooth 508 will be pulled out from one side of the inclined tooth rod 501, so that the locking tooth 508 will no longer lock the inclined tooth rod 501. The worker can then release the blocking rod 511. The blocking rod 511 will reset under the action of the blocking damping rod 512. After resetting, the blocking rod 511 will stop the U-shaped rod 502 from the inside, preventing the U-shaped rod 502 from resetting.
[0053] The retraction of the clamping pneumatic rod 402 will cause the clamping plate 405 and the arc-shaped rubber pad 406 to no longer clamp and fix the bearing ring. The worker removes the processed bearing ring. After the pneumatic rod is retracted to the preset initial position, the worker pulls the blocking rod 511 and stretches the blocking damping rod 512, so that the blocking rod 511 no longer blocks the U-shaped rod 502. At this time, the U-shaped rod 502 will begin to reset under the action of the reset damping rod 507. As the U-shaped rod 502 resets, it will drive the translation block 506 to slide in the translation track 505. It will also cause the translation block 506 to drive the locking tooth 508 to slide towards the inclined tooth bar 501, so that the locking tooth 508 slides into the side of the inclined tooth bar 501 and forms a meshing connection with the inclined tooth bar 501.
[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A clamping mechanism for the inner bore of multi-size bearing rings, characterized in that: Includes a base plate (100), the bottom surface of which is circumferentially arrayed with supporting legs (200), the top surface of which is symmetrically and fixedly connected with a column rod (300), a clamping assembly (400) is installed in the middle of the base plate (100) and on the top surface of the column rod (300), and an auxiliary clamping assembly (500) is installed on the surface of the clamping assembly (400); The clamping assembly (400) includes a clamping plate (401) and a clamping pneumatic rod (402). The clamping plate (401) is fixedly connected to the top surface between the two sets of column rods (300). The top surface of the clamping plate (401) is provided with sliding grooves (403). There are four sets of sliding grooves (403). I-beams (404) are slidably connected in the sliding grooves (403). A clamping piece (405) is fixedly connected to the top surface of the I-beams (404). The clamping pneumatic rod (402) is fixedly connected to the middle part of the base plate (100). The output end of the clamping pneumatic rod (402) is fixedly connected to a lifting plate (407). The top surface of the lifting plate (407) is rotatably connected to a connecting rod (408) through a lug and a pin. One end of the connecting rod (408) is rotatably connected to the bottom surface of the I-beams (404) through a lug and a pin. The auxiliary clamping assembly (500) includes a beveled toothed bar (501), a U-shaped bar (502), an auxiliary release component, and a locking component. The beveled toothed bar (501) is symmetrically fixedly connected to the top surface of the base plate (100) and the bottom surface of the clamping plate (401). The locking component is symmetrically installed on the surface of the lifting plate (407). The auxiliary release component is installed on the surface of the lifting plate (407). The two ends of the U-shaped bar (502) are respectively connected to the locking component.
2. The multi-size bearing ring inner hole clamping mechanism according to claim 1, characterized in that: An arc-shaped rubber pad (406) is fixedly connected to one side of the clamping piece (405).
3. The multi-size bearing ring inner hole clamping mechanism according to claim 2, characterized in that: The locking component includes an extension rod (503). The extension rod (503) is symmetrically fixedly connected to the surface of the lifting plate (407). One end of the extension rod (503) is provided with a sliding hole (504). One end of the extension rod (503) slides on the surface of the inclined toothed rod (501) through the sliding hole (504).
4. The multi-size bearing ring inner hole clamping mechanism according to claim 3, characterized in that: The locking component also includes a translation rail (505), the bottom surface of the extension rod (503) is fixedly connected to the translation rail (505), a translation block (506) is slidably connected inside the translation rail (505), one end of the U-shaped rod (502) is fixedly connected to the translation block (506), a reset damping rod (507) is fixedly connected to one side of the translation rail (505), and one end of the reset damping rod (507) is fixedly connected to the U-shaped rod (502).
5. A multi-size bearing ring inner hole clamping mechanism according to claim 4, characterized in that: The locking component also includes a locking tooth (508), which is slidably connected inside the translation block (506). One end of the locking tooth (508) is engaged with the inclined tooth bar (501), and an avoidance damping rod (509) is fixedly connected between the bottom surface of the locking tooth (508) and the bottom surface of the translation block (506).
6. The multi-size bearing ring inner hole clamping mechanism according to claim 5, characterized in that: The auxiliary release component includes an auxiliary release rod (510), the surface of the lifting plate (407) is fixedly connected to the auxiliary release rod (510), one end of the auxiliary release rod (510) is slidably connected to a blocking rod (511), and a blocking damping rod (512) is fixedly connected to one side of the blocking rod (511) and between the auxiliary release rods (510).