CN203599542U - Shaft core assembly of high-speed electric ball spindle - Google Patents
Shaft core assembly of high-speed electric ball spindle Download PDFInfo
- Publication number
- CN203599542U CN203599542U CN201320740837.0U CN201320740837U CN203599542U CN 203599542 U CN203599542 U CN 203599542U CN 201320740837 U CN201320740837 U CN 201320740837U CN 203599542 U CN203599542 U CN 203599542U
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- Prior art keywords
- axle
- shaft
- core
- shaft core
- hole
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- Expired - Lifetime
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- 239000002184 metal Substances 0.000 claims description 17
- 239000008358 core component Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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Abstract
The utility model discloses a shaft core assembly of a high-speed electric ball spindle. The shaft core assembly comprises a shaft core and a rotor arranged in the middle of the shaft core in a sleeved mode. A through hole penetrating through the two ends of the shaft core is formed in the shaft core, the lower end of through hole is a conical hole used for clamping an external chuck, and the inner wall of the part, located above the conical hole, of the through hole is provided with a limiting step used for locating an external pull rod. A shaft shoulder sleeve, a first shaft neck and a first shaft body are sequentially arranged on the part, located above the rotor, of the shaft core, and first external threads used for being matched with inner circle threads of an upper external bearing are arranged on the first shaft neck; a shaft head, a second shaft neck and a second shaft body are sequentially arranged on the part, located below the rotor, of the shaft core and second external threads used for being matched with inner circle threads of a lower external bearing are arranged on the second shaft body. By means of the shaft core assembly of the high-speed electric ball spindle, a bearing can be stably fixed, the service life of the shaft core can be prolonged, and the actions of knife pulling and disassembling can be conducted reliably.
Description
Technical field
The utility model relates to the technology of electric main shaft, is specifically related to a kind of axle core component of speed electric rolling-ball main shaft.
Background technology
Electricity main shaft is the main shaft that machine tool chief axis and spindle motor are combined together occurring in Digit Control Machine Tool field, wherein, electric main shaft comprises shell, through two bearings support, axle core in the enclosure, stator, rotor, high frequency converter plant, oil mist lubricator, cooling device, built-in encoder, tool changing device etc. is installed.The rotor of motor is directly as the main shaft of lathe, and the housing of main axle unit is exactly motor bed-plate, and coordinates other parts, realizes the integrated of motor and machine tool chief axis.At present, the axle core of speed electric rolling-ball main shaft is because its design is unreasonable, and fixing built on the sand of bearings at both ends, easily causes axle core vibration damage in high-speed rotation process; Meanwhile, axle in-core is for the apparatus structure complexity of mounting cutter, easily stuck when carrying out broaching tool and unloading cutter action.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of axle core component of speed electric rolling-ball main shaft, and firmly rigid bearing in the service life of extending shaft core, can also reliably carry out broaching tool and unload cutter action.
The purpose of this utility model adopts following technical scheme to realize:
A kind of axle core component of speed electric rolling-ball main shaft, comprise axle core and the rotor that is sleeved on axle core middle part, described axle in-core has the through hole at through-shaft core two ends, the lower end of this through hole is made as the bellmouth for clamping outside chuck, and the through-hole wall of bellmouth top is provided with the limited step for locating outside pull bar; On the axle core of described rotor top, be provided with successively shaft shoulder cover, the first axle journal and the first axle body, described the first axle journal be provided with for the first external screw thread of the inner ring threaded engagement of outside upper bearing (metal), the upper bearing (metal) position that is formed for installing outside upper bearing (metal) between described shaft shoulder cover and the first axle journal; On the axle core of described rotor below, be provided with successively spindle nose, the second axle journal and the second axle body, described the second axle body be provided with for the second external screw thread of the inner ring threaded engagement of outside lower bearing, the lower bearing position that is formed for installing outside lower bearing between described spindle nose and the second axle journal.
Preferably, described axle core is multidiameter, and the external diameter of described shaft shoulder cover, the first axle journal and the first axle body reduces successively, and the external diameter of described spindle nose, the second axle journal, the second axle body reduces successively.
Preferably, described through hole is coaxial with axle core.
Compared to existing technology, the beneficial effects of the utility model are:
Rotor of the present utility model is sleeved on axle core, coordinate and can realize High Rotation Speed with the stator of external motor, the shaft shoulder cover that rotor top arranges can support upper bearing (metal), the inner ring of upper bearing (metal) and the first external screw thread are fixed, thereby locking upper bearing (metal), location lower bearing can block in shaft shoulder place between spindle nose and axle journal that rotor below arranges, the inner ring of lower bearing and the second external screw thread are fixed, thereby locking lower bearing, after upper and lower two bearings is firmly fixed, reduced the vibration of axle core, dynamic property is good, service life that can extending shaft core; And pull bar can be located on limited step, the chuck being fixed in bellmouth is carried out after push-and-pull action, can make the hole in chuck be compressed or discharge, and then realize simply, reliably the broaching tool of cutter and unload cutter action.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the axle core component of the utility model speed electric rolling-ball main shaft.
In figure: 1, axle core; 11, through hole; 111, bellmouth; 112, limited step; 2, rotor; 3, shaft shoulder cover; 12, the first axle journal; 121, the first external screw thread; 13, the first axle body; 14, spindle nose; 15, the second axle journal; 151, the second external screw thread; 16, the second axle body.
The specific embodiment
The axle core component of a kind of speed electric rolling-ball main shaft as shown in Figure 1, comprises axle core 1 and the rotor 2 that is sleeved on axle core 1 middle part.Wherein, the axle core 1 of the present embodiment is through Technologies for Heating Processing such as quenching, tempering, and its hardness is high, good rigidly, and good corrosion resistance, temperature distortion is little.
Axle core 1 is multidiameter, in axle core 1, have the through hole 11 at through-shaft core 1 two ends, this through hole 11 is coaxial with axle core 1, be beneficial to the cutter that is arranged in through hole 11 and the centering of axle core 1, the lower end of this through hole 11 is made as the bellmouth 111 for clamping outside chuck, chuck is used for clamping cutter, and through hole 11 inwalls of bellmouth 111 tops are provided with the limited step 112 for locating outside pull bar; Pull bar can be located on limited step 112, and the chuck being fixed in bellmouth 111 is carried out after push-and-pull action, can make the hole in chuck be compressed or discharge, and then realizes simply, reliably the broaching tool of cutter and unload cutter action.
On the axle core 1 of rotor 2 tops, be provided with successively shaft shoulder cover 3, the first axle journal 12 and the first axle body 13, the first axle journal 12 be provided with for the first external screw thread 121 of the inner ring threaded engagement of outside upper bearing (metal), the upper bearing (metal) position that is formed for installing outside upper bearing (metal) between shaft shoulder cover 3 and the first axle journal 12, upper bearing (metal) is limited in the upper bearing (metal) position between shaft shoulder cover 3 and the first axle journal 12; The external diameter of shaft shoulder cover 3, the first axle journal 12 and the first axle body 13 reduces successively, is convenient to the location of upper bearing (metal), is also convenient to the mounting or dismounting of shaft shoulder cover 3, upper bearing (metal), avoids stress to concentrate.
On the axle core 1 of rotor 2 belows, be provided with successively spindle nose 14, the second axle journal 15 and the second axle body 16, the second axle journal 15 be provided with for the second external screw thread 151 of the inner ring threaded engagement of outside lower bearing, the lower bearing position that is formed for installing outside lower bearing between spindle nose 14 and the second axle body 16, this lower bearing is for being the second axle journal 15 present positions, and lower bearing is limited in the second axle journal 15 between spindle nose 14 and the second axle body 16; The external diameter of spindle nose 14, the second axle journal 15, the second axle body 16 reduces successively, is convenient to the location of lower bearing, is also convenient to the mounting or dismounting of lower bearing, avoids stress to concentrate.
When upper bearing (metal) operation, its inner ring is firmly locked by the first external screw thread 121 on the first axle journal 12, when lower bearing operation, its inner ring is firmly locked by the second external screw thread 151 on the second axle journal 15, the stator of external motor be sleeved on rotor 2 on axle core 1 and coordinate after, rotor 2 is with moving axis core 1 High Rotation Speed under the support of upper and lower bearing.
Above-mentioned embodiment is only preferred embodiment of the present utility model; the scope that can not limit with this utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (3)
1. the axle core component of a speed electric rolling-ball main shaft, it is characterized in that: comprise axle core and the rotor that is sleeved on axle core middle part, described axle in-core has the through hole at through-shaft core two ends, the lower end of this through hole is made as the bellmouth for clamping outside chuck, and the through-hole wall of bellmouth top is provided with the limited step for locating outside pull bar; On the axle core of described rotor top, be provided with successively shaft shoulder cover, the first axle journal and the first axle body, described the first axle journal be provided with for the first external screw thread of the inner ring threaded engagement of outside upper bearing (metal), the upper bearing (metal) position that is formed for installing outside upper bearing (metal) between described shaft shoulder cover and the first axle journal; On the axle core of described rotor below, be provided with successively spindle nose, the second axle journal and the second axle body, described the second axle body be provided with for the second external screw thread of the inner ring threaded engagement of outside lower bearing, the lower bearing position that is formed for installing outside lower bearing between described spindle nose and the second axle journal.
2. the axle core component of speed electric rolling-ball main shaft according to claim 1, it is characterized in that: described axle core is multidiameter, the external diameter of described shaft shoulder cover, the first axle journal and the first axle body reduces successively, and the external diameter of described spindle nose, the second axle journal, the second axle body reduces successively.
3. the axle core component of speed electric rolling-ball main shaft according to claim 1 and 2, is characterized in that: described through hole is coaxial with axle core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740837.0U CN203599542U (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 |
|---|---|---|---|
| CN201320740837.0U CN203599542U (en) | 2013-11-20 | 2013-11-20 | Shaft core assembly of high-speed electric ball spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599542U true CN203599542U (en) | 2014-05-21 |
Family
ID=50712244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320740837.0U Expired - Lifetime CN203599542U (en) | 2013-11-20 | 2013-11-20 | Shaft core assembly of high-speed electric ball spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531411A (en) * | 2018-12-28 | 2019-03-29 | 广州市威嘉机床有限公司 | A kind of high-power grinding spindle structure |
-
2013
- 2013-11-20 CN CN201320740837.0U patent/CN203599542U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531411A (en) * | 2018-12-28 | 2019-03-29 | 广州市威嘉机床有限公司 | A kind of high-power grinding spindle structure |
| CN109531411B (en) * | 2018-12-28 | 2024-03-12 | 广州市威嘉机床有限公司 | High-power grinding main shaft structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |