CN104625170A - Stepped drill bit - Google Patents
Stepped drill bit Download PDFInfo
- Publication number
- CN104625170A CN104625170A CN201410848854.5A CN201410848854A CN104625170A CN 104625170 A CN104625170 A CN 104625170A CN 201410848854 A CN201410848854 A CN 201410848854A CN 104625170 A CN104625170 A CN 104625170A
- Authority
- CN
- China
- Prior art keywords
- drill rod
- drilling rod
- stacks
- mandrel
- sleeving
- 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
- 238000005553 drilling Methods 0.000 claims description 37
- 238000003754 machining Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
Abstract
The invention relates to a stepped drill bit which comprises a central spindle drill rod, at least one sleeving drill rod and an elastic gasket. Positioning pin holes are evenly distributed in the central spindle drill rod. The outer surface of the central spindle drill rod is wrapped by the sleeving drill rod. The sleeving drill rod and the central spindle drill rod are coaxially distributed. At least two positioning pins are arranged on the sleeving drill rod. The sleeving drill rod is connected with the positioning pin holes in the central spindle drill rod through the positioning pins. The elastic gasket is arranged between contact faces of the central spindle drill rod and the sleeving drill rod. The maximum diameter of the sleeving drill rod is not larger than 10 times the diameter of the central spindle drill rod. The stepped drill bit is simple and reasonable in structure, reasonable in design, high in using flexibility and capable of flexibly using the drill rods in a combined and matched mode according to actual using needs, so that the requirement for machining stepped holes of various types is met; on the one hand, the hole machining efficiency and precision are improved; on the other hand, the defects that a traditional stepped drill rod is fixed in structure and not convenient to maintain and replace are overcome, so that the drill rod using and maintenance efficiency are improved, and the service life of the drill rods is prolonged.
Description
Technical field
The present invention relates to a kind of Step drill, belong to machining tool technical field.
Background technology
Carrying out in machining production at present, polytype stepped hole class formation dug by frequent needs on workpiece to be added, in order to meet the needs of such processing, the current Step drill that mainly utilizes carries out drilling processing, but its structure of presently used Step drill integral structure often, this kind of structure causes Step drill diameter on the one hand and cannot adjust flexibly according to use needs, thus cause needing in production to be equipped with polytype Step drill with the needs of satisfied use, add drill bit use cost and management, maintenance work amount, also result on the other hand after drill bit local is damaged, whole drill bit is caused to be scrapped, maintenance repair rate is extremely low, substantially reduce the service life of Step drill, cause the serious wasting of resources, therefore, for this present situation, in the urgent need to developing a kind of Step drill equipment of invention to meet the needs of actual production.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of Step drill, this invention is simple and reasonable, reasonable in design, use flexibility is high, the needs that can use according to reality, flexibly combination collocation use is carried out to drilling rod, thus meet the processing needs of polytype stepped hole, improve efficiency and the machining accuracy of hole machined on the one hand, also overcome traditional step jackrod structure on the other hand and fix, be not easy to the drawback of maintain and replace, thus improve use and the maintenance efficiency of drilling rod, extend the service life of drilling rod.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of Step drill, is characterized in that: described invention Step drill comprises mandrel drilling rod, cover stacks and elastomeric pad, uniform dowel hole on wherein said mandrel drilling rod, described cover stacks at least one, and is coated on mandrel drilling rod outer surface; Described cover stacks establishes at least two alignment pins, and is connected with the dowel hole on mandrel drilling rod by alignment pin; Separately establish elastomeric pad between described mandrel drilling rod and socket drilling rod contact surface, described cover stacks maximum gauge is not more than 10 times of mandrel drill pipe diameter.
According to above-mentioned a kind of Step drill, wherein, described cover stacks inner surface separately establishes the spiral projection matched with mandrel drilling rod helical groove structure.
According to above-mentioned a kind of Step drill, wherein, described cover stacks is connected with mandrel drilling rod helicla flute by spiral projection.
According to above-mentioned a kind of Step drill, wherein, when described cover stacks is many, then overlaps stacks by major diameter successively and be coated on outside minor diameter cover stacks, and connected by alignment pin;
According to above-mentioned a kind of Step drill, wherein, overlap described in two between stacks and be provided with elastomeric pad.
According to above-mentioned a kind of Step drill, wherein, described cover stacks and mandrel drilling rod coaxially distribute.
The present invention is simple and reasonable, reasonable in design, use flexibility is high, and the needs that can use according to reality, carry out combination collocation use to drilling rod flexibly, thus meet the processing needs of polytype stepped hole, improve efficiency and the machining accuracy of hole machined on the one hand, also overcome traditional step jackrod structure on the other hand and fix, be not easy to the drawback of maintain and replace, thus improve use and the maintenance efficiency of drilling rod, extend the service life of drilling rod.
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
A kind of Step drill as described in Figure 1, comprises mandrel drilling rod 1, cover stacks 2 and elastomeric pad 3, wherein uniform dowel hole 4 on mandrel drilling rod 1, cover stacks 2 at least one, and is coated on mandrel drilling rod 1 outer surface, and coaxially distributes in mandrel drilling rod 1.
In the present embodiment, described cover stacks 2 establishes at least two alignment pins 5, and be connected with the dowel hole 4 on mandrel drilling rod 1 by alignment pin 5, separately establish elastomeric pad 3 between mandrel drilling rod 1 and cover stacks 2 contact surface, cover stacks 2 maximum gauge is not more than 10 times of mandrel drilling rod 1 diameter.
In the present embodiment, described cover stacks 2 inner surface separately establishes the spiral projection 6 matched with mandrel drilling rod 1 helical groove structure, and is connected with mandrel drilling rod 1 helicla flute by spiral projection 6.
In the present embodiment, when described cover stacks 2 is many, then overlaps stacks 2 by major diameter successively and be coated on outside minor diameter cover stacks 2, and connected by alignment pin 5, and establish elastomeric pad 3 between two cover stacks 2.
The present invention is simple and reasonable, reasonable in design, use flexibility is high, and the needs that can use according to reality, carry out combination collocation use to drilling rod flexibly, thus meet the processing needs of polytype stepped hole, improve efficiency and the machining accuracy of hole machined on the one hand, also overcome traditional step jackrod structure on the other hand and fix, be not easy to the drawback of maintain and replace, thus improve use and the maintenance efficiency of drilling rod, extend the service life of drilling rod.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. a Step drill, is characterized in that: described Step drill comprises mandrel drilling rod, cover stacks and elastomeric pad, uniform dowel hole on wherein said mandrel drilling rod, described cover stacks at least one, and is coated on mandrel drilling rod outer surface; Described cover stacks establishes at least two alignment pins, and is connected with the dowel hole on mandrel drilling rod by alignment pin; Separately establish elastomeric pad between described mandrel drilling rod and socket drilling rod contact surface, described cover stacks maximum gauge is not more than 10 times of mandrel drill pipe diameter.
2. a kind of Step drill according to claim 1, is characterized in that, described cover stacks inner surface separately establishes the spiral projection matched with mandrel drilling rod helical groove structure.
3. a kind of Step drill according to claim 2, is characterized in that, described cover stacks is connected with mandrel drilling rod helicla flute by spiral projection.
4. a kind of Step drill according to claim 1 or 3, is characterized in that, when described cover stacks is many, then overlaps stacks by major diameter successively and is coated on outside minor diameter cover stacks, and connected by alignment pin.
5. a kind of Step drill according to claim 4, is characterized in that, overlaps between stacks and be provided with elastomeric pad described in two.
6. a kind of Step drill according to claim 4, is characterized in that, described cover stacks and mandrel drilling rod coaxially distribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848854.5A CN104625170A (en) | 2014-12-31 | 2014-12-31 | Stepped drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848854.5A CN104625170A (en) | 2014-12-31 | 2014-12-31 | Stepped drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104625170A true CN104625170A (en) | 2015-05-20 |
Family
ID=53204664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410848854.5A Pending CN104625170A (en) | 2014-12-31 | 2014-12-31 | Stepped drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104625170A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068605U (en) * | 1992-07-02 | 1994-02-04 | 有限会社トヨバックス | 2 step drill |
| CN201735847U (en) * | 2010-07-15 | 2011-02-09 | 蒋建伟 | Multi-functional drill |
| CN203171026U (en) * | 2013-04-19 | 2013-09-04 | 苏州文鼎模具有限公司 | Stepped drill capable of adjusting stepped hole depths |
| 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 |
| CN204565229U (en) * | 2014-12-31 | 2015-08-19 | 苏州欧美克合金工具有限公司 | A kind of Step drill |
-
2014
- 2014-12-31 CN CN201410848854.5A patent/CN104625170A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068605U (en) * | 1992-07-02 | 1994-02-04 | 有限会社トヨバックス | 2 step drill |
| CN201735847U (en) * | 2010-07-15 | 2011-02-09 | 蒋建伟 | Multi-functional drill |
| CN203171026U (en) * | 2013-04-19 | 2013-09-04 | 苏州文鼎模具有限公司 | Stepped drill capable of adjusting stepped hole depths |
| 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 |
| CN204565229U (en) * | 2014-12-31 | 2015-08-19 | 苏州欧美克合金工具有限公司 | A kind of Step drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204603400U (en) | A kind of combined drill rod | |
| CN104786072A (en) | Flywheel central flange hole double-station drilling positioning tool | |
| CN105729300A (en) | Clamp for cylindrical grinding of hollow shaft | |
| CN204565229U (en) | A kind of Step drill | |
| CN204381893U (en) | Axle class pin-and-hole repairs fixture | |
| CN104625170A (en) | Stepped drill bit | |
| CN203390234U (en) | Expansion mandrel | |
| CN104084625A (en) | Adjustable step drill bit | |
| CN204545516U (en) | A kind of adjustable in length drill bit | |
| CN203330471U (en) | Chamfering drill bit | |
| CN204075309U (en) | A kind of drill jig for holing to reel | |
| CN203599570U (en) | Multi-functional drilling device | |
| CN203426738U (en) | Universal drilling fixture for metal rings | |
| CN206028626U (en) | Drift forging die | |
| CN203610737U (en) | Multistage drill bit | |
| CN204818184U (en) | Box lid template jig | |
| CN204565210U (en) | A kind of rear-end of spindle lid boring grab | |
| CN204912857U (en) | Cylinder head EVB hole processingequipment | |
| CN204657992U (en) | A kind of gear box casing reverse gear hole machined centre clamp | |
| CN204565211U (en) | A kind of nut seat boring grab | |
| CN104741985A (en) | Workpiece internal circle and external circle grinding method | |
| CN205271482U (en) | Special fixture of high -efficient processing circular arc section part | |
| CN203936430U (en) | A kind of adjustable subland drill | |
| CN206702650U (en) | A kind of horizontal drilling machine fixture of dehydration barrel flange | |
| CN203664836U (en) | Tool for machining beads with holes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215138 Shitian Road, Anshan Industrial Zone, Yangchenghu Town, Xiangcheng District, Suzhou City, Jiangsu Province Applicant after: Chuzhou OMAX Alloy Tools Co.,Ltd. Address before: 215138 Shitian Road, Anshan Industrial Zone, Yangchenghu Town, Xiangcheng District, Suzhou City, Jiangsu Province Applicant before: SUZHOU OUMEIKE CARBIDE TOOL CO.,LTD. |