A punching device for bearing rings
By coordinating basic components such as mounting columns, rotating frames, and positioning columns, and combining them with pointers and dials, the angle setting for multi-hole machining of bearing rings is achieved, solving the problems of high cost and difficult maintenance of existing equipment, and improving the positioning accuracy and ease of operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG AOKAI BEARING CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
Existing bearing ring drilling equipment is costly, difficult to maintain, and requires highly skilled operators, making it difficult to achieve angular accuracy and consistency in multi-hole machining.
By using a combination of basic components such as mounting columns, rotating frames, and positioning columns, along with pointers and dials, precise angle setting between multiple holes can be achieved, reducing the need for electronic control devices. The positioning columns are driven by springs to fit against the surface of the collar, and the clamping base is rotated by a motor to ensure accurate hole positioning.
It reduces equipment manufacturing and maintenance costs, simplifies operation procedures, ensures angular accuracy and consistency in multi-hole processing, and improves equipment positioning accuracy and production efficiency.
Smart Images
Figure CN224526033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing ring processing technology, specifically a drilling device for bearing rings. Background Technology
[0002] As a core component of mechanical transmission systems, bearing rings are widely used in many fields such as automobiles, machine tools, motors, and rail transportation. Their machining accuracy directly affects the operational stability and service life of the entire mechanical device. The drilling process is a key step in the production of bearing rings. It is necessary to machine a specific number of mounting holes or connecting holes with a specific angle distribution on the end face of the ring. The positional accuracy and angular deviation of these holes play a decisive role in subsequent assembly and equipment performance. As the manufacturing industry develops towards high precision and high efficiency, the market has put forward increasingly higher requirements for the positioning accuracy, ease of operation, and production cost control of bearing ring drilling equipment. In current bearing ring drilling processes, common equipment typically includes a worktable, a clamp for holding the ring, a movable drill bit mechanism, and a positioning system for controlling the drilling position. The working process is roughly as follows: First, the bearing ring is fixed to the worktable using the clamp, ensuring the ring center is aligned with the equipment's rotation center or positioning reference. Then, according to the drilling requirements, the drill bit or ring is moved to the preset first hole position via manual adjustment or motor drive. After the drill bit completes the first hole, the relative position of the drill bit or ring is readjusted to align with the second hole position, and the drilling operation is repeated until all holes are completed. However, existing drilling equipment has certain limitations in practical applications. To ensure positioning accuracy, complex electronic control systems and precision transmission components are used, leading to high manufacturing costs, difficult maintenance, and high skill requirements for operators. Therefore, we propose a new bearing ring drilling device. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a drilling device for bearing rings. By cooperating with basic components such as mounting column, rotating frame, and positioning column, positioning is guaranteed while reducing the cost of use, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a drilling device for bearing rings, comprising a housing, wherein an adjustable drill bit is provided at the rear end of the housing, and a positioning component is also included; Positioning Components: These include a mounting post, a rotating frame, a sliding hole, a positioning post, and a pointer. The mounting post is located inside the front of the housing. The central axis of the mounting post and the central axis of the drill bit are on the same plane and parallel to each other. The lower end of the mounting post is rotatably connected to the rotating frame. A sliding hole is opened at the right end of the lower side of the rotating frame. The positioning post is slidably connected inside the sliding hole. The central axis of the positioning post and the central axis of the mounting post are parallel to each other. A scale is fixedly connected to the middle of the mounting post. The pointer is located on the upper side of the positioning post. The pointer works in conjunction with the scale to accurately set the angle between holes. The positioning of the hole spacing is achieved through the cooperation of the mounting post, rotating frame, positioning post, and other basic components. This eliminates the need for complex electronic control components to reduce costs and maintenance difficulty, while ensuring the angular accuracy and consistency of multi-hole machining. It is also simple and efficient to operate.
[0005] Furthermore, a workbench is provided in the middle of the outer casing, and a control switch group is provided on the upper side of the workbench. The input terminal of the control switch group is electrically connected to an external power supply for stable control.
[0006] Furthermore, the positioning component also includes a limiting plate, a spring, and a plug. The plug is threaded into the threaded hole at the right end of the upper side of the rotating frame. The plug has a clearance hole in the middle that corresponds to the upper end of the positioning post. The limiting plate is set on the outer arc surface of the positioning post. A spring is provided between the upper side of the limiting plate and the lower side of the plug. The spring is sleeved on the outer arc surface of the positioning post, and the elastic potential energy of the spring is used as the driving force of the positioning post.
[0007] Furthermore, the positioning component also includes a mounting ring, a mounting bracket is provided on the upper side of the worktable, the mounting ring is fixedly connected to the front side of the mounting bracket, and the mounting column is slidably connected to the inside of the mounting ring, providing sliding support and sliding guidance.
[0008] Furthermore, a drill bit housing is slidably connected inside the mounting bracket, and the drill bit is rotatably connected to the lower side wall of the drill bit housing. An electric cylinder is installed on the upper side of the mounting bracket, and the telescopic end of the electric cylinder passes through the upper side wall of the mounting bracket and is fixedly connected to the upper side of the drill bit housing. The input end of the electric cylinder is electrically connected to the output end of the control switch group for stable driving.
[0009] Furthermore, the upper side of the worktable is rotatably connected to a clamping base via a pivot. The upper side of the clamping base is provided with a positioning ring, the central axis of which coincides with the central axis of the mounting column. The upper side wall of the clamping base is provided with symmetrically distributed sliding grooves, and arc-shaped clamping plates are slidably connected inside the sliding grooves. A rotating column is rotatably connected between the mounting holes at both ends of the outer arc wall of the clamping base. The front and rear ends of the outer arc of the rotating column are provided with front and rear mirror-distributed threaded grooves, and the threaded grooves are all threadedly connected to the lower end of the adjacent upper arc-shaped clamping plate to facilitate clamping the bearing ring.
[0010] Furthermore, a motor is installed on the lower side of the workbench, and the output shaft of the motor is fixedly connected to the center of the lower end face of the rotating shaft. The input end of the motor is electrically connected to the output end of the control switch group to drive the clamping base to rotate.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This drilling device for bearing rings has the following advantages: The positioning assembly can efficiently meet the drilling requirements of multiple holes in bearing rings. It has a simple structure and low cost. Through the cooperation of basic components such as mounting column, rotating frame, and positioning column, the angle between multiple holes can be accurately set with the help of pointer and dial. There is no need for complicated electronic positioning device. The rotation of the rotating frame drives the positioning column, and the spring keeps the positioning column in contact with the ring. With the motor driving the clamping base to rotate, when the hole already drilled on the ring rotates to the underside of the positioning column, the positioning column is embedded in the hole to achieve positioning, ensuring the accuracy of subsequent drilling positions. It can easily complete the processing of multiple holes. Most of the components are conventional metal parts, which are easy to process and assemble, greatly reducing the manufacturing and maintenance costs of the equipment. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention from a front sectional view; Figure 3 This is an enlarged structural schematic diagram of point A of this utility model; Figure 4 This is a schematic diagram of the front side of the present invention; Figure 5 This is a partial structural diagram of the clamping base of this utility model; Figure 6 This is a partial structural schematic diagram of the rotating column of this utility model.
[0013] In the diagram: 1. Outer shell, 2. Positioning assembly, 21. Mounting ring, 22. Mounting post, 23. Rotating frame, 24. Sliding hole, 25. Positioning post, 26. Limiting plate, 27. Spring, 28. Plug, 29. Pointer, 3. Mounting bracket, 4. Drill bit housing, 5. Drill bit, 6. Electric cylinder, 7. Dial, 8. Clamping base, 9. Rotating post, 10. Threaded groove, 11. Arc-shaped clamping plate, 12. Motor, 13. Positioning ring, 14. Control switch assembly. Detailed Implementation
[0014] 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.
[0015] Please see Figure 1-6 This embodiment provides a technical solution: a drilling device for bearing rings, including a housing 1, a worktable in the middle of the housing 1, a control switch group 14 on the upper side of the worktable, the input end of the control switch group 14 being electrically connected to an external power source, an adjustable drill bit 5 inside the rear end of the housing 1, a drill bit housing 4 slidably connected inside the mounting frame 3, the drill bit 5 being rotatably connected to the lower side wall of the drill bit housing 4, a servo motor on the bottom wall of the drill bit housing 4, the output shaft of the servo motor being fixedly connected to the center of the upper end face of the drill bit 5 (the servo motor can be a MINASA6 series servo motor), the input end of the servo motor being electrically connected to the output end of the control switch group 14, an electric cylinder 6 being mounted on the upper side of the mounting frame 3, the telescopic end of the electric cylinder 6 penetrating through the upper side wall of the mounting frame 3 and being fixedly connected to the upper side of the drill bit housing 4, the input end of the electric cylinder 6 being electrically connected to the output end of the control switch group 14, and a positioning component 2. Positioning component 2 includes a mounting post 22, a rotating frame 23, a sliding hole 24, a positioning post 25, and a pointer 29. The mounting post 22 is located inside the front side of the housing 1. The central axis of the mounting post 22 is on the same plane as the central axis of the drill bit 5 and is parallel to each other. The lower end of the mounting post 22 is rotatably connected to the rotating frame 23 (the front end of the arc-shaped wall at the left end of the rotating frame 23 is threaded with a first tightening screw, and the rear end of the first tightening screw contacts the outer arc surface at the lower end of the mounting post 22). The right end of the lower frame of the rotating frame 23 has a sliding hole 24. The positioning post 25 is slidably connected inside the sliding hole 24 (the inner arc surface of the sliding hole 24 has a guide groove, and the outer arc surface of the positioning post 25 has a guide protrusion, which is slidably connected to the sliding groove). The diameter of the positioning post 25 is smaller than that of the drill bit 5. The diameter of the head 5, the central axis of the positioning post 25 is parallel to the central axis of the mounting post 22, the middle part of the mounting post 22 is fixedly connected to the dial 7, the pointer 29 is set on the upper side of the positioning post 25 (the pointer 29 is installed on the upper side of the positioning post 25 by bolts), the pointer 29 is used in conjunction with the dial 7, the positioning assembly 2 also includes a limiting piece 26, a spring 27 and a plug 28, the threaded hole on the right end of the upper frame of the rotating frame 23 is internally threaded to the plug 28, the middle part of the plug 28 is provided with a clearance hole corresponding to the upper end of the positioning post 25, the limiting piece 26 is set on the outer arc surface of the positioning post 25, the upper side of the limiting piece 26 and the lower side of the plug 28 are provided with a spring 27, the spring 27 is sleeved on the outer arc surface of the positioning post 25, the positioning assembly 2 also includes a mounting post 25, the positioning post 25 is fixedly connected to the dial 7, the middle part of the positioning assembly 25 is fixedly connected to the dial 7, the middle part of the positioning assembly 25 also includes a limiting piece 26, a spring 27 and a plug 28, the positioning assembly 25 also includes a mounting post 25, the positioning assembly 25 is fixedly connected to the dial 7, the central axis of the mounting post 25 is parallel to the central axis of the mounting post 22, the central axis of the mounting post 22 is fixedly connected ... The worktable has a mounting ring 21. A mounting bracket 3 is provided on the upper side of the worktable. The mounting ring 21 is fixedly connected to the front side of the mounting bracket 3. A mounting post 22 is slidably connected to the inside of the mounting ring 21 (the front end of the mounting ring 21 is threaded with a second tightening screw, the rear end of which is slidably connected to the outer arc surface of the mounting post 22; simultaneously, the outer arc surface of the mounting post 22 has a rib groove, and the inner arc surface of the mounting ring 21 has ribs, which are slidably connected to the rib groove). A clamping base 8 is rotatably connected to the upper side of the worktable via a rotating shaft. A positioning ring 13 is provided on the upper side of the clamping base 8. The central axis of the positioning ring 13 coincides with the central axis of the mounting post 22. Symmetrically distributed sliding grooves are provided on the upper side wall of the clamping base 8, and arc-shaped clamping plates 11 are slidably connected inside each groove. A rotating column 9 is rotatably connected between the mounting holes at both ends of the outer arc wall of the base 8 (the outer arc surface of the rotating column 9 and the inner arc surface of the mounting hole are rotatably connected by a sealed bearing). The outer arc surface of the rotating column 9 has mirror-image threaded grooves 10 at both ends. Each threaded groove 10 is threadedly connected to the lower end of the adjacent upper arc-shaped clamping plate 11. (A bellows is provided between the lower ends of the two arc-shaped clamping plates 11 and between the inner arc surface of the clamping base 8 and the lower outer surface of the adjacent inner arc-shaped clamping plate 11. The outer arc surface of the rotating column 9 inside the clamping base 8 and the mirror-image threaded grooves 10 at both ends of the rotating column 9 are all located inside the bellows. The bellows provides external protection for the threaded grooves 10 while ensuring their sealing and lubrication.) A handle is provided at the front end of the rotating column 9.A limiting barrel is provided on the front side of the outer arc face of the clamping base 8. The front end of the rotating column 9 is located inside the limiting barrel. A third tightening screw is threaded to the right end of the limiting barrel. The left end of the third tightening screw contacts the outer arc face of the front end of the rotating column 9. A motor 12 is installed on the lower side of the worktable. The output shaft of the motor 12 is fixedly connected to the center of the lower end face of the rotating shaft. The input end of the motor 12 is electrically connected to the output end of the control switch group 14. The bearing ring is placed in the positioning ring 13 of the clamping base 8. The positioning ring 13 is used to ensure that the center of the ring coincides with the central axis of the mounting column 22. The handle of the rotating column 9 is rotated. The mirror thread groove 10 on its outer arc face drives the two arc-shaped clamping plates 11 to slide relative to each other along the slide groove until the ring is tightly clamped. Then the third tightening screw on the limiting barrel is tightened to fix the rotation. Loosen the second tightening screw on the mounting ring 21, slide the mounting post 22 to adjust its height, so that the lower end of the positioning post 25 contacts the plane of the bearing ring. Under the elastic force of the spring 27 (transmitted through the limiting piece 26), the lower end of the positioning post 25 always fits against the surface of the bearing ring. Then tighten the second tightening screw to fix the position of the mounting post 22. Then rotate the rotating frame 23 to adjust the angle. The rotation of the rotating frame 23 drives the positioning post 25 to rotate synchronously. The central axis of the positioning post 25 rotates around the central axis of the mounting post 22. At this time, the worker can determine the rotation angle of the positioning post 25 by using the pointer 29 and the scale 7 (the zero mark of the scale 7 corresponds to the central axis of the drill bit 5, and the pointer 29 corresponds to the central axis of the positioning post 25). If the bearing ring needs to be drilled with two holes, the two holes... The angle between them is 45 degrees. The worker can adjust the rotation of the positioning column 25 by 45 degrees through the rotating frame 23. Then, tighten the first tightening screw to fix the rotating frame 23. At this time, the control switch group 14 makes the servo motor run, and the servo motor drives the drill bit 5 to rotate at high speed. The control switch group 14 makes the electric cylinder 6 extend and push the drill bit housing 4 to move down. The drill bit 5 contacts the bearing ring and completes drilling. This is the first hole in this position. To drill the second hole, the worker controls the control switch group 14 to retract the electric cylinder 6, and the drill bit housing 4 moves up. The drill bit 5 moves away from the bearing ring. Press the corresponding button of the control switch group 14, and the motor 12 starts. It drives the clamping base 8 and the bearing ring to rotate through the rotating shaft. The lower end of the positioning column 25 always contacts the plane of the bearing ring. When the first hole was drilled, the drill bit 5 is in contact with the bearing ring. When the hole rotates to the lower side of the positioning post 25, the lower end of the positioning post 25 no longer contacts the plane of the bearing ring. The spring 27 pushes the positioning post 25 downward into the first hole. At this time, the control switch group 14 stops the motor 12, and the base 8 and bearing ring stop rotating. Then, drilling again ensures that the angle between the two holes is 45 degrees. During this process, the spring 27 may age over time. At this time, the worker unscrews the bolt and removes the pointer 29, then unscrews the plug 28 and removes the aged spring 27. The new spring 27 is then placed on the outer arc surface of the positioning post 25. The lower end of the new spring 27 contacts the upper side of the limit piece 26. Then, the plug 28 is screwed in, and the pointer 29 is reinstalled on the upper side of the positioning post 25 with bolts.The positioning of multiple holes can be accomplished using a simple structure.
[0016] The working principle of the bearing ring drilling device provided by this utility model is as follows: The bearing ring is placed inside the positioning ring 13 of the clamping base 8. The positioning ring 13 ensures that the center of the ring coincides with the central axis of the mounting column 22. The handle of the rotating column 9 is rotated, and the mirrored thread groove 10 on its outer arc surface drives the two arc-shaped clamping plates 11 to slide relative to each other along the sliding groove until the ring is tightly clamped. Then, the third tightening screw on the limiting barrel is tightened to fix the rotating column 9. The second tightening screw on the mounting ring 21 is loosened, and the height of the sliding mounting column 22 is adjusted so that the lower end of the positioning column 25 contacts the plane of the ring. Under the elastic force of the spring 27 (transmitted through the limiting plate 26), the lower end of the positioning column 25 always adheres to the ring. Tighten the second tightening screw to fix the position of the mounting post 22. Then rotate the rotating frame 23 to adjust the angle. The rotation of the rotating frame 23 drives the positioning post 25 to rotate synchronously. The central axis of the positioning post 25 rotates around the central axis of the mounting post 22. At this time, the worker can determine the rotation angle of the positioning post 25 by using the pointer 29 and the scale 7 (the zero mark of the scale 7 corresponds to the central axis of the drill bit 5, and the pointer 29 corresponds to the central axis of the positioning post 25). If the bearing ring needs to be drilled with two holes, and the angle between the two holes is 45 degrees, the worker can adjust the rotation of the positioning post 25 by 45 degrees using the rotating frame 23. Then tighten the first tightening screw to fix the rotating frame 23. The control switch group 14 activates the servo motor, which drives the drill bit 5 to rotate at high speed. The control switch group 14 also extends the electric cylinder 6, pushing the drill bit housing 4 downwards. The drill bit 5 contacts the bearing ring and completes drilling. This is the first hole at this location. To drill a second hole, the worker controls the control switch group 14 to retract the electric cylinder 6, moving the drill bit housing 4 upwards and the drill bit 5 away from the bearing ring. Pressing the corresponding button on the control switch group 14 starts the motor 12, which rotates the clamping base 8 and the bearing ring via the shaft. The lower end of the positioning pin 25 remains in contact with the plane of the bearing ring. When the first hole is rotated to the underside of the positioning pin 25, the lower end of the positioning pin 25 no longer contacts the bearing ring. On the flat surface of the bearing ring, spring 27 pushes the positioning pin 25 downward into the first hole. At this time, the control switch group 14 stops the motor 12 from running, and the base 8 and bearing ring stop rotating. Then, drilling is done again to ensure that the angle between the two holes is 45 degrees. During this process, spring 27 will age after long-term use. At this time, the worker unscrews the bolt and removes the pointer 29. Then, the plug 28 is unscrewed and the aged spring 27 is removed. The new spring 27 is then placed on the outer arc surface of the positioning pin 25. The lower end of the new spring 27 contacts the upper side of the limit piece 26. Then, the plug 28 is screwed in, and the pointer 29 is reinstalled on the upper side of the positioning pin 25 with bolts.
[0017] It is worth noting that the electric cylinder 6 disclosed in the above embodiments can be an MCD series electric cylinder, the motor 12 can be a three-phase asynchronous motor, and the control switch group 14 is provided with control buttons that correspond one-to-one with the electric cylinder 6, the motor 12 and the servo motor and are used to control their switching.
[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A drilling device for bearing rings, comprising a housing (1), wherein an adjustable drill bit (5) is provided at the rear end of the inner part of the housing (1), characterized in that: It also includes a positioning component (2); Positioning component (2): It includes mounting post (22), rotating frame (23), sliding hole (24), positioning post (25) and pointer (29). The mounting post (22) is located inside the front side of the housing (1). The central axis of the mounting post (22) and the central axis of the drill bit (5) are located on the same plane and are parallel to each other. The lower end of the mounting post (22) is rotatably connected to the rotating frame (23). The right end of the lower frame of the rotating frame (23) is provided with a sliding hole (24). The positioning post (25) is slidably connected to the inside of the sliding hole (24). The central axis of the positioning post (25) is parallel to the central axis of the mounting post (22). The middle part of the mounting post (22) is fixedly connected to the dial (7). The pointer (29) is located on the upper side of the positioning post (25). The pointer (29) is used in conjunction with the dial (7).
2. The drilling equipment for bearing rings according to claim 1, characterized in that: The outer casing (1) has a workbench in the middle, and a control switch group (14) is provided on the upper side of the workbench. The input end of the control switch group (14) is electrically connected to an external power source.
3. The drilling equipment for bearing rings according to claim 1, characterized in that: The positioning component (2) also includes a limiting piece (26), a spring (27) and a plug (28). The plug (28) is threaded in the threaded hole at the right end of the upper frame of the rotating frame (23). The plug (28) has a clearance hole in the middle that corresponds to the upper end of the positioning post (25). The limiting piece (26) is set on the outer arc surface of the positioning post (25). A spring (27) is provided between the upper side of the limiting piece (26) and the lower side of the plug (28). The spring (27) is sleeved on the outer arc surface of the positioning post (25).
4. The drilling equipment for bearing rings according to claim 2, characterized in that: The positioning component (2) also includes a mounting ring (21), and the upper side of the workbench is provided with a mounting bracket (3). The mounting ring (21) is fixedly connected to the front side of the mounting bracket (3), and the mounting column (22) is slidably connected to the inside of the mounting ring (21).
5. A drilling device for bearing rings according to claim 4, characterized in that: The mounting bracket (3) is slidably connected to the drill bit housing (4), the drill bit (5) is rotatably connected to the lower side wall of the drill bit housing (4), and an electric cylinder (6) is installed on the upper side of the mounting bracket (3). The telescopic end of the electric cylinder (6) passes through the upper side wall of the mounting bracket (3) and is fixedly connected to the upper side of the drill bit housing (4). The input end of the electric cylinder (6) is electrically connected to the output end of the control switch group (14).
6. A drilling device for bearing rings according to claim 2, characterized in that: The upper side of the workbench is rotatably connected to a clamping base (8) via a rotating shaft. The upper side of the clamping base (8) is provided with a positioning ring (13). The central axis of the positioning ring (13) coincides with the central axis of the mounting column (22). The upper side wall of the clamping base (8) is provided with symmetrically distributed sliding grooves. Arc-shaped clamping plates (11) are slidably connected inside the sliding grooves. A rotating column (9) is rotatably connected between the mounting holes at both ends of the outer arc wall of the clamping base (8). The front and rear ends of the outer arc face of the rotating column (9) are provided with front and rear mirror-distributed threaded grooves (10). The threaded grooves (10) are all threadedly connected to the lower end of the adjacent upper arc-shaped clamping plate (11).
7. A drilling device for bearing rings according to claim 6, characterized in that: A motor (12) is installed on the lower side of the workbench. The output shaft of the motor (12) is fixedly connected to the center of the lower end face of the rotating shaft. The input end of the motor (12) is electrically connected to the output end of the control switch group (14).