CN203936430U - A kind of adjustable subland drill - Google Patents
A kind of adjustable subland drill Download PDFInfo
- Publication number
- CN203936430U CN203936430U CN201420378750.8U CN201420378750U CN203936430U CN 203936430 U CN203936430 U CN 203936430U CN 201420378750 U CN201420378750 U CN 201420378750U CN 203936430 U CN203936430 U CN 203936430U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- hole
- sleeve
- manhole
- little
- 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.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a kind of adjustable subland drill, and this subland drill comprises: large drill bit, adjustment screw, little drill bit, sleeve; Whole large drill bit is cylindrical structural, and its center is provided with manhole, and manhole longitudinally runs through whole large drill bit; Middle part opposite end at large drill bit is laterally respectively provided with a unthreaded hole and screwed hole simultaneously; One end at described large drill bit is provided with trochoidal surface, the cutting edge that the other end is large drill bit; Described little drill bit is positioned at the manhole of large drill bit, can in whole manhole, move up and down; The horizontal even parallel through hole that size is identical that is provided with on bradawl head; Described sleeve set is at the outer surface of little drill bit; Opposite end at sleeve is provided with mounting hole; In one end, be provided with earhole; Described adjustment screw tightens together large drill bit, little drill bit, sleeve through unthreaded hole, through hole, mounting hole, screwed hole.The utility model bores footpath and drilling depth all can convert, and can effectively guarantee the concentricity of shoulder hole.
Description
Technical field
The utility model belongs to mechanical manufacturing field, particularly a kind of adjustable subland drill.
Background technology
At machinery industry, the processing of shoulder hole is very general, so subland drill arises at the historic moment.But there is certain defect in existing step drill, can be disposable make a call to 2 holes or 3 holes, but the degree of depth of aperture and shoulder hole fixes, cannot adjust.That is to say that a subland drill can only process by corresponding one group of shoulder hole.
Utility model content
For overcoming above-mentioned defect, the technical problems to be solved in the utility model is to provide a kind of simple in structure, easy to operate and can adjustment aperture and the drill bit of hole depth.
An adjustable subland drill, this subland drill comprises: large drill bit, adjustment screw, little drill bit, sleeve; Whole large drill bit is cylindrical structural, and its center is provided with manhole, and manhole longitudinally runs through whole large drill bit; Middle part opposite end at large drill bit is laterally respectively provided with a unthreaded hole and screwed hole simultaneously; One end at described large drill bit is provided with trochoidal surface, the cutting edge that the other end is large drill bit; Described little drill bit is positioned at the manhole of large drill bit, can in whole manhole, move up and down; The horizontal even parallel through hole that size is identical that is provided with on bradawl head; Described sleeve set is at the outer surface of little drill bit; Opposite end at sleeve is provided with mounting hole; In one end, be provided with earhole; Described adjustment screw tightens together large drill bit, little drill bit, sleeve through unthreaded hole, through hole, mounting hole, screwed hole.
The wall thickness of described sleeve is 0.5～2 ㎜.
The number of described through hole is 2～5.
The adjustable subland drill of the utility model has been broken traditional shoulder hole can not convert the situation of boring footpath and drilling depth, this subland drill both can have been changed the different drill bits that bore footpath, drilling depth can be adjusted as required again, and the concentricity requirement of shoulder hole can be effectively guaranteed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adjustable subland drill of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, a kind of adjustable subland drill, this drill bit comprises: large drill bit 1, adjustment screw 2, bradawl head 4, sleeve 7.Whole large drill bit 1 is cylindrical structural, and its center is provided with manhole 11, and manhole 11 longitudinally runs through whole large drill bit 1; Middle part opposite end at large drill bit 1 is laterally respectively provided with a unthreaded hole 3 and screwed hole 10 simultaneously; One end at large drill bit 1 is provided with trochoidal surface 5, for machine tool chief axis tight fit; The other end is the cutting edge of large drill bit 1.Bradawl head 4 is positioned at the manhole 11 of large drill bit 1, can in whole manhole 11, move up and down; Horizontal even parallel 2～5 through holes 8 that size is identical that are provided with on bradawl head 4.Sleeve 7 is sleeved on the outer surface of bradawl head 4; Opposite end at sleeve 7 is provided with mounting hole 9; In one end, be provided with earhole 6, be convenient to sleeve 7 to move up and down.Adjustment screw 2 tightens together large drill bit 1, bradawl head 4, sleeve 7 through unthreaded hole 3, through hole 8, mounting hole 9, screwed hole 10.
The adjustable drill bit of the utility model is when work, first bradawl head 4 is packed in the longitudinal hole 11 of large drill bit 1, according to required drilling depth, regulate the position of through hole 8, then according to the gap between large and small drill bit, be set with corresponding sleeve 7, adjust the position between large and small drill bit and sleeve, then by adjustment screw 2, tightened together, finally the trochoidal surface by large drill bit 15 and machine tool chief axis tight fit by the subland drill assembling.The wall thickness of the utility model middle sleeve 7 is 0.5～2 ㎜, because the size of longitudinal manhole 11 of large drill bit 1 is fixed, if the diameter of bradawl head 4 is different, the gap between large and small drill bit is different, the sleeve 7 that adds different wall, can prevent that bradawl head 4 from rocking in the manhole 11 of large drill bit 1, to guarantee the crudy of shoulder hole.
Claims (3)
1. an adjustable subland drill, is characterized in that: this subland drill comprises: large drill bit (1), adjustment screw (2), little drill bit (4), sleeve (7); Whole large drill bit (1) is cylindrical structural, and its center is provided with manhole (11), and manhole (11) longitudinally runs through whole large drill bit (1); Middle part opposite end at large drill bit (1) is laterally respectively provided with a unthreaded hole (3) and screwed hole (10) simultaneously; In one end of described large drill bit (1), be provided with trochoidal surface (5), the other end is the cutting edge of large drill bit (1); Described little drill bit (4) is positioned at the manhole (11) of large drill bit (1), can in whole manhole (11), move up and down; At the upper laterally even parallel through hole (8) that size is identical that is provided with of little drill bit (4); Described sleeve (7) is sleeved on the outer surface of little drill bit (4); Opposite end at sleeve (7) is provided with mounting hole (9); In one end, be provided with earhole (6); Described adjustment screw (2) tightens together large drill bit (1), little drill bit (4), sleeve (7) through unthreaded hole (3), through hole (8), mounting hole (9), screwed hole (10).
2. adjustable subland drill according to claim 1, is characterized in that: the wall thickness of described sleeve (7) is 0.5～2 ㎜.
3. adjustable subland drill according to claim 1, is characterized in that: the number of described through hole (8) is 2～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378750.8U CN203936430U (en) | 2014-07-10 | 2014-07-10 | A kind of adjustable subland drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378750.8U CN203936430U (en) | 2014-07-10 | 2014-07-10 | A kind of adjustable subland drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203936430U true CN203936430U (en) | 2014-11-12 |
Family
ID=51855778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420378750.8U Expired - Fee Related CN203936430U (en) | 2014-07-10 | 2014-07-10 | A kind of adjustable subland drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203936430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084625A (en) * | 2014-07-10 | 2014-10-08 | 遵义长征电器防爆设备有限责任公司 | Adjustable step drill bit |
-
2014
- 2014-07-10 CN CN201420378750.8U patent/CN203936430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084625A (en) * | 2014-07-10 | 2014-10-08 | 遵义长征电器防爆设备有限责任公司 | Adjustable step drill bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204053021U (en) | A kind of round-disk shape workpiece Quick drilling tool | |
| CN204262779U (en) | Shaft forgings drill jig positioning tool | |
| CN104084625A (en) | Adjustable step drill bit | |
| CN203253977U (en) | Drill bit with adjustable drill hole external diameters | |
| CN204194882U (en) | A kind of high pressure gear pump body auxiliary bore hole frock | |
| CN203936430U (en) | A kind of adjustable subland drill | |
| CN204545516U (en) | A kind of adjustable in length drill bit | |
| CN203936429U (en) | A kind of Novel drilling device | |
| CN204603389U (en) | A kind of adjustable combination subland drill | |
| CN202964204U (en) | Threading clamp | |
| CN203944890U (en) | A kind of for processing the brill milling composite cutter of through hole key grooves | |
| CN105880660A (en) | Method for machining through deep holes | |
| CN205362797U (en) | A anchor clamps for glass drilling | |
| CN204295035U (en) | A kind of high rigidity handle device | |
| CN204322178U (en) | A kind of drill | |
| CN201913336U (en) | Tapping centralizer | |
| CN207982470U (en) | A kind of chasing bar for internal thread machining | |
| CN203992502U (en) | Novel drilling device | |
| CN204525427U (en) | A kind of adjustable numerical control scriber | |
| CN103801949A (en) | Jig for machining inclined hole in cylindrical face | |
| CN204397382U (en) | A kind of drill jig | |
| CN205147398U (en) | Boring grab of center runner outer lane | |
| CN204818892U (en) | Motor end cover drilling positioner | |
| CN204565210U (en) | A kind of rear-end of spindle lid boring grab | |
| CN204248043U (en) | A kind of comprehensive one cutter head |
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: 20141112 Termination date: 20150710 |
|
| EXPY | Termination of patent right or utility model |