CN203599539U - Shaft core assembly of high-speed electric ball spindle - Google Patents
Shaft core assembly of high-speed electric ball spindle Download PDFInfo
- Publication number
- CN203599539U CN203599539U CN201320740775.3U CN201320740775U CN203599539U CN 203599539 U CN203599539 U CN 203599539U CN 201320740775 U CN201320740775 U CN 201320740775U CN 203599539 U CN203599539 U CN 203599539U
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- China
- Prior art keywords
- axle core
- pull bar
- chuck
- speed electric
- communicated
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Abstract
A shaft core assembly of a high-speed electric ball spindle comprises a shaft core, a pull rod and a chuck. A through hole which penetrating through the lower end face of the shaft core from the upper end face of the shaft core is formed in the shaft core, and a conical portion with the inner diameter sequentially increasing from top to bottom is arranged at the lower end of the through hole. The pull rod is movably connected into the through hole of the shaft core in a penetrating mode, and an air inlet communicated with an external air source is formed in the upper end face of the pull rod. The chuck is fixedly connected to the lower end of the pull rod and matched with the conical portion, an air guide hole is formed in the chuck, the upper end of the air guide hole is communicated with the air inlet, and the lower end of the air guide hole is communicated to a face where the chuck is matched with a tool. According to the shaft core assembly of the high-speed electric ball spindle, dust and impurities in the chuck are removed through compressed air, so that the tool installed on the chuck can be prevented from being polluted by the dust and the impurities, therefore, the processing precision of the electric spindle is improved, and the service life of the electric spindle is prolonged. Moreover, the shaft core assembly of the high-speed electric ball spindle can realize quick assembly and disassembly of the quick tool and improve the production efficiency.
Description
Technical field
The utility model relates to a kind of axle core component of speed electric rolling-ball main shaft.
Background technology
The axle core component of speed electric rolling-ball main shaft is normally used in the milling of high accuracy carving, grinding equipment, its normally comprise axle core, movable cross-under at the pull bar of axle core inner, be arranged on the chuck of pull bar bottom, bottom, axle in-core hole coordinates the position of chuck to become the little taper of outer imperial palace, on pull bar, moves, and makes axle in-core hole bottom clamping chuck, make chuck grip cutter, otherwise pull bar moves down, chuck is moved down with respect to bottom, axle in-core hole, chuck unclamps, and then cutter is unclamped.
The axle core component of existing speed electric rolling-ball main shaft, due to its open structure, in the time of holding cutter, has foreign material and enters in chuck, after these foreign material drop on cutter, and impact carving milling that can be serious, the precision of grinding.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of axle core component of speed electric rolling-ball main shaft, and it can effectively remove the foreign material in chuck, avoids cutter contaminated, thereby improves the machining accuracy of electric main shaft.
For achieving the above object, the utility model adopts following technical scheme:
An axle core component for speed electric rolling-ball main shaft, comprises,
Axle core, this axle core inner is provided with one and is through to the through hole of lower surface by its upper surface, and the bottom of through hole is provided with the taper portion that an internal diameter increases successively from top to bottom;
The pull bar of movable cross-under in the through hole of axle core, the upper surface of pull bar offers an air inlet of connecting with extraneous source of the gas;
The chuck that is fixedly connected on pull bar bottom and coordinates with taper portion, is provided with gas port in this chuck, and gas port upper end is communicated with air inlet, the mating surface that lower end conducting is mated with cutter to chuck.
The outer surface of pull bar and the inwall of through hole have an air-guiding gap, and pull bar top is provided with the first via that one end is communicated with air inlet, the other end is communicated with air-guiding gap; The bottom of pull bar is provided with the second via that one end is communicated with air-guiding gap, the other end is communicated with gas port upper end.
The outer cover of chuck is connected to and the airtight sealing ring coordinating of axle core through-hole wall.
The outside of axle core is also provided with copper rotor.
Between pull bar and axle core, be also provided with a flexible member, this flexible member is for providing an elastic stress that pull bar is upwards pushed up to pressure with respect to axle core.
The upper end of pull bar is provided with a limited cap, axle core external activity be socketed with a spring cup that is positioned at limited cap bottom, flexible member is one to be enclosed within the back-moving spring of axle core outside, back-moving spring is limited between axle core and spring cup.
The beneficial effects of the utility model are:
The utility model adopts compressed air to remove dust, the foreign material of chuck inside, can avoid being installed on cutter on chuck by dust, impurity pollution, thereby has improved the machining accuracy of electric main shaft, has increased the service life of electric main shaft.And the utility model can be realized the quick handling of fast tool, has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein: 10, axle core; 11, taper portion; 20, pull bar; 21, limited cap; 22, air inlet; 23, the first via; 24, the second via; 30, spring cup; 40, back-moving spring; 50, chuck; 51, gas port; 52, sealing ring; 60, copper rotor; 70, cutter.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:
As shown in Figure 1, for the axle core component of a kind of speed electric rolling-ball main shaft of the present utility model, it comprises axle core 10, pull bar 20, chuck 50, wherein, axle core 10 inside are provided with a through hole, this through hole is through to the lower surface of axle core 10 by the upper surface of axle core 10, the bottom of through hole is provided with a taper portion 11, and the internal diameter of this taper portion 11 from top to bottom increases successively.The cross-under of pull bar 20 activities is in the through hole of axle core 10, and it can be up and down with respect to axle core 10 along the length direction of axle core 10.Chuck 50 is fixedly connected on the bottom of pull bar 20, and this chuck 50 coordinates with the taper portion 11 of axle core 10 through holes.
In said structure, offer an air inlet 22 in the top ends of pull bar 20, this air inlet 22 is for being communicated with extraneous high-pressure air source; Between the inwall of the outer surface of pull bar 20 and axle core 10 through holes, form an air-guiding gap, the top of pull bar 20 is provided with the first via 23, the bottom that these the first via 23 upper ends are upwards communicated with air inlet 22, the first vias 23 is communicated with air-guiding gap along the outer surface that extends radially outwardly to pull bar 20 of pull bar 20; The bottom of pull bar 20 is provided with the second via 24, and these the second via 24 bottoms extend to the lower surface of pull bar 20, and its top is communicated with air-guiding gap along the outer surface that extends radially outwardly to pull bar 20 of pull bar 20.Chuck 50 inside are provided with a gas port 51, and the upper end of gas port 51 is communicated with the bottom of the second via 24, on the mating surface that its bottom conducting to chuck 50 mates with cutter 70.
In order to prevent gas leakage, be also socketed with the airtight sealing ring coordinating 52 of inwall with axle core 10 through holes in above-mentioned chuck 50 outsides.
Above-mentioned air inlet 22 is communicated with extraneous high-pressure air source, in the time unloading cutter, compressed air is entered by air inlet 22, enter into gas port 51 via the first via 23, air-guiding gap, the second via 24 successively, finally discharge from the bottom of gas port 51, the dust of chuck 50 inside, foreign material are blown away, purify chuck 50 inside, prevent that cutter 70 is contaminated.
In the utility model, can be not only to utilize above-mentioned the first via 23, air-guiding gap and the second via 24 to realize being communicated with of air inlet 22 and gas port 51, it can also adopt other structures that air inlet 22 is communicated with gas port 51, for example directly along pull bar 20 axially offer an intercommunicating pore, air inlet 22 is communicated with gas port 51.
Between above-mentioned pull bar 20 and axle core 10, be also provided with a flexible member, this flexible member is for realizing the reset of pull bar 20, concrete, and flexible member is for providing one pull bar 20 upwards to be pushed up to the elastic stress of pressing with respect to axle core 10.The upper end of pull bar 20 is provided with a limited cap 21, the external activity of axle core 10 be socketed with a spring cup 30 that is positioned at limited cap 21 bottoms, flexible member is a back-moving spring 40, and back-moving spring 40 is enclosed within axle core 10 outsides and is limited between the stage portion and spring cup 30 of axle core 10 outer setting.While unloading cutter, external force pushing drawing rod 20 moves downward with respect to axle core 10, and after chuck 50 moves down, because taper portion 11 loosens the clamping to chuck 50, chuck 50 automatically springs open, and cutter 70 is removed.In the time of needs mounting cutter 70, by the cutter 70 supreme insertion chucks 50 in bottom right, discharge the external force to pull bar 20, under the effect of back-moving spring 40, pull bar 20 is with respect to moving on axle core 10, taper portion 11 clamping collets 50, cutter 70 is fixed on chuck 50, completes the installation of cutter 70.Above-mentioned back-moving spring 40 can also be to adopt other flexible members to substitute, for example, can adopt dish spring.
Axle core of the present utility model 10 outsides are also provided with a copper rotor 60, and this copper rotor 60, for coordinating with stator, drives the high-speed rotation of axle core component.
In the utility model, adopt compressed air to remove dust, the foreign material of chuck 50 inside, can avoid being installed on cutter 70 on chuck 50 by dust, impurity pollution, thereby improved the machining accuracy of electric main shaft, increased the service life of electric main shaft.And the utility model can be realized the quick handling of fast tool 70, has improved production efficiency.
To one skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.
Claims (6)
1. an axle core component for speed electric rolling-ball main shaft, is characterized in that, comprise,
Axle core, this axle core inner is provided with one and is through to the through hole of lower surface by its upper surface, and the bottom of through hole is provided with the taper portion that an internal diameter increases successively from top to bottom;
The pull bar of movable cross-under in the through hole of axle core, the upper surface of pull bar offers an air inlet of connecting with extraneous source of the gas;
The chuck that is fixedly connected on pull bar bottom and coordinates with taper portion, is provided with gas port in this chuck, and gas port upper end is communicated with air inlet, the mating surface that lower end conducting is mated with cutter to chuck.
2. the axle core component of speed electric rolling-ball main shaft as claimed in claim 1, it is characterized in that, the outer surface of pull bar and the inwall of through hole have an air-guiding gap, and pull bar top is provided with the first via that one end is communicated with air inlet, the other end is communicated with air-guiding gap; The bottom of pull bar is provided with the second via that one end is communicated with air-guiding gap, the other end is communicated with gas port upper end.
3. the axle core component of speed electric rolling-ball main shaft as claimed in claim 1, is characterized in that, the outer cover of chuck is connected to and the airtight sealing ring coordinating of axle core through-hole wall.
4. the axle core component of speed electric rolling-ball main shaft as claimed in claim 1, is characterized in that, the outside of axle core is also provided with copper rotor.
5. the axle core component of speed electric rolling-ball main shaft as claimed in claim 1, is characterized in that, between pull bar and axle core, is also provided with a flexible member, and this flexible member is for providing an elastic stress that pull bar is upwards pushed up to pressure with respect to axle core.
6. the axle core component of speed electric rolling-ball main shaft as claimed in claim 5, it is characterized in that, the upper end of pull bar is provided with a limited cap, axle core external activity be socketed with a spring cup that is positioned at limited cap bottom, flexible member is one to be enclosed within the back-moving spring of axle core outside, and back-moving spring is limited between axle core and spring cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740775.3U CN203599539U (en) | 2013-11-20 | 2013-11-20 | Shaft core assembly of high-speed electric ball spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740775.3U CN203599539U (en) | 2013-11-20 | 2013-11-20 | Shaft core assembly of high-speed electric ball spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599539U true CN203599539U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320740775.3U Expired - Fee Related CN203599539U (en) | 2013-11-20 | 2013-11-20 | Shaft core assembly of high-speed electric ball spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261990A (en) * | 2018-10-24 | 2019-01-25 | 深圳市爱贝科精密机械有限公司 | A kind of air-flotation electric spindle structure |
| CN110586966A (en) * | 2019-07-31 | 2019-12-20 | 广州市昊志机电股份有限公司 | Pull rod structure and main shaft |
-
2013
- 2013-11-20 CN CN201320740775.3U patent/CN203599539U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261990A (en) * | 2018-10-24 | 2019-01-25 | 深圳市爱贝科精密机械有限公司 | A kind of air-flotation electric spindle structure |
| CN110586966A (en) * | 2019-07-31 | 2019-12-20 | 广州市昊志机电股份有限公司 | Pull rod structure and main shaft |
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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: 20140521 Termination date: 20201120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |