CN202814361U - Ultrahigh-precision automatic multi-tooth dividing table - Google Patents
Ultrahigh-precision automatic multi-tooth dividing table Download PDFInfo
- Publication number
- CN202814361U CN202814361U CN 201220486252 CN201220486252U CN202814361U CN 202814361 U CN202814361 U CN 202814361U CN 201220486252 CN201220486252 CN 201220486252 CN 201220486252 U CN201220486252 U CN 201220486252U CN 202814361 U CN202814361 U CN 202814361U
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- fixed
- tooth disk
- lifting tube
- housing pedestal
- disk
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Abstract
The utility model relates to the geometrical quantity testing metering technology and instrument technology field, and specifically discloses an ultrahigh-precision automatic multi-tooth dividing table. The lower part of a pedestal of a housing of the dividing table is fixedly connected with a stepping motor, and the upper part of the pedestal of the housing is fixedly connected with a static tooth disk. The inside of the pedestal of the housing is provided with a coaxial elevating cylinder, and a 26-bit photoelectric encoder is fixed on the bottom of the elevating cylinder. A leading screw which is fixed on the lower part of a spindle of the 26-bit photoelectric encoder is arranged on a spindle of the stepping motor. When the stepping motor moves up and down, the elevating cylinder is driven to move up and down. The upper end of the 26-bit photoelectric encoder is connected with a moment motor which is fixed on the upper part of the elevating cylinder via an elastic coupling, and the moment motor is connected with a tooth disk spindle via a universal spindle coupling. The tooth disk spindle passes through the static tooth disk and is fixedly connected with a movable tooth disk which is above the static tooth disk. The angle measurement repeatability standard deviation of the dividing table is 0.004'-0.002', and the zero division limit difference after compensation is +/-0.03', so the ultrahigh-precision measurement is realized.
Description
Technical field
The utility model belongs to geometry test measurement technology and Instrument technology field, is specifically related to a kind of superhigh precision robotization multiteeth indexing table.
Background technology
Multiteeth indexing table is comprised of the centripetal end-toothed discs in the identical plane of parameter such as a pair of diameter, the number of teeth, profile of tooth and elevating and locking mechanism.After two fluted discs are intermeshing, because the average effect of multiple tooth engagement can improve the calibration accuracy.Multiteeth indexing table be metrology and measurement and finishing commonly used decide angle circular division equipment, multiple tooth index technology expanded application in multiple special test equipment.
First part of patent of multiteeth indexing table obtained in nineteen sixty by U.S. AAGaGe company, before and after 1984, and the domestic and international error of division of multiteeth indexing table error ± 0.1 that all reached capacity ".Afterwards, the raising of accuracy stagnation, so far, the highest level of home and abroad multiteeth indexing table still is calibration limiting error ± 0.1 ", this is owing to will further improve the calibration accuracy, is to be difficult to realize by the mechanical technology method.
In the multiteeth indexing table course of work; realize " drop out of gear ", " transposition ", " engagement " and four elemental motions such as " adding engagement force "; Method Of Accomplishment has " hand " and " self-action " two kinds; " putting in place " of hand transposition is by visual; scale aligns finish careless slightly, can cause " beating tooth ", damages multiteeth indexing table; and the automatic operation mode: can accurately rotate in place, and take safety precautions.And for some specific demand, such as the inertia device test table, when adopting the fluted disc pair as indexing component, for guaranteeing normally carrying out of inertia device test, the essential automatically working mode that adopts.And for example adopt rocket or the inertial navigation car of inertial technology automatically north seeking, when adopting " Multiple station method " to improve to seek northern accuracy, multiteeth indexing table is transposition equipment accurately, but must adopt the automatically working mode.Simultaneously, in order to prevent that air-flow from causing the rising space of checkout equipment photoelectric auto-collimator, need add organic cloche, therefore multiteeth indexing table is necessary for the automatic operation mode, the automatic operation mode can also avoid operator's body temperature owing to manually reaching multiteeth indexing table, destroy the equalized temperature of multiteeth indexing table, thereby cause measuring error.
Summary of the invention
The purpose of this utility model is to provide a kind of multiteeth indexing table of superhigh precision robotization, can improve the calibration accuracy, makes zero limiting error that plays the error of division by ± 0.1 " be decreased to ± 0.03 ".
The technical solution of the utility model is as follows: a kind of superhigh precision robotization multiteeth indexing table, this circular dividing table comprises active toothed disk, fixed tooth disk, housing pedestal and stepper motor, wherein, housing pedestal lower end is fixedly connected with stepper motor, and housing pedestal upper end is fixedly connected with fixed tooth disk; Be provided with coaxial lifting tube in the housing base interior, be fixed with 26 photoelectric encoders in the bottom of lifting tube, and the leading screw that is fixed on axle center, 26 photoelectric encoder lower ends is installed in the place, axle center of stepper motor, and when stepper motor was rotated, leading screw drove lifting tube and does elevating movement; The upper end of 26 photoelectric encoders is connected with the torque motor that is fixed on lifting tube upper end by spring coupling, and torque motor is connected with the fluted disc axle by universal coupling, and the fluted disc axle is passed fixed tooth disk and is fixedly connected with active toothed disk above the fixed tooth disk.
Described lifting tube is provided with two the upper magnet and the lower magnets that are parallel to each other, and near housing pedestal correspondence position, be provided with two upper Hall switch that are parallel to each other and lower Hall switch, when active toothed disk and fixed tooth disk are meshed fully, lower magnet and lower Hall switch trigger, when active toothed disk and the complete drop out of gear of fixed tooth disk, upper magnet and upper Hall switch trigger.
Be fixed with balancing weight on the fluted disc axle of described fixed tooth disk below, and between the upper surface of the lower surface of balancing weight and lifting tube, thrust bearing be installed.
Along even circumferential several line slideways are installed on the cylindrical sidewall of described lifting tube, and the slide block of line slideway and housing pedestal are fixed, lifting tube can be moved up and down on the housing pedestal along line slideway.
Along even circumferential 3 line slideways are installed on the cylindrical sidewall of described lifting tube, and the slide block of line slideway and housing pedestal are fixed, lifting tube can be moved up and down on the housing pedestal along line slideway.
Described housing pedestal is the cylindrical structure that sidewall has some openings.
Remarkable result of the present utility model is: a kind of superhigh precision multiteeth indexing table described in the utility model, and the angle measurement repeatability standard deviation reaches 0.004 " 0.002 ", and zero plays that the calibration limit is poor to be reached after the compensation ± and 0.03 ", can realize that superhigh precision measures.
Description of drawings
Fig. 1 is a kind of superhigh precision robotization multiteeth indexing table structural representation described in the utility model;
Among the figure: 1, active toothed disk; 2, fixed tooth disk; 3, fluted disc axle; 4, universal coupling; 5, thrust bearing; 6, housing pedestal; 7, torque motor; 8, line slideway; 9, spring coupling; 10, lifting tube; 11, leading screw; 12, stepper motor; 13,26 photoelectric encoders; 14, lower magnet; 15, lower Hall switch; 16, upper magnet; 17, upper Hall switch; 18, balancing weight.
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail.
As shown in Figure 1, a kind of superhigh precision robotization multiteeth indexing table, comprise active toothed disk 1, fixed tooth disk 2, housing pedestal 6 and stepper motor 12, wherein, housing pedestal 6 lower ends that sidewall has the cylindrical tube shape of some openings are fixedly connected with stepper motor 12, be provided with the lifting tube 10 coaxial with housing pedestal 6 in housing pedestal 6 inside, and along even circumferential several are installed on the cylindrical sidewall of lifting tube 10, the line slideway 8 of three vertical directions for example, and the slide block of line slideway 8 and housing pedestal 6 are fixed, lifting tube 10 can be moved up and down at housing pedestal 6 along line slideway 8; The axle place of stepper motor 12 is equipped with leading screw 11, and can drive leading screw 11 and do elevating movement, leading screw 11 upper ends are fixedly connected with 26 photoelectric encoders 13 that are fixed on lifting tube 10 inner bottom, the upper end of 26 photoelectric encoders 13 is connected by the axle of spring coupling 9 with the torque motor 7 that is fixed on lifting tube 10 upper ends, the axle of torque motor 7 is connected with fluted disc axle 3 by universal coupling 4, fluted disc axle 3 is passed the fixed tooth disk 2 that is fixed on housing pedestal 6 upper ends, be fixedly connected with the active toothed disk 1 that is positioned at fixed tooth disk 2 tops, wherein, fluted disc axle 3 below fixed tooth disk 2 is fixed with balancing weight 18, and between the upper surface of the lower surface of balancing weight 18 and lifting tube 10 thrust bearing 5 is installed; Two positions is parallel about in the of 10 that magnet 16 and lower magnet 14 are installed at lifting tube, and near parallel being equipped with housing pedestal 6 correspondence positions Hall switch 17 and lower Hall switch 15, when active toothed disk 1 and fixed tooth disk 2 are meshed fully, lower magnet 14 triggers with lower Hall switch 15, when active toothed disk 1 and fixed tooth disk 2 complete drop out of gear, upper magnet 16 triggers with upper Hall switch 15.
The specific works engineering of a kind of superhigh precision robotization multiteeth indexing table described in the utility model is: during stepper motor 12 forward rotation, drive lifting tube 10 by leading screw 11 and do rising movement, when lifting tube 10 risings make upper magnet 16 trigger with upper Hall switch 17, active toothed disk 1 and fixed tooth disk 2 are thrown off fully, and rising movement stops; When stepper motor 12 backward rotation, do the landing motion by leading screw 11 drive lifting tubes 10, when lifting tube 10 was down to lower magnet 14 with lower Hall switch 15 triggering, active toothed disk 1 meshed fully with fixed tooth disk 2, and stepper motor 12 motions stop and cutting off the power supply; Industrial computer sends active toothed disk 1 position control parameter by the RS232 interface to direct current torque motor 7, the angle position information of 26 photoelectric encoder 13 Real-time Feedback active toothed disks 1, and drive torque motor 7 rotates to assigned address tooth top and teeth groove Accurate align when guaranteeing active toothed disk 1 with fixed tooth disk 2 engagement; Balancing weight 18 lower surfaces that are fixedly mounted on the fluted disc axle 3 are precise finiss faces, when upgrading cylinder 10 descends, when active toothed disk 1 meshed with fixed tooth disk 2, the steel ball of the lower surface of balancing weight 18 and thrust bearing 5 was thrown off, and the weight of balancing weight 18 is active toothed disk 1 added engagement force.
Claims (6)
1. superhigh precision robotization multiteeth indexing table, it is characterized in that: this circular dividing table comprises active toothed disk (1), fixed tooth disk (2), housing pedestal (6) and stepper motor (12), wherein, housing pedestal (6) lower end is fixedly connected with stepper motor (12), and housing pedestal (6) upper end is fixedly connected with fixed tooth disk (2); Be provided with coaxial lifting tube (10) in housing pedestal (6) inside, be fixed with 26 photoelectric encoders (13) in the bottom of lifting tube (10), and the leading screw (11) that is fixed on 26 photoelectric encoders (13) axle center, lower end is installed in the place, axle center of stepper motor (12), when stepper motor (12) was rotated, leading screw (11) drove lifting tube (10) and does elevating movement; The upper end of 26 photoelectric encoders (13) is connected with the torque motor (7) that is fixed on lifting tube (10) upper end by spring coupling (9), and torque motor (7) is connected with fluted disc axle (3) by universal coupling (4), and fluted disc axle (3) is passed fixed tooth disk (2) and is fixedly connected with the active toothed disk (1) of fixed tooth disk (2) top.
2. a kind of superhigh precision robotization multiteeth indexing table according to claim 1, it is characterized in that: described lifting tube (10) is provided with two upper magnet (16) that are parallel to each other and lower magnet (14), and near housing pedestal (6) correspondence position, be provided with two upper Hall switch (17) that are parallel to each other and lower Hall switch (15), when making active toothed disk (1) and fixed tooth disk (2) when meshing fully, lower magnet (14) triggers with lower Hall switch (15), when active toothed disk (1) and the complete drop out of gear of fixed tooth disk (2), upper magnet (16) triggers with upper Hall switch (15).
3. a kind of superhigh precision robotization multiteeth indexing table according to claim 1, it is characterized in that: be fixed with balancing weight (18) on the fluted disc axle (3) of described fixed tooth disk (2) below, and between the upper surface of the lower surface of balancing weight (18) and lifting tube (10), thrust bearing (5) be installed.
4. a kind of superhigh precision robotization multiteeth indexing table according to claim 1, it is characterized in that: along even circumferential several line slideways (8) are installed on the cylindrical sidewall of described lifting tube (10), and the slide block of line slideway (8) and housing pedestal (6) are fixed, lifting tube (10) can be moved up and down on housing pedestal (6) along line slideway (8).
5. a kind of superhigh precision robotization multiteeth indexing table according to claim 4, it is characterized in that: along even circumferential 3 line slideways (8) are installed on the cylindrical sidewall of described lifting tube (10), and the slide block of line slideway (8) and housing pedestal (6) are fixed, lifting tube (10) can be moved up and down at housing pedestal (6) along line slideway (8).
6. described any one superhigh precision robotization multiteeth indexing table according to claim 1 ~ 5, it is characterized in that: described housing pedestal (6) has the cylindrical structure of some openings for sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486252 CN202814361U (en) | 2012-09-21 | 2012-09-21 | Ultrahigh-precision automatic multi-tooth dividing table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486252 CN202814361U (en) | 2012-09-21 | 2012-09-21 | Ultrahigh-precision automatic multi-tooth dividing table |
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| Publication Number | Publication Date |
|---|---|
| CN202814361U true CN202814361U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220486252 Expired - Lifetime CN202814361U (en) | 2012-09-21 | 2012-09-21 | Ultrahigh-precision automatic multi-tooth dividing table |
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| Country | Link |
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| CN (1) | CN202814361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673930A (en) * | 2012-09-21 | 2014-03-26 | 北京航天计量测试技术研究所 | Ultra-high-precision automated multi-tooth indexing table |
-
2012
- 2012-09-21 CN CN 201220486252 patent/CN202814361U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673930A (en) * | 2012-09-21 | 2014-03-26 | 北京航天计量测试技术研究所 | Ultra-high-precision automated multi-tooth indexing table |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yonggang Inventor after: Shang Qiufang Inventor after: Wang Zhen Inventor after: Zhang Zhongwu Inventor after: Sun Fangjin Inventor before: Li Yonggang Inventor before: Shang Qiufang Inventor before: Wang Zhen Inventor before: Zhang Zhongwu Inventor before: Sun Fangjin |