CN105499663A - Compound drill bit for thin-wall small hole machining - Google Patents
Compound drill bit for thin-wall small hole machining Download PDFInfo
- Publication number
- CN105499663A CN105499663A CN201610095581.0A CN201610095581A CN105499663A CN 105499663 A CN105499663 A CN 105499663A CN 201610095581 A CN201610095581 A CN 201610095581A CN 105499663 A CN105499663 A CN 105499663A
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- cutter head
- thin
- drill bit
- cutter
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/009—Stepped drills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a compound drill bit for thin-wall small hole machining. The compound drill bit for thin-wall small hole machining comprises a cutter rod (1) and a cutter body (2) which are detachably connected, the cutter body (2) is composed of a cutter handle (3) and a cutter head (4), the cutter head (4) is composed of a second cutter head (42) and a first cutter head (41) arranged at the front end of the second cutter head (42), multiple first cutting edges (43) are arranged at the front end of the first cutter head (41), a first cutter face (44) is arranged on the front side wall of each first cutting edge (43), multiple second cutting edges (45) are arranged at the front end of the second cutter head (42), the diameter of each second cutting edge (45) is larger than that of the corresponding first cutting edge (43), and a second cutter face (46) is arranged on the front side wall of each second cutting edge (45). The compound drill bit for thin-wall small hole machining has the advantages that the structure is simple, the machining efficiency is good, and the machining quality is high.
Description
Technical field
The present invention relates to the processing of thin-walled shoulder hole, particularly a kind of composite drill bit for the processing of thin-walled shoulder hole.
Background technology
In Process of Oil Well Drilling, because geology is comparatively complicated, the structure of the workpiece of therefore used instrument is comparatively complicated, and it is higher to its required precision, particularly a kind of inner core of oil drilling, there are in this inner core three thin cylinders, and require very high to the axiality of these three thin cylinders, and in thin cylinder, also to offer shoulder hole, screw thread is provided with in shoulder hole, therefore difficulty of processing is large especially, and traditional handicraft adopts depth drill or deep-hole boring, do not reach linearity requirement, easily position deflection is there is in process, thus affect last total run-out and position relationship, thus be difficult to the requirement ensureing machining accuracy, and traditional depth drill, adopt repeatedly feed to drill through more, its working (machining) efficiency is also lower.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, the composite drill bit for the processing of thin-walled shoulder hole that a kind of structure is simple, working (machining) efficiency good and crudy is high is provided.
Object of the present invention is achieved through the following technical solutions: a kind of composite drill bit for the processing of thin-walled shoulder hole, it comprises knife bar and cutter hub, described knife bar and cutter hub removably connect, described cutter hub is made up of hilt and cutter head, described cutter head is made up of the second cutter head and the first cutter head being arranged on the second cutter head front end, the first described cutter head front end is provided with multiple first cutting edge, and the front side wall of the first cutting edge is provided with the first knife face, the second described cutter head front end is provided with multiple second cutting edge, and the second cutting edge diameter is greater than the first cutting edge diameter, the front side wall of the second described cutting edge is provided with the second knife face.
The front end of described knife bar offers a blind hole, and the sidewall of blind hole offers screw, and described hilt inserts in blind hole, and on hilt, be provided with the locking face being convenient to screw lock.
Described locking face offers a V-type groove.
The second described cutting edge is six, and is evenly distributed on circumferentially same, and the angle of described second knife face and horizontal plane is 45 °.
The first described cutting edge is six, and is evenly distributed on circumferentially same, and the angle of described first knife face and horizontal plane is 45 °.
The present invention has the following advantages: composite drill bit of the present invention, be provided with the first cutter head and the second cutter head, by the first cutting edge and the second cutting edge, thin-wall hole is processed, make the processing capacity of the first cutting edge and the second cutting edge all less, thus the load reduced when drill bit drills through, thus reduce the risk of thin-wall hole distortion, improve crudy; And can be disposable processing to thin-wall hole machining, thus improve working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the partial schematic sectional view of knife bar
Fig. 3 is the structural representation one of cutter head
Fig. 4 is the structural representation two of cutter head
In figure, 1-knife bar, 2-cutter hub, 3-hilt, 4-cutter head, 5-locking face, 6-V type groove, 11-blind hole, 12-screw, 41-first cutter head, 42-second cutter head, 43-first cutting edge, 44-first knife face, 45-second cutting edge, 46-second knife face.
detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
As shown in Fig. 1 ~ Fig. 4, a kind of composite drill bit for the processing of thin-walled shoulder hole, it comprises knife bar 1 and cutter hub 2, described knife bar 1 removably connects with cutter hub 2, described cutter hub 2 is made up of hilt 3 and cutter head 4, described cutter head 4 is made up of with the first cutter head 41 being arranged on the second cutter head 42 front end the second cutter head 42, the first described cutter head 41 front end is provided with multiple first cutting edge 43, and the front side wall of the first cutting edge 43 is provided with the first knife face 44, the second described cutter head 42 front end is provided with multiple second cutting edge 45, and the second cutting edge 45 diameter is greater than the first cutting edge 43 diameter, the front side wall of the second described cutting edge 45 is provided with the second knife face 46.
In the present embodiment, as shown in Figures 2 and 3, the front end of described knife bar 1 offers a blind hole 11, the sidewall of blind hole 11 offers screw 12, described hilt 3 inserts in blind hole 11, and on hilt 3, be provided with the locking face 5 being convenient to screw lock, lock-screw, the front end of screw is made to be against on locking face 5, thus make hilt 3 that axis and radial displacement can not occur, further, in order to increase the locking intensity of screw and locking face 5, as shown in Figure 4, locking face 5 offers a V-type groove 6, V-type groove 6 adds the contact area of screw and locking face 5, thus can prevent hilt 3 from loosening.
In the present embodiment, the second described cutting edge 45 is six, and is evenly distributed on circumferentially same, and described second knife face 46 is 45 ° with the angle of horizontal plane.
In the present embodiment, the first described cutting edge 43 is six, and is evenly distributed on circumferentially same, and described first knife face 44 is 45 ° with the angle of horizontal plane.
The course of work of the present invention is as follows: after cutter hub 2 and knife bar 1 being assembled, first cutter head 41 is introduced in thin-wall hole, first cutting edge 43 first drills through thin-wall hole, thin-wall hole is expanded, then along with the second cutting edge 43 enters in thin-wall hole, second cutting edge drills through thin-wall hole again, compare with existing one-pass, its processing capacity diminishes, make thin-wall hole not yielding, its linearity processed is good, and compares with existing repeatedly feed, when ensureing crudy, turn improve working (machining) efficiency.
Claims (5)
1. the composite drill bit for the processing of thin-walled shoulder hole, it is characterized in that: it comprises knife bar (1) and cutter hub (2), described knife bar (1) and cutter hub (2) removably connect, described cutter hub (2) is made up of hilt (3) and cutter head (4), described cutter head (4) is made up of the second cutter head (42) and the first cutter head (41) of being arranged on the second cutter head (42) front end, described the first cutter head (41) front end is provided with multiple first cutting edge (43), and the front side wall of the first cutting edge (43) is provided with the first knife face (44), described the second cutter head (42) front end is provided with multiple second cutting edge (45), and the second cutting edge (45) diameter is greater than the first cutting edge (43) diameter, the front side wall of described the second cutting edge (45) is provided with the second knife face (46).
2. a kind of composite drill bit for the processing of thin-walled shoulder hole according to claim 1, it is characterized in that: the front end of described knife bar (1) offers a blind hole (11), the sidewall of blind hole (11) offers screw (12), described hilt (3) inserts in blind hole (11), and on hilt (3), be provided with the locking face (5) being convenient to screw lock.
3. a kind of composite drill bit for the processing of thin-walled shoulder hole according to claim 2, is characterized in that: described locking face (5) offers a V-type groove (6).
4. a kind of composite drill bit for the processing of thin-walled shoulder hole according to claim 1, it is characterized in that: described the second cutting edge (45) is six, and is evenly distributed on circumferentially same, described second knife face (46) is 45 ° with the angle of horizontal plane.
5. a kind of composite drill bit for the processing of thin-walled shoulder hole according to claim 1, it is characterized in that: described the first cutting edge (43) is six, and is evenly distributed on circumferentially same, described first knife face (44) is 45 ° with the angle of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095581.0A CN105499663A (en) | 2016-02-22 | 2016-02-22 | Compound drill bit for thin-wall small hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095581.0A CN105499663A (en) | 2016-02-22 | 2016-02-22 | Compound drill bit for thin-wall small hole machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105499663A true CN105499663A (en) | 2016-04-20 |
Family
ID=55708174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610095581.0A Pending CN105499663A (en) | 2016-02-22 | 2016-02-22 | Compound drill bit for thin-wall small hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105499663A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931674A (en) * | 2017-11-17 | 2018-04-20 | 中山市园丰精密刃具有限公司 | Golf club head screw hole forming cutter |
| CN114535665A (en) * | 2022-04-25 | 2022-05-27 | 成都飞机工业（集团）有限责任公司 | Hole making cutter and hole making method for weak-rigidity component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US421218A (en) * | 1890-02-11 | Combismed boring-tool | ||
| CN201357256Y (en) * | 2008-12-03 | 2009-12-09 | 沈森林 | Combined machine tool drill |
| CN103978245A (en) * | 2014-06-05 | 2014-08-13 | 赵夫超 | Manual drilling machine for drilling holes in thin plate |
| EP2826580A1 (en) * | 2013-07-17 | 2015-01-21 | Werkzeug Pichler GmbH & Co. KG | Drill bit with stepped drilling part |
| CN204209186U (en) * | 2014-09-26 | 2015-03-18 | 深圳市华阳通达精密机械有限公司 | Step deep hole machining is bored |
| CN104551106A (en) * | 2013-10-17 | 2015-04-29 | 常州埃特法斯工具有限公司 | Stepped combination drill |
| CN205362791U (en) * | 2016-02-22 | 2016-07-06 | 成都优拓优联科技有限公司 | A composite drill bit for thin wall hole machining |
-
2016
- 2016-02-22 CN CN201610095581.0A patent/CN105499663A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US421218A (en) * | 1890-02-11 | Combismed boring-tool | ||
| CN201357256Y (en) * | 2008-12-03 | 2009-12-09 | 沈森林 | Combined machine tool drill |
| EP2826580A1 (en) * | 2013-07-17 | 2015-01-21 | Werkzeug Pichler GmbH & Co. KG | Drill bit with stepped drilling part |
| CN104551106A (en) * | 2013-10-17 | 2015-04-29 | 常州埃特法斯工具有限公司 | Stepped combination drill |
| CN103978245A (en) * | 2014-06-05 | 2014-08-13 | 赵夫超 | Manual drilling machine for drilling holes in thin plate |
| CN204209186U (en) * | 2014-09-26 | 2015-03-18 | 深圳市华阳通达精密机械有限公司 | Step deep hole machining is bored |
| CN205362791U (en) * | 2016-02-22 | 2016-07-06 | 成都优拓优联科技有限公司 | A composite drill bit for thin wall hole machining |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931674A (en) * | 2017-11-17 | 2018-04-20 | 中山市园丰精密刃具有限公司 | Golf club head screw hole forming cutter |
| CN114535665A (en) * | 2022-04-25 | 2022-05-27 | 成都飞机工业（集团）有限责任公司 | Hole making cutter and hole making method for weak-rigidity component |
| CN114535665B (en) * | 2022-04-25 | 2022-09-16 | 成都飞机工业（集团）有限责任公司 | Hole making method for weak rigid member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106694963B (en) | Stepped boring and drilling compound cutter and boring and drilling processing technology thereof | |
| CN205362791U (en) | A composite drill bit for thin wall hole machining | |
| CN105499663A (en) | Compound drill bit for thin-wall small hole machining | |
| CN103706867A (en) | Dovetail milling cutter | |
| CN208341910U (en) | It is a kind of to exempt from tool changing combination cutter for hole in piece part rapid processing | |
| CN205324818U (en) | Be used for thin wall shoulder hole chamfer umbrella tooth T type milling cutter | |
| CN204892997U (en) | Two bore a boring combination cutting tool with adjustable | |
| CN205218237U (en) | Composite forming reamer and thread fraise's PCD cutter | |
| CN208628484U (en) | Deep hole drilling and boring machine boring device for long-axle workpieces | |
| CN104551245A (en) | Composite reamer | |
| CN102275018A (en) | Drilling-tapping integrated composite screw tap | |
| CN205129023U (en) | Drilling chamfer synthetics | |
| CN209830377U (en) | Wire clamping drill | |
| CN210498493U (en) | Step hole compound cutter | |
| CN103658775A (en) | Blind hole combined drill reamer | |
| TWM440834U (en) | Composite drilling and milling tool | |
| CN202219330U (en) | Transitional jacket for boring cutters | |
| CN105499680A (en) | Bevel gear T-shaped milling cutter for chamfering thin-wall stepped hole | |
| CN211162027U (en) | Boring device for pneumatic actuator cylinder | |
| CN104439346A (en) | Floating clamp for boring cutter bar | |
| CN104889459A (en) | Cutter | |
| CN206747653U (en) | Compound tool is bored in a kind of ladder boring | |
| CN103722242A (en) | Multi-edge reamer | |
| CN216828965U (en) | Rough and fine reaming combined reamer | |
| CN205008596U (en) | Forced air cooling diesel engine box processing bore hole chamfer gang tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
|
| RJ01 | Rejection of invention patent application after publication |