CN109539988A - A kind of square plate geometric tolerance measurement method - Google Patents
A kind of square plate geometric tolerance measurement method Download PDFInfo
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- CN109539988A CN109539988A CN201910039790.7A CN201910039790A CN109539988A CN 109539988 A CN109539988 A CN 109539988A CN 201910039790 A CN201910039790 A CN 201910039790A CN 109539988 A CN109539988 A CN 109539988A
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Abstract
The present invention provides a kind of square plate geometric tolerance measurement methods, comprising steps of (1) selects corresponding standard square plate according to square plate model specification to be measured；(2) standard square plate is placed on three supporting elements of geometric tolerance detection device；(3) it adjusts the standard square plate and makes it through positioning mechanism limit, (4) measure and record the numerical value to standard square plate squareness etc. by detecting element；(5) standard square plate is removed, square plate to be measured is placed on three supporting mechanisms；(6) the square plate position to be measured is adjusted, (7) are detected square plate squareness to be measured etc. and recorded；(8) the various shape position errors of square plate to be measured are calculated by comparing method.In square plate geometric tolerance measurement method of the present invention, it is automatically performed by the detecting instrument of setting to the morphemes such as curvature deviation detection at square plate each side edge length deviation, straightness of sides deviation, side curvature deviation, the squareness deviation at each right angle, square plate center, detection efficiency is improved, detection accuracy is improved.
Description
Technical field
The invention belongs to square plate geometric tolerance fields, more particularly, to a kind of square plate geometric tolerance measurement method.
Background technique
In such as ceramic tile production of existing square plate, need to its squareness deviation, deviations from planarity, side straightness of sides both straight line
The tolerance measurements such as degree, finally determine whether product is qualified by the detection of the above geometric tolerance, in the existing above tolerance detection, lead to
It is often completed by the measurers cooperation such as guiding ruler, depthometer, therefore the testing result serious using artificial disturbing factor of the detection instrument
It really can not precisely react the geometric tolerance of square plate.
Summary of the invention
In view of this, the present invention is directed to propose a kind of square plate geometric tolerance measurement method, to realize to square plate geometric tolerance
Quick and precisely detect.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of square plate geometric tolerance measurement method, comprising the following steps:
(1) according to square plate model specification to be measured, corresponding standard square plate is selected；
(2) standard square plate is placed on three supporting elements, and guarantees that each self-supporting standard square plate of three supporting elements one is straight
At angle, the remaining right angle of the standard square plate is suspended state at this time, and standard square plate and the right angle of the suspension right angle face are known as
Right angle is detected, detection one, right angle right-angle side is defined as X-direction, another right-angle side is Y-direction；
(3) the standard square plate position is adjusted, detection right angle X, Y-direction position are limited by position-limit mechanism, the detection is straight
Angle X-direction limit point closes on detection right-angled apices setting, and then fixes standard square plate position；
(4) its X-direction is measured away from inspection by the way that the angle displacement sensor at detection right angle Y-direction right-angle side outer end is arranged in
Survey distance b at the outer end of the side right angle Y0, using first testing agency's measurement standard square plate bottom surface suspension right angle position height f0, answer
With position height e at the second measurement standard square plate bottom center, testing agency0, its Y-direction is detected by side length displacement sensor
Away from distance a at the detection side right angle Y outer end0, right angle X is detected away from standard square plate by its Y-direction of straightness of sides displacement sensor
Back gauge c0, pass through the corresponding detection side the right angle X middle position height d in third testing agency examination criteria square plate bottom surface0；
(5) standard square plate is removed, square plate to be measured is placed on three supporting elements, and guarantees square plate and standard square plate to be measured
Placement status is identical, three each self-supportings of supporting element, one right angle of square plate to be measured；
(6) the square plate position to be measured is adjusted, right angle X, the limit of Y-direction position are detected to square plate to be measured by position-limit mechanism,
The square plate detection right angle X-direction limit point to be measured closes on detection right-angled apices setting, and then fixes square plate position to be measured；
(7) it keeps each detecting element position constant, its X-direction is measured by angle displacement sensor and is examined away from square plate to be measured
Survey distance b at the outer end of the side right angle Y1, square plate bottom surface suspension right angle position height f to be measured is measured using the first testing agency0, answer
Position height e at square plate bottom center to be measured is measured with the second testing agency0, its Y-direction is detected by side length displacement sensor
Away from distance a at the square plate to be measured detection side right angle Y outer end0, examined by straightness of sides displacement sensor its Y-direction away from square plate to be measured
Survey right angle X back gauge c0, square plate bottom surface to be measured is detected by third testing agency and corresponds to its detection side right angle X middle position height
Spend d0；
(8) the various shape position errors of square plate to be measured are calculated:
Square plate to be measured detects the side right angle Y side length deviation are as follows: a0-a1, unit mm；
The squareness deviation at square plate right angle to be measured to be measured are as follows: (b0-b1)/L2×100；
Curvature deviation at square plate bottom center to be measured are as follows: (e0-e1)/D×100；
Square plate bottom surface suspension right angle angularity deviation to be measured are as follows: (f0-f1)/D×100；
Square plate to be measured detects the side right angle X straightness of sides deviation are as follows: (c0-c1)/L1×100；
Square plate to be measured detects the side right angle X vertical direction curvature deviation are as follows: (d0-d1)/L1×100；
Wherein: L1The side right angle X, which is detected, for standard square plate sets length；
L2The side right angle Y, which is detected, for standard square plate sets length；
D is that standard square plate diagonal line sets length.
(9) step (1)-(8) are repeated, realize other right angles of square plate to be measured and the detection of side correlation geometric tolerance.
Further, it when square plate to be measured is square plate, rotates the square plate to be measured for 90 ° clockwise or counterclockwise, repeats to walk
Suddenly (6) --- (8) realize the measurement to other right angles of square plate to be measured and side geometric tolerance；
Square plate to be measured be rectangular slab when, remove square plate to be measured, by standard square plate compared with step (2) placement status clockwise or
It is rotated by 90 ° and is reapposed on three supporting elements counterclockwise；Then step (3) and (4) are repeated, standard square plate is then removed, it will
Square plate to be measured is relative to equidirectional 90 ° of the rotation of standard square plate, then repeatedly step (6), (7) and (8), realization to square plate to be measured its
The measurement at his right angle and side geometric tolerance.
Further, standard square plate correspond to the supporting point of support construction apart from its immediate two sides of the standard square plate away from
From respectively 4-6mm.
Further, there are two the standard square plate detection side the right angle X Y-direction limit point is set, two limit point arrangements
Standard square plate detect the side right angle X both ends, two Y-direction limit points away from respectively close to standard square plate side distance be 4-6mm,
It is 4-6mm that standard square plate, which detects the side right angle Y X-direction limit point away from standard square plate detection right angle X back gauge,.
Further, the standard square plate detection side the right angle Y side length test point is arranged in standard square plate Parallel testing right angle X
On the side on side, and when side length test point is away from detection right angle Y, distance is 4-6mm, the inspection of standard square plate to the detection right angle Y at outer end
The setting of right angle squareness separate-blas estimation point is surveyed on the detection side right angle Y, the squareness separate-blas estimation point is away from the detection side right angle Y outer end
Place's distance is 4-6mm.
Further, three supporting mechanisms are movably arranged.
Further, it is respectively laser displacement that the angle displacement sensor, side length displacement sensor and straightness of sides, which pass device,
Sensor, first testing agency, the second testing agency and third testing agency are tangent displacement sensor.
Compared with the existing technology, square plate geometric tolerance measurement method of the present invention has the advantage that
In square plate geometric tolerance measurement method of the present invention, it is automatically performed by the detecting instrument of setting every to square plate
It is one side edge length deviation, straightness of sides deviation, side curvature deviation, the squareness deviation at each right angle, recessed at square plate center
The detection of convexity deviation and party's slab warping degree deviation improves detection efficiency, improves detection accuracy.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is this detection method principle assumption diagram；
Fig. 2 is square plate geometric tolerance structure of the detecting device schematic diagram used in this detection method；
Fig. 3 is the first testing agency, the second testing agency and third detection machine in a kind of square plate geometric tolerance detection device
Structure structural schematic diagram；
Fig. 4 is suspension support mechanism structure schematic diagram in detection device；
Fig. 5 is straightness of sides detection principle diagram；
Fig. 6 is squareness detection principle diagram；
Fig. 7 is square plate side camber degree detection principle diagram；
Fig. 8 is that right angle upwarps angularity detection principle diagram；
Fig. 9 is that right angle has a downwarp angularity detection principle diagram；
Figure 10 is square plate center inner concave bending curvature detection principle diagram；
Figure 11 be square plate center under male bend curvature detection principle diagram；
Description of symbols:
The second locating rod of 1-；The first guide rail of 2-；The second scale of 3-；4- holding screw；The second slide plate of 5-；The first scale of 7-；
9- platform；10- supporting mechanism；The first slide plate of 11-；12- angle displacement sensor；13- side length displacement sensor；15- first is examined
Survey mechanism；16- third testing agency；The second testing agency of 18-；21- sliding block；The first locating rod of 22-；17- third locating rod；
The second testing agency of 18-；25- third testing agency；The first magnet base of 27-；28- measuring staff；29- contact；30- hinge pin；31- detection
Instrument；The second magnet base of 32-；33- spring；34- supporting block；401- supporting point；The side 402- straightness of sides test point；The side 403-
Curvature test point；404- limit point；405- squareness separate-blas estimation point；406- side edge length separate-blas estimation point；The center 407-
Locate curvature test point；408- angularity test point.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of square plate such as ceramic tile is as shown in Figure 1, product quality provides the right angle for needing to carry out the square plate at four right angles
Production deviations are examined at degree, each side straightness of sides and curvature, square plate angularity and the center curvature total six
It surveys, this detection method principle detects the specific geometric tolerance value of square plate to be measured using comparison method, is to be measured straight with one right angle of square plate
Illustrate for angle, test point position is determined as, which is set as the side X, another straight flange is set as the side Y, benefit
With 3 points of coplanar principles, with square plate bottom surface, three right angles corresponding to two straight flanges in right angle to be detected are respectively as supporting point
401, by each one supporting point 401 of self-supporting of three supporting mechanisms, realize square plate it is horizontal it is steady place, while by right angle two to be measured
Respectively as Y-direction position limit point 404 at X straight flange both ends in a straight flange, realize the horizontal Y-direction limit of square plate, the X while while
Straight degree separate-blas estimation point 402 is located at the side the X middle position, and by popping one's head in, horizontal Y-direction is detected, the side X vertical direction bending
Spending test point 403 is party's board bottom face and the side the X middle position corresponding points, is by a vertically set probe detection
Can, the X straight flange horizontal direction straightness of sides deviation and the side vertical direction curvature deviation are detected by detecting element；It will be to be measured
Right angle Y straight flange passes through three limit points limits and realizes square plates close to X-direction position limit point 404 is used as at its X straight flange position
Position is fixed, and the squareness deviation at right angle to be measured can be by detecting the squareness separate-blas estimation point 405 of the Y straight flange outer end in X
Direction horizontal-shift distance, the side the Y edge lengths deviation can be by Y-direction range deviations at detection Y straight flange outer end, should
Length variation test point 406 is arranged on the side on the square plate Parallel testing right angle side X, and length variation test point 406 and right angle
The right angle that separate-blas estimation point 405 is the non-supported body support in square plate bottom surface close to, square plate angularity test point 408 is spent,
Curvature test point 407 is at square plate bottom center at center.Comparison method principle: first should according to square plate model to be detected selection one
Square plate corresponds to the on-gauge plate of model, and on-gauge plate is placed on detection mounted box, the detection being correspondingly arranged by each test point
Its distance parameter with on-gauge plate test point of element testing records these normal datas as standard, then removes standard
Plate keeps each detecting element position constant, board under test is placed in the detection device, examines element testing side to be measured by each survey
It corresponds to test point distance parameter parameter as a comparison to plate, and records these reduced parameters, and the comparison of same a test point is joined
Several and standard parameter is made comparisons, each test point of you can get it board under test compares its position deviation numerical value with normal place,
Then formula is corresponded to according to geometric tolerance and calculates respective tolerance values.
It is according to the detection device that the testing principle is arranged, as in Figure 2-4, a kind of square plate geometric tolerance detection device,
Including platform 9, which is equipped with the first guide rail 2, and the sliding of 2 one end of the first guide rail is equipped with first movement part 11, should
The sliding of first guide rail, 2 other end is equipped with the second moving member 5, and first movement part 11 and the second moving member 5 are each provided with and are locked
Holding screw 4, second moving member 5 be equipped with it is horizontal and with the second vertical guide rail 23 of the first guide rail 2, second guide rail 23
It is arranged in X direction, the outer end sliding of the second guide rail 23 is equipped with third moving member 21, and third moving member 21, which is equipped with, locks its position
Lock-screw, the first movement part 11, the second moving member 5 and third moving member 21 are each provided with a supporting mechanism 10, excellent
Choosing, 10 circle of position rod structure of supporting mechanism, it is horizontally-supported that three 10 either flush of supporting mechanism, which form one and are used to support square plate,
Plane, three right angles in four right angles of three supporting mechanisms 10 and square plate are arranged in a one-to-one correspondence, therefore, three supporting mechanisms 10
Line forms approximate right angle triangular structure, wherein the first guide rail 2 and 23 point of intersection of the second guide rail correspond to supporting mechanism 10 to be somebody's turn to do
The right angle of approximate right angle triangle, it is that square plate detects right angle, second moving member 5 that supporting mechanism, which corresponds to square plate right angle, at this
It is equipped with positioning mechanism corresponding with square plate with third moving member 21, detection square position is defined by positioning mechanism,
And then limit square plate and detect out position, square plate is quickly in place purpose when realizing detection, is set on the first movement part 11
There is the angle displacement sensor 12 measured to square plate detection right angle deviation, and Y-direction right-angle side in right angle is detected to square plate
The side length displacement sensor 13 of side length detection, the side length displacement sensor 13 probe and the first guide rail 2 are arranged in parallel, angle displacement
Sensor 12 closes on the setting of the support component 10 on the first movement part 11, the probe of angle displacement sensor 12 and the first guide rail 11
It is vertically arranged, the first testing agency 15 and the other side's board bottom being equipped with for detecting square plate angularity is moved on the platform 9
Second testing agency 18 of bumps state-detection at the center of face.The side for being equipped with and directly spending detection to square plate side face edge is moved on platform
The third testing agency 16 of straight degree displacement sensor 25 and the detection of other side's board bottom surface side end bumps, straightness of sides displacement sensor 25 are used
In the straightness of sides of the right-angle side of corresponding second guide rail 23 in detection detection right angle, third testing agency 16 is corresponding for the detection right angle
The right-angle side vertical direction curvature of second guide rail 23.Preferably, straightness of sides displacement sensor 25 is slidably mounted on the second guide rail
On 23, in practical operation, first movement part 11, the second moving member 5 and third moving member 21 are adjusted according to square plate size in time
It sets, guarantees that three supporting mechanisms 10 respectively close on it and correspond to square plate square position, square plate is then placed on three supporting mechanisms
On 10, and X-direction and Y-direction limit are carried out by positioning mechanism, then by holding screw 4 to first movement part 11, second
Moving member 5 and third moving member 21 lock, and square plate stability passes through angle conducive to the detection of detecting element in guarantee detection process
The squareness separate-blas estimation that displacement sensor 12 realizes square plate detection right angle is spent, square plate inspection is realized by side length displacement sensor 13
Right angle Y-direction right-angle side side length separate-blas estimation is surveyed, realizes that supporting mechanism support is violated in square plate bottom surface by the first testing agency 15
The detection of right angle angularity realizes camber separate-blas estimation at square plate bottom center by the second testing agency 18, passes through third
Testing agency 16 realizes square plate detection right angle X-direction right-angle side vertical direction curvature detection, passes through straightness of sides displacement sensor
25 realize square plate detection right angle X-direction right-angle side straightness of sides detection.
In the present embodiment, as shown in Fig. 2, first testing agency 15, the second testing agency 18 and third testing agency
16, which respectively include magnetic stand 27, measuring staff 28 and detection instrument 31, measuring staff 28, is hinged on magnetic force by horizontally disposed hinge pin 30
In gauge stand upright bar, 28 one end of measuring staff is equipped with the contact 29 for being in contact with square plate bottom surface upwards, and the detection setting of instrument 31 is being surveyed
28 other end of bar, the detection instrument 31 are dial gauge or amesdial, which presses downwards the setting of measuring staff 28.It should
Structure is popped one's head in certain elastic expansion range using dial gauge or amesdial according to lever principle, 29 vertical direction displacement of contact and
The probe vertical direction displacement conversion of instrument 31 is detected, the displacement of contact 29 can be conversed by detecting the intuitive numerical value of instrument 31
Amount, and then obtain corresponding second guide rail, the 23 end center in flatness at square plate center, its suspension right angle angularity and square plate bottom surface
The curvature at place, when actually detected, mobile magnetic stand is until measurement position, is then consolidated by magnetic stand as needed
It is fixed.
In the present embodiment, the angle displacement sensor 12, straightness of sides displacement sensor 25 and side length displacement sensor 13
Respectively laser displacement sensor.
In the present embodiment, the platform 9 is being arranged at the first guide rail 2 equipped with the first scale 7, is closing on the second guide rail 23
The second scale 3 is provided at position, wherein the reset of the first scale 7 is at its center, the first movement part 11 and the
Two moving members 5 are symmetrical arranged about 7 zero point of scale.The structure is convenient for adjusting three supporting mechanism positions according to square plate size, mentions
The versatility of this high measuring device, and first movement part 11 and the second moving member 5 can be adjusted between two parties, third moving member 21 is same
It can be moved along the second guide rail 23, guarantee that square plate center position is constant, and then improve detection efficiency.
In the present embodiment, the positioning mechanism includes the first locating rod 22 and second being arranged on third moving member 21
The second locating rod 1 and third locating rod 17 being arranged on moving member 5, the first locating rod 22 and third locating rod 17 it is horizontal respectively and
It is vertical with the second guide rail 23, and the first locating rod 22 is concordant with 17 outer end of third locating rod is arranged, second locating rod 1 is horizontal
And it is vertical with the first guide rail 2, second locating rod 1 and third locating rod 17 are disposed proximate to.Preferably, the first locating rod 22 close to
Supporting mechanism 10 on third moving member 1 is arranged, and the second locating rod 1 and third locating rod 17 are close to the branch on the second moving member 5
Support mechanism 10 is arranged, which can quickly position the two neighboring side of square plate, improves its efficiency.
According to the testing principle, present embodiment discloses a kind of square plate geometric tolerance measurement methods, comprising the following steps:
(1) according to square plate model specification to be measured, corresponding standard square plate is selected；
(2) three supporting points of standard square plate are placed on three supporting elements, such as the detection of the setting of detection device shown in Fig. 2
In mechanism 10, guarantee three supporting mechanisms, 10 one standard square plate supporting point 401 of each self-supporting standard square plate, at this time the standard side
The remaining right angle of plate is suspended state, and the right angle referred to as detection right angle of standard square plate and the suspension right angle face detects right angle
One right-angle side is defined as X-direction, another right-angle side is Y-direction；It preferably, will be square in order to guarantee that square plate stablizes support
Plate suspension right angle is by suspension support mechanism supports, as shown in figure 4, the second magnet base of suspension support mechanism supports 32 and support
34, supporting block 34 is mounted on the second magnet base 32 by spring 33, and the second magnet base 32 of mobile suspension support mechanism is to suitable
Work as position, then fix second magnet base 32, suspension right angle assists suspension support by supporting block 34, theoretically three support machines
Structure can be realized the square plate stable support function, but for some compared with heavy articles, such as ceramic tile, the square plate suspension angle end because
Gravity turns over square plate by three supporting mechanisms 10 to fall possibility, it is contemplated that only passes through the first testing agency 15, second
It is larger to detection 31 contact pressure of instrument under the supporting role of testing agency 18, probe can be damaged in detection for a long time, therefore,
In the design, at square shaped plate suspension angle be provided with suspension support mechanism supports, by suspension support mechanism supports to suspension angle
It is acted on to floating support, is further ensured that square plate is supported by three stablizing for supporting mechanism；In the present embodiment, it is preferred that institute
Three supporting mechanisms are stated to be movably arranged.Structure realization detects the square plate geometric tolerance of different model size, simultaneously
It realizes and is finely tuned according to actually detected middle supporting point, guarantee that square plate measurement position is stablized；
(3) the standard square plate position is adjusted, detection right angle X, Y-direction position are limited by position-limit mechanism, the detection is straight
Angle X-direction limit point closes on detection right-angled apices setting, and then fixes standard square plate position；Fig. 2 can be used in position-limit mechanism
Position-limit mechanism in shown detection device, that is, the first locating rod 22 and third locating rod 17 respectively correspond to the detection side right angle X
One limit point 404 is arranged, and carries out Y-direction limit by 17 pairs of detection right angle sides X of first locating rod 22 and third locating rod,
The corresponding detection side the right angle Y upper limit site 404 of second locating rod 1, realizes to the limit of the detection side right angle Y X-direction position, is achieved in
Square plate detection position is fixed；
(4) by be arranged in detection right angle Y-direction right-angle side outer end at angle displacement sensor 12 measure its X-direction away from
405 distance b of measuring point0, using both angularity measuring point at 15 measurement standard square plate bottom surface suspension right angle position of the first testing agency
408 position height f0, using at 18 measurement standard square plate bottom center, the second testing agency both curvature measuring point 407 at center
Set height e0, its Y-direction is detected away from i.e. side edge length separate-blas estimation at the detection side right angle Y outer end by side length displacement sensor 13
406 distance a of point0, its Y-direction is measured by straightness of sides displacement sensor 25 and detects right angle X back gauge c away from standard square plate0, also
It is distance c between straightness of sides test point 402 on straightness of sides displacement sensor 25 and the detection side right angle X0, third testing agency should be passed through
The corresponding detection right angle X in 16 examination criteria square plate bottom surfaces when middle position detects right angle X on 403 height of curvature test point
d0；Preferably, it is respectively laser displacement sensing that angle displacement sensor 12, side length displacement sensor 13 and straightness of sides, which pass device 25,
Device, first testing agency 15, the second testing agency 18 and third testing agency 16 are tangent displacement sensor, such as Fig. 3
It is shown, that is, dial gauge, amesdial element testing can be used,
(5) standard square plate is removed, square plate to be measured is placed on three supporting mechanisms 10, and guarantees square plate and standard to be measured
Square plate placement status is identical, three each self-supportings of supporting mechanism 10, one right angle of square plate to be measured；
(6) the square plate position to be measured is adjusted, right angle X, the limit of Y-direction position are detected to square plate to be measured by position-limit mechanism,
The square plate detection right angle X-direction limit point to be measured closes on detection right-angled apices setting, and then fixes square plate position to be measured；
(7) it keeps each detecting element position constant, its X-direction is measured away from square plate to be measured by angle displacement sensor 12
Detect distance b at the outer end of the side right angle Y1, suspension right angle position height in square plate bottom surface to be measured is measured using the first testing agency 15
f0, position height e at square plate bottom center to be measured is measured using the second testing agency 180, detected by side length displacement sensor 13
Its Y-direction is away from distance a at the square plate to be measured detection side right angle Y outer end0, by straightness of sides displacement sensor 25 measure its Y-direction away from
Square plate to be measured detects right angle X back gauge c0, square plate bottom surface to be measured is detected by third testing agency 16 and corresponds to its detection side right angle X
Middle position height d0；
(8) the various shape position errors of square plate to be measured are calculated:
Square plate to be measured detects the side right angle Y side length deviation are as follows: a0-a1, unit mm；
The squareness deviation at square plate right angle to be measured to be measured are as follows: (b0-b1)/L2×100；
Curvature deviation at square plate bottom center to be measured are as follows: (e0-e1)/D×100；
Square plate bottom surface suspension right angle angularity deviation to be measured are as follows: (f0-f1)/D×100；
Square plate to be measured detects the side right angle X straightness of sides deviation are as follows: (c0-c1)/L1×100；
Square plate to be measured detects the side right angle X vertical direction curvature deviation are as follows: (d0-d1)/L1×100；
Wherein: L1The side right angle X, which is detected, for standard square plate sets length；
L2The side right angle Y, which is detected, for standard square plate sets length；
D is that standard square plate diagonal line sets length.
(9) step (1)-(8) are repeated, realize other right angles of square plate to be measured and the detection of side correlation geometric tolerance.
In the present embodiment, according to square plate in life, for example ceramic tile shape is by rectangle and square structure, therefore, when to be measured
When square plate is square plate, the square plate to be measured is rotated for 90 ° clockwise or counterclockwise, step (6) --- (8), realization is treated for repetition
Survey the measurement of other right angles of square plate and side geometric tolerance；
Square plate to be measured be rectangular slab when, remove square plate to be measured, by standard square plate compared with step (2) placement status clockwise or
It is rotated by 90 ° and is reapposed on three supporting mechanisms 10 counterclockwise；Then step (3) and (4) are repeated, standard side is then removed
Plate, by square plate to be measured relative to equidirectional 90 ° of the rotation of standard square plate, then repeatedly step (6), (7) and (8), realization is to be measured
The measurement at other right angles of square plate and side geometric tolerance.
In the present embodiment, standard square plate corresponds to the supporting point 401 of support construction its immediate two apart from the standard square plate
Side distance is respectively 4-6mm.
In the present embodiment, there are two the standard square plate detection side right angle X Y-direction limit point 404 is set, two limit points
The standard square plate detection side right angle X both ends are arranged in, two Y-direction limit points 404 are away from respectively close to standard square plate side distance
For 4-6mm, it is one that standard square plate, which detects 404 quantity of the side right angle Y X-direction limit point, and the detection right angle side the Y X-direction limits
Point 404 is 4-6mm away from standard square plate detection right angle X back gauge.
In the present embodiment, the standard square plate detection side the right angle Y side length test point 406 is arranged in standard square plate Parallel testing
On the side on the right angle side X, and when side length test point horizontal X direction is away from detection right angle Y, distance is 4- to the detection right angle Y at outer end
6mm, standard square plate detect the setting of right angle squareness separate-blas estimation point 405 on the detection side right angle Y, the squareness separate-blas estimation point
405 horizontal Y-directions are 4-6mm away from distance at the detection side right angle Y outer end.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of square plate geometric tolerance measurement method, it is characterised in that: the following steps are included:
(1) according to square plate model specification to be measured, corresponding standard square plate is selected；
(2) standard square plate is placed on three supporting elements, and guarantees each one right angle of self-supporting standard square plate of three supporting elements,
The remaining right angle of the standard square plate is suspended state at this time, and the right angle referred to as detection of standard square plate and the suspension right angle face is straight
Angle, detection one, right angle right-angle side are defined as X-direction, another right-angle side is Y-direction；
(3) the standard square plate position is adjusted, detection right angle X, Y-direction position are limited by position-limit mechanism, the detection right angle side X
Detection right-angled apices setting is closed on to limit point, and then fixes standard square plate position；
(4) by the way that the angle displacement sensor at detection right angle Y-direction right-angle side outer end is arranged in, to measure its X-direction straight away from detection
Distance b at the outer end of the angle side Y0, using first testing agency's measurement standard square plate bottom surface suspension right angle position height f0, using
Position height e at two measurement standard square plate bottom center, testing agency0, its Y-direction is detected away from inspection by side length displacement sensor
Survey distance a at the outer end of the side right angle Y0, X back gauge in right angle is detected away from standard square plate by its Y-direction of straightness of sides displacement sensor
From c0, pass through the corresponding detection side the right angle X middle position height d in third testing agency examination criteria square plate bottom surface0；
(5) standard square plate is removed, square plate to be measured is placed on three supporting elements, and guarantees that square plate and standard square plate to be measured are placed
State is identical, three each self-supportings of supporting element, one right angle of square plate to be measured；
(6) the square plate position to be measured is adjusted, right angle X is detected to square plate to be measured by position-limit mechanism, Y-direction position limits, it should be to
It surveys square plate detection right angle X-direction limit point and closes on detection right-angled apices setting, and then fix square plate position to be measured；
(7) it keeps each detecting element position constant, its X-direction is measured by angle displacement sensor and is detected directly away from square plate to be measured
Distance b at the outer end of the angle side Y1, square plate bottom surface suspension right angle position height f to be measured is measured using the first testing agency0, using
Two testing agencies measure position height e at square plate bottom center to be measured0, by side length displacement sensor detect its Y-direction away to
Survey distance a at the square plate detection side right angle Y outer end0, detected directly by its Y-direction of straightness of sides displacement sensor away from square plate to be measured
Angle X back gauge c0, square plate bottom surface to be measured is detected by third testing agency and corresponds to its detection side right angle X middle position height d0；
(8) the various shape position errors of square plate to be measured are calculated:
Square plate to be measured detects the side right angle Y side length deviation are as follows: a0-a1, unit mm；
The squareness deviation at square plate right angle to be measured to be measured are as follows: (b0-b1)/L2×100；
Curvature deviation at square plate bottom center to be measured are as follows: (e0-e1)/D×100；
Square plate bottom surface suspension right angle angularity deviation to be measured are as follows: (f0-f1)/D×100；
Square plate to be measured detects the side right angle X straightness of sides deviation are as follows: (c0-c1)/L1×100；
Square plate to be measured detects the side right angle X vertical direction curvature deviation are as follows: (d0-d1)/L1×100；
Wherein: L1The side right angle X, which is detected, for standard square plate sets length；
L2The side right angle Y, which is detected, for standard square plate sets length；
D is that standard square plate diagonal line sets length.
(9) step (1)-(8) are repeated, realize other right angles of square plate to be measured and the detection of side correlation geometric tolerance.
2. a kind of square plate geometric tolerance measurement method according to claim 1, it is characterised in that:
When square plate to be measured is square plate, rotates the square plate to be measured for 90 ° clockwise or counterclockwise, repeats step (6) --- (8),
Realize the measurement to other right angles of square plate to be measured and side geometric tolerance；
Square plate to be measured be rectangular slab when, remove square plate to be measured, by standard square plate compared with step (2) placement status clockwise or the inverse time
Needle, which is rotated by 90 °, to be reapposed on three supporting elements；Then step (3) and (4) are repeated, standard square plate is then removed, it will be to be measured
Square plate is relative to equidirectional 90 ° of the rotation of standard square plate, then repeatedly step (6), (7) and (8), realize to square plate to be measured other directly
The measurement of angle and side geometric tolerance.
3. a kind of square plate geometric tolerance measurement method according to claim 1, it is characterised in that: the corresponding support of standard square plate
The supporting point of structure is respectively 4-6mm apart from its immediate two sides distance of the standard square plate.
4. a kind of square plate geometric tolerance measurement method according to claim 1, it is characterised in that: the standard square plate detection
There are two the right angle side X Y-direction limit point is set, which is arranged in the standard square plate detection side right angle X both ends, two Y
Direction limit point away from respectively close to standard square plate side distance be 4-6mm, standard square plate detect the side right angle Y X-direction limit point away from
It is 4-6mm that the standard square plate, which detects right angle X back gauge,.
5. a kind of square plate geometric tolerance measurement method according to claim 1, it is characterised in that: the standard square plate detection
Right angle Y is on the side when standard square plate Parallel testing right angle X is arranged in side length test point, and the detection right angle side the Y side length is examined
Measuring point is 4-6mm away from distance at the detection side right angle Y outer end, and the detection right angle squareness separate-blas estimation point setting of standard square plate is detecting
On the right angle side Y, which is 4-6mm away from distance at the detection side right angle Y outer end.
6. a kind of square plate geometric tolerance measurement method according to claim 1, it is characterised in that: three supporting mechanisms
It is movably arranged.
7. a kind of square plate geometric tolerance measurement method according to claim 1, it is characterised in that: the angle displacement sensing
It is respectively laser displacement sensor that device, side length displacement sensor and straightness of sides, which pass device, first testing agency, the second detection machine
Structure and third testing agency are tangent displacement sensor.
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| CN111058551A (en) * | 2019-12-16 | 2020-04-24 | 北京工业大学 | Testing device for researching tolerance fit of industrial building parts |
| CN112880612A (en) * | 2021-01-13 | 2021-06-01 | 青岛高测科技股份有限公司 | Evaluation method for machining precision of squaring machine |
| CN113804147A (en) * | 2021-08-19 | 2021-12-17 | 东风柳州汽车有限公司 | Automatic detection device for straightness of automobile longitudinal beam plate |
| CN114413823A (en) * | 2021-12-29 | 2022-04-29 | 河南裕展精密科技有限公司 | Detection device and detection method |
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