CN113681327A - Magnetic sucker for ultra-precise spindle - Google Patents
Magnetic sucker for ultra-precise spindle Download PDFInfo
- Publication number
- CN113681327A CN113681327A CN202111082000.7A CN202111082000A CN113681327A CN 113681327 A CN113681327 A CN 113681327A CN 202111082000 A CN202111082000 A CN 202111082000A CN 113681327 A CN113681327 A CN 113681327A
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- Prior art keywords
- magnetic
- permanent magnet
- ultra
- magnetic switch
- hole
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Classifications
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- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
- B23Q3/154—Stationary devices
- B23Q3/1546—Stationary devices using permanent magnets
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A magnetic sucker for an ultra-precise spindle belongs to the field of ultra-precise machining. The magnetic sucker is simple to operate, convenient and fast, and is an effective means for clamping special materials in the ultra-precise cutting process. The magnetic sucker comprises a shell assembly, a transmission assembly, a permanent magnet and two permanent magnet installation shafts; two permanent magnet installation axles rotate side by side and install in housing assembly, and every permanent magnet installation epaxial all is equipped with the permanent magnet, drive assembly drives two permanent magnet installation axles and the permanent magnet rotates and realizes the magnetic pole transform, housing assembly installs on ultra-precision machine tool. The magnetic sucker can realize magnetic pole transformation, so that necessary magnetic force is kept in the cutting process, the magnetic force can be reduced after cutting is finished, and the magnetic sucker is convenient to use and good in using effect.
Description
Technical Field
The invention belongs to the field of ultra-precision machining, and particularly relates to a magnetic sucker for an ultra-precision spindle.
Background
In the ultraprecise cutting process of certain special materials (including radiation), a workpiece needs to be fixed on a spindle, a traditional ultraprecise machine tool usually adopts a vacuum chuck mode to fix the workpiece, but due to the particularity of the cutting materials, if the traditional vacuum chuck is used, the discharged waste gas needs to be subjected to harmless treatment, and because the ultraprecise cutting usually lasts for days or weeks, the quantity of the discharged waste gas is huge, the production cost is greatly increased, and therefore, a magnetic chuck needs to be used in the ultraprecise cutting process of the special materials.
The magnetic suction disc for the ultraprecise spindle is designed at present, mostly consists of a whole permanent magnet or a plurality of small permanent magnets, the magnetic force of the magnetic suction disc is always kept unchanged, so that the stability of a workpiece in the cutting process is ensured, but the workpiece needs to be taken down after the cutting is finished, the work is labor-consuming, and the surface of the workpiece is particularly easy to scratch.
Disclosure of Invention
The invention aims to provide a magnetic sucker for an ultra-precise spindle, which is simple to operate, convenient and quick and is an effective means for solving clamping in the ultra-precise cutting process of special materials.
The technical scheme adopted by the invention is as follows: a magnetic chuck for an ultra-precise spindle comprises a shell assembly, a transmission assembly, a permanent magnet and two permanent magnet installation shafts; two permanent magnet installation axles rotate side by side and install in housing assembly, and every permanent magnet installation epaxial all is equipped with the permanent magnet, drive assembly drives two permanent magnet installation axles and the permanent magnet rotates and realizes the magnetic pole transform, housing assembly installs on ultra-precision machine tool.
Compared with the prior art, the invention has the following beneficial effects:
(1) the magnetic sucker can realize magnetic pole transformation, when the magnetic pole direction of the permanent magnet is perpendicular to the bottom surface of a workpiece in the cutting process, magnetic lines of force mainly pass through the workpiece, so that larger suction force is kept, the magnetic switch shaft is rotated after cutting is completed, the magnetic pole direction of the permanent magnet is parallel to the bottom surface of the workpiece, the magnetic lines of force between the two permanent magnets and the magnetic conductive sheet are closed, the magnetic lines of force passing through the workpiece are reduced, the suction force is reduced, the workpiece is convenient to take down, and the magnetic sucker is convenient to use and good in use effect.
(2) The magnetic sucker adopts axial symmetry arrangement, all parts are symmetrical about the center of the main shaft, and meanwhile, the dynamic balance adjusting hole is formed in the sucker base, so that the dynamic unbalance of the whole sucker in high-speed rotation is small, and the processing precision is ensured.
(3) The positioning clamping ball is arranged on the base of the magnetic sucker, so that the position fixation of the magnetic switch shaft is realized, and the permanent magnet mounting shaft and the magnetic switch shaft are prevented from rotating in the machining process, so that a workpiece falls off.
(4) This magnetic chuck refers to the principle design of magnetic force gauge stand, according to the emulation result can know, using the magnet that the magnetic flux is 750kA/m, the diameter is 100mm, thickness is 10 mm's iron disc work piece, when opening magnetic switch and closing magnetic switch, the suction of work piece lower surface is 7.82 x 103N and 1.59 x 102N respectively, differs 49.2 times, guarantees that the work piece can firmly adsorb on the sucking disc surface after opening magnetic force, can easily take off after closing magnetic force.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is an isometric view of the present invention with the dust cap hidden;
FIG. 3 is a top view of the present invention, hiding the dust cap;
FIG. 4 is a schematic view of a detent ball mounting of the present invention;
FIG. 5 is a schematic view of the present invention mounted on an ultra-precision machine tool;
FIG. 6 is the magnetic pole orientation after the magnetic force is turned on in accordance with the present invention;
FIG. 7 is a graph of magnetic flux density after the magnetic force has been turned on in accordance with the present invention;
FIG. 8 is the magnetic pole orientation after the magnetic force is turned off in accordance with the present invention;
FIG. 9 is a graph of magnetic flux density after the magnetic force is turned off in accordance with the present invention;
wherein: 1. a suction cup base; 2. a magnetic conductive sheet; 3. a first bolt; 4. a permanent magnet mounting shaft; 5. a permanent magnet; 6. locking the nut; 7. a transmission gear; 8. a dust cover; 9. a second bolt; 10. a shaft seat; 11. a third bolt; 12. a magnetic switch shaft; 13. positioning pins; 14. a key; 15. positioning the ball; 16. an ultra-precision machine tool; 17. a workpiece; 18. a diamond turning tool; 19. a housing assembly; 20. a transmission assembly; 21. a spring; 101. a dynamic balance adjusting hole; 102. mounting holes; 103. a second threaded hole; 104 ball clamping mounting holes; 105. a positioning pin mounting hole; 201. a first through hole; 801. a second through hole; 1001. a first threaded hole; 1002. and a third through hole.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and the embodiment provides a magnetic chuck for an ultra-precise spindle, which comprises a shell assembly 19, a transmission assembly 20, a permanent magnet 5, and two permanent magnet mounting shafts 4; two permanent magnet installation axle 4 rotate side by side and install in casing assembly 19, all overlap on every permanent magnet installation axle 4 and be equipped with permanent magnet 5, drive assembly 20 drives two permanent magnet installation axles 4 and permanent magnet 5 and rotates and realize the magnetic pole transform, casing assembly 19 installs on ultra-precision machine tool 16.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 4, and the present embodiment further defines a first specific embodiment, in which the transmission assembly 20 includes two magnetic switch shafts 12 and six transmission gears 7; the two magnetic switch shafts 12 are respectively arranged at two ends of a gap between the two permanent magnet installation shafts 4, transmission gears 7 are respectively arranged at two ends of the two permanent magnet installation shafts 4 and the two magnetic switch shafts 12, and the transmission gears 7 arranged on the permanent magnet installation shafts 4 are meshed with the transmission gears 7 on the corresponding magnetic switch shafts 12. Other components and connection modes are the same as those of the first embodiment.
In this embodiment, the transmission gear 7 is mounted on the corresponding magnetic switch shaft 12 or the permanent magnet mounting shaft 4 through the key 14, so that the transmission gear 7 is constrained in the rotational degree of freedom in the axial direction, and the permanent magnet 5 mounted on the permanent magnet mounting shaft 4 is driven to rotate by rotating the magnetic switch shaft 12, so that the magnetic pole change can be realized.
The third concrete implementation mode: the present embodiment will be described with reference to fig. 1 to 4, and the present embodiment further defines a second embodiment, and in the present embodiment, two permanent magnets 5 are symmetrically mounted on each of the magnetic switch shafts 12, and the position is fixed by a lock nut 6. The other components and the connection mode are the same as those of the second embodiment.
In a fourth embodiment, the present embodiment is described with reference to fig. 1 to 4, which further defines the first embodiment, in which the housing assembly 19 includes a suction cup base 1, a dust cover 8, a shaft seat 10, and two magnetic conductive sheets 2; the novel magnetic chuck is characterized in that the sucker base 1 is provided with a mounting hole 102 which can be fixedly connected with a main shaft of the ultra-precision machine tool 16, the top surface of the sucker base 1 is provided with a mounting groove for mounting the magnetic switch shaft 12, the two magnetic conductive sheets 2 are respectively tightly attached to two side edges of the mounting groove and arranged outside the two magnetic switch shafts 12, the two magnetic conductive sheets 2 are respectively provided with a through hole 201, the two magnetic conductive sheets are fixedly connected with the mounting groove of the sucker base 1 through a bolt 3, the two permanent magnet mounting shafts 4 and the two magnetic switch shafts 12 realize the constraint of five degrees of freedom through shaft holes arranged on the sucker base 1 and the shaft seat 10 and only can realize the rotation motion, the dust cover 8 is provided with a through hole two 801 which corresponds to a threaded hole one 1001 on the shaft seat 10 and is fixedly connected with a bolt two 9, the shaft seat 10 is provided with a through hole three 1002 which corresponds to a threaded hole two 103 on the sucker base 1, fixed connection is achieved through a third bolt 11, a positioning pin mounting hole 105 is formed in the sucker base 1, and the mounting accuracy of the shaft seat 10 is guaranteed through a positioning pin 13.
The fifth concrete implementation mode: referring to fig. 4, the present embodiment is further limited to the fourth embodiment, in the present embodiment, the housing assembly 19 further includes a positioning ball 15 and a spring 21 mounted in a ball mounting hole 104 of the suction cup base 1; the spring 21 is in a compressed state, so that the positioning clamping ball 15 is in contact with a round hole in the magnetic switch shaft 12, the position of the magnetic switch shaft 12 is fixed, and the permanent magnet mounting shaft 4 and the magnetic switch shaft 12 are prevented from rotating in the machining process. The other components and the connection mode are the same as those of the fourth embodiment.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 to 4, and is further limited to the fourth embodiment, in the present embodiment, the whole magnetic chuck is arranged in axial symmetry, and the dynamic balance adjusting hole 101 is provided on the chuck base 1, so that the dynamic unbalance amount of the whole chuck is small when the chuck rotates at high speed, and the processing precision is ensured. The other components and the connection mode are the same as those of the fourth embodiment.
When the magnetic pole direction of the permanent magnet 5 on the magnetic suction cup is shown in fig. 6 and fig. 8, according to simulation results, when a magnet with the magnetic flux of 750kA/m and an iron disc-shaped workpiece with the diameter of 100mm and the thickness of 10mm is used, when the magnetic switch is turned on and turned off, the magnetic flux density of the lower surface of the workpiece is shown in fig. 5 and fig. 6, the suction force of the lower surface of the workpiece is respectively 7.82 × 103N and 1.59 × 102N, the difference is 49.2 times, the workpiece can be firmly adsorbed on the surface of the suction cup after the magnetic force is turned on, and the workpiece can be easily taken down after the magnetic force is turned off.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A magnetic chuck for an ultra-precise spindle is characterized in that: comprises a shell component (19), a transmission component (20), a permanent magnet (5) and two permanent magnet mounting shafts (4); two permanent magnet installation axle (4) rotate side by side and install in casing subassembly (19), all overlap on every permanent magnet installation axle (4) and be equipped with permanent magnet (5), drive assembly (20) drive two permanent magnet installation axles (4) and permanent magnet (5) and rotate and realize the magnetic pole transform, casing subassembly (19) are installed on ultra-precision machine tool (16).
2. The magnetic chuck for ultra-precision spindles according to claim 1, wherein: the transmission assembly (20) comprises two magnetic switch shafts (12) and six transmission gears (7); two magnetic switch axles (12) set up the both ends in clearance between two permanent magnet installation axles (4) respectively, all install drive gear (7) on two permanent magnet installation axle (4) both ends and two magnetic switch axles (12), install drive gear (7) on permanent magnet installation axle (4) and correspond drive gear (7) meshing connection on magnetic switch axle (12).
3. The magnetic chuck for ultra-precision spindles according to claim 2, wherein: two permanent magnets (5) are symmetrically arranged on each magnetic switch shaft (12), and the position fixation is realized through a locking nut (6).
4. The magnetic chuck for ultra-precision spindles according to claim 1, wherein: the shell component (19) comprises a sucker base (1), a dust cover (8), a shaft seat (10) and two magnetic conductive sheets (2); the novel magnetic chuck is characterized in that a mounting hole (102) is formed in the sucker base (1) and can be fixedly connected with a main shaft of an ultra-precision machine tool (16), a mounting groove for mounting a magnetic switch shaft (12) is formed in the top surface of the sucker base (1), two magnetic conductive sheets (2) are respectively tightly attached to two side edges of the mounting groove and are arranged outside the two magnetic switch shafts (12), a first through hole (201) is formed in each of the two magnetic conductive sheets (2), the mounting groove is fixedly connected with the sucker base (1) through a first bolt (3), the two permanent magnet mounting shafts (4) and the two magnetic switch shafts (12) realize constraint of five degrees of freedom through shaft holes formed in the sucker base (1) and the shaft base (10) and only can realize rotary motion, a second through hole (801) is formed in the dust cover (8) and corresponds to the first threaded hole (1001) in the shaft base (10), and the fixed connection is realized through a second bolt (9), the shaft seat (10) is provided with a third through hole (1002) and corresponds to a second threaded hole (103) in the sucker base (1), fixed connection is achieved through a third bolt (11), the sucker base (1) is provided with a positioning pin mounting hole (105), and the mounting accuracy of the shaft seat (10) is guaranteed through a positioning pin (13).
5. The magnetic chuck for ultra-precision spindles according to claim 4, wherein: casing subassembly (19) are still including installing location card ball (15) and spring (21) in card ball mounting hole (104) on sucking disc base (1), and spring (21) are in compression state, make the round hole contact on location card ball (15) and the magnetic switch axle (12), realize the rigidity of magnetic switch axle (12), prevent that permanent magnet installation axle (4) and magnetic switch axle (12) from taking place to rotate in the course of working.
6. The magnetic chuck for ultra-precision spindles according to claim 4, wherein: the dynamic balance adjusting hole (101) is arranged on the sucker base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082000.7A CN113681327A (en) | 2021-09-15 | 2021-09-15 | Magnetic sucker for ultra-precise spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082000.7A CN113681327A (en) | 2021-09-15 | 2021-09-15 | Magnetic sucker for ultra-precise spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113681327A true CN113681327A (en) | 2021-11-23 |
Family
ID=78586697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111082000.7A Pending CN113681327A (en) | 2021-09-15 | 2021-09-15 | Magnetic sucker for ultra-precise spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113681327A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01216737A (en) * | 1988-02-24 | 1989-08-30 | Kanetsuu Kogyo Kk | Magnetic fixing device |
| US5642089A (en) * | 1993-07-08 | 1997-06-24 | Pruftechnik Dieter Busch Ag | Magnetic holder for contact sensor |
| KR100942998B1 (en) * | 2009-08-24 | 2010-02-17 | (주)명진 | Fixing device for parts |
| CN201807758U (en) * | 2010-09-03 | 2011-04-27 | 镇江市江南矿山机电设备有限公司 | Drilling machine iron seat attracted with permanent magnet |
| KR101616999B1 (en) * | 2015-03-16 | 2016-04-29 | 최태광 | Magnetic substance holding device |
| JP2017513235A (en) * | 2014-07-04 | 2017-05-25 | グァン チェ，テ | Magnetic material holding device |
| JP2017537465A (en) * | 2015-01-21 | 2017-12-14 | グァン チェ，テ | Magnetic material holding device |
| CN207104454U (en) * | 2017-09-01 | 2018-03-16 | 株洲悍威磁电科技有限公司 | A kind of round pole electric permanent-magnet suction disc |
| WO2019136500A1 (en) * | 2018-01-11 | 2019-07-18 | Berndorf Band Gmbh | Magnetic retaining device |
| CN210139336U (en) * | 2019-03-15 | 2020-03-13 | 重庆长安汽车股份有限公司 | Magnetic type assembling and positioning structure capable of disassembling positioning piece and automobile structural part |
| CN112141233A (en) * | 2020-10-21 | 2020-12-29 | 宁波尼兰德磁业股份有限公司 | Controllable halbach switch sucking disc of superstrong magnetism |
-
2021
- 2021-09-15 CN CN202111082000.7A patent/CN113681327A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01216737A (en) * | 1988-02-24 | 1989-08-30 | Kanetsuu Kogyo Kk | Magnetic fixing device |
| US5642089A (en) * | 1993-07-08 | 1997-06-24 | Pruftechnik Dieter Busch Ag | Magnetic holder for contact sensor |
| KR100942998B1 (en) * | 2009-08-24 | 2010-02-17 | (주)명진 | Fixing device for parts |
| CN201807758U (en) * | 2010-09-03 | 2011-04-27 | 镇江市江南矿山机电设备有限公司 | Drilling machine iron seat attracted with permanent magnet |
| JP2017513235A (en) * | 2014-07-04 | 2017-05-25 | グァン チェ，テ | Magnetic material holding device |
| JP2017537465A (en) * | 2015-01-21 | 2017-12-14 | グァン チェ，テ | Magnetic material holding device |
| KR101616999B1 (en) * | 2015-03-16 | 2016-04-29 | 최태광 | Magnetic substance holding device |
| CN207104454U (en) * | 2017-09-01 | 2018-03-16 | 株洲悍威磁电科技有限公司 | A kind of round pole electric permanent-magnet suction disc |
| WO2019136500A1 (en) * | 2018-01-11 | 2019-07-18 | Berndorf Band Gmbh | Magnetic retaining device |
| CN210139336U (en) * | 2019-03-15 | 2020-03-13 | 重庆长安汽车股份有限公司 | Magnetic type assembling and positioning structure capable of disassembling positioning piece and automobile structural part |
| CN112141233A (en) * | 2020-10-21 | 2020-12-29 | 宁波尼兰德磁业股份有限公司 | Controllable halbach switch sucking disc of superstrong magnetism |
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Application publication date: 20211123 |
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