CN106563975A - High-locating-precision measuring device of rotary workbench - Google Patents
High-locating-precision measuring device of rotary workbench Download PDFInfo
- Publication number
- CN106563975A CN106563975A CN201610544274.6A CN201610544274A CN106563975A CN 106563975 A CN106563975 A CN 106563975A CN 201610544274 A CN201610544274 A CN 201610544274A CN 106563975 A CN106563975 A CN 106563975A
- Authority
- CN
- China
- Prior art keywords
- mounting seat
- read head
- rotary table
- circular gratings
- bearing
- 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.)
- Granted
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2428—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring existing positions of tools or workpieces
Abstract
The invention discloses a high-locating-precision measuring device of a rotary workbench. The high-locating-precision measuring device of the rotary workbench comprises a rotary workbench installation base and further comprises a circular grating installation seat, a circular grating, a reading head installation seat, a reading head, a bearing group, a first gland, a second gland, spacing sleeves and a flexible coupler. The reading head installation seat is fixed to the rotary workbench installation base. The circular grating installation seat is rotationally installed in the reading head installation seat. The top of the circular grating installation seat extends outwards in the radial direction to form a first clamp ring. The top of the reading head installation seat extends inwards in the radial direction to form a second clamp ring corresponding to the first clamp ring. The reading head is installed on the top of the reading head installation seat. The circular grating is installed on the top of the circular grating installation seat and is opposite to the reading head. The bearing group is installed between the reading head installation seat and the circular grating installation seat. The high-locating-precision measuring device of the rotary workbench solves the problem that the rotation locating precision is low because of axial relative movement between the circular grating and the reading head and greatly improves the locating precision of operation of the rotary workbench.
Description
Technical field
The present invention relates to a kind of high position precision measurement apparatus of rotary table, belong to the measurement part of rotary table
Technical field.
Background technology
The NC rotary table of machine trouble industry typically adopts bearing support structure or static pressure oil float structure.Static pressure oil float
The rotary table of structure have the advantages that load-carrying big, low cost, rigidity it is good, without abrasion, but which has the disadvantage：Workpiece is rotated in quiet
When pushing back the side of revolving worktable table top, the load of weighting can cause the inclination of table top, and table surface is the light with Circular gratings
Circle or read head connection, the inclination of table surface make relative displacement is produced between Circular gratings and read head, make rotary table
Positioning produce error, have impact on the positioning precision of static pressure rotary worktable.
The content of the invention
The present invention is present to overcome the shortcomings of prior art, there is provided a kind of workpiece that can solve deviates returning for rotary table
Turn the high position precision measurement apparatus of the rotary table at center.
The invention is characterized in that technical scheme below is achieved：
A kind of high position precision measurement apparatus of rotary table, including rotary table mounting seat, also including circle light
Grid mounting seat, Circular gratings, read head mounting seat, read head, bearing group, the first gland, the second gland, spacer and flexible coupling
Device, the read head mounting seat are fixed in rotary table mounting seat, and the Circular gratings mounting seat is rotatably installed in reading
In head mounting seat, extend radially outwardly to form the first snap ring at the top of which, extend radially inwardly at the top of the read head mounting seat
Second snap ring relative with the first snap ring is formed, the read head is arranged on the top of read head mounting seat, the Circular gratings peace
It is mounted in the top of Circular gratings mounting seat and faces read head, the bearing group is arranged on read head mounting seat and Circular gratings are installed
Between seat, the bottom of the first snap ring and the bottom of the second snap ring at the top of the bearing of its top, are pressed on, the spacer is installed
Between two adjacent bearings of bearing group, first gland is fixed on the bottom of read head mounting seat and compresses bearing group
The bottom of the bearing of bottom, second gland are fixed on the bottom of Circular gratings mounting seat and are pressed on the bottom of bearing group
Bearing bottom, the flexible clutch be arranged on Circular gratings mounting seat top axle center and be rotatably installed in revolution work
The rotary table made in platform mounting seat is connected.
Preferably, contiguous block, the bottom of the flexible clutch are provided with the axle center at the top of the Circular gratings mounting seat
Portion is coaxially connected with contiguous block, is connected with the axle center of the table top cover plate of revolution work platformses by connecting shaft at the top of which.
Preferably, the spacer includes that outer separator and inner spacing collar, the outer separator and inner spacing collar are arranged on from outside to inside
Between read head mounting seat and Circular gratings mounting seat.
Compared with prior art, the invention has the beneficial effects as follows：Read head mounting seat is fixed on revolution work by the present invention
Make in platform mounting seat, Circular gratings mounting seat is rotatably installed in read head mounting seat, read head is installed using bearing group
Carry out with Circular gratings mounting seat axially and radially spacing, make only relative rotary motion between the two, using flexible clutch
Make Circular gratings mounting seat be connected with rotary table, make rotary table in the case where work deviates table top center, work
Part rotational energy is synchronously delivered in Circular gratings mounting seat, makes relative reading between read head and Circular gratings not inclined by rotary table
Tiltedly affect, solve the problems, such as that Circular gratings and the moving axially relative rotational positioning precision for causing of read head be not high, greatly improve
The positioning precision of rotary table operation, it is ensured that the accurate use of rotary table.
Description of the drawings
Fig. 1 is the overall structure diagram of the high position precision measurement apparatus of the rotary table of the present invention；
Fig. 2 is the centre bit of the workpiece in rotary table of the high position precision measurement apparatus of the rotary table of the present invention
State diagram when putting；
The workpiece of the high position precision measurement apparatus of the rotary table of Fig. 3 present invention deviates the centre bit of rotary table
State diagram when putting.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in figure 1, the high position precision measurement apparatus of the rotary table of the present invention include that rotary table installs bottom
Seat 1, Circular gratings mounting seat 2, Circular gratings 3, read head mounting seat 4, read head 5, bearing group, the first gland 6, the second gland 7, every
Set and flexible clutch 8.
Rotary table mounting seat 1 is provided with hollow boss 9, and 10 turning set of rotary table is in the outside of boss 9
On.Two bearings 11,12 are provided between rotary table 10 and boss 9,13 and of outer separator is installed between two bearings 11,12
Inner spacing collar 14, is provided with support spacer, the top of the lateral wall of boss 9 between the bottom of bearing 12 and rotary table mounting seat 1
Tooth abdomen lock nut is provided between the top of portion and bearing 11.So, rotary table 10 is positioned in the axial direction.Return
Revolving worktable 10 is located at the center of the top of boss 9 and is provided with work-table surface cover 17, and the work-table surface cover 17 passes through
Screw 34 is fixed on rotary table 10.There is the protective cover 33 being fixed thereon by screw 32 on work-table surface cover 17.
Static pressure suspension face 18 is provided between the bottom of rotary table 10 and rotary table mounting seat 1, works as static pressure rotary worktable
When not rotating, rotary table 10 is directly born against in rotary table mounting seat 1, and static pressure suspension face 18 between the two does not have
Filling oil film；When static pressure rotary worktable rotates, static pressure suspension face 18 has pressure film filling, makes rotary table 10 micro-
Micro suspension is got up, not with 1 directly contact of rotary table mounting seat, frictional resistance pole when this turns round rotary table 10
It is little, with hydraulic principle is utilized, there is very big bearing capacity.
Read head mounting seat 4 is fixed on the inwall of boss 9 and by screw 19, makes read head mounting seat 4 with boss 9 not
Relative movement can occur.Circular gratings mounting seat 2 is vertically rotatably installed in read head mounting seat 4, and phase can occur between the two
To rotary motion.The top of Circular gratings mounting seat 2 extends radially outwardly to form the first snap ring 20, the top of read head mounting seat 4
Extend radially inwardly to be formed the second snap ring 21, the bottom of the first snap ring 20 and the second snap ring 21 bottom maintain an equal level.Read head 5 is fixed
At the top of read head mounting seat 4, Circular gratings 3 by screw 31 be arranged on Circular gratings mounting seat 2 top and with 5 phase of read head
It is right, facilitate read head 5 to read the calibration data on Circular gratings 3.In annular shape, which is coaxial with Circular gratings mounting seat 2 to Circular gratings 3
What the heart was fixed, when rotating, read head 5 reads relative skew to Circular gratings 3 would not occur.Bearing group is installed installed in read head
Between seat 4 and Circular gratings mounting seat 2, bearing group includes clutch shaft bearing 22 and second bearing 23, and the top of clutch shaft bearing 22 compresses
In the bottom of the first snap ring 20 and the bottom of the second snap ring 21.Spacer is arranged between clutch shaft bearing 22 and second bearing 23, its
Can be made up of outer separator 24 and inner spacing collar 25, outer separator 24 and inner spacing collar 25 be arranged on from outside to inside read head mounting seat 4 with
Between Circular gratings mounting seat 2.First gland 6 is fixed on the bottom of read head mounting seat 4 by screw 29 and compresses bearing group
The bottom of second bearing 23, the second gland 7 are fixed on the bottom of Circular gratings mounting seat 2 by screw 30 and are pressed on bearing group
The bottom of second bearing 23.As read head mounting seat 4 is integrally fixed in rotary table mounting seat 1, Circular gratings are installed
Seat 2 is then by the first gland 6, the second gland 7, second bearing 23, outer separator 24, inner spacing collar 25, clutch shaft bearing 22, the first snap ring 20
Carry out with the second snap ring 21 spacing, make between Circular gratings mounting seat 2 and read head mounting seat 4, axial direction, move radially,
Relative motion can only be rotated, this makes in read head mounting seat 4 read head 5 and is arranged on Circular gratings mounting seat 2
On Circular gratings 3 relative rotary motion can only occur, read head 5 will not shift with Circular gratings 3.The bottom of flexible clutch 8
Portion is coaxially mounted to the top of Circular gratings mounting seat 2, and connecting shaft 26, connecting plate 27 and work-table cover are passed sequentially through at the top of which
The center of plate 17 is fixedly connected, and rotary table 10 can drive Circular gratings mounting seat 2 in 4 turns of read head mounting seat when rotating
It is dynamic, make the workpiece synchronous axial system on Circular gratings 3 and the work-table surface cover 17 in Circular gratings mounting seat 2.
The bearing group of the present invention can adopt two bearings or multiple bearing arrangements, according to multiple bearings, then by upper end
Bearing at the top of be pressed on the bottom surface of the first snap ring and the bottom surface of the second snap ring, under the first gland and the second gland are pressed on most
The bottom of the bearing at end, is supported by spacer between two neighboring bearing.
Contiguous block 28, the bottom of the flexible clutch 8 are provided with the axle center at the top of the Circular gratings mounting seat 2 of the present invention
It is coaxially connected with contiguous block 28, it is connected with the axle center of work-table surface cover 17 by connecting shaft 26, connecting plate 27 at the top of which.
As shown in Fig. 2 when rotary table 10 is unloaded or contained workpiece center of gravity is pressed in the revolution of work-table surface cover 17
During center, the center of gravity of rotary table 10 on its centre of gyration, rotary table 10 and rotary table mounting seat 1
Between the uniform force everywhere of static pressure suspension face 18, oil film filling thickness is uniform, and rotary table 10 is installed with rotary table
The contact surface of base 1 is parallel, and now, the radial distance between read head 5 and Circular gratings 3 is constant, and axial distance is constant, makes to justify light
The data of grid 3 and the measurement of read head 5 are accurate, and positioning is also what is prepared.
As shown in figure 3, when rotary table 10 is loaded with, workpiece rotates and workpiece center of gravity is not in work-table surface cover 17
When at the centre of gyration, rotary table 10 then can be considered an entirety with workpiece, its deviation of gravity center centre of gyration, as workpiece weight
At which side, which side rotary table can deviate from the center of gravity of workpiece to the heart.State shown in Fig. 3 for workpiece center of gravity on the right, this
When, the gravity that the right of the centre of gyration is subject to is big compared with the left side, when static pressure suspension face 18 is filled rotary table 10 does not rotate when,
The pressure of the right oil film can be bigger than the pressure of the oil film on the left side, and rotary table 10 is to the micro inclination in the right, i.e. rotary table
It is lower than the left side on the right of 10 table top, and rotary table mounting seat 1 is integrally fixed on lathe, will not be subject to rotary table
Impact.Now, Circular gratings mounting seat 2 is completed by flexible clutch 8 with the synchronous rotary of rotary table 10, by
There is certain elasticity in flexible clutch 8, even if rotary table table top cover plate 17 there occurs inclination, flexible clutch 8 occurs
Certain deformation, also still can drive Circular gratings mounting seat 2 to rotate preparatively rotating with rotary table 10, and Circular gratings 3 are
In Circular gratings mounting seat 2, clutch shaft bearing 22 and second between Circular gratings mounting seat 2 and read head mounting seat 4, is subject to
Axially and radially spacing, the only relative rotary motion between the two of bearing 23, even if in 8 pressurized transmission situation of flexible clutch
Under, Circular gratings mounting seat 2 relative to read head mounting seat 4 concentricity, circle bounce and axial jump be limited to clutch shaft bearing
22 and second bearing 23 install within clearance and Circular gratings mounting seat 2, the precision prescribed of read head mounting seat 4, i.e. Circular gratings 3
Concentricity, circle bounce and axial jump relative to read head 5 is limited to the installation trip of clutch shaft bearing 22 and second bearing 23
Within gap and Circular gratings mounting seat 2, the precision prescribed of read head mounting seat 4, Circular gratings 3 and 5 energy normal work of read head are not received
The inclined impact of a small amount of of rotary table 10, it is ensured that the Position location accuracy of the operation of rotary table 10.
The preferred embodiments of the present invention are more than, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various changes and change.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (3)
1. the high position precision measurement apparatus of a kind of rotary table, including rotary table mounting seat, it is characterised in that also
Including Circular gratings mounting seat, Circular gratings, read head mounting seat, read head, bearing group, the first gland, the second gland, spacer and soft
Property shaft coupling, the read head mounting seat is fixed in rotary table mounting seat, and the Circular gratings mounting seat is rotated to be installed
In read head mounting seat, extend radially outwardly to form the first snap ring at the top of which, the top of the read head mounting seat radially to
Interior extension forms second snap ring relative with the first snap ring, and the read head is arranged on the top of read head mounting seat, the circle
Grating is arranged on the top of Circular gratings mounting seat and faces read head, and the bearing group is arranged on read head mounting seat and circle light
Between grid mounting seat, at the top of the bearing of its top, be pressed on the bottom of the first snap ring and the bottom of the second snap ring, it is described every
Between two adjacent bearings of bearing group, first gland is fixed on the bottom of read head mounting seat compression axis to set
The bottom of the bearing of the bottom of group is held, second gland is fixed on the bottom of Circular gratings mounting seat and is pressed on bearing group
The bottom of the bearing of bottom, the flexible clutch be arranged on Circular gratings mounting seat top axle center and be rotatably installed in
Rotary table in rotary table mounting seat is connected.
2. high position precision measurement apparatus of rotary table according to claim 1, it is characterised in that the Circular gratings
Contiguous block is provided with the axle center at the top of mounting seat, the bottom of the flexible clutch is coaxially connected with contiguous block, is led at the top of which
Cross connecting shaft to be connected with the axle center of the table top cover plate of revolution work platformses.
3. high position precision measurement apparatus of rotary table according to claim 1 and 2, it is characterised in that the spacer
Including outer separator and inner spacing collar, the outer separator and inner spacing collar are arranged on read head mounting seat and Circular gratings mounting seat from outside to inside
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544274.6A CN106563975B (en) | 2016-07-08 | 2016-07-08 | A kind of high position precision measuring device of rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544274.6A CN106563975B (en) | 2016-07-08 | 2016-07-08 | A kind of high position precision measuring device of rotary table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106563975A true CN106563975A (en) | 2017-04-19 |
| CN106563975B CN106563975B (en) | 2019-01-25 |
Family
ID=58532210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610544274.6A Active CN106563975B (en) | 2016-07-08 | 2016-07-08 | A kind of high position precision measuring device of rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106563975B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612411A (en) * | 2019-02-18 | 2019-04-12 | 重庆建设工业(集团)有限责任公司 | A kind of open type double-reading head Circular gratings system Fast Installation adjustment mechanism |
| CN115464424A (en) * | 2022-10-31 | 2022-12-13 | 沈阳马卡智工科技有限公司 | Five-axis machining center rotary worktable |
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| CH695260A5 (en) * | 2001-08-22 | 2006-02-28 | Studer Ag Fritz | Revolving finishing machine. |
| CN101081482A (en) * | 2007-06-29 | 2007-12-05 | 成都工具研究所 | Positioning accuracy quick measuring mechanism of numerically controlled revolving dial |
| TW201219149A (en) * | 2010-11-02 | 2012-05-16 | Weibo Prec Co Ltd | Rotary hydrostatic bearing working table |
| CN104741973A (en) * | 2015-04-15 | 2015-07-01 | 吉林大学珠海学院 | Grating ruler |
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| CN105215692A (en) * | 2015-11-09 | 2016-01-06 | 深圳市金汇丰精密机械有限公司 | One can bear eccentric load static pressure rotary worktable and method of controlling rotation thereof |
| CN206169773U (en) * | 2016-07-08 | 2017-05-17 | 环球工业机械（东莞）有限公司 | Rotary worktable's high positioning accuracy measuring device |
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2016
- 2016-07-08 CN CN201610544274.6A patent/CN106563975B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH695260A5 (en) * | 2001-08-22 | 2006-02-28 | Studer Ag Fritz | Revolving finishing machine. |
| CN101081482A (en) * | 2007-06-29 | 2007-12-05 | 成都工具研究所 | Positioning accuracy quick measuring mechanism of numerically controlled revolving dial |
| TW201219149A (en) * | 2010-11-02 | 2012-05-16 | Weibo Prec Co Ltd | Rotary hydrostatic bearing working table |
| CN104741973A (en) * | 2015-04-15 | 2015-07-01 | 吉林大学珠海学院 | Grating ruler |
| CN104999284A (en) * | 2015-08-21 | 2015-10-28 | 烟台三维机床制造有限公司 | Heavy load straight tooth transmission full-closed loop high precision rotating table |
| CN105215692A (en) * | 2015-11-09 | 2016-01-06 | 深圳市金汇丰精密机械有限公司 | One can bear eccentric load static pressure rotary worktable and method of controlling rotation thereof |
| CN206169773U (en) * | 2016-07-08 | 2017-05-17 | 环球工业机械（东莞）有限公司 | Rotary worktable's high positioning accuracy measuring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612411A (en) * | 2019-02-18 | 2019-04-12 | 重庆建设工业(集团)有限责任公司 | A kind of open type double-reading head Circular gratings system Fast Installation adjustment mechanism |
| CN115464424A (en) * | 2022-10-31 | 2022-12-13 | 沈阳马卡智工科技有限公司 | Five-axis machining center rotary worktable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106563975B (en) | 2019-01-25 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high positioning accuracy measuring device for rotary table Effective date of registration: 20201224 Granted publication date: 20190125 Pledgee: China Co. truction Bank Corp Dongguan branch Pledgor: Global industrial machinery (Dongguan) Co.,Ltd. Registration number: Y2020980009933 |
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