CN204603400U - A kind of combined drill rod - Google Patents
A kind of combined drill rod Download PDFInfo
- Publication number
- CN204603400U CN204603400U CN201420867383.8U CN201420867383U CN204603400U CN 204603400 U CN204603400 U CN 204603400U CN 201420867383 U CN201420867383 U CN 201420867383U CN 204603400 U CN204603400 U CN 204603400U
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- China
- Prior art keywords
- knife
- handle
- mandrel
- drill rod
- elastic positioning
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Abstract
The utility model relates to a kind of combined drill rod, comprise mandrel, spiral cutting sword cover and handle of a knife, wherein spiral cutting sword cover is socketed in mandrel leading exterior surface, and be connected by alignment pin with mandrel, uniform at least four locating slots in mandrel end side surface, and locating slot is arc-shaped, mandrel end is connected with handle of a knife, handle of a knife is hollow round table structure, uniform at least 4 holding tanks of its distal outer surface, uniform at least two elastic positioning pins of front inner surface, elastic positioning pin is connected with handle of a knife by back-moving spring, holding tank and elastic positioning pin all in axial direction distribute, it is inner that mandrel end is embedded in handle of a knife front end, and be connected by the elastic positioning pin of locating slot with handle of a knife front end.This novel one side can need to adjust bit diameter flexibly according to use, overcomes conventional drill step jackrod structure on the other hand and fixes, 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 combined drill rod, belongs to machining tool technical field.
Background technology
Carrying out in machining production at present, polytype hole class formation dug by frequent needs on workpiece to be added, in order to meet the needs of such processing, the current drilling processing mainly utilizing drill bit to carry out hole class formation, but its structure of presently used drill bit integral structure often, this kind of structure causes bit 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 novel drill bit apparatus to meet the needs of actual production.
Utility model content
For the deficiency that prior art exists, the utility model provides a kind of combined drill rod, this this new structure advantages of simple, reasonable in design, use flexibility high, can need to adjust bit diameter flexibly according to use on the one hand, overcome conventional drill step jackrod structure on the other hand to 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 combined drill rod, it is characterized in that: described combined drill rod comprises mandrel, spiral cutting sword cover and handle of a knife, wherein said spiral cutting sword cover is socketed in mandrel leading exterior surface, and be connected by alignment pin with mandrel, uniform at least four locating slots in described mandrel end side surface, described mandrel end is connected with handle of a knife, described handle of a knife is hollow round table structure, uniform at least 4 holding tanks of distal outer surface of described handle of a knife, uniform at least two elastic positioning pins of front inner surface of described handle of a knife, described elastic positioning pin is connected with handle of a knife by back-moving spring, described holding tank and elastic positioning pin all in axial direction distribute, it is inner that described mandrel end is embedded in handle of a knife front end, described mandrel end is connected by the elastic positioning pin of locating slot with handle of a knife front end.
According to above-mentioned a kind of combined drill rod, wherein, described handle of a knife is separately connected by alignment pin with mandrel end contact surface place;
According to above-mentioned a kind of combined drill rod, wherein, described alignment pin is at least provided with 4, and is distributed in same plane around handle of a knife axis.
According to above-mentioned a kind of combined drill rod, wherein, described mandrel and handle of a knife connecting length are not more than 1/5 of mandrel total length.
According to above-mentioned a kind of combined drill rod, wherein, it is 1 millimeter-50 millimeters that described handle of a knife and spiral cutting sword overlap spacing, and is separated by resilient sleeve.
According to above-mentioned a kind of combined drill rod, wherein, described locating slot is arc-shaped.
This new structure advantages of simple, reasonable in design, use flexibility is high, can need to adjust bit diameter flexibly according to use on the one hand, overcome conventional drill step jackrod structure on the other hand to 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 this new structure schematic diagram.
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 combined drill rod as described in Figure 1, comprise mandrel 1, spiral cutting sword cover 2 and handle of a knife 3, wherein spiral cutting sword cover 2 is socketed in mandrel 1 leading exterior surface, and be connected by alignment pin 4 with mandrel 1, uniform at least four locating slots 5 in mandrel 1 end side surface, and locating slot 5 is in arc-shaped, mandrel 1 end is connected with handle of a knife 3.
In the present embodiment, described handle of a knife 3 is the hollow round table structure of 2 °-10 °, uniform at least 4 holding tanks 6 of its distal outer surface, uniform at least two elastic positioning pins 7 of front inner surface, elastic positioning pin 7 is connected with handle of a knife 3 by back-moving spring 8, holding tank 6 and elastic positioning pin 7 all in axial direction distribute, and it is inner that mandrel 1 end is embedded in handle of a knife 3 front end, and be connected by the elastic positioning pin 7 of locating slot 5 with handle of a knife 1 front end.
In the present embodiment, described handle of a knife 3 is separately connected by alignment pin 4 with mandrel 1 end contact surface place, and alignment pin 4 at least 4 being distributed in same plane around handle of a knife 3 axis.
In the present embodiment, described mandrel 1 and handle of a knife 3 connecting length are not more than 1/5 of mandrel 1 total length, and handle of a knife 3 and spiral cutting sword overlap 2 spacing is 1 millimeter-50 millimeters, and are separated by resilient sleeve 9.
This new structure advantages of simple, reasonable in design, use flexibility is high, can need to adjust bit diameter flexibly according to use on the one hand, overcome conventional drill step jackrod structure on the other hand to 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 combined drill rod, it is characterized in that: described combined drill rod comprises mandrel, spiral cutting sword cover and handle of a knife, wherein said spiral cutting sword cover is socketed in mandrel leading exterior surface, and be connected by alignment pin with mandrel, uniform at least four locating slots in described mandrel end side surface, described mandrel end is connected with handle of a knife, described handle of a knife is hollow round table structure, uniform at least 4 holding tanks of distal outer surface of described handle of a knife, uniform at least two elastic positioning pins of front inner surface of described handle of a knife, described elastic positioning pin is connected with handle of a knife by back-moving spring, described holding tank and elastic positioning pin all in axial direction distribute, it is inner that described mandrel end is embedded in handle of a knife front end, described mandrel end is connected by the elastic positioning pin of locating slot with handle of a knife front end.
2. a kind of combined drill rod according to claim 1, is characterized in that, described handle of a knife is separately connected by alignment pin with mandrel end contact surface place.
3. a kind of combined drill rod according to claim 2, is characterized in that, described alignment pin is at least provided with 4, and is distributed in same plane around handle of a knife axis.
4. a kind of combined drill rod according to claim 1, is characterized in that, described mandrel and handle of a knife connecting length are not more than 1/5 of mandrel total length.
5. a kind of combined drill rod according to claim 3, is characterized in that, it is 1 millimeter-50 millimeters that described handle of a knife and spiral cutting sword overlap spacing, and is separated by resilient sleeve.
6. a kind of combined drill rod according to claim 3, is characterized in that, described locating slot is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867383.8U CN204603400U (en) | 2014-12-31 | 2014-12-31 | A kind of combined drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867383.8U CN204603400U (en) | 2014-12-31 | 2014-12-31 | A kind of combined drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204603400U true CN204603400U (en) | 2015-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420867383.8U Expired - Fee Related CN204603400U (en) | 2014-12-31 | 2014-12-31 | A kind of combined drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204603400U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551132A (en) * | 2014-12-31 | 2015-04-29 | 苏州用朴合金工具有限公司 | Combined drill stem |
| CN105965073A (en) * | 2016-06-30 | 2016-09-28 | 吴中区横泾博尔机械厂 | Drill bit connector of electromagnetic valve cover machining equipment |
| CN107053040A (en) * | 2017-02-17 | 2017-08-18 | 李培培 | A kind of spring plug-in slotting cutter clamping tool |
| CN107839043A (en) * | 2017-12-18 | 2018-03-27 | 苏州中骏木工机械配件有限公司 | A kind of solid center bit of convenient dismounting |
| CN113695627A (en) * | 2021-09-02 | 2021-11-26 | 浙江抟原复合材料有限公司 | Equipment for coaxially mounting aircraft span joint fittings and using method |
-
2014
- 2014-12-31 CN CN201420867383.8U patent/CN204603400U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551132A (en) * | 2014-12-31 | 2015-04-29 | 苏州用朴合金工具有限公司 | Combined drill stem |
| CN104551132B (en) * | 2014-12-31 | 2017-02-01 | 苏州用朴合金工具有限公司 | Combined drill stem |
| CN105965073A (en) * | 2016-06-30 | 2016-09-28 | 吴中区横泾博尔机械厂 | Drill bit connector of electromagnetic valve cover machining equipment |
| CN107053040A (en) * | 2017-02-17 | 2017-08-18 | 李培培 | A kind of spring plug-in slotting cutter clamping tool |
| CN107839043A (en) * | 2017-12-18 | 2018-03-27 | 苏州中骏木工机械配件有限公司 | A kind of solid center bit of convenient dismounting |
| CN113695627A (en) * | 2021-09-02 | 2021-11-26 | 浙江抟原复合材料有限公司 | Equipment for coaxially mounting aircraft span joint fittings and using method |
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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: 20150902 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |