CN2138008Y - Permanent magnetic rotary table - Google Patents
Permanent magnetic rotary table Download PDFInfo
- Publication number
- CN2138008Y CN2138008Y CN 92236533 CN92236533U CN2138008Y CN 2138008 Y CN2138008 Y CN 2138008Y CN 92236533 CN92236533 CN 92236533 CN 92236533 U CN92236533 U CN 92236533U CN 2138008 Y CN2138008 Y CN 2138008Y
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- CN
- China
- Prior art keywords
- workbench
- axle
- utility
- magnet
- model
- 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.)
- Expired - Lifetime
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model relates to a permanent magnetic rotary table for processing the sphere base level into the sphere base level of the taper roller through grinders. The utility model mainly solves the problems that the electromagnetic suction cup of the electromagnetic table can be rotary following the table so that gap reluctance is big and the magnetic work piece is small. The utility model is mainly characterized in that a permanent magnetic body, a separation magnet body, a base board and a closely touched outer shell which are arranged under the table; a shell body is provided with a push ball bearing for supporting a shaft; a base is provided with a height regulation mechanism composed of a big nut and a screw. The utility model has the advantages of strong magnetic field, a few faults, convenient regulation, high precision in processing work pieces, etc.
Description
The utility model relates to a kind of grinding machine and processes rotary workbench, particularly a kind ofly processes the permanent magnetism rotary table that the spherical basal plane of taper roller is used.
Abroad, taper roller sphere basal plane is processed by nonmagnetic grinding machine, and is complete in the machinery location, and, require workpiece positioning accuracy height, apply certain in addition difficulty in China.At home, the spherical basal plane of taper roller all adopts the electric magnetic no-core clamp formula by grinding machine processing, holds workpiece with workbench magnetic force and carries out grinding, its weak point is: electromagnetic type sucker structure complexity, need to connect power line, inconvenience is rotated, thereby and the workbench that rotates between have the gap, the gap magnetic resistance is big, although coil power is very big, it is very little also just to become when magnetic force is delivered to workpiece, does not satisfy need of work, and coil also often burns out because of watered and wetting; The poor rigidity of electromagnetic structure axle, the workbench Circular Run-out Tolerance is uncontrollable; Be not provided with the height of table guiding mechanism; Wherein bearing is not provided with proof mechanism of water.
The purpose of this utility model provides a kind of height of table adjustable at above-mentioned weak point, is magnetic source with the permanent magnet, strong permanent magnetism rotary table magnetic force, that rigidity is strong.
Technical solution of the present utility model is: a kind of permanent magnetism rotary table, axle and a base of comprising workbench, band disk, its special character is: the middle part of described base is the spill cavity, and its outer, upper end is provided with the big nut of support housing and the screw of stationary housing.Housing is provided with bearing between housing and the axle, and is provided with bearing between the disk between the disk of base and axle.Workbench have one that closely contact with it, be fixed on shell on the axle, that be provided with annular groove, the bottom of this outer casing groove is provided with base plate, the middle part be provided with the annular every magnet, be provided with permanent magnet every the both sides of magnet.Be provided with in the workbench with outer casing groove on magnet, workbench workpiece corresponding and workbench is divided into inside and outside two-part every magnet.
Can also on described shell, be provided with the screw of break-through up and down in the utility model technical solution.
Can also be provided with groove below the disk of described axle in the utility model technical solution, be provided with corresponding boss in the upper end of housing, this boss and groove form the space, labyrinth that anti-sealing enters.
The utility model rotates this big nut and screw owing to be provided with big nut and screw in the upper end of base, can adjust the height of housing and workbench, and be fixed.Because shell closely contacts with workbench, the internal and external parts of the permanent magnet in the shell, base plate, workbench and workpiece form closed magnetic loop, thereby the workbench magnetic attraction is increased, and magnetic force can reach 8kg/cm
2More than, and shell is fixed on the axle, workbench also rotates with the axis because of its suction.Owing to be provided with thrust ball bearing between the disk of axle and the housing, the rigidity of whole workbench strengthened greatly, to guarantee the requirement of workbench Circular Run-out Tolerance.Owing on shell, be provided with the screw of up and down break-through, when need unload workbench, be screwed in the screw workbench backed down with screw and get final product.Since housing with spool disk between be provided with the space, labyrinth that cooperates, can prevent that sealing enters the infringement to bearing.The utility model adopts permanent magnet, therefore, need not power supply, and is not water funk during work, is service life 15～30 years, significantly reduced the fault in the work, guaranteed the stability in the processing.
Accompanying drawing is the structural representation of the utility model embodiment, and book extract accompanying drawing as an illustration.
The utility model is described in further detail below in conjunction with accompanying drawing: base 1 middle part is a circular cylindrical cavity, its top is provided with the convex edge, big nut 11 is located at the outer end of this convex edge, with outer end, convex edge threaded engagement, but the spacing between adjustment housings 12 and the base 1 can be adjusted workpiece 18 centre-heights, workpiece 18 position of center line are remained by the emery wheel center, to guarantee the requirement of grinding process, screw 10 is located on the convex edge, plays stationary housing 12 and base and practices.Bearing 13 is arranged in the groove of housing 12, and contacts with the disk of axle 5; Upper and lower bearing 8 is located between housing 12 and the axle 5, is provided with lining 9 between this two bearings 8, and lower bearing 8 has bearing cap 7 and cover 6; Bearing 8,13 plays radial and axial positioning action respectively, and the main purpose of bearing 13 is the rigidity that strengthen whole workbench, to guarantee the requirement of workbench Circular Run-out Tolerance.Sprocket wheel 2 is contained on the axle 5 through key 3 and nut 4.The disk back side of axle 5 is provided with groove, and housing 12 is provided with the boss corresponding with this groove, to constitute the space, labyrinth that anti-sealing enters bearing 13.Screw 23 is fixed on shell 16, packing ring 14 on the disk of axle 5, shell 16 is provided with annular groove, base plate 21 is located at the bottom of this groove, every magnet 20 be located at base plate 21 above, every the both sides of magnet 20 is permanent magnet 22, and permanent magnet 22 can be cylindricality or fan permanent magnet combination such as arc and form; The center of workbench 24 is on axle 5, closely contact with shell 16, be provided with every magnet in the workbench 24, should be every magnet upper end near workpiece 18, the lower end with every magnet 20 corresponding contacts, workbench 24 is divided into inside and outside two parts, inside and outside two parts of work 24 are corresponding with permanent magnet 22, like this, and at the internal and external parts of workpiece 18, workbench, can form enclosed magnetic loop by the direction of the magnetic line of force 17 between permanent magnet 22, the base plate 21, produce strong magnetic force and hold workpiece 18 securely.When axle 5 rotates, just drive shell 16, workbench 24, workpiece 18 and rotate together.In process, not only rotation but also revolve round the sun of workpiece is carried out grinding by the emery wheel 19 of last rotation.On shell 16 outer acies faces, be provided with the screw 15 that several unload workbench 24 usefulness, when need unload workbench 24, be screwed in the screw 15 workbench 24 backed down with screw and get final product.
Claims (3)
1, a kind of permanent magnetism rotary table, comprise workbench 24, the band disk the axle 5 and bases 1, it is characterized in that: the middle part of described base 1 is the spill cavity, its upper end outer be provided with the big nut 11 of support housing 12 and the screw 10 of stationary housing 12; Housing 12 is provided with bearing 8 between housing 12 and the axle 5, and is provided with bearing 13 between the disk between the disk of base 1 and axle 5; Workbench 24 have one that closely contact with it, be fixed on axle shell 16 on 5, that be provided with annular groove, the bottom of these shell 16 grooves is provided with base plate 21, the middle part is provided with shape and opens every magnet 20, is provided with permanent magnet 22 every the both sides of magnet 20; Be provided with in the workbench 24 with shell 16 grooves on magnet 20, workbench 24 workpiece 18 corresponding and workbench 24 is divided into inside and outside two-part every magnet.
2, permanent magnetism rotary table according to claim 1 is characterized in that: be provided with the screw 15 of break-through up and down on described shell 16.
3, permanent magnetism rotary table according to claim 1 and 2 is characterized in that: be provided with groove below described axle 5 disks, be provided with corresponding boss in the upper end of housing 12, this boss and groove form the space, labyrinth that anti-sealing enters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92236533 CN2138008Y (en) | 1992-10-12 | 1992-10-12 | Permanent magnetic rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92236533 CN2138008Y (en) | 1992-10-12 | 1992-10-12 | Permanent magnetic rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2138008Y true CN2138008Y (en) | 1993-07-14 |
Family
ID=33778046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92236533 Expired - Lifetime CN2138008Y (en) | 1992-10-12 | 1992-10-12 | Permanent magnetic rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2138008Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126170A (en) * | 2011-01-06 | 2011-07-20 | 无锡市第二轴承有限公司 | Bearing ring grinding equal-high rotary table |
| CN113021105A (en) * | 2021-02-25 | 2021-06-25 | 深圳市昶东鑫线路板有限公司 | Grinding device and grinding method for circuit board pretreatment |
-
1992
- 1992-10-12 CN CN 92236533 patent/CN2138008Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126170A (en) * | 2011-01-06 | 2011-07-20 | 无锡市第二轴承有限公司 | Bearing ring grinding equal-high rotary table |
| CN113021105A (en) * | 2021-02-25 | 2021-06-25 | 深圳市昶东鑫线路板有限公司 | Grinding device and grinding method for circuit board pretreatment |
| CN113021105B (en) * | 2021-02-25 | 2022-02-01 | 深圳市昶东鑫线路板有限公司 | Grinding device and grinding method for circuit board pretreatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |