Ball-end milling cutter for milling surface of false tooth
By designing a multi-flute structure and a specific tilt angle for the ball end mill, and combining it with carbide material, the problems of low cutting efficiency, low precision, and poor chip removal of existing end mills in denture machining have been solved, achieving efficient and precise denture surface machining.
Patent Information
- Application Number
- CN202423222259.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing milling cutter tips are pointed, which easily leave round holes during milling, resulting in low cutting efficiency, low precision, and poor chip removal, thus affecting the processing quality and efficiency of dentures.
A ball end mill was designed, which adopts a combination structure of end face, top edge, side edge, ring edge and multiple flank faces. Combined with a specific tilt angle and carbide material, it enhances cutting efficiency and accuracy, and ensures smooth chip discharge through chip flute and chip removal groove design.
It improves the cutting efficiency and precision of denture surface machining, ensures smooth chip removal, extends tool life, and enhances machining quality and efficiency.
Smart Images
Figure CN223776091U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the milling cutter related technical field of milling, specifically relates to a ball head milling cutter for false tooth surface milling processing. BACKGROUND
[0002] False tooth surface milling processing is a kind of milling technology is applied to the process of false tooth production, milling is fixed to blank, uses the milling cutter of high-speed rotation to go to the blank, cuts the shape and feature required, in false tooth production, milling technology is mainly used to make the support part of false tooth, by using special forming tool, the dimensional accuracy and surface quality of support can be ensured.
[0003] But the existing milling cutter head is pointed, and round holes are left in milling processing, and the milling cutter often has problems such as low cutting efficiency, low precision, poor chip removal, which affects the processing quality and efficiency of false tooth. UTILITY MODEL CONTENTS
[0004] The utility model discloses a ball head milling cutter for false tooth surface milling processing to solve the problem that the existing milling cutter head is pointed in the background art, and round holes are left in milling processing, and the milling cutter often has problems such as low cutting efficiency, low precision, poor chip removal, which affects the processing quality and efficiency of false tooth.
[0005] To achieve the above object, the utility model provides the following technical scheme: a ball head milling cutter for false tooth surface milling processing, including milling cutter main part;
[0006] The milling cutter head is arranged at the top position of the milling cutter main body, the cutter bar is arranged at the bottom position of the milling cutter main body, and the milling cutter head and the cutter bar are connected through the connecting portion.
[0007] The end portion is arranged at the top position of the milling cutter head, the top edge is arranged at the top position of the end portion, the side edge is arranged at the left and right sides of the top edge respectively, and the ring edge is arranged below the end portion.
[0008] Preferably, the first top edge rear surface is arranged at the rear side of the top edge and the side edge, the second top edge rear surface is arranged at the rear side of the first top edge rear surface, and the third top edge rear surface is arranged at the rear side of the second top edge rear surface.
[0009] Preferably, the cutter groove is arranged at the front side of the ring edge, the cutter edge is arranged at the rear side of the ring edge, the first ring edge rear surface is arranged at the outer side of the cutter edge, and the second ring edge rear surface is arranged at the rear side of the first ring edge rear surface.
[0010] Preferably, the chip groove is arranged at the bottom position of the second top edge rear surface, and the chip removal groove is arranged at the bottom position of the chip groove.
[0011] Preferably, the first top land relief angle is 15-20 degrees, the second top land relief angle is 25-30 degrees, and the third top land relief angle is 35-45 degrees.
[0012] Preferably, the first top land relief angle is 15-20 degrees, the second top land relief angle is 25-30 degrees, and the third top land relief angle is 35-45 degrees.
[0013] Preferably, the first top land relief angle is 15-20 degrees, the second top land relief angle is 25-30 degrees, and the third top land relief angle is 35-45 degrees.
[0014] Preferably, the first top land relief angle is 15-20 degrees, the second top land relief angle is 25-30 degrees, and the third top land relief angle is 35-45 degrees.
[0015] Compared with the prior art, the utility model provides a ball head milling cutter for false tooth surface milling processing, has the following beneficial effects:
[0016] 1. Through the setting of the end, the top land, the side land, the ring land, the first top land relief angle, the second top land relief angle and the third top land relief, the design of the top land and the side land at the top of the milling cutter head and the ring land below can improve the cutting efficiency, finely process the false tooth surface, the setting of multiple relief angles and the specific inclination angle can ensure the cutting precision and stability, the design of the chip groove and the chip flute can make the chip discharge smooth, avoid the influence of chip accumulation on the processing quality and efficiency, the milling cutter head is made of hard alloy, the hardness and wear resistance of the cutter are improved, the service life is prolonged, and the circular arc structure of the cutter groove and the cutter edge and the helix angle design of the ring land can further improve the cutting performance and chip removal effect.
[0017] 2. Through the setting of the cutter groove, the cutter edge, the first ring land relief angle and the second ring land relief angle, the design of the cutter groove at the front side of the ring land and the cutter edge at the back side, the cooperation of the first ring land relief angle and the second ring land relief angle with the specific inclination angle, the first ring land relief angle is 25-30 degrees, and the second ring land relief angle is 35-45 degrees, the cutting performance and chip removal effect can be further improved, the design of the cutter groove and the cutter edge can make the chip discharge more smoothly, avoid the influence of chip accumulation on the processing quality and efficiency, and the relief angle with the specific inclination angle can better control the cutting force and chip flow direction, improve the processing precision and stability. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of the utility model.
[0019] Figure 2 It is a structural schematic view of the milling cutter head in the utility model.
[0020] Figure 3 It is a structural schematic view of the end in the utility model.
[0021] Figure 4 It is a structure schematic view of the milling cutter head section in the utility model.
[0022] In the figure: 1, milling cutter main body; 2, connecting portion; 3, milling cutter head; 4, end portion; 5, top blade; 6, chip groove; 7, ring blade; 8, chip flute; 9, side blade; 10, first top blade relief; 11, second top blade relief; 12, third top blade relief; 13, knife edge; 14, first ring blade relief; 15, second ring blade relief; 16, tool slot; 17, tool bar. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range protected by the utility model.
[0024] The utility model provides a kind of ball head milling cutter for milling surface of false tooth as shown in Figures 1-4 It comprises milling cutter main body 1;
[0025] Milling cutter head 3 is arranged at the top of milling cutter main body 1, tool bar 17 is arranged at the bottom of milling cutter main body 1, and milling cutter head 3 is connected with tool bar 17 through connecting portion 2.
[0026] End portion 4 is arranged at the top of milling cutter head 3, top blade 5 is arranged at the top of end portion 4, side blade 9 is arranged at the left and right sides of top blade 5 respectively, and ring blade 7 is arranged below end portion 4.
[0027] First top blade relief 10 is arranged at the back of top blade 5 and side blade 9, second top blade relief 11 is arranged at the back of first top blade relief 10, and third top blade relief 12 is arranged at the back of second top blade relief 11.
[0028] Tool slot 16 is arranged at the front of ring blade 7, knife edge 13 is arranged at the back of ring blade 7, first ring blade relief 14 is arranged at the outside of knife edge 13, and second ring blade relief 15 is arranged at the back of first ring blade relief 14.
[0029] Chip groove 6 is arranged at the bottom of second top blade relief 11, and chip flute 8 is arranged at the bottom of chip groove 6.
[0030] The inclination angle of first top blade relief 10 is 15-20 degrees, the inclination angle of second top blade relief 11 is 25-30 degrees, and the inclination angle of third top blade relief 12 is 35-45 degrees.
[0031] The first annular blade relief 14 has an inclination angle of 8-12 degrees, and the second annular blade relief 15 has an inclination angle of 25-30 degrees.
[0032] The spiral angle of the annular blade 7 is 35-40 degrees, and the top blade 5 is a parallel structure.
[0033] The milling cutter head 3 is made of hard alloy, and the tool groove 16 and the tool edge 13 are arc-shaped structures.
[0034] In this embodiment, the specific implementation steps of the ball head milling cutter for milling the surface of a denture are as follows: first, the cutter bar 17 of the ball head milling cutter is installed on the denture processing equipment to ensure firm connection, the processing equipment is started, the milling cutter body 1 rotates with the operation of the equipment, the top blade 5, the side blade 9 on the top of the milling cutter head 3, and the annular blade 7 below begin to cut the surface of the denture, and in the cutting process, the chips enter the chip groove 8 and are smoothly discharged through the chip groove 6 at the bottom of the second top blade relief 11. The first top blade relief 10, the second top blade relief 11, the third top blade relief 12, the first annular blade relief 14, and the second annular blade relief 15 with different inclination angles ensure cutting accuracy and stability. During the processing, the milling cutter head 3 made of hard alloy can continuously and efficiently cut due to its high hardness and wear resistance. At the same time, the arc-shaped structure of the tool groove 16 and the tool edge 13 and the spiral angle design of the annular blade 7 further optimize the cutting performance and chip removal effect, ensuring the quality and efficiency of the denture processing. After processing is completed, the processing equipment is turned off, and the ball head milling cutter is carefully disassembled for cleaning and maintenance for next use.
[0035] As shown in Figures 1-3 the milling cutter head 3 is provided with an end portion 4 at the top position, the top blade 5 is provided at the top position of the end portion 4, the side blades 9 are respectively provided at the left and right sides of the top blade 5, the annular blade 7 is provided below the end portion 4, the first top blade relief 10 is provided at the rear side of the top blade 5 and the side blade 9, the second top blade relief 11 is provided at the rear side of the first top blade relief 10, the third top blade relief 12 is provided at the rear side of the second top blade relief 11, the inclination angle of the first top blade relief 10 is 15-20 degrees, the inclination angle of the second top blade relief 11 is 25-30 degrees, and the inclination angle of the third top blade relief 12 is 35-45 degrees.
[0036] Preferably, the top edge 5 and side edge 9 of the top of the milling head 3 and the lower ring edge 7 are designed to improve cutting efficiency and fine processing of the denture surface. The setting of multiple relief surfaces and the specific inclination angle ensure the accuracy and stability of cutting. The design of the chip groove 6 and the chip removal groove 8 ensures smooth chip removal, avoiding the accumulation of cutting chips affecting the processing quality and efficiency. The milling head 3 is made of hard alloy, which improves the hardness and wear resistance of the tool and prolongs the service life. The circular arc structure of the tool groove 16 and the tool edge 13 and the spiral angle design of the ring edge 7 further improve the cutting performance and chip removal effect.
[0037] As shown in Figures 1-2 and Figure 4 , the tool groove 16 is arranged at the front side of the ring edge 7, the tool edge 13 is arranged at the rear side of the ring edge 7, the first ring edge relief surface 14 is arranged at the outer side of the tool edge 13, the second ring edge relief surface 15 is arranged at the rear side of the first ring edge relief surface 14, the inclination angle of the first ring edge relief surface 14 is 8-12 degrees, and the inclination angle of the second ring edge relief surface 15 is 25-30 degrees.
[0038] Preferably, the tool groove 16 at the front side of the ring edge 7 and the tool edge 13 at the rear side are designed in combination with the first ring edge relief surface 14 and the second ring edge relief surface 15 with specific inclination angles. The inclination angle of the first ring edge relief surface 14 is 8-12 degrees, and the inclination angle of the second ring edge relief surface 15 is 25-30 degrees, which can further improve the cutting performance and chip removal effect. The design of the tool groove 16 and the tool edge 13 can make the cutting chips be discharged more smoothly, avoiding the accumulation of cutting chips affecting the processing quality and efficiency. The relief surface with a specific inclination angle can better control the cutting force and the direction of cutting chips, improving the machining accuracy and stability.
[0039] As shown in Figures 1-4 , the chip groove 6 is arranged at the bottom of the second top edge relief surface 11, the chip removal groove 8 is arranged at the bottom of the chip groove 6, the spiral angle of the ring edge 7 is 35-40 degrees, the top edge 5 is a parallel structure, the milling head 3 is made of hard alloy, and the tool groove 16 and the tool edge 13 are circular arc structures.
[0040] Optionally, the chip groove 6 at the bottom of the second top edge relief surface 11 and the chip removal groove 8 are designed to ensure that the cutting chips are discharged in time, avoiding the accumulation of cutting chips affecting the processing quality and efficiency. The spiral angle of the ring edge 7 is 35-40 degrees, which can improve the cutting efficiency and chip removal effect. The top edge 5 is a parallel structure, which is conducive to improving the stability and accuracy of cutting. The milling head 3 is made of hard alloy, which improves the hardness and wear resistance of the tool and prolongs the service life. The tool groove 16 and the tool edge 13 are circular arc structures, making the cutting process more smooth, reducing the concentration of cutting force, and improving the machining accuracy and tool durability.
[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A ball end mill for milling the surface of a denture, comprising a mill body (1); A mill head (3) is arranged at the top of the mill body (1), and a shank (17) is arranged at the bottom of the mill body (1), and the mill head (3) is connected with the shank (17) through a connecting part (2); characterized in that An end part (4) is arranged at the top of the mill head (3), a top edge (5) is arranged at the top of the end part (4), side edges (9) are respectively arranged at the left and right sides of the top edge (5), and a ring edge (7) is arranged below the end part (4).
2. The ball nose end mill for processing the surface of a denture according to claim 1, wherein: A first top edge relief (10) is arranged at the back of the top edge (5) and the side edge (9), a second top edge relief (11) is arranged at the back of the first top edge relief (10), and a third top edge relief (12) is arranged at the back of the second top edge relief (11).
3. The ball nose end mill for processing the surface of a denture according to claim 2, wherein: A flute (16) is arranged at the front of the ring edge (7), a tool edge (13) is arranged at the back of the ring edge (7), a first ring edge relief (14) is arranged at the outside of the tool edge (13), and a second ring edge relief (15) is arranged at the back of the first ring edge relief (14).
4. The ball nose end mill for processing the surface of a denture according to claim 3, wherein: A chip groove (6) is arranged at the bottom of the second top edge relief (11), and a chip flute (8) is arranged at the bottom of the chip groove (6).
5. The ball nose end mill for processing the surface of a denture according to claim 2, wherein: The inclination angle of the first top edge relief (10) is 15-20 degrees, the inclination angle of the second top edge relief (11) is 25-30 degrees, and the inclination angle of the third top edge relief (12) is 35-45 degrees.
6. The ball nose end mill for processing the surface of a denture according to claim 3, wherein: The inclination angle of the first ring edge relief (14) is 8-12 degrees, and the inclination angle of the second ring edge relief (15) is 25-30 degrees.
7. The ball nose end mill for processing the surface of a denture according to claim 1, wherein: The helix angle of the ring edge (7) is 35-40 degrees, and the top edge (5) is a parallel structure.
8. The ball nose end mill for processing the surface of a denture according to claim 4, wherein: The mill head (3) is made of hard alloy, and the flute (16) and the tool edge (13) are circular arc structures.