CN114535676B - Machining tool capable of inhibiting burrs - Google Patents
Machining tool capable of inhibiting burrs Download PDFInfo
- Publication number
- CN114535676B CN114535676B CN202210190889.9A CN202210190889A CN114535676B CN 114535676 B CN114535676 B CN 114535676B CN 202210190889 A CN202210190889 A CN 202210190889A CN 114535676 B CN114535676 B CN 114535676B
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- cutting
- edge
- burrs
- chip groove
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/40—Flutes, i.e. chip conveying grooves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a processing cutter capable of inhibiting burrs, which comprises a cutting part and a handle part which are connected, wherein the free end of the cutting part is set as the bottom end, the free end of the handle part is set as the top end, a first cutting edge and a first chip removing groove matched with the first cutting edge are spirally arranged from the bottom end to the top end, a second cutting edge is arranged between the first cutting edge and the handle part, the first chip removing groove extends towards the handle part to form a second chip removing groove matched with the second cutting edge, and the included angle between the second cutting edge and the central shaft of the handle part is-10 degrees to 5 degrees. The invention realizes cutting by providing radial force by the first cutting edge with the spiral structure, and the second cutting edge carries out horizontal cutting to prevent burrs from escaping the opportunity of being cut, so that the burrs are cut, thereby realizing the purpose of restraining the burrs, enabling the cutter to process efficiently and ensuring the quality of a processed workpiece.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a machining tool capable of inhibiting burrs.
Background
Milling tools are rotary tools for milling machining having one or more cutter teeth. When in operation, each cutter tooth cuts off the allowance of the workpiece intermittently in sequence. Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces, cutting workpieces, etc. on milling machines. The milling cutter generally pursues sharpness, for soft material processing, the sharpness of the cutting edge is generally improved by increasing the spiral angle, burrs are generated by axial pushing during spiral angle cutting, so that the final trace part is not cut off, and the increase of the spiral angle simultaneously causes the risk of increasing burrs at the cutting outlet; if the spiral angle is common, the cutting edge is not sharp enough, and when a cutter with the cutting edge not sharp enough is used for processing a soft material, the temperature of the cutting process is too high, the viscosity of the soft material is increased at a high temperature, and the risks of affecting chip removal and further reducing the sharpness of the cutter are caused. Therefore, it is necessary to develop a machining tool having both sharpness and suppressed generation of burrs to solve the current technical drawbacks.
Disclosure of Invention
The invention aims to provide a processing cutter capable of inhibiting burrs, which not only has sharpness, but also can inhibit burrs from being generated, and can realize high efficiency and high quality for processing soft materials.
In order to achieve the above object, the invention discloses a processing tool capable of suppressing burrs, which comprises a cutting part and a shank part which are connected, wherein the free end of the cutting part is set as a bottom end, the free end of the shank part is set as a top end, a first cutting edge and a first chip removal groove matched with the first cutting edge are spirally arranged from the bottom end to the top end, a second cutting edge is arranged between the first cutting edge and the shank part, the first chip removal groove extends towards the shank part to form a second chip removal groove matched with the second cutting edge, and an included angle between the second cutting edge and a central shaft of the shank part is-10 degrees to 5 degrees.
Compared with the prior art, the machining tool capable of inhibiting burrs is characterized in that the first cutting edge is of a spiral structure, radial force is provided for realizing cutting, the first chip groove is used for discharging during machining, the second cutting edge is arranged close to the handle, namely, when the machining tool is used, the second cutting edge is close to the clamping position, the influence on the strength of the tool is small, and particularly, an included angle between the second cutting edge and the central axis of the handle is-10 degrees to 5 degrees, so that the second cutting edge is used for realizing horizontal cutting to prevent burrs from escaping from the machined opportunity, and burrs are cut, so that the occurrence of burrs is inhibited, the tool is enabled to perform machining efficiently, and the quality of machined workpieces is guaranteed.
Preferably, the helix angle of the first cutting edge is 25-35 °.
Preferably, the length of the second cutting edge is 1-2mm.
Preferably, the bottom end of the cutting part is provided with a tooth gap based on the first chip removal groove, the tooth gap is correspondingly provided with a first knife face, and the first knife face and the bottom end face intersect to form an end edge.
Preferably, the end edge includes a first edge and a second edge concavely formed along an extending direction of the first edge.
Preferably, the second edge is connected to the first cutting edge through a third edge having a circular arc structure.
Preferably, the first cutting edge is formed with a flank surface and a rake surface, and a clearance groove is formed between the flank surface and the rake surface.
Preferably, the second cutting edge is parallel to the central axis of the shank.
Preferably, the cutting portion and the shank portion are integrally formed or welded together.
Preferably, the first cutting edge and the second cutting edge are integrally formed.
Preferably, an auxiliary chip groove with an arc structure is arranged between the first chip groove and the second chip groove.
Drawings
Fig. 1 is a perspective view of a machining tool of the present invention.
Fig. 2 is a perspective view of the machining tool of fig. 1 at another angle.
Fig. 3 is a left side view of the machining tool of the present invention.
Fig. 4 is a front view of the machining tool of the present invention.
Fig. 5 is an enlarged view at a in fig. 1.
Fig. 6 shows a schematic structural view of the angle between the second cutting edge and the central axis of the shank.
Symbol description:
the cutting portion 10, the first cutting edge 11, the relief surface 111, the rake surface 113, the first chip groove 12, the second cutting edge 13, the second chip groove 14, the clearance 15, the first rake surface 16, the second rake surface 17, the end edge 18, the first edge 181, the second edge 183, the third edge 185, the bottom end surface 19, the shank 20, and the clearance groove 21.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
Referring to fig. 1-2, the present invention provides a processing tool capable of suppressing burrs, comprising a cutting portion 10 and a shank portion 20 connected to each other, wherein a free end of the cutting portion 10 is set as a bottom end, a free end of the shank portion 20 is set as a top end, a first cutting edge 11 and a first chip groove 12 matching the first cutting edge 11 are spirally arranged from the bottom end to the top end, a second cutting edge 13 is arranged between the first cutting edge 11 and the shank portion 20, the first chip groove 12 extends towards the shank portion 20 to form a second chip groove 14 matching the second cutting edge 13, and an included angle between the second cutting edge 13 and a central axis of the shank portion 20 is-10 ° to 5 °.
In the technical scheme of the invention, the first cutting edge 11 is in a spiral structure, radial force is provided for realizing cutting, the first chip groove 12 and the second chip groove 14 are used for discharging during machining, the second cutting edge 13 is arranged close to the handle 20, namely, when the cutter is used, the second cutting edge 13 is close to a clamping position, the influence on the strength of the cutter is small, particularly, an included angle between the second cutting edge 13 and the central axis of the handle 20 is between-10 degrees and 5 degrees, the second cutting edge 13 is mainly used for realizing horizontal cutting so as to prevent burrs from escaping from the cut opportunity, and the burrs are cut, so that the burrs are restrained, the cutter is used for efficiently machining, and the quality of a machined workpiece is ensured.
It should be noted that the machining tool may be, but is not limited to, a milling cutter, which includes a cutting portion 10 and a shank portion 20 connected, wherein the cutting portion 10 and the shank portion 20 are integrally formed or welded together, and the shank portion 20 may be, but is not limited to, cylindrical. The cutting part 10 and the handle part 20 are integrally formed, so that the service life of the processing cutter can be prolonged, the cutting part 10 and the handle part 20 are fixedly connected in a welding mode, the recycled waste cutter can be fully utilized, and the cost is reduced.
It should be noted that the number of the first cutting edges 11 which are spirally arranged may be 1, 2 or more, and may be set as required. The second cutting edges 13 are formed by extending the distal ends of the first cutting edges 11 in the horizontal direction or substantially in the horizontal direction toward the shank 20, and thus the number of the second cutting edges 13 corresponds to the number of the first cutting edges 11. Referring to fig. 1-2, in the present embodiment, 4 first cutting edges 11 are spirally disposed from the bottom end to the top end, 4 second cutting edges 13 are correspondingly disposed, a first chip groove 12 is disposed between two adjacent first cutting edges 11, and a second chip groove 14 is disposed between two adjacent second cutting edges 13. Further, the first cutting edge 11 and the second cutting edge 13 are integrally formed. Further, the first junk slots 12 and the second junk slots 14 are integrally formed, i.e. the first junk slots 12 extend to form the second junk slots 14, and the directions of the first junk slots 12 and the second junk slots 14 are different only due to the different angles of the first cutting edge 11 and the second cutting edge 13, and preferably, the widths of the first junk slots 12 and the second junk slots 14 are the same. In a preferred embodiment, an auxiliary junk slot (not shown) having a circular arc structure is provided between the first junk slot 12 and the second junk slot 14, and the smoothness and efficiency of junk discharge are improved by the auxiliary junk slot.
It will be appreciated that referring to fig. 4, the present invention defines the angle α between the first cutting edge 11 and the central axis of the shank 20 as the helix angle of the first cutting edge 11. Preferably, the helix angle α of the first cutting edge 11 is 25-35 ° to ensure sharpness of the tool. Wherein the helix angle α may be, but is not limited to, 25 °, 26 °, 27 °, 28 °, 29 °, 30 °, 31 °, 32 °, 33 °, 34 °, 35 °.
It will be appreciated that referring to fig. 6, the angle between the second cutting edge 13 and the central axis of the shank 20 is-10 ° to 5 °, both positive and negative, the positive angle β2 being 0 ° -5 °, and the negative angle β1 being-10 ° -0 °. Wherein the angle between the second cutting edge 13 and the central axis of the shank 20 may be, but is not limited to, -10 °, -9 °, -8 °, -7 °, -6 °, -5 °, -4 °, -3 °, -2 °, -1 °, 0 °, 1 °, 2 °, 3 °, 4 °, 5 °. Preferably, the angle between the second cutting edge 13 and the central axis of the shank 20 is-5 ° to 5 °. More preferably, the angle between the second cutting edge 13 and the central axis of the shank 20 is 0 °, that is, the second cutting edge 13 is parallel to the central axis of the shank 20, that is, the helix angle of the second cutting edge 13 is 0 °, so that the second cutting edge 13 can cut burrs more effectively, but the present invention is not limited thereto, and the second cutting edge 13 may be substantially parallel to the central axis of the shank 20.
In a preferred embodiment, the length of the second cutting edge 13 is 1-2mm, such as but not limited to 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm. When the length of the second cutting edge 13 is less than 1mm, high requirements are set for the positioning precision, the part height and the clamping precision of the machine tool; when the length of the second cutting edge 13 is more than 2mm, cutting vibration is large, and vibration lines are easily generated.
In a preferred embodiment, referring to fig. 5, the bottom end of the cutting portion 10 is provided with a clearance 15 based on the first junk slot 12, the clearance 15 communicates with the first junk slot 12, and the discharge of the cutting material is improved by means of the clearance 15. Preferably, the tooth gap 15 may be, but is not limited to, circular arc, triangular. Further, the surfaces on both sides of the tooth gap 15 are a first rake surface 16 and a second rake surface 17, respectively, the first rake surface 16 intersects with a bottom end surface 19 to form an end edge 18, a horizontal surface is machined by the end edge 18, and a vertical surface is machined by the first cutting edge 11. Further, the end edge 18 includes a first edge 181 and a second edge 183 recessed in the extending direction of the first edge 181. The second blade 183 is formed by concave grooves, preferably arc grooves, on the end blade 18, so that friction of the end blade 18 can be reduced, a chip accommodating space can be improved, and machining precision is improved. In a more preferred embodiment, the second edge 183 is connected to the first cutting edge 11 by a third edge 185 having a circular arc structure, which is excessively smooth and smooth, and improves the machining quality.
In a preferred technical solution, referring to fig. 3 and 5, the first cutting edge 11 is formed with a flank 111 and a rake 113, and a clearance groove 21 is provided between the flank 111 and the rake 113, and friction of the first cutting edge 11 can be reduced by setting the clearance groove 21, and a chip accommodating space can be further improved, so that machining precision is improved.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the claims, which follow, as defined in the claims.
Claims (7)
1. The utility model provides a can restrain processing cutter of burr, includes cutting portion and stalk portion that connects, its characterized in that, the free end of cutting portion is established as the bottom, the free end of stalk portion is established as the top, from the bottom to the top direction spiral be equipped with first cutting edge and with first chip groove that first cutting edge matches, be equipped with the second cutting edge between first cutting edge with the stalk portion, first chip groove towards the stalk portion direction extend form with the second chip groove that the second cutting edge matches, the helix angle of first cutting edge is 25-35, the length of second cutting edge is 1-2mm, the end that the second cutting edge is first cutting edge is the horizontal direction extension formation towards the stalk portion direction, the second cutting edge is parallel with the center pin of stalk portion.
2. The burr-suppressing machining tool according to claim 1, wherein the bottom end of the cutting portion is provided with a backlash based on the first chip groove, the backlash being provided with a first rake surface, the first rake surface intersecting with the bottom end face to form an end edge.
3. The burr-suppressing machining tool according to claim 2, wherein the end edge includes a first edge and a second edge recessed in an extending direction of the first edge.
4. A deburring tool as claimed in claim 3 wherein the second edge is connected to the first cutting edge by a third edge of arcuate configuration.
5. The burr-suppressing machining tool according to claim 1, wherein the first cutting edge is formed with a flank face and a rake face, and a clearance groove is provided between the flank face and the rake face.
6. The burr-suppressing machining tool of claim 1, wherein said first cutting edge is integrally formed with said second cutting edge.
7. The burr-suppressing machining tool according to claim 1, wherein an auxiliary chip groove having a circular arc structure is provided between the first chip groove and the second chip groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210190889.9A CN114535676B (en) | 2022-02-28 | 2022-02-28 | Machining tool capable of inhibiting burrs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210190889.9A CN114535676B (en) | 2022-02-28 | 2022-02-28 | Machining tool capable of inhibiting burrs |
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| CN114535676A CN114535676A (en) | 2022-05-27 |
| CN114535676B true CN114535676B (en) | 2023-08-29 |
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| Publication number | Publication date |
|---|---|
| CN114535676A (en) | 2022-05-27 |
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