Auxiliary clamping tool for milling cutter
By designing a milling cutter auxiliary clamping fixture, which utilizes a milling cutter position adjustment mechanism and a clamping part, the problem of operators being cut during milling cutter clamping is solved. This enables safe and flexible milling cutter installation and replacement, adapts to the needs of milling cutters of different sizes and models, and provides stable placement.
Patent Information
- Application Number
- CN202520605156.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-02
AI Technical Summary
When milling cutters are clamped, operators are easily cut by the cutting edge when holding the cutter, and existing technologies are unable to solve this problem.
Design an auxiliary clamping fixture, including a milling cutter position adjustment mechanism, a handle body, and a clamping part. Utilizing multiple clamping teeth and a fastening ring, the clamping part, which can expand and spring back radially, is made of elastic material. The fastening ring 5 retracts the clamping teeth towards the clamping cavity, providing clamping force and preventing the milling cutter from falling off.
By incorporating a clamping part that expands radially and springs back, the cutting edge of the milling cutter is placed and confined within the clamping cavity formed by the clamping part, avoiding direct contact with the cutting edge. Operators can pick up, place, install, and replace the milling cutter by gripping the handle body and the cutter holder. It is suitable for milling cutters of different sizes and models, has a wide range of applications, and can be placed stably when not in use.
Smart Images
Figure CN223916758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling technology, and in particular to an auxiliary clamping fixture for milling cutters. Background Technology
[0002] Milling cutters are common tools in milling operations, typically used in conjunction with equipment such as machining centers. When mounting a milling cutter on a machining center, the shank needs to be inserted into the machining center's shank interface to complete the installation. During this process, the operator needs to hold the cutting edge of the milling cutter and perform actions such as gripping and moving it. However, because the cutting edge of a milling cutter is very sharp, operators may suffer cuts or other injuries while holding it. Utility Model Content
[0003] This utility model aims to solve the above problems and provides an auxiliary clamping fixture for milling cutters, the technical solution of which is as follows:
[0004] A milling cutter auxiliary clamping fixture includes a milling cutter position adjustment mechanism, a handle body, and a clamping part arranged coaxially. The handle body includes a hand-held part, a suspension part, and a clamping seat connected in sequence. The clamping part includes multiple clamping teeth. One end of each clamping tooth is fixedly connected to the clamping seat, and the other end extends axially away from the handle body. The multiple clamping teeth are evenly distributed circumferentially, and there is a gap between adjacent clamping teeth. The multiple clamping teeth enclose a cylindrical clamping cavity, and the clamping cavity contains the cutting edge of the milling cutter to be clamped. The milling cutter position adjustment mechanism is disposed through the handle body and can move axially relative to the handle body. One end of the milling cutter position adjustment mechanism is located in the clamping cavity and abuts against the end of the cutting edge of the milling cutter to be clamped.
[0005] Based on the above scheme, the milling cutter position adjustment mechanism includes a helical part and a helical rod fixedly connected along the axial direction. The helical rod passes through the handle body and is threadedly connected to the handle body. The diameter of the helical part is larger than the diameter of the helical rod.
[0006] Based on the above scheme, the outer surface of the spiral part and the handle part is provided with straight knurling.
[0007] Preferably, the clamping part is fitted with a fastening ring, which is made of an elastic material, and the fastening ring retracts the clamping teeth toward the clamping cavity.
[0008] Based on the above scheme, a fastening ring mounting groove is provided on the outer surface of the clamping teeth, and the fastening ring is engaged in the fastening ring mounting groove.
[0009] Preferably, there are multiple fastening rings, which are distributed along the axial direction of the clamping portion.
[0010] Preferably, the clamping teeth are provided with an elastic groove on the side near the clamping seat. The elastic groove is arc-shaped and is located on the inner side of the clamping teeth, and is formed by radial outward indentation.
[0011] Preferably, a guide angle is provided at the end of the clamping part away from the clamping seat. The guide angle is located inside the end of the clamping teeth. The guide angle has an inclined surface structure, and the inclined surface gradually approaches the outer edge of the clamping teeth along the direction away from the clamping seat.
[0012] Preferably, it further includes a placement seat, which includes a support part and a fixing part fixedly connected. The support part has an incomplete annular structure with the annular opening facing upwards. The suspension part of the handle body is engaged in the support part. The diameter of the suspension part is smaller than the diameter of the hand-held part or the clamping seat.
[0013] Preferably, the handle body and the clamping part are made of polyoxymethylene material.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. By setting a clamping part that can expand and spring back in the radial direction, the cutting edge of the milling cutter is placed and confined in the clamping cavity formed by the clamping part, thereby exposing the shank of the milling cutter outside the clamping part. The operator can complete the picking, placing, installation and replacement of the milling cutter by holding the handle body and the shank, avoiding the risk of injury caused by direct contact with the cutting edge.
[0016] 2. The installation depth of the milling cutter cutting edge in the clamping cavity can be adjusted by the milling cutter position adjustment mechanism to accommodate milling cutters of different sizes and models, thus having a wide range of applications;
[0017] 3. A suspension unit and a matching mounting base are provided to facilitate stable placement of the tooling when it is not in operation. Attached Figure Description
[0018] Figure 1 : A schematic diagram of the structure of this utility model;
[0019] Figure 2 : A cross-sectional view of the structure of this utility model;
[0020] Figure 3 : Schematic diagram of the milling cutter position adjustment mechanism of this utility model;
[0021] Figure 4 : Schematic diagram of the placement base structure of this utility model. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] In the description of this utility model, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and "inner," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0026] like Figure 1 and Figure 2As shown, a milling cutter auxiliary clamping fixture includes a milling cutter position adjustment mechanism, a handle body, and a clamping part 3 arranged coaxially. The handle body includes a hand-held part 21, a suspension part 22, and a clamping seat 23 connected in sequence. The clamping part 3 includes multiple clamping teeth. One end of each clamping tooth is fixedly connected to the clamping seat 23, and the other end extends axially away from the handle body. The multiple clamping teeth are evenly distributed circumferentially (the number of clamping teeth can be 6), and there is a gap between adjacent clamping teeth. The multiple clamping teeth enclose to form a cylindrical clamping cavity 8. The clamping cavity 8 contains the cutting edge of the milling cutter to be clamped. The operator can hold the handle of the milling cutter and insert the cutting edge of the milling cutter into the opening end of the clamping cavity 8. Each clamping tooth uses the elastic deformation of the material itself to complete the wrapping clamping of the cutting edge, preventing the cutting edge from being exposed and causing injury to personnel.
[0027] The handle body and clamping part 3 are made of polyoxymethylene material, which gives it good elasticity, making it easy to install and remove the milling cutter. At the same time, the softness of the plastic material protects the cutting edge structure and prevents damage to the milling cutter.
[0028] The milling cutter position adjustment mechanism is installed through the handle body and can move axially relative to the handle body. One end of the milling cutter position adjustment mechanism is located in the clamping cavity 8 and abuts against the end of the cutting edge of the milling cutter to be clamped. By adjusting the position of the end of the milling cutter position adjustment mechanism in the clamping cavity 8, the depth of the cutting edge of the milling cutter entering the clamping cavity 8 and the exposed length of the shank are adjusted, thereby adapting to the clamping requirements of milling cutters of different sizes and models. Specifically, as shown in the figure... Figure 3 As shown, the milling cutter position adjustment mechanism includes a helical part 11 and a helical rod 12 fixedly connected along the axial direction. The helical rod 12 passes through the handle body and is threadedly connected to the handle body. The diameter of the helical part 11 is larger than the diameter of the helical rod 12. When the operator holds the handgrip 21, rotating the helical part 11 adjusts the axial position of the helical rod 12. Preferably, the outer surfaces of the helical part 11 and the handgrip 21 are provided with straight-knurled patterns to increase the friction of the surfaces of the helical part 11 and the handgrip 21, thereby improving the anti-slip effect and operating comfort.
[0029] Preferably, a fastening ring 5 is fitted over the clamping part 3. The fastening ring 5 is made of elastic material. The fastening ring 5 retracts the clamping teeth towards the clamping cavity 8 to increase the clamping force of the clamping teeth on the cutting edge, further preventing the milling cutter from falling off during handling and clamping. The fastening ring 5 can be replaced and adjusted according to the specific milling cutter size and other clamping needs to change the clamping force it provides. A fastening ring mounting groove 31 is provided on the outer surface of the clamping teeth. The fastening ring 5 is engaged in the fastening ring mounting groove 31 to prevent the fastening ring 5 from falling off. There are multiple fastening rings 5, which are distributed along the axial direction of the clamping part to improve the clamping effect.
[0030] like Figure 2 As shown, an elastic groove 6 is provided on the side of the clamping tooth near the clamping seat 23. The elastic groove 6 is arc-shaped. The elastic groove 5 is provided on the inner side of the clamping tooth and is formed by radial outward indentation to appropriately thin the root of the clamping tooth, increase the range of angle change of the clamping tooth, facilitate the insertion of the milling cutter cutting edge into the clamping cavity 8, and increase the clamping force of the clamping tooth.
[0031] A guide angle 7 is provided at the end of the clamping part away from the clamping seat 23. The guide angle 7 is located inside the end of the clamping teeth and has an inclined surface structure. The inclined surface gradually approaches the outer edge of the clamping teeth in the direction away from the clamping seat 23, thereby forming an outwardly expanding opening structure at the end of the clamping cavity 8. This provides an automatic centering function when the cutting edge is inserted into the clamping cavity 8, reducing deviations during clamping and facilitating operation. Preferably, the angle of the inclined surface at the guide angle 7 can be 15°.
[0032] When clamping a milling cutter, the operator holds the handle of the cutter, aligns the cutting edge with the clamping cavity 8, and inserts it into the clamping cavity 8 under the guidance of the guide angle 7 until it abuts against the end of the helical rod 12. The clamping teeth and the retaining ring 5 provide positioning and clamping force for the cutting edge of the milling cutter, while the shank of the milling cutter is exposed outside the clamping cavity for easy subsequent clamping. To adjust the insertion length of the cutting edge and the exposure length of the shank, the axial position of the helical rod 12 is adjusted by rotating the helical part for fine-tuning.
[0033] like Figure 4 As shown, it also includes a placement seat, which includes a support part 41 and a fixing part 42 that are fixedly connected. The support part 41 has a partially annular structure with the annular opening facing upwards. The suspension part 22 of the handle body is engaged in the support part 41. The diameter of the suspension part 22 is smaller than the diameter of the hand-held part 21 or the clamping seat 23, so that the suspension part 22 can be stably engaged in the support part 41, allowing the tooling to be placed stably when not in operation.
[0034] The above solution is compatible with various milling cutters such as spiral groove milling cutters and straight groove milling cutters. The compatible milling cutter type should be straight shank.
[0035] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.
Claims
1. A milling cutter auxiliary clamping fixture, characterized in that, The device includes a milling cutter position adjustment mechanism, a handle body, and a clamping part (3) arranged coaxially. The handle body includes a hand-held part (21), a suspension part (22), and a clamping seat (23) connected in sequence. The clamping part (3) includes multiple clamping teeth. One end of each clamping tooth is fixedly connected to the clamping seat (23), and the other end extends away from the handle body along the axial direction of the handle body. The multiple clamping teeth are evenly distributed circumferentially, and there is a gap between adjacent clamping teeth. The multiple clamping teeth surround to form a cylindrical clamping cavity (8). The clamping cavity (8) contains the cutting edge of the milling cutter to be clamped. The milling cutter position adjustment mechanism is arranged through the handle body and can move axially relative to the handle body. One end of the milling cutter position adjustment mechanism is located in the clamping cavity (8) and abuts against the end of the cutting edge of the milling cutter to be clamped.
2. The milling cutter auxiliary clamping fixture according to claim 1, characterized in that, The milling cutter position adjustment mechanism includes a helical part (11) and a helical rod (12) fixedly connected along the axial direction. The helical rod (12) is disposed through the handle body and is threadedly connected to the handle body. The diameter of the helical part (11) is larger than the diameter of the helical rod (12).
3. The milling cutter auxiliary clamping fixture according to claim 2, characterized in that, The outer surfaces of the spiral part (11) and the hand-held part (21) are provided with straight knurling.
4. The milling cutter auxiliary clamping fixture according to claim 1, characterized in that, The clamping part (3) is fitted with a fastening ring (5), which is made of elastic material. The fastening ring (5) retracts the clamping teeth toward the clamping cavity (8).
5. The milling cutter auxiliary clamping fixture according to claim 4, characterized in that, The outer surface of the clamping teeth is provided with a fastening ring mounting groove (31), and the fastening ring (5) is engaged in the fastening ring mounting groove (31).
6. The milling cutter auxiliary clamping fixture according to claim 4, characterized in that, The number of fastening rings (5) is multiple, and they are distributed along the axial direction of the clamping part.
7. The milling cutter auxiliary clamping fixture according to claim 1, characterized in that, An elastic groove (6) is provided on the side of the clamping tooth near the clamping seat (23). The elastic groove (6) is arc-shaped and is located on the inner side of the clamping tooth, and is formed by radial outward indentation.
8. The milling cutter auxiliary clamping fixture according to claim 1, characterized in that, The clamping part is provided with a guide angle (7) at one end away from the clamping seat (23). The guide angle (7) is located on the inner side of the end of the clamping tooth. The guide angle (7) is a slope structure, and the slope gradually approaches the outer edge of the clamping tooth along the direction away from the clamping seat (23).
9. The milling cutter auxiliary clamping fixture according to claim 1, characterized in that, It also includes a placement seat, which includes a support part (41) and a fixing part (42) that are fixedly connected. The support part (41) is an incomplete ring structure with the ring opening facing upward. The suspension part (22) of the handle body is engaged in the support part (41). The diameter of the suspension part (22) is smaller than the diameter of the hand-held part (21) or the clamping seat (23).
10. A milling cutter auxiliary clamping fixture according to claim 1, characterized in that, The handle body and clamping part (3) are made of polyoxymethylene material.