CN110919440A - Air-floating type fast knife servo system - Google Patents
Air-floating type fast knife servo system Download PDFInfo
- Publication number
- CN110919440A CN110919440A CN201911167776.1A CN201911167776A CN110919440A CN 110919440 A CN110919440 A CN 110919440A CN 201911167776 A CN201911167776 A CN 201911167776A CN 110919440 A CN110919440 A CN 110919440A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- air
- bearing
- servo system
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention relates to an air-floating fast knife servo system, which comprises a rotor part, an air-floating bearing part, a motor and a water cooling part, wherein the rotor part comprises a T-shaped guide rail, the T-shaped guide rail comprises a vertical guide rail (1) which is vertically arranged and a horizontal guide rail (16) which is horizontally arranged, and an air-floating bearing is arranged on the outer side of the T-shaped guide rail; the air floatation device comprises vertical bearings (20) arranged at the left side and the right side of the vertical guide rail (1), an upper horizontal bearing (19) arranged above the horizontal guide rail (16) and a lower horizontal bearing (18) arranged below the horizontal guide rail (16); and a plurality of throttling holes are formed in the lower horizontal bearing (18), the upper horizontal bearing (19) and the vertical bearing (20), and tree-shaped pressure equalizing grooves are formed in the throttling holes. The device has higher motion precision, longer motion stroke and larger motion acceleration, and can realize high-frequency reciprocating motion under large stroke.
Description
Technical Field
The invention relates to a fast knife servo system, in particular to an air-floating fast knife servo system.
Background
The turning process comprises fast cutter servo machining and slow cutter servo machining. The difference between fast tool servo turning and slow tool servo is as follows: and decomposing the machined complex surface into a rotary surface and a microstructure on the surface, and then superposing the rotary surface and the microstructure. The trace motion of the rotary surface is realized by feeding the X axis and the Z axis, only position detection is carried out on a lathe spindle, trace control is not carried out, and the cutter is driven by a redundant motion axis which is arranged on the Z axis and is independent of a lathe numerical control system, so that the Z axis motion required by turning the microstructure surface is completed. The processing method has the characteristics of high frequency response, high rigidity and high positioning precision. The existing fast knife servo is in contact through machinery, is limited by the influence of friction force and has low machining precision.
In view of the above-mentioned defects, the present designer actively makes research and innovation to create an air-floating fast knife servo system with higher motion precision, longer motion stroke and higher motion acceleration, which can realize high-frequency reciprocating motion under large stroke, so that the air-floating fast knife servo system has more industrial utilization value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an air-floating fast knife servo system.
The technical scheme of the invention is as follows:
the utility model provides an air supporting formula fast sword servo, includes the casing, sets up including active cell part, air supporting bearing part motor and water-cooling part in the casing, its characterized in that:
the moving part comprises a T-shaped guide rail, the T-shaped guide rail comprises a vertical guide rail (1) which is vertically arranged and a horizontal guide rail (16) which is horizontally arranged, an air bearing part is arranged on the outer side of the T-shaped guide rail, a motor stator (21) and a water cooling jacket (13) which provides a cooling function for the motor stator (21) are arranged at the rear end of the air bearing part;
the air bearing part comprises vertical bearings (20) arranged at the left side and the right side of the vertical guide rail (1), an upper horizontal bearing (19) arranged above the horizontal guide rail (16) and a lower horizontal bearing (18) arranged below the horizontal guide rail (16).
Further, all set up a plurality of orifices on horizontal bearing (18), upper horizontal bearing (19), vertical bearing (20) down, the orifice top has all processed arborescent pressure-equalizing groove, and the groove width is 0.12 ~ 0.18mm, and the groove depth is 20 ~ 25 um.
Furthermore, the air sources of the lower horizontal bearing (18), the upper horizontal bearing (19) and the vertical bearing (20) are all provided by a front cover plate (17) connected with the lower horizontal bearing, an air passage is arranged in the front cover plate (17), and one air source is uniformly divided into 6 paths by the front cover plate (17) and is conveyed to the horizontal bearing (18), the upper horizontal bearing (19) and the vertical bearing (20).
Further, the base materials of the lower horizontal bearing (18), the upper horizontal bearing (19) and the vertical bearing (20) are 6061, and the 6061 surface is sprayed with a MoSi2 coating with the thickness of 0.5-1 mm.
Further, the mover part comprises a mover arranged in a water-cooling jacket (13), coils (8) arranged outside the mover are arranged, the coils (8) are connected with the T-shaped guide rail, and a grating ruler (3) is arranged on the vertical guide rail (1).
Further, a heat insulation plate (14) is arranged between the coil (8) and the T-shaped guide rail.
Furthermore, the rear of water-cooling overcoat (13) is provided with back shroud (10), be provided with a plurality of belleville springs (11) on back shroud (10), still be provided with the back spacing push rod that runs through motor stator on back shroud (10), belleville spring (11) and back spacing push rod (12) constitute jointly the back of active cell part is spacing.
Furthermore, a shell (2) and a bottom plate (15) are arranged outside the T-shaped guide rail and the air floatation device; the shell (2) is provided with a reading head support (6), the reading head support is provided with a reading head (5), and a reading head dustproof plate (4) is arranged outside the reading head support (6).
Furthermore, two anti-collision blocks (22) facing the rotor are arranged on the shell (2).
Furthermore, an electrical interface (7) is also arranged on the water-cooling jacket (13).
Furthermore, a water cooling groove is arranged between the motor stator (21) and the water cooling jacket (13), and the water cooling groove is used for cooling the motor stator (21).
Furthermore, a groove for placing the grating ruler (3) is arranged above the vertical guide rail (1), the grating ruler (3) is fixed on the vertical guide rail (1) in an adhesion mode, and a plurality of first lightening holes (101) are formed in the vertical guide rail (1).
Furthermore, the horizontal guide rail (16) is connected with the vertical guide rail (1) through screws, and a plurality of second lightening holes (1601) are formed in the horizontal guide rail (16).
Further, the horizontal guide rail (16) and the vertical guide rail (1) are made of 7075 materials, hard anodic oxidation is conducted on the surfaces, and the thickness of an oxidation layer is 30-40 microns.
Furthermore, the vertical bearing (20) and the upper horizontal bearing (19) are bonded on the shell (2) by epoxy resin glue.
Furthermore, the lower horizontal bearing (18) is bonded on the bottom plate (15) by epoxy resin glue.
By the scheme, the invention at least has the following advantages:
the device has higher motion precision, longer motion stroke and larger motion acceleration, and can realize high-frequency reciprocating motion under large stroke.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic cross-sectional structure of the present invention;
FIG. 2 is a schematic structural view of an air bearing section of the present invention;
FIG. 3 is a schematic view of the construction of the vertical bearing of the present invention;
FIG. 4 is a schematic view of the front cover plate of the present invention;
FIG. 5 is a perspective view of the housing and its internal components of the present invention;
FIG. 6 is a schematic view of the construction of the vertical guide of the present invention;
FIG. 7 is a schematic view of the structure of the horizontal guide rail of the present invention;
FIG. 8 is an exploded view of the present invention;
in the figure:
the device comprises a vertical guide rail 1, a first lightening hole 101, a grating ruler installation groove 102, a shell 2, a grating ruler 3, a reading head dustproof plate 4, a reading head 5, a reading head support 6, an electrical interface 7, a coil 8, a water-cooling joint 9, a rear cover plate 10, a disc spring 11, a rear limiting push rod 12, a water-cooling jacket 13, a heat insulation plate 14, a bottom plate 15, a horizontal guide rail 16, a second lightening hole 1601, a front cover plate 17, a lower horizontal bearing 18, an upper horizontal bearing 19, a vertical bearing 20, a throttling hole 201, a pressure groove 202, a stator 21 and an anti-collision block 22.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 8, a fast knife servo system according to a preferred embodiment of the present invention includes a vertical guide rail 1, a housing 2, a grating ruler 3, a reading head dust-proof plate 4, a reading head 5, a reading head bracket 6, an electrical interface 7, a coil 8, a water-cooling joint 9, a back cover plate 10, a belleville spring 11, a back limit push rod 12, a water-cooling jacket 13, a heat insulation plate 14, a bottom plate 15, a horizontal guide rail 16, a front cover plate 17, a lower horizontal bearing 18, an upper horizontal bearing 19, a vertical bearing 20, a stator 21, and an anti-collision block 22.
The power device part comprises a power shell part, the power shell part comprises a water-cooling outer sleeve 13 and a rear cover plate 10, and the rear cover plate 10 is installed at the tail part of the water-cooling outer sleeve 13. The water-cooling jacket 13 and the rear cover plate 10 form a water-cooling sealing structure of the whole system, and cooling water directly cools the magnetic steel, so that the best cooling effect is ensured. Two water-cooling joints 9 are arranged on the water-cooling jacket 13, one is used as a water inlet pipe, and the other is used as a water outlet pipe.
The power shell is internally provided with a stator 21 and a rotor part, the rotor part comprises a vertical guide rail 1, a grating ruler 3, a coil 8, a heat insulation plate 14 and a horizontal guide rail 16, the vertical guide rail 1 and the horizontal guide rail 16 are fastened by screws to form a T-shaped guide rail, and a plurality of second weight reducing holes 1601 are drilled on the non-air-floatation surface part of the horizontal guide rail 16 for weight reduction. The size of the air bearing surface is ensured, and the whole weight of the rotor is reduced as much as possible to ensure that the motor can reach the maximum acceleration. The coil 8 is installed in the outside of stator 21, installs heat insulating board 14 between guide rail and the coil 8, prevents that the heat that coil 8 produced from transmitting to T type guide rail afterbody, leads to the guide rail plane to be heated the deformation air supporting surface card and dies. The grating ruler 3 is fixed in the grating ruler mounting groove 102 on the vertical guide rail 1 in a bonding mode, and the stability and the looseness of the grating ruler 3 during high-frequency movement of the rotor are guaranteed. The vertical guide rail 1 and the horizontal guide rail 16 are connected to form a T-shaped guide rail, the specific connection method is that the vertical guide rail 1 is vertically connected to the center of the horizontal guide rail 16, and the T-shaped guide rail is connected with the coil 8 through titanium alloy screws and is not easy to conduct heat. The front end of the vertical guide rail 1 is connected with a knife rest, and the saw-tooth structure ensures that the knife rest cannot move up and down in the movement process. The vertical guide rail 1 and the horizontal guide rail 16 are made of aluminum alloy materials, and the surfaces of the vertical guide rail and the horizontal guide rail are subjected to hard anodic oxidation, so that the grinding is easy while the light weight is ensured. A plurality of first lightening holes 101 are arranged on the non-air-bearing surface of the vertical guide rail 1.
The lower horizontal bearing 18, the upper horizontal bearing 19 and the vertical bearing 20 form an integral bearing structure of the system, and the six bearings are fixed on the shell 2 and the bottom plate 15 in an adhesive mode (epoxy resin adhesive), so that structural body deformation caused by screw connection is overcome, and a larger air floatation surface size is provided in a limited space. The clearance between the guide rail and the bearing is guaranteed to be about 10-20 um, and the clearance can effectively guarantee the rigidity of the bearing and the motion stability of the guide rail. The upper horizontal bearing 19 and the vertical bearing 20 are made into two parts of a split structure, the structure is simpler, the processing difficulty is lower, only the air floatation surface is required to meet the high-precision requirement of the flatness, single-side grinding is carried out, the processing difficulty is lower, during bearing assembly, the T-shaped guide rail air floatation surfaces are respectively assembled by taking as the reference, the requirement that the air floatation surfaces of the horizontal bearing 19 and the vertical bearing 20 are relatively vertical is not required to be met, the force processing difficulty is reduced, and the assembly difficulty is also reduced. The bearing base material is made of an aluminum alloy (6061) material, the MoSi2 coating is sprayed on the surface of the bearing base material through high-temperature plasma, the thickness of the MoSi2 coating is 0.5-1 mm, the surface hardness of the bearing is improved, grinding processing is facilitated, the wear resistance and the lubricity of the bearing are improved, and the bearing can be used under the conditions of humidity and water vapor. The front and back of each bearing are provided with 5 throttle holes, the depth is 1mm, the diameter is (0.12-0.18 mm and unequal), tree-shaped pressure equalizing grooves with the depth of 20-30 um and the width of about 0.16mm are processed on each small hole, the pressure of each point of the air floatation surface is equal, the pressure of the air floatation surface is uniform, and the stability of movement is ensured. Two cylindrical crash blocks 22 facing the mover section are also provided on the side of the housing 2.
The device has the following advantages:
the device has higher motion precision, longer motion stroke and larger motion acceleration, and can realize high-frequency reciprocating motion under large stroke.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (16)
1. The utility model provides an air supporting formula fast sword servo, includes the casing, sets up including active cell part, air supporting bearing part motor and water-cooling part in the casing, its characterized in that:
the moving part comprises a T-shaped guide rail, the T-shaped guide rail comprises a vertical guide rail (1) which is vertically arranged and a horizontal guide rail (16) which is horizontally arranged, an air bearing part is arranged on the outer side of the T-shaped guide rail, a motor stator (21) and a water cooling jacket (13) which provides a cooling function for the motor stator (21) are arranged at the rear end of the air bearing part;
the air bearing part comprises vertical bearings (20) arranged at the left side and the right side of the vertical guide rail (1), an upper horizontal bearing (19) arranged above the horizontal guide rail (16) and a lower horizontal bearing (18) arranged below the horizontal guide rail (16).
2. The air-floating fast knife servo system of claim 1, wherein: all set up a plurality of orifices on lower horizontal bearing (18), upper horizontal bearing (19), vertical bearing (20), the orifice top has all processed arborescent pressure-equalizing groove, and the groove width is 0.12 ~ 0.18mm, and the groove depth is 20 ~ 25 um.
3. The air-floating fast knife servo system of claim 2, wherein: the air sources of the lower horizontal bearing (18), the upper horizontal bearing (19) and the vertical bearing (20) are all provided by a front cover plate (17) connected with the lower horizontal bearing, an air passage is arranged in the front cover plate (17), and one air source is uniformly divided into 6 paths by the front cover plate (17) and is conveyed to the horizontal bearing (18), the upper horizontal bearing (19) and the vertical bearing (20).
4. The air-floating fast knife servo system of claim 1, wherein: the base materials of the lower horizontal bearing (18), the upper horizontal bearing (19) and the vertical bearing (20) are 6061, and the 6061 surface is sprayed with a MoSi2 coating with the thickness of 0.5-1 mm.
5. An air-floating fast knife servo system according to claim (1), characterized in that: move the subdivision including setting up the active cell in water-cooling overcoat (13), set up coil (8) outside the active cell, coil (8) are connected T shape guide rail, install grating chi (3) on vertical guide rail (1).
6. An air-floating fast knife servo system according to claim 5, characterized in that: and a heat insulation plate (14) is also arranged between the coil (8) and the T-shaped guide rail.
7. An air-floating fast knife servo system according to claim (1), characterized in that: the rear of water-cooling overcoat (13) is provided with back shroud (10), be provided with a plurality of belleville springs (11) on back shroud (10), still be provided with the back spacing push rod that runs through motor stator on back shroud (10), belleville spring (11) and back spacing push rod (12) constitute jointly the back of active cell part is spacing.
8. The air-floating fast knife servo system of claim 1, wherein: a shell (2) and a bottom plate (15) are arranged outside the T-shaped guide rail and the air floating device; the reading head device is characterized in that a reading head support (6) is arranged on the shell (2), a reading head (5) is arranged on the reading head support, and a reading head dustproof plate (4) is arranged outside the reading head support (6).
9. The air-floating fast knife servo system of claim 6, wherein: two anti-collision blocks (22) facing the rotor are arranged on the shell (2).
10. An air-floating fast knife servo system according to claim (1), characterized in that: and the water-cooling jacket (13) is also provided with an electrical interface (7).
11. The air-floating fast knife servo system of claim 1, wherein: a water cooling groove is arranged between the motor stator (21) and the water cooling jacket (13), and the water cooling groove is used for cooling the motor stator (21).
12. The air-floating fast knife servo system of claim 1, wherein: a groove for placing the grating ruler (3) is formed above the vertical guide rail (1), the grating ruler (3) is fixed on the vertical guide rail (1) in an adhesion mode, and a plurality of first lightening holes (101) are formed in the vertical guide rail (1).
13. The air-floating fast knife servo system of claim 1, wherein: the horizontal guide rail (16) is connected with the vertical guide rail (1) through screws, and a plurality of second lightening holes (1601) are formed in the horizontal guide rail (16).
14. The air-floating fast knife servo system of claim 1, wherein: the horizontal guide rail (16) and the vertical guide rail (1) are made of 7075 materials, hard anodic oxidation is conducted on the surfaces, and the thickness of an oxidation layer ranges from 30um to 40 um.
15. The air-floating fast knife servo system of claim 1, wherein: the vertical bearing (20) and the upper horizontal bearing (19) are bonded on the shell (2) by epoxy resin glue.
16. The air-floating fast knife servo system of claim 1, wherein: the lower horizontal bearing (18) is bonded on the bottom plate (15) by epoxy resin glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167776.1A CN110919440A (en) | 2019-11-25 | 2019-11-25 | Air-floating type fast knife servo system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167776.1A CN110919440A (en) | 2019-11-25 | 2019-11-25 | Air-floating type fast knife servo system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110919440A true CN110919440A (en) | 2020-03-27 |
Family
ID=69851004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911167776.1A Pending CN110919440A (en) | 2019-11-25 | 2019-11-25 | Air-floating type fast knife servo system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110919440A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495527A (en) * | 2020-04-07 | 2021-10-12 | 南京理工大学 | Servo master-slave cooperative cutting method for fast-slow tool |
-
2019
- 2019-11-25 CN CN201911167776.1A patent/CN110919440A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495527A (en) * | 2020-04-07 | 2021-10-12 | 南京理工大学 | Servo master-slave cooperative cutting method for fast-slow tool |
| CN113495527B (en) * | 2020-04-07 | 2022-11-04 | 南京理工大学 | Servo master-slave cooperative cutting method for fast-slow tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200189052A1 (en) | Tool drive having a spindle shaft and operating method | |
| US8056453B2 (en) | Fast tool servo | |
| CN102078974A (en) | Air floatation high-speed electric main shaft | |
| CN110919440A (en) | Air-floating type fast knife servo system | |
| CN101625014B (en) | Static-pressure oil pad with damping flow channel oil chamber and damping sealing oil edge | |
| CN108714757A (en) | A kind of five axis laser head assemblies for laser cutting machine | |
| CN212122519U (en) | Air-floating type fast knife servo system | |
| CN101450407A (en) | Electro-hydraulic servo valve sleeve throttling square-hole processing tool | |
| CN105339115B (en) | The main shaft device and lathe of lathe | |
| CN111889699B (en) | Application method of quick cutter servo device | |
| CN103752853A (en) | Numerical control super-precision diamond complex optical element lathe | |
| CN101774031B (en) | Ultrahigh speed precise pneumatic micro spindle unit | |
| Goldberg | Improving productivity by using innovative metal cutting solutions with an emphasis on green machining | |
| CN103008694B (en) | High-precision air floatation electric main shaft | |
| CN105127454A (en) | Numerically-controlled machine tool provided with intelligent protection device | |
| CN111120512A (en) | Throttle air bearing and fast axle servo based on this bearing | |
| CN108788628A (en) | The processing method of curved surface CD textures | |
| CN216326469U (en) | Vertical precise numerical control rotary table | |
| CN109622997A (en) | A kind of perseverance axle center independence spindle box | |
| CN102935525A (en) | Double-main-shaft type ultraprecise fly cutting milling machine | |
| CN212429525U (en) | Throttle air bearing and fast axle servo device based on porous air bearing | |
| CN202028776U (en) | Air-flotation electric spindle for numerical control machine | |
| CN210307224U (en) | Air floatation main shaft structure of dicing saw with preposed air passage | |
| CN114619287B (en) | Moment anti-interference mechanism of multi-loop rotating shaft | |
| CN218426200U (en) | Five laser beam machining machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |