CN205129023U - Drilling chamfer synthetics - Google Patents
Drilling chamfer synthetics Download PDFInfo
- Publication number
- CN205129023U CN205129023U CN201520872367.2U CN201520872367U CN205129023U CN 205129023 U CN205129023 U CN 205129023U CN 201520872367 U CN201520872367 U CN 201520872367U CN 205129023 U CN205129023 U CN 205129023U
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- CN
- China
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- head
- synthetics
- shank
- type flute
- chamfer
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Abstract
The utility model provides a drilling chamfer synthetics, belongs to hardware and tools and makes technical field, is equipped with conical surface subtotal cylinder part between head and stalk portion, and conical surface part links to each other with the head, and the cylinder part links to each other with the stalk portion, has the double helix groove of taking helix angle opening of head symmetry, and it has V type flute to open in the cylinder part, and V type flute links up with the double helix groove and meets. The utility model discloses novel structure, the theory of operation is clear, and the drill bit partially can be used for ordinary drilling, and the conical surface partially can be used for the drill way chamfer, and cylindrical portion can also carry out the processing of counter bore, has reduced manufacturing procedure, has practiced thrift the processing cost, has improved machining efficiency, its chamfer is felt relieved, precision, highly polished, has V type flute owing to opening again on the face of cylinder, and consequently the cutting is more brisk in drilling process, and the chip removal is more smooth, has reduced a large amount of cutting heats in the course of working, has improved the life of cutter, has improved production efficiency.
Description
Technical field
The utility model belongs to hardware & tools manufacturing technology field, relates to a kind of boring chamfering synthetics.
Background technology
Metalwork is in drilling process, and the roughing in hole, fine finishining, chamfering and counterbore processing are all completed by multiple manufacturing procedure, and each operation needs to adopt supporting machining tool, on the one hand, processes old and adds; On the other hand, in process, need to carry out multiple clamping to machining tool, after multiple clamping, positioning precision significantly reduces, and the machining accuracy in hole can not be guaranteed, and working (machining) efficiency also reduces.After the drill bit processing that current bore process adopts, accessible dimensional tolerance grade is IT13 ~ IT11, surface roughness value is Ra50 ~ 12.5 μm, but because fluted drill length is longer, bore the little and poor rigidity of core diameter, there is again the impact of chisel edge, therefore bore process exists following shortcoming: 1. the easy deflection of drill bit, because the impact centering of chisel edge is inaccurate, during incision, drill bit easily draws partially; And the rigidity of drill bit and guide effect poor, during cutting, drill bit easily bends; 2. aperture easily expands, and during drilling, drill bit two cutting edge radial load does not wait, the circular runout of drill bit all will cause borehole enlargement; 3. the surface quality in hole is poor, and drilling chip is wider, is forced to volume for helical form in hole, during outflow and hole wall occur to rub and scratch machined surface; 4. during drilling, axial force is large, and this is mainly caused by the chisel edge of drill bit, and during boring, the axial force of 50% and the moment of torsion of 15% are produced by chisel edge; 5. heat many and heat transfer, heat radiation difficulty, chip removal difficulty, cutting temperature is high; 6., due to extruding, friction, easily produce the flow harden of hole wall, cause difficulty to next procedure.
Utility model content
The purpose of this utility model is the deficiencies such as, cost high, chip removal not smooth, cutting force dispersion, machining accuracy low many for the operation existed in bore process, a kind of boring chamfering synthetics is proposed, this synthetics accurate positioning, multiple operation can be merged into an operation, can cut down finished cost, improve cutting-tool's used life, there is higher working (machining) efficiency.
The technical solution of the utility model is: a kind of boring chamfering synthetics, comprise head and shank, it is characterized in that: between described head and shank, be provided with tapered portion and barrel portion, described tapered portion is connected with described head, described barrel portion is connected with described shank, at the double spiral groove having band lead angle of described head symmetry, have V-type flute at described barrel portion, described V-type flute connects with described double spiral groove is coherent.
Described shank is the one in three bone knobs, hexagonal handle or circle handle.
Described hexagonal handle is quick-changing type structure, and six prisms at the middle part of hexagonal shank have R groove, and the radius of R groove is 1.5 ~ 4.5mm.
The coning angle of described tapered portion is 90 °.
The lead angle of described double spiral groove is 30 °.
The angle of described V-type flute is V-shape, and the angle of V-type flute is 90 °.
The drift angle of described head is 118 ° ± 5 °.
Described shank surface next-door neighbour's barrel portion has escape, and escape specification is 3 × 0.25.
The beneficial effects of the utility model are: the one boring chamfering synthetics that the utility model provides, novel structure, operation principle is clear, bit part may be used for common boring, and tapered portion may be used for orifice chamfer, and column part can also carry out the processing of counterbore, these procedure of processings can be accomplished without any letup, decrease manufacturing procedure, saved processing cost, improve working (machining) efficiency; Its chamfering is felt relieved, precision, highly polished, again owing to having V-type flute on the face of cylinder, and V-type flute connects with the double spiral groove of head is coherent, therefore cut more brisk in boring procedure, chip removal is more smooth, in process, reduce a large amount of heat in metal cuttings, improve cutting-tool's used life, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model external structure schematic diagram.
Fig. 2 is the main TV structure schematic diagram of the utility model.
In figure: shank 1, escape 2, barrel portion 3, tapered portion 4, head 5, double spiral groove 6, flute 7, R groove 8.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1-2, a kind of boring chamfering synthetics, comprise head 5 and shank 1, tapered portion 4 and barrel portion 3 is provided with between head 5 and shank 1, tapered portion 4 is connected with head 5, and barrel portion 3 is connected with shank 1, at the double spiral groove 6 having band lead angle of head 5 symmetry, have V-type flute 7 at barrel portion 3, V-type flute 7 connects with double spiral groove 6 is coherent.
As shown in Figure 1-2, a kind of boring chamfering synthetics, shank 1 is the one in three bone knobs, hexagonal handle or circle handle; Hexagonal handle is quick-changing type structure, and the radius that six prisms at the middle part of hexagonal shank have R groove 8, R groove 8 is 1.5 ~ 4.5mm, and in the present embodiment, the radius of R groove selects 3.5mm; The coning angle of tapered portion 4 is 90 °; The lead angle of double spiral groove 6 is 30 °; The angle of V-type flute 7 is V-shape, and the angle of V-type flute 7 is 90 °; The drift angle of head 5 is 118 ° ± 5 °; Shank 1 surface next-door neighbour's barrel portion 3 has escape 2, and escape 2 specification is 3 × 0.25.
This synthetics novel structure, operation principle is clear, bit part may be used for common boring, tapered portion may be used for orifice chamfer, column part can also carry out the processing of counterbore, and these procedure of processings can be accomplished without any letup, and decrease manufacturing procedure, save processing cost, improve working (machining) efficiency; Its chamfering is felt relieved, precision, highly polished, again owing to having V-type flute on the face of cylinder, and V-type flute connects with the double spiral groove of head is coherent, therefore cut more brisk in boring procedure, chip removal is more smooth, in process, reduce a large amount of heat in metal cuttings, improve cutting-tool's used life, improve production efficiency.
Claims (8)
1. a boring chamfering synthetics, comprise head (5) and shank (1), it is characterized in that: between described head (5) and shank (1), be provided with tapered portion (4) and barrel portion (3), described tapered portion (4) is connected with described head (5), described barrel portion (3) is connected with described shank (1), at the double spiral groove (6) having band lead angle that described head (5) is symmetrical, V-type flute (7) is had at described barrel portion (3), described V-type flute (7) connects with described double spiral groove (6) is coherent.
2. one boring chamfering synthetics according to claim 1, is characterized in that: described shank (1) is the one in three bone knobs, hexagonal handle or circle handle.
3. one boring chamfering synthetics according to claim 2, it is characterized in that: described hexagonal handle is quick-changing type structure, six prisms at the middle part of hexagonal shank have R groove (8), the radius of R groove (8) is 1.5 ~ 4.5mm.
4. one boring chamfering synthetics according to claim 1, is characterized in that: the coning angle of described tapered portion (4) is 90 °.
5. one boring chamfering synthetics according to claim 1, is characterized in that: the lead angle of described double spiral groove (6) is 30 °.
6. one boring chamfering synthetics according to claim 1, it is characterized in that: the angle of described V-type flute (7) is V-shape, the angle of V-type flute (7) is 90 °.
7. one boring chamfering synthetics according to claim 1, is characterized in that: the drift angle of described head (5) is 118 ° ± 5 °.
8. one boring chamfering synthetics according to claim 1, it is characterized in that: described shank (1) surface next-door neighbour's barrel portion (3) has escape (2), and escape (2) specification is 3 × 0.25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872367.2U CN205129023U (en) | 2015-11-05 | 2015-11-05 | Drilling chamfer synthetics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872367.2U CN205129023U (en) | 2015-11-05 | 2015-11-05 | Drilling chamfer synthetics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205129023U true CN205129023U (en) | 2016-04-06 |
Family
ID=55614848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520872367.2U Active CN205129023U (en) | 2015-11-05 | 2015-11-05 | Drilling chamfer synthetics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205129023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834493A (en) * | 2016-05-05 | 2016-08-10 | 覃世文 | Stepped drill bit for Buddha bead hole machining |
| CN106670550A (en) * | 2015-11-05 | 2017-05-17 | 扬州市实力五金工具工贸有限公司 | Drilling and chamfering synthesis tool and manufacturing method thereof |
-
2015
- 2015-11-05 CN CN201520872367.2U patent/CN205129023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670550A (en) * | 2015-11-05 | 2017-05-17 | 扬州市实力五金工具工贸有限公司 | Drilling and chamfering synthesis tool and manufacturing method thereof |
| CN105834493A (en) * | 2016-05-05 | 2016-08-10 | 覃世文 | Stepped drill bit for Buddha bead hole machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |