Drilling machining device for thin-wall bearing ring

The drilling device, which is coordinated with the support frame and the rotary drive group, solves the problems of inaccurate positioning and deformation during the drilling of thin-walled bearing rings, realizes efficient and accurate multi-angle drilling processing, reduces the scrap rate and improves the versatility of the device.

CN223476356UActive Publication Date: 2025-10-28LUOYANG BOBI PRECISION BEARING CO LTD
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Patent Information

Application Number
CN202422918671.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-28
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

The existing thin-walled bearing ring drilling process suffers from problems such as frequent repositioning, large human error, inconsistent positioning, and workpiece deformation and damage, especially when multiple holes are evenly distributed on the circumference.

Method used

The design of the support frame, work table, punching assembly and ring storage seat is adopted, combined with the meshing transmission system of the rotary drive group and the gear plate. Through the precise adjustment of the inner ring support seat, multi-angle drilling is achieved and the displacement and deformation of the workpiece are avoided. The precise feed of the drilling part is controlled by the telescopic cylinder.

Benefits of technology

It improves processing speed and accuracy, reduces scrap rate, enhances the versatility and processing flexibility of the device, and ensures the consistency of drilling and stability of workpieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a thin-wall bearing ring drilling device which comprises a supporting frame, a working table is arranged at the upper end of the supporting frame, a punching assembly and a ring storage base are arranged on the upper surface of the working table, and the punching assembly is arranged around the ring storage base. The ferrule storage base is connected with the output end of a rotary driving set arranged on the lower surface of the working table top, the punching assembly is arranged around the ferrule storage base, so that drilling can be conducted from multiple angles under the condition that a workpiece is not moved, and the repositioning time is greatly shortened; through cooperation of the rotary driving set and the bearing set driving piece, automatic adjustment of the position of a workpiece is achieved, and the overall machining speed is increased; the positions of the inner ring supporting seat and the drilling part can be accurately set through a meshing transmission system of the gear disc and the driving gear and accurate control of the telescopic air cylinder, and therefore the drilling precision is guaranteed.
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Description

Technical Field

[0001] This application relates to the field of bearing inner ring machining technology, specifically a drilling apparatus for thin-walled bearing rings. Background Technology

[0002] In modern manufacturing, the machining of thin-walled bearing rings is a crucial step, especially in fields such as precision machinery, the automotive industry, and aerospace. Thin-walled bearing rings typically require precise drilling to meet specific functional requirements. Traditional drilling methods necessitate frequent workpiece repositioning, which is not only time-consuming but also prone to introducing human error; it's difficult to guarantee the consistency and accuracy of each drilled hole position, especially when multiple holes need to be evenly distributed around the circumference; and due to insecure clamping, workpiece deformation or damage can easily occur, increasing the scrap rate. Summary of the Invention

[0003] The technical problem to be solved by this application is to overcome the existing defects and provide a drilling device for thin-walled bearing rings, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: a drilling device for thin-walled bearing rings, comprising a support frame, a worktable at the upper end of the support frame, a drilling assembly and a ring holder on the upper surface of the worktable, the drilling assembly surrounding the ring holder, the ring holder being connected to the output end of a rotary drive assembly disposed on the lower surface of the worktable, the ring holder comprising a bearing plate, a gear disk, a drive gear, a bearing assembly drive component, and an inner ring support seat, the bearing plate being provided with a sliding guide groove for adjusting the inner ring support seat, the gear disk being provided on the bearing plate for driving the position of the inner ring support seat, the gear disk meshing with the drive gear, and the output end of the bearing assembly drive component being connected to the drive gear.

[0005] As a preferred technical solution of this application, the gear disk is provided with an arc-shaped groove, and a connecting pin is sleeved in the arc-shaped groove. The connecting pin is connected to the bracket guide plate in the inner ring support seat.

[0006] As a preferred technical solution of this application, the inner ring support seat includes a support guide plate and an outer support ring. The outer support ring is provided at the end of the support guide plate, and the support guide plate is slidably disposed in the sliding guide groove in the bearing plate.

[0007] As a preferred technical solution of this application, the upper end of the ring holder is provided with an upper pressure seat.

[0008] As a preferred technical solution of this application, the drilling assembly includes a support pad, a telescopic cylinder, and a drilling component. A telescopic cylinder is provided on one side of the end of the support pad, and the output end of the telescopic cylinder is connected to the drilling component.

[0009] As a preferred technical solution of this application, the drilling component includes a drilling drive component and a mounting sleeve, wherein the mounting sleeve is sleeved with the drilling drive component.

[0010] As a preferred technical solution of this application, the upper end of the support pad is provided with a guide groove, the guide groove is slidably connected with the mounting sleeve, and the lower end of the mounting sleeve passes through the support pad and is connected to a telescopic cylinder provided on one side of the support pad.

[0011] As a preferred technical solution of this application, the lower surface of the support frame is provided with a movable component.

[0012] Compared with existing technologies: the drilling assembly in this application is arranged around the bearing ring holder, allowing drilling from multiple angles without moving the workpiece, greatly reducing repositioning time; the cooperation of the rotary drive group and the load-bearing group drive components enables automatic adjustment of the workpiece position, improving the overall processing speed; the meshing transmission system of the gear disk and the drive gear, as well as the precise control of the telescopic cylinder, ensures that the positions of the inner ring clamping seat and the drilling component can be accurately set, thereby guaranteeing drilling accuracy; the design of the inner ring clamping seat can firmly fix the thin-walled bearing ring, preventing displacement or deformation during drilling, thereby reducing scrap caused by improper clamping; the inner ring clamping seat can adapt to thin-walled bearing rings of different sizes by rotating the gear disk, enhancing the versatility of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this application;

[0014] Figure 2 This is the main structural view of this application;

[0015] Figure 3 This is a partial structural diagram of this application;

[0016] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1 connecting pin, 2 bracket guide plate, 3 upper pressure seat, 4 worktable, 5 outer support ring, 6 drilling drive component, 7 support frame, 8 support pad, 9 drive gear, 10 moving component, 11 gear disk, 12 load-bearing group drive component, 13 telescopic cylinder, 14 mounting sleeve, 15 rotary drive group, 16 load-bearing plate. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0019] Please see Figure 1-4 This application provides a technical solution: a drilling device for thin-walled bearing rings, including a support frame 7, a worktable 4 at the upper end of the support frame 7, a drilling component and a ring holder on the upper surface of the worktable 4, and the drilling component surrounding the ring holder.

[0020] The support frame 7 forms the foundation of the entire processing unit, bearing the weight of all upper components. This ensures the overall stability and durability of the structure, providing a stable working platform for operation.

[0021] Worktable 4 is the part that directly supports the drilling components and the ring holder; it must not only ensure sufficient rigidity to resist the forces generated during processing, but also facilitate the installation and adjustment of various components. Worktable 4 typically has a flat surface and high hardness to adapt to different types of processing needs, and is easy to clean and maintain.

[0022] The drilling assembly is arranged around the bearing ring holder, which allows for convenient drilling of thin-walled bearing rings from multiple angles; by precisely controlling the position and movement of each drilling unit, the predetermined drilling task can be completed efficiently; the annular layout increases the flexibility of processing, allowing multiple different drilling operations to be performed simultaneously or sequentially, thereby improving production efficiency.

[0023] The bearing ring holder is specifically designed for placing thin-walled bearing rings to be processed. It provides stable support and is equipped with an adjustment mechanism that allows for fine-tuning according to the specific ring size, ensuring that the rings maintain optimal positioning during drilling.

[0024] The ring holder is connected to the output end of the rotary drive assembly 15 located on the lower surface of the worktable 4.

[0025] The rotary drive assembly 15 is located on the lower surface of the worktable 4, providing power to rotate the bearing ring holder around its axis; this meets the machining requirements for multi-angle drilling of thin-walled bearing rings. It ensures precision and consistency during machining, especially when multiple holes need to be evenly distributed around the circumference.

[0026] The ring holder includes a support plate 16, a gear disk 11, a drive gear 9, a support group drive component 12, and an inner ring support seat. The support plate 16 is provided with a sliding guide groove for adjusting the inner ring support seat. The support plate 16 is provided with a gear disk 11, which is used to drive the position of the inner ring support seat. The gear disk 11 meshes with the drive gear 9. The output end of the support group drive component 12 is connected to the drive gear 9.

[0027] The support plate 16 provides support and also integrates a sliding guide groove for adjusting the position of the inner ring tensioner.

[0028] The gear disk 11 meshes with the drive gear 9, and this mechanical transmission method drives the inner ring support seat to move along the sliding guide groove. The gear disk 11 adjusts the position of the inner ring support seat by precisely controlling its rotation angle, thereby accommodating thin-walled bearing rings of different sizes.

[0029] The drive gear 9 meshes directly with the gear disk 11 and is responsible for transmitting power from the load-bearing drive component 12 to the gear disk 11. By changing the speed or direction of the drive gear 9, precise control can be achieved over the gear disk 11 and ultimately over the position of the inner ring support seat.

[0030] The load-bearing group drive component 12 is connected to the drive gear 9. By controlling the working state of the load-bearing group drive component 12, the operation of the entire ring holder system can be realized.

[0031] The inner ring support securely and firmly holds the thin-walled bearing ring to be processed, and can be quickly adjusted in size according to actual needs to adapt to various product specifications.

[0032] Furthermore, the gear disk 11 is provided with an arc-shaped groove, and a connecting pin 1 is sleeved in the arc-shaped groove. The connecting pin 1 is connected to the bracket guide plate 2 in the inner ring support seat.

[0033] When the gear disk 11 rotates, the inner ring support seat can move along a fixed arc trajectory. This ensures that the inner ring support seat always moves smoothly along the predetermined path during adjustment, thereby guaranteeing the accuracy and stability of workpiece positioning.

[0034] When the gear disk 11 rotates, the connecting pin 1 in the arc-shaped groove moves along the arc-shaped groove as the gear disk 11 rotates, thereby driving the bracket guide plate 2 connected to it to make corresponding displacement. This structure allows the inner ring support seat to be adjusted outward or inward as needed to accommodate thin-walled bearing rings of different sizes.

[0035] Furthermore, the inner ring support seat includes a support guide plate 2 and an outer support ring 5. The support guide plate 2 is provided with an outer support ring 5 at its end, and the support guide plate 2 is slidably disposed in a sliding guide groove in the bearing plate 16.

[0036] Furthermore, an upper pressure seat 3 is provided at the upper end of the ring holder.

[0037] Furthermore, the drilling assembly includes a support pad 8, a telescopic cylinder 13, and a drilling component. The telescopic cylinder 13 is provided on one side of the end of the support pad 8, and the output end of the telescopic cylinder 13 is connected to the drilling component.

[0038] The support pad 8 provides a stable support platform to ensure the stability of the entire device during drilling; the support pad 8 has sufficient rigidity to withstand the forces generated during drilling, and its upper end is provided with a guide groove to guide the precise movement of the drilling part.

[0039] The telescopic cylinder 13 drives the piston rod to extend and retract by compressed air or hydraulic oil; thereby controlling the feed action of the drilling part, that is, pushing the drilling part downward to the workpiece surface and performing the drilling operation.

[0040] Furthermore, the drilling component includes a drilling drive component 6 and a mounting sleeve 14, wherein the mounting sleeve 14 is sleeved with the drilling drive component 6.

[0041] Furthermore, the upper end of the support pad 8 is provided with a guide groove, which is slidably connected to the mounting sleeve 14. The lower end of the mounting sleeve 14 passes through the support pad 8 and is connected to the telescopic cylinder 13 located on one side of the support pad 8.

[0042] Furthermore, a movable component 10 is provided on the lower surface of the support frame 7.

[0043] In use: According to the inner diameter of the bearing inner ring, the load-bearing group drive component 12 is turned on. At this time, the gear disk 11 rotates, and the connecting pin 1 in the arc groove will move along the arc groove with the rotation of the gear disk 11, thereby driving the bracket guide plate 2 connected to it to make corresponding displacement, so that the outer support ring 5 is tightly attached to the bearing inner ring, and it is tightened to prevent it from deforming during drilling. When the preset position is reached, the drilling component is started. At this time, the telescopic cylinder 13 adjusts the position of the mounting sleeve 14, thereby adjusting the position of the drilling component, thus completing the drilling process.

[0044] If drilling is required at multiple locations, the angle of the collar holder can be adjusted by rotating the drive assembly 15, and the drilling process described above can be repeated. Alternatively, drilling at different angles can be achieved by adjusting the position of the drilling assembly.

[0045] Although the embodiments of the present application have been shown and described, it will be understood 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 present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A drilling apparatus for thin-walled bearing rings, comprising a support frame (7), wherein a worktable (4) is provided at the upper end of the support frame (7), characterized in that: The upper surface of the worktable (4) is provided with a drilling assembly and a ring holder. The drilling assembly is arranged around the ring holder. The ring holder is connected to the output end of the rotary drive group (15) arranged on the lower surface of the worktable (4). The ring holder includes a support plate (16), a gear disk (11), a drive gear (9), a support group drive component (12), and an inner ring support seat. The support plate (16) is provided with a sliding guide groove for adjusting the inner ring support seat. The support plate (16) is provided with a gear disk (11). The gear disk (11) is used to drive the position of the inner ring support seat. The gear disk (11) meshes with the drive gear (9). The output end of the support group drive component (12) is connected to the drive gear (9).

2. The drilling apparatus for thin-walled bearing rings according to claim 1, characterized in that: The gear disk (11) is provided with an arc-shaped groove, and a connecting pin (1) is sleeved in the arc-shaped groove. The connecting pin (1) is connected to the bracket guide plate (2) in the inner ring support seat.

3. The drilling apparatus for thin-walled bearing rings according to claim 1, characterized in that: The inner ring support seat includes a support guide plate (2) and an outer support ring (5). The support guide plate (2) is provided with an outer support ring (5) at its end. The support guide plate (2) is slidably disposed in the sliding guide groove in the bearing plate (16).

4. The drilling apparatus for thin-walled bearing rings according to claim 1, characterized in that: The upper end of the ring holder is provided with an upper pressure seat (3).

5. The drilling apparatus for thin-walled bearing rings according to claim 1, characterized in that: The drilling assembly includes a support pad (8), a telescopic cylinder (13), and a drilling component. The telescopic cylinder (13) is provided on one side of the end of the support pad (8), and the output end of the telescopic cylinder (13) is connected to the drilling component.

6. The drilling apparatus for thin-walled bearing rings according to claim 5, characterized in that: The drilling component includes a drilling drive (6) and a mounting sleeve (14), which is sleeved with the drilling drive (6).

7. The drilling apparatus for thin-walled bearing rings according to claim 5, characterized in that: The upper end of the support pad (8) is provided with a guide groove, which is slidably connected to the mounting sleeve (14). The lower end of the mounting sleeve (14) passes through the support pad (8) and is connected to the telescopic cylinder (13) located on one side of the support pad (8).

8. The drilling apparatus for thin-walled bearing rings according to claim 1, characterized in that: The lower surface of the support frame (7) is provided with a movable component (10).