CN2105043U - Enclosed frame movable gantry of 3-coordinate measurer - Google Patents
Enclosed frame movable gantry of 3-coordinate measurer Download PDFInfo
- Publication number
- CN2105043U CN2105043U CN 91221758 CN91221758U CN2105043U CN 2105043 U CN2105043 U CN 2105043U CN 91221758 CN91221758 CN 91221758 CN 91221758 U CN91221758 U CN 91221758U CN 2105043 U CN2105043 U CN 2105043U
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- guide rail
- bearing
- air bearing
- gantry
- closed frame
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses an enclosed frame movable gantry of 3-coordinate measurer, which is composed of a guide rail and an enclosed framework. The guide rail is an air bearing guide rail which is composed of a main air bearing and a guide air bearing, and the main air bearing and the guide air bearing are supported on the horizontal plane of a work table and also respectively on the left and the right side surfaces. The enclosed framework is composed of a granite cross beam, a granite lashing strip, a left post, a right post, a locating pin, and a screw bolt; the locating pin and the screw bolt are used to tighten the granite cross beam, the granite lashing strip, and the left and the right posts. The center of the lashing strip is provided with a driving bar and a grating ruler. The utility model has the advantages of high rigidity and high measuring precision; working components are not moved during the measuring time; the center driving and the center grating are adopted, so gantry crane sloping twist can be reduced; the utility model can be used in a three-coordinate measuring machine.
Description
The utility model relates to closed frame formula activity gantry of three-coordinate measuring machine, closed frame formula activity gantry of the three-coordinate measuring machine of the three-coordinate measuring machine of more clearly the say so physical dimension, shape and the position of related features that are used for the precision measurement part.
Movable gantry of the three-coordinate measuring machine in past mostly is open type greatly.Wherein the column of a side is an open type.This movable gantry is subjected to the restriction of structure, and X can only monolateral driving gantry and monolateral layout grating when measuring.Because gantry lacks on one side, poor rigidity influences measuring accuracy.Not only bigger during this movable gantry motion around Z shaft angle pendulum, and angle swing produces " hysteresiss " phenomenon during forward-reverse, and this hysteresis phenomenon is relevant with speed, acceleration that measuring machine moves again.The error that this situation causes, very most of is stochastic error, thereby difficult way with correction solves.This movable gantry produces hysteresis angle swing β during along the guide rail positive movement.During negative movement, produce hysteresis angle swing α.This angle swing has changed the verticality of X-axis and y axle, and its influence also is at random.When measuring, often X, y direction move simultaneously.Its error and single shaft motion are different, also can add large space and survey long uncertainty.Simultaneously, X departs from the worktable center to the grating chi, has strengthened Abbe error.
Also there is a kind of closed frame formula activity gantry in past, but big on its structure its lower and upper cross-member and left and right pillar and worktable all adopt cast iron materials and complicated, and its elastic modulus is less, is out of shape greatlyyer, and difficulty of processing is big, and price is expensive.To this, University Of Tianjin's land uncle's seal documents such as " three-coordinate measuring machine technical development summaries " has more to be addressed.
The purpose at closed frame formula activity gantry of the utility model three-coordinate measuring machine, be to overcome above-mentioned shortcoming and defect, provide a kind of simple in structure, processing easily, rigidity is better, substantially overcome angle swing, reduced Abbe error, thereby improved measuring accuracy, reduced closed frame formula activity gantry of the three-coordinate measuring machine of length and form and position tolerance Measurement Uncertainty.
In order to achieve the above object, closed frame formula activity gantry of the utility model three-coordinate measuring machine is by being installed in guide rail on worktable or the base, being installed on the guide rail and with the closed frame that balladeur train is installed on it and constituting.Closed frame is by the grouan system crossbeam that balladeur train is installed, be fastened on the carbon constructional quality steel system left column and the right column at grouan system crossbeam two ends respectively, two ends constitute with the grouan system tie rod of left column and the fastening binding of right column and fastening their register pin and bolt respectively.The tie rod center is installed with driving stem and grating chi.
The guide rail that is installed on worktable or the base can be spherical guide, line slideway and air bearing guide rail.Wherein the mechanical precision of air bearing guide rail and transmission performance are best.Air bearing guide rail of the present utility model is made of the guiding air-bearing that is bearing in the main air-bearing on the driving water plane and be bearing on the worktable left and right side.This air-bearing is quiet formula plane air bearing, and its load-bearing capacity, rigidity are all had certain requirement, and should notice preventing that gas from shaking.Requirement to source of the gas is generally 0.49～0.58MPa, enters the air bearing place and is generally 0.29～0.34MPa.
Grouan has higher modulus of elasticity and specific stiffness, and lower thermal expansivity is arranged, and is used to make crossbeam and brace member is more satisfactory.Four members of closed frame connect with bolt, fix with orthogonal register pin, to satisfy high-precision size, form and position tolerance and rigidity requirement.The utility model is middle drive-type, and driving stem and grating chi are installed on the tie rod center.The middle driving solved the disadvantage of the monolateral driving of general coordinate measuring machine, reduced Abbe error, realized measuring at a high speed.Worktable separates with closed frame formula activity gantry guide rail, has prevented that effectively workpiece weight from making the problem of guide rail distortion.
The task at closed frame formula activity gantry of the utility model three-coordinate measuring machine comes to this and finishes.
The utility model provides that a kind of structure is little and simple, processing easily, cost is lower, four members of closed frame adopt grouan and two kinds of materials of carbon constructional quality steel; Good rigidly; Angle swing when having overcome movable gantry substantially and moving, reduced Abbe error; Thereby improved measuring accuracy, reduced closed frame formula activity gantry of the three-coordinate measuring machine of length and form and position tolerance Measurement Uncertainty.Its measuring accuracy is brought up to 0.003～0.005 millimeter by 0.01 millimeter of past.It can be widely used in the three-coordinate measuring machine of work type and metering type.
Below in conjunction with embodiment and accompanying drawing thereof the utility model is done further to explain.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation at open type activity gantry in the past.
Among Fig. 1, present embodiment constitutes by being installed in guide rail 2 on the worktable 1 and the closed frame that is installed on the guide rail 2.Balladeur train 3 is installed on the crossbeam 4 of closed frame.Crossbeam 4, left column 5, right column 6 and tie rod 7 have constituted closed frame with register pin and bolt 8 fastening bindings.Tie rod 7 centers are installed with driving stem 9 and grating chi 10.Crossbeam 4 and tie rod 7 are made with grouan.Left column 5 and right column 6 are made with carbon constructional quality steel.Guide rail 2 constitutes by being bearing in main air-bearing 11 on the driving water plane and the guiding air-bearing 12 that is bearing on the worktable left and right side, is a kind of air bearing guide rail.The present embodiment good rigidly, measuring accuracy is brought up to 0.004 millimeter by 0.01 millimeter of past, can be widely used in work type and the metering type three-coordinate measuring machine.
Among Fig. 2, movable gantry is made of crossbeam 4, left column 5 and right column 6.Balladeur train 3 is installed on the crossbeam 4.Driving stem 9 and grating chi 10 are installed on one-sided, are a kind of monolateral type of drive, and Abbe error is big.This open type activity gantry bottom does not seal, and poor rigidity produces big angle swing during measurement, and the precision of measurement is lower.
Claims (2)
1, a kind of by the guide rail that is installed on worktable or the base.Closed frame formula activity gantry of the three-coordinate measuring machine that closed frame constituted that is installed on the guide rail and balladeur train is installed on it, it is characterized in that said closed frame is by the grouan system crossbeam that balladeur train is installed, be fastened on the carbon steel system left column and the right column at grouan system crossbeam two ends respectively, two ends constitute with the grouan system tie rod of left column and the fastening binding of right column and fastening their register pin and bolt respectively.The tie rod center is installed with driving stem and grating chi.
2, according to closed frame formula activity gantry of the described three-coordinate measuring machine of claim 1, it is characterized in that the said guide rail that is installed on the worktable is a kind of air bearing guide rail, it is made of the guiding air-bearing that is bearing in the main air-bearing on the driving water plane and be bearing on the worktable left and right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91221758 CN2105043U (en) | 1991-09-24 | 1991-09-24 | Enclosed frame movable gantry of 3-coordinate measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91221758 CN2105043U (en) | 1991-09-24 | 1991-09-24 | Enclosed frame movable gantry of 3-coordinate measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2105043U true CN2105043U (en) | 1992-05-20 |
Family
ID=4928710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91221758 Pending CN2105043U (en) | 1991-09-24 | 1991-09-24 | Enclosed frame movable gantry of 3-coordinate measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2105043U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7726035B2 (en) | 2007-12-12 | 2010-06-01 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Measuring device |
| CN101126631B (en) * | 2007-09-25 | 2010-06-02 | 中国航空工业第一集团公司北京航空精密机械研究所 | Three coordinate measuring machine grating reading head self-adaptive device |
| CN102288143A (en) * | 2011-04-28 | 2011-12-21 | 昆山双虎电子科技有限公司 | High-passing performance three-coordinate measuring device |
| CN102944172A (en) * | 2012-10-30 | 2013-02-27 | 苏州高瑞实业有限公司 | Air float type image measurement instrument |
| CN105222708A (en) * | 2015-09-29 | 2016-01-06 | 爱佩仪中测（成都）精密仪器有限公司 | A kind of beam with both ends built-in formula 3 D measuring instrument |
| CN105241405A (en) * | 2015-09-29 | 2016-01-13 | 爱佩仪中测（成都）精密仪器有限公司 | Door type three-coordinate measuring instrument |
| CN108278957A (en) * | 2017-01-06 | 2018-07-13 | 株式会社三丰 | Form measuring instrument and mobile mechanism |
| CN109405786A (en) * | 2017-08-18 | 2019-03-01 | 卡尔蔡司工业测量技术有限公司 | Air bearing device, coordinate measuring machine and manufacturing method for coordinate measuring machine |
-
1991
- 1991-09-24 CN CN 91221758 patent/CN2105043U/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126631B (en) * | 2007-09-25 | 2010-06-02 | 中国航空工业第一集团公司北京航空精密机械研究所 | Three coordinate measuring machine grating reading head self-adaptive device |
| US7726035B2 (en) | 2007-12-12 | 2010-06-01 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Measuring device |
| CN101458058B (en) * | 2007-12-12 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Measuring device |
| CN102288143A (en) * | 2011-04-28 | 2011-12-21 | 昆山双虎电子科技有限公司 | High-passing performance three-coordinate measuring device |
| CN102944172A (en) * | 2012-10-30 | 2013-02-27 | 苏州高瑞实业有限公司 | Air float type image measurement instrument |
| CN105222708A (en) * | 2015-09-29 | 2016-01-06 | 爱佩仪中测（成都）精密仪器有限公司 | A kind of beam with both ends built-in formula 3 D measuring instrument |
| CN105241405A (en) * | 2015-09-29 | 2016-01-13 | 爱佩仪中测（成都）精密仪器有限公司 | Door type three-coordinate measuring instrument |
| CN108278957A (en) * | 2017-01-06 | 2018-07-13 | 株式会社三丰 | Form measuring instrument and mobile mechanism |
| CN109405786A (en) * | 2017-08-18 | 2019-03-01 | 卡尔蔡司工业测量技术有限公司 | Air bearing device, coordinate measuring machine and manufacturing method for coordinate measuring machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |