Quick-change structure reamer
By designing a quick-change reamer, the problems of low tool changing efficiency, high cost, and insufficient flexibility of traditional reamers are solved. It enables rapid on-site tool changing and ensures accuracy, thereby reducing production costs and improving processing efficiency and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN ZHONG TIAN NC TOOLS
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional reamers suffer from low tool-changing efficiency, high cost, and insufficient flexibility in scenarios requiring frequent tool changes, making it difficult to meet the demands of modern manufacturing for processing efficiency, precision, and cost control.
A quick-change reamer structure was designed, including a flange handle, a flange shank, a rear end and a front end reamer head. It can be quickly connected and disassembled through multiple locking screws and locking nuts. Accuracy is ensured by combining a detection ring and a limit pin. The HSK flange handle is used to improve coaxiality, and a guide bar provides guiding support.
It enables quick on-site reamer replacement, reduces inventory costs, improves processing efficiency and accuracy, lowers production costs, and adapts to the flexible needs of multi-variety, small-batch production.
Smart Images
Figure CN224526132U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a quick-change reamer. Background Technology
[0002] This stems from the continuous improvement in processing efficiency, precision, and cost control requirements of modern manufacturing. With the widespread adoption of CNC machine tools, machining centers, and flexible manufacturing systems, traditional reamers have the following limitations in scenarios requiring frequent tool changes: 1. Low tool changing efficiency: Conventional reamers require disassembling the entire tool, which is time-consuming and affects production cycle, making it difficult to adapt to high-speed machining requirements; 2. High overall cost: Solid carbide reamers need to be replaced as a whole after wear, resulting in low material utilization and high maintenance costs; 3. Insufficient flexibility: In multi-variety, small-batch production, traditional structures are difficult to quickly adapt to different hole diameters or material machining requirements. Utility Model Content
[0003] The purpose of this invention is to provide a quick-change reamer to solve the problem that conventional reamers are not easy to change quickly.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides a quick-change reamer, including a flange handle, a flange bar mounted on the flange handle, a rear reamer head and a front reamer head mounted on the flange bar; One end of the flange cutter bar is connected to the flange cutter handle by a plurality of tool holder locking screws; the other end face of the flange cutter bar is fixedly connected to the reamer head by a plurality of locking screws. The front reamer head is connected to the end of the flange knife bar by a lock nut; A detection ring is also provided on the flange tool holder; The flange tool bar is also provided with a set screw for adjusting the detection ring; and a sealing ring and a gasket are provided in the mounting screw hole of the set screw.
[0005] In this embodiment, a limiting pin is further provided radially on the front reamer head.
[0006] Furthermore, in this embodiment, multiple guide strips are axially arranged on the outer peripheral wall of the front end of the flange knife bar.
[0007] Furthermore, in this embodiment, the flange tool holder is an HSK flange tool holder.
[0008] Furthermore in this embodiment, the detection ring is located between the front reamer head and the rear reamer head.
[0009] Compared with the prior art, the beneficial technical effects of this utility model are as follows: 1. No professional tool changers are needed to go to the tool changing room to change tools. On-site operators can change tools directly on-site. Compared with traditional reamers, tool change can be shortened by 0.5 hours, improving change efficiency.
[0010] 2. Customers can customize cutting tools, and only the reamer heads need to be stocked later. There is no need to stock a large number of complete tools, which saves customers inventory costs and improves versatility and flexibility.
[0011] 3. The tool holder and tool head adopt an interference fit, and the runout after quick change can reach 0.005mm. During machining, the guide support fully meets the customer's machining requirements.
[0012] 4. Compared with traditional reamers, the production cost of the reamer head is reduced, making it more competitive in the market.
[0013] 5. The inner diameter of the rear reamer head is larger than the outer diameter of the front reamer head, allowing them to be replaced individually. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings. Figure 1 This is a schematic diagram of the main body of the quick-change reamer of this utility model; Figure 2 This is a schematic diagram of the quick-change reamer installation section of this utility model; Figure 3 An enlarged schematic diagram of the gasket, sealing ring, and set screw mounting structure; Figure 4 This is a schematic diagram of the front-end reamer head structure.
[0015] Explanation of reference numerals in the attached diagram: 1. Flange knife holder; 2. Flange knife rod; 3. Gasket; 4. Sealing ring; 5. Set screw; 6. Rear reamer head; 7. Guide strip; 8. Front reamer head; 9. Locking nut; 10. Limit pin; 11. Locking screw; 12. Detection ring; 13. Adjusting set screw. Detailed Implementation
[0016] This embodiment provides a quick-change reamer, including a flange handle 1, a flange bar 2 mounted on the flange handle 1, a rear reamer head 6 and a front reamer head 8 mounted on the flange bar 2; One end of the flange cutter bar 2 is connected to the flange cutter handle 1 by a plurality of tool holder locking screws; the other end face of the flange cutter bar 2 is fixedly connected to the reamer head 6 by a plurality of locking screws 11; the front reamer head 8 is connected to the end of the flange cutter bar 2 by a locking nut 9; a detection ring 12 is also installed on the flange cutter bar 2; a set screw 5 for adjusting the detection ring 12 is also installed on the flange cutter bar 2; and a sealing ring 4 and a gasket 3 are installed in the mounting screw hole of the set screw 5.
[0017] In this embodiment, the rear reamer head 6 is coaxially fixed to the other end face of the flange cutter bar 2 by four centrally symmetrically distributed locking screws 11. (Reference) Figure 2 The reamer head 6 can be quickly replaced by loosening / tightening the screws on the four locking screws 11. After the quick replacement, the runout can be ≤0.004mm.
[0018] In this embodiment, a limiting pin 10 is also installed radially on the front reamer head 8. The front reamer head 8 can be quickly replaced by loosening / locking the locking nut 9. The limiting pin 10 is specifically designed to cooperate with the reamer head groove to ensure that the front reamer head 8 will not loosen during the processing. The runout after quick replacement can reach ≤0.004mm.
[0019] In this embodiment, a plurality of guide bars 7 are axially installed on the outer peripheral wall of the front end of the flange knife bar 2.
[0020] The flange tool holder 1 is an HSK flange tool holder, reference Figure 1 The HSK flange tool holder 1 is connected to the flange tool rod 2, and the coaxiality of the two is achieved by adjusting the set screw 13.
[0021] Specifically, refer to Figure 1 The detection ring 12 is located between the front reamer head 8 and the rear reamer head 6.
[0022] In use, firstly, the flange is adjusted via the detection ring 12 to ensure that the runout of the flange tool holder 2 on the spindle is ≤0.002mm. The detection ring 12 is a key functional component, whose core function is to ensure that the tool is installed in place after quick change and meets the predetermined accuracy requirements. It is mainly used to verify and guarantee the axial position accuracy and radial runout accuracy of the reamer after installation.
[0023] This product features quick changeover and significantly reduced costs, making it suitable for high-speed reaming on various machine tools. When used on CNC machine tools, machining centers, and flexible manufacturing systems, it can greatly improve processing efficiency and product accuracy.
[0024] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims
1. A quick-change reamer, characterized in that: It includes a flange shank (1), a flange shank (2) mounted on the flange shank (1), a rear reamer head (6) mounted on the flange shank (2), and a front reamer head (8). One end of the flange knife bar (2) is connected to the flange knife handle (1) by a plurality of knife handle locking screws; the other end face of the flange knife bar (2) is fixedly connected to the reamer head (6) by a plurality of locking screws (11). The front reamer head (8) is connected to the end of the flange knife bar (2) by a locking nut (9); A detection ring (12) is also provided on the flange knife bar (2); The flange knife bar (2) is also provided with a set screw (5) for adjusting the detection ring (12); and a sealing ring (4) and a gasket (3) are provided in the mounting screw hole of the set screw (5).
2. The quick-change reamer according to claim 1, characterized in that: A limiting pin (10) is also provided radially on the front end reamer head (8).
3. The quick-change reamer according to claim 1, characterized in that: Multiple guide bars (7) are axially arranged on the outer peripheral wall at the front end of the flange knife bar (2).
4. The quick-change reamer according to claim 1, characterized in that: The flange tool holder (1) is an HSK flange tool holder.
5. The quick-change reamer according to claim 1, characterized in that: The detection ring (12) is located between the front reamer head (8) and the rear reamer head (6).