Modularized reamer head
Through the hollow groove design of the modular reamer head, the problem of "mid-convex" phenomenon in grinding processing is solved, and the stable connection between the reamer head and the tool holder is achieved, processing accuracy and production efficiency are improved, and cost is reduced.
Patent Information
- Application Number
- CN202422311849.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Traditional modular conical reamer heads are prone to "medium convex" during grinding, resulting in unstable installation, affecting processing accuracy and stability, and complex grinding, increasing costs.
A modular reaming head is designed, using an empty groove structure to reduce the grinding processing area, avoid the sudden increase in contact area of the grinding wheel at the corner, and connect it to the tool holder through the embedded connection part, and fix it with fasteners to ensure connection stability and accuracy.
The installation accuracy and stability of the reamer head and handle are improved, the wear of the grinding wheel is reduced, the production cost is reduced, the processing quality and efficiency are improved, and the occurrence of "middle convex" phenomenon is avoided.
Smart Images
Figure CN223083925U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machining, and particularly relates to a modular reamer head. Background Art
[0002] Traditional reamers use carbide inserts. In order to meet the processing requirements, such reamers need to be equipped with various sizes and shapes, resulting in an increase in tool procurement costs and an increase in the complexity of inventory management. With the development of technology, a highly flexible tool system, a modular reamer, has emerged. It can quickly and easily replace the reamer head to adapt to different processing requirements, and has high positioning accuracy and small runout, which can significantly improve production efficiency and reduce processing costs. However, for the existing modular tapered reamer head, the connection part with the tool holder needs to have very high precision, and generally the runout cannot exceed 0.002 mm. During the production of the reamer head, the joint surface between the reamer head and the tool holder needs to be processed by grinding. When grinding, the grinding wheel feeds from the outside to the inside. During this process, the grinding wheel is prone to wear, resulting in a "mid-convex" phenomenon on the end face of the reamer head, causing the reamer head to fit unstably with the tool holder during installation, affecting the installation accuracy and processing accuracy, and resulting in poor stability during continuous use.
[0003] Therefore, the above problems need to be solved urgently. Summary of the Utility Model
[0004] Utility Model Objective: To overcome the above deficiencies, the utility model provides a modular reamer head, which avoids the "mid-convex" phenomenon on the end face of the reamer head during the processing, improves the connection stability between the reamer head and the tool holder, improves the installation accuracy of the reamer head and the tool holder, improves the processing accuracy of the reamer, and improves the processing stability.
[0005] Technical Solution: To achieve the above objective, the utility model provides a modular reamer head, including a cutter disc. The cutter disc is in a disc shape, and the cutter disc is provided with a blade mounting groove and a tool holder connection end. The blade mounting groove and the tool holder connection end are respectively arranged at both ends of the cutter disc, and a reamer blade is installed in the blade mounting groove. The tool holder connection end includes an end face, and an embedded connection part is provided on the end face. The end face is provided with a relief groove. During use, the embedded connection part is embedded into the tool holder, the end face abuts against one end of the tool holder, and a fastener passes through the cutter disc and is screwed into the threaded hole of the tool holder to connect the utility model with the tool holder. Since the end face is provided with a relief groove, when grinding the end face, it is not necessary to grind the part of the relief groove, and it is not necessary to grind the corner part formed by the relief groove and the embedded connection part, reducing the area to be ground, avoiding the sudden increase in the contact area at the corner part during the grinding process of the grinding wheel, reducing the wear of the grinding wheel, improving the processing quality, reducing the number of times of grinding wheel dressing or replacement, improving production efficiency, reducing production costs, avoiding the "mid-convex" phenomenon on the end face, improving the connection stability between the reamer head and the tool holder, improving the installation accuracy of the reamer head and the tool holder, improving the processing accuracy of the reamer, and improving the processing stability.
[0006] Further, in the above modular reamer head, the embedded connection part and the cutter head are coaxially arranged, and the embedded connection part is cylindrical.
[0007] Further, in the above modular reamer head, in order to improve the installation convenience and connection stability, the side wall of the embedded connection part is beveled, and the side surface of the embedded connection part extends from the top surface of the embedded connection part to the end surface.
[0008] Further, in the above modular reamer head, the end surface includes a connection surface and a relief groove. The connection surface is higher than the bottom surface of the relief groove. The relief groove is arranged around the outer periphery of the connection part, and the connection surface is arranged on the outer periphery of the relief groove. The design of the relief groove enables the grinding wheel to not need to process the connection part between the end surface and the embedded connection part, reduces the grinding processing area, reduces the wear of the grinding wheel, ensures the processing quality, improves the production efficiency, and avoids the "middle bulge" phenomenon on the end surface, improves the connection stability between the reamer head and the tool holder, improves the installation accuracy of the reamer head and the tool holder, improves the processing accuracy of the reamer, and improves the processing stability.
[0009] Further, in the above modular reamer head, in order to ensure the connection strength, the width of the connection surface is 3 - 5 mm.
[0010] Further, in the above modular reamer head, in order to achieve avoidance while ensuring the structural strength and reducing the processing amount, the depth of the relief groove is 0.5 mm.
[0011] Further, in the above modular reamer head, there are two or more blade mounting grooves arranged around the axis of the cutter head.
[0012] Further, in the above modular reamer head, a through hole is arranged along the axis of the cutter head. The fastener connects the cutter head and the tool holder through the through hole.
[0013] It can be seen from the above technical solutions that the present utility model has the following beneficial effects: The modular reamer head of the present utility model, by setting the relief groove, reduces the area of the grinding processing area required, avoids the sudden increase in the contact area at the corner during the grinding process of the grinding wheel, reduces the wear of the grinding wheel, improves the processing quality, reduces the number of times of grinding wheel dressing or replacement, improves the production efficiency, reduces the production cost, avoids the "middle bulge" phenomenon on the end surface, improves the connection stability between the reamer head and the tool holder, improves the installation accuracy of the reamer head and the tool holder, improves the processing accuracy of the reamer, and improves the processing stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural view of the modular reamer head of the present utility model;
[0015] Figure 2 is a side view of the modular reamer head of the present utility model;
[0016] Figure 3 is Figure 2 the sectional view taken along the direction A shown.
[0017] In the figure: 1. Cutter head, 11. Blade mounting groove, 12. Handle connection end, 121. End face, 122. Embedded connection part, 1211. Relief groove, 1212. Connection surface. Detailed implementation mode
[0018] Embodiment 1
[0019] As Figure 1 A modular reamer head as shown includes a cutter head 1. The cutter head 1 is disc-shaped. The cutter head 1 is provided with a blade mounting groove 11 and a handle connection end 12. The blade mounting groove 11 and the handle connection end 12 are respectively arranged at both ends of the cutter head 1. A reamer blade is installed in the blade mounting groove 11. The handle connection end 12 includes an end face 121. An embedded connection part 122 is provided on the end face 121. A relief groove 1211 is provided on the end face 121. The depth of the relief groove 1211 is 0.5 mm. The embedded connection part 122 and the cutter head 1 are coaxially arranged. The embedded connection part 122 is cylindrical. The side wall of the embedded connection part 122 is inclined. The side surface of the embedded connection part 122 extends from the top surface of the embedded connection part 122 to the end face 121. There are 2 or more blade mounting grooves 11 arranged around the axis of the cutter head 1. A through hole is provided along the axis of the cutter head 1. A fastener connects the cutter head 1 and the handle through the through hole. The end face 121 includes a connection surface 1212 and a relief groove 1211. The connection surface 1212 is higher than the bottom surface of the relief groove 1211. The relief groove 1211 is arranged around the outer periphery of the connection part 122. The connection surface 1212 is arranged on the outer periphery of the relief groove 1211. The width of the connection surface 1212 is 3 - 5 mm.
[0020] During use, the embedded connection part 122 is embedded into the handle. The end face 121 abuts against the handle. A fastener passes through the through hole provided in the cutter head 1 and is screwed into the threaded hole of the handle to fixedly connect the cutter head 1 and the handle.
[0021] The above embodiments are exemplary. Their purpose is to illustrate the technical concept and characteristics of the present invention so that those skilled in this field can understand the content of the present invention and implement it accordingly. It should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.
Claims
1. A modular reamer head, characterized in that: It includes a cutter head (1), the cutter head (1) is disc-shaped, the cutter head (1) is provided with a blade mounting groove (11) and a tool handle connection end (12), the blade mounting groove (11) and the tool handle connection end (12) are respectively arranged at both ends of the cutter head (1), and a hinge blade is installed in the blade mounting groove (11); the tool handle connection end (12) includes an end face (121), an embedded connection part (122) is provided on the end face (121), and a relief groove (1211) is provided on the end face (121); during use, the embedded connection part (122) is embedded into the tool handle, and the end face (121) abuts against one end of the tool handle.
2. The modular reamer head according to claim 1, wherein: The embedded connection part (122) is coaxially arranged with the cutter head (1), and the embedded connection part (122) is cylindrical.
3. The modular reamer head according to claim 2, wherein: The side surface of the embedded connection part (122) is an inclined surface, and the side surface of the embedded connection part (122) extends from the top surface of the embedded connection part (122) to the end face (121).
4. The modular reamer head according to claim 1, characterized in that: The end face (121) includes a relief groove (1211) and a connection surface (1212), the connection surface (1212) is higher than the bottom surface of the relief groove (1211), the relief groove (1211) is arranged around the outer periphery of the connection part (122), and the connection surface (1212) is arranged on the outer periphery of the relief groove (1211).
5. The modular reamer head according to claim 4, characterized in that: The width of the connection surface (1212) is 3 - 5 mm.
6. The modular reamer head according to claim 4, wherein: The depth of the relief groove (1211) is 0.5 mm.
7. The modular reamer head according to claim 1, wherein: There are two or more blade mounting grooves (11) arranged around the axis of the cutter head (1).
8. The modular reamer head according to claim 1, wherein: A through hole is arranged along the axis of the cutter head (1).