CN205414428U - Pneumatic spindle unit with hemisphere bearing - Google Patents
Pneumatic spindle unit with hemisphere bearing Download PDFInfo
- Publication number
- CN205414428U CN205414428U CN201620032457.5U CN201620032457U CN205414428U CN 205414428 U CN205414428 U CN 205414428U CN 201620032457 U CN201620032457 U CN 201620032457U CN 205414428 U CN205414428 U CN 205414428U
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- Prior art keywords
- hemisphere
- lead ring
- main shaft
- bearing
- air
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Abstract
The utility model provides a pneumatic spindle unit with hemisphere bearing, holding in the palm the axle subassembly and the right side including box, main shaft, a left side and holding in the palm an axle subassembly, a left side is held in the palm the axle subassembly and the right side and is ask an axle subassembly to include all that hemisphere sets off piece, hemisphere air bearing, axle bed, the main shaft wear to establish a left side hold in the palm the axle subassembly and the right side hold in the palm the hemisphere of a subassembly set off piece, hemisphere air bearing, axle bed, the centre bore in. The axle bed has hemisphere cavity and central through hole, it sets off the piece to be equipped with hemisphere in the hemisphere cavity of axle bed, it is provided with hemisphere air bearing and both cooperations to set off at axle bed and hemisphere between the piece, hemisphere air bearing is for lacking the hemispherical of a spherical crown, have the bowl form of the no collet of hemisphere cavity likeness in form and have the central through hole, half spherical structure messenger part can automatic aligning alignment, it forms the air film to ask the axle subassembly and the right side to ask hemisphere air bearing and the hemisphere of a subassembly to set off through a left side between the piece, it is rotatory to support the main shaft zero friction, guarantee the rotatory stationarity of main shaft, need not lubricatedly, and processing, the equipment is easy.
Description
Technical field
This utility model relates to automated machine tool device technique field, particularly relates to a kind of pneumatic main shaft device with hemisphere bearing.
Background technology
Along with the development of science and technology, the demand of various machine tools gets more and more, more and more higher to machine tool required precision.Cannot meet the demand of current scientific technological advance by traditional craft or automanual operational approach, for machine tools such as car, milling, mills in the precision machining processes of parts, the stationarity that main shaft rotates, spindle abrasion degree determines parts machining precision.The main shaft of machine tool equipment supports mainly by bearing mechanical, mechanical friction abrasion is the most serious, along with process time increases, the stationarity that main shaft rotates is deteriorated, the precise processing precision of parts is extremely difficult to requirement, this type of spindle processing, assembling complexity, bearing needs lubrication, it is impossible to apply in the industry such as food, medical treatment.
Utility model content
This utility model embodiment provides a kind of pneumatic main shaft device with hemisphere bearing, to solve spindle processing, to assemble problem complicated, that smooth rotation is poor, needs constantly lubricate.
In order to solve the problems referred to above, this utility model embodiment discloses a kind of pneumatic main shaft device with hemisphere bearing, including casing, main shaft, left torr shaft assembly and right torr shaft assembly.
Left torr shaft assembly and right torr shaft assembly all include hemisphere susceptor, hemisphere air-bearing, axle bed.
Axle bed has that the axle bed in half-spherical cavity and central through hole, left torr shaft assembly and right torr shaft assembly is fixing with two ends, casing left and right respectively to be connected and two opposing settings of axle bed；Being provided with hemisphere susceptor in the half-spherical cavity of axle bed, hemisphere susceptor is the hemispherical of a scarce spherical crown, and has central through hole；Between axle bed with hemisphere susceptor, it is provided with hemisphere air-bearing coordinate with both, hemisphere air-bearing is the hemispherical of a scarce spherical crown, there is half-spherical cavity and there is central through hole, outer wall surface at hemisphere air-bearing has the cannelure of gas storage, is provided with air vent and connects with the cannelure of hemisphere air-bearing on axle bed；Main shaft be located in left torr shaft assembly and the hemisphere susceptor of right torr shaft assembly, hemisphere air-bearing, axle bed, centre bore in, main shaft is multidiameter, the right side of the step surface of main shaft and the hemisphere susceptor of the right torr shaft assembly merga pass screw that matches is fixed, the left end of main shaft is provided with resilient disc, resilient disc is set on main shaft and is fixedly connected on by screw the left side of the hemisphere susceptor of left torr shaft assembly by centre bore, is provided with locking nut and is connected main shaft and left torr shaft assembly and the locking of right torr shaft assembly with main shaft on the left of resilient disc.
Optionally, also including that guide ring body, guide ring body are fixedly mounted in casing and are arranged between two axle beds, guide ring body is set on main shaft by back-up ring, the first lead ring, the second lead ring, the 3rd lead ring, the central through hole of spacer ring.Guide ring body includes back-up ring, lead ring body, first lead ring, second lead ring, 3rd lead ring, spacer ring, lead ring body is tubular, two back-up rings with central through hole two ends with lead ring body respectively are fixed to be connected and are enclosed in a cavity, the the first ring-type lead ring stacking arrangement it is provided with in this cavity, second lead ring, 3rd lead ring, first lead ring, second lead ring, ring-type spacer ring isolation it is provided with between 3rd lead ring, lead ring body is provided with multiple air flue and is respectively communicated with the first lead ring and source of the gas, second lead ring and source of the gas, 3rd lead ring and source of the gas, first lead ring, second lead ring, 3rd lead ring is made by air-permeable material, during the air flue supply connected with the first lead ring, make main shaft friction-free rotary in guide ring body.
Optionally, the right-hand member of main shaft stretches out in outside the hemisphere susceptor of right torr shaft assembly, is provided centrally with plunger shaft at this end, and being provided with in plunger shaft can be along the piston of main shaft axially activity, and piston is connected with the air-actuated jaw being arranged on this end of main shaft.Arranging the first air flue and the second air flue in main shaft, one end of the first air flue connects with the second lead ring, and the other end connects with plunger shaft, makes piston court away from the direction activity of right torr shaft assembly and then make air flue claw unclamp in the first air flue during supply；One end of second air flue connects with the 3rd lead ring, and the other end connects with plunger shaft, makes piston towards the direction activity of convergence right torr shaft assembly and then make air-actuated jaw promptly in the second air flue during supply.
Optionally, the first lead ring has 3, and the first lead ring, the second lead ring, the 3rd lead ring are according to the order spread configuration of first lead ring the-the second lead ring the-the first lead ring the-the three lead ring the-the first lead ring.
Optionally, guide ring body is fixed with casing by location screw, and location screw connects lead ring body and casing respectively.
Optionally, being equipped with angular encoder at main shaft left end, angular encoder and main shaft pass through toothed belt transmission.
Optionally, hemisphere air-bearing is graphite hemisphere air-bearing.
This utility model has the advantages that
A kind of pneumatic main shaft device with hemisphere bearing of this utility model, and all include hemisphere susceptor at left torr shaft assembly and right torr shaft assembly, hemisphere air-bearing, axle bed, axle bed has half-spherical cavity and central through hole, hemisphere susceptor it is provided with in the half-spherical cavity of axle bed, between axle bed with hemisphere susceptor, it is provided with hemisphere air-bearing coordinate with both, hemisphere air-bearing is the hemispherical of a scarce spherical crown, there is half-spherical cavity likeness in form and without the bowl-shape of collet and there is central through hole, hemispherical dome structure makes the parts can automatic aligning centering, after spindle mounted can be avoided the most concentric, make main shaft smooth rotation good.Outer wall surface at hemisphere air-bearing has the cannelure of gas storage, is provided with air vent and connects with the cannelure of hemisphere air-bearing on axle bed；By forming air film, supports main shaft friction-free rotary between left torr shaft assembly and the hemisphere air-bearing of right torr shaft assembly and hemisphere susceptor, it is ensured that the stationarity that main shaft rotates, it is not necessary to lubrication, and processing, assembling are easily.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit those of ordinary skill in the art be will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as restriction of the present utility model.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
Fig. 1 is the assembling structural representation of a kind of pneumatic main shaft device with hemisphere bearing.
1, locking nut；2, resilient disc；3, hemisphere susceptor；4, hemisphere air-bearing；5, axle bed；6, main shaft；7, back-up ring；8, the first lead ring；9, lead ring body；10, the second lead ring；11, spacer ring；12, location screw；13, the 3rd lead ring；14, piston；15, air-actuated jaw；16, casing；17, angular encoder；18, synchronous pulley
Detailed description of the invention
Below with reference to accompanying drawing and describe this utility model in detail in conjunction with the embodiments.It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
As it is shown in figure 1, a kind of pneumatic main shaft device with hemisphere bearing, including casing, main shaft, left torr shaft assembly and right torr shaft assembly.
Left torr shaft assembly and right torr shaft assembly all include hemisphere susceptor, hemisphere air-bearing, axle bed.Axle bed has that the axle bed in half-spherical cavity and central through hole, left torr shaft assembly and right torr shaft assembly is fixing with two ends, casing left and right respectively to be connected and two opposing settings of axle bed；Being provided with hemisphere susceptor in the half-spherical cavity of axle bed, hemisphere susceptor is the hemispherical of a scarce spherical crown, and has central through hole.Between axle bed with hemisphere susceptor, it is provided with hemisphere air-bearing coordinate with both, hemisphere air-bearing is the hemispherical of a scarce spherical crown, there is half-spherical cavity and there is central through hole, outer wall surface at hemisphere air-bearing has the cannelure of gas storage, is provided with air vent and connects with the cannelure of hemisphere air-bearing on axle bed.
Main shaft be located in left torr shaft assembly and the hemisphere susceptor of right torr shaft assembly, hemisphere air-bearing, axle bed, centre bore in.
Main shaft is multidiameter, the right side of the step surface of main shaft and the hemisphere susceptor of the right torr shaft assembly merga pass screw that matches is fixed, the left end of main shaft is provided with resilient disc, resilient disc is set on main shaft and is fixedly connected on by screw the left side of the hemisphere susceptor of left torr shaft assembly by centre bore, is provided with locking nut and is connected main shaft and left torr shaft assembly and the locking of right torr shaft assembly with main shaft on the left of resilient disc.
A kind of pneumatic main shaft device with hemisphere bearing, also includes that guide ring body, guide ring body are fixedly mounted in casing and are arranged between two axle beds, and guide ring body is fixed with casing by location screw, positions screw and connects lead ring body and casing respectively.Guide ring body is set on main shaft by back-up ring, the first lead ring, the second lead ring, the 3rd lead ring, the central through hole of spacer ring.
Guide ring body includes back-up ring, lead ring body, first lead ring, second lead ring, 3rd lead ring, spacer ring, lead ring body is tubular, two back-up rings with central through hole two ends with lead ring body respectively are fixed to be connected and are enclosed in a cavity, the the first ring-type lead ring stacking arrangement it is provided with in this cavity, second lead ring, 3rd lead ring, first lead ring, second lead ring, ring-type spacer ring isolation it is provided with between 3rd lead ring, lead ring body is provided with multiple air flue and is respectively communicated with the first lead ring and source of the gas, second lead ring and source of the gas, 3rd lead ring and source of the gas, first lead ring, second lead ring, 3rd lead ring is made by air-permeable material, during the air flue supply connected with the first lead ring, make main shaft friction-free rotary in guide ring body.
The right-hand member of main shaft stretches out in outside the hemisphere susceptor of right torr shaft assembly, is provided centrally with plunger shaft at this end, and being provided with in plunger shaft can be along the piston of main shaft axially activity, and piston is connected with the air-actuated jaw being arranged on this end of main shaft.
Arranging the first air flue and the second air flue in main shaft, one end of the first air flue connects with the second lead ring, and the other end connects with plunger shaft, makes piston court away from the direction activity of right torr shaft assembly and then make air flue claw unclamp in the first air flue during supply；One end of second air flue connects with the 3rd lead ring, and the other end connects with plunger shaft, makes piston towards the direction activity of convergence right torr shaft assembly and then make air-actuated jaw promptly in the second air flue during supply.
First lead ring has 3, and the first lead ring, the second lead ring, the 3rd lead ring are according to the order spread configuration of first lead ring the-the second lead ring the-the first lead ring the-the three lead ring the-the first lead ring.
Being equipped with angular encoder at main shaft left end, angular encoder and main shaft pass through toothed belt transmission.Present embodiments providing a kind of pneumatic main shaft device with hemisphere bearing, substitute plain bearing supports main shaft with hemisphere air-bearing, it is more uniform that the cannelure of the outer wall surface of hemisphere air-bearing 4 makes hemisphere air-bearing 4 supply.Hemisphere air-bearing 4 is graphite material, and breathability is fine, by hemisphere air-bearing 4 by air penetration to forming air film between hemisphere air-bearing 4 and hemisphere susceptor 3.By forming air film between hemisphere air-bearing and hemisphere susceptor, rely on pure air to be floated by main shaft, make main shaft friction-free rotary, it is ensured that the stationarity that main shaft rotates, it is to avoid the plain bearing abrasion to main shaft.
Main shaft two ends are designed as two hemispheric hemisphere susceptor and are connected with main shaft, can automatic aligning centering, it is to avoid concentric after spindle mounted, affect machining accuracy.Hemisphere air-bearing is also configured as dome-type, two hemisphere susceptor facing-ups with on main shaft, make air film uniform, it is ensured that main shaft floats by lift of gas uniform.
This hemisphere air-bearing uses graphite material to be processed into hemispherical, graphite is selected to have the advantage that excellent self lubricity as material, good resistance to chemical corrosion, higher thermal conductivity and heat stability, minimum thermal coefficient of expansion, enough mechanical strengths and shock resistance, it is easy to machining, can be processed into various geometry.
Front-end of spindle i.e. right-hand member connects air-actuated jaw equipped with piston, stretches by controlling piston to main shaft ventilation, thus controls air-actuated jaw and unclamp, clamp.Fixture and main shaft connect as one, it is ensured that the rotating accuracy of workpiece, and rotating accuracy is up to 0.1 μm.
Main shaft floats supply cleverly, piston gas-supplying structure designs inside spindle box body, makes main shaft device structure compacter.On main shaft, one guide ring body of design and installation is piston supply, facilitates main shaft to supply under rotation status.Guide ring Shape design is air floating structure, is fixed with spindle box body by guide ring body, prevents from rotating.When supplying to guide ring body, can the most not affect main shaft for main shaft supply and rotate.
Rear-end of spindle i.e. left end can be equipped with angular encoder, by toothed belt transmission, controls Spindle rotation angle degree.
A kind of pneumatic main shaft device with hemisphere bearing of this utility model, and all include hemisphere susceptor at left torr shaft assembly and right torr shaft assembly, hemisphere air-bearing, axle bed, axle bed has half-spherical cavity and central through hole, hemisphere susceptor it is provided with in the half-spherical cavity of axle bed, between axle bed with hemisphere susceptor, it is provided with hemisphere air-bearing coordinate with both, hemisphere air-bearing is the hemispherical of a scarce spherical crown, there is half-spherical cavity likeness in form and without the bowl-shape of collet and there is central through hole, hemispherical dome structure makes the parts can automatic aligning centering, after spindle mounted can be avoided the most concentric, make main shaft smooth rotation good.Outer wall surface at hemisphere air-bearing has the cannelure of gas storage, is provided with air vent and connects with the cannelure of hemisphere air-bearing on axle bed；By forming air film, supports main shaft friction-free rotary between left torr shaft assembly and the hemisphere air-bearing of right torr shaft assembly and hemisphere susceptor, it is ensured that the stationarity that main shaft rotates, it is not necessary to lubrication, and processing, assembling are easily.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of this utility model each embodiment technical scheme.
Claims (7)
1. a pneumatic main shaft device with hemisphere bearing, it is characterised in that include casing, main shaft, left torr shaft assembly and right torr shaft assembly,
Left torr shaft assembly and right torr shaft assembly all include hemisphere susceptor, hemisphere air-bearing, axle bed,
Axle bed has that the axle bed in half-spherical cavity and central through hole, left torr shaft assembly and right torr shaft assembly is fixing with two ends, casing left and right respectively to be connected and two opposing settings of axle bed；
Being provided with hemisphere susceptor in the half-spherical cavity of axle bed, hemisphere susceptor is the hemispherical of a scarce spherical crown, and has central through hole；
Between axle bed with hemisphere susceptor, it is provided with hemisphere air-bearing coordinate with both, hemisphere air-bearing is the hemispherical of a scarce spherical crown, there is half-spherical cavity and there is central through hole, outer wall surface at hemisphere air-bearing has the cannelure of gas storage, is provided with air vent and connects with the cannelure of hemisphere air-bearing on axle bed；
Main shaft be located in left torr shaft assembly and the hemisphere susceptor of right torr shaft assembly, hemisphere air-bearing, axle bed, centre bore in,
Main shaft is multidiameter, the right side of the step surface of main shaft and the hemisphere susceptor of the right torr shaft assembly merga pass screw that matches is fixed, the left end of main shaft is provided with resilient disc, resilient disc is set on main shaft and is fixedly connected on by screw the left side of the hemisphere susceptor of left torr shaft assembly by centre bore, is provided with locking nut and is connected main shaft and left torr shaft assembly and the locking of right torr shaft assembly with main shaft on the left of resilient disc.
A kind of pneumatic main shaft device with hemisphere bearing the most according to claim 1, it is characterized in that, also include guide ring body, guide ring body is fixedly mounted in casing and is arranged between two axle beds, guide ring body is set on main shaft by back-up ring, the first lead ring, the second lead ring, the 3rd lead ring, the central through hole of spacer ring
Guide ring body includes back-up ring, lead ring body, first lead ring, second lead ring, 3rd lead ring, spacer ring, lead ring body is tubular, two back-up rings with central through hole two ends with lead ring body respectively are fixed to be connected and are enclosed in a cavity, the the first ring-type lead ring stacking arrangement it is provided with in this cavity, second lead ring, 3rd lead ring, first lead ring, second lead ring, ring-type spacer ring isolation it is provided with between 3rd lead ring, lead ring body is provided with multiple air flue and is respectively communicated with the first lead ring and source of the gas, second lead ring and source of the gas, 3rd lead ring and source of the gas, first lead ring, second lead ring, 3rd lead ring is made by air-permeable material, during the air flue supply connected with the first lead ring, make main shaft friction-free rotary in guide ring body.
A kind of pneumatic main shaft device with hemisphere bearing the most according to claim 1 and 2, it is characterised in that
The right-hand member of main shaft stretches out in outside the hemisphere susceptor of right torr shaft assembly, is provided centrally with plunger shaft at this end, and being provided with in plunger shaft can be along the piston of main shaft axially activity, and piston is connected with the air-actuated jaw being arranged on this end of main shaft,
Arranging the first air flue and the second air flue in main shaft, one end of the first air flue connects with the second lead ring, and the other end connects with plunger shaft, makes piston court away from the direction activity of right torr shaft assembly and then make air flue claw unclamp in the first air flue during supply；One end of second air flue connects with the 3rd lead ring, and the other end connects with plunger shaft, makes piston towards the direction activity of convergence right torr shaft assembly and then make air-actuated jaw promptly in the second air flue during supply.
A kind of pneumatic main shaft device with hemisphere bearing the most according to claim 2, it is characterized in that, first lead ring has 3, and the first lead ring, the second lead ring, the 3rd lead ring are according to the order spread configuration of first lead ring the-the second lead ring the-the first lead ring the-the three lead ring the-the first lead ring.
A kind of pneumatic main shaft device with hemisphere bearing the most according to claim 2, it is characterised in that guide ring body is fixed with casing by location screw, location screw connects lead ring body and casing respectively.
A kind of pneumatic main shaft device with hemisphere bearing the most according to claim 2, it is characterised in that be equipped with angular encoder at main shaft left end, angular encoder and main shaft pass through toothed belt transmission.
A kind of pneumatic main shaft device with hemisphere bearing the most according to claim 1, it is characterised in that hemisphere air-bearing is graphite hemisphere air-bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032457.5U CN205414428U (en) | 2016-01-13 | 2016-01-13 | Pneumatic spindle unit with hemisphere bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032457.5U CN205414428U (en) | 2016-01-13 | 2016-01-13 | Pneumatic spindle unit with hemisphere bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205414428U true CN205414428U (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620032457.5U Withdrawn - After Issue CN205414428U (en) | 2016-01-13 | 2016-01-13 | Pneumatic spindle unit with hemisphere bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205414428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478808A (en) * | 2016-01-13 | 2016-04-13 | 北京海普瑞森科技发展有限公司 | Pneumatic main shaft device with semispherical bearing |
-
2016
- 2016-01-13 CN CN201620032457.5U patent/CN205414428U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478808A (en) * | 2016-01-13 | 2016-04-13 | 北京海普瑞森科技发展有限公司 | Pneumatic main shaft device with semispherical bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20171121 |
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| AV01 | Patent right actively abandoned |