CN202174492U - Static grinding head for biaxial thrust of grinding wheel spindles - Google Patents
Static grinding head for biaxial thrust of grinding wheel spindles Download PDFInfo
- Publication number
- CN202174492U CN202174492U CN2011202400867U CN201120240086U CN202174492U CN 202174492 U CN202174492 U CN 202174492U CN 2011202400867 U CN2011202400867 U CN 2011202400867U CN 201120240086 U CN201120240086 U CN 201120240086U CN 202174492 U CN202174492 U CN 202174492U
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- China
- Prior art keywords
- hydrostatic bearing
- grinding wheel
- static
- static pressure
- wheel spindle
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to an automatic machine tool, in particular to a static grinding head for biaxial thrust of grinding wheel spindles, comprising a transmission belt pulley and a static grinding head box; a grinding wheel spindle is fixedly connected with the transmission belt pulley through a front static bearing and a rear static bearing; a front static oil cavity, a rear axial static cavity, a rear static oil cavity and a rear axial static cavity are arranged in the static grinding head box; under the action of a high-pressure oil pump, high-pressure oil is generated from static oil and then the high-pressure oil enters into the front and rear static oil cavities through oil inlet channels and enters into the front and rear axial static cavities at the same time to ensure that the grinding wheel spindle is completely suspended in the high-pressure oil; and then the grinding wheel spindle rotates in a full-liquid oil container at a high speed, so that high rotation precision and rigidity are kept and abrasion is not caused. The grinding wheel spindle is capable of bearing stresses in two opposite directions, so that the axial vibration of the grinding wheel spindle is decreased. The static grinding head for the biaxial thrust of grinding wheel spindles is high in rotation precision, high in rigidity, long in service life and capable of improving the machining quality.
Description
Technical field
The utility model relates to the high-precision automatic lathe, is specifically related to a kind of twin shaft to thrust grinding wheel spindle static pressure bistrique.
Background technology
Existing tread grinder wheel bistrique generally adopts high accuracy combination angle contact bearing design, and its shortcoming is: 1. cycle accuracy life lacks, and the reparation difficulty is big; 2. bearing is prone to the wearing and tearing of generating period property, must change in groups bearing during reparation, and rehabilitation cost is high; 3. bearing periodically weares and teares and also can bring periodically deterioration to product quality.
Also there is automated machine tool to adopt modified static pressure bistrique on the market
,Though change the static pressure design into, it axially adopts unidirectional static pressure oil pocket, thereby causes emery wheel a direction to be arranged owing to existing the gap to produce grinding wheel spindle axial vibration when positive and negative both direction is stressed, makes by the surface of the work of grinding and produces chatter mark.
Summary of the invention
The purpose of the utility model is to provide a kind of running accuracy is high, rigidity is big, wearing and tearing are little, machining accuracy is high twin shaft to thrust grinding wheel spindle static pressure bistrique.
For solving the problems of the technologies described above; The technical scheme of the utility model comprises drive pulley, static pressure grinding head box body; Be provided with in the described static pressure grinding head box body preceding hydrostatic bearing, the back hydrostatic bearing, grinding wheel spindle through preceding hydrostatic bearing, after hydrostatic bearing be fixedly connected with drive pulley; Front boss, the rear boss of being provided with perpendicular to axial direction on the described grinding wheel spindle; Before axially be provided with along grinding wheel spindle between hydrostatic bearing and the grinding wheel spindle before the static pressure oil pocket, described before the static pressure oil pocket communicate with preceding hydrostatic bearing flow controller hole on being arranged on preceding hydrostatic bearing sidewall; Before be provided with front axle to the static pressure chamber between hydrostatic bearing and the front boss, described front axle to the static pressure chamber be arranged on before the axial flow controller of preceding hydrostatic bearing hole on the hydrostatic bearing sidewall communicate; Also be provided with the preceding spill port that communicates with drainback passage on the preceding hydrostatic bearing; Axially be provided with back static pressure oil pocket along grinding wheel spindle between described back hydrostatic bearing and the grinding wheel spindle, described back static pressure oil pocket communicates with back hydrostatic bearing flow controller hole on being arranged on back hydrostatic bearing sidewall; Be provided with axially static pressure chamber, back between back hydrostatic bearing and the rear boss, described back axially the static pressure chamber be arranged on after the axial flow controller of back hydrostatic bearing hole on the hydrostatic bearing sidewall communicate; Also be provided with the back spill port that communicates with drainback passage on the back hydrostatic bearing; Also comprise the oil return pipe connecting hole that is arranged on the static pressure grinding head box body and communicates with drainback passage.
After having adopted technique scheme; Static pressure oil is under the effect of high-pressure oil pump; Produce high pressure and get into preceding static pressure oil pocket and back static pressure oil pocket, get into front axle simultaneously, make grinding wheel spindle all be suspended in the hydraulic oil to the axial static pressure chamber in static pressure chamber and back from oil inlet passage; Grinding wheel spindle was in full liquid oil and carved high speed rotation this moment, thereby had not only kept very high running accuracy and rigidity but also do not had wearing and tearing.Because the running accuracy height, grinding wheel spindle axially is difficult for producing axial vibration under the support of static pressure chamber at front axle to static pressure chamber and back simultaneously, therefore can effectively improve machining accuracy.
Description of drawings
Accompanying drawing is the structural representation of the utility model twin shaft to thrust grinding wheel spindle static pressure bistrique.
The specific embodiment
Below in conjunction with accompanying drawing the utility model twin shaft is described further to thrust grinding wheel spindle static pressure bistrique.
Visible like accompanying drawing, present embodiment comprises drive pulley 1, static pressure grinding head box body 2, hydrostatic bearing 3, back hydrostatic bearing 4 before being provided with in the described static pressure grinding head box body 2, grinding wheel spindle 5 through preceding hydrostatic bearing 3, after hydrostatic bearing 4 be fixedly connected with drive pulley 1; Front boss 51, the rear boss 52 of being provided with perpendicular to axial direction on the described grinding wheel spindle 5; Before axially be provided with along grinding wheel spindle 5 between hydrostatic bearing 3 and the grinding wheel spindle 5 before static pressure oil pocket 31, described before static pressure oil pocket 31 communicate with preceding hydrostatic bearing flow controller hole 33 on being arranged on preceding hydrostatic bearing 3 sidewalls; Before be provided with front axle to static pressure chamber 32 between hydrostatic bearing 3 and the front boss 51, described front axle to static pressure chamber 32 be arranged on before the axial flow controller of preceding hydrostatic bearing hole 34 on hydrostatic bearing 3 sidewalls communicate; Also be provided with the preceding spill port 35 that communicates with drainback passage on the preceding hydrostatic bearing 3; Axially be provided with back static pressure oil pocket 41 along grinding wheel spindle 5 between described back hydrostatic bearing 4 and the grinding wheel spindle 5, described back static pressure oil pocket 41 communicates with back hydrostatic bearing flow controller hole 43 on being arranged on back hydrostatic bearing 4 sidewalls; Be provided with axially static pressure chamber 42, back between back hydrostatic bearing 4 and the rear boss 52, described back axially static pressure chamber 42 be arranged on after the axial flow controller of back hydrostatic bearing hole 44 on hydrostatic bearing 4 sidewalls communicate; Also be provided with the back spill port 45 that communicates with drainback passage on the back hydrostatic bearing 4; Also comprise the oil return pipe connecting hole 6 that is arranged on the static pressure grinding head box body 2 and communicates with drainback passage.
During the utility model work, static pressure oil produces high pressure and gets into preceding static pressure oil pocket 31 and back static pressure oil pocket 41 from oil inlet passage under the effect of high-pressure oil pump; Get into front axle simultaneously to the axial static pressure chamber 42 in static pressure chamber 32 and back; Grinding wheel spindle 5 all is suspended in the hydraulic oil grinding wheel spindle 5 and works, thereby can keep very high running accuracy and rigidity in the radial and axial carrying that all can obtain high-pressure oil; Owing to there is not mechanical wear, therefore can effectively prolong equipment life simultaneously.Because running accuracy is high, therefore effectively reduce the processing work surface roughness.
The grinding wheel spindle 5 of the utility model through preceding hydrostatic bearing 3, after hydrostatic bearing 4 be fixedly connected with drive pulley 1; Grinding wheel spindle 5 receives front axle respectively to the axially support in static pressure chamber 42 of static pressure chamber 32, back when positive and negative both direction is stressed; Thereby reduced grinding wheel spindle 5 axial vibrations, can effectively reduce processing work surface chatter mark.
Claims (1)
1. a twin shaft is to thrust grinding wheel spindle static pressure bistrique; Comprise drive pulley (1), static pressure grinding head box body (2); It is characterized in that: be provided with in the described static pressure grinding head box body (2) preceding hydrostatic bearing (3), the back hydrostatic bearing (4), grinding wheel spindle (5) through preceding hydrostatic bearing (3), after hydrostatic bearing (4) be fixedly connected with drive pulley (1); Described grinding wheel spindle (5) is gone up front boss (51), the rear boss (52) of being provided with perpendicular to axial direction; Before axially be provided with along grinding wheel spindle (5) between hydrostatic bearing (3) and the grinding wheel spindle (5) before static pressure oil pocket (31), described preceding static pressure oil pocket (31) communicates with preceding hydrostatic bearing flow controller hole (33) on being arranged on preceding hydrostatic bearing (3) sidewall; Before be provided with front axle to static pressure chamber (32) between hydrostatic bearing (3) and the front boss (51), described front axle communicates with the axial flow controller of preceding hydrostatic bearing hole (34) on being arranged on preceding hydrostatic bearing (3) sidewall to static pressure chamber (32); Also be provided with the preceding spill port (35) that communicates with drainback passage on the preceding hydrostatic bearing (3); Axially be provided with back static pressure oil pocket (41) along grinding wheel spindle (5) between described back hydrostatic bearing (4) and the grinding wheel spindle (5), described back static pressure oil pocket (41) communicates with back hydrostatic bearing flow controller hole (43) on being arranged on back hydrostatic bearing (4) sidewall; Be provided with axially static pressure chamber (42), back between back hydrostatic bearing (4) and the rear boss (52), described back axially static pressure chamber (42) be arranged on after the axial flow controller of back hydrostatic bearing hole (44) on hydrostatic bearing (4) sidewall communicate; Also be provided with the back spill port (45) that communicates with drainback passage on the back hydrostatic bearing (4); Also comprise and be arranged on the oil return pipe connecting hole (6) that static pressure grinding head box body (2) goes up and communicates with drainback passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202400867U CN202174492U (en) | 2011-07-08 | 2011-07-08 | Static grinding head for biaxial thrust of grinding wheel spindles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202400867U CN202174492U (en) | 2011-07-08 | 2011-07-08 | Static grinding head for biaxial thrust of grinding wheel spindles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174492U true CN202174492U (en) | 2012-03-28 |
Family
ID=45864399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202400867U Expired - Fee Related CN202174492U (en) | 2011-07-08 | 2011-07-08 | Static grinding head for biaxial thrust of grinding wheel spindles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174492U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831718A (en) * | 2014-03-07 | 2014-06-04 | 佛山市南海区洪智机械厂 | Static-pressure grinding head |
| CN111623038A (en) * | 2020-07-06 | 2020-09-04 | 德本恒嘉精机(昆山)有限公司 | Ultrahigh-precision hydrostatic bearing |
-
2011
- 2011-07-08 CN CN2011202400867U patent/CN202174492U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831718A (en) * | 2014-03-07 | 2014-06-04 | 佛山市南海区洪智机械厂 | Static-pressure grinding head |
| CN111623038A (en) * | 2020-07-06 | 2020-09-04 | 德本恒嘉精机(昆山)有限公司 | Ultrahigh-precision hydrostatic bearing |
| CN111623038B (en) * | 2020-07-06 | 2023-08-29 | 德本恒嘉精机(昆山)有限公司 | Ultra-high precision hydrostatic bearing |
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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: 20120328 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |