CN220050183U - Front waveform discrete edge end mill - Google Patents
Front waveform discrete edge end mill Download PDFInfo
- Publication number
- CN220050183U CN220050183U CN202321493711.8U CN202321493711U CN220050183U CN 220050183 U CN220050183 U CN 220050183U CN 202321493711 U CN202321493711 U CN 202321493711U CN 220050183 U CN220050183 U CN 220050183U
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- edge
- chip
- peripheral edge
- chip dividing
- groove
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 54
- 230000000452 restraining effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 5
- 238000003801 milling Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a front waveform discrete edge end mill, which consists of a cutter handle and an edge part, wherein the edge part is provided with four peripheral edges and four end edges, the front cutter surface of the peripheral edge is of a waveform curved surface structure along the spiral line direction of the peripheral edge, the peripheral edge is provided with chip dividing grooves, the peripheral edge is divided into two types according to the number and distribution positions of the chip dividing grooves on the peripheral edge, the first type of peripheral edge is provided with four wide chip dividing grooves, the wide chip dividing grooves are positioned at the trough positions, the second type of peripheral edge is provided with three narrow chip dividing grooves, the narrow chip dividing grooves are positioned at the crest positions, and the types of two adjacent peripheral edges are different. The chip dividing groove can be used in rough machining, the designed chip dividing groove can reduce axial milling force, the heat dissipation performance of a cutter is improved, the wave-shaped curved surface structure enables the cutter material to be high in removal rate, the chip containing space is large, and the chip removing fluency is improved.
Description
Technical Field
The utility model relates to the technical field of milling tools, in particular to a front waveform discrete edge end mill.
Background
The end mill is a processing tool commonly used for numerical control machine tools, in rough machining of some deep cavity parts, due to high material removal rate and large axial cutting depth, generated chips are longer, longer chips are not easy to discharge, the chips are curled and wound on a cutter, friction between the cutter and a workpiece is increased, temperature rise is caused, and the service life of the cutter is shortened.
The utility model provides a front waveform discrete edge end mill, wherein the designed front cutter surface of the peripheral edge of the end mill is of a waveform curved surface structure along the spiral line direction of the peripheral edge, so that the chip containing space of the end mill is increased, and the material removal rate is higher. Meanwhile, the chip dividing groove is arranged on the peripheral edge, so that the length of chips generated in the machining process is reduced, and the chips are easier to discharge. The chip dividing grooves on the peripheral edge can reduce axial milling force and improve heat dissipation performance of the cutter.
Disclosure of Invention
The utility model provides a front waveform discrete edge end mill, which aims to solve the problem that coarse machining materials are high in rate of out and difficult to remove chips due to overlong chips.
The technical scheme provided by the utility model is as follows: a front waveform discrete edge end mill is an integral end mill composed of a cutter handle 1 and an edge part 2, wherein the edge part is composed of four peripheral edges, and each peripheral edge is provided with a chip dividing groove.
Further, the front waveform discrete edge end mill has an overall dimension of 105mm, a diameter of 20mm, a core thickness H of 12mm, an edge length of 40mm, and a helix angle of 30 °.
Further, the peripheral edge rake angle gamma of the front waveform discrete edge end mill z 10 ° rake face width B 1 Is 2mm, zhou Rendi a relief angle alpha z1 10 DEG, width B of the peripheral edge first flank face az1 Is 1.5mm, zhou Rendi two relief angle alpha z2 15 DEG, the width B of the second flank of the peripheral edge az2 1.5mm, radius R of the flute profile of the blade 1 2.53mm, R 2 7.12mm.
Further, the first relief angle alpha of the end edge of the front waveform discrete edge end mill d1 10 DEG, width B of the first flank of the end edge ad1 2mm, end edge second relief angle alpha d2 15 deg..
Further, the front waveform discrete edge end mill peripheral edge front cutter surface is of a waveform curved surface structure along the peripheral edge spiral line direction, and the distance between the wave crest and the wave trough is as follows: k (K) 3 =1.5mm, the single wave form curved surface structure length is: k (K) 2 ＝10mm。
Further, the peripheral edge of the front waveform discrete edge end mill is divided into two types according to the number and distribution positions of the chip dividing grooves, four wide chip dividing grooves are formed in the first type of peripheral edge, the wide chip dividing grooves are located at the trough positions, and the distance K between the wide chip dividing groove closest to the end edge and the end edge is equal to the distance K between the wide chip dividing groove closest to the end edge and the end edge 1 The second type of peripheral edge has three narrow flutes at the peak position, the distance K between the narrow flute closest to the end edge and the end edge 2 =10mm, and the kinds of two adjacent peripheral edges are different; width C of front groove of wide chip dividing groove at trough position 1 =1.2 mm, depth 1mm, backset width C 2 =1.5 mm, depth 1.3mm; narrow chip breaker front groove width U at peak position 1 =1mm, depth 1mm, back groove width U 2 The shape of the chip dividing groove is spline curve, and the spline curve is formed by restraining two side endpoints of the groove width and the groove depth endpoint of the chip dividing groove.
The utility model has the beneficial effects that:
the peripheral edge front cutter face is designed to be of a wave-shaped curved surface structure along the peripheral edge spiral line, so that the chip containing space of the cutter is increased, higher feeding quantity per tooth can be selected, the material removal rate is improved, and the machining efficiency of the cutter is higher.
The chip dividing groove on the peripheral edge can reduce axial milling force, so that chips are easier to break, long curled chips cannot be generated, the chips are easier to discharge, the smoothness of chip removal is improved, the heat dissipation performance of the cutter is improved by the chip dividing groove, and the service life of the cutter is prolonged.
Drawings
In order to more intuitively illustrate the embodiments of the present utility model and the technical solutions in the technical claims, the following are exemplary illustrations of the technical claims.
FIG. 1 is an overall block diagram of the present utility model;
FIG. 2 is a cross-sectional view of the blade at A-A in FIG. 1;
FIG. 3 is an enlarged view of the end edge of the present utility model;
FIG. 4 is a peripheral edge development view of the present utility model;
FIG. 5 is an enlarged partial view of the chip-breaker on two classes of peripheral edges of the present utility model;
fig. 6 is a diagram of the shape of the chip breaker of the present utility model.
Reference numerals: 1. a knife handle; 2. a blade section; 3. a peripheral edge; 3-1, a first type of peripheral edge; 3-2, second class peripheral edges; 4. a peripheral edge rake face; 5. a chip dividing groove; 5-1, wide chip separation grooves on the first type of peripheral edges; 5-2, narrow chip separation grooves on the second class of peripheral edges; 6. a wave-shaped curved surface structure; 7. an end blade; 8. peripheral edge spiral line; 9. a peak; 10. a trough; 11. a peripheral blade relief surface; 12. the two ends of the groove width of the chip dividing groove; 13. the groove depth end point of the chip dividing groove.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a front waveform discrete edge end mill comprises a shank 1, an edge part 2, four peripheral edges 3 and four end edges 7, the overall dimension is 105mm, the diameter is 20mm, the edge length is 40mm, and the helix angle is 30 °.
As shown in FIGS. 2 and 3, the core thickness H is 12mm, and the peripheral edge rake angle gamma is z 10 ° rake face width B 1 Is 2mm, zhou Rendi a relief angle alpha z1 10 DEG, width B of the peripheral edge first flank face az1 Is 1.5mm, zhou Rendi two relief angle alpha z2 15 DEG, the width B of the second flank of the peripheral edge az2 1.5mm, radius R of flute profile of blade 2 1 2.53mm, R 2 7.12mm; first relief angle alpha of end edge d1 10 DEG, width B of the first flank of the end edge ad1 2mm, end edge second relief angle alpha d2 15 deg..
As shown in fig. 4 and 5, the peripheral edge rake surface 4 is a wave-shaped curved surface structure 6 along the direction of the peripheral edge spiral line 8, and the distance between the wave crest 9 and the wave trough 10 is as follows: k (K) 3 =1.5mm, the single wave curved surface structure 6 length is: k (K) 2 =10mm. According to the chip-separating grooves 5 on the peripheral edge 3The number and the distribution positions divide the peripheral edge 3 into two types, four wide chip-dividing grooves 5-1 are arranged on the first type of peripheral edge 3-1, the wide chip-dividing grooves 5-1 are positioned at the positions of the wave troughs 10, and the distance between the wide chip-dividing grooves 5-1 closest to the end edge 7 and the end edge 7 is as follows: k (K) 1 The second type of peripheral edge 3-2 has three narrow flutes 5-2, the narrow flutes 5-2 being located at the peaks 9, and the distance between the narrow flutes 5-2 closest to the end edge 7 and the end edge 7 being: k (K) 2 =10mm, and the kinds of adjacent two peripheral edges 3 are different; width C of front groove of wide chip dividing groove 5-1 at position of trough 10 1 =1.2 mm, depth 1mm, backset width C 2 =1.5 mm, depth 1.3mm; narrow chip breaker 5-2 front flute width U at peak 9 position 1 =1mm, depth 1mm, back groove width U 2 The shape of the chip breaker 5 is spline curve, and the spline curve is formed by restraining two ends 12 of the groove width of the chip breaker 5 and two ends 13 of the groove depth.
The present utility model is not limited by the specific embodiments, and modifications can be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present utility model.
Claims (3)
1. A front waveform discrete edge end mill characterized by: including handle of a knife (1) and cutting part (2), cutting part (2) comprise four week cutting edges (3) and four end cutting edges (7), and week cutting edge rake face (4) are wave form curved surface structure (6) along week cutting edge helix (8) direction, are equipped with chip breaking grooves (5) on week cutting edge back cutting face (11), and chip breaking grooves (5) distribution position and quantity are different on two adjacent week cutting edges (3).
2. The front waveform discrete edge end mill of claim 1, wherein: the peripheral edge rake face (4) is of a wave-shaped curved surface structure (6) along the direction of a peripheral edge spiral line (8), and the distance between a wave crest (9) and a wave trough (10) is as follows: k (K) 3 =1.5mm, the single wave curved surface structure (6) length is: k (K) 2 ＝10mm。
3. According to claimThe front waveform discrete edge end mill of claim 1, wherein: the peripheral edge (3) is divided into two types according to the number and distribution positions of the chip dividing grooves (5), four wide chip dividing grooves (5-1) are arranged on the peripheral edge (3-1) of the first type, the wide chip dividing grooves (5-1) are positioned at the positions of the wave troughs (10), and the distance K between the wide chip dividing grooves (5-1) closest to the end edge (7) and the end edge (7) 1 The second type of peripheral edge (3-2) is provided with three narrow chip-dividing grooves (5-2), the narrow chip-dividing grooves (5-2) are positioned at the wave crest (9), and the distance K between the narrow chip-dividing groove (5-2) closest to the end edge (7) and the end edge (7) 2 =10mm, and the kinds of adjacent two peripheral edges (3) are different; width C of front groove of wide chip dividing groove (5-1) at position of trough (10) 1 =1.2 mm, depth 1mm, backset width C 2 =1.5 mm, depth 1.3mm; narrow flute (5-2) front flute width U at peak (9) position 1 =1mm, depth 1mm, back groove width U 2 The chip dividing groove (5) is in a spline curve shape, and the spline curve is formed by restraining groove width two side end points (12) and groove depth end points (13) of the chip dividing groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321493711.8U CN220050183U (en) | 2023-06-12 | 2023-06-12 | Front waveform discrete edge end mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321493711.8U CN220050183U (en) | 2023-06-12 | 2023-06-12 | Front waveform discrete edge end mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220050183U true CN220050183U (en) | 2023-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321493711.8U Active CN220050183U (en) | 2023-06-12 | 2023-06-12 | Front waveform discrete edge end mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220050183U (en) |
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2023
- 2023-06-12 CN CN202321493711.8U patent/CN220050183U/en active Active
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