CN204128522U - A kind of contact air bearing gauge head - Google Patents
A kind of contact air bearing gauge head Download PDFInfo
- Publication number
- CN204128522U CN204128522U CN201420484999.7U CN201420484999U CN204128522U CN 204128522 U CN204128522 U CN 204128522U CN 201420484999 U CN201420484999 U CN 201420484999U CN 204128522 U CN204128522 U CN 204128522U
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- CN
- China
- Prior art keywords
- air
- bearing
- sounding rod
- gauge head
- counterweight
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- Withdrawn - After Issue
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a kind of contact air bearing gauge head, comprise installing plate, air-bearing shafts, sounding rod assembly, oscillating bar assembly and grating scale, air-bearing shafts fixedly mounts on a mounting board by air-bearing, air-bearing shafts is installed with sounding rod assembly and oscillating bar assembly, sounding rod assembly comprises sounding rod body and gauge head, gauge head is fixedly mounted on sounding rod body, sounding rod body is fixedly mounted on air-bearing shafts, oscillating bar assembly comprises fork, fork is fixedly mounted on air-bearing shafts, the scale grating of grating scale is fixedly mounted on fork, the grating reading head fixed installation of grating scale on a mounting board.This device can realize the high-acruracy survey to measured object.
Description
Technical field
The utility model relates to parts detection field, particularly relates to a kind of contact air bearing gauge head being applied to non-spherical measuring instrument.
Background technology
Current, have a variety of to the detection method of part, be mainly divided into contact type measurement and non-contact measurement.Contact type measurement mainly by contourgraph or three-coordinates measuring machine by carrying out the measurement of multiple discrete point to optical element, then 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 shape, size, and the precision requirement of modern precision machine tool to parts is high, require higher accordingly to high-accuracy detection technique; Often adopt non-spherical measuring instrument for the Aspherical-surface testing 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 affecting 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.
Utility model content
The utility model object is to provide the contact air bearing gauge head that a kind of structure is simple, accuracy of detection is high.
The utility model technical solution problem 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 fixedly mounts on a mounting board by air-bearing, described air-bearing shafts is installed with sounding rod assembly and oscillating bar assembly, the described sounding rod assembly rotating torque acted 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 fixed installation of described grating scale on a mounting board, described oscillating bar assembly and the scale grating rotating torque acted on air-bearing shafts is zero.
Optionally, the surface that described fork installs 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 first counterweight is fixed on the other end of sounding rod body.
Optionally, described first counterweight is cylindrical, and the end face of described first counterweight has been threaded connection adjusting bolt, the axis of the screw rod of described adjusting bolt and the axis out of plumb of sounding rod body.
Optionally, the axis of described first counterweight and the dead in line of sounding rod body, the angle of the axis of the screw rod of described adjusting bolt and the axis of 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 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 second counterweight is positioned at the rear side of installing plate.
Optionally, described second counterweight comprises counterweight part and installation portion, and the shape of described counterweight part is semi-cylindrical, and described installation portion is fixedly connected on the plane surface of counterweight part, and described installation portion is fixedly set on air-bearing shafts.
Optionally, described installing plate offers pore, described pore is communicated with the air intake opening of air-bearing.
The utility model 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 change of the circular arc of measured object is passed to air-bearing shafts, air-bearing shafts drives fork to swing, then by signal transmission to grating reading head, complete measurement.Because air-bearing shafts fixedly mounts on a mounting board by air-bearing, air-bearing produces gas mould and is floated by air-bearing shafts, air-bearing shafts ease rotation can be realized, without friction, non-resistance, precision measurement is carried out by grating, complete the measurement to measured object, therefore, this device can realize the high-acruracy survey to measured object.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of contact air bearing gauge head of the utility model;
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-first counterweight; 33-adjusting bolt; 40-fork; 41-scale grating; 42-grating reading head; 43-connecting rod; 44-second counterweight; 45-counterweight part; 46-installation portion; 47-plane surface.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
Embodiment 1
As shown in Figure 1 and Figure 2, present embodiments provide a kind of contact air bearing gauge head, comprise 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, offers pore in the present embodiment on installing plate 10, and pore is communicated with the air intake opening of air-bearing 21, thinks air-bearing 21 air feed.Air-bearing shafts 20 is installed with sounding rod assembly and oscillating bar assembly, the sounding rod assembly rotating torque acted 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, through after air-bearing shafts 20, is fixed 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.Oscillating bar assembly and scale grating 41 rotating torque acted 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 gauge head 31 and the measured object surface contact of sounding rod assembly, the change of the circular arc of measured object is passed to air-bearing shafts 20, air-bearing shafts 20 is nothing friction, unresisted rotation in air-bearing 21, thus air-bearing shafts 20 drives fork 40 to swing, fork 40 drives the scale grating 41 on it to rotate, then by signal transmission to grating reading head 42, complete measurement.
In order to mention the precision of measurement further, in the present embodiment, fork 40 installs the surface of scale grating 41 is arc surface, 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.
In order to increase the length that sounding rod stretches out from air-bearing shafts 20 side, 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 utility model, the gauge head in sounding rod assembly can use different models.Be zero in order to make sounding rod assembly relative to the torque of air supported head, in the present embodiment, first counterweight 32 is cylindrical, and the end face of the first counterweight 32 has been threaded connection adjusting bolt 33, the axis of the screw rod of adjusting bolt 33 and the axis out of plumb of sounding rod body 30.Being screwed into the degree of depth of the first counterweight 32 by changing adjusting bolt 33, just can changing its torque relative to air-bearing shafts 20, thus adapting to dissimilar gauge head.In the present embodiment, the preferably axis of the first counterweight 32 and the dead in line of sounding rod body 30, the angle of the axis of the screw rod of adjusting bolt 33 and the axis of 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.Second counterweight 44 comprises counterweight part 45 and installation portion 46, and the shape of counterweight part 45 is semi-cylindrical, and installation portion 46 is fixedly connected on the plane surface 47 of counterweight part 45, and 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, can realize the high-accuracy measurement to the parts and aspheric optical lens with aspherical shape by grating.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
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), (20) are installed with sounding rod assembly and oscillating bar assembly to described air-bearing shafts, the described sounding rod assembly rotating torque acted 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), described oscillating bar assembly and scale grating (41) rotating torque acted on air-bearing shafts (20) are 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) installs 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 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 first counterweight (32) is cylindrical, the end face of described first counterweight (32) is threaded connection adjusting bolt (33), the axis of the screw rod of described adjusting bolt (33) and the axis out of plumb of sounding rod body (30).
5. a kind of contact air bearing gauge head according to claim 4, it is characterized in that, the axis of described first counterweight (32) and the dead in line of sounding rod body (30), the angle of the axis of the screw rod of described adjusting bolt (33) and the axis of 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), described fork (40) is fixedly mounted on air-bearing shafts (20) by connecting rod (43), and described 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 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 second counterweight (44) comprises counterweight part (45) and installation portion (46), the shape of described counterweight part (45) is semi-cylindrical, 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, (10) offer pore to described installing plate, and described pore is communicated with the air intake opening of air-bearing (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484999.7U CN204128522U (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 |
|---|---|---|---|
| CN201420484999.7U CN204128522U (en) | 2014-08-26 | 2014-08-26 | A kind of contact air bearing gauge head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204128522U true CN204128522U (en) | 2015-01-28 |
Family
ID=52384871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484999.7U Withdrawn - After Issue CN204128522U (en) | 2014-08-26 | 2014-08-26 | A kind of contact air bearing gauge head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204128522U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197876A (en) * | 2014-08-26 | 2014-12-10 | 北京海普瑞森科技发展有限公司 | Contact type air flotation measuring head |
| CN112033329A (en) * | 2020-08-14 | 2020-12-04 | 东风汽车集团有限公司 | Measuring mechanism for simultaneously measuring inner hole and plane |
-
2014
- 2014-08-26 CN CN201420484999.7U patent/CN204128522U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197876A (en) * | 2014-08-26 | 2014-12-10 | 北京海普瑞森科技发展有限公司 | Contact type air flotation measuring head |
| CN104197876B (en) * | 2014-08-26 | 2017-12-15 | 北京海普瑞森科技发展有限公司 | A kind of contact air bearing gauge head |
| CN112033329A (en) * | 2020-08-14 | 2020-12-04 | 东风汽车集团有限公司 | Measuring mechanism for simultaneously measuring inner hole and plane |
| CN112033329B (en) * | 2020-08-14 | 2021-07-06 | 东风汽车集团有限公司 | Measuring mechanism for simultaneously measuring inner hole and plane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150128 Effective date of abandoning: 20171215 |
|
| AV01 | Patent right actively abandoned |