CN107131829A - A kind of dimensional tolerance detection means and dimensional tolerance detection method - Google Patents
A kind of dimensional tolerance detection means and dimensional tolerance detection method Download PDFInfo
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- CN107131829A CN107131829A CN201710446955.3A CN201710446955A CN107131829A CN 107131829 A CN107131829 A CN 107131829A CN 201710446955 A CN201710446955 A CN 201710446955A CN 107131829 A CN107131829 A CN 107131829A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of dimensional tolerance detection means and dimensional tolerance detection method.Wherein, dimensional tolerance detection means includes plane optical generator, plane optical receiver, transparency carrier, locator and the computer for being loaded with detection program；Due to using plane optical generator, therefore, it is possible to obtain more accurate projection.And when using the detection of dimensional tolerance detection method, setting part against by way of L-shaped part location division, can it is determined that plane coordinate system under, each coordinates regional is distinguished to call detection implementing procedure, so as to realize the accurate measurement to size to be measured, pixel projection figure can be quickly, simply handled very much simultaneously, and realization is more efficiently detected.
Description
Technical field
The present invention relates to Product checking field, and in particular to a kind of dimensional tolerance detection means and dimensional tolerance detection side
Method.
Background technology
Existing metal foil plate parts are mainly used in metal plate, and its size and tolerance are mainly planar dimension requirement.
Certainly, in industry, also some other occasion to the planar dimension of part, it is necessary to detect.In the prior art, under sheet metal component
During material, accessory size and tolerance are mainly detected by slide measure, micrometer etc., efficiency is low, and detection accuracy is low, special
It is not that detection accuracy is lower when facing large scale product.And if detecting the size detecting method of stereo products such as using some
Sonde method etc., detection efficiency is not equally high, spends the time longer.
The content of the invention
It is an object of the invention to solve the problems of the prior art, there is provided a kind of dimensional tolerance detection means and size are public
Difference detection method, raises labour efficiency and accuracy of detection, reduces detection time, further, additionally it is possible to realize to large scale
The accurate detection of product.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of dimensional tolerance detection means, including：Plane optical generator, plane optical receiver, transparency carrier, locator and
It is loaded with the computer of detection program；Described plane optical generator is oppositely arranged with plane optical receiver, and centre is equipped with transparent base
Plate；The light that described transparency carrier is sent perpendicular to plane optical generator；Described transparency carrier is mutual provided with least two
Vertical outer side edges；Described locator includes L-shaped board positioning part and the L-shaped part location division being fixedly secured to one another；It is described
L-shaped board positioning part provided with orthogonal substrate X-axis position inner side edge and substrate Y-axis positioning inner side edge, for supporting respectively
By orthogonal two outer side edges of transparency carrier；Described L-shaped part location division is provided with the positioning of orthogonal part X-axis
Side and part Y-axis positioning inner side edge, for for part outer edge surface against；The described computer for being loaded with detection program is used to locate
Pat image that face optical receiver receives and form parts profile, be additionally operable to measure parts profile and with being manually set
Size and tolerance are compared, and export comparative result.
Further, in addition to base frame, vertical rod and plane optical generator support frame；Described plane optical receiver level is put
In on base frame, transparency carrier is above plane optical receiver；Described plane optical generator support frame is used for supporting plane light
Generator makes its level downward；Described vertical rod is fixedly connected with base frame, for driving plane for plane optical generator support frame
Optical generator is slided up and down.
Further, in addition to light shield and elastic seal ring；Described light shield is fixedly connected on plane optical generator
Lower end；Described elastic seal ring is on base frame and around plane optical receiver；Driving plane optical generator declines along vertical rod,
Described light shield is abutted with elastic seal ring.
In another embodiment, in addition to support unit and driver element；Described support unit and plane optical generator
It is fixedly connected with plane optical receiver；The light that described plane optical generator is sent is perpendicular to horizontal plane；Described driving list
Member is used to drive support unit and drives the peaceful face optical receiver relative transparent substrate-parallel of plane optical generator thereon to move.
Further, in addition to prompting alarm, described prompting alarm is loaded with calculating for detection program by described
Machine is controlled, and prompting or alarm are sent when testing result is unqualified.
Further, in addition to controller, described controller is controlled by the described computer for being loaded with detection program,
Alarm is sent when testing result is unqualified or control driver element shuts down.
Further, after sending alarm when testing result is unqualified, described controller is such as in the time being manually set
Do not receive other instructions of the computer inside, then control driver element to shut down.
A kind of method of detected size tolerance, has used said apparatus, has comprised the following steps：Step 1：By part chi to be measured
Very little and tolerance numerical value inputs COMPUTER DETECTION program；Step 2：Set part against locator L-shaped part location division mode, its
In, straight line where straight line where the part X-axis positioning inner side edge of locator L-shaped part location division and part Y-axis positioning inner side edge
Joining is defined as plane coordinate system origin；Step 3：According to part size to be measured, plane coordinate system is determined in detection program
In the detection implementing procedure that is called of each coordinates regional；Step 4：The substrate X-axis of locator L-shaped board positioning part is positioned into inner side
Side and substrate Y-axis positioning inner side edge bear against two orthogonal outer side edges of transparency carrier；Step 5：Part is placed in
On bright substrate and by step 2 determine against mode be resisted against locator L-shaped part location division part X-axis position inner side edge and
Part Y-axis positions inner side edge；Step 6：Remove locator；Step 7：Control plane optical generator lights；Step 8：Planar light connects
Receive after device receives image and give COMPUTER DETECTION program by image transmission；Step 9：The image that the processing of COMPUTER DETECTION program is received,
Parts profile is formed, and the plane coordinate system origin position determined according to step 2 calculates and stored all pictures on contour line
The coordinate that vegetarian refreshments is fastened in plane coordinates；Step 10：COMPUTER DETECTION program calls correspondence in the coordinates regional that step 3 is determined
Detection implementing procedure detected, formed actual measurement size；Step 11：COMPUTER DETECTION program will be surveyed in size and step 1
The size to be measured and tolerance numerical value of input are compared, and export comparative result.
Further, described detection implementing procedure includes distance detection implementing procedure；Described distance detection instrument journey
Sequence comprises the following steps：Step 3.11：Interface is provided, the first coordinates regional and the second coordinates regional, detection are set for user
Direction and amount detection；Described detection direction can be from parallel to X-direction or parallel to Y direction or using any two picture
Selected in line between plain coordinate a kind of；Step 3.12：It is the to select on the contour line in the first coordinates regional any point
One pixel；Step 3.13：Cross the first pixel make parallel to detection direction straight line and with the profile in the second coordinates regional
Line meets at the second pixel；Step 3.14：Calculate pixel distance between the first pixel point coordinates and the second pixel point coordinates simultaneously
Be converted to long measure distance, as measured distance and store；Step 3.15：Repeat step 3.12 is to step 3.14 until actual measurement
The number of distance reaches the amount detection of setting.
Further, described detection implementing procedure includes segmental arc radius detection implementing procedure；Described segmental arc radius inspection
Implementing procedure is surveyed to comprise the following steps：Step 3.21：Interface is provided, the 3rd coordinates regional and amount detection are set for user；
Step 3.22：Any 3 points are selected on the contour line in the 3rd coordinates regional；Step 3.23：Ask for equidistant with above-mentioned three point coordinates
Pixel coordinate be the 3rd pixel；Step 3.24：It is the 4th to select any point on the contour line in the 3rd coordinates regional
Pixel；Step 3.25：Calculate the pixel distance between the 3rd pixel point coordinates and the 4th pixel point coordinates and be converted to length
Unit distance, as surveys segmental arc radius and stores；Step 3.26：Repeat step 3.22 is to step 3.25 until actual measurement segmental arc half
The number in footpath reaches the amount detection of setting.
Further, described detection implementing procedure includes Pore Diameter Detection implementing procedure；Described Pore Diameter Detection instrument journey
Sequence comprises the following steps：Step 3.31：Interface is provided, 4-coordinate region and amount detection are set for user；Step 3.32：
Any 3 points are selected on the contour line in 4-coordinate region；Step 3.33：Ask for sitting with the equidistant pixel of above-mentioned three point coordinates
It is designated as the 5th pixel；Step 3.34：It is the 6th pixel to select any point on the contour line in 4-coordinate region；Step
Rapid 3.35：Cross the 5th pixel and the 6th pixel make straight line and hands over the contour line in 4-coordinate region in another pixel,
The intersection point is the 7th pixel；Step 3.36：Seek the pixel distance between the 6th pixel point coordinates of calculation and the 7th pixel point coordinates
And long measure distance is converted to, as survey aperture and store；Step 3.37：Repeat step 3.32 is to step 3.36 until real
The number in gaging hole footpath reaches the amount detection of setting.
Further, described detection implementing procedure includes pitch-row detection implementing procedure；Described pitch-row detection instrument journey
Sequence comprises the following steps：Step 3.41：Interface is provided, Five Axis region and the 6th coordinates regional and measurement are set for user
Quantity；Step 3.42：Any 3 points are selected on the contour line in Five Axis region；Step 3.43：Ask for and above-mentioned 3 points seats
The equidistant pixel coordinate of mark is the 8th pixel；Step 3.44：Any 3 points are selected on the contour line in the 6th coordinates regional；Step
Rapid 3.45：It is the 9th pixel to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；Step 3.46：The 8th pixel of calculation is asked to sit
Mark the pixel distance between the 9th pixel point coordinates and be converted to long measure distance, as survey pitch-row and store；Step
3.47：Repeat step 3.42 is to step 3.46 until the number of actual measurement pitch-row reaches the amount detection of setting.
Further, COMPUTER DETECTION program will survey size and enter with the size to be measured and tolerance numerical value that are inputted in step 1
The mode that row compares is as follows：Actual measurement size is compared with corresponding size and tolerance numerical value to be measured, such as actual measurement size is whole
Meet size to be measured and tolerance numerical value, then the size comparative result to be measured is " qualified "；Such as all size comparative results to be measured are equal
For " qualified ", then part to be measured is " qualified "；As long as there is any actual measurement size not meet size to be measured and tolerance numerical value, then this is treated
It is " unqualified " to survey part.
Further, in addition to step 12：It is described after COMPUTER DETECTION program measures part to be measured for " unqualified "
Dimensional tolerance detection means sends prompting alarm or control production line shuts down.
Technical solutions according to the invention are relative to prior art, the beneficial effect of acquirement：
1st, using plane optical generator, plane optical generator can produce the light beam perpendicular to luminous flat, therefore relative to
Spot light, results in more accurate projection.If can be produced extremely as the light source of plane optical generator using laser
Accurate projection.
2nd, locator is used on the basis of transparency carrier determining the origin of coordinates and specification part putting on the transparent substrate
Position, make the processing projected to part more convenient and quick, it is to avoid increasingly complex model and the introducing calculated.
The 3rd, vertical rod and plane optical generator support frame are set, is easy to glide mirror (plane) optical generator, it is ensured that higher projection essence
Exactness.
4th, using light shield, it is to avoid influence of the ambient to projection accuracy.
5th, the peaceful face optical receiver relative transparent substrate-parallel of plane optical generator is driven to move by driver element, can be with
Scanning and detection large-scale part.
When the 6th, detecting, setting part against by way of L-shaped part location division, can it is determined that plane coordinate system
Under, each coordinates regional is distinguished to call detection implementing procedure.
7th, by calling detection implementing procedure in each coordinates regional, to realize the accurate measurement to size to be measured, so may be used
Quickly, simply to handle very much pixel projection figure, more efficiently detected so as to realize.
8th, apart from detection instrument by the coordinates regional perform detection set, so as to simplify the side of distance detection
Method, improves detection efficiency.
9th, segmental arc radius detection implementing procedure, Pore Diameter Detection implementing procedure and pitch-row detection implementing procedure pass through three points centering
Method effectively determines the center of circle.
10th, by setting prompting alarm, prompting can be sent when testing result is unqualified or is alarmed.In order to timely
Accessory size tolerance is controlled, part quality is managed.
11st, by setting controller, realization sends alarm when testing result is unqualified or control driver element stops fortune
Turn, in the case of a part of the support unit for production line, the full inspection to product can be realized, and it is unqualified in testing result
When stop production line in time, it is to avoid there is waste product.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding invention, constitutes the part of the present invention, the present invention
Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of dimensional tolerance detection means embodiment one；
Fig. 2 is another view of dimensional tolerance detection means embodiment one；
Fig. 3 is locator top view；
Fig. 4 is locator front view；
Fig. 5 for Fig. 1 A to partial view；
Fig. 6 is part coordinate region division schematic diagram；
Fig. 7 is the image schematic diagram that plane optical receiver is received；
Fig. 8 is distance detection implementing procedure detection method schematic diagram；
Fig. 9 is that segmental arc radius detects implementing procedure and Pore Diameter Detection implementing procedure detection method schematic diagram；
Figure 10 is that pitch-row detects implementing procedure detection method schematic diagram；
Figure 11 is the schematic top plan view of dimensional tolerance detection means embodiment two
Figure 12 is the schematic front view of dimensional tolerance detection means embodiment two
Embodiment
In order that technical problems, technical solutions and advantages to be solved are clearer, clear, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
As shown in Figures 1 to 5, in dimensional tolerance detection means embodiment one, including plane optical generator 1, planar light hair
Raw device support frame 2, securing member 3, vertical rod 4, base frame 5, transparency carrier 6, plane optical receiver 7, locator 8, light shield 10,
Elastic seal ring 11, the computer and prompting alarm for being loaded with detection program.Wherein, plane optical receiver 7 is horizontally placed at base frame 5
On, transparency carrier 6 is positioned over the top of plane optical receiver 7；The supporting plane optical generator 1 of plane optical generator support frame 2, and make
Its level is relative with plane optical receiver downwards；Vertical rod 5 is fixedly connected with base frame 5, for supplying the band of plane optical generator support frame 2
Dynamic plane optical generator 1 is slided up and down.Securing member 3 is used to fasten vertical rod 5 and plane optical generator support frame 2.Transparent base
Plate 6 is parallel with plane optical receiver 7, and the light sent perpendicular to plane optical generator 1.
Plane optical generator 1 can produce the light beam perpendicular to luminous flat, and the laser that can be sent with laser generator is made
For light source, the light beam perpendicular to luminous flat is produced by planar light modular converter.Using plane optical generator, result in more
For accurate projection.
Transparency carrier 6 is provided with two orthogonal outer side edges, and the L-shaped substrate that locator 8 includes being fixedly secured to one another is determined
Position portion 81 and L-shaped part location division 82；L-shaped board positioning part 81 positions inner side edge 811 and base provided with orthogonal substrate X-axis
Plate Y-axis positions inner side edge 812, for bearing against orthogonal two outer side edges of transparency carrier.L-shaped part location division 82 is set
Have orthogonal part X-axis positioning inner side edge 821 and part Y-axis positioning inner side edge 822, for for the outer edge surface of part 9 against.
Part 9 is placed on transparency carrier 6.Locator 8 is used to determine the origin of coordinates on the basis of transparency carrier 6, and specification part 9 is saturating
Putting position on bright substrate 6, make the processing projected to part more convenient and quick, it is to avoid increasingly complex model and meter
The introducing of calculation.
Light shield 10 is fixedly connected on the lower end of plane optical generator 1；Elastic seal ring 11 is on base frame 5 and around plane
The surrounding of optical receiver 7.After part 9 is in place, locator 8 is taken away, unscrew securing member 3, support plane optical generator
Frame 2 and plane optical generator decline along vertical rod 4, until light shield 10 is abutted with elastic seal ring 11, reach sealing effectiveness.Using
Light shield 10, it is to avoid influence of the ambient to projection accuracy.
Being loaded with the computer of detection program is used to handle the image of plane optical receiver reception and forms parts profile, also uses
Size and tolerance in being measured to parts profile and with being manually set are compared, and export comparative result.
Prompting alarm is controlled by the described computer for being loaded with detection program, and prompting is sent when testing result is unqualified
Or alarm.By setting prompting alarm, prompting can be sent when testing result is unqualified or is alarmed.In order to control in time
Accessory size tolerance, manages part quality.
Embodiment using the method for the dimensional tolerance detection means detected size tolerance in embodiment one is extremely schemed just like Fig. 6
Shown in 10.Comprise the following steps：
Step 1：By part size to be measured and tolerance numerical value input COMPUTER DETECTION program.It is apart from L in the present embodiment
Size and tolerance numerical value, arc radius R dimensional tolerance numerical value, aperture D dimensional tolerance numerical value and pitch-row V dimensional tolerance number
Value.
Step 2：Part is set against the mode of locator L-shaped part location division, wherein locator L-shaped part location division
It is former that straight line intersection point where straight line where part X-axis positioning inner side edge and part Y-axis positioning inner side edge is defined as plane coordinate system
Point；
Step 3：According to part size to be measured, determine that each coordinates regional in plane coordinate system is called in detection program
Detect implementing procedure.In the present embodiment, the division of coordinates regional and the detection implementing procedure called are shown in Fig. 6.Setting is sat to first
The mark coordinates regional 22 of region 21 and second calls distance detection implementing procedure, and sets detection direction parallel to X-axis, to detect number
Measure as 2；Setting calls segmental arc radius to detect implementing procedure to the 3rd coordinates regional 23, and amount detection is 1；Setting is to 4-coordinate
Pore Diameter Detection implementing procedure is called in region 24, and amount detection is 1；Setting is to Five Axis region (with the weight of 4-coordinate region 24
It is folded) and the 6th coordinates regional 25 call pitch-row detection implementing procedure, amount detection is 1.Establishing method can be inputted with numerical value,
Can be taking human as by drawing frame to divide；
Step 4：The substrate X-axis of locator L-shaped board positioning part is positioned into inner side edge and substrate Y-axis positioning inner side edge difference
Against two orthogonal outer side edges of transparency carrier；
Step 5：Part is placed on transparency carrier and locator L-shaped part is resisted against against mode by what step 2 was determined
The part X-axis positioning inner side edge and part Y-axis positioning inner side edge of location division；
Step 6：Remove locator；
Step 7：Control plane optical generator lights；
Step 8：Plane optical receiver is received after image such as Fig. 7, and COMPUTER DETECTION program is given by image transmission；
Step 9：The image that the processing of COMPUTER DETECTION program is received, forms parts profile, and the plane determined according to step 2
Coordinate origin position calculates and stored the coordinate that all pixels point is fastened in plane coordinates on contour line.Wherein it is determined that
The method of parts profile can be the black pixel point of black and white intersection.
Step 10：COMPUTER DETECTION program calls corresponding detection implementing procedure to enter in the coordinates regional that step 3 is determined
Row detection, forms actual measurement size；In the present embodiment, including following sub-step：
(1) distance detection implementing procedure is called to the first coordinates regional 21 and the second coordinates regional 22 (see Fig. 6 and Fig. 8)：
Step 3.12：It is the first pixel to select any point P1 on the contour line in the first coordinates regional 21；
Step 3.13：Cross the first pixel P1 and meet at the second picture parallel to the contour line in X-axis and the second coordinates regional 22
Vegetarian refreshments P11；
Step 3.14：Calculate the pixel distance between the first pixel P1 coordinates and the second pixel P11 coordinates and conversion
It is long measure apart from L1, as measured distance and stores；
Step 3.15：Repeat step 3.12 is to step 3.14：
Step 3.12：It is the first pixel to select another arbitrfary point P2 on the contour line in the first coordinates regional 21；
Step 3.13：Cross the first pixel P2 and meet at the second picture parallel to the contour line in X-axis and the second coordinates regional 22
Vegetarian refreshments P22；
Step 3.14：Calculate the pixel distance between the first pixel P2 coordinates and the second pixel P22 coordinates and conversion
It is long measure apart from L2, as measured distance and stores；
Step 3.15：Amount detection reaches 2, end of subroutine.
(2) call segmental arc radius to detect implementing procedure to the 3rd coordinates regional 23 (see Fig. 6 and Fig. 9)：
Step 3.22：Select any 3 points T1, T2 and T3 on the contour line in the 3rd coordinates regional 23；
Step 3.23：It is the 3rd pixel T0 to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.24：It is the 4th pixel to select any point T4 on the contour line in the 3rd coordinates regional 23；
Step 3.25：Calculate the pixel distance between the 3rd pixel T0 coordinates and the 4th pixel T4 coordinates and be converted to
Long measure is as surveyed segmental arc radius and stored apart from R1；
Step 3.26：Amount detection reaches 1, end of subroutine.
(3) Pore Diameter Detection implementing procedure is called to 4-coordinate region 24 (see Fig. 6 and Fig. 9)：
Step 3.32：Select any 3 points S1, S2 and S3 on the contour line in 4-coordinate region 24；
Step 3.33：It is the 5th pixel S0 to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.34：It is the 6th pixel to select any point S4 on the contour line in 4-coordinate region 24；
Step 3.35：Cross the 5th pixel S0 and the 6th pixel S4 and make straight line and hand over contour line in 4-coordinate region 24
In another pixel S5, the point of intersection S 5 is the 7th pixel；
Step 3.36：Seek the pixel distance calculated between the 6th pixel S4 coordinates and the 7th pixel S5 coordinates and be converted to
Long measure distance, as surveys aperture and stores；
Step 3.37：Amount detection reaches 1, end of subroutine.
(4) pitch-row is called to detect work Five Axis region (being overlapped with 4-coordinate region 24) and the 6th coordinates regional 25
Tool program (see Fig. 6 and Figure 10)：
Step 3.42：Any 3 points are selected on the contour line in Five Axis region (being overlapped with 4-coordinate region 24)；
Step 3.43：It is the 8th pixel S0 to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.44：Any 3 points are selected on the contour line in the 6th coordinates regional 25；
Step 3.45：It is the 9th pixel U0 to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.46：Seek the pixel distance calculated between the 8th pixel S0 coordinates and the 9th pixel U0 coordinates and be converted to
Long measure is as surveyed pitch-row and stored apart from V1；
Step 3.47：Amount detection reaches 1, end of subroutine.
Step 11：COMPUTER DETECTION program will be surveyed to be measured size and tolerance numerical value of the size with being inputted in step 1 and be carried out
Compare, such as actual measurement size all meets size to be measured and tolerance numerical value, then the size comparative result to be measured is " qualified "；As owned
Chi rain comparative result to be measured is " qualified ", then part to be measured is " qualified "；As long as there is any actual measurement size not meet chi to be measured
Very little and tolerance numerical value, then the part to be measured is " unqualified ".
Step 12：After COMPUTER DETECTION program measures part to be measured for " unqualified ", described dimensional tolerance detection dress
Put and send prompting alarm or control production line to shut down.
It is seen from above, during detection, setting part against by way of L-shaped part location division, can it is determined that it is flat
Under areal coordinate system, distinguish each coordinates regional to call detection implementing procedure.By calling detection implementing procedure in each coordinates regional,
To realize the accurate measurement to size to be measured, pixel projection figure so can be quickly, simply handled very much, so as to realize more
Efficiently detect.Apart from detection instrument by the coordinates regional perform detection set, so as to simplify the side of distance detection
Method, improves detection efficiency.Segmental arc radius detection implementing procedure, Pore Diameter Detection implementing procedure and pitch-row detection implementing procedure pass through
Three points centering method effectively determines the center of circle.
In the present invention, the embodiment two of dimensional tolerance detection means is as is illustrated by figs. 11 and 12.In embodiment two, size is public
Device for detecting difference includes plane optical generator 1, plane optical receiver 7, transparency carrier 6, locator 8, support unit 12, driving list
Member 13, the computer and controller for being loaded with detection program.
Wherein, support unit 12 is fixedly connected with plane optical generator 1 and plane optical receiver 7, and plane optical generator 1 is sent out
The light gone out is perpendicular to horizontal plane；And driver element 13 is driven using leading screw in the present embodiment, for driving support unit 12
And drive plane optical generator 1 and the relative transparent substrate 6 of plane optical receiver 2 thereon to move in parallel.And described controller
By the described computer for being loaded with detection program control, alarm is sent when testing result is unqualified, is sent after alarm such as in people
Not receive other instructions of the computer in the time of setting, then driver element is controlled to shut down.The present embodiment its
His aspect is identical with the dimensional tolerance detection means in embodiment one.In the present embodiment, planar light is driven by driver element 13
Generator 1 and the relative transparent substrate 6 of plane optical receiver 7 are moved in parallel, and can scan and detect large-scale part 9.By setting
Controller is put, realization sends alarm when testing result is unqualified or control driver element shuts down, when support unit is made a living
In the case of a part for producing line, the full inspection to product can be realized, and stop production line in time when testing result is unqualified
Operating, it is to avoid waste product occur.
The preferred embodiments of the present invention are description above described, it is to be understood that the present invention is not limited to above-mentioned implementation
Example, and the exclusion to other embodiment should not be regarded as.By the enlightenment of the present invention, those skilled in the art combine known or existing
The change that technology, knowledge are carried out also should be regarded as within the scope of the present invention.
Claims (14)
1. a kind of dimensional tolerance detection means, it is characterized in that including：It is plane optical generator, plane optical receiver, transparency carrier, fixed
Position device and the computer for being loaded with detection program；
Described plane optical generator is oppositely arranged with plane optical receiver, and centre is equipped with transparency carrier；Described transparency carrier
The light sent perpendicular to plane optical generator；
Described transparency carrier is provided with least two orthogonal outer side edges；
Described locator includes L-shaped board positioning part and the L-shaped part location division being fixedly secured to one another；Described L-shaped substrate
Location division positions inner side edge and substrate Y-axis positioning inner side edge provided with orthogonal substrate X-axis, for bearing against transparency carrier
Orthogonal two outer side edges；Described L-shaped part location division positions inner side edge and part provided with orthogonal part X-axis
Y-axis position inner side edge, for for part outer edge surface against；
The described computer for being loaded with detection program is used to handle the image of plane optical receiver reception and forms parts profile, also
Size and tolerance for being measured to parts profile and with being manually set are compared, and export comparative result.
2. a kind of dimensional tolerance detection means as claimed in claim 1, it is characterized in that：Also include base frame, vertical rod and planar light
Generator support frame；
Described plane optical receiver is horizontally placed on base frame, and transparency carrier is above plane optical receiver；
Described plane optical generator support frame, which is used for supporting plane optical generator, makes its level downward；
Described vertical rod is fixedly connected with base frame, sliding above and below plane optical generator for being driven for plane optical generator support frame
It is dynamic.
3. a kind of dimensional tolerance detection means as claimed in claim 2, it is characterized in that：Also include light shield and elastic packing
Circle；
Described light shield is fixedly connected on plane optical generator lower end；
Described elastic seal ring is on base frame and around plane optical receiver；
Driving plane optical generator declines along vertical rod, and described light shield is abutted with elastic seal ring.
4. a kind of dimensional tolerance detection means as claimed in claim 1, it is characterized in that：Also include support unit and driving is single
Member；
Described support unit is fixedly connected with the peaceful face optical receiver of plane optical generator；
The light that described plane optical generator is sent is perpendicular to horizontal plane；
Described driver element is used to drive support unit and drives the peaceful face optical receiver of plane optical generator thereon relative
Transparency carrier is moved in parallel.
5. a kind of dimensional tolerance detection means as claimed in claim 1, it is characterized in that：Also include prompting alarm, it is described
Prompting alarm is controlled by the described computer for being loaded with detection program, and prompting or alarm are sent when testing result is unqualified.
6. a kind of dimensional tolerance detection means as claimed in claim 4, it is characterized in that, in addition to controller, described control
Device is controlled by the described computer for being loaded with detection program, and alarm is sent when testing result is unqualified or control driver element stops
Only operate.
7. a kind of dimensional tolerance detection means as claimed in claim 6, it is characterized in that, send police when testing result is unqualified
After report, other instructions of the described controller computer as described in not received within the time being manually set, then control driving is single
Member shuts down.
8. a kind of method of detected size tolerance, is detected using a kind of dimensional tolerance as any one of claim 1 to 6
Device, it is characterized in that, comprise the following steps：
Step 1：By part size to be measured and tolerance numerical value input COMPUTER DETECTION program；
Step 2：Part is set against the mode of locator L-shaped part location division, wherein, the zero of locator L-shaped part location division
Straight line intersection point where straight line where part X-axis positioning inner side edge and part Y-axis positioning inner side edge is defined as plane coordinate system origin；
Step 3：According to part size to be measured, the detection that each coordinates regional is called in plane coordinate system is determined in detection program
Implementing procedure；
Step 4：The substrate X-axis of locator L-shaped board positioning part is positioned into inner side edge and substrate Y-axis positioning inner side edge is born against
Two orthogonal outer side edges of transparency carrier；
Step 5：Part is placed on transparency carrier and the positioning of locator L-shaped part is resisted against against mode by what step 2 was determined
The part X-axis positioning inner side edge and part Y-axis positioning inner side edge in portion；
Step 6：Remove locator；
Step 7：Control plane optical generator lights；
Step 8：Image transmission is given COMPUTER DETECTION program by plane optical receiver after receiving image；
Step 9：The image that the processing of COMPUTER DETECTION program is received, forms parts profile, and the plane coordinates determined according to step 2
It is that origin position calculates and stored the coordinate that all pixels point is fastened in plane coordinates on contour line；
Step 10：COMPUTER DETECTION program calls corresponding detection implementing procedure to be examined in the coordinates regional that step 3 is determined
Survey, form actual measurement size；
Step 11：COMPUTER DETECTION program will be surveyed to be measured size and tolerance numerical value of the size with being inputted in step 1 and is compared,
And export comparative result.
9. a kind of method of detected size tolerance as claimed in claim 7, it is characterized in that：Described detection implementing procedure includes
Distance detection implementing procedure；Described distance detection implementing procedure comprises the following steps：
Step 3.11：Interface is provided, the first coordinates regional and the second coordinates regional, detection direction and detection number are set for user
Amount；Described detection direction can be from parallel to X-direction or parallel to Y direction or between any two pixel coordinate
Selected in line a kind of；
Step 3.12：It is the first pixel to select any point on the contour line in the first coordinates regional；
Step 3.13：The first pixel is crossed to make the straight line parallel to detection direction and meet at the contour line in the second coordinates regional
Second pixel；
Step 3.14：Calculate the pixel distance between the first pixel point coordinates and the second pixel point coordinates and be converted to long measure
Distance, as measured distance are simultaneously stored；
Step 3.15：Repeat step 3.12 is to step 3.14 until the number of measured distance reaches the amount detection of setting.
10. a kind of method of detected size tolerance as claimed in claim 7, it is characterized in that：Described detection implementing procedure bag
Parantheses section radius detection implementing procedure；Described segmental arc radius detection implementing procedure comprises the following steps：
Step 3.21：Interface is provided, the 3rd coordinates regional and amount detection are set for user；
Step 3.22：Any 3 points are selected on the contour line in the 3rd coordinates regional；
Step 3.23：It is the 3rd pixel to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.24：It is the 4th pixel to select any point on the contour line in the 3rd coordinates regional；
Step 3.25：Calculate the pixel distance between the 3rd pixel point coordinates and the 4th pixel point coordinates and be converted to long measure
Distance, as surveys segmental arc radius and stores；
Step 3.26：Repeat step 3.22 is to step 3.25 until the number of actual measurement segmental arc radius reaches the amount detection of setting.
11. a kind of method of detected size tolerance as claimed in claim 7, it is characterized in that：Described detection implementing procedure bag
Include Pore Diameter Detection implementing procedure；Described Pore Diameter Detection implementing procedure comprises the following steps：
Step 3.31：Interface is provided, 4-coordinate region and amount detection are set for user；
Step 3.32：Any 3 points are selected on the contour line in 4-coordinate region；
Step 3.33：It is the 5th pixel to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.34：It is the 6th pixel to select any point on the contour line in 4-coordinate region；
Step 3.35：Cross the 5th pixel and the 6th pixel makees straight line and hands over the contour line in 4-coordinate region in another picture
Vegetarian refreshments, the intersection point is the 7th pixel；
Step 3.36：Seek the pixel distance calculated between the 6th pixel point coordinates and the 7th pixel point coordinates and be converted to long measure
Distance, as surveys aperture and stores；
Step 3.37：Repeat step 3.32 is to step 3.36 until the number in actual measurement aperture reaches the amount detection of setting.
12. a kind of method of detected size tolerance as claimed in claim 7, it is characterized in that：Described detection implementing procedure bag
Include pitch-row detection implementing procedure；Described pitch-row detection implementing procedure comprises the following steps：
Step 3.41：Interface is provided, Five Axis region and the 6th coordinates regional and measurable amount are set for user；
Step 3.42：Any 3 points are selected on the contour line in Five Axis region；
Step 3.43：It is the 8th pixel to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.44：Any 3 points are selected on the contour line in the 6th coordinates regional；
Step 3.45：It is the 9th pixel to ask for the equidistant pixel coordinate of above-mentioned three point coordinates；
Step 3.46：Seek the pixel distance calculated between the 8th pixel point coordinates and the 9th pixel point coordinates and be converted to long measure
Distance, as surveys pitch-row and stores；
Step 3.47：Repeat step 3.42 is to step 3.46 until the number of actual measurement pitch-row reaches the amount detection of setting.
13. a kind of method of detected size tolerance as claimed in claim 7, it is characterized in that：COMPUTER DETECTION program will be surveyed
Size and the mode that the size to be measured and tolerance numerical value that are inputted in step 1 are compared are as follows：Actual measurement size is treated with corresponding
Survey size and tolerance numerical value is compared, such as actual measurement size all meets size to be measured and tolerance numerical value, then the size ratio to be measured
Relatively result is " qualified "；Part to be measured is " qualified " if all size comparative results to be measured are " qualified "；As long as having any
Actual measurement size does not meet size to be measured and tolerance numerical value, then the part to be measured is " unqualified ".
14. a kind of method of detected size tolerance as claimed in claim 12, it is characterized in that：Also include step 12：Calculating
Machine testing program measures part to be measured for after " unqualified ", described dimensional tolerance detection means sends prompting alarm or control life
Producing line shuts down.
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