CN204565229U - A kind of Step drill - Google Patents
A kind of Step drill Download PDFInfo
- Publication number
- CN204565229U CN204565229U CN201420865532.7U CN201420865532U CN204565229U CN 204565229 U CN204565229 U CN 204565229U CN 201420865532 U CN201420865532 U CN 201420865532U CN 204565229 U CN204565229 U CN 204565229U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- mandrel
- stacks
- cover stacks
- step drill
- 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
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Abstract
The utility model relates to a kind of Step drill, comprise mandrel drilling rod, cover stacks and elastomeric pad, wherein uniform dowel hole on mandrel drilling rod, cover stacks at least one, and be coated on mandrel drilling rod outer surface, and coaxially distribute in mandrel drilling rod, cover stacks establishes at least two alignment pins, and be connected with the dowel hole on mandrel drilling rod by alignment pin, separately establish elastomeric pad between mandrel drilling rod and socket drilling rod contact surface, cover stacks maximum gauge is not more than 10 times of mandrel drill pipe diameter.The utility model 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.
Description
Technical field
The utility model relates to a kind of Step drill, belongs 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 utility model to meet the needs of actual production.
Utility model content
For the deficiency that prior art exists, the utility model provides a kind of Step drill, this utility model 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 utility model realizes by the following technical solutions:
A kind of Step drill, it is characterized in that: described utility model 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 be 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 utility model 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 utility model is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the utility model structural representation.
Detailed description of the invention
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the utility model 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 utility model 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 utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model 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 |
|---|---|---|---|
| CN201420865532.7U CN204565229U (en) | 2014-12-31 | 2014-12-31 | A kind of Step drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865532.7U CN204565229U (en) | 2014-12-31 | 2014-12-31 | A kind of Step drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204565229U true CN204565229U (en) | 2015-08-19 |
Family
ID=53857921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420865532.7U Expired - Fee Related CN204565229U (en) | 2014-12-31 | 2014-12-31 | A kind of Step drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204565229U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625170A (en) * | 2014-12-31 | 2015-05-20 | 苏州欧美克合金工具有限公司 | Stepped drill bit |
| CN106985219A (en) * | 2017-04-12 | 2017-07-28 | 重庆市永川区植成家俱厂 | A kind of plate drilling device of drill bit reducing |
-
2014
- 2014-12-31 CN CN201420865532.7U patent/CN204565229U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625170A (en) * | 2014-12-31 | 2015-05-20 | 苏州欧美克合金工具有限公司 | Stepped drill bit |
| CN106985219A (en) * | 2017-04-12 | 2017-07-28 | 重庆市永川区植成家俱厂 | A kind of plate drilling device of drill bit reducing |
| CN106985219B (en) * | 2017-04-12 | 2019-02-19 | 重庆市永川区植成家俱厂 | A kind of plate drilling device of drill bit reducing |
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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: 20150819 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |