CN208398816U - Super-large diameter revolving body caliper matched with profile camera - Google Patents
Super-large diameter revolving body caliper matched with profile camera Download PDFInfo
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- CN208398816U CN208398816U CN201821053699.8U CN201821053699U CN208398816U CN 208398816 U CN208398816 U CN 208398816U CN 201821053699 U CN201821053699 U CN 201821053699U CN 208398816 U CN208398816 U CN 208398816U
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Abstract
The utility model relates to high-precision contactless workpiece calibration field, especially a kind of super-large diameter revolving body caliper to match with profile camera.Aim to solve the problem that the non-contact measurement measurement accuracy of workpiece in the prior art is low, the problem of measuring device stability difference.The utility model includes two side stands and the mobile device across the bracket, at least 2 sections of V-type fixed frames are installed in mobile device, measured revolving body workpieces are installed on V-type fixed frame, the top surface of V-type fixed frame is the face A, the maximum cross section that revolving body workpieces are parallel to the face A is the face B, and B is higher than A；The corresponding two sides for being mounted on the bracket of sliding translation platform, profile camera are mounted on the sliding translation platform, and the measuring cell for measuring the profile camera to spacing between specified fixing end is also equipped on sliding translation platform.Advantage is: can eliminate workpiece inclination and location error, realize the precise measurement of large-diameter workpiece overall diameter.
Description
Technical field
The utility model relates to high-precision contactless workpiece calibration fields, especially a kind of mating with profile camera
Super-large diameter revolving body caliper.
Background technique
Non-contact measurement refers to do not contact testee under the premise of accurately measured.Its measurement accuracy can achieve
μm contactless caliper then cooperates XYZ axis mobile platform and autozoom using the image of sample under CCD acquisition varifocal mirror
Mirror carries out accurate geometric data to research and production part by computer disposal video signal with image analysing computer principle
Measurement, and the analysis of CPK numerical value can be carried out.In field of industrial manufacturing, it is related to the non-contact diameter of many large revolving body workpiece
Measurement, such as the major diameter tubing with insulating layer, cot with big diameter, major diameter silicon rod, optical fiber female rod etc..
Currently, the non-cpntact measurement of these workpiece generally uses correlation laser scanning method and laser displacement sensor method.
And technical staff has found these detection methods that there are the following problems:
Correlation laser scanning method two groups of laser scanners and receiver, volume is larger, when workpiece axially movable when,
The bearing support of workpiece can block laser scanning beam or collision scanner；
Laser displacement sensor method is the distance that two opposite sensors measure workpiece surface respectively, when the axis of sensor
When line is not overlapped with the diameter line of workpiece, very big measurement error can be generated, the error is such as reduced and sensor is needed to make mechanical fortune
Dynamic, measuring speed substantially reduces.
Utility model content
The purpose of this utility model is exactly in the prior art various in order to solve the problems, such as, provides a kind of and profile camera
Matched super-large diameter revolving body caliper realizes the non-contact measurement of high-precision super-large diameter revolving body workpieces.
The concrete scheme of the utility model is:
Design a kind of super-large diameter revolving body caliper matched with profile camera, including two side stands and described in passing through
The mobile device of bracket is equipped at least 2 sections of V-type fixed frames in the mobile device, and installation is measured on the V-type fixed frame
Revolving body workpieces, the top surface of the V-type fixed frame is the face A, and the revolving body workpieces are parallel to the maximum cross section in the face A
For the face B, B is higher than A；
The corresponding two sides for being mounted on the bracket of sliding translation platform, the profile camera are mounted on the sliding translation platform
On, the measuring cell for measuring the profile camera to spacing between specified fixing end is also equipped on the sliding translation platform,
The light source output end of the profile camera exports parallel light source.
At least two profile cameras are installed on the sliding translation platform of every unilateral side.
The V-type fixed frame is polygon prism-frustum-shaped, and thickness is less than 50cm, and upper surface includes a pair of symmetrically arranged oblique
Face is made of rubber or cork.
The sliding translation platform includes the vertical lift platform being slidably mounted on the bracket in the vertical direction, described to hang down
It is slidably fitted with flexible slide unit in the horizontal direction on straight lifting platform, the profile camera is mounted on the another of the flexible slide unit
End, is respectively provided with power source between the bracket and the vertical lift platform, between the vertical lift platform and the flexible slide unit
To drive prismatic pair to connect, using the outer ledge of the bracket as fixing end, the measuring cell includes being mounted on described stretch
The grating measuring device of profile camera Yu the fixing end spacing is measured on slide unit.
The contactless caliper is connected with controller remotely with input measurement data, and the output end of the controller connects
Display device is connected to export measurement result.
A kind of non-contact revolving body measurement method being designed into, includes the following steps:
(1) it installs: being symmetrically installed profile camera in the two sides of the displacement path of measured workpiece, while specifying two sides
Fixing end, the distance member between profile camera and fixing end between installation measurement the two, measured workpiece guarantee when installing
Its center line height is corresponding with the measurement of profile camera height；
(2) ranging: measured workpiece, relative to the profile camera movement, is being tested with the speed less than 5km/ hours
While measuring workpiece movement, the profile camera of two sides measures its distance G1, G2 between measured workpiece, distance member measurement
Profile camera distance L1, L2 between fixing end, distance is D0 between the fixing end of two sides, measures the diameter of measured workpiece
D=(D0-L1-L2-G1-G2)。
Above-mentioned non-contact revolving body measurement method is symmetrically installed two pairs of profiles in the two sides of the displacement path of measured workpiece
Camera, the spacing of each pair of profile camera are L0, and L0 is greater than 25cm, and corresponding increase after step (2) step (3) calculate
Compensate diameter:
The practical axis of workpiece and × axis inclination angle in the horizontal direction are calculated first: with a pair of profile camera and admittedly
Distance L11, L12 between fixed end, distance G11, G12 between measured workpiece, profile camera (5) described in another pair and fixed
Distance L21, L22 between end, distance G21, G22 between measured workpiece,
Obtain deviation angle,
Instantaneously, single pair profile camera measures diameter D1=D0-L11-L12-G11-G12, D2=D0-L21-L22-G21-
G22
It takes the average value of D1, D2 and obtains diameter after compensating workpiece obliquity effects:
D=(D1+D2)/2*COS θ.
The utility model has the beneficial effects that:
Different from the design of traditional sensors, the light source of scattering is evaded, has replaced with source of parallel light, detection source of parallel light is defeated
Nearest light out determines that distance, precision are high；
Simultaneously the measuring system solve the problems, such as the non-cpntact measurement of large-diameter revolving body workpiece outer diameter, eliminate it is one-dimensional away from
From center sensor line and diameter of work line non-overlapping problem and measurement error caused by workpiece inclination is eliminated, it is specific super
The contactless caliper of large-diameter revolving body workpiece realizes that super-large diameter rotary type workpiece quick and precisely survey by continuous outer diameter
Amount, meanwhile, the mounting design of multiple groups sensor, the case where further contemplating the error being likely to occur in measurement process, calculates
Error inclination angle out, output result are further superimposed compensation error, improve output accuracy；
The fixation of realization to workpiece in the form of multiple spot is fixed of the V-type fixed frame of support, workpiece good fixing effect,
What fitted position guaranteed measurement is the diameter of workpiece, and measurement is accurate, while it is by having the material of certain elasticity to be made, can be to prevent
Only colliding influences workpiece surface precision bring
With the connection of control system, the automation of measurement method may be implemented by the plug-in of control system, measure
In the process, workpiece, which is placed on the vehicle of traveling, passes through bracket, so that it may intuitively see measurement result on a display screen, save people
Work.
Detailed description of the invention
Fig. 1 is the perspective view of caliper overall structure in the utility model；
Fig. 2 is the main view of caliper overall structure in the utility model；
Fig. 3 is the left view of caliper overall structure in the utility model；
Fig. 4 is the top view of caliper overall structure in the utility model；
Fig. 5 is schematic illustration in measurement process in the utility model；
Fig. 6 is schematic illustration in measurement process in another state of the utility model；
Mobile device is omitted in Fig. 1；
The names of the parts in figure: 1. measured workpieces；2. bracket；3. V-type fixed frame；4. mobile device；5. profile is taken a picture
Machine；6. being vertically moved up or down platform；7. flexible slide unit.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
A kind of profile camera 5, referring to Fig. 1 to Fig. 6, including two side stands 2 and across the mobile device 4 of the bracket 2,
At least 2 sections of V-type fixed frames 3 are installed in the mobile device 4, measured revolving body work is installed on the V-type fixed frame 3
Part, the top surface of the V-type fixed frame 3 are the face A, and the maximum cross section that the revolving body workpieces are parallel to the face A is the face B, B high
In A；
The corresponding two sides for being mounted on the bracket 2 of sliding translation platform, the profile camera 5 are mounted on the sliding translation
On platform, it is also equipped on the sliding translation platform and measures the measuring cell that the profile camera 5 arrives spacing between specified fixing end,
The light source output end of the profile camera exports source of parallel light.
At least two profile cameras 5 are installed on the sliding translation platform of every unilateral side.In order to when offset be into
Row compensation data.
The V-type fixed frame 3 is polygon prism-frustum-shaped, and thickness is less than 50cm, and upper surface includes a pair of symmetrically arranged
Inclined-plane is made of rubber or cork.
The sliding translation platform includes the vertical lift platform 6 being slidably mounted on the bracket 2 in the vertical direction, described
It is slidably fitted with flexible slide unit 7 in the horizontal direction on vertical lift platform 6, the profile camera 5 is mounted on the flexible slide unit 7
The other end, between the bracket 2 and the vertical lift platform 6, each between the vertical lift platform 6 and the flexible slide unit 7
Equipped with power source to drive prismatic pair to connect, using the outer ledge of the bracket 2 as fixing end, the measuring cell includes installation
The grating measuring device of profile camera 5 Yu the fixing end spacing is measured on the flexible slide unit 7.
The contactless caliper is connected with controller remotely with input measurement data, and the output end of the controller connects
Display device is connected to export measurement result.
A kind of non-contact revolving body measurement method being designed into, includes the following steps:
(1) it installs: being symmetrically installed profile camera in the two sides of the displacement path of measured workpiece, while specifying two sides
Fixing end, the distance member between profile camera and fixing end between installation measurement the two, measured workpiece guarantee when installing
Its center line height is corresponding with the measurement of profile camera height；
(2) ranging: measured workpiece, relative to the profile camera movement, is being tested with the speed less than 5km/ hours
While measuring workpiece movement, the profile camera of two sides measures its distance G1, G2 between measured workpiece, distance member measurement
Profile camera distance L1, L2 between fixing end, distance is D0 between the fixing end of two sides, measures the diameter of measured workpiece
D=(D0-L1-L2-G1-G2)。
Above-mentioned non-contact revolving body measurement method is symmetrically installed two pairs of profiles in the two sides of the displacement path of measured workpiece
Camera, the spacing of each pair of profile camera are L0, and L0 is greater than 25cm, and corresponding increase after step (2) step (3) calculate
Compensate diameter:
The practical axis of workpiece and × axis inclination angle in the horizontal direction are calculated first: with a pair of profile camera and admittedly
Distance L11, L12 between fixed end, distance G11, G12 between measured workpiece, profile camera (5) described in another pair and fixed
Distance L21, L22 between end, distance G21, G22 between measured workpiece,
Obtain deviation angle,
Instantaneously, single pair profile camera measures diameter D1=D0-L11-L12-G11-G12, D2=D0-L21-L22-G21-
G22
It takes the average value of D1, D2 and obtains diameter after compensating workpiece obliquity effects:
D=(D1+D2)/2*COS θ.
The covering of the fan laser beam merging of laser output is collimated light beam by the profile camera, everywhere light intensity angle phase
Together, keep measurement result more accurate.The video camera is equipped with sensing element with each light in measuring beam from starting point to eventually
The minimum distance of point, input background control system are calculated, and obtain real-time dimension data.
The measurement and compensation of the tilt angle, primary concern is that the inclination of horizontal plane, because of the inclination on vertical direction,
As long as measurement result is unaffected in the stroke range of measurement.
In the course of work, after the positioning of measured workpiece 1 is fixed, sensor is set with other during slow transitting through bracket 2
Standby binding assay immediately arrives at the size of measured workpiece 1, and measurement accuracy is high, while zero will not occur in measurement process
Part collides with, i.e., will not generate abrasion to workpiece itself because of measurement.
Embodiment 2: the present embodiment principle with embodiment 1, it is specific the difference is that: profile camera and its measurement method
It can be applied to turner part side fields of measurement, parallel light source is projected in the cylinder surface of workpiece, the measurement of profile camera
Whether the outer diameter for being turned on workpiece is qualified.
Embodiment 3: the present embodiment principle with embodiment 1, it is specific the difference is that: can also be using tested in measurement
Measure the situation that workpiece is motionless, and measurement bay moves.
Embodiment 4: the present embodiment principle with embodiment 1, it is specific the difference is that: parallel light source includes laser
Device and a piece of special-shaped concavees lens successively installed from light beam penetration direction and a piece of convex lens, special-shaped concavees lens are cuboid
Shape, the one side for closing on convex lens is concave surface, and the focus of the abnormity concavees lens and the convex lens coincides, along the convex lens
The outer diameter of mirror installs cylindrical lens frame, and special-shaped concavees lens are mounted in the lens bracket 8.The present embodiment has expanded this equipment pair
The limitation of light source.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of super-large diameter revolving body caliper matched with profile camera, it is characterised in that: including two side stands (2) and
Mobile device (4) across the bracket (2) is equipped at least 2 sections of V-type fixed frames (3), the V on the mobile device (4)
Measured revolving body workpieces are installed, the top surface of the V-type fixed frame (3) is the face A, the revolving body work on type fixed frame (3)
The maximum cross section that part is parallel to the face A is the face B, and B is higher than A；
The corresponding two sides for being mounted on the bracket (2) of sliding translation platform, the profile camera (5) are mounted on the sliding translation
On platform, it is also equipped on the sliding translation platform and measures the measurement member that the profile camera (5) arrives spacing between specified fixing end
Part,
The light source output end of the profile camera exports parallel light source.
2. super-large diameter revolving body caliper matched with profile camera as described in claim 1, it is characterised in that: every list
At least two profile cameras (5) are installed on the sliding translation platform of side.
3. super-large diameter revolving body caliper matched with profile camera as described in claim 1, it is characterised in that: described
V-type fixed frame (3) is polygon prism-frustum-shaped, and upper surface includes a pair of symmetrically arranged inclined-plane, is made of rubber or cork.
4. super-large diameter revolving body caliper matched with profile camera as described in claim 1, it is characterised in that: described
Sliding translation platform includes the vertical lift platform (6) being slidably mounted on the bracket (2) in the vertical direction, the vertical lift
It is slidably fitted in the horizontal direction on platform (6) flexible slide unit (7), the profile camera (5) is mounted on the flexible slide unit (7)
The other end, between the bracket (2) and the vertical lift platform (6), in the vertical lift platform (6) and the flexible slide unit
(7) power source is respectively provided between to drive prismatic pair to connect, using the outer ledge of the bracket (2) as fixing end, the measurement is first
Part includes being mounted on the grating measuring device that profile camera (5) Yu the fixing end spacing are measured on the flexible slide unit (7).
5. super-large diameter revolving body caliper matched with profile camera as described in claim 1, it is characterised in that: described
Parallel light source includes laser generator and a piece of special-shaped concavees lens (9) successively installed from light beam penetration direction and a piece of convex
Lens (10), the abnormity concavees lens (9) are cuboid, and the one side for closing on convex lens (10) is concave surface, and the abnormity is recessed
Lens (9) and the focus of the convex lens (10) coincide, and the outer diameter along the convex lens (10) installs cylindrical lens frame
(8), the special-shaped concavees lens (9) are mounted in the lens bracket (8).
6. super-large diameter revolving body caliper matched with profile camera as described in claim 1, it is characterised in that: super large
Diameter revolving body caliper is connected with controller remotely with input measurement data, and the output end of the controller is connected with display dress
It sets to export measurement result.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821053699.8U CN208398816U (en) | 2018-07-04 | 2018-07-04 | Super-large diameter revolving body caliper matched with profile camera |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821053699.8U CN208398816U (en) | 2018-07-04 | 2018-07-04 | Super-large diameter revolving body caliper matched with profile camera |
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| CN208398816U true CN208398816U (en) | 2019-01-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060021A (en) * | 2019-12-30 | 2020-04-24 | 江苏万力机械股份有限公司 | Efficient measuring device and measuring method for outer diameter of multi-cylinder crankshaft |
| CN114252041A (en) * | 2020-09-21 | 2022-03-29 | 宝山钢铁股份有限公司 | Non-contact type on-line measuring method for outer diameter of steel pipe end |
-
2018
- 2018-07-04 CN CN201821053699.8U patent/CN208398816U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060021A (en) * | 2019-12-30 | 2020-04-24 | 江苏万力机械股份有限公司 | Efficient measuring device and measuring method for outer diameter of multi-cylinder crankshaft |
| CN114252041A (en) * | 2020-09-21 | 2022-03-29 | 宝山钢铁股份有限公司 | Non-contact type on-line measuring method for outer diameter of steel pipe end |
| CN114252041B (en) * | 2020-09-21 | 2024-02-13 | 宝山钢铁股份有限公司 | Non-contact online measuring method for outer diameter of pipe end of steel pipe |
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