CN205066723U - Combined positioning device - Google Patents
Combined positioning device Download PDFInfo
- Publication number
- CN205066723U CN205066723U CN201520732422.8U CN201520732422U CN205066723U CN 205066723 U CN205066723 U CN 205066723U CN 201520732422 U CN201520732422 U CN 201520732422U CN 205066723 U CN205066723 U CN 205066723U
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- China
- Prior art keywords
- guide rail
- positioning device
- slide block
- probe
- base plate
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- Expired - Fee Related
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- 239000000523 sample Substances 0.000 claims abstract description 87
- 239000004579 marble Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004807 localization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model provides a combined positioning device and a positioning method, wherein the combined positioning device comprises a bottom plate and a supporting part; a first guide rail is arranged on the bottom plate, the first guide rail is parallel to the bottom plate, a first sliding block and a second sliding block are arranged on the first guide rail, and a first pointer type dial indicator and a second pointer type dial indicator are respectively arranged on the first sliding block and the second sliding block; the supporting part comprises a transverse section and a vertical section, the transverse section is fixedly connected with the bottom plate, and the vertical section is perpendicular to the bottom plate; the transverse section is provided with a positioning hole for mounting a probe seat of the probe assembly; the vertical section is provided with a second guide rail, the second guide rail is vertical to the first guide rail, and a third sliding block is arranged on the second guide rail; and a positioning head is arranged on the third sliding block, the positioning head is parallel to the transverse part, and the positioning head is used for limiting the center of the magnetic chuck positioning groove of the probe assembly. The utility model discloses simple structure, the location is swift, reduces artificial measuring error, has further improved three-coordinate measuring machine's measurement of efficiency and range of application.
Description
Technical field
The utility model relates to Precision Inspection field, specifically be a kind of integrated positioning device and localization method.
Background technology
Along with the fast development of electromechanical integration technology and computer technology, three coordinate measuring machine progressively walks close to production scene, and the working environment of particularly precision manufactureing and inspection in enormous quantities, is widely used in the fields such as precision optical machinery, electronics, instrument.Three coordinate measuring machine makes one of measurement and the most effectual way obtaining dimensional data, and can substitute multiple survey instrument, measuring accuracy is high, reproducible.
The probe base assembly 5 of three coordinate measuring machine, as Fig. 2, comprise probe base 5-4, connecting link 5-3, probe 5-8, magnetic chuck 5-1 and magnetic chuck base 5-2, the lower end of connecting link is connected with probe base, upper end is connected with magnetic chuck base, magnetic chuck is connected on magnetic chuck base by dog screw 5-6, the sidewall of magnetic chuck is provided with locating slot 5-5, by loosening dog screw, can spin magnetization sucker, locating slot is turned to desired location, then tightens screw magnetic chuck is fixed, probe base is provided with four threaded holes, four threaded holes are for installing probe, four threaded holes are positioned at same plane, relative between two in the threaded hole of four threaded holes, wherein the line of two threaded holes is the X-axis of probe base, the line of another two threaded holes is the Y-axis of probe base, the X-axis of probe base is vertical with Y-axis, the X-axis of probe base or Y-axis are probe base axis 5-10, locating slot on magnetic chuck is circular arc, supposed that the center of locating slot existed straight line L, this straight line L is called locating slot axis 5-9, locating slot is along locating slot axisymmetrical, when finding location accurately to probe assembly, overlook directly over magnetic chuck, if with the X-axis of probe base for reference, judge whether the X-axis of probe base overlaps with locating slot axis, then the X-axis of probe base is probe base axis 5-10, if with the Y-axis of probe base for reference, judge whether the Y-axis of probe base overlaps with locating slot axis, then the Y-axis of probe base is probe base axis 5-10.
But, in three-dimensional coordinates measurement, we generally get the surface of worktable as reference field, during with Form and position error such as three coordinate measuring engine measurement circularity and right alignmenies, the cross section curve obtained necessarily with the cross section of the central axis upright of the face of cylinder or circular conical surface, this just requires, when measuring, must make the central axis of the face of cylinder or circular conical surface and the centerline axis parallel of gauge head.If when measured workpiece is directly positioned on worktable, just likely because measurement and positioning end face and central axis out of plumb cause extracting key element distortion, as shown in Figure 1.
We use ZEISSCONTURAG2 three coordinate measuring machine now, because probe base and prolongation connecting link are all threaded connection, when installation star probe assembly, existing method is overlooked directly over magnetic chuck, and whether visual probe base axis overlaps with locating slot axis, and this method easily causes erroneous judgement, make the X-axis of probe base axis and three coordinate measuring machine or Y-axis not parallel, cause extracting key element distortion, cause measuring error, as shown in Figure 3, Figure 4.Visible, when with three-dimensional coordinates measurement circularity, coaxiality error, if it is unreasonable to make workpiece, probe install, all can makes the impact introducing other geometric errors in measuring process, measuring accuracy is deteriorated.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of structure, and easy to operate integrated positioning device and localization method, can carry out centering location to three coordinate measuring machine probe assembly used and measured workpiece.
The utility model provides following technical scheme:
A kind of integrated positioning device, its special character is:
Comprise base plate and support portion;
Described base plate is provided with the first guide rail, first guide rail is parallel with base plate, first guide rail is provided with the first slide block and the second slide block, first slide block and the second slide block all can sliding axially along the first guide rail, first slide block and the second slide block are respectively arranged with the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6, and the gauge outfit of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 is all for contacting with the reference field of measured workpiece;
Described support portion, comprise traversing section and vertical section, traversing section and base plate are connected, and vertical section is vertical with base plate;
Described traversing section is provided with pilot hole, and pilot hole is for installing the probe base of probe assembly, and when probe base is arranged on pilot hole, the connecting link of probe assembly is vertical with base plate, and X-axis or the Y-axis of positioning head and probe base are vertical;
Described vertical section is provided with the second guide rail, and the second guide rail is vertical with the first guide rail, the second guide rail is provided with the 3rd slide block, and the 3rd slide block can sliding axially along the second guide rail;
3rd slide block is provided with positioning head, and positioning head is parallel with transverse part, and positioning head is used for the spacing center at probe assembly magnetic chuck locating slot.
Combinations thereof locating device also comprises backstay, rectangular or " ten " font of pilot hole;
If pilot hole is rectangular, the probe base of pilot hole and three coordinate measuring machine is suitable; Or described backstay has two, these two backstays are respectively used to be connected on two threaded holes relative on probe base;
If pilot hole is in " ten " font, described backstay has four, and these four backstays are respectively used to be connected on four threaded holes on probe base.
Be threaded between support portion with base plate.
Above-mentioned support portion is inverse-T-shaped.
Combinations thereof locating device also comprises support platform, and described base plate is threaded with support platform.
Above-mentioned support platform is marble platform.
The quantity of above-mentioned first guide rail and the second guide rail is one or two.
Be threaded between above-mentioned second guide rail with vertical section.
The utility model has following technique effect:
The mounting and adjusting that the utility model can shorten widely used three coordinate measuring machine star probe assembly in actual applications greatly aims at the time, reduce the artificial measuring error that three coordinate measuring machine is introduced because of probe assembly installation deviation and measured workpiece placement relative position deviation, and then improve the measuring accuracy of three coordinate measuring machine, particularly in measurement large-scale workpiece step deep hole circularity, short-bore long distance right alignment, play vital effect, effectively ensure that the measuring accuracy of circularity, deviation from cylindrical form in precision manufactureing and batch checking measurements.
Accompanying drawing explanation
Fig. 1 is the instrumentation plan under existing three coordinate measuring machine does not align situation.
Fig. 2 is that existing three coordinate measuring machine probe assembly installs stereographic map.
Fig. 3 is that existing three coordinate measuring machine probe assembly installation axis aligns figure (namely overlooking directly over magnetic chuck, locating slot axis and probe base dead in line).
Fig. 4 is that existing three coordinate measuring machine probe installation axis does not align figure (namely overlook directly over magnetic chuck, locating slot axis does not overlap with probe base axis).
Fig. 5 is that the master of the utility model locating device looks part sectioned view.
Fig. 6 is the vertical view of the utility model locating device.
Fig. 7 is the left view of the utility model locating device.
Fig. 8 is the partial enlarged drawing of part A in Fig. 5.
Fig. 9 is the partial enlarged drawing of part B in Fig. 5.
Figure 10 is the partial enlarged drawing of C part in Fig. 6.
In figure, 1-1 is base plate, 1-2 is the first guide rail, 1-3 is the first slide block, 1-4 is the second slide block, 1-5 is the first pointer clock gauge, 1-6 is the second pointer clock gauge, 1-7 is the first guide rail gib screw, 2-1 is vertical section, 2-2 is the second guide rail, 2-3 is the 3rd slide block, 2-4 is positioning head, 2-5 is the second guide rail gib screw, 2-6 is support portion gib screw, 2-7 is long spiro nail, 2-8 is pilot hole, 3 is support platform, 3-1 is the gib screw of base plate and support platform, 3-2 is retaining thread hole, 4 is measured workpiece, 5 is the probe assembly of three coordinate measuring machine, 5-1 is magnetic chuck, 5-2 is magnetic chuck base, 5-3 is connecting link, 5-4 is probe base, 5-5 is locating slot, 5-6 is dog screw, 5-7 is connecting thread hole, 5-8 is probe, 5-9 is locating slot axis, 5-10 is probe base axis.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 5 to Figure 10, the utility model provides a kind of integrated positioning device, comprises base plate 1-1 and support portion; Base plate is provided with the first guide rail 1-2, first guide rail is parallel with base plate, first guide rail is provided with the first slide block 1-3 and the second slide block 1-4, first slide block and the second slide block all can sliding axially along the first guide rail, first slide block and the second slide block are respectively arranged with the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6, and the gauge outfit of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 is all for contacting with the reference field of measured workpiece; Move horizontally the first cross sliding clock 1-3 according to measured workpiece 4 benchmark length, the second cross sliding clock fix 1-4, so make the first pointer clock gauge 1-5, the second pointer clock gauge 1-6 gauge outfit contacts with measured workpiece 4 reference field.
Support portion comprises traversing section and vertical section 2-1, and traversing section and base plate are connected, and vertical section is vertical with base plate;
Traversing section is provided with pilot hole 2-8, and pilot hole is for installing the probe base of probe assembly, and when probe base is arranged on pilot hole, the connecting link of probe assembly is vertical with base plate, and X-axis or the Y-axis of positioning head and probe base are vertical;
Vertical section is provided with the second guide rail 2-2, and the second guide rail is vertical with the first guide rail, the second guide rail is provided with the 3rd slide block 2-3, and the 3rd slide block can sliding axially along the second guide rail;
3rd slide block is provided with positioning head 2-4, and positioning head is parallel with transverse part, and positioning head is used for the spacing center at probe assembly magnetic chuck locating slot.
Described integrated positioning device also comprises backstay, rectangular or " ten " font of pilot hole;
If pilot hole is rectangular, the probe base of pilot hole and three coordinate measuring machine is suitable; Or described backstay has two, these two backstays are respectively used to be connected on two threaded holes relative on probe base;
If pilot hole is in " ten " font, described backstay has four, and these four backstays are respectively used to be connected on four threaded holes on probe base.
Be threaded between support portion with base plate.Support portion is inverse-T-shaped, integrated positioning device also comprises support platform 3, and base plate is connected by screw with support platform, and support platform is marble platform, the quantity of the first guide rail and the second guide rail is one or two, is connected between the second guide rail with vertical section by screw thread.
Use the localization method of the utility model integrated positioning device:
1) integrated positioning device is placed on the measurement zone of three coordinate measuring machine, standard gauge block is placed in support platform, standard gauge block comprises two relative reference fields, is respectively the first reference field and the second reference field, and the probe of Z axis on three coordinate measuring machine is contacted with the first reference field;
2) along the first rail length direction, use three coordinate measuring machine by one end of the first reference field to the other end, choose at least two measurement points, measure, the measurement result obtained is the Y-axis coordinate at three coordinate measuring machine corresponding to corresponding measurement point;
If these values are all equal, carry out step 3);
Otherwise, slightly twist standard gauge block, re-start step 2);
3) standard gauge block is fixed;
Second reference field of standard gauge block is all contacted with the gauge outfit of the second pointer clock gauge 1-6 with the first pointer clock gauge 1-5;
If the dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 is equal, by the equal zero setting of dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6, namely the zeroing to integrated positioning device is completed, now, first guide rail is parallel with the X-axis of three coordinate measuring machine, and the second guide rail is parallel with the Z axis of three coordinate measuring machine;
If the dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 is unequal, the described integrated positioning device of slight twisting, make the dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 equal, by the equal zero setting of dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6, namely the zeroing to integrated positioning device is completed, now, the first guide rail is parallel with the X-axis of three coordinate measuring machine, and the second guide rail is parallel with the Z axis of three coordinate measuring machine;
4) standard gauge block is removed;
5) insert in pilot hole 2-8 by the probe base of probe assembly, the precision-fit gap of probe base and pilot hole is 0.01mm; Then mobile 3rd slide block;
If positioning head can the spacing center at probe assembly magnetic chuck locating slot, now, X-axis or the Y-axis of positioning head and probe base are vertical, then what complete probe assembly finds positioning work accurately; When at this moment overlooking directly over magnetic chuck, locating slot axis and probe base dead in line, that is: if during the spacing center at probe assembly magnetic chuck locating slot of positioning head energy, positioning head is vertical with the X-axis of probe base, then locating slot axis is vertical with the X-axis of probe base;
If positioning head can not the spacing center at probe assembly magnetic chuck locating slot, then loosen the dog screw 5-6 on magnetic chuck 5-1, spin magnetization sucker 5-1, enable the spacing center at probe assembly magnetic chuck locating slot of positioning head, now, X-axis or the Y-axis of positioning head and probe base are vertical, then screwed in place screw 5-6, by spacing for the positioning head center at probe assembly magnetic chuck locating slot, then what complete probe assembly finds positioning work accurately; When at this moment overlooking directly over magnetic chuck, locating slot axis and probe base dead in line; That is: if during the spacing center at probe assembly magnetic chuck locating slot of positioning head energy, positioning head is vertical with the X-axis of probe base, then locating slot axis is vertical with the X-axis of probe base;
Wherein, the precision-fit gap of the locating slot 5-5 on positioning head 2-4 and magnetic chuck 5-1 can be 0.01mm;
6) be placed in support platform 3 by measured workpiece 4, measured workpiece 4 reference field all contacts with the gauge outfit of the second pointer clock gauge 1-6 with the first pointer clock gauge 1-5,
If the dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 is equal, namely measured workpiece 4 is found location accurately and is completed, and then keeps measured workpiece 4 motionless, utilizes relevant form and position tolerance and the size of three coordinate measuring engine measurement measured workpiece 4;
If the dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 is unequal, the described integrated positioning device of slight twisting, make the dial reading of the first pointer clock gauge 1-5 and the second pointer clock gauge 1-6 equal, namely measured workpiece 4 is found location accurately and is completed, then keep measured workpiece 4 motionless, utilize relevant form and position tolerance and the size of three coordinate measuring engine measurement measured workpiece 4;
Wherein, step 5) with step 6) order be to exchange, also can carry out simultaneously.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model; can not assert that embodiment of the present utility model is only limitted to this; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as belonging to the utility model by submitted to claims determination scope of patent protection.
Claims (8)
1. an integrated positioning device, is characterized in that:
Comprise base plate and support portion;
Described base plate is provided with the first guide rail, first guide rail is parallel with base plate, first guide rail is provided with the first slide block and the second slide block, first slide block and the second slide block all can sliding axially along the first guide rail, first slide block and the second slide block are respectively arranged with the first pointer clock gauge (1-5) and the second pointer clock gauge (1-6), and the gauge outfit of the first pointer clock gauge (1-5) and the second pointer clock gauge (1-6) is all for contacting with the reference field of measured workpiece;
Described support portion, comprise traversing section and vertical section, traversing section and base plate are connected, and vertical section is vertical with base plate;
Described traversing section is provided with pilot hole, and pilot hole is for installing the probe base of probe assembly, and when probe base is arranged on pilot hole, the connecting link of probe assembly is vertical with base plate, and X-axis or the Y-axis of positioning head and probe base are vertical;
Described vertical section is provided with the second guide rail, and the second guide rail is vertical with the first guide rail, the second guide rail is provided with the 3rd slide block, and the 3rd slide block can sliding axially along the second guide rail;
3rd slide block is provided with positioning head, and positioning head is parallel with transverse part, and positioning head is used for the spacing center at probe assembly magnetic chuck locating slot.
2. integrated positioning device according to claim 1, is characterized in that: described integrated positioning device also comprises backstay, rectangular or " ten " font of pilot hole;
If pilot hole is rectangular, the probe base of pilot hole and three coordinate measuring machine is suitable; Or described backstay has two, these two backstays are respectively used to be connected on two threaded holes relative on probe base;
If pilot hole is in " ten " font, described backstay has four, and these four backstays are respectively used to be connected on four threaded holes on probe base.
3. integrated positioning device according to claim 2, is characterized in that: be threaded between support portion with base plate.
4. integrated positioning device according to claim 3, is characterized in that: described support portion is inverse-T-shaped.
5. integrated positioning device according to claim 4, is characterized in that: described integrated positioning device also comprises support platform, and described base plate is threaded with support platform.
6. integrated positioning device according to claim 5, is characterized in that: described support platform is marble platform.
7., according to the arbitrary described integrated positioning device of claim 1 to 6, it is characterized in that: the quantity of described first guide rail and the second guide rail is one or two.
8. integrated positioning device according to claim 7, is characterized in that: be threaded between described second guide rail with vertical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732422.8U CN205066723U (en) | 2015-09-21 | 2015-09-21 | Combined positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732422.8U CN205066723U (en) | 2015-09-21 | 2015-09-21 | Combined positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066723U true CN205066723U (en) | 2016-03-02 |
Family
ID=55393267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520732422.8U Expired - Fee Related CN205066723U (en) | 2015-09-21 | 2015-09-21 | Combined positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157639A (en) * | 2015-09-21 | 2015-12-16 | 中国科学院西安光学精密机械研究所 | Combined positioning device and positioning method |
-
2015
- 2015-09-21 CN CN201520732422.8U patent/CN205066723U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157639A (en) * | 2015-09-21 | 2015-12-16 | 中国科学院西安光学精密机械研究所 | Combined positioning device and positioning method |
| CN105157639B (en) * | 2015-09-21 | 2017-08-25 | 中国科学院西安光学精密机械研究所 | Combined positioning device and positioning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20180921 |