Automatic drilling device for bearing outer ring

By designing a clamping and drill bit replacement mechanism, the problem of difficult drill bit replacement in existing devices has been solved, improving the accuracy of drilling the outer ring of the bearing and the stability of the equipment, ensuring the continuity and reliability of the processing.

CN224407003UActive Publication Date: 2026-06-26DALIAN HONGHONGHUOHUO PRECISION BEARING MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN HONGHONGHUOHUO PRECISION BEARING MANUFACTURING CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing automatic drilling devices for bearing outer rings lack a convenient replacement mechanism for the drilling bits, making it difficult to replace them in a timely manner after wear, which affects drilling accuracy and equipment stability, and may even cause processing failures.

Method used

An automatic drilling device for bearing outer rings was designed, including a clamping mechanism and a drill bit changing mechanism. The clamping mechanism drives the turntable and disc to rotate via a drive motor, realizing station switching and stable clamping. The drill bit changing mechanism enables quick replacement of worn drill bits through the cooperation of springs and pins.

Benefits of technology

This ensures drilling accuracy and improves equipment stability, avoiding hole position deviations and increased equipment load caused by drill bit wear, thus ensuring the continuity and reliability of processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bearing outer ring automatic drilling device field discloses a bearing outer ring automatic drilling device, including work table, the top fixed connection of work table has the support, the top fixed connection of support has the punching device, the inside slide connection of support has the sliding board, the bottom fixed connection of sliding board has the fixed ring, the inside slide connection of fixed ring has the punch drill, the inside of work table is provided with the clamping mechanism, the clamping mechanism is used for clamping bearing outer ring to the punch drill carries out processing operation, the outside of fixed ring is provided with drill bit replacement mechanism, and drill bit replacement mechanism is used for replacing the punch drill and influences work effect because of serious wear. In the utility model, the support and the sliding plate adjust the punch drill position, the clamping mechanism in the work table realizes the position conversion through the drive motor etc., and the telescopic link etc. drive the inner support plate clamping outer ring to aim at the drill bit, and the punch device drives the drill bit to complete the drilling.
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Description

Technical Field

[0001] This utility model relates to the field of automatic drilling devices for bearing outer rings, and more particularly to an automatic drilling device for bearing outer rings. Background Technology

[0002] The automatic drilling device for bearing outer rings is a specialized piece of equipment used in the bearing manufacturing industry. It can automatically drill holes at specific locations on the outer ring of a bearing according to preset process parameters. By integrating automatic control and machining functions, it achieves continuous and precise operation of the bearing outer ring drilling process. It is a key piece of equipment in the bearing production process to ensure the quality and efficiency of outer ring hole processing.

[0003] The device consists of a feeding mechanism, a positioning and clamping mechanism, a drilling execution mechanism, a control mechanism, and an auxiliary support mechanism. The feeding mechanism is responsible for orderly conveying the workpiece to the processing position. The positioning and clamping mechanism precisely fixes the outer ring to ensure accurate hole positions. The drilling execution mechanism includes a drive assembly and a drilling bit, which undertakes the cutting operation. The control system coordinates the various components through programs or signals to achieve automated processing. The auxiliary support structure provides the installation foundation and stable support for each component.

[0004] In existing devices, the drilling bit is fixedly connected to the drive assembly, lacking a convenient replacement mechanism and making timely replacement difficult. This leads to decreased drilling accuracy, resulting in problems such as hole position deviation and rough hole walls. It also increases the load on the equipment, affects the stable operation of the device, and may even cause processing failures.

[0005] Therefore, an automatic drilling device for bearing outer rings is proposed to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides an automatic drilling device for bearing outer rings, which aims to improve upon the existing technology and solve the problem that the lack of a convenient replacement mechanism for the drilling drill bit in the existing device makes it difficult to replace it in time after wear, which in turn leads to a decrease in drilling accuracy, an increase in equipment load, an impact on operational stability, and even processing failure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an automatic drilling device for bearing outer rings, comprising a worktable, a bracket fixedly connected to the top of the worktable, a drilling device fixedly connected to the top of the bracket, a sliding plate slidably connected inside the bracket, a fixing ring fixedly connected to the bottom of the sliding plate, a drilling bit slidably connected inside the fixing ring, a clamping mechanism provided inside the worktable for clamping the bearing outer ring so that the drilling bit can perform processing operations, and a drill bit replacement mechanism provided outside the fixing ring for replacing the drilling bit that is severely worn and affects the working effect;

[0008] The clamping mechanism includes a turntable rotatably connected inside the worktable. A disc is fixedly connected to the top of the turntable. A drive motor is fixedly connected inside the worktable. A housing is fixedly connected to the top of the disc. Several fixed seats are fixedly connected to the outside of the housing. A connecting rod is rotatably connected to the outside of the fixed seats. A positioning block is rotatably connected to the end of the connecting rod away from the fixed seats. An inner support plate is fixedly connected to the outside of the positioning block. A telescopic rod is fixedly connected inside the housing. A fixed block is fixedly connected to the outside of the telescopic rod.

[0009] As a further description of the above technical solution: the output end of the drive motor is fixedly connected to the inside of the turntable, and the outside of the turntable is rotatably connected to the inside of the worktable.

[0010] As a further description of the above technical solution: the connecting rod is rotatably connected to the outside of the fixed block, and the telescopic rod is slidably connected to the inside of the outer shell.

[0011] As a further description of the above technical solution: the drill bit replacement mechanism includes two housings, both of which are fixedly connected to the bottom of the sliding plate. The two housings are fixedly connected to the outside of the fixing ring on the side near the drilling drill bit. A pin is slidably connected inside the housing, a limit ring is fixedly connected to the outside of the pin, and a spring is sleeved on the outside of the pin.

[0012] As a further description of the above technical solution: the side of the spring away from the limiting ring is fixedly connected to the inside of the housing, and the other side of the spring is fixedly connected to the outside of the limiting ring.

[0013] As a further description of the above technical solution: a handle is fixedly connected to the side of the pin away from the housing.

[0014] As a further description of the above technical solution: the pin is slidably connected inside the fixed ring.

[0015] As a further description of the above technical solution: the pin is slidably connected inside the drilling bit.

[0016] This utility model has the following beneficial effects:

[0017] 1. The position of the drilling bit is adjusted by the cooperation of the bracket and the sliding plate, providing support and a basis for the drilling action; the clamping mechanism inside the worktable drives the turntable and disc to rotate through the drive motor, realizing the position conversion of the bearing outer ring. At the same time, the telescopic rod inside the outer shell extends and retracts, driving the connecting rod to rotate through the fixed block, thereby controlling the opening and closing of the inner support plate, tightening it from the inside of the bearing outer ring to stably clamp the outer ring of different sizes, ensuring that it is accurately aligned with the drilling bit, ensuring the stability of the workpiece during drilling, avoiding displacement that affects accuracy, and finally the drilling device drives the drilling bit to complete the drilling operation.

[0018] 2. The drilling device drives the drill bit to perform drilling operations; the two housings fixed to the bottom of the sliding plate and the outside of the fixing ring provide installation support for the drill bit replacement mechanism. The pin inside the housing is stably inserted into the fixing ring and the drill bit under the elastic force applied by the spring through the limiting ring to fix the drill bit. When replacement is needed, the handle at one end of the pin can be pulled out from the fixing ring and the drill bit. After the fixation is released, the drill bit can be replaced. When the handle is released, the spring pushes the pin to re-insert, completing the fixation of the new drill bit and realizing the quick replacement function. Attached Figure Description

[0019] Figure 1 This is a perspective view of an automatic drilling device for bearing outer rings proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the workbench of an automatic drilling device for bearing outer rings proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the inner support plate of the automatic drilling device for the outer ring of a bearing proposed in this utility model;

[0022] Figure 4 This is a cross-sectional view of the housing of an automatic drilling device for bearing outer rings proposed in this utility model;

[0023] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 6 This is a cross-sectional view of the housing of an automatic drilling device for bearing outer rings proposed in this utility model.

[0025] Legend:

[0026] 1. Workbench; 2. Support; 3. Sliding plate; 4. Drilling device; 5. Drill bit; 6. Housing; 7. Drive motor; 8. Inner support plate; 9. Turntable; 10. Disc; 11. Fixed base; 12. Fixed block; 13. Connecting rod; 14. Positioning block; 15. Telescopic rod; 16. Housing; 17. Fixed ring; 18. Spring; 19. Pin; 20. Limiting ring; 21. Handle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figure 2 , Figure 3 , Figure 4 This utility model provides an embodiment of an automatic drilling device for bearing outer rings, including a worktable 1, a support 2 fixedly connected to the top of the worktable 1, a drilling device 4 fixedly connected to the top of the support 2, a sliding plate 3 slidably connected inside the support 2, a fixing ring 17 fixedly connected to the bottom of the sliding plate 3, and a drilling bit 5 slidably connected inside the fixing ring 17. The worktable 1 bears the weight of the entire device, and the position adjustment of the drilling bit 5 is achieved through the cooperation of the support 2 and the sliding plate 3, providing structural support and a motion basis for the drilling action. A clamping mechanism is provided inside the worktable 1 to clamp the bearing outer ring so that the drilling bit 5 can perform processing operations. The clamping mechanism ensures the stability of the workpiece during drilling by fixing the bearing outer ring, avoiding displacement that affects accuracy. A drill bit replacement mechanism is provided outside the fixing ring 17 to replace the drilling bit 5 that is severely worn and affects the working effect. The drill bit replacement mechanism solves the problem of replacing worn drill bits and ensures continuous processing.

[0029] The clamping mechanism includes a turntable 9, which is rotatably connected inside the worktable 1. A disc 10 is fixedly connected to the top of the turntable 9. A drive motor 7 is fixedly connected inside the worktable 1. The drive motor 7 drives the turntable 9 and the disc 10 to rotate, realizing the position conversion of the bearing outer ring and improving the continuity of processing. A housing 6 is fixedly connected to the top of the disc 10. Several fixed seats 11 are fixedly connected to the outside of the housing 6. A connecting rod 13 is rotatably connected to the outside of the fixed seats 11. A positioning block 14 is rotatably connected to the end of the connecting rod 13 away from the fixed seat 11. An inner support plate 8 is fixedly connected to the outside of the positioning block 14. The rotation of the connecting rod 13 drives the positioning block 14 and the inner support plate 8 to open and close. Multiple inner support plates 8 are used to move the bearing outer ring from inside... The outer part is stretched outward to achieve stable clamping of outer rings of different sizes. A telescopic rod 15 is fixedly connected inside the outer shell 6, and a fixing block 12 is fixedly connected to the outside of the telescopic rod 15. The output end of the drive motor 7 is fixedly connected inside the turntable 9. The outside of the disc 10 is rotatably connected to the inside of the worktable 1. The connecting rod 13 is rotatably connected to the outside of the fixing block 12. The telescopic rod 15 is slidably connected inside the outer shell 6. The extension and retraction of the telescopic rod 15 drives the connecting rod 13 to rotate through the fixing block 12, thereby controlling the opening and closing range of the inner support plate 8 to achieve adaptive clamping of the bearing outer ring. At the same time, the turntable 9 and disc 10 driven by the drive motor 7 rotate to ensure that the clamped outer ring can be accurately aligned with the drilling bit 5, ensuring accurate drilling position.

[0030] Reference Figure 1 , Figure 5 , Figure 6 The drill bit replacement mechanism includes two housings 16, both of which are fixedly connected to the bottom of the sliding plate 3. The sides of the two housings 16 closest to the drilling drill bit 5 are fixedly connected to the outside of the fixing ring 17, providing mounting carriers and structural support for other components of the drill bit replacement mechanism. This ensures the entire mechanism is stably connected to the device and guarantees stability during replacement operations. A pin 19 is slidably connected inside the housing 16. A limit ring 20 is fixedly connected to the outside of the pin 19, and a spring 18 is sleeved on the outside of the pin 19. The side of the spring 18 furthest from the limit ring 20 is fixedly connected to the inside of the housing 16, while the other side of the spring 18 is fixedly connected to the outside of the limit ring 20. The elastic force acts on the pin 19 through the limiting ring 20, providing the pin 19 with a thrust towards the fixing ring 17 and the drilling bit 5, ensuring that the pin 19 can be stably inserted in its natural state, thereby fixing the drilling bit 5. A handle 21 is fixedly connected to the side of the pin 19 away from the housing 16. The pin 19 is slidably connected inside the fixing ring 17 and inside the drilling bit 5. By pulling the handle 21, the pin 19 is pulled out from the drilling bit 5 and the fixing ring 17, releasing the fixing of the drilling bit 5 for easy replacement. When the handle 21 is released, the spring 18 pushes the pin 19 to re-insert, completing the fixing of the new drill bit and realizing the function of quick drill bit replacement.

[0031] Working principle: The position of the drilling bit 5 is adjusted by the cooperation of the bracket 2 and the sliding plate 3, providing support and a basis for the drilling action; the clamping mechanism inside the worktable 1 drives the turntable 9 and the disc 10 to rotate through the drive motor 7, realizing the position conversion of the bearing outer ring. At the same time, the telescopic rod 15 inside the outer shell 6 extends and retracts, and drives the connecting rod 13 to rotate through the fixing block 12, thereby controlling the opening and closing of the inner support plate 8, which tightens from the inside of the bearing outer ring to the outside to stably clamp the outer ring of different sizes, ensuring that it is accurately aligned with the drilling bit 5, ensuring the stability of the workpiece during drilling, avoiding displacement that affects accuracy, and finally the drilling device 4 drives the drilling bit 5 to complete the drilling operation.

[0032] The drilling device 4 drives the drilling bit 5 to perform drilling operations. The two housings 16, which are fixed to the bottom of the sliding plate 3 and the outside of the fixing ring 17, provide installation support for the drill bit replacement mechanism. The pin 19 inside the housing 16 is stably inserted into the fixing ring 17 and the drilling bit 5 under the elastic force applied by the spring 18 through the limiting ring 20 to fix the drilling bit 5. When it is necessary to replace, the handle 21 at one end of the pin 19 can be pulled out from the fixing ring 17 and the drilling bit 5. After the fixation is released, the drilling bit 5 can be replaced. When the handle 21 is released, the spring 18 pushes the pin 19 to re-insert, and the new drilling bit 5 is fixed, realizing the quick replacement function.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic drilling device for bearing outer rings, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a bracket (2), the top of the bracket (2) is fixedly connected to a drilling device (4), the inside of the bracket (2) is slidably connected to a sliding plate (3), the bottom of the sliding plate (3) is fixedly connected to a fixing ring (17), the inside of the fixing ring (17) is slidably connected to a drilling bit (5), the inside of the workbench (1) is provided with a clamping mechanism, the clamping mechanism is used to clamp the outer ring of the bearing so that the drilling bit (5) can perform processing operations, the outside of the fixing ring (17) is provided with a drill bit replacement mechanism, the drill bit replacement mechanism is used to replace the drilling bit (5). The clamping mechanism includes a turntable (9), which is rotatably connected inside the workbench (1). A disc (10) is fixedly connected to the top of the turntable (9). A drive motor (7) is fixedly connected inside the workbench (1). A housing (6) is fixedly connected to the top of the disc (10). Several fixed seats (11) are fixedly connected to the outside of the housing (6). A connecting rod (13) is rotatably connected to the outside of the fixed seat (11). A positioning block (14) is rotatably connected to the end of the connecting rod (13) away from the fixed seat (11). An inner support plate (8) is fixedly connected to the outside of the positioning block (14). A telescopic rod (15) is fixedly connected inside the housing (6). A fixing block (12) is fixedly connected to the outside of the telescopic rod (15).

2. The automatic drilling device for bearing outer rings according to claim 1, characterized in that: The output end of the drive motor (7) is fixedly connected to the inside of the turntable (9), and the outside of the disc (10) is rotatably connected to the inside of the worktable (1).

3. The automatic drilling device for bearing outer rings according to claim 1, characterized in that: The connecting rod (13) is rotatably connected to the outside of the fixed block (12), and the telescopic rod (15) is slidably connected to the inside of the outer shell (6).

4. The automatic drilling device for bearing outer rings according to claim 1, characterized in that: The drill bit replacement mechanism includes two housings (16). The exterior of both housings (16) is fixedly connected to the bottom of the sliding plate (3). The side of the two housings (16) near the drilling drill bit (5) is fixedly connected to the exterior of the fixing ring (17). A pin (19) is slidably connected inside the housing (16). A limit ring (20) is fixedly connected to the exterior of the pin (19). A spring (18) is sleeved on the exterior of the pin (19).

5. The automatic drilling device for bearing outer rings according to claim 4, characterized in that: The side of the spring (18) away from the limiting ring (20) is fixedly connected to the inside of the housing (16), and the other side of the spring (18) is fixedly connected to the outside of the limiting ring (20).

6. The automatic drilling device for bearing outer rings according to claim 4, characterized in that: A handle (21) is fixedly connected to the side of the pin (19) away from the housing (16).

7. The automatic drilling device for bearing outer rings according to claim 4, characterized in that: The pin (19) is slidably connected inside the fixed ring (17).

8. The automatic drilling device for bearing outer rings according to claim 4, characterized in that: The pin (19) is slidably connected inside the drilling bit (5).