CN202278197U - Electric spindle of boring mill - Google Patents
Electric spindle of boring mill Download PDFInfo
- Publication number
- CN202278197U CN202278197U CN2011203477372U CN201120347737U CN202278197U CN 202278197 U CN202278197 U CN 202278197U CN 2011203477372 U CN2011203477372 U CN 2011203477372U CN 201120347737 U CN201120347737 U CN 201120347737U CN 202278197 U CN202278197 U CN 202278197U
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- water
- housing
- main shaft
- shell
- axial
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- Expired - Fee Related
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Abstract
The utility model discloses an electric spindle of a boring mill. The electric spindle comprises a spindle body and a shell, wherein the front end and the rear end of the spindle body are respectively arranged inside the shell through a bearing set, the middle part of the spindle body is provided with a rotor part, the middle part of the inner side of the shell is provided with a stator part, a front end cover, a rear end cover and a sealing structure, an inner water jacket is arranged between the outer side of the stator part and the inner wall of the shell, a cooling water cavity is arranged between the inner water jacket and the shell, and a water inlet nozzle and a water outlet nozzle are respectively arranged at the outer side of the shell and are respectively communicated with the cooling water cavity through axial water holes formed in the shell. The electric spindle disclosed by the utility model has a square appearance and is convenient to install and use as well as fix. The inner water jacket as well as the water inlet nozzle and the water outlet nozzle are arranged at the inner side of the shell, so that the water cooling can be carried out on a coil effectively. The front end of the spindle body is connected with a boring rod through an outer cone, the outer cone is used for positioning, screws are used for fastening, and thus, the precision is good. A front outer jacket is arranged at the outer side of a front bearing block, the cooling water cavity is arranged between the front outer jacket and the front bearing block, water cooling is adopted, and the rotation speed, the rigidity and the service life are guaranteed.
Description
Technical field:
The utility model relates to the machine tool component of field of machining, is specifically related to a kind of boring machine electricity main shaft.
Background technology:
Boring machine is a process equipment commonly used in the machining, and existing pocket hole boring spindle structure is: an axle housing that is fixed on the body is arranged, with bearings main shaft is arranged in the axle housing; Forward and backward two groups of zanjon ball angular contact bearings are arranged respectively between axle housing and the main shaft, an interior outer bearing adjusting pad that is enclosed within on the main shaft is arranged between every group of bearing, the shortcoming of the main shaft device of this structure is after bearing wear produces the gap; Need to shut down the dismounting adjustment, otherwise will influence the main shaft precision, the bearing wear of can not following up automatically after the wearing and tearing; Can not adjust voluntarily; Not only influence precision but also increase downtime, cause production efficiency low, the workpiece cost is high.
At present, taper-shank cutter and boring machine are to utilize the taper hole conical surface tight fit of milling cutter taper shank and boring spindle front end to install, and this mounting means makes milling cutter in working angles; Under the effect of the axial cutting force that milling cutter receives; Produce looseningly relatively between meeting and the main shaft, so usually fall the cutter phenomenon, the lighter causes the cutting interruption; Weight person damages cutter or scraps workpiece, even injures operating personnel.For addressing this problem; China's utility model patent 200520143646 specifications disclose a kind of cutting chuck; Comprise clamp body, the clamp body front portion is provided with internal taper hole, and the rear portion is provided with internal taper hole is coaxial and communicates, is used for cooperating the locating hole that connects with machine tool chief axis; The locating hole hole wall is provided with breach radially, and the breach both sides are provided with the clamping lug.When utilizing this cutting chuck on boring machine, taper-shank cutter to be installed; At first insert milling cutter awl tenon in the internal taper hole of cutting chuck; In locating hole, milling cutter is strained and fixed then with turnbuckle; Prevent that milling cutter from deviating from the chuck from cutting, utilize locating hole at last and clamp lug and realize that the cutting chuck connects with the firm of boring spindle.Though this cutting chuck has been realized being connected of milling cutter and chuck, the linkage section that main shaft and chuck connect is consistent cylindric of radial dimension up and down, only utilizes clamping lug connection stability not high between chuck and the main shaft, and then can influence machining accuracy.
The utility model content:
The utility model proposes a kind of boring spindle to the deficiency of at present existing situation.
The technical scheme that the utility model adopted: a kind of boring spindle; Comprise main shaft and housing, the front and back ends of main shaft is installed in the housing through bearing group respectively, and the main shaft middle part is equipped with rotor portion; The housing middle inside is equipped with stationary part; And front and rear cover and hermetically-sealed construction, be provided with inner water sleeve between the outside of stationary part and the inner walls, be provided with cooling water cavity between this inner water sleeve and the housing; Hull outside is respectively arranged with water inlet tap and faucet, and water inlet tap and faucet are communicated with cooling water cavity through the axial water hole that is arranged in the housing respectively.
The front-end bearing pedestal outside is set with preceding overcoat; Overcoat and front-end bearing pedestal joint face are provided with cooling water cavity before being somebody's turn to do; And in preceding overcoat, be provided with axial inlet opening and axial apopore, and this axial water hole is communicated with the water inlet tap of housing, and this axial apopore is communicated with the faucet of housing; Fore bearing adopts water-cooled, guarantees rotating speed, rigidity and service life.
Hull outside is square, conveniently installs and uses, and is convenient fixing.
Be respectively installed with forward and backward gimbal on the forward and backward both sides main shaft of rotor portion.
The main shaft front end is connected with boring bar through outer cone, and fixes through screw, the outer cone location, and screw tightens up, and rigidity is big, precision good.
The front end of preceding overcoat and front-end bearing pedestal is fixed with protecgulum, sealing ring and preceding sealing gasket before being respectively installed with between this protecgulum and the fore bearing group, and this preceding sealing ring and preceding sealing gasket convex-concave cooperate the formation labyrinth seal structure.
Dottle pin and outer dottle pin in being set with between each bearing of fore bearing group, interior dottle pin docks with bearing inner sleeve, and outer dottle pin docks with bearing outside, forms oil circuit between the inside and outside dottle pin.
The useful good effect of the utility model:
1, profile is square, conveniently installs and uses, and is convenient fixing.
2, be provided with inner water sleeve in the housing inboard, and the turnover water nozzle, effectively coil is carried out water-cooled.
3, the main shaft front end connects boring bar, and the main shaft front end is connected with boring bar through outer cone, the outer cone location, and screw tightens up, and rigidity is big, precision good.
4, overcoat before the front-end bearing pedestal arranged outside is provided with cooling water cavity between preceding overcoat and the front-end bearing pedestal, adopts water-cooled, guarantees rotating speed, service life and rigidity.
Description of drawings:
Fig. 1 is the utility model cross-sectional view;
Fig. 2 is the right TV structure sketch map of Fig. 1.
Label 1 is a main shaft among the figure, and 2 is protecgulum, and 3 is preceding sealing ring, and 4 is preceding sealing gasket, and 5 is interior dottle pin, and 6 is outer dottle pin; 7 is front-end bearing pedestal, and 8 is preceding overcoat, and 9 is preceding nut, and 10 is cover in the rotor, and 11 is rotor part, and 12 is stator component; 13 is inner water sleeve, and 14 is housing, and 15 are the back balance ring, and 16 is rear bearing block, and 17 is back nut one; 18 is that back nut two, 19 is a rear pressing cover, and 20 is water inlet tap, and 21 is faucet, and 22 are the lead fixed lid.
The specific embodiment:
Referring to Fig. 1 and Fig. 2, the front and back ends of the main shaft 1 of this boring spindle is installed in the housing 14 through bearing group respectively.Main shaft 1 middle part is equipped with rotor portion 11, and housing 14 middle inside are equipped with stationary part 12.Be set with preceding overcoat on the front end main shaft of rotor portion, be set with the back balance ring on the rear end main shaft of rotating shaft part.Be provided with inner water sleeve between the outside of stationary part 12 and housing 14 inwalls; Be provided with cooling water cavity between this inner water sleeve and the housing 14; Housing 14 outsides are respectively arranged with water inlet tap 20 and faucet 21, and water inlet tap 20 is communicated with cooling water cavity through the axial water hole that is arranged in the housing respectively with faucet 21.
Front-end bearing pedestal 7 outsides are set with preceding overcoat 8; Should be provided with cooling water cavity with front-end bearing pedestal 7 joint faces by preceding overcoat 8; And in preceding overcoat, be provided with axial inlet opening and axial apopore, and this axial water hole is communicated with the water inlet tap 20 of housing, and this axial apopore is communicated with the faucet 21 of housing; Fore bearing adopts water-cooled, guarantees rotating speed and rigidity.
Preceding overcoat 8 is fixed with protecgulum 2 with the front side of front-end bearing pedestal 7, sealing ring 3 and preceding sealing gasket 4 before being respectively installed with between this protecgulum 2 and the fore bearing group, and this preceding sealing ring 3 forms labyrinth seal structure with preceding sealing gasket 4 convex-concaves cooperation.
Dottle pin 5 and outer dottle pin 6 in being set with between each bearing of fore bearing group, interior dottle pin 5 is mainly used in the play of eliminating each bearing with outer dottle pin 6, guarantees the rigidity and the precision of bearing group.
Housing 14 outsides are square, conveniently install and use, and are convenient fixing.Main shaft 1 front end is connected with boring bar through outer cone, and fixes through screw, the outer cone location, and screw tightens up, and rigidity is big, precision good.
Claims (6)
1. boring spindle; Comprise main shaft and housing, the front and back ends of main shaft is installed in the housing through bearing group respectively, and the main shaft middle part is equipped with rotor portion; The housing middle inside is equipped with stationary part; And front and rear cover and hermetically-sealed construction, it is characterized in that: be provided with inner water sleeve between the outside of stationary part and the inner walls, be provided with cooling water cavity between this inner water sleeve and the housing; Hull outside is respectively arranged with water inlet tap and faucet, and water inlet tap and faucet are communicated with cooling water cavity through the axial water hole that is arranged in the housing respectively.
2. boring spindle according to claim 1; It is characterized in that: the front-end bearing pedestal outside of main shaft is set with preceding overcoat; Overcoat and front-end bearing pedestal joint face are provided with cooling water cavity before being somebody's turn to do; And in preceding overcoat, be provided with axial inlet opening and axial apopore, and this axial water hole is communicated with the water inlet tap of housing, and this axial apopore is communicated with the faucet of housing.
3. boring spindle according to claim 1 is characterized in that: hull outside is square.
4. boring spindle according to claim 1 is characterized in that: be respectively installed with forward and backward gimbal on the forward and backward both sides main shaft of rotor portion.
5. boring spindle according to claim 1 is characterized in that: the main shaft front end is connected with boring bar through outer cone, and fixes through screw.
6. boring spindle according to claim 2; It is characterized in that: the front end of preceding overcoat and front-end bearing pedestal is fixed with protecgulum; Sealing ring and preceding sealing gasket before being respectively installed with between this protecgulum and the fore bearing group, this preceding sealing ring and preceding sealing gasket convex-concave cooperate the formation labyrinth seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203477372U CN202278197U (en) | 2011-09-16 | 2011-09-16 | Electric spindle of boring mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203477372U CN202278197U (en) | 2011-09-16 | 2011-09-16 | Electric spindle of boring mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202278197U true CN202278197U (en) | 2012-06-20 |
Family
ID=46224383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203477372U Expired - Fee Related CN202278197U (en) | 2011-09-16 | 2011-09-16 | Electric spindle of boring mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202278197U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728858A (en) * | 2012-07-06 | 2012-10-17 | 刘钊 | Detachable lathe electric spindle with air blowing device and built-in rotor |
| CN103341819A (en) * | 2013-05-29 | 2013-10-09 | 无锡机床股份有限公司 | Motor installing structure of motorized spindle for grinding railway bearing |
| CN110500340A (en) * | 2019-09-05 | 2019-11-26 | 清华大学 | A kind of high-voltage high-speed reciprocation sealing experiment cavity of temperature-controllable |
| CN111804936A (en) * | 2019-04-10 | 2020-10-23 | 宁波天控五轴数控技术有限公司 | Dual-cooling electric spindle |
-
2011
- 2011-09-16 CN CN2011203477372U patent/CN202278197U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728858A (en) * | 2012-07-06 | 2012-10-17 | 刘钊 | Detachable lathe electric spindle with air blowing device and built-in rotor |
| CN103341819A (en) * | 2013-05-29 | 2013-10-09 | 无锡机床股份有限公司 | Motor installing structure of motorized spindle for grinding railway bearing |
| CN111804936A (en) * | 2019-04-10 | 2020-10-23 | 宁波天控五轴数控技术有限公司 | Dual-cooling electric spindle |
| CN110500340A (en) * | 2019-09-05 | 2019-11-26 | 清华大学 | A kind of high-voltage high-speed reciprocation sealing experiment cavity of temperature-controllable |
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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: 20120620 Termination date: 20190916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |