CN105855994A - Positioning method for machining machine tool - Google Patents
Positioning method for machining machine tool Download PDFInfo
- Publication number
- CN105855994A CN105855994A CN201610298237.1A CN201610298237A CN105855994A CN 105855994 A CN105855994 A CN 105855994A CN 201610298237 A CN201610298237 A CN 201610298237A CN 105855994 A CN105855994 A CN 105855994A
- Authority
- CN
- China
- Prior art keywords
- sphere
- ball
- ectosphere
- workpiece
- laser tracker
- 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.)
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Classifications
-
- 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
-
- 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
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The invention discloses a positioning method for a machining machine tool and belongs to the field of machine manufacturing. The outline of a workpiece is measured through a laser jumping instrument, and the workpiece is fitted into a designed coordinate system; and due to the fact that a laser tracker and the machine tool are used for simultaneously measuring the ball centers of small balls connected to the workpiece through a ball seat, the workpiece is transferred to a machine tool coordinate system from the designed coordinate system, and machining and positioning of the workpiece are completed.
Description
Technical field
The present invention relates to mechanical manufacturing field, specifically a kind of mechanical processing machine localization method.
Background technology
CNC milling machine is when being processed workpiece, it is often necessary to good datum plane, to realize accurate to workpiece
Location.But for complex outline, usually there will be and lack good machining benchmark plane, cause and cannot position or position error
Bigger；For large-size workpiece, for ensureing setting accuracy on work, need adjustment when carrying out longer to workpiece, so that processing
Benchmark reaches lathe requirement, and some workpiece relates to repeatedly process, and its positioning time will be significantly increased, and resetting error is also
To become big.
Summary of the invention it is an object of the invention to provide a kind of mechanical processing machine localization method, deposits solving prior art
Problem.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of mechanical processing machine localization method, it is characterised in that: use homocentric sphere device, laser tracker to measure, institute
Stating homocentric sphere device and include ball seat, the homocentric sphere being made up of ectosphere and interior ball, described outer bulb diameter is measured with laser tracker and is used
The small ball's diameter is identical, and ectosphere end face is set to plane, and ectosphere end face is provided with cavity in ectosphere, described cavity under upper successively
Be made up of upper coarse and lower fine conical cavity and hemispherical cavity, conical cavity, hemispherical cavity respectively with ectosphere concentrically axle, described ectosphere
Being arranged on ball seat and can rotate freely on ball seat and take out, described interior top dome face is set to plane, and interior ball is arranged on ectosphere
Hemispherical cavity in, and interior ball and the ectosphere centre of sphere altogether, interior ball can rotate freely in hemispherical cavity, center, interior top dome face be provided with
The central blind hole of point rod diameter matches in mechanical processing machine, bottom surface, central blind hole hole was centre of sphere plane, and method includes following
Step:
(1), by laser tracker, workpiece profile surface is carried out sampling site measurement, by data processing software, sampling site data are intended
Close, make workpiece enter and measure coordinate system；
(2), by the ball seat of some homocentric sphere devices it is welded on surface of the work, and takes off the homocentric sphere in each homocentric sphere device,
With laser tracker measurement bead replace, then by laser tracker measure bead sphere centre coordinate, and by sphere centre coordinate from
Measure coordinate system and be transformed into design coordinate system；
(3), bead on ball seat is taken off, change homocentric sphere, and workpiece is fixed on the processing platform of mechanical processing machine；
(4), in being inserted in homocentric sphere by mechanical processing machine point of rod in the central blind hole of ball, in utilization, a point rod is measured and is obtained
The sphere centre coordinate of homocentric sphere；
(5) sphere centre coordinate recorded according to step (2), step (4), is transformed into lathe coordinate system by workpiece from design coordinate system,
Realize the machine tooling to workpiece to position.
Described a kind of mechanical processing machine localization method, it is characterised in that: there is on described ball seat three-jaw structure, pass through
Three-jaw structure holds ectosphere or laser tracker measurement bead.
The invention provides a kind of lathe and survey coordinate homocentric sphere device, and on this basis propose a kind of machining
Lathe localization method.In the present invention, homocentric sphere device can assist lathe to be completed rapidly and accurately the survey of certain point in space
Amount, makes lathe location break away from the dependence of machining benchmark plane on workpiece, reaches clamping workpiece flexibly, quickly, and positioning precision is high,
The purpose of favorable repeatability.
The present invention's is profitable: for the large-size workpiece that profile is complicated, cannot provide good machining benchmark at it
During face, it is possible to survey some point coordinates by lathe and complete locating and machining；Locating and machining is placed less demanding for the requirement of workpiece,
Work is put has preferable motility.
Accompanying drawing explanation
Fig. 1 is homocentric sphere and ball seat axle survey view.
Fig. 2 is homocentric sphere and ball seat sectional view.
Fig. 3 is surface of the work measurement figure.
Fig. 4 is that laser tracker surveys centre of sphere figure.
Fig. 5 is that sphere centre coordinate figure surveyed by lathe.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of mechanical processing machine localization method, use homocentric sphere device, laser tracker 1 to carry out
Measuring, homocentric sphere device includes ball seat 2, the homocentric sphere being made up of ectosphere 3 and interior ball 4, and ectosphere 3 diameter is surveyed with laser tracker 1
Amount bead 5 diameter is identical, and ectosphere 3 end face is set to plane, and ectosphere 3 end face is provided with cavity in ectosphere, and cavity is under upper
Be made up of upper coarse and lower fine conical cavity 6 and hemispherical cavity successively, conical cavity 6, hemispherical cavity respectively with ectosphere 3 concentrically axle,
Ectosphere 3 is arranged on ball seat 2 and can rotate freely on ball seat 2 and take out, and interior ball 4 end face is set to plane, and interior ball 4 is arranged on
In the hemispherical cavity of ectosphere 3, and interior ball 4 is total to the centre of sphere with ectosphere 3, and interior ball 4 can rotate freely in hemispherical cavity, interior ball 4 end face
Center is provided with and the central blind hole 9 of point excellent 8 diameter matches in mechanical processing machine 7, and bottom surface, central blind hole 9 hole was that the centre of sphere is put down
Face, method comprises the following steps:
(1) as it is shown on figure 3, workpiece 10 contour surface is carried out sampling site measurement by laser tracker 1, processed soft by data
Part, to sampling site data matching, makes workpiece 10 enter and measures coordinate system；
(2), as shown in Figure 4, the ball seat 2 of some homocentric sphere devices is welded on workpiece 10 surface, and takes off each homocentric sphere dress
Homocentric sphere in putting, replaces with laser tracker 1 measurement bead 5, then measures bead 5 centre of sphere by laser tracker 1 and sits
Mark, and sphere centre coordinate is transformed into design coordinate system from measuring coordinate system；
(3), bead 5 on ball seat 2 is taken off, change homocentric sphere, and workpiece 10 is fixed on the processing platform of mechanical processing machine 7
On；
(4) as it is shown in figure 5, in mechanical processing machine 7 point of rod 8 is inserted in homocentric sphere in the central blind hole 9 of ball 4, utilize
In point rod 8 measure and obtain the sphere centre coordinate of homocentric sphere；
(5) sphere centre coordinate recorded according to step (2), step (4), is transformed into machine coordinates by workpiece 10 from design coordinate system
System, it is achieved the machine tooling to workpiece 10 positions.
There is on ball seat 2 three-jaw structure 11, hold ectosphere 3 or laser tracker 1 measurement bead by three-jaw structure 11
5。
Claims (2)
1. a mechanical processing machine localization method, it is characterised in that: use homocentric sphere device, laser tracker to measure,
Described homocentric sphere device includes that ball seat, the homocentric sphere being made up of ectosphere and interior ball, described outer bulb diameter are measured with laser tracker
Identical with the small ball's diameter, ectosphere end face is set to plane, and ectosphere end face is provided with cavity in ectosphere, and described cavity depends under upper
Secondary be made up of upper coarse and lower fine conical cavity and hemispherical cavity, conical cavity, hemispherical cavity respectively with ectosphere concentrically axle, described outside
Ball is arranged on ball seat and can rotate freely on ball seat and take out, and described interior top dome face is set to plane, outside interior ball is arranged on
In the hemispherical cavity of ball, and interior ball is total to the centre of sphere with ectosphere, and interior ball can rotate freely in hemispherical cavity, and center, interior top dome face is provided with
With the central blind hole of rod diameter matches in mechanical processing machine point, bottom surface, central blind hole hole was centre of sphere plane, method include with
Lower step:
(1), by laser tracker, workpiece profile surface is carried out sampling site measurement, by data processing software, sampling site data are intended
Close, make workpiece enter and measure coordinate system；
(2), by the ball seat of some homocentric sphere devices it is welded on surface of the work, and takes off the homocentric sphere in each homocentric sphere device,
With laser tracker measurement bead replace, then by laser tracker measure bead sphere centre coordinate, and by sphere centre coordinate from
Measure coordinate system and be transformed into design coordinate system；
(3), bead on ball seat is taken off, change homocentric sphere, and workpiece is fixed on the processing platform of mechanical processing machine；
(4), in being inserted in homocentric sphere by mechanical processing machine point of rod in the central blind hole of ball, in utilization, a point rod is measured and is obtained
The sphere centre coordinate of homocentric sphere；
(5) sphere centre coordinate recorded according to step (2), step (4), is transformed into lathe coordinate system by workpiece from design coordinate system,
Realize the machine tooling to workpiece to position.
A kind of mechanical processing machine localization method the most according to claim 1, it is characterised in that: have three on described ball seat
Pawl structure, holds ectosphere or laser tracker measurement bead by three-jaw structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298237.1A CN105855994A (en) | 2016-05-05 | 2016-05-05 | Positioning method for machining machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298237.1A CN105855994A (en) | 2016-05-05 | 2016-05-05 | Positioning method for machining machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105855994A true CN105855994A (en) | 2016-08-17 |
Family
ID=56630515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610298237.1A Pending CN105855994A (en) | 2016-05-05 | 2016-05-05 | Positioning method for machining machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105855994A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271885A (en) * | 2016-08-31 | 2017-01-04 | 哈尔滨电机厂有限责任公司 | Steam turbine generator stand processing centering process |
| CN110136204A (en) * | 2019-03-19 | 2019-08-16 | 浙江大学山东工业技术研究院 | Sound film top dome assembly system based on the calibration of bilateral telecentric lens camera machine tool position |
| CN110238699A (en) * | 2019-06-04 | 2019-09-17 | 淮南新能源研究中心 | Mechanical processing and positioning system and method without the large-scale double-deck complex curved surface part of benchmark |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050147477A1 (en) * | 2004-01-06 | 2005-07-07 | The Boeing Company | Laser-guided coordination hole drilling |
| CN102091814A (en) * | 2010-12-17 | 2011-06-15 | 二重集团（德阳）重型装备股份有限公司 | Method for realizing accurate processing of curved surface by combining laser tracking technology with CAD (computer-aided design)/CAM (computer-aided manufacturing) technology |
| CN102581694A (en) * | 2012-02-02 | 2012-07-18 | 哈尔滨飞机工业集团有限责任公司 | Method for adjusting coordinate system for machining composite material components |
| CN104296654A (en) * | 2014-09-26 | 2015-01-21 | 中国科学院光电研究院 | Device and method for detecting zero position installation errors of position detector of laser tracker |
-
2016
- 2016-05-05 CN CN201610298237.1A patent/CN105855994A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050147477A1 (en) * | 2004-01-06 | 2005-07-07 | The Boeing Company | Laser-guided coordination hole drilling |
| CN102091814A (en) * | 2010-12-17 | 2011-06-15 | 二重集团（德阳）重型装备股份有限公司 | Method for realizing accurate processing of curved surface by combining laser tracking technology with CAD (computer-aided design)/CAM (computer-aided manufacturing) technology |
| CN102581694A (en) * | 2012-02-02 | 2012-07-18 | 哈尔滨飞机工业集团有限责任公司 | Method for adjusting coordinate system for machining composite material components |
| CN104296654A (en) * | 2014-09-26 | 2015-01-21 | 中国科学院光电研究院 | Device and method for detecting zero position installation errors of position detector of laser tracker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271885A (en) * | 2016-08-31 | 2017-01-04 | 哈尔滨电机厂有限责任公司 | Steam turbine generator stand processing centering process |
| CN110136204A (en) * | 2019-03-19 | 2019-08-16 | 浙江大学山东工业技术研究院 | Sound film top dome assembly system based on the calibration of bilateral telecentric lens camera machine tool position |
| CN110238699A (en) * | 2019-06-04 | 2019-09-17 | 淮南新能源研究中心 | Mechanical processing and positioning system and method without the large-scale double-deck complex curved surface part of benchmark |
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Application publication date: 20160817 |