CN216541055U - Taper ball end milling cutter - Google Patents
Taper ball end milling cutter Download PDFInfo
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- CN216541055U CN216541055U CN202123123788.XU CN202123123788U CN216541055U CN 216541055 U CN216541055 U CN 216541055U CN 202123123788 U CN202123123788 U CN 202123123788U CN 216541055 U CN216541055 U CN 216541055U
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Abstract
The utility model discloses a taper ball-end milling cutter, which comprises a milling cutter body used for processing a workpiece, wherein the rear part of the milling cutter body is provided with an integrally formed cutter handle part, mounting grooves are symmetrically formed in the front side and the rear side of the cutter handle part in a left-right mode, the mounting grooves are integrally in a rectangular concave structure, a spiral cutting edge is arranged at the front end of the milling cutter body and is divided into a front cutter face and a rear cutter face, the spiral cutting edge is integrally in a quenching strengthening structure, and an arc cutting edge is fixedly arranged at the top end part of the spiral cutting edge. This tapering bulb milling cutter adopts neotype structural design for the cutter utilizes the special position and the high range of spiral cutting edge and circular arc cutting edge to effectively reduce the vibrations in the cutting process at the in-process that uses, thereby guarantees the precision of whole course of working, can satisfy the requirement of high-speed cutting in-process chip breaking simultaneously, and realizes that same sword carries out thick, finish machining respectively.
Description
Technical Field
The utility model relates to the technical field of milling cutters, in particular to a taper ball-end milling cutter.
Background
The milling cutter is a cutting tool used in a milling machine, a cutter with a special shape is called a ball end mill, the cutter head of the ball end mill is similar to a spherical structure as the name suggests, the milling cutter is usually used for milling and pinning materials such as die steel, cast iron and the like, and the milling cutter can work in a high-temperature environment by utilizing the special structure of the milling cutter.
In the prior art, chinese patent with publication number CN210996738U discloses a ball end mill, which includes a ball end mill main body and a blade, wherein the blade is fixedly inserted into a bottom end of the ball end mill main body, a ball end mill is fixedly installed inside the ball end mill main body, a connecting block is movably installed on an outer surface of the ball end mill, an insertion groove is formed at a bottom of the ball end mill, a clamping groove is formed on an outer surface of a lower portion of the ball end mill, a limiting groove is formed inside the clamping groove, sliding grooves are formed on two side surfaces of the clamping groove, a first threaded hole is formed on an edge of an outer surface of a bottom end of the ball end mill, a connecting rod is fixedly connected to an outer surface of the connecting block, and a position of the connecting block inside the clamping groove can be adjusted to correspond to a position of the blade inside the insertion groove, so that a second fastening screw can be screwed with a third threaded hole on a side surface of the connecting block, the blade is extruded and fixed in the insertion groove, so that the service time of the blade after grinding is prolonged, and the expense is effectively saved.
However, in the actual use process, a certain vibration is generated when the tool is machined, the overall machining precision is affected by a large vibration amplitude, and chip breaking is difficult in the high-speed cutting process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a taper ball end mill, which aims to solve the problem that vibration in the machining process influences the machining precision in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a tapering ball end mill, is including being used for carrying out the milling cutter main part that processes to the work piece, milling cutter main part rear is the fashioned handle of a knife part of integration, still includes:
the mounting grooves are symmetrically arranged on the front side and the rear side of the cutter handle part in a left-right mode, and the mounting grooves are integrally of a rectangular concave structure;
the spiral cutting edge is arranged at the front end of the milling cutter body and is divided into a front cutter face and a rear cutter face, and the whole spiral cutting edge is of a quenching strengthening structure;
the arc cutting edge is fixedly arranged at the top end part of the spiral cutting edge, the arc cutting edge and the spiral cutting edge are of an integrated forming structure, and the arc cutting edge internally comprises three parts, namely an end tooth rake angle, a middle rake angle and an outer circle rake angle;
and the chip breaker groove is arranged between the adjacent spiral cutting edge and the adjacent arc cutting edge.
Preferably, the arc cutting edge, the spiral cutting edge, the milling cutter body and the cutter handle are integrally machined from the same material, the rear end of the milling cutter body is of a conical structure with the diameter increasing progressively, the whole device integrally made from the same material can effectively improve the strength, and the rigidity of the milling cutter body can be improved due to the conical structure.
Preferably, 4 groups of spiral cutting edges are symmetrically arranged in the center, the outer surfaces of the spiral cutting edges are located on the same circumference, and the symmetrically arranged spiral cutting edges can ensure the concentricity in the machining process, so that the condition of cutter breakage is avoided.
Preferably, the angle of the end tooth rake angle is 0 °, the angle of the middle rake angle is 7 °, the angle of the outer circle rake angle is 5 °, and the specific angle design of each of the end tooth rake angle, the middle rake angle and the outer circle rake angle can accelerate the efficiency of the overall cutting process.
Preferably, the first edge and the third edge of the spiral cutting edge pass through the sphere center of the ball end mill, the chip breaker is in a structure which rotates around the axis and is not overlapped, and the chip breaker can meet the chip breaking requirement in the high-speed cutting process by utilizing the special structure of the chip breaker.
Preferably, the height of the circular arc cutting edge in the axial direction of the second edge is lower than the height of the circular arc cutting edge in the axial direction of the first edge, the height of the circular arc cutting edge in the axial direction of the fourth edge is lower than the height of the circular arc cutting edge in the axial direction of the third edge, and the specific position and height arrangement among the cutting edges in the spiral cutting edge can reduce vibration generated during cutting, so that the precision of a machining process is ensured.
Compared with the prior art, the utility model has the beneficial effects that: this tapering ball end milling cutter adopts neotype structural design for the cutter utilizes the special position and the high range of spiral cutting edge and circular arc cutting edge to effectively reduce the vibrations in the cutting process at the in-process that uses, thereby guarantees the precision of whole course of working, can satisfy the requirement of high-speed cutting in-process chip breaking simultaneously, and realizes that same sword carries out thick, finish machining respectively, and its concrete content is as follows:
1. the milling cutter comprises a milling cutter body, a cutter handle part, a spiral cutting edge and an arc cutting edge, wherein the spiral cutting edge and the arc cutting edge are matched with each other for use, the cutter handle part is installed on machining equipment by utilizing an installation groove when the milling cutter body is used, and then the machining equipment is utilized to drive the milling cutter body to rotate, so that the spiral cutting edge and the arc cutting edge perform cutting machining on a workpiece.
2. The arc cutting edge, the end tooth front angle, the middle front angle and the excircle front angle are matched for use, and the vibration can be reduced during processing by utilizing the specific arrangement of the heights between the edges of the arc cutting edge and the specific angles of the end tooth front angle, the middle front angle and the excircle front angle, so that the overall processing precision is ensured, and meanwhile, the requirement of chip breaking in the high-speed cutting process can be met.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a side view of the milling cutter body of the present invention;
FIG. 3 is a partial front view of the milling cutter body according to the present invention;
fig. 4 is a schematic side view, sectional structure view of a portion of the inventive tool shank.
In the figure: 1. a milling cutter body; 2. a shank portion; 3. mounting grooves; 4. a helical cutting edge; 401. a rake face; 402. a flank face; 5. a circular arc cutting edge; 501. a front angle of the end teeth; 502. a median rake angle; 503. An excircle rake angle; 6. a chip breaker groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a tapering ball end mill, is including being used for carrying out the milling cutter main part 1 that processes to the work piece, and 1 rear of milling cutter main part is the fashioned handle of a knife part 2 of integration, still includes:
the mounting grooves 3 are symmetrically arranged on the front side and the rear side of the cutter handle part 2 in a left-right mode, and the mounting grooves 3 are integrally of a rectangular concave structure;
the spiral cutting edge 4 is arranged at the front end of the milling cutter body 1, the spiral cutting edge 4 is divided into a front cutter face 401 and a rear cutter face 402, and the whole spiral cutting edge 4 is of a quenching strengthening structure;
the arc cutting edge 5 is fixedly arranged at the top end part of the spiral cutting edge 4, the arc cutting edge 5 and the spiral cutting edge 4 are of an integrated forming structure, and the arc cutting edge 5 internally comprises three parts, namely an end tooth rake angle 501, a middle rake angle 502 and an outer circle rake angle 503;
and the chip breaker 6 is arranged between the adjacent spiral cutting edges 4 and the adjacent circular arc cutting edges 5.
Circular arc cutting edge 5, spiral cutting edge 4, milling cutter main part 1 and handle of a knife part 2 are the same material integration processing and form, and milling cutter main part 1 rear end is the circular cone column structure that the diameter increases progressively, and 4 sets of are provided with altogether to spiral cutting edge 4 centrosymmetric, and spiral cutting edge 4 surface is located same circumference.
The in-process that the cutter used utilizes the mounting groove 3 that 2 surfaces of handle of a knife set up at first with cutter monolithic installation on service equipment, later utilize equipment to drive the cutter wholly to take place to rotate for spiral cutting edge 4 and circular arc cutting edge 5 rotate and carry out cutting operation to the work piece that needs processing, the holistic integrated structure of in-process cutter in the use can effectively improve its intensity, avoid the condition of the broken sword of in-process appearance at the cutting, the concentricity in the course of working can be guaranteed to the spiral cutting edge 4 of symmetry setting simultaneously.
The angle of the end tooth rake angle 501 is 0 degree, the angle of the middle rake angle 502 is 7 degrees, the angle of the excircle rake angle 503 is 5 degrees, the first edge and the third edge of the spiral cutting edge 4 pass through the sphere center of the ball head milling cutter, the chip breaker 6 is in a structure rotating around the axis and not overlapping, the height of the second edge of the arc cutting edge 5 in the axial direction is lower than that of the first edge, and the height of the fourth edge in the axial direction is lower than that of the third edge in the axial direction.
In the machining process, the specific design angles of the end tooth rake angle 501, the middle rake angle 502 and the excircle rake angle 503 in the arc cutting edge 5 are matched with the height of each cutting edge, so that the high-frequency vibration generated when the milling cutter body 1 machines the impeller can be effectively reduced, the integral machining precision is improved, and the chip breaker groove 6 structure which rotates around the axis and is not overlapped can meet the chip breaking requirement of the milling cutter body 1 in the high-speed cutting process, so that the rough machining process and the finish machining process can be realized by using the same cutter, and the machining efficiency is improved.
The working principle is as follows: when the device is used, according to the structure shown in fig. 1-4, firstly, in the using process of the cutter, the whole cutter is arranged on using equipment by using the mounting groove 3 arranged on the outer surface of the cutter handle part 2, then the equipment is used for driving the whole cutter to rotate, so that the spiral cutting edge 4 and the circular arc cutting edge 5 rotate to carry out cutting operation on a workpiece to be processed, in the using process, the integral structure of the whole cutter can effectively improve the strength of the whole cutter, the condition of cutter breakage in the cutting process is avoided, meanwhile, the symmetrical spiral cutting edges 4 can ensure the concentricity in the processing process, and in the processing process, the high-frequency vibration generated by the milling cutter body 1 in the impeller processing process can be effectively reduced by matching the specific design angles of the end tooth rake angle 501, the middle rake angle 502 and the circular arc rake angle 503 in the circular arc cutting edge 5 with the heights of the cutting edges, therefore, the overall machining precision is improved, the chip breaking grooves 6 which rotate around the axis and are not overlapped can meet the chip breaking requirement of the milling cutter body 1 in the high-speed cutting process, the rough machining process and the finish machining process can be realized by the same cutter, and the machining efficiency is improved, namely the working principle of the taper ball head milling cutter.
Where details not described in this specification are known to those skilled in the art, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used in the orientations and positional relationships indicated in the drawings for simplicity of description only, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the utility model.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a tapering ball end mill, is including being used for carrying out the milling cutter main part that processes to the work piece, milling cutter main part rear is the fashioned handle of a knife part of integration, its characterized in that still includes:
the mounting grooves are symmetrically arranged on the front side and the rear side of the cutter handle part in a left-right mode, and the mounting grooves are integrally of a rectangular concave structure;
the spiral cutting edge is arranged at the front end of the milling cutter body and is divided into a front cutter face and a rear cutter face, and the whole spiral cutting edge is of a quenching strengthening structure;
the arc cutting edge is fixedly arranged at the top end part of the spiral cutting edge, the arc cutting edge and the spiral cutting edge are of an integrated forming structure, and the arc cutting edge internally comprises three parts, namely an end tooth rake angle, a middle rake angle and an outer circle rake angle;
and the chip breaker groove is arranged between the adjacent spiral cutting edge and the adjacent arc cutting edge.
2. A tapered ball nose mill as claimed in claim 1, wherein: the arc cutting edge, the spiral cutting edge, the milling cutter body and the cutter handle are integrally machined from the same material, and the rear end of the milling cutter body is of a conical structure with gradually increased diameter.
3. A tapered ball nose mill as claimed in claim 1, wherein: the spiral cutting edge centrosymmetric is provided with 4 groups altogether, just the spiral cutting edge surface is located same circumference.
4. A tapered ball nose mill as claimed in claim 1, wherein: the angle of the end tooth rake angle is 0 °, and the angle of the middle rake angle is 7 °, and the angle of the outer circle rake angle is 5 °.
5. A tapered ball nose mill as claimed in claim 1, wherein: the first edge and the third edge of the spiral cutting edge pass through the spherical center of the ball head milling cutter, and the chip breaker is of a structure which rotates around an axis and is not overlapped.
6. A tapered ball nose mill as claimed in claim 1, wherein: the height of the arc cutting edge in the direction of the second edge axis is lower than that of the arc cutting edge in the direction of the first edge axis, and the height of the arc cutting edge in the direction of the fourth edge axis is lower than that of the arc cutting edge in the direction of the third edge axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123123788.XU CN216541055U (en) | 2021-12-13 | 2021-12-13 | Taper ball end milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123123788.XU CN216541055U (en) | 2021-12-13 | 2021-12-13 | Taper ball end milling cutter |
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| Publication Number | Publication Date |
|---|---|
| CN216541055U true CN216541055U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123123788.XU Active CN216541055U (en) | 2021-12-13 | 2021-12-13 | Taper ball end milling cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115722712A (en) * | 2022-12-29 | 2023-03-03 | 无锡齐格致成精密机械制造有限公司 | Ball head drum-shaped numerical control milling cutter and preparation process thereof |
-
2021
- 2021-12-13 CN CN202123123788.XU patent/CN216541055U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115722712A (en) * | 2022-12-29 | 2023-03-03 | 无锡齐格致成精密机械制造有限公司 | Ball head drum-shaped numerical control milling cutter and preparation process thereof |
| CN115722712B (en) * | 2022-12-29 | 2023-11-03 | 无锡齐格致成精密机械制造有限公司 | Ball-head drum-shaped numerical control milling cutter and preparation process thereof |
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