Fine-adjustable reamer
By designing a finely adjustable reamer structure and utilizing a combination of a limiting ring and a threaded rod, the problem of the reamer being unable to be adjusted after wear is solved, enabling flexible adjustment and stable machining of the reamer, reducing the scrap rate, and improving machining accuracy and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINHE DIAMOND TOOL (SHENZHEN) CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-12
AI Technical Summary
In existing technologies, reamers cannot be adjusted after wear, leading to machining that does not meet drawing requirements and resulting in scrap, waste, and increased machining costs.
A finely adjustable reamer was designed. Through a combination of a limiting ring, a hexagonal adjusting block, and a threaded rod, the reamer can be flexibly adjusted and limited, compensating for the size after wear and ensuring machining accuracy and stability.
By adjusting the structure to compensate for reamer wear, the probability of scrapping is reduced, machining accuracy and flexibility are improved, and machining quality and stability are maintained.
Smart Images
Figure CN224222861U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-precision reamers, and in particular to a finely adjustable reamer. Background Technology
[0002] An adjustable reamer is a tool used for precision machining and finishing of hole diameters. Compared to traditional reamers, adjustable reamers offer greater flexibility, allowing for precise adjustment of the hole diameter as needed during different machining processes, ensuring higher machining accuracy and flexibility.
[0003] In existing technologies, carbide machine reamers are frequently used for reaming during machining. When the reamer diameter wears down, the reamed hole no longer meets the requirements specified in the drawing, and the reamer is thus scrapped. However, although the reamer suffers some wear, its cutting edge still has high usability. Scrapping it would result in significant waste and increase the machining cost of the workpiece. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a finely adjustable reamer.
[0005] This utility model is achieved using the following technical solution: a finely adjustable reamer, including a reamer handle, an adjusting block fixedly connected to the top of the reamer handle, a T-shaped groove on the top of the adjusting block, a T-shaped slider slidably connected to the inner wall of the T-shaped groove, a reamer fixedly connected to the top of the T-shaped slider, an adjusting block slidably connected to the surface of the reamer, a threaded rod rotatably connected to the bottom of the adjusting block, the outer wall of the threaded rod being threadedly connected to the inner wall of the adjusting block, the threaded rod penetrating the inner wall of the adjusting block and extending therefrom, a hexagonal clearance groove on the bottom of the threaded rod, a hexagonal adjusting block slidably connected to the inner wall of the hexagonal clearance groove, a limit groove on the inner wall of the reamer handle, a limit ring rotatably connected to the inner wall of the limit groove, the top of the limit ring being fixedly connected to the bottom of the hexagonal adjusting block, and an operating groove on the bottom of the limit ring.
[0006] As a further improvement to the above solution, several T-shaped grooves are provided, and the several T-shaped grooves are evenly arranged around the center of the reamer handle. The bottom of the limiting ring penetrates the inner wall of the reamer handle and extends outward.
[0007] As a further improvement to the above solution, a plurality of T-shaped sliders are provided, and the plurality of T-shaped sliders are evenly arranged around the center of the reamer handle. A plurality of reamers are provided, and the plurality of reamers are evenly arranged around the center of the reamer handle.
[0008] With the above technical solution, the limiting ring is rotated by the operating groove, so that the limiting ring rotates along the limiting groove. The limiting ring drives the hexagonal adjusting block, and the hexagonal adjusting block rotates the threaded rod through the hexagonal clearance groove. At the same time, the threaded rod rotates and descends along the adjusting fixing block into the reamer handle, while the inner wall of the threaded rod slides downward along the outer wall of the adjusting block through the hexagonal clearance groove.
[0009] As a further improvement to the above solution, a spring limiting rod is slidably connected to the inner wall of the T-shaped slider. The spring limiting rod passes through the inner wall of the T-shaped slider and extends therethrough. The spring limiting rod is fixedly connected to the inner wall of the adjusting block. A limiting spring is fixedly connected to the right side of the T-shaped slider. The end of the limiting spring away from the T-shaped slider is fixedly connected to the inner wall of the adjusting block.
[0010] As a further improvement to the above solution, a plurality of spring limiting rods are provided, and the plurality of spring limiting rods are evenly arranged around the adjusting block. A plurality of limiting springs are provided, and the plurality of limiting springs are evenly arranged around the adjusting block.
[0011] As a further improvement to the above solution, a limiting hole is provided at the bottom of the reamer handle, a limiting rod is slidably connected to the inner wall of the limiting hole, a hexagonal limiting block is slidably connected to the inner wall of the operating groove, and a connecting block is fixedly connected to the end of the hexagonal limiting block away from the reamer handle.
[0012] As a further improvement to the above solution, the end of the limiting rod away from the reamer handle is fixedly connected to the surface of the connecting block, the connecting block is in contact with the bottom of the reamer handle, the outer wall of the reamer handle is slidably connected to the limiting shell, and the bottom of the inner wall of the limiting shell is in contact with the bottom of the connecting block.
[0013] With the above technical solution, while the T-shaped slider slides outward along the T-shaped groove, it also slides along the surface of the spring limiting rod. At the same time, the T-shaped slider compresses the limiting spring, so that when the reamer is processing the tool, the limiting spring limits the reamer, preventing the reamer from sliding outward and affecting the process accuracy.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention utilizes a rotating limiting ring via an operating groove. The limiting ring rotates along the limiting groove, causing a hexagonal adjusting block to rotate a threaded rod via a hexagonal clearance groove. Simultaneously, the threaded rod descends along the adjusting block towards the reamer handle, while its inner wall slides downwards along the outer wall of the adjusting block via the hexagonal clearance groove. This downward movement of the threaded rod pulls down the adjusting block, causing it to press the reamer outwards through its inclined surface. The reamer then drives a T-shaped slider to expand outwards along a T-shaped groove, compensating for wear and increasing the reamer's flexibility. This reduces the probability of reamer failure, ensuring higher machining accuracy and flexibility.
[0016] This invention utilizes a T-shaped slider that slides outward along a T-shaped groove while simultaneously sliding along the surface of a spring-loaded limiting rod. The T-shaped slider compresses the limiting spring, thus limiting the reamer during machining. This prevents the reamer from sliding outward, which could affect machining accuracy. After adjusting the outer wall of the adjusting block, the limiting rod is installed inside a limiting hole at the bottom of the reamer handle. The limiting rod drives a connecting block, which in turn drives a hexagonal limiting block into an operating groove at the bottom of the limiting ring. This limits the limiting ring, which in turn limits the hexagonal adjusting block, which in turn limits the threaded rod, which in turn limits the adjusting block, preventing displacement of the reamer during operation. Finally, the limiting outer shell is slidably fitted onto the surface of the reamer handle, thus limiting the connecting block and preventing it from sliding downward, maintaining the stability and machining quality of the reamer during processing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the reamer handle of this utility model;
[0019] Figure 3 This is a schematic diagram of the limiting groove structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the limiting hole structure of this utility model;
[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram of section A in the middle.
[0022] Explanation of key symbols:
[0023] 1. Reamer handle; 2. Adjusting and fixing block; 3. T-shaped slide groove; 4. T-shaped slider; 5. Reamer; 6. Adjusting block; 7. Threaded rod; 8. Hexagonal clearance groove; 9. Hexagonal adjusting block; 10. Limiting groove; 11. Limiting ring; 12. Operating groove; 13. Spring limiting rod; 14. Limiting spring; 15. Limiting hole; 16. Limiting rod; 17. Hexagonal limiting block; 18. Connecting block; 19. Limiting housing. Detailed Implementation
[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0025] Example:
[0026] Please combine Figure 1-5 This embodiment of a finely adjustable reamer includes a reamer handle 1, an adjusting block 2 fixedly connected to the top of the reamer handle 1, a T-shaped groove 3 on the top of the adjusting block 2, a T-shaped slider 4 slidably connected to the inner wall of the T-shaped groove 3, a reamer 5 fixedly connected to the top of the T-shaped slider 4, an adjusting block 6 slidably connected to the surface of the reamer 5, a threaded rod 7 rotatably connected to the bottom of the adjusting block 6, the outer wall of the threaded rod 7 being threadedly connected to the inner wall of the adjusting block 2, the threaded rod 7 penetrating the inner wall of the adjusting block 2 and extending therefrom, a hexagonal clearance groove 8 on the bottom of the threaded rod 7, a hexagonal adjusting block 9 slidably connected to the inner wall of the hexagonal clearance groove 8, a limiting groove 10 on the inner wall of the reamer handle 1, a limiting ring 11 rotatably connected to the inner wall of the limiting groove 10, the top of the limiting ring 11 being fixedly connected to the bottom of the hexagonal adjusting block 9, and an operating groove 12 on the bottom of the limiting ring 11.
[0027] Several T-shaped grooves 3 are provided, and the T-shaped grooves 3 are evenly arranged around the center of the reamer handle 1. The bottom of the limiting ring 11 penetrates the inner wall of the reamer handle 1 and extends outward.
[0028] Several T-shaped sliders 4 are provided, and the several T-shaped sliders 4 are evenly arranged around the center of the reamer handle 1. Several reamers 5 are provided, and the several reamers 5 are evenly arranged around the center of the reamer handle 1.
[0029] A spring limiting rod 13 is slidably connected to the inner wall of the T-shaped slider 4. The spring limiting rod 13 passes through the inner wall of the T-shaped slider 4 and extends therethrough. The spring limiting rod 13 is fixedly connected to the inner wall of the adjusting block 2. A limiting spring 14 is fixedly connected to the right side of the T-shaped slider 4. The end of the limiting spring 14 away from the T-shaped slider 4 is fixedly connected to the inner wall of the adjusting block 2.
[0030] Several spring limit rods 13 are provided, and the several spring limit rods 13 are evenly arranged around the adjusting block 6. Several limit springs 14 are provided, and the several limit springs 14 are evenly arranged around the adjusting block 6.
[0031] A limiting hole 15 is provided at the bottom of the reamer handle 1. A limiting rod 16 is slidably connected to the inner wall of the limiting hole 15. A hexagonal limiting block 17 is slidably connected to the inner wall of the operating groove 12. A connecting block 18 is fixedly connected to the end of the hexagonal limiting block 17 away from the reamer handle 1.
[0032] The end of the limiting rod 16 away from the reamer handle 1 is fixedly connected to the surface of the connecting block 18. The connecting block 18 is in contact with the bottom of the reamer handle 1. The outer wall of the reamer handle 1 is slidably connected to the limiting housing 19. The bottom of the inner wall of the limiting housing 19 is in contact with the bottom of the connecting block 18.
[0033] The implementation principle of a finely adjustable reamer in this embodiment is as follows: The limiting ring 11 is rotated by the operating groove 12, causing it to rotate along the limiting groove 10. The limiting ring 11 drives the hexagonal adjusting block 9, which rotates the threaded rod 7 through the hexagonal clearance groove 8. Simultaneously, the threaded rod 7 rotates and descends along the adjusting fixing block 2 towards the inside of the reamer handle 1. At the same time, the inner wall of the threaded rod 7 slides downwards along the outer wall of the adjusting block 6 through the hexagonal clearance groove 8. Simultaneously, the threaded rod 7 pulls down the adjusting block 6, causing the adjusting block 6 to press the reamer 5 outwards through its inclined surface. The reamer 5 drives the T-shaped slider 4 to expand outwards along the T-shaped groove 3, thereby compensating for its worn dimensions, increasing the flexibility of the reamer 5, and reducing the probability of scrapping the reamer 5, ensuring higher machining accuracy and flexibility. Furthermore, while the T-shaped slider 4 slides outwards along the T-shaped groove 3, it also slides along the surface of the spring limiting rod 13. 4. The compression limit spring 14 is used to limit the reamer 5 when it is machining the tool, preventing the reamer 5 from sliding outward and affecting the machining accuracy. At the same time, after adjusting the outer wall of the adjusting block 6, the limit rod 16 is installed inside the limit hole 15 opened at the bottom of the reamer handle 1. The limit rod 16 drives the connecting block 18, and the connecting block 18 drives the hexagonal limit block 17 to be installed into the operating groove 12 opened at the bottom of the limit ring 11, thereby limiting the limit ring 11. The limit ring 11 limits the hexagonal adjusting block 9, the hexagonal adjusting block 9 limits the threaded rod 7, and the threaded rod 7 limits the adjusting block 6, preventing the reamer 5 from shifting during operation. Then, the limit shell 19 is slidably sleeved on the surface of the reamer handle 1, thereby limiting the connecting block 18 through the limit shell 19, preventing the connecting block 18 from sliding downward, and maintaining the stability and machining quality of the reamer 5 during the machining process.
[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A finely adjustable reamer, characterized in that, The device includes a reamer handle (1), an adjusting block (2) fixedly connected to the top of the reamer handle (1), a T-shaped groove (3) on the top of the adjusting block (2), a T-shaped slider (4) slidably connected to the inner wall of the T-shaped groove (3), a reamer (5) fixedly connected to the top of the T-shaped slider (4), an adjusting block (6) slidably connected to the surface of the reamer (5), and a threaded rod (7) rotatably connected to the bottom of the adjusting block (6), with the outer wall of the threaded rod (7) threadedly connected to the inner wall of the adjusting block (2). The threaded rod (7) passes through the inner wall of the adjusting and fixing block (2) and extends therein. A hexagonal clearance groove (8) is provided at the bottom of the threaded rod (7). A hexagonal adjusting block (9) is slidably connected to the inner wall of the hexagonal clearance groove (8). A limit groove (10) is provided on the inner wall of the reamer handle (1). A limit ring (11) is rotatably connected to the inner wall of the limit groove (10). The top of the limit ring (11) is fixedly connected to the bottom of the hexagonal adjusting block (9). An operating groove (12) is provided at the bottom of the limit ring (11).
2. The adjustable reamer as described in claim 1, characterized in that: The T-shaped groove (3) is provided in several places, and the T-shaped groove (3) is evenly arranged around the center of the reamer handle (1). The bottom of the limiting ring (11) penetrates the inner wall of the reamer handle (1) and extends outward.
3. The adjustable reamer as described in claim 1, characterized in that: Several T-shaped sliders (4) are provided, and the several T-shaped sliders (4) are evenly arranged around the center of the reamer handle (1). Several reamers (5) are provided, and the several reamers (5) are evenly arranged around the center of the reamer handle (1).
4. The adjustable reamer as described in claim 1, characterized in that: A spring limiting rod (13) is slidably connected to the inner wall of the T-shaped slider (4). The spring limiting rod (13) passes through the inner wall of the T-shaped slider (4) and extends therethrough. The spring limiting rod (13) is fixedly connected to the inner wall of the adjusting block (2). A limiting spring (14) is fixedly connected to the right side of the T-shaped slider (4). The end of the limiting spring (14) away from the T-shaped slider (4) is fixedly connected to the inner wall of the adjusting block (2).
5. The adjustable reamer as described in claim 4, characterized in that: A plurality of spring limiting rods (13) are provided, and the plurality of spring limiting rods (13) are evenly arranged around the adjusting block (6). A plurality of limiting springs (14) are provided, and the plurality of limiting springs (14) are evenly arranged around the adjusting block (6).
6. The adjustable reamer as described in claim 4, characterized in that: The bottom of the reamer handle (1) has a limiting hole (15), the inner wall of the limiting hole (15) is slidably connected to a limiting rod (16), the inner wall of the operating groove (12) is slidably connected to a hexagonal limiting block (17), and the end of the hexagonal limiting block (17) away from the reamer handle (1) is fixedly connected to a connecting block (18).
7. The adjustable reamer as described in claim 6, characterized in that: The end of the limiting rod (16) away from the reamer handle (1) is fixedly connected to the surface of the connecting block (18). The connecting block (18) is in contact with the bottom of the reamer handle (1). The outer wall of the reamer handle (1) is slidably connected to the limiting shell (19). The bottom of the inner wall of the limiting shell (19) is in contact with the bottom of the connecting block (18).