CN104864812A - Rotary workbench - Google Patents
Rotary workbench Download PDFInfo
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- CN104864812A CN104864812A CN201410057869.XA CN201410057869A CN104864812A CN 104864812 A CN104864812 A CN 104864812A CN 201410057869 A CN201410057869 A CN 201410057869A CN 104864812 A CN104864812 A CN 104864812A
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- gear
- conical gear
- pedestal
- adjustable
- axle
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention belongs to a geometrical quantity metering technology, concretely discloses a rotary workbench. The rotary workbench comprises a table-board, a shaft, a transmission mechanism and pedestals, and the pedestals comprise an adjustable pedestal and a fixed pedestal. The adjustable pedestal is placed on the fixed pedestal, a plurality of supporting beads are arranged between the adjustable pedestal and the fixed pedestal, wherein one supporting bead is fixedly arranged between the adjustable pedestal and the fixed pedestal, and the upper and lower positions of the other supporting beads are adjusted separately by a leveling mechanism. A measured gauge block is placed on the table-board, and the shaft, a bearing and a bearing pressure plate form a shaft system. The bottom support of the rotary workbench is composed of the adjustable pedestal and the fixed pedestal, and by the design of the supporting beads and the leveling mechanism for adjusting the supporting beads, the planar fine tuning of the adjustable part on the fixed pedestal is realized, thereby realizing the fine tuning of the workbench, and guaranteeing the constant temperature measurement accuracy of a plurality of gauge blocks arranged in a calibrating device simultaneously. Relative to the prior art, the artificial disturbance brought to a measurement environment due to opening and closing a door to place the gauge blocks is reduced, and the rotary workbench greatly helps improve the measurement efficiency and measurement stability.
Description
Technical field
The invention belongs to geometric sense measurement technology, be specifically related to the rotary table in a kind of first-class gauge block measurement device.
Background technology
Gauge block is high-precision measurement instrument in length metering, plays an important role in the transmission of quantity value of Length Quantity.The highest ranking of gauge block is first-class, and its uncertainty of measurement is U=(0.02+0.2L) μm, (k=2.58).The Center Length deviation of current first-class gauge block adopts laser interference principle directly to measure.
First-class gauge block measurement device is exactly a kind of like this high precision instrument measuring first-class Gauge Block Length, and the optical system that the laser primarily of two-way different wave length forms, mechanical realization, interference fringe acquisition and processing system, environment measurement system four part form.Tested gauge block lapping-in, on optical flat workplace, is positioned on worktable, and when irradiating with laser, can see two groups of interference fringes in interferometer visual field, wherein one group results from gauge block working surface, and another group results from the optical flat workplace of gauge block surrounding.Because the light path projecting the light on optical flat is greater than the light path projected on gauge block, and the length L of gauge block to be measured is corresponding with the half of the optical path difference of two parts light.
L=(N+ε)λ/2+C
In formula: L---gauge block measured length;
N---interference fringe integral part;
ε---interference fringe fraction part;
λ---optical maser wavelength;
C---correction sum.
As long as obtain the integer of interference fringe, decimal, accurately laser wave long value and correction, just accurately Gauge Block Length L can be calculated.
Should reduce the impact of environment to improve accuracy of measurement, especially the change of temperature is very large on the impact of gauge block, and gauge block temperature and instrument temperature should be made as far as possible to be consistent as far as possible, and close to the standard temperature required by vertification regulation 20.0 DEG C.During actual test, being positioned on the stationary work-table of calibrating installation inside by the gauge block of lapping-in on optical flat, visits in pass, the constant temperature long enough time, and the data read just can as measurement result.After having surveyed, a taking-up gauge block need be opened, put into next tested gauge block, carry out constant temperature.
Use stationary work-table need open instruction case door continually, be unfavorable for the stable of temperature, and carry out constant temperature one by one, more consuming time, work efficiency is lower.
Summary of the invention
The object of the present invention is to provide a kind of rotary table that can ensure simultaneously high precision constant temperature, the measurement of multiple survey mass, its can 360 ° rotate freely, decrease because open and close door places the Human disturbance that gauge block brings measurement environment.
Technical scheme of the present invention is as follows:
A kind of rotary table, it comprises table top, the axle be connected with table top, is located at gear train below table top and base, described base comprises adjustable base and firm banking, adjustable base is placed on firm banking, be provided with some decorative pearls on top of an official cap between the two, one of them decorative pearl on top of an official cap is fixedly mounted between adjustable base and firm banking, and all the other decorative pearls on top of an official cap regulate upper-lower position respectively by levelling gear; Described table top places tested gauge block; Described axle drives table top to rotate, and axle lower end is provided with bearing, and bearing is compressed by bearing plate, and bearing plate is fixedly connected with the adjustable base below it simultaneously; Described gear train is arranged on the below of table top, is connected with axle.
In above-mentioned rotary table: described gear train is worm and gear, and worm gear is connected by jackscrew and axle.
In above-mentioned rotary table: described levelling gear comprises framework, conical gear axis body, push rod and driving conical gear, conical gear axis body is vertically arranged on framework center, push rod is installed by threaded coaxial in described conical gear axis body inside, push rod top contacts with the described decorative pearl on top of an official cap, described driving conical gear level is arranged on the sidepiece of framework, and drives the gears meshing of conical gear and conical gear axis body.
In above-mentioned rotary table: described levelling gear also comprises spacing pressing plate, and it is sleeved on push rod, and be arranged on the upper surface of framework.
Remarkable result of the present invention is:
The bottom support bracket of rotary table forms by being in harmonious proportion fixing two parts base, by the design decorative pearl on top of an official cap and the levelling gear regulating the decorative pearl on top of an official cap, adjustable part is made to achieve the plane fine setting on firm banking, thus realize the fine setting of table plane, ensure that volume block is placed in the degree of accuracy of calibrating installation constant temperature, measurement simultaneously.Decrease because open and close door places the artificial perturbation that brings measurement environment of gauge block relative to prior art, efficiency is measured to raising and Measurement sensibility very helpful.
Further, the gear train of rotary table adopts the mode of Worm Wheel System, reliably realizes the spinfunction of worktable.
Simultaneously by designing the independent axes system be made up of axle, bearing, bearing plate, 360 ° that achieve work top steadily rotate.Table top is installed polylith optical flat, and tested gauge block is arranged on optical flat, can by polylith, the survey mass be positioned on optical flat is positioned on table surface simultaneously during measurement, and then carry out constant temperature, measurement, process is reliably accurate.
Accompanying drawing explanation
Fig. 1 is rotary table schematic diagram;
Fig. 2 is levelling gear schematic diagram;
In figure: 1. tested gauge block; 2. optical flat; 3. axle; 4. bearing; 5. levelling gear; 6. table top; 7. gear train; 8. bearing plate; 9. adjustable base; 10. firm banking; 11. push rods; 12. spacing pressing plates; 13. frameworks; 14. conical gear axis bodies; 15. drive conical gear.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the table top 6 of worktable is disc, and in the present embodiment, the material of table top 6 adopts 40Cr, and diameter is 200mm, thick 5mm, evenly can place the optical flat 2 of six Φ 60, be placed on optical flat 6 by tested gauge block 1 at the circumferencial direction of table top 6.Multiple survey mass can disposablely be placed on the optical flat on table surface.Realize multiple tested gauge block 1 one-shot measurement.
Above-mentioned table top 6 is tightened together with the axle 3 of below by screw, table top 6 is rotated with axle 3.Axle 3 is driven by the bearing 4 that axle 3 lower end is installed and rotates, and compresses bearing 4 by bearing plate 8, and above-mentioned bearing plate 8 is fixedly connected with compression with the adjustable base 9 of below by recycling screw.In the present embodiment, described bearing 4 model is 6206, and internal diameter is 30mm, by four M4 deeply for the screw of 12mm is distributed in bearing plate 8, is compressed by above-mentioned bearing 4, and is fixedly connected with adjustable base 9 by bearing plate 8.
Gear train 7 is arranged on the below of table top 6, is connected with axle 3.In the present embodiment, gear train 7 is worm and gear, and connected mode is conventional connection mode, and be connected by jackscrew and axle 3 by worm gear, modulus is 1.25, reference diameter of worm d
1for 20mm, diametral quotient is 16, tooth number Z
1be 15, reference circle of wormwheel diameter d
2for 75mm, tooth number Z
2be 60, centre distance a be 47.5mm, ratio of gear is 4.Worm screw rotates handwheel outside by gauge block testing person, and handwheel drives crank connecting link and worm screw to rotate, thus the axle system rotation driving worm gear and coordinate with it.
Adjustable base 9 is placed on firm banking 10, is provided with the decorative pearl on top of an official cap, supports adjustable base by the decorative pearl on top of an official cap between the lower surface and the upper surface of firm banking 10 of adjustable base 9.In the present embodiment, the decorative pearl on top of an official cap has three, and one of them decorative pearl on top of an official cap fixedly mounts, and two other decorative pearl on top of an official cap regulates upper-lower height by levelling gear 5.
As shown in Figure 2, levelling gear 5 comprises framework 13, conical gear axis body 14, push rod 11, drives conical gear 15 and spacing pressing plate 12.The upper and lower frame center of framework 13 and Right Border there is axis hole, is respectively used to conical gear axis body 14 is installed and drives conical gear 15.For the ease of installing, framework 13 centrally can be split as two parts of left and right symmetry.Conical gear axis body 14 is vertically arranged on framework 13 center, the upper surface flush of conical gear axis body 14 upper surface and framework 13, and the lower surface of framework 13 is stretched out in conical gear axis body 14 lower end.Conical gear axis body 14 carries out spacing by the top shaft shoulder and San Chi bottom surface, bottom to self, above-mentioned conical gear axis body 14 inside is processed with screw thread, push rod 11 external process screw thread, push rod 11 is made to be arranged on conical gear axis body 14 by threaded coaxial inner, and the upper surface of conical gear axis body 14 is stretched out on push rod 11 top, and carrying out limit mounting by the spacing pressing plate 12 being sleeved on push rod 11, spacing pressing plate 12 rotates with conical gear axis body 14 for limiting push rod 11, makes it can only do, move.The decorative pearl on top of an official cap is arranged on push rod 11 top.
Conical gear 15 level is driven to be arranged on the sidepiece of framework 13, and the gears meshing of itself and conical gear axis body 14, conical gear 15 is driven to rotate during work, thus conical gear axis body 14 is rotated, push rod 11 rotates thereupon, and push rod 11, due to the restriction of spacing pressing plate 12, can only correspondingly do upper and lower motion, thus the decorative pearl on top of an official cap of push rod 11 upper end is conditioned mechanism and regulates, thus regulates the levelness of adjustable base 9.
Claims (4)
1. a rotary table, it comprises table top (6), the axle (3) be connected with table top (6), is located at gear train (7) below table top and base, it is characterized in that: described base comprises adjustable base (9) and firm banking (10), adjustable base (9) is placed on firm banking (10), be provided with some decorative pearls on top of an official cap between the two, one of them decorative pearl on top of an official cap is fixedly mounted between adjustable base (9) and firm banking (10), and all the other decorative pearls on top of an official cap regulate upper-lower position respectively by levelling gear (5); Described table top (6) is upper places tested gauge block (1); Described axle (3) drives table top (6) to rotate, and axle (3) lower end is provided with bearing (4), and bearing (4) is compressed by bearing plate (8), and bearing plate (8) is fixedly connected with the adjustable base (9) below it simultaneously; Described gear train (7) is arranged on the below of table top (6), is connected with axle (3).
2. rotary table as claimed in claim 1, it is characterized in that: described gear train (7) is worm and gear, worm gear is connected by jackscrew and axle (3).
3. rotary table as claimed in claim 1, it is characterized in that: described levelling gear (5) comprises framework (13), conical gear axis body (14), push rod (11) and driving conical gear (15), conical gear axis body (14) is vertically arranged on framework (13) center, push rod (11) is installed by threaded coaxial in described conical gear axis body (14) inside, push rod (11) top contacts with the described decorative pearl on top of an official cap, described driving conical gear (15) level is arranged on the sidepiece of framework (13), and drive the gears meshing of conical gear (15) and conical gear axis body (14).
4. rotary table as claimed in claim 3, is characterized in that: described levelling gear (5) also comprises spacing pressing plate (12), and it is sleeved on push rod (11), and is arranged on the upper surface of framework (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057869.XA CN104864812A (en) | 2014-02-20 | 2014-02-20 | Rotary workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057869.XA CN104864812A (en) | 2014-02-20 | 2014-02-20 | Rotary workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104864812A true CN104864812A (en) | 2015-08-26 |
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ID=53910820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410057869.XA Pending CN104864812A (en) | 2014-02-20 | 2014-02-20 | Rotary workbench |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767645A (en) * | 2017-03-24 | 2017-05-31 | 南京理工大学 | Ball screw assembly, leading screw raceway profile measurement device |
| CN107421458A (en) * | 2017-08-07 | 2017-12-01 | 浙江硕和机器人科技有限公司 | A kind of worm gear endoporus and shaft shoulder measurement apparatus |
| CN115446660A (en) * | 2022-09-06 | 2022-12-09 | 浙江畅尔智能装备股份有限公司 | Laser indexing detection device and detection method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030348A (en) * | 1997-01-27 | 2000-02-29 | Imarx Pharmaceutical Corp. | Leveling device especially adapted for use in apparatus for performing light beam guided biopsies and the like |
| CN201010995Y (en) * | 2007-02-16 | 2008-01-23 | 溧阳二十八所系统装备有限公司 | Support adjusting system of expandable and movable square compartment |
| CN101387596A (en) * | 2007-09-10 | 2009-03-18 | 中茂电子(深圳)有限公司 | Optical mechanism horizontal adjustment method and apparatus thereof |
| CN102501230A (en) * | 2011-10-28 | 2012-06-20 | 中国工程物理研究院应用电子学研究所 | Multi-degree-of-freedom vibration isolation bearing platform |
| CN103056716A (en) * | 2012-12-25 | 2013-04-24 | 上海亚泽金属屋面系统股份有限公司 | Site processing method of composite metal plate |
| CN203732035U (en) * | 2014-02-20 | 2014-07-23 | 北京航天计量测试技术研究所 | Rotary worktable |
-
2014
- 2014-02-20 CN CN201410057869.XA patent/CN104864812A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030348A (en) * | 1997-01-27 | 2000-02-29 | Imarx Pharmaceutical Corp. | Leveling device especially adapted for use in apparatus for performing light beam guided biopsies and the like |
| CN201010995Y (en) * | 2007-02-16 | 2008-01-23 | 溧阳二十八所系统装备有限公司 | Support adjusting system of expandable and movable square compartment |
| CN101387596A (en) * | 2007-09-10 | 2009-03-18 | 中茂电子(深圳)有限公司 | Optical mechanism horizontal adjustment method and apparatus thereof |
| CN102501230A (en) * | 2011-10-28 | 2012-06-20 | 中国工程物理研究院应用电子学研究所 | Multi-degree-of-freedom vibration isolation bearing platform |
| CN103056716A (en) * | 2012-12-25 | 2013-04-24 | 上海亚泽金属屋面系统股份有限公司 | Site processing method of composite metal plate |
| CN203732035U (en) * | 2014-02-20 | 2014-07-23 | 北京航天计量测试技术研究所 | Rotary worktable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767645A (en) * | 2017-03-24 | 2017-05-31 | 南京理工大学 | Ball screw assembly, leading screw raceway profile measurement device |
| CN107421458A (en) * | 2017-08-07 | 2017-12-01 | 浙江硕和机器人科技有限公司 | A kind of worm gear endoporus and shaft shoulder measurement apparatus |
| CN107421458B (en) * | 2017-08-07 | 2023-05-26 | 浙江硕和机器人科技有限公司 | Worm wheel hole and shaft shoulder measuring device |
| CN115446660A (en) * | 2022-09-06 | 2022-12-09 | 浙江畅尔智能装备股份有限公司 | Laser indexing detection device and detection method thereof |
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Application publication date: 20150826 |