CN109708573A - A kind of axial workpiece parameter measurement system and its measurement method - Google Patents
A kind of axial workpiece parameter measurement system and its measurement method Download PDFInfo
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- CN109708573A CN109708573A CN201910038435.8A CN201910038435A CN109708573A CN 109708573 A CN109708573 A CN 109708573A CN 201910038435 A CN201910038435 A CN 201910038435A CN 109708573 A CN109708573 A CN 109708573A
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Abstract
The invention discloses a kind of axial workpiece parameter measurement system and axial workpiece measurement method of parameters, the system comprises: industrial personal computer, hub, image capturing system, kinetic control system and grating scale.The described method includes: judging whether that new axis part type or the selection existing axis part type of system is arranged；Loading axis part；Measurement pattern is selected, parameter measurement, morpheme measurement and radiographic measurement are included；Measurement result is saved, judges that axis part quality to be measured is qualified or not；Continue the same axial workpiece or replacement axial workpiece measurement；Parameter saves, and as a result exports.Advantages of the present invention has: measurement accuracy is high, and measuring speed is fast, and measurement parameter is more, can satisfy the parameter measurement demand to various axial workpiece, can well adapt to turn of the market, have a vast market foreground.
Description
Technical field
The present invention relates to axial workpiece parameter measuring technical fields, particularly relate to a kind of axial workpiece parameter measurement
System and its measurement method.
Background technique
With the development of Shaft, the dimension precision requirement of processing is increasingly stringenter, and product pattern is also increasingly
It is more, it is ensured that product quality just needs frequently to detect shaft part size and various parameters.Since axial workpiece is that machinery is set
Standby core component, so the qualified or not of axial workpiece has great influence to equipment operation.
When to axial workpiece parameter measurement, usually it need to survey that parameter is numerous, and size category is different, and tolerance is different and smart
Degree requires high.Using manual measurement, speed is slow, and error rate is high, and vulnerable to subjective impact；Instrument, phase are examined using linear array scanning profile shaft
Machine is expensive, at high cost, and splicing precision is related with servo motion positioning accuracy；Using image measurer, measurement parameter is few, and price is high
Expensive non-parallel backlight, edge blurry cannot obtain part general image, and automated procedures are not high.
Therefore, a kind of measurement accuracy height is designed, measuring speed is fast, and measurement parameter is more, high degree of automation, price material benefit,
It can guarantee the axial workpiece parameter measurement system and its measurement method of axial workpiece Measurement reliability, it is clear that there is positive show
Sincere justice.
Summary of the invention
For existing defect described in axial workpiece parameter measurement techniques existing in background technique, it is an object of the invention to
A kind of measurement accuracy height is provided, measuring speed is fast, and measurement parameter is more, high degree of automation, price material benefit, it is ensured that axis class zero
The axial workpiece parameter measurement system and its measurement method of part Measurement reliability.
To achieve the above object, the technical scheme adopted by the invention is as follows: a kind of axial workpiece parameter measurement system, include work
Control machine, hub, image capturing system, kinetic control system and grating rule displacement sensor；
The industrial personal computer and hub wired connection, for control the bat of kinetic control system mobile image acquisition system take to
Survey the image at each station of axis part；
The hub respectively with image capturing system, kinetic control system and grating rule displacement sensor wired connection,
For realizing the communication of industrial personal computer and image capturing system, kinetic control system and grating rule displacement sensor；
Described image acquisition system is arranged on kinetic control system, for absorbing the image at each station of axis part to be measured
And it is transferred to industrial personal computer；
The kinetic control system is arranged on the support frame, for controlling image capturing system and grating rule displacement sensor
It is mobile；
The grating rule displacement sensor is connect with image capturing system and support frame respectively, for recording Image Acquisition system
Moving distance of uniting and axis part axial length to be measured.
In above-mentioned parameter measuring system, described image acquisition system includes industrial camera and collimated backlight with telecentric lens
Source, in axis part to be measured side, the collimated backlight source is arranged in axis zero to be measured for the industrial camera setting with telecentric lens
The part other side, the industrial camera with telecentric lens is parallel with collimated backlight source opposite and is respectively positioned on kinetic control system.
In above-mentioned parameter measuring system, the kinetic control system include lifting cylinder, sliding shoe, fixed block, guide rail and
Movement arm；
The lifting cylinder is arranged at the top of support frame and is connect by its piston rod with the sliding shoe；
The sliding shoe is slidably arranged on the guide rail upper end, and the guide rail is fixed on front side of support frame as described above, described
Sliding shoe is vertically slid by the impetus of lifting cylinder along guide rail is upper on front side of support frame back and forth；
The fixed block is arranged in the guide rail lower part and is fixedly connected with support frame as described above；
The sliding shoe and corresponding cooperation above and below the fixed block, for fixing axis part to be measured；
Connect and be crossed on the left and right sides of support frame on rear side of the movement arm and support frame as described above, the movement arm along
It is vertically slid back and forth on rear side of support frame；
The industrial camera with telecentric lens is arranged in described movement arm one end, and the collimated backlight is arranged in the other end
Source.
In above-mentioned parameter measuring system, the kinetic control system include lifting cylinder, sliding shoe, fixed block, guide rail and
Movement arm；
The lifting cylinder setting is connect in support frame one end and by its piston rod with the sliding shoe；
The sliding shoe is slidably arranged on described guide rail one end, and the guide rail is fixed at the top of support frame as described above, described
By the impetus of lifting cylinder, along guide rail, the upper level at the top of support frame slides sliding shoe back and forth；
The fixed block is arranged in the guide rail other end and is fixedly connected with support frame as described above；
Sliding shoe cooperation corresponding with the fixed block or so, for fixing axis part to be measured；
The movement arm connect with support frame as described above bottom and is crossed on the front and rear sides of support frame, the movement arm along
Support frame top horizontal slides back and forth；
The industrial camera with telecentric lens is arranged in described movement arm one end, and the collimated backlight is arranged in the other end
Source.
In above-mentioned parameter measuring system, the grating scale displacement sensing is also set up in the support frame side for being equipped with industrial camera
Device；
The grating reading head of the grating rule displacement sensor is fixed on the support frame side ipsilateral with industrial camera, institute
The scale grating for stating grating rule displacement sensor is fixed on industrial camera.
In above-mentioned parameter measuring system, the station is arranged in the changed position of axis part section diameter to be measured.
The present invention also provides it is a kind of using axial workpiece parameter measurement system carry out axial workpiece parameter measurement method,
It comprises the following steps:
Step 1 judges whether that new axis part type or the selection existing axis part type of system is arranged as needed；
If when the axis part type for thering is and measurement type identical as axis part to be measured to set in step 2, measuring system,
New axis part type that then no setting is required need to only have in the axis part type set from system, select and axis part to be measured
After the axis part type to match, subsequent parameter measurement or morpheme measurement or radiographic measurement can be carried out；
If axis part class not identical as axis part to be measured and that measurement type has been set in step 3, measuring system
It when type, then needs first to carry out new axis part type setting, then carries out subsequent parameter measurement or morpheme measurement again or image is surveyed
Amount；
Step 4, the setting of new axis part type: identical as axis part to be measured and parameter known axes part is as reference using one
New axis part type setting is carried out, the specific steps of which are as follows:
4.1) new axis part station is set: and parameter known axes part section diameter identical as axis part to be measured is become
The each position changed is set as measurement station；
4.2) it claps the station image taken at each station: kinetic control system mobile image acquisition system is controlled by industrial personal computer
The station image at each station that bat takes parameter known axes part to set in 4.1)；
4.3) known axes that get parms part integrity profile image: the parameter known axes part that bat is got by industrial personal computer
Station image at each station is spliced, and the integrity profile image of parameter known axes part is obtained；
4.4) measurement task is arranged: the parameter type measured as needed sets corresponding measurement task；
4.5) parameter measurement obtains measurement data and is simultaneously stored in database: according to the measurement task set in step 4.4),
Parameter measurement, the known axes that get parms part are carried out to the integrity profile image of the parameter known axes part obtained in step 4.3)
The measured parameter under the corresponding measurement task respectively set, and be saved in database, measured parameter known axes zero
The parameter of part can be used as reference, for subsequent judgement and the axis part to be measured of the parameter known axes part same type quality whether
Qualification operation；
4.6) new axis part type is saved；Keep setting in the station set in step 4.1), step 4.4)
The parameter obtained in good measurement task and step 4.5)；
Step 5, system initialization load axis part to be measured: by the industrial personal computer in measuring system, image capturing system, fortune
Autocontrol system and grating rule displacement sensor carry out initialization adjusting, and then axis part to be measured is loaded on support frame,
And in kinetic control system sliding shoe and fixed block axis part to be measured is positioned；
Step 6, selected measurement pattern, start to measure；
The measurement pattern includes parameter measurement, morpheme measurement and three kinds of radiographic measurement；
6.1) parameter measurement mode, the specific operation process is as follows:
6.1.1 the axis part type to match with axis part to be measured) is selected；
6.1.2) according to axis part type selected in step 6.1.1), the station at each station of axis part to be measured is obtained
Image；
6.1.3 image mosaic) is completed to each station image of the axis part to be measured obtained in step 6.1.2) by industrial personal computer,
Obtain the integrity profile figure of axis part to be measured；
6.1.4) according to axis part type selected in step 6.1.1), corresponding measurement task is selected, is completed to be measured
Parameter measurement operation of the axis part under selected corresponding measurement task, and parameter measurements are stored in database；
6.1.4) by the parameter measurements and selected axis part class of the axis part to be measured obtained in step 6.1.4)
The standard parameter that type has been set in advance in systems compares, and judges that the axis part to be measured is surveyed under this parameter measurement mode
Whether each parameter obtained is qualified；
6.2) morpheme measurement pattern, the specific operation process is as follows:
6.2.1 the axis part type to match with axis part to be measured) is selected；
6.2.2) controlling kinetic control system by industrial personal computer drives the industrial camera in image capturing system mobile, rotation
Axis part to be measured；
6.2.3 the concentricity and radial pulsation measurement of axis part to be measured) are carried out；
6.2.4 the concentricity and circular runout parameter of axis part to be measured) are obtained, and is saved in database；
6.2.5) by the concentricity of the axis part to be measured obtained in step 6.2.4) and circular runout parameter with it is selected
The good standard concentricity and circular runout parameter that axis part type has been set in advance in systems compare, and judge the axis to be measured
Whether part concentricity and circular runout parameter measured under this morpheme measurement pattern be qualified；
6.3) radiographic measurement mode, the specific operation process is as follows:
6.3.1 the axis part type to match with axis part to be measured) is selected；
6.3.2) controlling kinetic control system by industrial personal computer drives the industrial camera in image capturing system mobile, intake
Axis part image to be measured, and grating rule displacement sensor is combined, measure the axial length of axis part to be measured；
6.3.4 the axial length parameter of axis part to be measured) is obtained, and is saved in database；
6.3.5) by the axial length parameter and selected axis part class of the axis part to be measured obtained in step 6.3.4)
The standard axial direction length parameter that type has been set in advance in systems compares, and judges the axis part to be measured in radiographic measurement mode
Whether lower measured axial length parameter is qualified；
Step 7 continues to measure the same axial workpiece or replace axial workpiece to measure；
If continue to measure the same axial workpiece, return step 6；
If replacement axial workpiece measures, return step 1；
Step 8, measurement terminate, and parameter output, be as a result put in storage: all parameters can save into Excel table, are stored in number
According to library, underproof parameter can be labeled as red.
In above-mentioned measurement method, in step 4.4), the task type of measurement task includes shaft diameter, straight chamfering, circular arc
Radius, two included angle of straight line, vertical line midpoint to vertical line midpoint axial dimension, arc to vertical line midpoint of axial dimension, line line intersection point
Line intersection point is to the axial dimension at vertical line midpoint, the axial dimension of line line intersection point to line line intersection point, line line intersection point to line line intersection point
Radial dimension, the axial dimension of line line intersection point to camber line intersection point, the radial dimension of line line intersection point to camber line intersection point, camber line intersection point arrive
Axial dimension, the camber line intersection point to the radial dimension of camber line intersection point, Major Diam, the pitch diameter of thread, diameter of thread, spiral shell of camber line intersection point
Line screw pitch, form of thread angle and step height.
In above-mentioned measurement method, step 6.1.1), step 6.2.1) and step 6.3.1) in, it is described with axis part phase to be measured
Matched axis part type is the new axis part type or the existing axis part type of system of oneself setting in step 2.
In above-mentioned measurement method, in step 4.3), the detailed process of the known axes that get parms part integrity profile image is such as
Under:
(1) station image of the parameter known axes part at the 0th station is read；
(2) station image of the parameter known axes part adjacent with the 0th station at the 1st station is read in；
(3) calculate whether the 0th station is overlapped with the station image of the 1st station adjacent；
If station is overlapped, overlapping positions are calculated, then overlapping display: covering image at the 0th station at the 1st station
Then image carries out tiled display；
If station is not overlapped, a rectangular block is first created, it is the 0th station or the 1st that the rectangular block, which is then zoomed to width,
The width of image at station, the interval between a length of two station, then carry out tiled display；
(4) continue to read in the station image of the parameter known axes part adjacent with the 1st station at the 2nd station, and according to
The mode of step (3) to (5), the station image mosaic and spliced image for completing the 2nd station and the 1st station are shown；
(5), in the way of step (4), continue at subsequent 3rd station, at the 4th station ... and
Station image mosaic at N station obtains complete axis parts profile figure, and is stored in industrial personal computer, and wherein N is the integer of > 0.
Compared with prior art, the beneficial effects of the present invention are:
(1) use can be taken by the image capturing system that the industrial camera with telecentric lens and collimated backlight source are constituted
High quality graphic gets clearly axial workpiece profile diagram, can increase substantially the precision of axial workpiece parameter measurement；
(2) this measuring system, it is complete for the axial workpiece parameter of measurement, it can satisfy to various axial workpiece
Parameter measurement demand can well adapt to turn of the market, have a vast market foreground；
(3) this measuring system, small volume are readily transported and place, and can be answered with effectively save space occupied suitable for promoting
With；
(4) this measuring system, it is main to carry out data analysis, image procossing, strong applicability, convenient for adjusting using the image obtained
Trimming changes.
Detailed description of the invention
Fig. 1 is the first embodiment of axial workpiece parameter measurement system of the present invention；
Fig. 2 is second of embodiment of axial workpiece parameter measurement system of the present invention；
Fig. 3 is the flow chart that axial workpiece parameter measurement is carried out using axial workpiece parameter measurement system of the present invention；
When Fig. 4 is carries out the measurement of axis Parameters of The Parts using measuring system in Fig. 2, certain used axis part embodiment to be measured
Floor map；
Fig. 5 is in the Fig. 4 taken using image capturing system in measuring system in Fig. 2 at certain each station of axis part to be measured
Parts profile figure；
Fig. 6 be using industrial personal computer in Fig. 2 at the 0th station in Fig. 5 with the 1st station at station figure spliced obtained by
The spliced map one arrived；
Fig. 7 is using industrial personal computer in Fig. 2 to obtained spliced map one in the station figure and Fig. 6 at the 2nd station in Fig. 5
It carries out splicing obtained spliced map two；
Fig. 8 is using industrial personal computer in Fig. 2 to obtained spliced map two in the station figure and Fig. 7 at the 3rd station in Fig. 5
It carries out splicing obtained spliced map three；
Fig. 9 is using industrial personal computer in Fig. 2 to obtained spliced map three in the station figure and Fig. 8 at the 4th station in Fig. 5
It carries out splicing obtained spliced map four；
In figure: 1, industrial personal computer；2, hub；3, image capturing system；3.1, industrial camera；3.2, collimated backlight source；4,
Kinetic control system；4.1, lifting cylinder；4.2, sliding shoe；4.3, fixed block；4.4, guide rail；4.5, movement arm；5, grating scale
Displacement sensor；5.1, grating reading head；5.2, scale grating；6, axis part to be measured；7, support frame；
Dotted line of the Fig. 6 into Fig. 9 indicates that station is overlapped position；Rectangle filling block indicates that station is not overlapped position.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
The drawings and specific embodiments, how the present invention is further explained implements.
As shown in fig.1, a kind of axial workpiece parameter measurement system of this practical new offer, includes industrial personal computer 1, hub
2, image capturing system 3, kinetic control system 4 and grating rule displacement sensor 5；Wherein:
Industrial personal computer 1 and 2 wired connection of hub, for control the bat of 4 mobile image acquisition system 3 of kinetic control system take to
Survey the image at each station of axis part 6；
Hub 2 respectively with 5 wired connection of image capturing system 3, kinetic control system 4 and grating rule displacement sensor,
For realizing the communication of industrial personal computer 1 and image capturing system 3, kinetic control system (4) and grating rule displacement sensor 5；
Image capturing system 3 is arranged on kinetic control system 4, for absorbing the image at each station of axis part 6 to be measured
And it is transferred to industrial personal computer 1；
Kinetic control system 4 is arranged on support frame 7, for controlling image capturing system 3 and grating rule displacement sensor 5
It is mobile；
Grating rule displacement sensor 5 is connect with image capturing system 3 and support frame 7 respectively, for recording Image Acquisition system
1 moving distance of uniting and 6 axial length of axis part to be measured.
As a kind of preference of the invention:
As shown in Figure 1, image capturing system 3, kinetic control system 4, grating rule displacement sensor 5 and support frame 7 can be with
In vertical setting；Wherein:
Image capturing system 3 includes the industrial camera 3.1 with telecentric lens and collimated backlight source 3.2, with telecentric lens
The setting of industrial camera 3.1 is in 6 side of axis part to be measured, and the setting of collimated backlight source 3.2 is in 6 other side of axis part to be measured, band telecentricity
The industrial camera 3.1 of camera lens is parallel with collimated backlight source 3.2 opposite and is respectively positioned on kinetic control system 4.
Kinetic control system 4 includes lifting cylinder 4.1, sliding shoe 4.2, fixed block 4.3, guide rail 4.4 and movement arm 4.5；
Wherein:
The setting of lifting cylinder 4.1 is connect at 7 top of support frame and by its piston rod 4.1a with sliding shoe 4.2；Sliding shoe
4.2 are slidably arranged in and state on 4.4 upper end of guide rail, and guide rail 4.4 is fixed on 7 front side of support frame, and sliding shoe 4.2 passes through lifting cylinder
4.1 impetus vertically slides back and forth along guide rail 4.4 is upper on front side of support frame 7；
Fixed block 4.3 is arranged in 4.4 lower part of guide rail and is fixedly connected with support frame 7, opposite with about 4.2 sliding shoe
It should cooperate, for axis part 6 to be measured to be fixed before parameter measurement；
The left and right sides of support frame 7 is connected and is crossed on rear side of movement arm 4.5 and support frame 7；When work, movement arm 4.5
It is vertically slid back and forth along 7 rear side of support frame；
The industrial camera 3.1 with telecentric lens is arranged in 4.5 left end of movement arm, and collimated backlight source 3.2 is arranged in right end；Work
Industry camera 3.1 and collimated backlight source 3.2 vertically slide back and forth along support frame 7 under the movement of movement arm 4.5, complete to treat
Survey the image taking acquisition at each station of axis part 6.
Grating rule displacement sensor 5 is also set up on the left of the support frame 7 for being equipped with industrial camera 3.1；Wherein, grating scale position
The grating reading head 5.1 of displacement sensor 5 be fixed on on 7 left side of support frame, the scale grating of grating rule displacement sensor 5
5.2 are fixed on industrial camera 3.1.
Another variation as the first preference of the invention:
As shown in Fig. 2, image capturing system 3, kinetic control system 4, grating rule displacement sensor 5 and support frame 7 may be used also
To be in horizontal setting；Wherein:
The lifting cylinder 4.1 of kinetic control system 4 is horizontally set on 7 left end of support frame and by its piston rod 4.1a and cunning
Motion block 4.2 connects；
Sliding shoe 4.2 is slidably arranged on 4.4 left end of guide rail, and guide rail 4.4 is fixed on 7 top of support frame, and sliding shoe 4.2 is logical
The impetus for crossing lifting cylinder 4.1 slides back and forth along guide rail 4.4 is above horizontal at the top of support frame 7；
Fixed block 4.3 is arranged in 4.4 right end of guide rail and is fixedly connected with support frame 7, opposite in left and right with sliding shoe 4.2
It should cooperate, for axis part 6 to be measured to be fixed before parameter measurement；
Movement arm 4.5 connect with 7 bottom of support frame and is crossed on the front and rear sides of support frame 7；When work, movement arm 4.5
It is slid back and forth along 7 top horizontal of support frame；
The industrial camera 3.1 with telecentric lens is arranged in 4.5 front end of movement arm, and collimated backlight source 3.2 is arranged in rear end.
Grating rule displacement sensor 5 is also set up on front side of the support frame 7 for being equipped with industrial camera 3.1；Wherein, grating scale position
The grating reading head 5.1 of displacement sensor 5 be fixed on on 7 leading flank of support frame, the scale grating of grating rule displacement sensor 5
5.2 are fixed on industrial camera 3.1.
In addition, set station, usually sets when to axis part 6 to be measured progress image taking according to parameter amount needs
It sets in the changed position of 6 diameter of section of axis part to be measured.
As shown in figure 3, the present invention also provides use above-mentioned axial workpiece parameter measurement system to carry out axial workpiece parameter
The method of measurement, comprises the following steps:
Step 1 judges whether that new axis part type or the selection existing axis part type of system is arranged as needed；
If when the axis part type for thering is and measurement type identical as axis part to be measured to set in step 2, measuring system,
New axis part type that then no setting is required need to only have in the axis part type set from system, select and axis part to be measured
After the axis part type to match, subsequent parameter measurement or morpheme measurement or radiographic measurement can be carried out；
If axis part class not identical as axis part to be measured and that measurement type has been set in step 3, measuring system
It when type, then needs first to carry out new axis part type setting, then carries out subsequent parameter measurement or morpheme measurement again or image is surveyed
Amount；
Step 4, the setting of new axis part type: identical as axis part to be measured and parameter known axes part is as reference using one
New axis part type setting is carried out, the specific steps of which are as follows:
4.1) new axis part station is set: and parameter known axes part section diameter identical as axis part to be measured is become
The each position changed is set as measurement station；
4.2) it claps the station image taken at each station: kinetic control system mobile image acquisition system is controlled by industrial personal computer
The station image at each station that bat takes parameter known axes part to set in 4.1)；
4.3) known axes that get parms part integrity profile image: the parameter known axes part that bat is got by industrial personal computer
Station image at each station is spliced, and the integrity profile image of parameter known axes part is obtained；
4.4) measurement task is arranged: the parameter type measured as needed sets corresponding measurement task；
4.5) parameter measurement obtains measurement data and is simultaneously stored in database: according to the measurement task set in step 4.4),
Parameter measurement, the known axes that get parms part are carried out to the integrity profile image of the parameter known axes part obtained in step 4.3)
Measured parameter under the corresponding measurement task respectively set, and be saved in database, measured parameter known axes
The parameter of part can be used as reference, be for subsequent judgement and the quality of the axis part to be measured of the parameter known axes part same type
No qualified operation；
4.6) new axis part type is saved；Keep setting in the station set in step 4.1), step 4.4)
The parameter obtained in good measurement task and step 4.5)；
Step 5, system initialization load axis part to be measured: by the industrial personal computer in measuring system, image capturing system, fortune
Autocontrol system and grating rule displacement sensor carry out initialization adjusting, and then axis part to be measured is loaded on support frame,
And in kinetic control system sliding shoe and fixed block axis part to be measured is positioned；
Step 6, selected measurement pattern, start to measure；
The measurement pattern includes parameter measurement, morpheme measurement and three kinds of radiographic measurement；
6.1) parameter measurement mode, the specific operation process is as follows:
6.1.1 the axis part type to match with axis part to be measured) is selected；
6.1.2) according to axis part type selected in step 6.1.1), the station at each station of axis part to be measured is obtained
Image；
6.1.3 image mosaic) is completed to each station image of the axis part to be measured obtained in step 6.1.2) by industrial personal computer,
Obtain the integrity profile figure of axis part to be measured；
6.1.4) according to axis part type selected in step 6.1.1), corresponding measurement task is selected, is completed to be measured
Parameter measurement operation of the axis part under selected corresponding measurement task, and parameter measurements are stored in database；
6.1.4) by the parameter measurements and selected axis part class of the axis part to be measured obtained in step 6.1.4)
The standard parameter that type has been set in advance in systems compares, and judges that the axis part to be measured is surveyed under this parameter measurement mode
Whether each parameter obtained is qualified；
6.2) morpheme measurement pattern, the specific operation process is as follows:
6.2.1 the axis part type to match with axis part to be measured) is selected；
6.2.2) mobile by the industrial camera in industrial personal computer control kinetic control system drive image capturing system；
6.2.3 the concentricity and radial pulsation measurement of axis part to be measured) are carried out；
6.2.4 the concentricity and circular runout parameter of axis part to be measured) are obtained, and is saved in database；
6.2.5) by the concentricity of the axis part to be measured obtained in step 6.2.4) and circular runout parameter with it is selected
The good standard concentricity and circular runout parameter that axis part type has been set in advance in systems compare, and judge the axis to be measured
Whether part concentricity and circular runout parameter measured under this morpheme measurement pattern be qualified；
6.3) radiographic measurement mode, the specific operation process is as follows:
6.3.1 the axis part type to match with axis part to be measured) is selected；
6.3.2) controlling kinetic control system by industrial personal computer drives the industrial camera in image capturing system mobile, intake
Axis part image to be measured, and grating scale is combined, measure the axial length of axis part to be measured；
6.3.4 the axial length parameter of axis part to be measured) is obtained, and is saved in database；
6.3.5) by the axial length parameter and selected axis part class of the axis part to be measured obtained in step 6.3.4)
The standard axial direction length parameter that type has been set in advance in systems compares, and judges the axis part to be measured in radiographic measurement mode
Whether lower measured axial length parameter is qualified；
Step 7 continues to measure the same axial workpiece or replace axial workpiece to measure；
If continue to measure the same axial workpiece, return step 6；
If replacement axial workpiece measures, return step 1；
Step 8, measurement terminate, and parameter output, be as a result put in storage: all parameters can save into Excel table, are stored in number
According to library, underproof parameter can be labeled as red.
Above-mentioned Parameters of The Parts measurement method: in step 4.4), the task type of measurement task includes shaft diameter, directly falls
Angle, arc radius, two included angle of straight line, the axial dimension at vertical line midpoint to vertical line midpoint, line line intersection point to vertical line midpoint axial direction
Size, the axial dimension of camber line intersection point to vertical line midpoint, the axial dimension of line line intersection point to line line intersection point, line line intersection point to line line
Radial dimension, the camber line to camber line intersection point of axial dimension, line line intersection point of the radial dimension of intersection point, line line intersection point to camber line intersection point
Axial dimension, camber line intersection point to the radial dimension of camber line intersection point, Major Diam, the pitch diameter of thread, screw thread of the intersection point to camber line intersection point
Path, thread pitch, form of thread angle and step height.
Above-mentioned Parameters of The Parts measurement method: in step 5.1), step 6.1) and step 7.1), match with axis part to be measured
Axis part type be step 2 in oneself setting new axis part type or the existing axis part type of system.
Above-mentioned Parameters of The Parts measurement method: in step 4.3), the known axes that get parms part integrity profile image it is specific
Process is as follows:
(1) station image of the parameter known axes part at the 0th station is read；
(2) station image of the parameter known axes part adjacent with the 0th station at the 1st station is read in；
(3) calculate whether the 0th station is overlapped with the station image of the 1st station adjacent；
If station is overlapped, overlapping positions are calculated, then overlapping display: covering image at the 0th station at the 1st station
Then image carries out tiled display；
If station is not overlapped, a rectangular block is first created, it is the 0th station or the 1st that the rectangular block, which is then zoomed to width,
The width of image at station, the interval between a length of two station, then carry out tiled display；
(4) continue to read in the station image of the parameter known axes part adjacent with the 1st station at the 2nd station, and according to
The mode of step (3) to (5), the station image mosaic and spliced image for completing the 2nd station and the 1st station are shown；
(5), in the way of step (4), continue at subsequent 3rd station, at the 4th station ... and
Station image mosaic at N station obtains complete axis parts profile figure, and is stored in industrial personal computer, and wherein N is the integer of > 0.
Combined with specific embodiments below, illustrate that axial workpiece parameter measurement system of the present invention is how to realize axial workpiece
The method of parameter measurement, it includes the following two kinds test situations:
The first test situation: had in axial workpiece parameter measurement system identical as axis part to be measured and set
The axis part type set then need to only be selected and axis part phase to be measured from the existing axis part type of system in this case
After matched axis part type, subsequent parameter measurement or morpheme measurement or radiographic measurement can be carried out；
Second of test situation: not identical as axis part to be measured i.e. in axial workpiece parameter measurement system and be arranged
Good axis part type then needs first to carry out new axis part type setting, then carries out subsequent parameter survey again in this case
Amount or morpheme measurement or radiographic measurement；
The step of above two test situation, is largely identical, unique difference only more than second of test situation together
Step needs first to carry out new axis part type setting.
Below by taking second of test situation as an example, introduces axial workpiece parameter measurement system and parameter survey is carried out to axial workpiece
The process of amount:
(1) be switched on, open axial workpiece parameter measurement system, by one it is identical as axis part 6 (as shown in Figure 4) to be measured and
The reference that parameter known axes part is set as new axis part type, is loaded in axial workpiece parameter measurement system, sets
Corresponding measurement type, and the part type of setting is kept (including the station set, the measurement task set and profile
Image)；
It (2) will be upper at the top of support frame 7 that axis part 6 to be measured is loaded into axial workpiece parameter measurement system and use sliding shoe
4.2 fix axis part 6 to be measured with fixed block 4.3, as shown in Figure 4；
(3) controlling kinetic control system 4 by industrial personal computer 1 drives image capturing system 3 mobile, claps take axis zero to be measured respectively
Station image a, b of the part 6 at the 0th station A, the 1st station B, the 2nd station C, the 3rd station D, the 4th station E this five stations, c,
D, e, as shown in Figure 5；(wherein, the 0th station A, the 1st station B, the 2nd station C, the 3rd station D, at the 4th station E this five stations
It is that carry out the setting of new axis part type in front be to have set, when carrying out subsequent similar axis parts measurement to be measured, nothing
Station need to be reset, after having selected axis part type, can directly be applied)
(4) axis part 6 to be measured is read in station image a, b of the 0th station A and the 1st station B by industrial personal computer 1, and calculated
The registration of station image a, b of 0th station A and the 1st station B out；
(5) according to the registration being calculated in step (4), by station image a of the axis part 6 to be measured at the 0th station A
Spliced with the station image b at the 1st station B, obtains stitching image 1 as shown in Fig. 6；
(6) continue to read station image c of the axis part 6 to be measured at the 2nd station C by industrial personal computer 1, and calculate the 2nd
The registration of the station image b at station image c and the 1st station B at station C；
(7) according to the registration being calculated in step (6), by station image c of the axis part 6 to be measured at the 2nd station C
Spliced with the stitching image 601 obtained in step (5), obtains stitching image 2 602 as shown in Figure 7；
(8) continue to read station image d of the axis part 6 to be measured at the 3rd station D by industrial personal computer 1, and calculate the 3rd
The registration of the station image b at station image d and the 2nd station B at station D；
(9) according to the registration being calculated in step (8), by station image d of the axis part 6 to be measured at the 3rd station D
Spliced with the stitching image 602 obtained in step (7), obtains stitching image 3 603 as shown in Figure 8；
(10) continue to read station image e of the axis part 6 to be measured at the 4th station E by industrial personal computer 1, and calculate the 4th
The registration of the station image c at station image e and the 3rd station C at station E；
(11) according to the registration being calculated in step (10), by station figure of the axis part 6 to be measured at the 4th station E
Picture e and the middle stitching image 603 obtained of step (9) are spliced, and stitching image 4 604 as shown in Figure 9, the spliced map are obtained
Picture 4 604 is the complete axis parts profile figure of axis part 6 to be measured；
(12) the integrity profile image of the axis part 6 got according to (11), selects corresponding measurement task, completes the survey
Parameter measurement operation under amount task, and measurement result is stored in database；
(13) standard axle zero known to the similar parameter kept in 6 parameter of axis part to be measured and system will be measured in (12)
The parameter of part compares, and judges whether 6 mass of axis part to be measured is qualified.
Finally illustrate, the above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all
Using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is applied directly or indirectly in other
Relevant technical field, is included within the scope of the present invention.
Claims (10)
1. a kind of axial workpiece parameter measurement system, it is characterised in that: it includes industrial personal computer (1), hub (2), Image Acquisition
System (3), kinetic control system (4) and grating rule displacement sensor (5)；
The industrial personal computer (1) and hub (2) wired connection, for controlling kinetic control system (4) mobile image acquisition system
(3) image taken at each station of axis part (6) to be measured is clapped；
The hub (2) has with image capturing system (3), kinetic control system (4) and grating rule displacement sensor (5) respectively
Line connection, for realizing industrial personal computer (1) and image capturing system (3), kinetic control system (4) and grating rule displacement sensor
(5) communication；
Described image acquisition system (3) is arranged on kinetic control system (4), for absorbing at each station of axis part (6) to be measured
Image and be transferred to industrial personal computer (1)；
The kinetic control system (4) is arranged on support frame (7), for controlling image capturing system (3) and grating scale displacement
Sensor (5) is mobile；
The grating rule displacement sensor (5) connect with image capturing system (3) and support frame (7) respectively, for recording image
Acquisition system (1) moving distance and axis part to be measured (6) axial length.
2. axial workpiece parameter measurement system according to claim 1, it is characterised in that: described image acquisition system (3)
Comprising the industrial camera (3.1) with telecentric lens and collimated backlight source (3.2), the industrial camera (3.1) with telecentric lens
Setting is arranged in axis part (6) side to be measured, the collimated backlight source (3.2) in axis part (6) other side to be measured, and the band is remote
The industrial camera (3.1) of heart camera lens is parallel with collimated backlight source (3.2) opposite and is respectively positioned on kinetic control system (4).
3. axial workpiece parameter measurement system according to claim 2, it is characterised in that: the kinetic control system (4)
Include lifting cylinder (4.1), sliding shoe (4.2), fixed block (4.3), guide rail (4.4) and movement arm (4.5)；
Lifting cylinder (4.1) setting is at the top of support frame (7) and passes through its piston rod (4.1a) and the sliding shoe (4.2)
Connection；
The sliding shoe (4.2) is slidably arranged on the guide rail (4.4) upper end, and the guide rail (4.4) is fixed on the support
On front side of frame (7), the sliding shoe (4.2) is by the impetus of lifting cylinder (4.1) along guide rail (4.4) in support frame (7)
It is vertically slid back and forth on front side；
The fixed block (4.3) is arranged in the guide rail (4.4) lower part and is fixedly connected with support frame as described above (7)；
The sliding shoe (4.2) and the fixed block (4.3) corresponding cooperation up and down, for fixing axis part (6) to be measured；
The left and right sides of support frame (7) is connect and is crossed on rear side of the movement arm (4.5) and support frame as described above (7)；When work,
Movement arm (4.5) vertically slides back and forth along support frame (7) rear side；
The industrial camera (3.1) with telecentric lens is arranged in described movement arm (4.5) one end, and the other end is arranged described flat
Row backlight (3.2).
4. axial workpiece parameter measurement system according to claim 2, it is characterised in that: the kinetic control system (4)
Include lifting cylinder (4.1), sliding shoe (4.2), fixed block (4.3), guide rail (4.4) and movement arm (4.5)；
Lifting cylinder (4.1) setting is in support frame (7) one end and passes through its piston rod (4.1a) and the sliding shoe (4.2)
Connection；
The sliding shoe (4.2) is slidably arranged on the guide rail (4.4) one end, and the guide rail (4.4) is fixed on the support
At the top of frame (7), the sliding shoe (4.2) is by the impetus of lifting cylinder (4.1) along guide rail (4.4) in support frame (7)
It is horizontal on top to slide back and forth；
The fixed block (4.3) is arranged in the guide rail (4.4) other end and is fixedly connected with support frame as described above (7)；
Sliding shoe (4.2) cooperation corresponding with the fixed block (4.3) left and right, for fixing axis part (6) to be measured；
The movement arm (4.5) connect with support frame as described above (7) bottom and is crossed on the front and rear sides of support frame (7)；When work,
Movement arm (4.5) slides back and forth along support frame (7) top horizontal；
The industrial camera (3.1) with telecentric lens is arranged in described movement arm (4.5) one end, and the other end is arranged described flat
Row backlight (3.2).
5. axial workpiece parameter measurement system according to claim 3 or 4, it is characterised in that: be equipped with industrial camera
(3.1) support frame (7) side also sets up the grating rule displacement sensor (5)；
The grating reading head (5.1) of the grating rule displacement sensor (5) is fixed on and industrial camera (3.1) ipsilateral support frame
(7) on side, the scale grating (5.2) of the grating rule displacement sensor (5) is fixed on industrial camera (3.1).
6. axial workpiece parameter measurement system according to claim 1, it is characterised in that: the station is arranged in axis to be measured
Part (6) changed position of diameter of section.
7. carrying out axial workpiece parameter measurement using such as axial workpiece parameter measurement system as claimed in any one of claims 1 to 6
Method, it is characterised in that: comprise the following steps:
Step 1 judges whether that new axis part type or the selection existing axis part type of system is arranged as needed；
If when the axis part type for thering is and measurement type identical as axis part to be measured to set in step 2, measuring system, nothing
New axis part type need to be set, need to only be had in the axis part type set from system, selected and axis part phase to be measured
After the axis part type matched, subsequent parameter measurement or morpheme measurement or radiographic measurement can be carried out；
If in step 3, measuring system when axis part type not identical as axis part to be measured and that measurement type has been set,
It then needs first to carry out new axis part type setting, then carries out subsequent parameter measurement or morpheme measurement or radiographic measurement again；
Step 4, new axis part type setting: using one with axis part to be measured identical and parameter known axes part as reference progress
New axis part type setting, the specific steps of which are as follows:
4.1) new axis part station is set: will and parameter known axes part section diameter identical as axis part to be measured it is changed
Each position is set as measurement station；
4.2) it claps the station image taken at each station: the bat of kinetic control system mobile image acquisition system being controlled by industrial personal computer and is taken
The station image at each station that parameter known axes part has been set in 4.1)；
4.3) known axes that get parms part integrity profile image: each work of parameter known axes part that bat is got by industrial personal computer
Station image at position is spliced, and the integrity profile image of parameter known axes part is obtained；
4.4) measurement task is arranged: the parameter type measured as needed sets corresponding measurement task；
4.5) parameter measurement obtains measurement data and is stored in database: according to the measurement task set in step 4.4), to step
The integrity profile image of rapid 4.3) the middle parameter known axes part obtained carries out parameter measurement, and the known axes that get parms part is each
Measured parameter under the corresponding measurement task set, and be saved in database, measured parameter known axes part
Whether parameter can be used as reference, qualified with the quality of the axis part to be measured of the parameter known axes part same type for subsequent judgement
Operation；
4.6) new axis part type is saved；It keeps the station set in step 4.1), set in step 4.4)
The parameter obtained in measurement task and step 4.5)；
Step 5, system initialization load axis part to be measured: the industrial personal computer in measuring system, image capturing system, movement are controlled
System processed and grating rule displacement sensor carry out initialization adjusting, and then axis part to be measured is loaded on support frame, is used in combination
Axis part to be measured is positioned in sliding shoe and fixed block in kinetic control system；
Step 6, selected measurement pattern, start to measure；
The measurement pattern includes parameter measurement, morpheme measurement and three kinds of radiographic measurement；
6.1) parameter measurement mode, the specific operation process is as follows:
6.1.1 the axis part type to match with axis part to be measured) is selected；
6.1.2) according to axis part type selected in step 6.1.1), the station figure at each station of axis part to be measured is obtained
Picture；
6.1.3 image mosaic) is completed to each station image of the axis part to be measured obtained in step 6.1.2) by industrial personal computer, is obtained
The integrity profile figure of axis part to be measured；
6.1.4) according to axis part type selected in step 6.1.1), corresponding measurement task is selected, completes axis zero to be measured
Parameter measurement operation of the part under selected corresponding measurement task, and parameter measurements are stored in database；
6.1.4) parameter measurements of the axis part to be measured obtained in step 6.1.4) and selected axis part type are existed
The standard parameter that has set compares in advance in system, judges that the axis part to be measured is measured under this parameter measurement mode
Whether each parameter is qualified；
6.2) morpheme measurement pattern, the specific operation process is as follows:
6.2.1 the axis part type to match with axis part to be measured) is selected；
6.2.2) controlling kinetic control system by industrial personal computer drives the industrial camera in image capturing system mobile, and rotate to
Survey axis part；
6.2.3 the concentricity and radial pulsation measurement of axis part to be measured) are carried out；
6.2.4 the concentricity and circular runout parameter of axis part to be measured) are obtained, and is saved in database；
6.2.5) by the concentricity of the axis part to be measured obtained in step 6.2.4) and circular runout parameter and selected axis zero
The good standard concentricity and circular runout parameter that part type has been set in advance in systems compare, and judge the axis part to be measured
Whether measured concentricity and circular runout parameter are qualified under this morpheme measurement pattern；
6.3) radiographic measurement mode, the specific operation process is as follows:
6.3.1 the axis part type to match with axis part to be measured) is selected；
6.3.2) controlling kinetic control system by industrial personal computer drives the industrial camera in image capturing system mobile, absorbs to be measured
Axis part image, and grating rule displacement sensor is combined, measure the axial length of axis part to be measured；
6.3.4 the axial length parameter of axis part to be measured) is obtained, and is saved in database；
6.3.5) the axial length parameter of the axis part to be measured obtained in step 6.3.4) and selected axis part type are existed
The standard axial direction length parameter set in advance in system compares, and judges axis part to be measured institute under radiographic measurement mode
Whether the axial length parameter measured is qualified；
Step 7 continues to measure the same axial workpiece or replace axial workpiece to measure；
If continue to measure the same axial workpiece, return step 6；
If replacement axial workpiece measures, return step 1；
Step 8, measurement terminate, and parameter output, be as a result put in storage: all parameters can save into Excel table, are stored in database,
Underproof parameter can be labeled as red.
8. axial workpiece measurement method of parameters according to claim 7, it is characterised in that: in step 4.4), measurement task
Task type include shaft diameter, straight chamfering, arc radius, two included angle of straight line, vertical line midpoint to vertical line midpoint axial ruler
Very little, line line intersection point is handed over to the axial dimension at vertical line midpoint, the axial dimension of camber line intersection point to vertical line midpoint, line line intersection point to line line
Axial dimension, the radial dimension of line line intersection point to line line intersection point, the axial dimension of line line intersection point to camber line intersection point, the line line of point are handed over
Radial direction of the point to the radial dimension of camber line intersection point, the axial dimension of camber line intersection point to camber line intersection point, camber line intersection point to camber line intersection point
Size, Major Diam, the pitch diameter of thread, diameter of thread, thread pitch, form of thread angle and step height.
9. axial workpiece measurement method of parameters according to claim 7, it is characterised in that: step 6.1.1), step
6.2.1) and step 6.3.1) in, the axis part type to match with axis part to be measured be step 2 in oneself setting it is new
Axis part type or the existing axis part type of system.
10. axial workpiece measurement method of parameters according to claim 7, it is characterised in that: in step 4.3), get parms
Detailed process is as follows for known axes part integrity profile image:
(1) station image of the parameter known axes part at the 0th station is read；
(2) station image of the parameter known axes part adjacent with the 0th station at the 1st station is read in；
(3) calculate whether the 0th station is overlapped with the station image of the 1st station adjacent；
If station is overlapped, overlapping positions are calculated, then overlapping display: image at the 0th station being covered into figure at the 1st station
Then picture carries out tiled display；
If station is not overlapped, a rectangular block is first created, it is the 0th station or the 1st station that the rectangular block, which is then zoomed to width,
Locate the width of image, the interval between a length of two station, then carries out tiled display；
(4) continue to read in station image of the parameter known axes part adjacent with the 1st station at the 2nd station, and according to step
(3) to the mode of (5), the station image mosaic and spliced image for completing the 2nd station and the 1st station are shown；
(5), in the way of step (4), continue at subsequent 3rd station, at the 4th station ... and N work
Station image mosaic at position, obtains complete axis parts profile figure, and be stored in industrial personal computer, and wherein N is the integer of > 0.
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| CN111517107A (en) * | 2020-07-02 | 2020-08-11 | 南京宇众自动化装备有限公司 | Shaft part measuring system and shaft part supply device thereof |
| CN112058691A (en) * | 2020-10-10 | 2020-12-11 | 湖北中烟工业有限责任公司 | Quality control method of sectional type filter stick based on CCD imaging technology |
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