Wide-angle layered ball-end milling cutter
By adopting the structure of isosceles trapezoidal grooves and blades and anti-roll sleeve design in the ball head milling cutter, the problem of blade shaking is solved, improving machining stability and preventing the tool body from falling and damage.
Patent Information
- Application Number
- CN202421132285.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-22
AI Technical Summary
During the processing process of existing ball head milling cutters, due to the design of rectangular grooves, the blade is prone to shake and offset due to gravity, affecting stability.
A wide-angle layered ball head milling cutter is designed, using isosceles trapezoidal grooves and cutting edge structure, fixing the cutting edge by threaded connection and fastening screws, and combining anti-roll sleeves to prevent the tool body from rolling, improving stability.
Effectively fix the blade, avoid shaking, improve rotation stability, and prevent the knife body from falling and damage when not in use.
Smart Images
Figure CN222268785U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of milling cutters, in particular to a wide-angle layered ball-end milling cutter. Background Art
[0002] A ball end mill is a cutting tool used for metal processing. It is named because its cutter head is spherical. Ball end mills are usually used to process parts with curved surfaces or complex shapes, such as grooves, circular holes, and curved surfaces. Due to its spherical cutter head design, ball end mills can achieve smoother cutting during the processing process, and can reduce cutting force to a certain extent, reduce the roughness of the workpiece surface, and improve processing accuracy. There are at least the following disadvantages in the use of existing ball end mills: During the use of existing ball end mills, a groove that matches the blade is often opened at the cutter head to complete the installation of the blade, but the grooves opened are often rectangular structures. When the blade is rotated for processing, it is affected by gravity, which easily causes the blade to shake and deviate in the groove, affecting stability. Therefore, we have launched a wide-angle layered ball end mill. Utility Model Content
[0003] The main purpose of the utility model is to provide a wide-angle layered ball-end milling cutter, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A wide-angle layered ball end milling cutter comprises a cutter body, an outer surface of which is movably connected with an anti-roll sleeve, a front end of which is provided with three notches, and inner walls of the three notches are all movably connected with blades.
[0006] Preferably, the inner walls of the three notches are each provided with an isosceles trapezoidal groove, the inner walls of the three isosceles trapezoidal grooves are each provided with a threaded hole, the three notches are equidistantly distributed, and the three isosceles trapezoidal grooves are equidistantly distributed.
[0007] Preferably, the three blades are all isosceles trapezoidal structures, the three blades extend out of the three slots, the three blades are provided with mounting holes, and the three mounting holes are movably connected with fastening screws.
[0008] Preferably, the three fastening screws pass through the three blades and are threadedly connected to the three threaded holes respectively.
[0009] Preferably, the three blades are matched with three isosceles trapezoidal grooves.
[0010] Preferably, the four corners of the outer surface of the anti-roll sleeve are provided with inclined portions.
[0011] Preferably, the interior of the anti-roll sleeve is a hollow structure.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. By opening an isosceles trapezoidal groove in the notch, since the isosceles trapezoidal groove is an isosceles trapezoidal structure and the blade is adapted to the isosceles trapezoidal groove, after the blade is inserted into the isosceles trapezoidal groove, the isosceles trapezoidal groove can fix the blade, thereby improving the stability of the blade during rotation and preventing the blade from deflecting and shaking in the notch;
[0014] 2. By setting an anti-roll sleeve and sleeve it on the outer surface of the cutter body, when the cutter body is not in use, the anti-roll sleeve can prevent the cutter body from rolling and displacement, and prevent the cutter body from falling and causing damage to the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a wide-angle layered ball-end milling cutter of the utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of a cutter body of a wide-angle layered ball-end milling cutter of the utility model;
[0017] Figure 3 It is a schematic diagram of the overall structure of the blade of a wide-angle layered ball-end milling cutter of the utility model;
[0018] Figure 4 The utility model is a schematic diagram of the overall structure of an anti-roll sleeve of a wide-angle layered ball-end milling cutter.
[0019] In the figure: 1, knife body; 2, notch; 3, blade; 4, anti-roll sleeve; 21, isosceles trapezoidal groove; 22, threaded hole; 31, fastening screw; 32, mounting hole; 41, inclined portion. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] See also Figure 1-4 , the utility model provides a technical solution:
[0024] A wide-angle layered ball end milling cutter comprises a cutter body 1, an anti-roll sleeve 4 is inserted and movably connected to the outer surface of the cutter body 1, three notches 2 are opened at the front end of the cutter body 1, and blades 3 are inserted and movably connected to the inner walls of the three notches 2.
[0025] In this embodiment, the inner walls of the three slots 2 are all provided with isosceles trapezoidal grooves 21, the inner walls of the three isosceles trapezoidal grooves 21 are all provided with threaded holes 22, the three slots 2 are equidistantly distributed, and the three isosceles trapezoidal grooves 21 are equidistantly distributed; the three blades 3 are all isosceles trapezoidal structures, the three blades 3 extend out of the three slots 2, the three blades 3 are all provided with mounting holes 32, and the three mounting holes 32 are all movably connected with fastening screws 31; the three fastening screws 31 pass through the three blades 3 and are threadedly connected with the three threaded holes 22 respectively; the three blades 3 are adapted to the three isosceles trapezoidal grooves 21; the four corners of the outer surface of the anti-roll sleeve 4 are provided with inclined portions 41; the interior of the anti-roll sleeve 4 is a hollow structure.
[0026] It should be noted that the utility model is a wide-angle layered ball-end milling cutter. During use, an isosceles trapezoidal groove 21 is opened in the notch 2. Since the isosceles trapezoidal groove 21 is an isosceles trapezoidal structure and the blade 3 is compatible with the isosceles trapezoidal groove 21, when the blade 3 needs to be installed, the blade 3 is inserted into the isosceles trapezoidal groove 21. At this time, the isosceles trapezoidal groove 21 fixes the blade 3 in position, and the blade 3 is fixed with a fastening screw 31. Under the action of the fastening screw 31 and the isosceles trapezoidal groove 21, the stability of the blade 3 during rotation is improved, and the blade 3 is prevented from shifting and shaking in the notch 2. After use, the anti-slip sleeve 4 is sleeved on the outer surface of the cutter body 1. When the cutter body 1 is not in use, under the action of the anti-slip sleeve 4, the cutter body 1 can be prevented from rolling and displacement, and the cutter body 1 can be prevented from falling and causing damage to the cutter head.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A wide-angle layered ball-end milling cutter, comprising a cutter body (1), characterized in that: The outer surface of the blade body (1) is interlaced with an anti-roll sleeve (4) in a movable connection, the front end of the blade body (1) is provided with three notches (2), and the inner walls of the three notches (2) are interlaced with blades (3) in a movable connection; The inner walls of the three notches (2) are all provided with isosceles trapezoidal grooves (21), the inner walls of the three isosceles trapezoidal grooves (21) are all provided with threaded holes (22), the three notches (2) are distributed at equal distances, and the three isosceles trapezoidal grooves (21) are distributed at equal distances.
2. A wide-angle layered ball end milling cutter according to claim 1, characterized in that: The three blades (3) are all isosceles trapezoidal structures. The three blades (3) extend out of the three slots (2). The three blades (3) are all provided with mounting holes (32). The three mounting holes (32) are all inserted with fastening screws (31) for active connection.
3. A wide-angle layered ball end milling cutter according to claim 2, characterized in that: The three fastening screws (31) pass through the three blades (3) respectively and are threadedly connected to the three threaded holes (22).
4. The wide-angle layered ball end milling cutter according to claim 1, characterized in that: The three blades (3) are matched with three isosceles trapezoidal grooves (21).
5. The wide-angle layered ball end milling cutter according to claim 1, characterized in that: The four corners of the outer surface of the anti-roll sleeve (4) are all provided with inclined portions (41).
6. The wide-angle layered ball end milling cutter according to claim 1, characterized in that: The interior of the anti-roll sleeve (4) is a hollow structure.