CN203390260U - Spiral-type chip-breaking drill - Google Patents
Spiral-type chip-breaking drill Download PDFInfo
- Publication number
- CN203390260U CN203390260U CN201320156891.0U CN201320156891U CN203390260U CN 203390260 U CN203390260 U CN 203390260U CN 201320156891 U CN201320156891 U CN 201320156891U CN 203390260 U CN203390260 U CN 203390260U
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- spiral
- edge
- type chip
- circular arc
- arc
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Abstract
The utility model discloses a spiral-type chip-breaking drill. The spiral-type chip-breaking drill comprises a clamping part (1), a deep-edge rapid cutting part (2), an arc sawtooth edge part (3) and a taper edge part (4), wherein an arc surface is additionally arranged at the front end of the deep-edge rapid cutting part (2). The spiral-type chip-breaking drill is characterized in that the arc sawtooth edge part (3) is the rear of a tool nose and in a six-edge arc-shaped spiral sawtooth shape. According to the structure of the spiral-type chip-breaking drill disclosed by the utility model, thorough renovation is performed in the aspects of length, diameter, angle, arc degree and the like of a tool by virtue of the characteristics of various specially-shaped parts, thus finishing machining for various curved surfaces by one tool as much as possible.
Description
Technical field
The utility model belongs to the automatic equipment of the deburring of the special-shaped aluminium castings such as automobile and motorcycle wheel hub and engine, especially about a kind of spiral minute bits, bores.
Background technology
The fluted drill that boring is used on all kinds of another parts, is that a kind of very economical is practical, and adaptable instrument, all takes much count of both at home and abroad to the raising of Twist Drill technology and innovation.Domestic cutter or the manual fluted drill grinding that mostly still uses general machine tool to use, this cutter just cannot be processed for some specific curved surfaces, also have machine tool to add man-hour owing to considering stressed large problem, so cutter is not very long, this has just brought burr in some deep holes of shaped piece to process and has put in place.The cutter grinding by hand, can meet, but grinding of some arc surfaces on cutter may just be difficult to realize, and occurs irregular cut channel while causing processing curve in the length of cutter and angle.
Summary of the invention
For above deficiency, this uses novel object to be to provide a kind of spiral minute bits to bore, and is to be improved by original six sword vertical drills, lengthened the part of clamping, the increase of cutter front end has an arc surface, and point of a knife is one section of cone angle, as much as possible allows a cutter complete the processing of various curved surfaces.
The technical solution of the utility model is achieved in the following ways: within spiral minute, bits bore, by retained part, the dark quick cutting tip of cutting edge, circular arc serrated knife blade part and tapering knife edge part, the front end of the dark quick cutting tip of cutting edge is set up an arc surface, it is characterized in that: described circular arc serrated knife blade is partly point of a knife rear portion, is six sword circular arc spiral saw dentations.
Described circular arc serrated knife blade is partly provided with two main cutting edges and chisel edge, and chisel edge is comprised of two long chisel edges and a hyphen sword.
Angle between two described main cutting edges is 135 ° ± 1 °.
The utility model structure, is to be improved by original six sword vertical drills, because burr processing does not need very large cutting force, this cutter, has not lengthened the part of clamping, and it can be processed degree of depth compare Shen hole; Cutter middle part retains the original apperance of original six sword slotting cutters, and it has guaranteed the good cutting power of cutter; The increase of cutter front end has an arc surface, and cutter relieving has ability and processes concave Iy curved, can allow the level and smooth zero defect of cut channel of cutter, and point of a knife is one section of cone angle, can rise up into tiny corner burr is removed.By the feature to various shaped pieces, aspect tool length, diameter, angle, circular arc Du Deng, carrying out innovation thoroughly.The cutter that allows as much as possible can complete the processing of various curved surfaces.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of circular arc serrated knife blade part.
In figure: 1 retained part, the quick cutting tip of 2 dark cutting edge, 3 circular arc serrated knife blade parts, 4 tapering knife edge parts, 5 two main cutting edges, 6 long chisel edges, 7 hyphen swords.
The specific embodiment
By Fig. 1, known, within spiral minute, bits bore, by retained part 1, the dark quick cutting tip 2 of cutting edge, circular arc serrated knife blade part 3, tapering knife edge part 4, two main cutting edges 5, long chisel edge 6 and hyphen swords 7, formed, the described more common length of retained part 1, the front end of the dark quick cutting tip 2 of cutting edge is set up an arc surface.Circular arc serrated knife blade part 3 is point of a knife rear portion, is six sword circular arc spiral saw dentations.The point of a knife of tapering knife edge part 4 is conical, and blade is high density helical cutting edge, and cutting edge is more shallow, and diameter is thinner.
By Fig. 2, being known, is the schematic diagram of circular arc serrated knife blade part.Circular arc serrated knife blade part 3 comprises that two main cutting edges 5, two chisel edges 6 and a hyphen sword 7 form, and the angle between two main cutting edges is 135 ° ± 1 °.
The utility model structure, six sword processing of slotting cutter formula in the middle of using when the general workpiece burr of processing require process velocity fast, it is whole that cutting edge in cutter is the darkest, stock-removing efficiency is the highest.When processing curve and unmanageable plane, use Roound edge, it is good that Roound edge is followed workpiece shape performance, also easily adjust to the right place adding man-hour cutter-orientation, this place's blade spiral angle all bores consistent with spiral minute bits with pitch, blade is zigzag, chip removal performance when jagged blade has improved Tool in Cutting, making it when high-speed cutting not can swaging clamp, improves the stability of work.Tapering knife edge part is for processing tiny burr and using cutter cannot all rise up in some small spaces in the situation that, its cutting edge is high density screw type, due to consider this part be cutter holding capacity minimum the cutting edge roundness of all designs of part more shallow.
Claims (3)
1. spiral minute bits bore, comprise retained part (1), the dark quick cutting tip of cutting edge (2), circular arc serrated knife blade part (3) and tapering knife edge part (4), the dark quick cutting tip of cutting edge (2) front end is set up an arc surface, it is characterized in that: described circular arc serrated knife blade part (3), for point of a knife rear portion, is six sword circular arc spiral saw dentations.
2. spiral minute according to claim 1 bits bore, and it is characterized in that: described circular arc serrated knife blade part (3) is provided with two main cutting edges (5) and chisel edge, and chisel edge is comprised of two long chisel edges (6) and a hyphen sword (7).
3. spiral minute according to claim 2 bits bore, and it is characterized in that: the angle between described two main cutting edges (5) is 135 ° ± 1 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320156891.0U CN203390260U (en) | 2013-04-01 | 2013-04-01 | Spiral-type chip-breaking drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320156891.0U CN203390260U (en) | 2013-04-01 | 2013-04-01 | Spiral-type chip-breaking drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203390260U true CN203390260U (en) | 2014-01-15 |
Family
ID=49901822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320156891.0U Expired - Fee Related CN203390260U (en) | 2013-04-01 | 2013-04-01 | Spiral-type chip-breaking drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203390260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091288A (en) * | 2020-07-27 | 2020-12-18 | 北京实验工厂有限责任公司 | Lengthened twist drill for processing elongated hole |
-
2013
- 2013-04-01 CN CN201320156891.0U patent/CN203390260U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091288A (en) * | 2020-07-27 | 2020-12-18 | 北京实验工厂有限责任公司 | Lengthened twist drill for processing elongated hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150401 |
|
| EXPY | Termination of patent right or utility model |