A replaceable chamfer module milling tool
By designing milling cutters with replaceable chamfering modules, the problem of cost waste caused by chamfer damage or replacement needs is solved. This enables quick assembly and disassembly of the chamfering modules and improves torque bearing capacity, thereby enhancing the applicability and stability of the cutters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU BAOKE PRECISION TOOLS CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-07
AI Technical Summary
When the chamfering part of the existing milling cutter is damaged, the entire tool needs to be scrapped or a different chamfering tool needs to be replaced, which increases costs. In addition, the existing one-piece chamfering part design is not flexible.
A milling cutter with a replaceable chamfering module was designed. The chamfering module can be quickly disassembled and replaced through a combination structure of a retaining ring, a locking block, a collar, and a threaded part, which enhances the applicability of the cutter. The torque bearing capacity during rotation is improved through a reinforcement mechanism.
It enables quick replacement of chamfering modules and efficient applicability of cutting tools, reduces replacement costs, avoids waste caused by chamfering damage or replacement needs, and improves the practicality and stability of cutting tools.
Smart Images

Figure CN224463773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milling cutter technology, specifically a milling cutter with a replaceable chamfering module. Background Technology
[0002] Milling cutters are cutting tools used in CNC machining to machine grooves of various shapes on workpieces. They are widely used in industries such as machinery manufacturing, mold making, and aerospace. Their core function is to remove material through rotary cutting to form grooves of specific dimensions, shapes, and precision. During the machining process, it may be necessary to chamfer certain workpieces, so some milling cutters are equipped with chamfered sections to facilitate machining.
[0003] In the field of milling cutters, existing milling cutters and chamfering parts are integrated. However, in actual use, if the chamfering part is damaged, the whole thing needs to be scrapped, which is wasteful. Alternatively, different milling cutters need to be replaced with milling cutters with corresponding chamfers, which requires a lot of tools and increases costs. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] Given the aforementioned or existing technologies, if the chamfered part is damaged, it is wasteful to scrap the entire part, or different chamfers require the replacement of milling cutters with corresponding chamfers, which requires a lot of tools and increases costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A milling cutter with a replaceable chamfering module, characterized in that it comprises:
[0008] A tool holder, wherein a connecting rod is fixedly installed at the bottom end of the tool holder, and a milling cutter is fixedly installed below the connecting rod, and a disassembly and assembly mechanism is provided on the outside of the connecting rod;
[0009] The disassembly and assembly mechanism includes a fixing ring, which is slidably connected to the outer wall of the tool bar. A fixing block is fixedly installed at the bottom end of the fixing ring. A chamfering module is embedded at the bottom end of the fixing block, and a sleeve hole is opened inside the fixing block. A locking block is fixedly installed inside the fixing ring, and a locking groove is opened inside the tool bar at the position corresponding to the locking block.
[0010] As a further improvement of this utility model: a collar is slidably connected above the fixing ring on the outer wall of the tool holder, and the inner wall of the collar is fitted with a threaded portion.
[0011] As a further embodiment of this utility model: the fixing block and the tool holder form a sliding structure, and the tool holder and the chamfering module form a sliding structure.
[0012] As a further improvement of this utility model: the outer dimensions of the locking block and the outer dimensions of the locking groove match, and the locking groove and the locking block form a sliding structure.
[0013] As a further improvement of this utility model: the collar is threadedly connected to the tool holder through a threaded portion, and the collar and the fixed ring are tightly fitted together.
[0014] As a further improvement of this utility model: the inside of the tool holder is provided with a reinforcing mechanism, the reinforcing mechanism includes an insertion block, the insertion block is slidably connected inside the engagement groove, and a connecting ring is fixedly installed on the outer wall of the insertion block.
[0015] As a further improvement of this utility model: a limiting block is fixedly installed at the bottom end of the connecting ring, and an abutment groove is provided below the threaded part of the inner wall of the collar.
[0016] As a further improvement of this utility model: the connecting ring extends through the interior of the collar, and the collar and the connecting ring are tightly fitted together.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This utility model, through the design of a fixing ring, a locking block, a sleeve hole, a locking groove, a collar, and a threaded part, enables the chamfering module to be quickly assembled and disassembled, allowing for replacement when damaged or with different machining textures. This improves the applicability and versatility of the entire milling cutter, requiring only a suitable number of chamfering modules and avoiding the need for a large number of different chamfers, thus saving costs.
[0019] This utility model, through the design of the insertion block, connecting ring, limiting block and abutment groove, can fill the engagement groove under the abutment of the same collar, improve the torque bearing capacity generated during rotation, avoid the engagement groove from being easily twisted and deformed under force when unsupported, and improve the overall practicality of the tool. Attached Figure Description
[0020] Figure 1 A schematic diagram of the overall structure of a milling cutter with a replaceable chamfering module;
[0021] Figure 2 A schematic diagram of the connecting rod structure of a milling cutter with a replaceable chamfering module;
[0022] Figure 3 A schematic diagram of the locking block structure of a milling cutter with a replaceable chamfering module;
[0023] Figure 4 A schematic diagram of the threaded section structure of a milling cutter with a replaceable chamfering module;
[0024] Figure 5 This is a schematic diagram of the connecting ring structure of a milling cutter with a replaceable chamfering module.
[0025] In the diagram: 1. Tool holder; 2. Connecting rod; 3. Milling cutter section; 4. Assembly / disassembly mechanism; 401. Fixing ring; 402. Fixing block; 403. Chamfering module; 404. Engaging block; 405. Sleeve hole; 406. Engaging groove; 407. Collar; 408. Threaded section; 5. Reinforcing mechanism; 501. Insertion block; 502. Connecting ring; 503. Limiting block; 504. Abutment groove. Detailed Implementation
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example 1
[0029] Please see Figures 1 to 4 This is the first embodiment of the present utility model. This embodiment provides a milling cutter with a replaceable chamfering module, including: a cutter bar 1, a connecting rod 2 fixedly installed at the bottom end of the cutter bar 1, a milling cutter part 3 fixedly installed below the connecting rod 2, and a disassembly and assembly mechanism 4 provided on the outside of the connecting rod 2;
[0030] The disassembly and assembly mechanism 4 includes a fixing ring 401, which is slidably connected to the outer wall of the tool bar 1. A fixing block 402 is fixedly installed at the bottom end of the fixing ring 401. A chamfering module 403 is embedded at the bottom end of the fixing block 402. A sleeve hole 405 is opened inside the fixing block 402. A locking block 404 is fixedly installed inside the fixing ring 401. A locking groove 406 is opened inside the tool bar 1 at the position corresponding to the locking block 404.
[0031] Specifically, a collar 407 is slidably connected above the fixing ring 401 on the outer wall of the tool holder 1, and a threaded portion 408 is embedded in the inner wall of the collar 407.
[0032] Furthermore, the collar 407 can abut against the fixed ring 401 to achieve a limiting effect, thereby replacing the chamfer module 403.
[0033] Specifically, the fixed block 402 and the tool holder 1 form a sliding structure, and the tool holder 1 and the chamfering module 403 form a sliding structure.
[0034] Furthermore, the fixing block 402 and the chamfering module 403 slide along the tool bar 1 through the sleeve hole 405, which facilitates disassembly and replacement.
[0035] Specifically, the outer dimensions of the locking block 404 and the outer dimensions of the locking groove 406 match, and the locking groove 406 and the locking block 404 form a sliding structure.
[0036] Furthermore, by engaging the engaging block 404 through the engaging slot 406, the chamfering module 403 can be driven to rotate when the tool holder 1 rotates, thereby achieving a chamfering effect on the workpiece.
[0037] Specifically, the collar 407 is threaded to the tool holder 1 via the threaded part 408, and the collar 407 is tightly fitted with the fixed ring 401.
[0038] Furthermore, the collar 407 is threadedly connected to the tool holder 1 and is stopped by the clamping retaining ring 401, making the entire chamfering module 403 easy to assemble and disassemble quickly.
[0039] In use, the tool holder 1, connecting rod 2 and milling cutter 3 are integrated. The locking block 404 in the fixing ring 401 slides along the locking groove 406 on the tool holder 1, thereby driving the fixing block 402 and the chamfering module 403 to slide along the tool holder 1 through the sleeve hole 405 to the position of the connecting rod 2 and fit against one side of the milling cutter 3. They are then threadedly connected to the tool holder 1 through the collar 407 and the threaded part 408, thereby pressing the fixing ring 401 and facilitating the disassembly and assembly of the chamfering module 403.
[0040] In summary, by adjusting and disassembling the collar 407, the chamfering module 403 can be quickly disassembled and replaced. When the chamfering module 403 is damaged or needs to be replaced with a different texture, it can be quickly disassembled and installed, improving the overall applicability and flexibility. The engagement of the locking block 404 with the locking groove 406 can maintain the rotational torque force on the chamfering module 403 during rotation, while avoiding the generation of lateral force during rotation that could cause the collar 407 to loosen. Example 2
[0041] Please see Figure 1 , Figure 4 and Figure 5 This is the second embodiment of the present invention, which provides an improved design for a milling cutter with a replaceable chamfering module.
[0042] Specifically, the tool holder 1 is provided with a reinforcing mechanism 5, which includes a through block 501. The through block 501 is slidably connected inside the engagement groove 406, and a connecting ring 502 is fixedly installed on the outer wall of the through block 501.
[0043] Furthermore, by sliding the insert block 501 along the engagement groove 406 and filling the engagement groove 406, the torque bearing capacity during the entire rotation process of the tool holder 1 can be improved, and the situation where the engagement groove 406 is too empty and easily twisted due to insufficient strength can be avoided.
[0044] Specifically, a limiting block 503 is fixedly installed at the bottom of the connecting ring 502, and an abutment groove 504 is provided below the threaded part 408 on the inner wall of the collar 407.
[0045] Furthermore, by inserting the limiting block 503 into the fixing ring 401, the stability of the connection between them can be further improved.
[0046] Specifically, the connecting ring 502 extends into the interior of the collar 407, and the collar 407 and the connecting ring 502 fit tightly together.
[0047] Furthermore, by matching the outer dimensions of the contact groove 504 with those of the connecting ring 502, the connecting ring 502 can be contacted and limited, thereby preventing the insert block 501 from becoming loose.
[0048] During use, before the collar 407 is fitted onto the tool holder 1, the inserting block 501 is inserted into the engaging groove 406 to allow the connecting ring 502 to abut against the fixing ring 401. The limiting block 503 enhances the limiting effect. After fitting, the abutting groove 504 inside the collar 407 abuts against and presses against the connecting ring 502 to prevent loosening. The inserting block 501 engages with the engaging groove 406, improving the torque bearing capacity of the entire tool.
[0049] In summary, with the cooperation of the insert block 501 and the connecting ring 502, they can be pressed and limited by the same collar 407, so that the insert block 501 fills and engages with the engagement groove 406. When the tool rotates, they resist each other to increase the torque bearing capacity and avoid the situation where the engagement groove 406 is hollow and easily twisted or deformed under force.
[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0052] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A milling cutter with a replaceable chamfering module, characterized in that: include: A tool holder (1) is fixedly installed at the bottom end of the tool holder (1), and a milling cutter part (3) is fixedly installed below the connecting rod (2). A disassembly and assembly mechanism (4) is provided on the outside of the connecting rod (2). The disassembly and assembly mechanism (4) includes a fixing ring (401), which is slidably connected to the outer wall of the tool bar (1). A fixing block (402) is fixedly installed at the bottom end of the fixing ring (401). A chamfering module (403) is embedded at the bottom end of the fixing block (402). A sleeve hole (405) is opened inside the fixing block (402). A locking block (404) is fixedly installed inside the fixing ring (401). A locking groove (406) is opened inside the tool bar (1) at the position corresponding to the locking block (404).
2. The milling cutter with a replaceable chamfering module according to claim 1, characterized in that: A collar (407) is slidably connected above the outer wall fixing ring (401) of the tool holder (1), and a threaded part (408) is embedded in the inner wall of the collar (407).
3. A milling cutter with a replaceable chamfering module according to claim 1, characterized in that: The fixed block (402) and the tool bar (1) form a sliding structure, and the tool bar (1) and the chamfering module (403) form a sliding structure.
4. A milling cutter with a replaceable chamfering module according to claim 1, characterized in that: The outer dimensions of the locking block (404) and the outer dimensions of the locking groove (406) are consistent, and the locking groove (406) and the locking block (404) form a sliding structure.
5. A milling cutter with a replaceable chamfering module according to claim 2, characterized in that: The collar (407) is threadedly connected to the tool holder (1) via a threaded portion (408), and the collar (407) is tightly fitted with the fixed ring (401).
6. A milling cutter with a replaceable chamfering module according to claim 1, characterized in that: The tool holder (1) is provided with a reinforcing mechanism (5), which includes an insertion block (501). The insertion block (501) is slidably connected to the inside of the engagement groove (406), and a connecting ring (502) is fixedly installed on the outer wall of the insertion block (501).
7. A milling cutter with a replaceable chamfering module according to claim 5, characterized in that: A limiting block (503) is fixedly installed at the bottom of the connecting ring (502), and an abutment groove (504) is provided below the threaded part (408) on the inner wall of the collar (407).
8. A milling cutter with a replaceable chamfering module according to claim 6, characterized in that: The connecting ring (502) extends into the interior of the collar (407), and the collar (407) and the connecting ring (502) fit tightly together.