CN104197876A - Contact type air flotation measuring head - Google Patents
Contact type air flotation measuring head Download PDFInfo
- Publication number
- CN104197876A CN104197876A CN201410426284.0A CN201410426284A CN104197876A CN 104197876 A CN104197876 A CN 104197876A CN 201410426284 A CN201410426284 A CN 201410426284A CN 104197876 A CN104197876 A CN 104197876A
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- air
- bearing
- counterweight
- sounding rod
- gauge head
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Abstract
The invention discloses a contact type air flotation measuring head. The contact type air flotation measuring head comprises a mounting plate, an air flotation shaft, a measuring rod component, an oscillating bar component and a grating scale, the air flotation shaft is firmly arranged on the mounting plate through an air flotation bearing, the air flotation shaft is firmly provided with the measuring rod component and oscillating bar component, the measuring rod component comprises a measuring rod body and a measuring head body, the measuring head body is firmly arranged on the measuring rod body, the measuring rod body is firmly arranged on the air flotation shaft, the oscillating bar component comprises an oscillating bar, the oscillating bar is firmly arranged on the air flotation shaft, the scale grating of the grating scale is firmly arranged on the oscillating bar, and the grating reading head of the grating scale is firmly arranged on the mounting plate. The contact type air flotation measuring head is capable of realizing the high-precision measurement for the measured object.
Description
Technical field
The present invention relates to parts detection field, relate in particular to a kind of contact air bearing gauge head that is applied to non-spherical measuring instrument.
Background technology
Current, the detection method of part is had a variety of, be mainly divided into contact type measurement and non-contact measurement.Contact type measurement mainly by contourgraph or three-coordinates measuring machine by optical element being carried out to the measurement of multiple discrete points, then pass through data processing, matching obtains face shape error.Non-contact measurement mainly contains shadowing method, laser scanning method, interferometric method etc.
Machine tool parts have various shapes, size, and modern precision machine tool is high to the precision requirement of parts, requires higher accordingly to high-accuracy detection technique; Often adopt non-spherical measuring instrument for the aspheric surface detection of parts and the measurement of aspheric optical lens, this measuring instrument is contact type measurement instrument.For non-spherical measuring instrument, the principal element that affects its measuring accuracy has the accuracy of detection of gauge head, if the accuracy of detection of gauge head is lower, will make a big impact to the measuring accuracy of non-spherical measuring instrument.
Summary of the invention
The object of the invention is to provide a kind of simple in structure, contact air bearing gauge head that accuracy of detection is high.
Technical solution problem of the present invention adopts following technical scheme: a kind of contact air bearing gauge head, comprise installing plate, air-bearing shafts, sounding rod assembly, oscillating bar assembly and grating scale, described air-bearing shafts is fixedly mounted on installing plate by air-bearing, on described air-bearing shafts, be installed with sounding rod assembly and oscillating bar assembly, the rotating torque that described sounding rod assembly acts on air-bearing shafts is zero, described sounding rod assembly comprises sounding rod body and gauge head, described gauge head is fixedly mounted on sounding rod body, described sounding rod body is fixedly mounted on air-bearing shafts, described oscillating bar assembly comprises fork, described fork is fixedly mounted on air-bearing shafts, the scale grating of described grating scale is fixedly mounted on fork, the grating reading head of described grating scale is fixedly mounted on installing plate, the rotating torque that described oscillating bar assembly and scale grating act on air-bearing shafts is zero.
Optionally, the surface that described fork is installed scale grating is arc surface, and the center of circle of described arc surface is positioned on the axis of air-bearing shafts, and described scale grating is fitted on described arc surface.
Optionally, described sounding rod assembly also comprises the first counterweight, and described gauge head is fixed on one end of sounding rod body, and described the first counterweight is fixed on the other end of sounding rod body.
Optionally, described the first counterweight is cylindrical, on the end face of described the first counterweight, has been threaded connection adjusting bolt, the axis out of plumb of the axis of the screw rod of described adjusting bolt and sounding rod body.
Optionally, the dead in line of the axis of described the first counterweight and sounding rod body, the angle of the axis of the axis of the screw rod of described adjusting bolt and sounding rod body is 45 degree.
Optionally, described oscillating bar assembly also comprises connecting rod and the second counterweight, and described fork is fixedly mounted on air-bearing shafts by connecting rod, and described the second counterweight is fixedly mounted on air-bearing shafts.
Optionally, described sounding rod assembly, connecting rod and fork are all positioned at the front side of installing plate, and described the second counterweight is positioned at the rear side of installing plate.
Optionally, described the second counterweight comprises counterweight part and installation portion, described counterweight part be shaped as semicircle cylindricality, described installation portion is fixedly connected on the plane surface of counterweight part, described installation portion is fixedly set on air-bearing shafts.
Optionally, on described installing plate, offer pore, described pore is communicated with the air intake opening of air-bearing.
The present invention has following beneficial effect: this device arranges sounding rod assembly and oscillating bar assembly on air-bearing shafts, the gauge head of sounding rod assembly and measured object Surface Contact, the circular arc of measured object is changed and passes to air-bearing shafts, air-bearing shafts drives fork to swing, then signal is passed to grating reading head, complete measurement.Because air-bearing shafts is fixedly mounted on installing plate by air-bearing, air-bearing produces gas mould air-bearing shafts is floated, can realize air-bearing shafts easily rotates, without friction, non-resistance, carry out precision measurement by grating, complete the measurement to measured object, therefore, this device can be realized the high-acruracy survey to measured object.
Brief description of the drawings
Fig. 1 is the front view of a kind of contact air bearing gauge head of the present invention;
Fig. 2 is the cut-open view along A-A direction in Fig. 1;
In figure, mark is illustrated as: 10-installing plate; 11-erecting frame; 20-air-bearing shafts; 21-air-bearing; 30-sounding rod body; 31-gauge head; 32-the first counterweight; 33-adjusting bolt; 40-fork; 41-scale grating; 42-grating reading head; 43-connecting rod; 44-the second counterweight; 45-counterweight part; 46-installation portion; 47-plane surface.
Embodiment
Below in conjunction with embodiment and accompanying drawing, technical scheme of the present invention is further elaborated.
Embodiment 1
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of contact air bearing gauge head, comprises installing plate 10, air-bearing shafts 20, sounding rod assembly, oscillating bar assembly and grating scale.The cross section of installing plate 10 is L-shaped, and installing plate 10 is mounted by means of bolts on erecting frame 11, and installing plate 10 is positioned at the front side of erecting frame 11.
Air-bearing shafts 20 is fixedly mounted on installing plate 10 by air-bearing 21, in the present embodiment, on installing plate 10, offers pore, and pore is communicated with the air intake opening of air-bearing 21, thinks air-bearing 21 air feed.On air-bearing shafts 20, be installed with sounding rod assembly and oscillating bar assembly, the rotating torque that sounding rod assembly acts on air-bearing shafts 20 is zero, sounding rod assembly comprises sounding rod body 30 and gauge head 31, gauge head 31 is fixedly mounted on sounding rod body 30, sounding rod body 30 is through after air-bearing shafts 20, fixing by bolt and air-bearing shafts 20.Oscillating bar assembly comprises fork 40, fork 40 is fixedly mounted on air-bearing shafts 20, the scale grating 41 of grating scale is fixedly mounted on fork 40, and the grating reading head 42 of grating scale is fixedly mounted on installing plate 10, and the scale grating 41 of grating scale is corresponding with the position of grating reading head 42.The rotating torque that oscillating bar assembly and scale grating 41 act on air-bearing shafts 20 is zero, and sounding rod assembly is positioned at the front of installing plate 10.
The course of work of this device is: by the gauge head of sounding rod assembly 31 and measured object Surface Contact, the circular arc of measured object is changed and passes to air-bearing shafts 20, air-bearing shafts 20 is interior without friction, unresisted rotation at air-bearing 21, thereby air-bearing shafts 20 drives fork 40 to swing, fork 40 drives the scale grating 41 on it to rotate, then signal is passed to grating reading head 42, complete measurement.
In order further to mention the precision of measurement, in the present embodiment, the surface of scale grating 41 is installed is arc surface to fork 40, and the center of circle of arc surface is positioned on the axis of air-bearing shafts 20, and scale grating 41 is fitted on described arc surface.
The length of stretching out from air-bearing shafts 20 1 sides in order to increase sounding rod, in the present embodiment, sounding rod assembly also comprises the first counterweight 32, and gauge head 31 is fixed on one end of sounding rod body 30, and the first counterweight 32 is fixed on the other end of sounding rod body 30.
In the present invention, the gauge head in sounding rod assembly can use different models.Be zero in order to make sounding rod assembly with respect to the torque of air supported head, in the present embodiment, the first counterweight 32 is cylindrical, has been threaded connection adjusting bolt 33 on the end face of the first counterweight 32, the axis out of plumb of the axis of the screw rod of adjusting bolt 33 and sounding rod body 30.The degree of depth that is screwed into the first counterweight 32 by changing adjusting bolt 33, just can change its torque with respect to air-bearing shafts 20, thereby adapt to dissimilar gauge head.In the present embodiment, the preferably dead in line of the axis of the first counterweight 32 and sounding rod body 30, the angle of the axis of the axis of the screw rod of adjusting bolt 33 and sounding rod body 30 is 45 degree.
In the present embodiment, oscillating bar assembly also comprises connecting rod 43 and the second counterweight 44, and fork 40 is fixedly mounted on air-bearing shafts 20 by connecting rod 43, and the second counterweight 44 is fixedly mounted on air-bearing shafts 20.Sounding rod assembly, connecting rod 43 and fork 40 are all positioned at the front side of installing plate 10, and the second counterweight 44 is positioned at the rear side of installing plate 10.The second counterweight 44 comprises counterweight part 45 and installation portion 46, counterweight part 45 be shaped as semicircle cylindricality, installation portion 46 is fixedly connected on the plane surface 47 of counterweight part 45, installation portion 46 is fixedly set on air-bearing shafts 20.
This device adopts air-bearing shafts to eliminate vibration and the rotation error of air bearing gauge head self, carries out precision measurement by grating, can realize parts to having aspherical shape and the high-accuracy measurement of aspheric optical lens.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a contact air bearing gauge head, it is characterized in that, comprise installing plate (10), air-bearing shafts (20), sounding rod assembly, oscillating bar assembly and grating scale, described air-bearing shafts (20) is fixedly mounted on installing plate (10) by air-bearing (21), described air-bearing shafts is installed with sounding rod assembly and oscillating bar assembly on (20), the rotating torque that described sounding rod assembly acts on air-bearing shafts (20) is zero, described sounding rod assembly comprises sounding rod body (30) and gauge head (31), described gauge head (31) is fixedly mounted on sounding rod body (30), described sounding rod body (30) is fixedly mounted on air-bearing shafts (20), described oscillating bar assembly comprises fork (40), described fork (40) is fixedly mounted on air-bearing shafts (20), the scale grating (41) of described grating scale is fixedly mounted on fork (40), the grating reading head (42) of described grating scale is fixedly mounted on installing plate (10), the rotating torque that described oscillating bar assembly and scale grating (41) act on air-bearing shafts (20) is zero.
2. a kind of contact air bearing gauge head according to claim 1, it is characterized in that, the surface that described fork (40) is installed scale grating (41) is arc surface, the center of circle of described arc surface is positioned on the axis of air-bearing shafts (20), and described scale grating (41) is fitted on described arc surface.
3. a kind of contact air bearing gauge head according to claim 1 and 2, it is characterized in that, described sounding rod assembly also comprises the first counterweight (32), described gauge head (31) is fixed on one end of sounding rod body (30), and described the first counterweight (32) is fixed on the other end of sounding rod body (30).
4. a kind of contact air bearing gauge head according to claim 3, it is characterized in that, described the first counterweight (32) is cylindrical, on the end face of described the first counterweight (32), be threaded connection adjusting bolt (33), the axis out of plumb of the axis of the screw rod of described adjusting bolt (33) and sounding rod body (30).
5. a kind of contact air bearing gauge head according to claim 4, it is characterized in that, the dead in line of the axis of described the first counterweight (32) and sounding rod body (30), the angle of the axis of the axis of the screw rod of described adjusting bolt (33) and sounding rod body (30) is 45 degree.
6. a kind of contact air bearing gauge head according to claim 5, it is characterized in that, described oscillating bar assembly also comprises connecting rod (43) and the second counterweight (44), it is upper that described fork (40) is fixedly mounted on air-bearing shafts (20) by connecting rod (43), and described the second counterweight (44) is fixedly mounted on air-bearing shafts (20).
7. a kind of contact air bearing gauge head according to claim 6, it is characterized in that, described sounding rod assembly, connecting rod (43) and fork (40) are all positioned at the front side of installing plate (10), and described the second counterweight (44) is positioned at the rear side of installing plate (10).
8. a kind of contact air bearing gauge head according to claim 7, it is characterized in that, described the second counterweight (44) comprises counterweight part (45) and installation portion (46), described counterweight part (45) be shaped as semicircle cylindricality, described installation portion (46) is fixedly connected on the plane surface (47) of counterweight part (45), and described installation portion (46) is fixedly set on air-bearing shafts (20).
9. a kind of contact air bearing gauge head according to claim 8, is characterized in that, described installing plate offers pore on (10), and described pore is communicated with the air intake opening of air-bearing (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426284.0A CN104197876B (en) | 2014-08-26 | 2014-08-26 | A kind of contact air bearing gauge head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426284.0A CN104197876B (en) | 2014-08-26 | 2014-08-26 | A kind of contact air bearing gauge head |
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| CN104197876A true CN104197876A (en) | 2014-12-10 |
| CN104197876B CN104197876B (en) | 2017-12-15 |
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| CN201410426284.0A Active CN104197876B (en) | 2014-08-26 | 2014-08-26 | A kind of contact air bearing gauge head |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043295A (en) * | 2015-08-26 | 2015-11-11 | 上海泰勒精密仪器制造有限公司 | In situ precision detector of high-reliability giant slewing bearing part contour |
| CN107621232A (en) * | 2017-09-08 | 2018-01-23 | 昆山冠品优精密机械有限公司 | 4th axis center bulb height testing tool and the 4th axis center high detection method |
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| US4377911A (en) * | 1981-02-18 | 1983-03-29 | Mitutoyo Mfg. Co., Ltd. | Contour measuring instrument |
| US20040168332A1 (en) * | 2003-02-27 | 2004-09-02 | Mitutoyo Corporation | Measuring instrument |
| CN2903907Y (en) * | 2006-05-29 | 2007-05-23 | 于德海 | Sensor lever mechanism for surface shape measurer |
| CN201532192U (en) * | 2009-11-30 | 2010-07-21 | 哈尔滨科瑞精密仪器有限公司 | Large-range high-precision skeleton surveying displacement sensor |
| CN101936699A (en) * | 2010-08-24 | 2011-01-05 | 中国科学院光电技术研究所 | Swing arm type three-dimensional contourgraph |
| CN102128594A (en) * | 2010-12-29 | 2011-07-20 | 哈尔滨量具刃具集团有限责任公司 | Grating lever-structured contact-pin displacement sensor and measuring method thereof |
| CN102183217A (en) * | 2011-03-17 | 2011-09-14 | 西安交通大学 | Arc contourgraph measuring head and measuring method thereof |
| CN102941357A (en) * | 2012-11-21 | 2013-02-27 | 北京海普瑞森科技发展有限公司 | Ultra-precise air floatation spindle structure |
| CN204128522U (en) * | 2014-08-26 | 2015-01-28 | 北京海普瑞森科技发展有限公司 | A kind of contact air bearing gauge head |
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2014
- 2014-08-26 CN CN201410426284.0A patent/CN104197876B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4377911A (en) * | 1981-02-18 | 1983-03-29 | Mitutoyo Mfg. Co., Ltd. | Contour measuring instrument |
| US20040168332A1 (en) * | 2003-02-27 | 2004-09-02 | Mitutoyo Corporation | Measuring instrument |
| CN2903907Y (en) * | 2006-05-29 | 2007-05-23 | 于德海 | Sensor lever mechanism for surface shape measurer |
| CN201532192U (en) * | 2009-11-30 | 2010-07-21 | 哈尔滨科瑞精密仪器有限公司 | Large-range high-precision skeleton surveying displacement sensor |
| CN101936699A (en) * | 2010-08-24 | 2011-01-05 | 中国科学院光电技术研究所 | Swing arm type three-dimensional contourgraph |
| CN102128594A (en) * | 2010-12-29 | 2011-07-20 | 哈尔滨量具刃具集团有限责任公司 | Grating lever-structured contact-pin displacement sensor and measuring method thereof |
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| CN102941357A (en) * | 2012-11-21 | 2013-02-27 | 北京海普瑞森科技发展有限公司 | Ultra-precise air floatation spindle structure |
| CN204128522U (en) * | 2014-08-26 | 2015-01-28 | 北京海普瑞森科技发展有限公司 | A kind of contact air bearing gauge head |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043295A (en) * | 2015-08-26 | 2015-11-11 | 上海泰勒精密仪器制造有限公司 | In situ precision detector of high-reliability giant slewing bearing part contour |
| CN107621232A (en) * | 2017-09-08 | 2018-01-23 | 昆山冠品优精密机械有限公司 | 4th axis center bulb height testing tool and the 4th axis center high detection method |
| CN107621232B (en) * | 2017-09-08 | 2024-03-19 | 昆山冠品优精密机械有限公司 | Fourth shaft center height detection tool and fourth shaft center height detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104197876B (en) | 2017-12-15 |
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Effective date of registration: 20201022 Address after: Room 110-827, building 1, town government, 66 Huanhu Road, xiwengzhuang Town, Miyun District, Beijing Patentee after: Beijing rongdahui Technology Development Co., Ltd Address before: 101500 Beijing City, Miyun, ten mile town, Fort village, No. ten West Road, No. 86 Patentee before: BEIJING HIGH-PRECISION TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20220413 Address after: 101599 Shuangjing Industrial Park, Shilibao, Miyun District, Beijing Patentee after: BEIJING HIGH-PRECISION TECHNOLOGY Co.,Ltd. Address before: Room 110-827, building 1, town government, 66 Huanhu Road, xiwengzhuang Town, Miyun District, Beijing Patentee before: Beijing rongdahui Technology Development Co.,Ltd. |
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