CN106338229A - Method for measuring contour of workpiece - Google Patents
Method for measuring contour of workpiece Download PDFInfo
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- CN106338229A CN106338229A CN201610644320.XA CN201610644320A CN106338229A CN 106338229 A CN106338229 A CN 106338229A CN 201610644320 A CN201610644320 A CN 201610644320A CN 106338229 A CN106338229 A CN 106338229A
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- measurement
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- measurement bar
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a method for measuring the contour of a workpiece. According to the method, the workpiece is put into a detection assisting clamp; the design outer contour line of the workpiece is deviated outwards, so that a positioning cavity can be obtained; the workpiece is positioned through a corresponding positioning mechanism; corresponding detection points are formed in the positioning cavity according to measuring points on the workpiece; a vertical measuring rod in a measuring device, which can move forwards or backwards, is positioned at the detection point of the detection assisting clamp; the measuring rod is moved forwards so as to abut against a corresponding measuring point on the workpiece; the actual movement distance of the measuring rod displayed by the scale of the detection assisting clamp is read, and the difference value of the actual movement distance and the theoretical deviation value of the detection point of the positioning cavity relative to the corresponding measuring point of the workpiece is calculated, and the difference value is the dimension deviation value of the workpiece at the measuring point, and therefore, whether a gap between the workpiece and an adjacent workpiece when the workpiece is installed satisfies a design requirement can be judged. The method of the invention has the advantages of simple structure, low cost, and no need for complicated calculation for obtaining a measurement result, and is suitable for large-sized workpiece contour on-line detection.
Description
Technical field
The present invention relates to the e measurement technology in machining and manufacture process, especially relate to a kind of specially large-scale work of measurement
The method of part face profile.
Background technology
In automobile production and manufacture process, need to process the larger workpiece of some overall dimensions, most in such workpiece
Digital control processing not by Large Machining Center completes, but completed using techniques such as metal plate punchings, therefore its
Easily deviation in the appearance profile of finished product, for this reason, we need to measure the appearance profile of the workpiece machining.Due to above-mentioned
The overall dimensions of workpiece are larger, and the survey tool of slide calliper rule one class therefore cannot be adopted directly to be measured.In the prior art,
People generally measure the profile of workpiece by the following two kinds method: a kind of is to be measured on profile by large-scale three-coordinates measuring machine
The coordinate of each test point, for example, disclosed in Chinese patent literature " a kind of three coordinate measuring machine ", Publication No.
Cn104019778a, but such three-coordinates measuring machine exist complex structure, expensive, be not easy to promote the use of thus uncomfortable
The problems such as close on-line measurement, and its measurement result is merely only the coordinate figure of test point it is difficult to direct embodiment is respectively examined on profile
The deviation of measuring point convex or concave, therefore cannot rapidly judge this workpiece when car load is installed and adjacent workpieces between
Whether gap meets design requirement.Another kind is the appearance profile obtaining workpiece using digital scan or digital camera technology, for example,
Disclosed one kind " cross section profile measurer ", Publication No. cn101403605a in Chinese patent literature, it includes being fixed on
The angle of the line-structured light generator on one horizontal base, video camera, line-structured light projecting direction and camera light direction of principal axis
In the range of 30 degree of -35 degree, the distance of the lightening hole of line-structured light generator to video camera image plane center is in 85mm -95mm model
In enclosing.During measurement, line-structured light plane and testee phase that line-structured light generator projects surrender a very bright profile
Line, the contour line photographing is converted to image coordinates output by video camera, and image coordinates is updated to according to video camera perspective imaging
The two-dimensional coordinate that just can obtain in structure light bright finish coordinate system in the formula that principle is set up is the 2-D data of cross section profile, can be real
The non-cpntact measurement of existing cross section profile.Such measuring method has the advantages that certainty of measurement and measurement efficiency are high, and can pass through
Corresponding computed in software directly obtains the deviation of each test point convex or concave on profile, but still there is complex structure, valency
Lattice are expensive, be not easy to promote the use of thus the problems such as be not suitable for on-line measurement.
Content of the invention
The invention aims to solving the complex structure existing for method of existing measurement workpiece profile, price is held high
Problem that is expensive, being not suitable for on-line measurement, the method that a kind of measurement workpiece profile of simplicity is provided, the measurement apparatus structure that it adopts
Simple low cost, thus it is applied to the on-line checking to large-scale workpiece profile for the automobile making factory, and measurement result need not be answered
Miscellaneous calculating can determine whether whether gap when car load is installed and adjacent workpieces between for this workpiece meets design requirement.
To achieve these goals, the present invention employs the following technical solutions:
A kind of method of measurement workpiece profile, comprises the steps:
Comprise the steps:
A., some measurement points are determined on the design outer contour of workpiece；
B. one measurement skew of design outer contour shift outward of described workpiece is worth to shift wheel profile and described survey
The amount one-to-one test point of point；
C. process a positioning chamber according to described skew contour line on the upper surface of a detection auxiliary clamp:
D. put the workpiece in positioning in described positioning chamber, thus between the outer ledge and the edge of described positioning chamber of workpiece
Form a measurement gap；
E. measurement apparatus with movably vertical measurement bar are placed into the upper surface of described detection auxiliary clamp
On, the lower end of described measurement bar is stretched in the corresponding measurement gap of first test point；
F. along described positioning chamber, the normal direction at first test point moves described measurement bar, so that described measurement bar is divided
Not against described positioning chamber inner sidewall and workpiece lateral wall, by the displacement of described measurement bar and described measurement deviant ratio
Relatively, you can obtain the size deviation value in first measurement point for the workpiece；
G. repeat step e, f, and correspondingly adjust serial number therein, you can obtain the size of each measurement point on workpiece successively
Deviation value, thus judge whether this workpiece meets design requirement.
The mode that the present invention first passes through digital control processing makes the detection auxiliary clamp of a standard, place and position to need
Workpiece to be measured, due to skew contour line cutting at test point corresponding with positioning chamber on front side of the measurement bar for measurement
Line is tangent, therefore, is formed tangent on front side of measurement bar at this test point with skew contour line.Pass through what measurement obtained by calculating
The actual displacement of measurement bar and the diameter sum of measurement bar, then be compared with the measurement deviant being previously set and obtain
One deviation value, you can obtain the actual error in measurement point for the workpiece, and then judge this workpiece in general assembly and adjacent workpieces
Between gap whether meet design requirement.Particularly, when measurement apparatus navigate on the upper surface of detection auxiliary clamp, erect
The measurement bar of straight setting is perpendicular to the upper surface of detection auxiliary clamp, it can thus be ensured that the accuracy of measurement, it is to avoid using slide calliper rule
Certainty of measurement is affected because the claw of slide calliper rule tilts during the survey tool hand dipping of one class.
Preferably, described measurement apparatus include body, the bottom of described body has a supporting plane, described measurement
Described supporting plane is stretched out in the lower end of bar, on described body setting can show measurement bar the scale of displacement and can locking
The lockable mechanism of described measurement bar.
Lockable mechanism can by measurement bar be locked at the original position of scale and mobile after final position, so, we
Only need to be by observing measurement bar corresponding scale label when two positions, you can efficiently and easily obtain the movement of measurement bar away from
From.
Preferably, it is recessed to process positioning respectively in the corresponding each test point position of medial wall top edge of described positioning chamber
Groove, in step e, described measurement bar lower end screens in described detent, now on described measurement bar and described positioning chamber
Corresponding described skew tangent line at first test point for the contour line is tangent.
Because the screens of measurement bar lower end is in described detent, and measurement bar skew profile corresponding with positioning chamber
Tangent line at first test point for the line is tangent, thus we without computation and measurement bar diameter that is to say, that we only need count
Deviation value between the displacement calculating measurement bar and the measurement deviant being previously set, you can obtain the reality in measurement point for the workpiece
Border error, thus be conducive to improving detection efficiency.
Preferably, described detent is v shape groove, the bottom land of described detent is located at the corresponding institute of this detent
State on the normal at the test point of skew contour line.
The detent of v shape and measurement bar cooperation, both can ensure that accurate screens in detent for the measurement bar, it is to avoid produce
The relative displacement of raw left and right, simultaneously facilitates the position dimension determining measurement bar after positioning it is ensured that measurement bar after measurement apparatus positioning
The front side of lower end skew corresponding with positioning chamber tangent line at test point for the contour line is tangent.
Preferably, described measurement bar is by the conllinear longitudinal slice bar arranged of longitudinal axis and transversal flaps bar square crossing structure
Become, the cross section of described longitudinal slice bar assumes diamond in shape, when the lower end of described measurement bar is stretched between the corresponding measurement of first test point
When in gap, the rear side sideline of described longitudinal slice bar lower end recline and the detent in v shape for the screens bottom land, now described positioning
Described skew contour line corresponding to chamber passes through longitudinal slice bar lower end in described measurement bar in the normal at first test point
Front side sideline.
The cross section being made up of longitudinal slice bar and transversal flaps bar square crossing is in that the measurement bar of cross star is conducive to improving
The intensity of measurement bar and rigidity, and the measurement point on workpiece can be accurately positioned when measurement bar reach is against workpiece, be conducive to
Improve certainty of measurement.
Preferably, described locating rod is the cylindrical bar perpendicular to described detection datum plane, the side of described body
It is provided with the crossbeam extending laterally out, described locating piece is located at the outer end of described crossbeam, described locating piece has an evagination
The axis perpendicular of cylindrical locating surface, the axis of described locating surface and described locating rod, when measurement apparatus need positioning,
The locating surface of described locating piece reclines the lateral surface of described locating rod.
Because locating surface is the face of cylinder, therefore, when locating piece reclines locating rod it can be ensured that being point contact between the two,
Be conducive to improving its positioning precision.
Preferably, described body trailing flank is provided with the sliding tray extending on front side of body, the upper surface of described body sets
There is the slot of insertion sliding tray, described slot is in cross-shaped, the left and right sides of described sliding tray with the cross section of sliding tray
It is respectively equipped with the slide block of strip, the top of described measurement bar is provided with I-shaped sliding part, described measurement apparatus are when mounted, first
Described measurement bar is injected in described slot from top to bottom, then two pieces of described slide blocks is inserted the left and right sides of described sliding tray
And screens is in the recess of described sliding part both sides, so that described measurement bar is constituted with described sliding tray being slidably connected.
When sliding tray is inserted into two pieces of slide blocks, that is, constitute the I-shaped groove being adapted to the sliding part of measurement bar, both favorably
In the positioning up and down of measurement bar, simultaneously facilitate the processing of sliding tray and the assembling of measurement bar.
Preferably, the left and right sides of described body upper part is equipped with the locking screwed hole of sliding tray described in insertion and tight
Gu screwing through hole, described locking screw thread in the hole is provided with lock bolt, is provided with and threadeds with slide block in described trip bolt through hole
Trip bolt, when needing measurement bar described in locking, first unclamp trip bolt, then tighten lock bolt, make lock bolt
Screw thread one end against slide block, described slide block stands tightly against the sliding part of described measurement bar and by described measurement bar locking；When need
When moving described measurement bar, first unclamp described lock bolt, then tighten described trip bolt, make described slide block be fastened on cunning
In dynamic groove, you can so that the sliding part of described measurement bar is formed with described slide block and be slidably connected.
Trip bolt plays the effect pulling slide block, thus slide block can be fixed in sliding tray.On the contrary, lock bolt
Then the effect promoting slide block can be played, thus can be easily by measurement bar clamping and be locked between two slide blocks.
Therefore, the invention has the following beneficial effects: the simple low cost of structure is it is adaptable to automobile making factory is to large-scale work
The on-line checking of part profile, and measurement result can determine whether this workpiece when car load is installed and adjacent workpieces without complicated calculations
Between gap whether meet design requirement.
Brief description
Fig. 1 is a kind of structural representation during present invention measurement.
Fig. 2 is a kind of structural representation of measurement apparatus.
Fig. 3 is the transverse sectional view of measurement apparatus.
Fig. 4 is the cross-sectional view of measurement bar.
In figure: 1, workpiece 11, measurement point 2, detection auxiliary clamp 21, detection datum plane 22, positioning chamber 23, fixed
Position groove 24, locating rod 3, measurement apparatus 31, body 311, vertical section 312, traversing section 313, supporting plane 314, cunning
Dynamic groove 315, slot 316, crossbeam 317, locating piece 32, measurement bar 3212, sliding part 322, longitudinal slice bar 323, laterally
Piece bar 33, slide block 34, scale 35, locking screwed hole 36, trip bolt through hole 37, lock bolt 38, trip bolt.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of method of measurement workpiece profile, specifically include following steps:
A., some measurement points 11 are determined on the design outer contour of workpiece 1.Preferably, measurement point 11 should be arranged on straight line and
At the boundaries such as circular arc, straight line and straight line and turning point, for longer straight line and camber line, should be at least in head and the tail and centre position
Three measurement points of setting；
B. by the design outer contour of workpiece 1 equably one measurement deviant of shift outward, thus obtaining a skew profile
Line, and determine and described measurement point 11 some test points correspondingly on described skew contour line.It should be noted that surveying
Amount deviant can be integer, and in order to calculating, processing and follow-up measurement, and skew described herein refers to design foreign steamer
Point on profile is displaced outwardly a measurement deviant setting along design outer contour in the normal direction of this point.Additionally,
We are that on each measurement point and the skew contour line designing on outer contour, corresponding test point arranges corresponding serial number, suitable
Sequence number starts to be incremented by one by one from first；
C. make a detection auxiliary clamp 2, need the workpiece 1 of measurement in order to placing and positioning.This detection auxiliary clamp 2
Top be level detection datum plane 21, detection datum plane 21 on according to skew contour line process a positioning chamber
22, the side wall of this positioning chamber, perpendicular to detection datum plane 21, then processes for positioning determining of workpiece in positioning chamber 22
Position mechanism, and it is recessed to process positioning respectively in each test point position of the side wall top edge corresponding skew contour line of positioning chamber 22
Groove 23.The installing hole of little cone in export processing is big at the side of detent 23 is located on detection datum plane 21,
Then in the hole installation locating rod 24 is being installed.Specifically, detent mechanism can be and the positioning fabrication hole on workpiece or peace
The simple alignment pin of adaptation or the positioning convex such as dress hole；And the hypomere of locating rod is the peace of the cone being adapted to installing hole
Dress section, thus being conducive to the accurate centering positioning of locating rod, the epimere of locating rod is cylindrical positioning section it is ensured that its upper and lower chi
Very little is consistent.It should be noted that detecting positioning chamber 22, detent 23, installing hole and detent mechanism on auxiliary clamp 2
Processing can on numerical control machine tool once after clamping Continuous maching complete, thus avoid because multiple clamping produce relatively by mistake
Difference, the serial number of detent 23 and locating rod 24 is consistent with the serial number of aforementioned test point；
D. measurement apparatus 3 are made, as shown in Figure 2 and Figure 3, this measurement apparatus 3 includes a body 31 and vertically sets
Put the measurement bar 32 on body.Body 31 is integratedly horizontal forward by the side of vertical section by the vertical section 311 of bottom and top
Constitute to extending the traversing section 312 being formed, so that body is in " 7 " font.For the ease of description, we will connect on vertical section
Traversing section side is defined as the front side of body, on the contrary, the side away from traversing section is defined as the rear side of body on vertical section.This
On body 31, the lower surface of vertical section 311 is supporting plane 313, and the trailing flank on body 31 top arranges horizontal to body 31 front side
The sliding tray 314 of section 312 extension, the cross section of sliding tray is rectangular, and the upper surface of body 31 then arranges insertion sliding tray 314
Slot 315, the rear and front end closing of slot 315, the width of slot 315 is less than the width of sliding tray 314, the bottom surface of slot 315
Less than the bottom surface of sliding tray 314, so that slot 315 and the cross section of sliding tray 314 are in cross-shaped in body 31, slide
The left and right sides of groove 314 is respectively provided with the slide block 33 of strip, and the cross section of slide block 33 is rectangular, thus forming one in body 31
Individual cross section is in I-shaped slip cavity.Additionally, supporting plane 313 is stretched out in the lower end of measurement bar 32 after extending downwardly, measurement
The top setting cross section of bar 32 is in I-shaped sliding part 321, the height of groove of sliding part 321 both sides and the height of slide block 33
Degree is adapted.Measurement bar 32 when mounted, is first injected in slot 315 by measurement apparatus 3 from top to bottom, and so that measurement bar 32 is located at
The rear end of slot 315, certainly, the I-shaped sliding part in measurement bar 32 top 321 width should be less than the width of slot 315, then
Two pieces of slide blocks 33 are inserted the left and right sides of sliding tray 314 from the rear side of body 31, slide block 33 half screens now is being slided
In groove 314, second half then screens in the groove of sliding part 321 both sides of measurement bar 32 so that the sliding part of measurement bar 32
321 are slidably connected with two pieces of slide blocks 33 compositions in sliding tray 314, and measurement bar 32 can be along before and after the direction of supporting plane 313
Mobile.In addition, the both sides that we also need to be located at slot 315 in the upper surface of body 31 arrange scale 34, quickly to show
The displacement of measurement bar 32.And the left and right sides on body 31 top is both needed to arrange the locking screwed hole 35 of insertion sliding tray 314
And trip bolt through hole 36, setting lock bolt 37 in locking screwed hole 35, so that lock bolt 37 is threaded in this
On body 31, trip bolt 38 is then set in trip bolt through hole 36, correspondingly, slide block 33 sets in the position of corresponding trip bolt 38
Put screwed hole, trip bolt 38 is connected to the screw thread in the hole of slide block 33 through trip bolt through hole 36 rear thread.Finally, in body
The crossbeam 316 that 31 right side setting extends laterally out, and a locating piece 317, locating piece are set in the outer end of crossbeam 316
There is on 317 the locating surface of the cylinder of an evagination, the axis horizontal setting of this locating surface.
E. the workpiece 1 needing detection is put in the positioning chamber 22 of detection auxiliary clamp 2, and by aforesaid localization machine
Structure makes workpiece position, thus forming a gap between the outer ledge and the edge of positioning chamber 22 of workpiece 1；
F. unclamp the trip bolt 38 on body 31, then tighten lock bolt 37, make lock bolt 37 be located at locking screwed hole
Tightly against slide block 33, the slide block 33 of measurement bar 32 sliding part 321 both sides stands tightly against measurement bar 32 for screw thread one end in 35
Sliding part 321 thus measurement bar 32 is locked on body 31, measurement bar 32 now is in original position, and we read immediately
Take measurement bar 32 corresponding indicating value on scale 34.Then this measurement apparatus 3 is placed on detection auxiliary clamp 2, makes measurement
The supporting plane 313 of device 3 is fitted with the detection datum plane 21 of detection auxiliary clamp 2, and so that measurement bar 32 is stretched out
The lower end screens of support plane 313 corresponds in first detent 23 of first test point in positioning chamber 22, now measurement bar
The rear side of 32 lower ends reclines the bottom land of first detent 23, then with the laminating points of measurement bar 32 lower end and detent 23
For axis oscillating measurement apparatus 3, so that the locating surface of the locating piece 317 in measurement apparatus 3 is reclined and to be positioned at first positioning recessed
On 24 lateral surface of first locating rod on groove 23 side, due to the axis perpendicular of axis and the locating rod 24 of locating surface, because
Form point between this locating piece 317 and locating rod 24 to contact.Now the front side of measurement bar 32 lower end is then corresponding with positioning chamber 22
Skew tangent line at first test point for the contour line tangent, and the movable direction of measurement bar 32 is right with positioning chamber 22
The skew normal direction at first test point for the contour line answered overlaps so that measurement bar 32 can be along skew contour line the
Normal direction at one test point moves.For the ease of processing and guaranteeing accurate positioning, detent 23 can be made v by us
Shape groove, and make the bottom land sharp corner of detent 23 be located just at the corresponding test point offseting contour line of this detent 23
On the normal at place.Additionally, as shown in figure 4, measurement bar 32 is by the conllinear longitudinal slice bar 322 arranged of longitudinal axis and transversal flaps bar
323 integratedly square crossing constitute, the cross section of longitudinal slice bar 322 assumes diamond in shape, so that the cross section of measurement bar 32 is in cross
Star is that is to say, that measurement bar 32 is the rod member of a cross star cross section stretching.So, when measurement bar 32 lower end positions
During in detent 23, in measurement bar 32, the rear side sideline of longitudinal slice bar 322 lower end reclines and screens is recessed in first positioning
The bottom land of groove 23v shape, and the skew normal at first test point for the contour line corresponding to positioning chamber 22 then passes through described survey
The front side sideline of longitudinal slice bar 322 lower end in gauge rod 32.In addition, for the ease of measurement apparatus 3 in the detection detecting auxiliary clamp 2
Reliable location on datum plane 21, we can arrange a magnetic absorbing seat in body 31 bottom of measurement apparatus 3, so, works as survey
Amount device is placed on detection datum plane, and after detent and locating rod position, only need to rotate opening on magnetic absorbing seat
Close handle, you can by measurement apparatus 3 strong fix on detection datum plane 21；
G. unclamp lock bolt 37, then tighten trip bolt 38, so that slide block 33 is fastened in sliding tray 314, now measurement bar
32 sliding part 321 is re-formed with slide block 33 and is slidably connected.Then promote measurement bar 32, so that measurement bar 32 is moved forward, directly
Front side sideline to measurement bar 32 lower end is fitted with the edge of workpiece 1, and measurement bar 32 now is in final position, Wo Mensui
Read measurement bar 32 now corresponding indicating value on scale 34, and calculate this indicating value and exist with the measurement bar 32 obtained by step f
Difference between the indicating value of scale 34 during original position, you can obtain measurement bar 32 displacement forward, this displacement is subtracted
Measurement deviant is gone to can get size deviation value at corresponding first measurement point 11 for the workpiece 1, when above-mentioned size deviation value
During for positive number, represent the deviation value of workpiece 1 indent compared with design outer contour at first measurement point 11, when size deviates
When being worth for negative, represent the deviation value of workpiece 1 evagination compared with design outer contour at first measurement point 11.Need explanation
, we can by the zero point indicating value of scale 34 be arranged on measurement bar 32 move forward one measurement deviant apart from when corresponding
Position, and measurement bar 32 in original position corresponding scale 34 indicating value be positive number, for example, measurement deviant be 5mm when, when
When measurement bar 32 is in the original position of the rear end of slot 315, the indicating value of scale 34 is 5mm, when measurement bar 32 moves forward one
Individual measurement deviant apart from 5mm when, the indicating value of scale 34 is 0mm, when measurement bar 32 moves forward 6mm, the indicating value of scale 34
For -1mm that is to say, that the positive indicating value of scale 34 represent workpiece 1 at first measurement point 11 with design outer contour phase
The ratio deviation value of evagination, and the negative indicating value of scale 34 represent workpiece 1 at first measurement point 11 with design outer contour phase
The ratio deviation value of indent, thus calculation procedure can be saved, saves time of measuring；
H. repeat step f and step g, and correspondingly adjust serial number therein, you can obtain corresponding described on workpiece 1 successively
The size deviation value of each measurement point 11 on outer contour, thus judge whether this workpiece meets design requirement.For example, when we need
On workpiece to be measured during the size deviation value of second measurement point, serial number is 2, correspondingly, in step f and step g
It is recessed that one test point, the statement such as first detent, first locating rod are adjusted to second test point, second positioning
Groove, second locating rod.
Claims (9)
1. a kind of method of measurement workpiece profile, is characterized in that, comprise the steps:
A., some measurement points (11) are determined on the design outer contour of workpiece (1)；
B. by the design outer contour shift outward one measurement skew of described workpiece (1) be worth to shift wheel profile with described
The one-to-one test point of measurement point (11)；
C. process a positioning chamber (22) according to described skew contour line on the upper surface of detection auxiliary clamp (2):
D. workpiece (1) is put into positioning in described positioning chamber (22), thus in the outer ledge of workpiece (1) and described positioning chamber
(22) form a measurement gap between edge；
E. measurement apparatus (3) with movably vertical measurement bar (32) are placed into described detection auxiliary clamp
(2), on upper surface, the lower end of described measurement bar (32) is stretched in the corresponding measurement gap of first test point；
F. the mobile described measurement bar (32) of the normal direction at first test point along described positioning chamber (22), makes described
Measurement bar (32) bears against described positioning chamber (22) medial wall and workpiece (1) lateral wall, by the shifting of described measurement bar (32)
Dynamic distance is compared with described measurement deviant, you can obtain the size deviation value at first measurement point (11) place for the workpiece (1)；
G. repeat step e, f, and correspondingly adjust serial number therein, you can obtain the upper each measurement point (11) of workpiece (1) successively
Size deviation value, thus judging whether this workpiece (1) meets design requirement.
2. a kind of method of measurement workpiece profile according to claim 1, is characterized in that, described measurement apparatus (3) include
Body (31), the bottom of described body (31) has a supporting plane (313), and the lower end of described measurement bar (32) is stretched out described
Supporting plane (313), the upper setting of described body (31) can show the scale (34) of displacement of measurement bar (32) and can lock
The only lockable mechanism of described measurement bar (32).
3. a kind of method of measurement workpiece profile according to claim 2, is characterized in that, the side of described body (31) is also
It is provided with locating piece (317), be located at each test point side in the upper surface of described detection auxiliary clamp (2) and be respectively equipped with locating rod
(24), when described measurement apparatus (3) are placed on the upper surface of described detection auxiliary clamp (2), described locating piece (317) patch
By described locating rod (24), so that described measurement apparatus (3) positioning.
4. a kind of method of measurement workpiece profile according to claim 1, is characterized in that, interior in described positioning chamber (22)
Wall top edge corresponding each test point position in side processes detent (23) respectively, in step e, described measurement bar (32) lower end
In described detent (23), now described measurement bar (32) and described positioning chamber (22) go up corresponding described shift wheel for screens
Tangent line at first test point for the profile is tangent.
5. a kind of method of measurement workpiece profile according to claim 4, is characterized in that, described detent (23) is v
Shape groove, the bottom land of described detent (23) is located at the test point of the corresponding described skew contour line of this detent (23)
On normal.
6. a kind of method of measurement workpiece profile according to claim 5, is characterized in that, described measurement bar (23) is by longitudinal direction
The longitudinal slice bar (322) of axis collinear arrangement and transversal flaps bar (323) square crossing are constituted, the horizontal stroke of described longitudinal slice bar (322)
Section assumes diamond in shape, when the lower end of described measurement bar (32) is stretched in the corresponding measurement gap of first test point, described longitudinal direction
The rear side sideline of piece bar (322) lower end recline and the detent (23) in v shape for the screens bottom land, now described positioning chamber (22)
Corresponding described skew contour line passes through longitudinal slice bar (322) in described measurement bar (32) in the normal at first test point
The front side sideline of lower end.
7. a kind of method of measurement workpiece profile according to claim 3, is characterized in that, described locating rod (24) is vertical
In the cylindrical bar of described detection datum plane (21), the side of described body (31) is provided with the crossbeam extending laterally out
(316), described locating piece (317) is located at the outer end of described crossbeam (316), and described locating piece (317) has the circle of an evagination
The axis perpendicular of the locating surface of cylindricality, the axis of described locating surface and described locating rod (24), when measurement apparatus (3) need to determine
During position, the locating surface of described locating piece (317) reclines the lateral surface of described locating rod (24).
8. a kind of method of measurement workpiece profile according to claim 2, is characterized in that, described body (31) trailing flank sets
The sliding tray (314) extending on front side of oriented body (31), the upper surface of described body (31) is provided with inserting of insertion sliding tray (314)
Groove (315), described slot (315) is in cross-shaped, the left and right of described sliding tray (314) with the cross section of sliding tray (314)
It is respectively provided on two sides with the slide block (33) of strip, the top of described measurement bar (32) is provided with I-shaped sliding part (321), described survey
Described measurement bar (32) when mounted, is first injected in described slot (315), then by two pieces of institutes by amount device (3) from top to bottom
State the left and right sides the recess in described sliding part (321) both sides for the screens that slide block (33) inserts described sliding tray (314), from
And so that described measurement bar (32) is constituted with described sliding tray (314) and be slidably connected.
9. a kind of method of measurement workpiece profile according to claim 8, is characterized in that, the left side on described body (31) top
Right both sides are equipped with locking screwed hole (35) and the trip bolt through hole (36) of sliding tray described in insertion (314), described locking
It is provided with lock bolt (37) in screwed hole (35), be provided with tight with what slide block (33) was threadeded in described trip bolt through hole (36)
Gu screw (38), when needing measurement bar described in locking (32), first unclamp trip bolt (38), then tighten lock bolt
(37) against slide block (33), described slide block (33) stands tightly against described measurement bar (32) for the screw thread one end, making lock bolt (37)
Sliding part (321) and by described measurement bar (32) locking；When needing mobile described measurement bar (32), first unclamp described locking
Screw (37), then tightens described trip bolt (38), so that described slide block (33) is fastened in sliding tray (314), you can to make institute
State the sliding part (321) of measurement bar (32) and described slide block (33) formation is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167066A (en) * | 2017-07-10 | 2017-09-15 | 中冶建工集团有限公司 | Degree of plainness for wall surface measuring scale |
| CN107966082A (en) * | 2017-11-27 | 2018-04-27 | 宁波邦盛汽车零部件有限公司 | A kind of cubing for being used to detect automobile curved surface part surface profile |
| CN108444354A (en) * | 2018-05-09 | 2018-08-24 | 金华万丰工具厂 | A kind of simple ruler of carpenter |
| CN109490203A (en) * | 2018-12-14 | 2019-03-19 | 河钢股份有限公司承德分公司 | A kind of positioning device of direct reading spectrometry sample |
| CN111380432A (en) * | 2018-12-29 | 2020-07-07 | 京信通信技术(广州)有限公司 | Detection tool for antenna housing |
| CN111765836A (en) * | 2020-07-15 | 2020-10-13 | 东莞宇龙通信科技有限公司 | Radian detection device |
| CN112304243A (en) * | 2020-11-12 | 2021-02-02 | 北京机电研究所有限公司 | Contour detection device and detection method for plate stamping part |
| WO2021120458A1 (en) * | 2019-12-19 | 2021-06-24 | 宁波江丰电子材料股份有限公司 | Ring coordinate inspection tool, measuring method using same, and application thereof |
| CN113899293A (en) * | 2019-12-27 | 2022-01-07 | 苏州圣美特压铸科技有限公司 | Quick detection device of special-shaped part appearance |
| CN109490203B (en) * | 2018-12-14 | 2024-05-03 | 河钢股份有限公司承德分公司 | Positioning device and positioning method for direct-reading spectral analysis sample |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599513A1 (en) * | 1992-11-20 | 1994-06-01 | RENISHAW plc | A method of measuring workpieces using a surface contacting measuring probe |
| CN1116703A (en) * | 1994-08-08 | 1996-02-14 | 陈明彻 | Non-contact 3-D profile real-time measuring method and system |
| CN1409591A (en) * | 2001-09-14 | 2003-04-09 | 富士机械制造株式会社 | Method and device for searching standard and method for detecting standard position |
| JP2012154942A (en) * | 2012-04-06 | 2012-08-16 | Tokyo Seimitsu Co Ltd | Core deviation amount calculation method in roundness measuring apparatus |
| CN103900435A (en) * | 2013-12-20 | 2014-07-02 | 浙江吉利控股集团有限公司 | Engine oil pan gauge and oil pressure intensity determination method through engine oil pan gauge |
-
2016
- 2016-08-05 CN CN201610644320.XA patent/CN106338229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599513A1 (en) * | 1992-11-20 | 1994-06-01 | RENISHAW plc | A method of measuring workpieces using a surface contacting measuring probe |
| CN1116703A (en) * | 1994-08-08 | 1996-02-14 | 陈明彻 | Non-contact 3-D profile real-time measuring method and system |
| CN1409591A (en) * | 2001-09-14 | 2003-04-09 | 富士机械制造株式会社 | Method and device for searching standard and method for detecting standard position |
| JP2012154942A (en) * | 2012-04-06 | 2012-08-16 | Tokyo Seimitsu Co Ltd | Core deviation amount calculation method in roundness measuring apparatus |
| CN103900435A (en) * | 2013-12-20 | 2014-07-02 | 浙江吉利控股集团有限公司 | Engine oil pan gauge and oil pressure intensity determination method through engine oil pan gauge |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167066A (en) * | 2017-07-10 | 2017-09-15 | 中冶建工集团有限公司 | Degree of plainness for wall surface measuring scale |
| CN107966082A (en) * | 2017-11-27 | 2018-04-27 | 宁波邦盛汽车零部件有限公司 | A kind of cubing for being used to detect automobile curved surface part surface profile |
| CN108444354B (en) * | 2018-05-09 | 2023-07-18 | 金华万丰工具厂 | Simple ruler for woodworking |
| CN108444354A (en) * | 2018-05-09 | 2018-08-24 | 金华万丰工具厂 | A kind of simple ruler of carpenter |
| CN109490203A (en) * | 2018-12-14 | 2019-03-19 | 河钢股份有限公司承德分公司 | A kind of positioning device of direct reading spectrometry sample |
| CN109490203B (en) * | 2018-12-14 | 2024-05-03 | 河钢股份有限公司承德分公司 | Positioning device and positioning method for direct-reading spectral analysis sample |
| CN111380432A (en) * | 2018-12-29 | 2020-07-07 | 京信通信技术(广州)有限公司 | Detection tool for antenna housing |
| WO2021120458A1 (en) * | 2019-12-19 | 2021-06-24 | 宁波江丰电子材料股份有限公司 | Ring coordinate inspection tool, measuring method using same, and application thereof |
| CN113899293B (en) * | 2019-12-27 | 2023-11-17 | 苏州圣美特压铸科技有限公司 | Quick detection device of special-shaped part appearance |
| CN113899293A (en) * | 2019-12-27 | 2022-01-07 | 苏州圣美特压铸科技有限公司 | Quick detection device of special-shaped part appearance |
| CN111765836B (en) * | 2020-07-15 | 2022-04-19 | 东莞宇龙通信科技有限公司 | Radian detection device |
| CN111765836A (en) * | 2020-07-15 | 2020-10-13 | 东莞宇龙通信科技有限公司 | Radian detection device |
| CN112304243A (en) * | 2020-11-12 | 2021-02-02 | 北京机电研究所有限公司 | Contour detection device and detection method for plate stamping part |
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