CN206981829U - A kind of drill bit quick change construction - Google Patents
A kind of drill bit quick change construction Download PDFInfo
- Publication number
- CN206981829U CN206981829U CN201720788203.0U CN201720788203U CN206981829U CN 206981829 U CN206981829 U CN 206981829U CN 201720788203 U CN201720788203 U CN 201720788203U CN 206981829 U CN206981829 U CN 206981829U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cylindrical projection
- perforation
- traveller
- blind hole
- 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
Abstract
The utility model discloses a kind of drill bit quick change construction, including drill bit neck and the connecting rod that is fixed on drill press spindle；The free end of connecting rod is provided with cylindrical projection, perforation is radially provided with inside the cylindrical projection, dividing plate is fixed with the half depth of the perforation, the two sides of dividing plate are connected to spring, and every spring is connected with traveller that can be in perforation slidably；When in the blind hole on cylindrical projection insertion drill bit neck top, in the bar shaped chute on the fin insertion blind hole inwall on its surface；Traveller is rectangular-shape, and it stretches out the end face face blend processing of one end of perforation and the side of circumferencial direction generation extruding contact of the end along cylindrical projection is plane, and the hole wall for the shrinkage pool that the side contacted with the extruding is engaged also is plane.The utility model assembly and disassembly drill bit is convenient, firm and reliable connection is strong.
Description
Technical field
The utility model belongs to drilling technique field, more particularly to the structure that a kind of drill bit Fast Installation is changed.
Background technology
In machining, drilling is conventional process, such as cylinder cap (the in-engine bent axle cylinder to motorcycle together
Lid) etc. parts drilled, because a usual cylinder cap has a hole of multiple sizes, therefore, it is necessary to continually assembly and disassembly change
Drill bit, current installation way are to tighten chuck fixed drill bit using screw thread, and assembly and disassembly are extremely inefficient, and its amount of being threaded into is in frequency
Manually elastic rear easily generation is tired numerously, and it is tightened quantitative change and is difficult to be guaranteed, and connection reliability is not easy to ensure, is unsuitable for criticizing
Quantify production.
Utility model content
The purpose of this utility model is to provide a kind of drill bit quick change construction, and the drill bit quick change construction can realize drill bit
Quick-replaceable, firm and reliable connection.
The technical solution of the utility model is as follows：
A kind of drill bit quick change construction, including drill bit neck and the connecting rod that is fixed on drill press spindle；The connecting rod
Free end is provided with cylindrical projection, is radially provided with perforation inside the cylindrical projection, consolidates in the half depth of the perforation
Surely there is dividing plate, the two sides of dividing plate are connected to spring, and every spring is connected with traveller that can be in perforation slidably,
And spring is in a free state, the cambered surface end of the traveller can be ejected perforation；Along length in the side wall of the cylindrical projection
The fin that direction is provided with bar shaped is spent, when the cylindrical projection is inserted in the blind hole on drill bit neck top, the fin inserts blind hole
In bar shaped chute on inwall, to allow the cambered surface end of the traveller accurately to slip into the corresponding shrinkage pool on blind hole inwall
And connecting rod and drill bit are connected；The traveller is rectangular-shape, and it stretches out the end face face blend of one end of the perforation
The side that extruding contact occurs for circumferencial direction along cylindrical projection of processing and the end is plane, the side phase contacted with the extruding
The hole wall of the shrinkage pool coordinated is also plane.
Further, when the cylindrical projection is inserted into the bottom hole of the blind hole, the cambered surface end of the traveller is just complete
Stretch into entirely in the shrinkage pool.
The beneficial effects of the utility model：The utility model is used its arc using spring to the elastic reactions of two travellers
Face end skids off shrinkage pool when slipping into or be drawn out in insertion, quickly to realize reliably connecting between drill bit and drill press spindle
Connect, assemble and disassemble ultrahigh in efficiency, be particularly suitable for use in frequent more bit change, the less huge roughing situation of moment of torsion.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is schematic diagram of the quick change construction in connection.
Fig. 3 is schematic diagram of the quick change construction in separation.
Fig. 4 is the top view of drill bit neck.
Fig. 5 is the front view of traveller.
Fig. 6 is the top view of traveller.
Fig. 7 is the partial perspective view that drill bit neck is provided with shrinkage pool section.
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the present utility model easily.
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in Fig. 1-7, a kind of drill bit quick change construction, including drill bit neck 4 and the connection that is fixed on drill press spindle 1
Bar 3；The free end of the connecting rod 3 is provided with cylindrical projection 301, perforation is radially provided with inside the cylindrical projection 301, at this
The half depth of perforation is fixed with dividing plate 5, and the two sides of dividing plate 5 have been respectively fixedly connected with spring 6, and every spring 6 is equal
With traveller 7 slidably can be fixedly linked in perforation, and spring 6 is in a free state, can be by the cambered surface end of the traveller 7
Portion's ejection perforation.The fin 302 of bar shaped, the cylindrical projection are alongst provided with the side wall of the cylindrical projection 301
When in the blind hole of the end of 301 insertion drill bit neck 4, the fin 302 is inserted in the bar shaped chute 401 on blind hole inwall, so that
In the corresponding shrinkage pool 402 that can accurately slip on blind hole inwall of cambered surface end of the traveller 7 and by connecting rod 3, drill bit neck
Portion 4 connects, and realizes that quick change connects.The traveller 7 of the present embodiment is rectangular-shape, and it stretches out one end of the perforation
The side of end face face blend processing and the end along the generation extruding contact of the circumferencial direction of cylindrical projection 301 is plane, meanwhile, with this
The hole wall for the shrinkage pool 402 that the side of extruding contact is engaged also is plane, i.e., the end of traveller is in flat semicircle shape, ensures to slide
The cambered surface end of post 7 along cylindrical projection 301 on the basis of it axially more easily can successfully slip into shrinkage pool 402, as far as possible
Ground prevents cambered surface end from being slipped away shrinkage pool 402 along the circumferencial direction of drill bit neck 4 under high torque, and not only increase connection can
It is difficult for drop-off by property, also greatly improve the peak value that its attachment structure can bear and transmit moment of torsion.It is above-mentioned for adaption demand
Traveller 7 and shrinkage pool 402 can be evenly spaced apart to set multigroup, now, will further lift reliability, and use it for turning round greatly
Square (high rotating speed) operating mode.
Further, when the cylindrical projection 301 is inserted into the bottom hole of the blind hole, the cambered surface end of the traveller 7 is firm
It is fully inserted into well in the shrinkage pool 402, is easy to clearly grasp the depth location of the insertion of cylindrical projection 301 and the cambered surface of traveller 7
Whether end is just fully inserted into the shrinkage pool 402.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (2)
- A kind of 1. drill bit quick change construction, it is characterised in that：Including drill bit neck and the connecting rod being fixed on drill press spindle；It is described The free end of connecting rod is provided with cylindrical projection, perforation is radially provided with inside the cylindrical projection, in the half of the perforation Depth is fixed with dividing plate, the two sides of dividing plate are connected to spring, every spring with can be in perforation slidably Traveller is connected, and spring is in a free state, the cambered surface end of the traveller can be ejected into perforation；The side wall of the cylindrical projection On be alongst provided with the fin of bar shaped, when in the blind hole on cylindrical projection insertion drill bit neck top, the fin Insert in the bar shaped chute on blind hole inwall, with the phase for alloing the cambered surface end of the traveller accurately to slip on blind hole inwall Answer in shrinkage pool and connect connecting rod and drill bit；The traveller is rectangular-shape, and it stretches out the end of one end of the perforation The side that extruding contact occurs for face face blend processing and circumferencial direction of the end along cylindrical projection is plane, is contacted with the extruding The hole wall of the shrinkage pool that is engaged of side be also plane.
- 2. drill bit quick change construction according to claim 1, it is characterised in that：The cylindrical projection is inserted into the blind hole During bottom hole, the cambered surface end of the traveller is just fully inserted into the shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720788203.0U CN206981829U (en) | 2017-06-29 | 2017-06-29 | A kind of drill bit quick change construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720788203.0U CN206981829U (en) | 2017-06-29 | 2017-06-29 | A kind of drill bit quick change construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206981829U true CN206981829U (en) | 2018-02-09 |
Family
ID=61400524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720788203.0U Expired - Fee Related CN206981829U (en) | 2017-06-29 | 2017-06-29 | A kind of drill bit quick change construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206981829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131085A (en) * | 2021-10-18 | 2022-03-04 | 台州中驰智谷科技有限公司 | Drill bit with fracture prevention and long service life |
-
2017
- 2017-06-29 CN CN201720788203.0U patent/CN206981829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131085A (en) * | 2021-10-18 | 2022-03-04 | 台州中驰智谷科技有限公司 | Drill bit with fracture prevention and long service life |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20180629 |