CN205482790U - Contact type air flotation measuring head - Google Patents
Contact type air flotation measuring head Download PDFInfo
- Publication number
- CN205482790U CN205482790U CN201620032446.7U CN201620032446U CN205482790U CN 205482790 U CN205482790 U CN 205482790U CN 201620032446 U CN201620032446 U CN 201620032446U CN 205482790 U CN205482790 U CN 205482790U
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- CN
- China
- Prior art keywords
- air
- gauge head
- bearing
- bar assembly
- grating
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a contact type air flotation measuring head, including the mounting panel, the air supporting axle, the measuring stick subassembly, the pendulum rod subassembly, counterweight assembly and grating chi, the air supporting axle passes through air bearing fixed mounting on the mounting panel, the epaxial fixed mounting of air supporting has measuring stick subassembly and pendulum rod subassembly, the measuring stick subassembly includes measuring stick body and gauge head, gauge head fixed mounting is on the measuring stick body, fixed mounting is epaxial in air supporting for the measuring stick body, the pendulum rod subassembly includes the pendulum rod, pendulum rod fixed mounting is epaxial in air supporting, the scale grating fixed mounting of grating chi is on the pendulum rod, the grating reading head fixed mounting of grating chi is on the mounting panel. The high precision measurement to the measured object can be realized to this device.
Description
Technical field
This utility model relates to parts detection field, particularly relates to a kind of be applied to connecing of non-spherical measuring instrument
Touch air bearing gauge head.
Background technology
Currently, the detection method of part is had a variety of, is broadly divided into contact type measurement and non-contact measurement.
Contact type measurement is mainly multiple discrete by carrying out optical element by contourograph or three-coordinates measuring machine
The measurement of point, is then passed through data and processes, and matching obtains face shape error.Non-contact measurement mainly has shade
Method, laser scanning method, interferometric method etc..
Machine tool parts have various shape, size, and modern precision machine tool is to parts
Precision requirement high, accordingly to high-accuracy detection technique require higher；Aspheric surface for parts
The measurement of detection and aspheric optical lens is frequently with non-spherical measuring instrument, and this measuring instrument is contact type measurement
Instrument.For non-spherical measuring instrument, the principal element affecting its certainty of measurement has the accuracy of detection of gauge head,
If the accuracy of detection of gauge head is relatively low, it will the certainty of measurement of non-spherical measuring instrument is made a big impact.
Utility model content
The contact air bearing gauge head that this utility model purpose is to provide a kind of simple in construction, accuracy of detection is high.
This utility model solves technical problem and adopts the following technical scheme that a kind of contact air bearing gauge head, its bag
Include installing plate, air-bearing shafts, measurement bar assembly, oscillating bar assembly, balance weight assembly and grating scale；
Described air-bearing shafts fixedly mounts on a mounting board by air-bearing, and described air-bearing shafts is installed with
Measure bar assembly, balance weight assembly and oscillating bar assembly；
Described measurement bar assembly includes gauge head installing plate, gauge head mounting blocks, gauge head connector and gauge head, described
After gauge head installing plate passes air-bearing shafts, fixed with air-bearing shafts by bolt；One end of described gauge head connector leads to
Crossing gauge head mounting blocks to be fixed on described gauge head installing plate, the other end of described gauge head connector is fixed with gauge head,
And the axial line of described gauge head connector is vertical with the axial line of described air-bearing shafts, and there is a certain distance；
Described oscillating bar assembly includes that fork, described fork are fixedly mounted on air-bearing shafts, the mark of described grating scale
Chi grating is fixedly mounted on fork, and the grating reading head of described grating scale fixedly mounts on a mounting board；
Described balance weight assembly includes balancing weight, weight linear meter and counterweight nut, and described balancing weight is fixed on described gas
On floating axle, and together rotate with air-bearing shafts；Described balancing weight is fixed in one end of described weight linear meter, and outside it
External screw thread is formed as on surface；Described counterweight nut is rotatablely arranged on described weight linear meter, and with described
The external screw thread threaded engagement of weight linear meter；
Described measurement bar assembly, oscillating bar assembly, balance weight assembly and grating scale act on the rotatory force on air-bearing shafts
Square is zero.
Optionally, it is arc surface that described fork installs the surface of scale grating, and the center of circle of described arc surface is positioned at
On the axis of air-bearing shafts, described scale grating is fitted on described arc surface.
Optionally, described measurement bar assembly is positioned at the rear side of described installing plate；Described oscillating bar assembly is positioned at described
The front side of installing plate, described balance weight assembly is positioned at the front side of described oscillating bar assembly.
Optionally, described installing plate offering pore, described pore connects with the air inlet of air-bearing.
This utility model has the advantages that this device arranges measurement bar assembly and fork on air-bearing shafts
Assembly, the gauge head measuring bar assembly contacts with measured object surface, and the circular arc of measured object changes passing to air supporting
Axle, air-bearing shafts drives fork to swing, then signal is passed to grating reading head, completes to measure.Due to gas
Floating axle fixedly mounts on a mounting board by air-bearing, and air-bearing produces gas mould and floated by air-bearing shafts, can
To realize air-bearing shafts ease rotation, without friction, non-resistance, carry out accurate measurement by grating, complete quilt
Surveying the measurement of thing, therefore, this device is capable of the high-acruracy survey to measured object.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model a kind of contact air bearing gauge head；
Fig. 2 is the sectional view in Fig. 1 along B-B direction；
In figure, labelling is illustrated as: 10-installing plate；20-air-bearing shafts；21-air-bearing；30-gauge head installing plate；
31-gauge head mounting blocks；32-gauge head connector；33-gauge head；34-leaf spring；40-fork；41-scale grating；
42-grating reading head；43-balancing weight；44-weight linear meter；45-counterweight nut.
Detailed description of the invention
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, including installing plate 10,
Air-bearing shafts 20, measurement bar assembly, oscillating bar assembly, balance weight assembly and grating scale.The cross section of installing plate 10 is L
Shape, installing plate 10 is mounted by means of bolts on installing rack, and installing plate 10 is positioned at the front side of installing rack.
Air-bearing shafts 20 is fixedly mounted on installing plate 10, at installing plate in the present embodiment by air-bearing 21
Offering pore on 10, pore connects with the air inlet of air-bearing 21, thinks that air-bearing 21 supplies.
Being installed with measurement bar assembly and oscillating bar assembly on air-bearing shafts 20, described measurement bar assembly includes that gauge head is pacified
Dress plate 30, gauge head mounting blocks 31, gauge head connector 32 and gauge head 33, described gauge head installing plate passes air supporting
After axle 20, fixed, such that it is able to rotate together with air-bearing shafts with air-bearing shafts 20 by bolt；Described gauge head
One end of connector is fixed on described gauge head installing plate by gauge head mounting blocks, described gauge head connector another
One end is fixed with gauge head, and the axial line of described gauge head connector is vertical with the axial line of described air-bearing shafts 20,
And there is a certain distance；Thus realize the measurement to workpiece by described gauge head；In the present embodiment, described
Gauge head connecting rod includes divider, the first gauge head connecting rod, carbon fiber rod and the second gauge head connecting rod；Described survey
Offering V-shaped groove on head installing plate, described divider is positioned at described V-shaped groove, when by described gauge head mounting blocks
When being fixed on described gauge head installing plate, described divider can be fixed on described gauge head mounting blocks and gauge head is installed
Between plate, and between described gauge head mounting blocks and divider, be additionally provided with leaf spring 34, thus realized by leaf spring right
The further clamping of divider.So that divider relies on the V-type on the elastic force of spring leaf and side head installing plate
Three-point mount, it is ensured that the repeatability of dismounting is reliable every time, and has preferable stability after installation,
It is thus possible to change different model easily to measure bar.
The two ends of described first gauge head connecting rod all axially offer counterbore along it, and one end of described divider is inserted
In the counterbore of one end of described first gauge head connecting rod；One end of described carbon fiber rod inserts described first
In the counterbore of the other end of gauge head connecting rod, and the other end of described carbon fiber and described second gauge head connecting rod
Fixing, the most described gauge head is fixed in described second gauge head connecting rod, and preferably, described gauge head hangs down
Straight in described second gauge head connecting rod.
Described oscillating bar assembly includes that fork 40, fork 40 are fixedly mounted on air-bearing shafts 20, the mark of grating scale
Chi grating 41 is fixedly mounted on fork 40, and the grating reading head 42 of grating scale is fixedly mounted on installing plate
On 10, the scale grating 41 of grating scale is corresponding with the position of grating reading head 42.
Described balance weight assembly includes balancing weight 43, weight linear meter 44 and counterweight nut 45, and described balancing weight is fixed
On described air-bearing shafts, and together rotate with air-bearing shafts；Described balancing weight is fixed in one end of described weight linear meter,
And be formed as external screw thread on its outer surface；Described counterweight nut is rotatablely arranged on described weight linear meter, and
External screw thread threaded engagement with described weight linear meter；Such that it is able to regulate described counterweight spiral shell by rotating weight nut
Female distance with described air-bearing shafts；In the present embodiment, the axial line of described weight linear meter and the axle of described air-bearing shafts
Heart line is vertical, and at a distance.
And in the present embodiment, described measurement bar assembly, oscillating bar assembly, balance weight assembly and grating scale act on
Rotating torque on air-bearing shafts 20 is zero, and described oscillating bar assembly is positioned at the front of installing plate 10, and described in join
Restructuring part is positioned at the front of described oscillating bar assembly.
The work process of this device is: contact, the gauge head 31 measuring bar assembly by tested with measured object surface
Thing circular arc change pass to air-bearing shafts 20, air-bearing shafts 20 air-bearing 21 in without rub, unresisted
Rotating, thus air-bearing shafts 20 drives fork 40 to swing, fork 40 drives scale grating 41 thereon to rotate,
Then signal is passed to grating reading head 42, completes to measure.
In order to be further noted that the precision of measurement, in the present embodiment, fork 40 installs the surface of scale grating 41
For arc surface, the center of circle of arc surface is positioned on the axis of air-bearing shafts 20, and scale grating 41 is fitted in described circle
In cambered surface.
This device uses air-bearing shafts to eliminate vibration and the rotation error of air bearing gauge head self, is carried out by grating
Accurate measurement, it is possible to realize having the parts of aspherical shape and the high-accuracy of aspheric optical lens
Measure.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than right
It limits；Although this utility model being described in detail with reference to previous embodiment, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make corresponding skill
The essence of art scheme departs from the spirit and scope of this utility model each embodiment technical scheme.
Claims (4)
1. a contact air bearing gauge head, it is characterised in that include installing plate, air-bearing shafts, measurement bar assembly,
Oscillating bar assembly, balance weight assembly and grating scale；
Described air-bearing shafts fixedly mounts on a mounting board by air-bearing, and described air-bearing shafts is installed with
Measure bar assembly, balance weight assembly and oscillating bar assembly；
Described measurement bar assembly includes gauge head installing plate, gauge head mounting blocks, gauge head connector and gauge head, described
After gauge head installing plate passes air-bearing shafts, fixed with air-bearing shafts by bolt；One end of described gauge head connector leads to
Crossing gauge head mounting blocks to be fixed on described gauge head installing plate, the other end of described gauge head connector is fixed with gauge head,
And the axial line of described gauge head connector is vertical with the axial line of described air-bearing shafts, and there is a certain distance；
Described oscillating bar assembly includes that fork, described fork are fixedly mounted on air-bearing shafts, the mark of described grating scale
Chi grating is fixedly mounted on fork, and the grating reading head of described grating scale fixedly mounts on a mounting board；
Described balance weight assembly includes balancing weight, weight linear meter and counterweight nut, and described balancing weight is fixed on described gas
On floating axle, and together rotate with air-bearing shafts；Described balancing weight is fixed in one end of described weight linear meter, and outside it
External screw thread is formed as on surface；Described counterweight nut is rotatablely arranged on described weight linear meter, and with described
The external screw thread threaded engagement of weight linear meter；
Described measurement bar assembly, oscillating bar assembly, balance weight assembly and grating scale act on the rotatory force on air-bearing shafts
Square is zero.
A kind of contact air bearing gauge head the most according to claim 1, it is characterised in that described fork is pacified
The surface of dress scale grating is arc surface, and the center of circle of described arc surface is positioned on the axis of air-bearing shafts, described mark
Chi grating is fitted on described arc surface.
A kind of contact air bearing gauge head the most according to claim 2, it is characterised in that described measurement bar
Assembly is positioned at the rear side of described installing plate；Described oscillating bar assembly is positioned at the front side of described installing plate, described counterweight
Assembly is positioned at the front side of described oscillating bar assembly.
A kind of contact air bearing gauge head the most according to claim 3, it is characterised in that described installing plate
On offer pore, described pore connects with the air inlet of air-bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032446.7U CN205482790U (en) | 2016-01-13 | 2016-01-13 | Contact type air flotation measuring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032446.7U CN205482790U (en) | 2016-01-13 | 2016-01-13 | Contact type air flotation measuring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205482790U true CN205482790U (en) | 2016-08-17 |
Family
ID=56667744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620032446.7U Expired - Fee Related CN205482790U (en) | 2016-01-13 | 2016-01-13 | Contact type air flotation measuring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205482790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804114A (en) * | 2021-10-11 | 2021-12-17 | 深圳市宝利根精密仪器有限公司 | A linear displacement measuring device |
-
2016
- 2016-01-13 CN CN201620032446.7U patent/CN205482790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804114A (en) * | 2021-10-11 | 2021-12-17 | 深圳市宝利根精密仪器有限公司 | A linear displacement measuring device |
| CN113804114B (en) * | 2021-10-11 | 2025-07-18 | 深圳市宝利根精密仪器有限公司 | Linear displacement measuring device |
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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 |
Granted publication date: 20160817 Termination date: 20190113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |