CN219852309U - Milling cutter with lengthened cutting edge - Google Patents
Milling cutter with lengthened cutting edge Download PDFInfo
- Publication number
- CN219852309U CN219852309U CN202320586610.9U CN202320586610U CN219852309U CN 219852309 U CN219852309 U CN 219852309U CN 202320586610 U CN202320586610 U CN 202320586610U CN 219852309 U CN219852309 U CN 219852309U
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- Prior art keywords
- cutter
- concave section
- chip
- containing concave
- edge
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- 238000003801 milling Methods 0.000 title claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Milling Processes (AREA)
Abstract
The utility model discloses a milling cutter with lengthened cutting edge, which comprises a cutter handle and a cutter body; the cutter body is spirally provided with two grooves for chip removal, and the two grooves are arranged at intervals with the two cutting edges; the groove comprises a first chip containing concave section and a second chip containing concave section, the core diameter of the first chip containing concave section is D1, and the core diameter of the second chip containing concave section is D2, wherein D1 is more than D2; the length of the first chip containing concave section is one third of the length of the cutting edge, and the chip removing groove of the milling cutter is divided into two grooves, so that the thicknesses of two groove cores are inconsistent, the first chip containing concave section is positioned at the position of the lengthened cutting edge in the cutter body, the core diameter D1 of the first chip containing concave section is larger than the core diameter D2 of the second chip containing concave section, the core thickness of the lengthened cutting edge is thicker, the purposes of enhancing rigidity and not affecting chip removal are achieved, and the rigidity of the milling cutter is improved while the length of the cutting edge is lengthened.
Description
Technical Field
The utility model relates to the field of cutters, in particular to a milling cutter with lengthened cutting edges.
Background
The length of the edge of the milling cutter is an important factor in the parameters of the milling cutter, which is related to the depth of the machining when cutting. The blade length also affects the rigidity of the milling cutter, which is the bending resistance of the milling cutter, which is an important factor. The rigidity directly affects the durability of the milling cutter and the precision of the machined workpiece. At present, when an end mill is used for milling the inner cavity of a part, because the inner cavity of the part is deeper, a standard end mill which is usually used is limited by the length and cannot meet the processing requirement, and after the cutting edge of the milling cutter is long, particularly a cutter with smaller cutting edge diameter, the cutter flicking phenomenon is more easily caused, so that the cutter is worn faster, the service life of the cutter is too short, the cutter is broken, and the like. Frequent tool changes are required and the efficiency is too low.
Therefore, improvements are needed.
Disclosure of Invention
The utility model provides a milling cutter with lengthened cutting edge for solving the technical problems.
The utility model adopts the following solution scheme for realizing the technical effects:
a knife handle;
the cutter body is connected to the front end of the cutter handle, and two right spiral cutting edges are arranged on the cutter body;
wherein:
the cutter body is also spirally provided with two grooves for chip removal, and the two grooves are arranged at intervals with the two cutting edges; the groove comprises a first chip containing concave section and a second chip containing concave section, the core diameter of the first chip containing concave section is D1, and the core diameter of the second chip containing concave section is D2, wherein D1 is more than D2; the length of the first chip-containing concave section is one third of the length of the cutting edge.
Preferably, the peripheral relief surface of the blade is 0.13mm wide.
Preferably, the peripheral first relief angle of the blade is 12 °.
Preferably, the peripheral second relief angle of the blade is 30 °.
Preferably, the helix angle of the blade is 30 °.
Preferably, the core diameter of the first chip-containing concave section is 25% -35% of the blade diameter of the cutter body.
Preferably, a knife neck is arranged between the knife handle and the knife body; one end opening of the chip removal groove extends to the cutter neck.
The beneficial effects of the utility model are as follows: through dividing the slotting to this milling cutter chip groove for two slot core thickness are inconsistent, and first chip holding concave section is located the long position of sword in the cutter body, and its core footpath D1 is greater than the core footpath D2 of second chip holding concave section, makes the long core thickness of long sword of extension thicker, in order to reach the purpose that reinforcing rigidity does not influence the chip removal simultaneously, improves milling cutter's rigidity when the long sword of extension.
Drawings
FIG. 1 is a schematic view of a cutter according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of the cutter body;
FIG. 3 is a cross-sectional view in the direction CC in FIG. 1;
fig. 4 is an enlarged schematic view of the region a in fig. 3.
Identification description: 1-cutter body, 2-cutter neck, 3-cutter handle, 101-first chip containing concave section, 102-second chip containing concave section, 12-cutter edge, D1-core diameter of the first chip containing concave section, D2-core diameter of the second chip containing concave section, H-peripheral rear cutter face width, f 1-peripheral first rear cutter angle, f 2-first rear cutter angle of end edge and C-peripheral second rear cutter angle.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "fixedly connected to" another element, it can be conventionally connected by welding or bolting or gluing.
Referring to fig. 1-4, in a preferred embodiment of the present utility model, a milling cutter with lengthened cutting edge is disclosed, comprising:
a cutter handle 3;
the cutter body 1, the cutter body 1 connects to the front end of the shank 3, there are two right helical cutting edges 12 on the cutter body 1;
wherein:
the cutter body 1 is also provided with two grooves for chip removal in a spiral way, and the two grooves are arranged at intervals with the two cutting edges 12; the groove comprises a first chip containing concave section 101 and a second chip containing concave section 102, wherein the core diameter of the first chip containing concave section 101 is D1, and the core diameter of the second chip containing concave section 102 is D2, and D1 is more than D2; the length of the first chip-receiving concave section 101 is one third of the length of the cutting edge 12.
Specifically, the peripheral relief surface width H of the blade 12 is 0.13mm.
Specifically, the outer peripheral first relief angle f1 of the blade 12 is 12 °.
Specifically, the outer peripheral second relief angle f2 of the blade 12 is 30 °.
Specifically, the helix angle of the blade 12 is 30 °.
Specifically, the core diameter of the first chip-containing concave section is 25% -35% of the blade diameter of the cutter body 1.
Specifically, a cutter neck 2 is arranged between the cutter handle and the cutter body 1; one end of the chip removing groove is opened and extends to the cutter neck.
As can be seen from the above description, the chip removal groove of the milling cutter according to the present utility model is formed by grooving twice, so that the core thickness of the cutter body 1 is not uniform, thereby achieving the purpose of enhancing rigidity without affecting chip removal. The length of the first chip-containing concave section 101 is appropriately given according to the lengthened blade length, the first chip-containing concave section 101 is 1/3 of the blade length, and the core diameter of the first chip-containing concave section 101 is given according to the type of milling cutter and the blade diameter is 25% -35%. The length of the second chip containing concave section 102 is made according to the actual requirements of customers, the core diameter of the second chip containing concave section 102 is about 10% -15% of the core thickness according to the type of the milling cutter and is grooved, a reinforcing structure is formed, the cutting performance is improved, and the service life of the cutter is prolonged.
The D1 in the core diameter D1 refers to a length between the center of the cutter body and the bottom of the first chip-accommodating concave section. D2 with the core diameter D2 refers to the length between the center of the cutter body and the bottom of the second chip accommodating concave section.
While the preferred embodiments of the present utility model have been described in detail in connection with the drawings of the specification, it should be noted that the scope of the present utility model includes but is not limited to the above embodiments; the specific structure disclosed in the drawings of the specification is also a preferred embodiment of the present utility model, and other embodiments can be developed on the basis of the above description by those skilled in the art, so that any simple modification or equivalent substitution without departing from the innovative concepts of the present utility model is encompassed by the present utility model, and falls within the scope of protection of the present utility model.
Claims (7)
1. A cutting edge lengthened milling cutter comprising:
a knife handle;
the cutter body is connected to the front end of the cutter handle, and two right spiral cutting edges are arranged on the cutter body;
the method is characterized in that:
the cutter body is also spirally provided with two grooves for chip removal, and the two grooves are arranged at intervals with the two cutting edges; the groove comprises a first chip containing concave section and a second chip containing concave section, the core diameter of the first chip containing concave section is D1, and the core diameter of the second chip containing concave section is D2, wherein D1 is more than D2; the length of the first chip-containing concave section is one third of the length of the cutting edge.
2. The edge lengthened milling cutter of claim 1, wherein the peripheral relief surface of the edge is 0.13mm wide.
3. The edge lengthened milling cutter of claim 1, wherein the peripheral first relief angle of the edge is 12 °.
4. The edge lengthened milling cutter of claim 1, wherein the peripheral second relief angle of the edge is 30 °.
5. The edge-lengthened milling cutter of claim 2, wherein: the helix angle of the blade is 30 °.
6. The edge-lengthened milling cutter of claim 2, wherein: the core diameter of the first chip containing concave section is 25% -35% of the blade diameter of the cutter body.
7. The edge lengthened milling cutter of claim 4, wherein: a cutter neck is arranged between the cutter handle and the cutter body; and one end opening of the second chip accommodating concave section extends to the cutter neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320586610.9U CN219852309U (en) | 2023-03-23 | 2023-03-23 | Milling cutter with lengthened cutting edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320586610.9U CN219852309U (en) | 2023-03-23 | 2023-03-23 | Milling cutter with lengthened cutting edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219852309U true CN219852309U (en) | 2023-10-20 |
Family
ID=88343225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320586610.9U Active CN219852309U (en) | 2023-03-23 | 2023-03-23 | Milling cutter with lengthened cutting edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219852309U (en) |
-
2023
- 2023-03-23 CN CN202320586610.9U patent/CN219852309U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |