CN211680178U - Milling cutter and machining equipment - Google Patents
Milling cutter and machining equipment Download PDFInfo
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- CN211680178U CN211680178U CN201922487829.XU CN201922487829U CN211680178U CN 211680178 U CN211680178 U CN 211680178U CN 201922487829 U CN201922487829 U CN 201922487829U CN 211680178 U CN211680178 U CN 211680178U
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- milling cutter
- angle
- sword
- arbor
- edge
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- 238000003801 milling Methods 0.000 title claims abstract description 84
- 238000003754 machining Methods 0.000 title claims abstract description 17
- 238000005520 cutting process Methods 0.000 abstract description 38
- 239000000463 material Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000452 restraining effect Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 17
- 229910045601 alloy Inorganic materials 0.000 description 15
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910001315 Tool steel Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- NNSIWZRTNZEWMS-UHFFFAOYSA-N cobalt titanium Chemical compound [Ti].[Co] NNSIWZRTNZEWMS-UHFFFAOYSA-N 0.000 description 1
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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- 230000000670 limiting effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 1
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- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to a milling cutter and machining equipment, this milling cutter include the arbor the side of arbor is provided with the side sword, the side sword includes many spiral sword, and the definition the tangential direction of spiral sword with the axial contained angle of arbor is the helix angle, the helix angle is greater than the upper surface edge of the processing side of treating the machined part and the contained angle of horizontal direction. The embodiment of the utility model provides a pair of helical angle of milling cutter's spiral blade, owing to be greater than the upper surface edge of treating the processing side of machined part and the contained angle of horizontal direction, the spiral blade will be amputated to the inboard by cutting material to the burr on the edge of restraining to treat the machined part produces, has realized the finished product stable performance after the processing is accomplished, the effect of reliable quality.
Description
Technical Field
The utility model relates to a machining apparatus technical field, more specifically, the utility model relates to a milling cutter and machining equipment.
Background
Milling when milling some materials with ductile properties, burrs are formed by plastic deformation during the process of pressing deformation of the tool and material and separation of chips and material. The product with burrs can fall off due to various external factors in the use process, and the fallen burrs can influence the operation environment of a system where the product is located, so that the product is blocked or blocked, and the stable operation of the system is hindered. In a current running system, the conductive medium attached with the burrs generates point discharge due to the burrs and can damage other conductive materials with a short distance; or other objects may be punctured by the burr, resulting in breakage of other objects or leakage of the contents.
Therefore, a new technical solution is needed to solve at least one of the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a milling cutter and machining equipment.
According to the utility model discloses an aspect provides a milling cutter, including the arbor the side of arbor is provided with the side sword, the side sword includes many spiral sword, defines the tangential direction of spiral sword with the axial contained angle of arbor is the helix angle, the helix angle is greater than the upper surface edge of the processing side of treating the machined part and the contained angle of horizontal direction.
Optionally or alternatively, the knife shaft is cylindrical or conical.
Optionally or alternatively, an end blade is provided at a bottom end of the arbor.
Optionally or alternatively, the helical edge is connected to the end edge.
Optionally or alternatively, an included angle between the end edge and the horizontal direction is defined as a secondary deflection angle, and the secondary deflection angle is 2-5 degrees.
Alternatively or additionally, the helix angle is from 10 ° to 60 °.
Optionally or alternatively, the milling cutter is a face mill, a radius mill or a ball nose mill.
Optionally or alternatively, flutes are formed between adjacent helical edges.
Optionally or alternatively, the milling cutter is a left-hand milling cutter.
According to another aspect of the utility model, a machining equipment is provided, including above-mentioned milling cutter.
The embodiment of the utility model provides a pair of spiral angle alpha of spiral sword of milling cutter soon, owing to be greater than the upper surface edge of treating the processing side of machined part and the contained angle beta of horizontal direction, the spiral sword will be amputated downwards by cutting material to the burr production on the edge A of restraining to treat the machined part has realized the finished product stable performance after the processing is accomplished, the effect of the reliable quality.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic front view of a milling cutter according to an embodiment of the present invention.
Fig. 2 is a schematic side view of a cutting manner of a milling cutter to be processed according to an embodiment of the present invention.
Fig. 3 is a schematic perspective view of a cutting mode of a milling cutter to be processed according to an embodiment of the present invention.
Description of reference numerals:
1-spiral blade, 2-workpiece to be machined and 3-chip groove.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 to 3, an embodiment of the present invention discloses a milling cutter. The milling cutter is used for milling parts.
The milling cutter is a left-handed milling cutter or a right-handed milling cutter. For example, in the case of a left-hand milling cutter, the milling cutter is mounted on a machining device that rotates clockwise (top view angle); in the case of a right-hand milling cutter, the milling cutter is mounted on a machining device that rotates counterclockwise (top view).
As shown in fig. 1, the milling cutter includes a cutter shaft which is divided into a shank portion and a cutting portion. The cutter handle part is a fixing part of the milling cutter. The side surface of the cutter shaft is provided with a side blade which is arranged on the cutting part. The side edge comprises a plurality of helical edges 1. An included angle between the tangent T direction of the spiral blade 1 and the axial direction E of the cutter shaft is defined as a spiral angle alpha, and the spiral angle alpha is larger than an included angle beta between the upper surface edge A of the processing side of the workpiece 2 to be processed and the horizontal direction D.
As shown in fig. 2 and 3, in use, the milling cutter is mounted on a motor of a machining apparatus; fixing the workpiece 2 to be machined on a bearing part of the machining equipment;
selecting a left-handed milling cutter or a right-handed milling cutter with the helix angle alpha value larger than the included angle beta value according to the included angle beta value between the edge A of the workpiece to be machined and the horizontal direction;
because the helix angle alpha value of the spiral blade 1 is larger than the included angle beta value between the upper surface edge A of the processing side of the workpiece to be processed 2 and the horizontal direction D, the direction of the cutting force applied to the edge A by the spiral blade 1 is inward (namely toward the inner side of the material of the workpiece to be processed 2) in the cutting process, the effect of inhibiting the burrs of the edge A from tilting outwards is achieved, and finally the effects of stable performance, reliable quality and high processing efficiency of the finished product after processing are achieved.
As shown in fig. 3, during the cutting process, the burr on the edge a is milled by means of a milling cutter from the outside of the edge a to the inside of the edge a of the workpiece 2 to be machined.
Arrow C in fig. 3 indicates the cutting trajectory of the milling cutter, and the cutting trajectory is a winding trajectory.
The arrow S is the stepping direction of the milling cutter, that is, after the milling of one linear track is completed, the milling cutter driven by the processing equipment is stepped in the arrow S direction to perform the cutting of the next linear track.
In one embodiment, the side edge comprises four spiral edges 1, and the four spiral edges 1 are uniformly and spirally arranged at intervals. The four helical blades 1 are spaced at 90 degrees in the circumferential direction of the cutter shaft. The arrangement mode enables the side edge of the milling cutter to have high cutting speed and the surface of the cut part to be smooth. Of course, the number of the spiral blades 1 is not limited to four, and those skilled in the art can arrange the blades according to actual situations.
In one embodiment, the arbor is cylindrical or conical. The cylindrical milling cutter in this embodiment can suppress the generation of burrs on the horizontal edge or the oblique edge when cutting a step having a vertical surface.
The tapered milling cutter in the present embodiment can suppress the generation of burrs when cutting the edge intersecting the inclined surface.
In one embodiment, an end blade is provided at the bottom end of the arbor. For example, the end edge is arranged at the bottom end of the side edge in a radial shape, and the end edge is in a straight line shape, an arc shape, a curve shape and the like. In this example, the end and side edges together are such as to be able to mill simultaneously the plane and the elevation of the piece to be machined.
In one embodiment, the helical edge 1 is connected to the end edge, e.g., the helical edge and the end edge are integrally formed, which form a smooth connection. When milling, the cutting edge of the milling cutter is not easy to be damaged, and the external resistance is stronger.
In one embodiment, the milling cutter is made of high-speed tool steel, hard alloy and the like.
The high-speed tool steel and the hard alloy have the following advantages:
high hardness and wear resistance: at normal temperature, the material of the cutting part has enough hardness to cut into the workpiece; has high wear resistance, the cutter is not worn, and the service life is prolonged.
Good heat resistance: the tool generates a large amount of heat during the cutting process, and particularly, the temperature is high at a high cutting speed, so that the tool can maintain high hardness even at a high temperature and has the performance of continuous cutting, and the tool has the property of high-temperature hardness, namely hot hardness or red hardness.
High strength and good toughness: during the cutting process, the cutter can bear large impact force and cannot be broken or damaged. The milling cutter can bear impact and vibration, so that the high-speed tool steel and the hard alloy also have good toughness and are not easy to break edges and break.
Wherein, the high-speed tool steel has higher contents of alloy elements of tungsten, chromium, molybdenum and vanadium, and the quenching hardness can reach HRC 62-70. The high hardness can be still maintained at the high temperature of 600 ℃.
The cutting edge has good strength and toughness and strong vibration resistance, can be used for manufacturing cutters with general cutting speed, and can still smoothly cut a machine tool with poor rigidity by adopting a high-speed steel milling cutter.
The process performance is good, the forging, processing and sharpening are easy, and the cutter with a complex shape can be manufactured.
Compared with the hard alloy material, the hard alloy material has the defects of lower hardness, poorer red hardness and wear resistance and the like.
Wherein, the hard alloy is made of metal carbide, tungsten carbide, titanium carbide and metal binder mainly comprising cobalt through a powder metallurgy process.
The main characteristics are as follows:
it can resist high temp. and can still maintain good cutting performance at 800-1000 deg.C, and when it is used for cutting, the cutting speed 4-8 times higher than that of high-speed steel can be selected.
High normal temperature hardness and good wear resistance.
Low bending strength, poor impact toughness and sharp cutting edge which is not easy to grind.
Commonly used cemented carbides generally include the following:
tungsten-cobalt hard alloys are commonly used under the designations YG3, YG6 and YG8, wherein the number indicates the percentage of cobalt content, the more the cobalt content, the better the toughness, the better the resistance to impact and vibration, but the lower the hardness and wear resistance. Therefore, the alloy is suitable for cutting cast iron and nonferrous metals, and also can be used for cutting blanks with high impact, quenched steel parts and stainless steel parts.
The titanium cobalt hard alloy has the common brands of YT5, YT15 and YT30, and the number represents the percentage of titanium carbide. After the hard alloy contains titanium carbide, the bonding temperature of the steel can be increased, the friction coefficient can be reduced, the hardness and the wear resistance can be slightly improved, but the bending strength and the toughness are reduced, and the properties become brittle, so that the alloy is suitable for cutting steel parts.
The general hard alloy is prepared by adding proper amount of rare metal carbide such as tantalum carbide and niobium carbide into the two hard alloys to refine crystal grains, improve normal temperature hardness and high temperature hardness, wear resistance, bonding temperature and oxidation resistance, and increase toughness of the alloy, so that the hard alloy tool has good comprehensive cutting performance and universality, and the brands of the hard alloy tool are as follows: YW1, YW2, YA6 and the like are mainly used for materials difficult to process, such as high-strength steel, heat-resistant steel, stainless steel and the like, because of their high price.
In one embodiment, the included angle between the end edge and the horizontal direction is defined as a secondary deflection angle k, and the secondary deflection angle k is 2-5 degrees. Compared with the end edge which is horizontally arranged, the friction area between the end edge and the surface of the cut material is smaller in the angle range. The end edge receives less resistance during cutting.
The larger the angle of the spiral angle of the milling cutter is, the larger the resistance borne by the milling cutter is during feeding, but the larger the included angle between the edge of the upper surface of the processing side of the workpiece to be processed and the horizontal direction is allowed to be; conversely, the smaller the helix angle, the less resistance the milling cutter is subjected to during feed, but the smaller the angle that the upper surface edge of the work side of the workpiece to be machined can make with the horizontal.
In one embodiment, the helix angle is from 10 ° to 60 °. Within this angle range, burrs can be suppressed for the edges of workpieces to be machined of various angle specifications.
In one embodiment, the milling cutter is a flat end mill, a face mill, a radius mill, a nose mill, or a ball end mill. The milling cutter can process any one of a plane, an inclined plane, a step, a groove, a curved surface groove, a formed surface, a cut-off workpiece and a curved surface.
The type of milling cutter can be selected by the person skilled in the art according to the actual need.
The side edge and the end edge of the end mill provided in the present embodiment can cut simultaneously or separately.
For example, workpieces suitable for end milling machining mostly have one or more side wall surfaces perpendicular to the bottom surface (this surface is parallel to the milling machine spindle).
For example, flat end mills perform finish or rough milling, mill grooves, remove bulk stock, small horizontal planes or profile finish milling.
The flat-end milling cutter with the chamfer can be used for rough milling to remove a large number of blanks and can also be used for fine milling of small chamfers on a fine flat surface (relative to a steep surface).
For example, ball nose mills perform curved surface semi-finish milling and finish milling.
For example, a round nose milling cutter performs rough milling with less curved surface variation, less narrow recessed area, and more relatively flat area.
In actual processing, the selection of the cutting speed mainly depends on the material of a workpiece to be processed; the selection of the feed rate depends mainly on the material of the workpiece to be machined and the diameter of the milling cutter. The selection of cutting parameters is simultaneously influenced by various factors such as machine tool, cutter breaking, appearance of the workpiece to be machined, clamping mode and the like, and the cutting speed and the feeding speed are adjusted according to the practical condition.
When the service life of the cutter is taken as a priority factor, the cutting speed and the feeding speed can be properly reduced; when the edge separation of the chips is insufficient, the cutting speed can be increased appropriately.
The milling cutter provided by the embodiment can be applied to the fields of metal and nonmetal processing such as mechanical manufacturing, automobile manufacturing, aerospace, rail locomotive, glasses processing, industrial manufacturing, ships, clocks, molds, electronics, mobile phones and the like.
In one embodiment, the flutes 3 are formed between adjacent helical edges. The chip grooves 3 are used for removing chips generated in cutting. For example, the chip grooves 3 have an arc shape, a V shape, a U shape, or the like in cross section. For example, the helical blades and flutes are integrally formed. During processing, the chip grooves are formed through material removal treatment or rolling. This way of machining makes the dimensions of the flutes 3 more precise.
For example, the flutes 3 of the left-hand milling cutter rise helically from right to left. The chip groove of the right-handed milling cutter spirally rises from left to right.
The number of flutes is not limited herein and can be selected by one skilled in the art according to actual needs.
The embodiment also discloses machining equipment comprising the milling cutter. The machining equipment of the embodiment realizes no burr on the finished product after machining, thereby having stable performance and reliable quality.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A milling cutter characterized by: including the arbor the side of arbor is provided with the side sword, the side sword includes many spiral sword, and the definition the tangential direction of spiral sword with the axial contained angle of arbor is the helix angle, the helix angle is greater than the upper surface edge of the processing side of treating the machined part and the contained angle of horizontal direction.
2. The milling cutter according to claim 1, wherein: the cutter shaft is cylindrical or conical.
3. The milling cutter according to claim 1, wherein: an end blade is arranged at the bottom end of the cutter shaft.
4. The milling cutter according to claim 3, wherein: the helical blade is connected with the end blade.
5. The milling cutter according to claim 3, wherein: an included angle between the tangential direction of the end blade and the horizontal direction is defined as an auxiliary deflection angle, and the auxiliary deflection angle is 2-5 degrees.
6. The milling cutter according to claim 1, wherein: the helical angle is 10-60 degrees.
7. The milling cutter according to claim 1, wherein: the milling cutter is a plane milling cutter, a fillet milling cutter or a ball head milling cutter.
8. The milling cutter according to claim 1, wherein: the adjacent spiral edges form chip grooves.
9. The milling cutter according to claim 1, wherein: the milling cutter is a left-handed milling cutter.
10. A machining apparatus characterized in that: comprising a milling cutter tool according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487829.XU CN211680178U (en) | 2019-12-30 | 2019-12-30 | Milling cutter and machining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487829.XU CN211680178U (en) | 2019-12-30 | 2019-12-30 | Milling cutter and machining equipment |
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| Publication Number | Publication Date |
|---|---|
| CN211680178U true CN211680178U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922487829.XU Active CN211680178U (en) | 2019-12-30 | 2019-12-30 | Milling cutter and machining equipment |
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| Country | Link |
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| CN (1) | CN211680178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535676A (en) * | 2022-02-28 | 2022-05-27 | 广东鼎泰高科技术股份有限公司 | Machining tool capable of inhibiting burrs |
-
2019
- 2019-12-30 CN CN201922487829.XU patent/CN211680178U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535676A (en) * | 2022-02-28 | 2022-05-27 | 广东鼎泰高科技术股份有限公司 | Machining tool capable of inhibiting burrs |
| CN114535676B (en) * | 2022-02-28 | 2023-08-29 | 广东鼎泰高科技术股份有限公司 | Machining tool capable of inhibiting burrs |
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