CN210937341U - Three-edge milling cutter - Google Patents
Three-edge milling cutter Download PDFInfo
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- CN210937341U CN210937341U CN201921506932.8U CN201921506932U CN210937341U CN 210937341 U CN210937341 U CN 210937341U CN 201921506932 U CN201921506932 U CN 201921506932U CN 210937341 U CN210937341 U CN 210937341U
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Abstract
A three-edge milling cutter comprises a cutter handle and a cutter head which are coaxially arranged, wherein the cutter head comprises a drill point and a cutter body, three first spiral grooves, second spiral grooves and third spiral grooves which are uniformly spaced are arranged around the cutter head, the first spiral groove, the second spiral groove and the third spiral groove divide the drill tip into three rear cutter faces with the same shape, each rear cutter face comprises a first end face and a second end face, an inner arc-shaped groove is formed between the first end surface and the second end surface, the bottom of the inner arc-shaped groove and the bottom of the second end surface are both arranged in the corresponding spiral grooves, corresponding spiral blade zones extend out of the lower part of the edge connecting blade on one side of the first end surface and the second end surface, which is far away from the arc shape in the groove, the spiral blade zone is in a double-blade-zone structure, a main cutting edge is arranged on each first end face, and a flow guide surface is arranged at the position where the lower end of each spiral groove is connected with the cutter handle.
Description
Technical Field
The utility model belongs to the technical field of the instrument, specific saying so relates to a three-edge milling cutter.
Background
The traditional common milling cutter has little structural shape change since centuries, new materials are continuously emerged along with the continuous development of science and technology, new requirements are continuously provided for a drill bit, only two cutting surfaces and cutting edges are arranged on the drill point of the drill bit, so that the drill bit can shake under high-speed rotation when drilling, the cutting efficiency is low due to the fact that only two edges are used for cutting, the cutting edges are high in abrasion speed, the machining precision is further reduced, meanwhile, the chip removal effect is poor, meanwhile, as a tool shank of the drill bit is clamped and fixed through a clamp and rotates along with the clamp for machining, as the tool shank is glossy, the clamping force of the clamp is often insufficient when drilling, the drill bit and the clamp are loosened and slipped, gaps are easily generated, small-area shaking of the drill bit occurs when the drill bit is used, and the drilling effect of the drill bit is greatly reduced, the precision of the drill bit during drilling can not be guaranteed, the use of the drill bit is influenced, and therefore the position degree after machining is poor, and the yield of products is influenced.
Therefore, the above problems should be considered and solved in the structural design and use of the milling cutter.
SUMMERY OF THE UTILITY MODEL
To the problem that exists, the utility model provides an overcome the defect among the prior art, provide a rational in infrastructure, intensity is high, the three-edge milling cutter that the cutting effect is good.
The technical solution of the utility model is that: a three-edge milling cutter comprises a cutter handle and a cutter head which are coaxially arranged, wherein the cutter head comprises a drill point and a cutter body, three first spiral grooves, second spiral grooves and third spiral grooves which are uniformly spaced are formed around the cutter head, the drill point is divided into three rear cutter faces with the same shape by the first spiral grooves, the second spiral grooves and the third spiral grooves, each rear cutter face comprises a first end face and a second end face, an inner arc-shaped groove is formed between the first end face and the second end face, the bottom of the inner arc-shaped groove and the bottom of the second end face are arranged in the corresponding spiral grooves, corresponding spiral edge bands extend from the lower parts of edge connecting blades on one sides, far away from the inner arc-shaped groove, of the first end face and the second end face, the spiral edge bands are of a double-blade structure, a main cutting edge is arranged on each first end face, and a flow guide surface is arranged at the position, connected with the lower end of each spiral groove, of the cutter handle, the lower end of each spiral blade zone is provided with an edge line.
The utility model discloses a further improvement lies in: the edge line coincides with the horizontal line.
The utility model discloses a further improvement lies in: each guide surface is provided with a grinding semi-arc surface shape.
The utility model discloses a further improvement lies in: the helical margin forms an included angle of 40 +/-5 degrees with the vertical plane.
The utility model discloses a further improvement lies in: the included angle between the first end face and the horizontal plane is 15 +/-5 degrees.
The utility model discloses a further improvement lies in: and the included angle between the horizontal planes of the second end faces is 80 degrees +/-5 degrees.
The utility model discloses a further improvement lies in: every with the main cutting edge is connected the contained angle that the arc form formed in the recess is sharp angular structure, the angle of sharp angular structure is 15 +/-5.
The utility model discloses a further improvement lies in: the surface of the main cutting edge is provided with a carbon nitride coating.
The utility model discloses a further improvement lies in: the cutter handle is evenly provided with a plurality of positioning holes along the periphery, and all the positioning holes are located on the same horizontal plane.
The utility model discloses a further improvement lies in: the tail of the knife handle is provided with a chamfering structure, the chamfering structure comprises a bevel edge which forms an angle of 45 degrees with the horizontal plane, and the bevel edge is provided with a plurality of anti-slip strip structures.
The utility model has the advantages that: the utility model relates to a simple and reasonable, provide a three-edge milling cutter, including three back knife face and three main cutting edge, and every back knife face all falls into first terminal surface and second terminal surface, cooperate heliciform all sword again, make milling cutter cut steadily in the operation, improve feed rate, the product finish after the cutting is high, make milling cutter more wear-resisting, reduce the production of burr during processing, the milled surface is more level and smooth simultaneously, greatly improved the mechanical utilization rate, reduce processing man-hour, improve machining efficiency, set up the interior arc shape of recess and the slope of second terminal surface is greater than first terminal surface between two adjacent back knife faces, these designs are all for the convenience of cutting fluid inflow cutting area, reduce the temperature of cutting edge, alleviate the wearing and tearing of cutting edge, guarantee that the bits after the cutting can be in time through the heliciform chip groove discharge, prevent that sweeps or coolant liquid from being detained in heliciform chip groove for a long time, and lead to milling cutter to generate heat easily, improved the incorruptibility of drill bit, set up the water conservancy diversion plane at the afterbody of heliciform chip groove for the chip removal is more smooth and easy, can also reduce the high temperature that the cutting edge produced in the course of working rapidly, makes the operation safer, has improved production efficiency greatly, has the practicality and easily extensively applies to the characteristics in market.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a front view of the drill tip of the present invention;
wherein: 1-tool shank, 2-tool bit, 3-drill point, 4-tool body, 5-rear tool face, 6-first end face, 7-second end face, 8-arc shape in groove, 9-sharp corner structure, 10-spiral groove, 11-edge connecting edge, 12-spiral blade band, 13-flow guide face, 14-grinding semi-arc shape, 15-edge line, 16-positioning hole, 17-chamfering structure and 18-anti-slip strip structure.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
As shown in the figure: the technical solution of the embodiment is as follows: a three-edge milling cutter comprises a cutter handle 1 and a cutter head 2 which are coaxially arranged, wherein the cutter head 2 comprises a drill tip 3 and a cutter body 4, three first spiral grooves, second spiral grooves and third spiral grooves which are uniformly spaced are formed around the cutter head 2, the drill tip 3 is divided into three rear cutter faces 5 with the same shape by the first spiral grooves, the second spiral grooves and the third spiral grooves, each rear cutter face 5 comprises a first end face 6 and a second end face 7, an included angle between the first end face 6 and a horizontal plane is 20 degrees, an included angle between the second end face 7 and the horizontal plane is 85 degrees, arc-shaped grooves 8 are formed between the first end face 6 and the second end face 7, each included angle formed by the arc-shaped grooves 8 connected with a main cutting edge 9 is a corner structure 9, the angle of the corner structure 9 is 20 degrees, and the bottoms of the arc-shaped grooves 8 and the bottoms of the second end faces 7 are arranged in corresponding spiral grooves 10, the spiral cutting edge structure is characterized in that corresponding spiral cutting edge strips 12 extend out of the lower portions of edge connecting edges 11 on one sides, far away from arc-shaped grooves 8, of the first end face 6 and the second end face 7, the spiral cutting edge strips 12 form an included angle of 45 degrees with a vertical plane, the spiral cutting edge strips 12 are double-cutting-edge strip structures, machined workpieces can be made to be smoother through the double-cutting-edge strip structures, a main cutting edge 9 is arranged on each first end face 6, a carbon nitride coating is arranged on the surface of each main cutting edge 9, a flow guide face 13 is arranged at the position, connected with the cutter handle 1, of the lower end of each spiral groove 10, a grinding semi-arc-shaped 14 is arranged on each flow guide face 13, an edge line 15 is arranged at the lower end of each spiral cutting edge strip 12, and the edge lines 15 are overlapped with a horizontal.
The utility model discloses a handle of a knife, including handle of a knife 1, locating hole 16, each locating hole 16 is located same horizontal plane, the afterbody of handle of a knife 1 is equipped with chamfer structure 17, chamfer structure 17 includes and personally submits the hypotenuse of 45 jiaos with the horizontal plane, be equipped with a plurality of antislip strip structures 18 on the inclined plane.
The utility model has the advantages that:
the utility model relates to a simple and reasonable, provide a three-edge milling cutter, including three back knife face and three main cutting edge, and every back knife face all falls into first terminal surface and second terminal surface, cooperate heliciform all sword again, make milling cutter cut steadily in the operation, improve feed rate, the product finish after the cutting is high, make milling cutter more wear-resisting, reduce the production of burr during processing, the milled surface is more level and smooth simultaneously, greatly improved the mechanical utilization rate, reduce processing man-hour, improve machining efficiency, set up the interior arc shape of recess and the slope of second terminal surface is greater than first terminal surface between two adjacent back knife faces, these designs are all for the convenience of cutting fluid inflow cutting area, reduce the temperature of cutting edge, alleviate the wearing and tearing of cutting edge, guarantee that the bits after the cutting can be in time through the heliciform chip groove discharge, prevent that sweeps or coolant liquid from being detained in heliciform chip groove for a long time, and lead to milling cutter to generate heat easily, improved the incorruptibility of drill bit, set up the water conservancy diversion plane at the afterbody of heliciform chip groove for the chip removal is more smooth and easy, can also reduce the high temperature that the cutting edge produced in the course of working rapidly, makes the operation safer, has improved production efficiency greatly, has the practicality and easily extensively applies to the characteristics in market.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A three-edge milling cutter characterized in that: the cutter comprises a cutter handle and a cutter head which are coaxially arranged, wherein the cutter head comprises a drill point and a cutter body, three first spiral grooves, a second spiral groove and a third spiral groove which are uniformly spaced are arranged around the cutter head, the drill point is divided into three rear cutter faces with the same shape by the first spiral groove, the second spiral groove and the third spiral groove, each rear cutter face comprises a first end face and a second end face, a groove inner arc shape is formed between the first end face and the second end face, the bottom of the groove inner arc shape and the bottom of the second end face are arranged in the corresponding spiral grooves, corresponding spiral blade bands extend from the lower parts of edge connecting blades on one sides of the first end face and the second end face, which are far away from the groove inner arc shape, the spiral blade bands are of double-blade band structures, each first end face is provided with a main cutting blade, and the position, connected with the lower end of each spiral groove, is provided with a flow guide surface, the lower end of each spiral blade zone is provided with an edge line.
2. A three-edge milling cutter as defined in claim 1, wherein: the edge line coincides with the horizontal line.
3. A three-edge milling cutter as defined in claim 1, wherein: each guide surface is provided with a grinding semi-arc surface shape.
4. A three-edge milling cutter as defined in claim 1, wherein: the helical margin forms an included angle of 40 +/-5 degrees with the vertical plane.
5. A three-edge milling cutter as defined in claim 1, wherein: the included angle between the first end face and the horizontal plane is 15 +/-5 degrees.
6. A three-edge milling cutter as defined in claim 1, wherein: and the included angle between the horizontal planes of the second end faces is 80 degrees +/-5 degrees.
7. A three-edge milling cutter as defined in claim 1, wherein: every with the main cutting edge is connected the contained angle that the arc form formed in the recess is sharp angular structure, the angle of sharp angular structure is 15 +/-5.
8. A three-edge milling cutter as defined in claim 1, wherein: the surface of the main cutting edge is provided with a carbon nitride coating.
9. A three-edge milling cutter as defined in claim 1, wherein: the cutter handle is evenly provided with a plurality of positioning holes along the periphery, and all the positioning holes are located on the same horizontal plane.
10. A three-edge milling cutter as defined in claim 1, wherein: the tail of the knife handle is provided with a chamfering structure, the chamfering structure comprises an inclined edge which forms an angle of 45 degrees with the horizontal plane, and a plurality of anti-slip strip structures are arranged on the inclined edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506932.8U CN210937341U (en) | 2019-09-11 | 2019-09-11 | Three-edge milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506932.8U CN210937341U (en) | 2019-09-11 | 2019-09-11 | Three-edge milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210937341U true CN210937341U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921506932.8U Active CN210937341U (en) | 2019-09-11 | 2019-09-11 | Three-edge milling cutter |
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| CN (1) | CN210937341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276188A (en) * | 2020-10-16 | 2021-01-29 | 邵阳县国安工具有限公司 | Combined hard alloy end milling cutter |
-
2019
- 2019-09-11 CN CN201921506932.8U patent/CN210937341U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276188A (en) * | 2020-10-16 | 2021-01-29 | 邵阳县国安工具有限公司 | Combined hard alloy end milling cutter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230913 Address after: 213000 No.10 Shuangyong Road, Xixiashu Town, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Changzhou Sinai Cutting Tool Technology Co.,Ltd. Address before: No.2-2 Riyueshan Road, Xixiashu Town, Xinbei District, Zhenjiang City, Jiangsu Province, 213149 Patentee before: Sinai Cutting Tools (Changzhou) Co.,Ltd. |
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| TR01 | Transfer of patent right |