CN207414433U - The indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe - Google Patents
The indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe Download PDFInfo
- Publication number
- CN207414433U CN207414433U CN201721110053.4U CN201721110053U CN207414433U CN 207414433 U CN207414433 U CN 207414433U CN 201721110053 U CN201721110053 U CN 201721110053U CN 207414433 U CN207414433 U CN 207414433U
- Authority
- CN
- China
- Prior art keywords
- knife
- cutter hub
- handle
- indexable
- knife rest
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model is related to a kind of indexable U-shaped drill bits of knife rest pinhole type of numerically controlled lathe,It is the handle of a knife of column structure and cylinder with part hollow structure with global shape,And at least a portion length there are one or several spiral shape chip spaces cutter hub,The handle of a knife and cutter hub are that metal material is made,The handle of a knife is lengthening handle of a knife,For being clamped on the indexable knife rest of numerical control screw thread lathe by chuck,The cutter hub is connected to one end of handle of a knife,The diameter of cutter hub is using conical design from thick to thin decrescence,To realize in pipe end API SPEC 5DP requirements seamlessly transitting for reamer shape in hole forming Miu,The end of cutter hub is handled by thickening,And it is arranged with the blade for cutting in the both sides of cutter hub end,The utility model is simple in structure,Using lengthening handle of a knife,Realization is clamped on the indexable knife rest of numerical control screw thread lathe by chuck,Add cutter holding stability.
Description
Technical field
The utility model belongs to aperture manufacture field, and in particular to a kind of indexable knife rest pinhole type of numerically controlled lathe is U-shaped
Drill bit.
Background technology
The important part that drilling rod is petroleum drilling and mining and geological prospecting enterprises largely use.In drilling process, with drill bit
It deeply needs to gradually increase drilling rod.Vehicle has internal and external screw thread to two ends of drill respectively, by both ends internal and external screw thread connect by branch,
Therefore entire drilling rod is made of tube body and nipple, coupling three parts.With modern oil well and the deep-well of well, underground is made
The deterioration of industry environment and the increase of drilling rod weight itself, it is strong to the connection between drilling rod between drill pipe body and tool joint
Degree requirement also constantly increases, and is actually also constantly to require drilling rod intensity enhancing.And enhance the bonding strength of drill rod pipe end, it can
Pass through following several approach：
A. suitably increase the sectional area of pipe end connecting portion, that is, increase pipe end wall thickness；
B. high-strength or super Materials with High Strength is selected；
C. increase the sectional area of pipe end connecting portion simultaneously and select high-strength or super Materials with High Strength.
And it is generally to use method at present to select the first cross-sectional area i.e. end upsetting for increasing pipe end connecting portion
One of.End upsetting is that high strength steel tube end is carried out local heating deformation, makes internal diameter, outer diameter that a degree of change occur
Become, reaching end wall thickness increases, to enhance its bonding strength.Three kinds of end upsetting mode point, i.e., in thickening, external upset (EU) and interior
External upset (EU).With the increasingly maturation of process for upsetting, thicken than being continuously improved.Pipe end has been thickeied after Overheating Treatment, carries out pipe end
Inside and outside round turning, scale removal and tiny thicken generate the surface defects such as fold.Pipe end endoporus machining process is commonly used
Inner hole boring tool carries out the cutting process of metal material.And the limitation of this kind of method is small-bore endoporus cutting.Small-bore endoporus
Boring cutter is small there are cutting data, and cutting speed is low, and hole size is by knife, therefore feed number increases, and seriously affects production efficiency.
The content of the invention
Technical problem to be solved in the utility model is to overcome deficiency of the prior art, and providing a kind of numerically controlled lathe can
The U-shaped drill bit of rotating tool-carrier pinhole type, the drill bit can be used for machining small footpath endoporus, effectively reduce feed number, solve
In pipe end API SPEC 5DP requirements in hole forming Miu reamer shape transition, reduce stress concentration, improve in be also molded matter
Amount, drastically increases production efficiency.
The technical solution of the utility model：A kind of indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe has whole shape
Shape for column structure and cylinder have on the handle of a knife of part hollow structure and at least a portion length there are one or several spirals
The cutter hub of shape chip space, the handle of a knife and cutter hub are that metal material is made, and the handle of a knife is lengthens handle of a knife, in numerical control spiral shell
Clamped on the indexable knife rest of whim bed by chuck, the cutter hub is connected to one end of handle of a knife, the diameter of cutter hub use by
It is thick to thin conical design decrescence, to realize in pipe end API SPEC 5DP requirements the smoothed of reamer shape in hole forming Miu
It crosses, the end of cutter hub is handled by thickening, and is arranged with the blade for cutting in the both sides of cutter hub end.
Further, for the diameter of the cutter hub using conical design from thick to thin decrescence, the taper of cutter hub is 10 30
Degree.
Further, the cutter hub is equipped with two along the concave helical flute of cutter hub.
Further, the handle of a knife is column structure, and part is hollow, and the length of handle of a knife is 165mm.
Further, the cutter hub is the entity cone structure of diameter from thick to thin, and the length of cutter hub is 235mm.
The utility model has the advantages that compared with prior art：
1st, the utility model is simple in structure, using handle of a knife is lengthened, realizes and passes through on the indexable knife rest of numerical control screw thread lathe
Chuck is clamped, and adds cutter holding stability.
2nd, the end of cutter hub is handled by thickening, and is arranged with cutting tip in the both sides of cutter hub end so that pipe end
Thicken endoporus and thicken size uniform, dimensional uniformity is good, solve since clamping deviation causes tube end maching surplus uneven and
Knife bar is caused to vibrate, two side blades participate in cutting simultaneously had both increased cutter stability, while reduced cutting force, and then ensured and prolong
Numerically-controlled machine tool rest service life is grown.
3 cutter hub diameters mainly solve hole forming in pipe end API SPEC 5DP requirements using design from thick to thin decrescence
The transition of reamer shape in Miu is controlled by programming of NC-Lathe and trims Miu transitions smooths.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the usage state diagram of the utility model.
In figure：1- three-jaw chucks, 2- workpiece, 3-U type drill bits, 4- numerically-controlled invertible knife rests, 5- boring cutter jackets, 6- handle of a knifes,
7- cutter hubs, 8- blades, 9- chip spaces.
Specific embodiment
The utility model is further described with reference to Figure of description, so that those skilled in the art can be more
Understand the technical solution of the utility model well.
A kind of indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe, as shown in Figure 1, the drill bit has global shape
For column structure and cylinder have on the handle of a knife 6 of part hollow structure and at least a portion length there are one or several spirals
The cutter hub 7 of shape chip space, the handle of a knife 6 and cutter hub 7 are that metal material is made.The handle of a knife is column to lengthen handle of a knife
Body structure, and part is hollow, the length of handle of a knife is 165mm, for passing through chuck on the indexable knife rest of numerical control screw thread lathe
It is clamped, to increase cutter holding stability.The cutter hub 7 is connected to one end of handle of a knife 6, and the diameter of cutter hub 7 is used by thick
To conical design carefully decrescence, the taper of cutter hub is 10 30 degree, to realize hole forming Miu in pipe end API SPEC 5DP requirements
Interior reamer shape seamlessly transits, and during processing, is controlled by programming of NC-Lathe and trims Miu transitions smooths.It is and traditional U-shaped
Bore, can only the consistent size of drill diameter endoporus.The end of cutter hub 7 is handled by thickening, and symmetrical in the both sides of 7 end of cutter hub
Equipped with the blade 8 for cutting.Blade 8 is symmetrical arranged, and effect is that end upsetting endoporus thickens size uniform, dimensional uniformity
Good, to solve since clamping deviation causes tube end maching surplus uneven knife bar to be caused to vibrate, two side blades are participated in cut simultaneously
Cutting increases cutter stability and reduces cutting force, so as to ensure and extend numerically-controlled machine tool rest service life.And traditional processing
Center bores center insert with U and is only available for drilling solid core material, and for the hollow product of endoporus, traditional U-shaped drill blade is made without cutting
With.The cutter hub is the entity cone structure of diameter from thick to thin, and the length of cutter hub is 235mm.Two edges are equipped on cutter hub
The concave helical flute of cutter hub, for cutting swarf to be discharged.
In use, as shown in Fig. 2, by 2 clamping of workpiece on the three-jaw chuck 1 of numerically-controlled machine tool, with boring cutter jacket 5 in number
It controls and adjusts lathe center on indexable knife rest 4（It is adjusted by gasket）, chuck 5 is compressed, U-shaped drill bit 3 is inserted into 5 hole of chuck
It is interior, drill bit is adjusted according to pipe end endoporus turning length to be processed and stretches out jacket length, cutting process is write, to knife and cuts
It cuts.
Above-described embodiment is only used for those skilled in the art understand that the technical solution of the utility model, and be not to its into
Row limitation, all any modification, improvement or equivalent substitutions made within technical solutions of the utility model should be included in this reality
Within new protection domain.
Claims (5)
1. the indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe, with global shape for column structure and cylinder is with part
On the handle of a knife of hollow structure and at least a portion length there are one or several spiral shape chip spaces cutter hub, the handle of a knife and
Cutter hub is that metal material is made, it is characterized in that the handle of a knife is lengthening handle of a knife, in the indexable knife rest of numerical control screw thread lathe
Upper to be clamped by chuck, the cutter hub is connected to one end of handle of a knife, and the diameter of cutter hub is using taper from thick to thin decrescence
Design, to realize in pipe end API SPEC 5DP requirements seamlessly transitting for reamer shape in hole forming Miu, the end of cutter hub passes through
Thickening is handled, and is arranged with the blade for cutting in the both sides of cutter hub end.
2. the indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe according to claim 1, it is characterized in that：The cutter hub
Diameter using conical design from thick to thin decrescence, the taper of cutter hub is 10 30 degree.
3. the indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe according to claim 1, it is characterized in that：The cutter hub
Two are equipped with along the concave helical flute of cutter hub.
4. the indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe according to claim 1, it is characterized in that：The handle of a knife
For column structure, and part is hollow, and the length of handle of a knife is 165mm.
5. the indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe according to claim 1, it is characterized in that：The cutter hub
For the entity cone structure of diameter from thick to thin, the length of cutter hub is 235mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721110053.4U CN207414433U (en) | 2017-08-31 | 2017-08-31 | The indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721110053.4U CN207414433U (en) | 2017-08-31 | 2017-08-31 | The indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207414433U true CN207414433U (en) | 2018-05-29 |
Family
ID=62315358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721110053.4U Expired - Fee Related CN207414433U (en) | 2017-08-31 | 2017-08-31 | The indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207414433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363302A (en) * | 2017-08-31 | 2017-11-21 | 山西风雷钻具有限公司 | The indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe |
-
2017
- 2017-08-31 CN CN201721110053.4U patent/CN207414433U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363302A (en) * | 2017-08-31 | 2017-11-21 | 山西风雷钻具有限公司 | The indexable U-shaped drill bit of knife rest pinhole type of numerically controlled lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20190831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |