CN110307814A

CN110307814A - A kind of full-automatic contact measuring apparatus and method

Info

Publication number: CN110307814A
Application number: CN201910646177.1A
Authority: CN
Inventors: 蒋知峰; 孔谅; 周春立; 金鑫; 张立中; 梁诚; 张悦
Original assignee: SHANGHAI BAOYE ELECTROMECHANICAL TECHNOLOGY Co Ltd; Shanghai Jiaotong University
Current assignee: SHANGHAI BAOYE ELECTROMECHANICAL TECHNOLOGY Co Ltd; Shanghai Jiaotong University
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2019-10-08
Anticipated expiration: 2039-07-17
Also published as: CN110307814B

Abstract

The present invention relates to a kind of full-automatic contact measuring apparatus and methods, measuring device include include testboard bay, longitudinal sliding motion be arranged on testboard bay and can fixed placement measured workpiece longitudinal slide unit and the crossbeam that is suspended from above testboard bay, being equipped on crossbeam can be along the measurement arm that it is moved back and forth.Compared with prior art, present invention is specifically directed to surface, there are the geometric dimensions of stomata and the large-size workpiece of burr to carry out quickly, the device of high-acruracy survey, with the size of tangent displacement sensor measurement workpiece, the drawbacks of avoiding existing measurement method, so that measuring device can be avoided the influence of workpiece surface stomata and burr to precision, keep the measurement of large-size workpiece more efficient, accurately, and it can adapt to more complicated workpiece configurations, thickness can be measured, verticality, the depth of parallelism, the sizes such as flatness, the cost of measuring device is lower simultaneously, maintenance and calibration are easier.

Description

A kind of full-automatic contact measuring apparatus and method

Technical field

The invention belongs to piece surface size measurement technique field, it is related to a kind of full-automatic contact measuring apparatus and side Method.

Background technique

It is usual to large scale shaggy porous material workpiece progress multiple spot length, width, the measurement of height equidimension It is difficult to ensure precision and efficiency.Such workpiece in actual production, the method for mostly using manual measurement greatly, the disadvantage is that artificial measurement Error is big, and measurement efficiency is low, large labor intensity, can only generally be able to achieve sampling observation, and there are quality risks out of control.In addition traditional Three-dimensional coordinates measurement equipment the size of workpiece is known by the position of record sensor and workpiece touching, this requires equipment itself must It must guarantee have higher dimensional accuracy in each measurement position, so that traditional three coordinate of large size for large-size workpiece is surveyed It is expensive to measure equipment price, use, the cost of maintenance are also relatively high；Furthermore traditional three-dimensional coordinates measurement equipment is difficult to realize to workpiece The measurement of bottom can only speculate the thickness of workpiece by measuring the height of workpiece surface, and can not obtain the accurate thickness of workpiece Degree.

Chinese patent CN108592816A, which is disclosed, a kind of measures large-size workpiece size by optical triangulation Scheme.The program is by realizing quickly detection to workpiece scanning.But the program has the following deficiencies:

1, usually there is stomata and burr in workpiece surface, cause interference to optical measurements；

2, the program can only scan the upper surface of workpiece, cannot achieve measurement to side and bottom surface, thus can not be completely anti- Mirror the geometric dimension of workpiece.In addition, if top surface edge existing defects can also interfere optical measurements.

Summary of the invention

It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of full-automatic contacts Measuring device and method.Specifically for surface, there are the progress of the geometric dimension of stomata and the large-size workpiece of burr is quick, high-precision The drawbacks of device for spending measurement measures the size of workpiece with tangent displacement sensor, avoids existing measurement method, makes Measuring device can be avoided the influence of workpiece surface stomata and burr to precision, make the measurement of large-size workpiece more efficiently, Accurately, and more complicated workpiece configurations be can adapt to, while the cost of measuring device is lower, maintenance and calibration are easier.

The purpose of the present invention can be achieved through the following technical solutions:

One of technical solution of the present invention is to propose a kind of full-automatic contact measuring apparatus, including testboard bay, Longitudinal sliding motion be arranged on testboard bay and can fixed placement measured workpiece longitudinal slide unit and be suspended from above testboard bay Crossbeam, on crossbeam be equipped with can along the measurement arm that it is moved back and forth,

The measurement arm includes the upper traversing pedestal that can transversely move back and forth on crossbeam, is mounted on upper traversing pedestal Elevating lever and be mounted on the first tangent displacement sensor component of elevating lever bottom end, the first contact displacement passes Sensor component is made of three classes tangent displacement sensor, respectively the Z- contact displacement sensing of measurement direction vertically downward Y-direction contact displacement sensing of the X of device, measurement direction transversely to tangent displacement sensor and measurement direction along longitudinal direction Device；

The jacking measurement portion that can transversely move back and forth is additionally provided on the testboard bay in longitudinal slide unit lower position, The jacking measurement portion includes the jacking pedestal that can be moved back and forth along testboard bay, the lifting jacked on pedestal is arranged in Plate, and it is mounted on lifter plate and is higher than a tangent displacement sensor on its top, the i.e. Z of measurement direction vertically upward + tangent displacement sensor.

Further, the X to tangent displacement sensor include the opposite X- tangent displacement sensor and X+ in direction Two kinds of tangent displacement sensor；

The Y-direction tangent displacement sensor includes the opposite Y- tangent displacement sensor in direction and the displacement of Y+ contact Two kinds of sensor；

And the tangent displacement sensor being arranged in the measurement arm and jacking measurement portion meets: X- contact displacement sensing Device, X+ tangent displacement sensor, Y- tangent displacement sensor, Y+ tangent displacement sensor, Z- contact displacement sensing Device and Z+ tangent displacement sensor are equipped at least one.

Further, measurement arm is equipped with two groups of mirror-image arrangement on crossbeam, uses two measurement arms while measure can be with The efficiency of lifting means, at this point, can dispense an X on each measurement arm to tangent displacement sensor.

Further, crossbeam can form gantry together with the perpendicular left column and right column for standing upright on testboard bay two sides Frame, is additionally provided with two parallel lines guide rails being arranged along the horizontal on crossbeam, and upper traversing pedestal can pass through this two straight lines Guide rail is removable to be arranged on crossbeam.Upper moving range of the traversing pedestal on crossbeam is not less than having in terms of measured workpiece length Effect measurement stroke.

Further, traversing driving assembly can be set on upper traversing pedestal, may include servomotor, gear reducer With the structures such as gear, the rack gear engaged with gear can be equally arranged in two linear guides of lateral arrangement.Likewise, lifting Also lifter rack can be set on bar, lifting driving assembly is provided on upper traversing pedestal (can be by servomotor, gear reducer and tooth The composition such as wheel), by engaging for lifting driving assembly and lifter rack, so that elevating lever and upper traversing pedestal liftable is mobile connects It connects.

Further, measurement arm bottom is fixedly installed mounting seat, and first contact is arranged in mounting seat Displacement sensor component.Tangent displacement sensor in first tangent displacement sensor component can then be pacified by sensor It fills in bracket setting mounting seat, mounting frame for sensor can use elongated overhanging structure, and such slim-lined construction make can be with Avoid measuring device and workpiece interference and collision when measuring the measuring surface of workpiece indent.

Further, jacking pedestal is equipped with riser guide, and lifter plate can realize lifting function by cooperating with riser guide Can, then it can arrange that the jacking cylinder connecting with lifter plate, jacking cylinder can be installed by such as cylinder on jacking pedestal Seat setting is on jacking pedestal.

Further, the tangent displacement sensor includes that sensor body and the edge elasticity in corresponding measurement direction are stretched The contact of contracting.

Further, the contact and the Maximum Contact width of measured workpiece measuring surface are not less than measured workpiece surface gas The diameter in hole.Preferably, contact width is not less than 4mm.The contact end of tangent displacement sensor is wider can be to avoid workpiece The stomata on surface influences measurement accuracy.

Preferably, so that the contact of the tangent displacement sensor on the surface of the material caused by pressure be not less than 0.07 Megapascal avoids the burr of workpiece surface from influencing detection accuracy to overcome the yield force of material surface burr.

Further, the end of the contact is additionally provided with contact roller, and the different contacts in same measurement direction The direction of the central axis of the contact roller of displacement sensor is consistent.The contact of tangent displacement sensor is set as cylindrical roller Can permit tangent displacement sensor and workpiece and there is opposite sliding, formula displacement sensor and workpiece can be avoided contact with because It is unexpected that sliding damage, and can in the detection process, when tangent displacement sensor and measured workpiece surface contact It can be moved in certain distance, realize continuous measurement, improve detection efficiency and precision, furthermore can be comforted by the rolling of idler wheel The burr of flat workpiece surface further promotes the precision of measurement.

Further, the tangent displacement sensor passes through sensor anticollison block respectively and is mounted on elevating lever or lifter plate On, the sensor anticollison block is mounted on elevating lever or lifter plate by magnetic device (preferably columnar magnet etc.) magnetic absorption On, and the distance on the top of the corresponding tangent displacement sensor of sensor anticollison block distance is passed no more than contact displacement The maximum license decrement of sensor.If sensor anticollison block or tangent displacement sensor occur laterally to touch with workpiece or equipment It hits, sensor anticollison block can integrally fall off from mounting frame for sensor with tangent displacement sensor, to avoid valuableness Sensor is damaged.If longitudinal impact, sensor anticollison block and equipment or work occur for sensor anticollison block and workpiece or equipment Part rigid contact can avoid contact with formula displacement sensor and be overly compressed, to play a protective role.

Further, the elevating lever inner hollow, and being disposed in middle vacancy can be along the piston that it is vertically moved The end position of bar and the lifting cylinder for being drivingly connected the piston rod, the piston rod installs the Z- contact displacement sensing Device.Tangent displacement sensor vertically downward can be to avoid measurement arm and longitudinal slide unit in measurement after passing through cylinders retract Table top interferes, especially when detecting close to the length or width size of workpiece bottom.

Further, the testboard bay is equipped with middle part horizontal support in the middle position of longitudinal slide unit stroke, at middle part It being set on horizontal support there are three the jacking measurement portion, two of them jacking measurement portion is located at longitudinal slide unit stroke two sides, Another jacking measuring point is below longitudinal slide unit stroke.Multiple jacking measurement portions can transversely realize multiple position thickness The measurement of size.

Further, it jacks between measurement portion and middle part horizontal support through the removable connection of traversing guide rail group, jacking Measurement portion can adjust the measurement that can transversely realize multiple position thickness with lateral position, can be passed with less displacement Sensor realizes the measurement of more measurement points.Preferably, cross is moved laterally through between middle part horizontal support and jacking measurement portion It moves rack gear and the traversing driving assembly engaged realizes that traversing driving assembly may include traversing gear, traversing driving motor Etc. structures, the lateral position of jacking measurement portion is positioned by motor driven, more surveys can be realized with less displacement sensor The measurement of point is measured, while keeping the measurement point of thickness more flexible and automating, avoids manually adjusting.

Further, longitudinal slide unit includes support ontology, and the frame structure of intermediate hollow out, the cross frame of hollow out can be used Frame structure makes described device when measurement side surface of workpiece is close to the measurement point of bottom surface, can be to avoid Z- tangent displacement sensor It is interfered with the table top of longitudinal slide unit.

Further, it is relatively set with longitudinal register plate and longitudinal register cylinder along longitudinal direction in the longitudinal slide unit, vertical The side that measured workpiece is contacted on positioning plate and longitudinal register cylinder is machined with longitudinal register face.Preferably, longitudinal register plate It respectively corresponds with longitudinal register cylinder equipped at least two, the mesa edge of slide unit is arranged laterally at a spacing along longitudinal direction.

Further, the testboard bay is equipped with front cross bracket in the front position of longitudinal slide unit stroke, in front It is fixed on horizontal support and is located at auxiliary of the two pieces of spacing of longitudinal slide unit two sides no more than measured workpiece lateral length Positioning plate, the side of auxiliary positioning plate towards the measured workpiece are machined with auxiliary positioning face, and when longitudinal slide unit is moved to survey When test stand frame front end, the auxiliary positioning face of auxiliary positioning plate and the longitudinal register face aligned coplanar of longitudinal register plate.

The two of technical solution of the present invention are to propose a kind of full-automatic contact measurement method, use it is above-mentioned it is complete from Dynamic contact measuring apparatus is implemented, which is divided into thickness measure, linear measure longimetry and width measurement Three models, wherein

Thickness measure step specifically:

(1-1) establishes the coordinate system based on X-axis, Y-axis and Z axis, makes to measure arm return home (X₀,Y₀,Z₀) and make to push up After liter measurement portion drops to bottom, the standard workpiece of known dimensions is placed at the measurement position in longitudinal slide unit, record standard Workpiece is in first thickness measurement position (X_T,Y_T,Z_T) with a thickness of T₀；

(1-2) traverse measurement arm and longitudinal slide unit make Z- tangent displacement sensor be in the first thickness measurement of setting Position (X_T,Y_T,Z_T) surface ready position, i.e. (X_T,Y_T,Z_T+ S), Z- tangent displacement sensor and standard work at this time The distance on the measured position surface of part is about S；

(1-3) measures the vertical dropping distance S+P of arm, makes the tangent displacement sensor contact workpiece upper surface Z- and makes it Contact is compressed (decrement is about P), while the Z+ displacement sensor for jacking measurement portion jacks up, and makes the contact of Z+ displacement sensor Standard workpiece lower surface is contacted, Z+ displacement sensor is compressed (decrement is about P), records Z- tangent displacement sensor respectively It by compression travel is P with Z+ tangent displacement sensor₁、P₂；

(1-4) measures arm lifting, jacking measurement portion decline, so that Z- tangent displacement sensor and the displacement of Z+ contact pass The contact of sensor is detached from standard workpiece surface；

(1-5) repeats the above steps (1-1)~step (1-4), records the thickness of remaining measurement position standard workpiece, and Corresponding Z- tangent displacement sensor is with Z+ tangent displacement sensor by compression travel；

(1-6) obtains first with measured workpiece alternate standard workpiece, and in the way of step (1-1)~step (1-4) Z- tangent displacement sensor at thickness measurement locations is with Z+ tangent displacement sensor by compression travel P₁`、P₂`, i.e. root According to formula be calculated measured workpiece at the first thickness measurement position above and below thickness T=T between two measuring surface₀+(P₁`- P₁)+(P₂`-P₂)；

(1-7) repeats step (1-6), and the Z- tangent displacement sensor for recording remaining measurement position measured workpiece connects with Z+ Touch displacement sensor corresponds to thickness by compression travel to get to remaining measurement position of measured workpiece；

Linear measure longimetry step specifically:

(2-1) makes to measure arm return home (X₀,Y₀,Z₀) and make to jack after measurement portion drops to bottom, by standard workpiece It is placed at the measurement position in longitudinal slide unit, two measurement point (X in the first linear measure longimetry position_LR,Y_L,Z_L) and (X_LL, Y_L,Z_L) between length dimension be known as L₀；

(2-2) traverse measurement arm and longitudinal slide unit make the contact of X- tangent displacement sensor be in the measurement point of setting (X_LR,Y_L,Z_L) on the right side of ready position, i.e. (X_LR+S,Y_L,Z_L), make the contact of X- tangent displacement sensor at this time and standard work The distance on part measured position surface is about S；

(2-3) measures arm along the direction X- moving distance S+P, makes the contact standard workpiece of X- tangent displacement sensor Measured position surface and compress (decrement is about P), record at this time X- tangent displacement sensor by compression travel be P₁；

(2-4) moves measurement arm along the direction X+, and the contact of X- tangent displacement sensor is made to be detached from standard workpiece surface；

(2-5) traverse measurement arm and longitudinal slide unit make the contact of L+ tangent displacement sensor be in the second length of setting Spend measurement position (X_LLY_L,Z_L) on the left of ready position, i.e. (X_LL-S,Y_L,Z_L), the contact of X+ tangent displacement sensor at this time Be about S at a distance from the surface of standard workpiece measured position；

(2-6) measures arm along the direction X+ moving distance S+P, makes the contact standard workpiece of X+ tangent displacement sensor Measured position surface is simultaneously compressed (decrement is about P), record at this time X+ tangent displacement sensor by compression travel be P₂；

(2-7) measurement arm is moved along the direction X-, and the contact of L+ tangent displacement sensor is made to be detached from standard workpiece surface；

(2-8) repeats the above steps (2-1)~step (2-7), the length of workpiece when being recorded in other linear measure longimetry positions, And correspond to measurement point X- tangent displacement sensor and X+ tangent displacement sensor；

(2-9) obtains the survey of the first length with measured workpiece alternate standard workpiece, and according to step (2-1)~step (2-7) Measure position when X- tangent displacement sensor and X+ tangent displacement sensor by compression travel P₁` and P₂` is tested to get arriving Length dimension L=L of the workpiece between corresponding two measurement points in the first linear measure longimetry position₀+(P₁`-P₁)+(P₂`-P₂)；

(2-10) repeats the above steps (2-9), that is, measures the length dimension value of remaining linear measure longimetry position of measured workpiece；

Width measurement step specifically:

(3-1) makes to measure arm return home (X₀,Y₀,Z₀) and make to jack after measurement portion drops to bottom, by known dimensions Standard workpiece be placed at the first width measurement location in longitudinal slide unit, the standard workpiece is in the first width measurement location Two measurement point (X_W,Y_WF,Z_W) and (X_W,Y_WB,Z_W) between width dimensions be known as W₀；

(3-2) measures arm and longitudinal slide unit, and the contact of Y+ tangent displacement sensor is made to be in the measurement point (X of setting_W, Y_WF,Z_W) in front of ready position, i.e. (X_W,Y_WF-S,Z_W), the contact of Y+ tangent displacement sensor and workpiece measured position at this time The distance for setting surface is about S；

(3-3) longitudinal slide unit makes the contact standard work of Y+ tangent displacement sensor along the direction Y- moving distance S+P Part measured position surface is simultaneously compressed (decrement is about P), record at this time Y+ tangent displacement sensor by compression travel be P₁；

(3-4) longitudinal slide unit is moved along the direction Y+, and the contact of Y+ tangent displacement sensor is made to be detached from measured workpiece surface；

(3-5) traverse measurement arm and longitudinal slide unit make the contact of Y- tangent displacement sensor be in the measurement point of setting (X_W,Y_WB,Z_W) rear ready position, i.e. (X_W,Y_WB+S,Z_W), the contact of Y- tangent displacement sensor and workpiece are tested at this time The distance of surface of position is about S；

(3-6) makes longitudinal slide unit along the direction Y+ moving distance S+P, makes the contact standard of Y- tangent displacement sensor Workpiece measured position surface simultaneously compresses (decrement is about P), and Y- tangent displacement sensor is record by compression travel at this time P₂；

(3-7) longitudinal slide unit is moved along the direction Y-, and the contact of Y- tangent displacement sensor is made to be detached from workpiece surface；

(3-8) repeats the above steps (3-1)~step (3-7), standard workpiece when being recorded in other width measurement locations Width dimensions and Y- tangent displacement sensor and Y+ tangent displacement sensor being compressed in corresponding two measurement points Run-length data；

(3-9), according to step (3-1)~step (3-7), obtains surveying in the first width with measured workpiece alternate standard workpiece Measure position when Y- tangent displacement sensor and Y+ tangent displacement sensor by compression travel data P₁` and P₂` is to get arriving Width dimensions W=W of the measured workpiece between corresponding two measurement points of the first width measurement location₀+(P₁`-P₁)+(P₂`-P₂)；

(3-10) repeats step (3-9), i.e. measurement obtains the width dimensions value of remaining width measurement location of measured workpiece.

Further, the different survey in left and right two of the arm difference a certain measurement position of synchro measure can be measured by two Point is measured, it in this way can be with the efficiency of lifting means.

Further, during thickness, width and linear measure longimetry, distance P, which is approximately equal to corresponding tangent displacement sensor, to be had The half of effect measurement stroke.The step for purpose be the placement position for making measuring device allow workpiece most possibly Deviation, i.e. workpiece placement position deviation maximum can achieve sensor be effectively compressed stroke two/.

Further, the value of distance S is greater than the value of distance P, in addition, before measurement, when tangent displacement sensor is in standard When standby position, i.e. criterion distance workpiece or measured workpiece surface distance are S, moving contact formula displacement sensor is near the mark workpiece Or measured workpiece to distance is P, in moving process, if the decrement of detection tangent displacement sensor is greater than 0, is stopped immediately Following detection step is moved and exits, meanwhile, prompt standard workpiece or measured workpiece placement position deviation excessive.The step for Purpose is avoided in measurement because workpiece puts the possibility that deviation leads to equipment and detected workpiece collides and cause damage, most The deviation safe range allowed greatly i.e. ± P.

It further, further include measurement coordinate position (X first before the size of measurement length direction_LL-S,Y_L1,Z_L1) and (X_LR+S,Y_L1,Z_L1) at thickness the step of, measurement width direction size before further include first measurement coordinate position (X_W1,Y_WB-S,Z_W1) and (X_W1,Y_WF+S,Z_W1) at thickness the step of, and if these position workpiece thickness measure Z- displacement sensor contact, which detects, in the process stops mobile immediately and exits subsequent step when decrement is greater than 0, prompt simultaneously Workpiece placement position deviation is excessive；The step for purpose be to be avoided in measurement because workpiece puts deviation and leads to equipment and quilt Detection workpiece collides and causes the possibility of damage.

Further, in thickness calibration and measurement process, it is also possible that longitudinal slide unit moves or makes along Y-direction Measurement arm moves in X direction, makes rolling of the contact of tangent displacement sensor close to measured workpiece surface along contact upper roller Direction is moved to next measurement point, and the step of recording measurement data；

Equally, in length dimension calibration and measurement process, it is also possible that longitudinal slide unit moves along Y-direction or makes to measure Arm is moved along Z-direction, makes rotating direction of the contact of tangent displacement sensor close to measured workpiece surface along contact upper roller It is moved to next measurement point, and the step of recording measurement data；

In width dimensions calibration and measurement process, further includes making measurement arm in X direction or Z-direction movement, make contact The contact of displacement sensor is moved to next measurement point along the rotating direction of contact upper roller close to measured workpiece surface, and records The step of measurement data.The step for purpose on the one hand can be quickly obtained the data of multiple measurement points, save time of measuring, Promote measurement efficiency；On the other hand, the burr of workpiece surface can be smoothed by the rolling of idler wheel, further promote the essence of measurement Degree.

In a kind of specific embodiment of the invention, before thickness calibration and measuring process 1-3, further include Lifting cylinder movement, the step of ejecting piston rod, stretch out Z- tangent displacement sensor；

After thickness calibration and measuring process, further includes lifting cylinder movement, withdraw piston rod, make Z- contact The step of displacement sensor retracts；

Compared with prior art, the invention has the following advantages that

(1) traditional three coordinate measuring machine is compared, the present invention measures workpiece using high-precision tangent displacement sensor, leads to The size of the measured value acquisition workpiece of comparison reference workpiece and practical work piece is crossed, initial alignment position and measurement position are same positions Set, measurement accuracy depend on equipment repetitive positioning accuracy and sensor measurement accuracy, and with the straightness of equipment itself and The factors such as the linearity are unrelated, and the required precision to equipment itself, thus equipment are reduced while realizing compared with high measurement accuracy Cost is lower, and maintenance and calibration are easier.

(2) multiple tangent displacement sensors have been fixedly mounted on the measurement arm of apparatus of the present invention, can not only have realized more The measurement of kind dimension data, and structure is simple, stable accuracy, it is easy to maintain.

(3) present invention uses contact type measurement method, and contact of the tangent displacement sensor end with measured surface is wide Degree is greater than the diameter of workpiece surface stomata, and the ejecting force of tangent displacement sensor probe can overcome bending for workpiece surface burr Power is taken, the interference of the stomata and burr of workpiece surface to measurement result is avoided, it can be effective compared to using measuring method Improve measurement accuracy.

(4) present invention is of less demanding to the placement position of workpiece, as long as the offset that workpiece is put is less than displacement sensor The half of measurement stroke can be realized as measuring, if the offset that workpiece is put is more than limitation, can lead in measuring process It crosses displacement sensor intelligently to detect and alarm, effectively prevents that expensive sensor is collided and damaged in measurement process.Together When, positioning can be clamped to workpiece by positioning cylinder, positioning plate and the auxiliary positioning plate in longitudinal slide unit, further The influence for avoiding the placement position deviation of workpiece enables a device to automatic reliably execution measurement movement.

(5) the carry out dimensional measurement that the present invention can disposably to workpiece multiple location, can be to work by two measurement arms The measuring surface of part two sides measures simultaneously, and jack measurement portion by three bottoms the thickness to three positions of workpiece can carry out simultaneously Measurement, improves the efficiency of measurement, while the measurement to the depth of parallelism or flatness of workpiece surface being made to provide possibility.

(6) apparatus of the present invention are provided with magnetic-type tangent displacement sensor anticollison block, can effectively avoid measurement process The sensor of middle collision and damage valuableness, reduces the cost of plant maintenance.

(7) longitudinal slide unit of the invention uses the frame structure of cross hollow out, and tangent displacement sensor is in measurement workpiece The tangent displacement sensor of bottom will not be interfered with table top when the lower measurement point in side；Bottom jacks measurement portion simultaneously The bottom surface of measurement workpiece can be ejected from hollow part, in addition, elongated mounting frame for sensor and Telescopic-cylinder structure are into one Step enhances the ability of tangent displacement sensor measurement workpiece complex surface, reduces interference region, increasing equipment can survey The range taken measurements.Furthermore this frame form is also convenient for artificial operation of feeding and discharging, and convenient manually in equipment to workpiece Size carries out review measurement.

(8) present invention employs crossbeams to fix, and longitudinal slide unit is removable, and bottom jacking measurement portion is fixed position along longitudinal direction Structure, upper and lower measuring unit can measure the upper and lower surface of workpiece simultaneously, realize measurement workpiece with more succinct structure The function of thickness, equipment cost have obtained effective control.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of full-automatic contact measuring apparatus；

Fig. 2 is the structural schematic diagram of testboard bay part；

Fig. 3 is the structural schematic diagram for jacking measurement portion；

Fig. 4 is the structural schematic diagram for measuring arm；

Fig. 5 is the schematic diagram after the cutting of measurement arm；

Fig. 6 is the structural schematic diagram of longitudinal slide unit；

Fig. 7 is the measuring surface of measured workpiece and the schematic diagram of measurement point；

Description of symbols in figure:

101 be right column, and 102 be left column, and 103 be crossbeam, and 104 be cross slide way group；

201 be the first measurement arm, and 202 second measurement arms, 203 be upper traversing pedestal, and 204 be lifting driving assembly, and 205 are Traversing driving assembly；

300 be elevating lever, and 301 be mounting frame for sensor, and 302 be sensor anticollison block, and 303 be contact displacement sensing Device, 304 be idler wheel, and 305 be columnar magnet, and 306 be lifter rack, and 307 be Z- tangent displacement sensor, and 308 contact for X- Formula displacement sensor, 309 be Y+ tangent displacement sensor, and 310 be Y- tangent displacement sensor, and 311 be X+ contact position Displacement sensor, 312 be mounting seat, and 313 be piston rod, and 314 be lifting cylinder；

400 be longitudinal slide unit, and 401 be longitudinal register plate, and 402 be longitudinal register cylinder, and 403 be support ontology；

501 be the first jacking measurement portion, and 502 be the second jacking measurement portion, and 503 jack measurement portion for third, and 504 be jacking Pedestal, 505 be riser guide, and 506 be cylinder mounting base, and 507 be jacking cylinder, and 508 be lifter plate, and 509 be Z+ contact position Displacement sensor；

600 be testboard bay, and 601 be front cross bracket, and 602 be middle part horizontal support, and 603 be slide unit guide rail group, 604 It is traversing guide rail group for slide unit rack gear, 605,606 be traversing rack gear, and 607 be auxiliary positioning plate；

700 be measured workpiece.

Specific embodiment

The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to Following embodiments.

The invention proposes a kind of full-automatic contact measuring apparatus, referring to Figure 1 and shown in Fig. 3 etc., including testboard Frame 600, longitudinal sliding motion are arranged on testboard bay 600 and can the longitudinal slide units 400 of fixed placement measured workpiece 700 and outstanding Crossbeam 103 above testboard bay 600, on crossbeam 103 be equipped with can along the measurement arm that it is moved back and forth,

The measurement arm include the upper traversing pedestal 203 that can transversely move back and forth on crossbeam 103, be mounted on it is upper traversing Elevating lever 300 on pedestal 203 and the first tangent displacement sensor component for being mounted on 300 bottom end of elevating lever, described One tangent displacement sensor component is made of five tangent displacement sensors 303, and respectively measurement direction is vertically downward The X- tangent displacement sensor 308 and X+ contact that Z- tangent displacement sensor 307, measurement direction are transversely oppositely arranged Y- tangent displacement sensor 310 and Y+ the contact displacement that displacement sensor 311 and measurement direction are oppositely arranged along longitudinal direction Sensor 309；

The jacking that can transversely move back and forth is additionally provided in 400 lower position of longitudinal slide unit on the testboard bay 600 Measurement portion, the jacking measurement portion include the jacking pedestal 504 that can be moved back and forth along testboard bay 600, setting jacking Lifter plate 508 on pedestal 504, and it is mounted on lifter plate 508 and is higher than a tangent displacement sensor on its top 303, i.e. the Z+ tangent displacement sensor 509 of measurement direction vertically upward.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 1, measurement arm is equipped on crossbeam 103 Two groups of mirror-image arrangement, use two measurement arms while measurement can be with the efficiency of lifting means.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 1, crossbeam 103 can be stood upright on perpendicular The left column 102 and right column 101 of 600 two sides of testboard bay form portal frame together, and transversely cloth is additionally provided on crossbeam 103 The two parallel lines guide rails set, upper traversing pedestal 203 can by this two linear guide (i.e. cross slide way group 104) Movement is arranged on crossbeam 103.Upper moving range of the traversing pedestal 203 on crossbeam 103 is not less than 700 length side of measured workpiece Effective measurement stroke in face.

In more specific embodiment, refers to shown in Fig. 4 and Fig. 5, traversing driving can be set on upper traversing pedestal 203 Component 205 may include the structures such as servomotor, gear reducer and gear, equally may be used in two linear guides of lateral arrangement To arrange the rack gear engaged with gear.Likewise, lifter rack 306 also can be set on elevating lever 300, upper traversing pedestal 203 On be provided with lifting driving assembly 204 (can be made of servomotor, gear reducer and gear etc.), pass through lifting driving assembly 204 With engaging for lifter rack 306 so that elevating lever 300 and upper traversing 203 liftable mobile connection of pedestal.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 4 and Fig. 5, the fixation of measurement arm bottom is set It is equipped with mounting seat 312, the first tangent displacement sensor component is arranged in mounting seat 312.First contact position Then mounting seat 312 can be arranged by mounting frame for sensor 301 in tangent displacement sensor 303 in displacement sensor component On, mounting frame for sensor 301 can use elongated overhanging structure, and such slim-lined construction makes can be to avoid in measurement workpiece Measuring device and workpiece interference and collision when recessed measuring surface.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 3, jacking pedestal 504 is equipped with lifting Guide rail 505, lifter plate 508 can realize elevating function by cooperating with riser guide 505, then can be on jacking pedestal 504 Arrange that the jacking cylinder 507 connecting with lifter plate 508, jacking cylinder 507 can pass through the structure settings such as such as cylinder mounting base 506 On jacking pedestal 504.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 4 and Fig. 5, the contact displacement is passed Sensor 303 includes sensor body and the contact along the elastic telescopic in corresponding measurement direction.

Further, the contact and the Maximum Contact width of 700 measuring surface of measured workpiece are not less than measured workpiece 700 The diameter of surface pores.Preferably, contact width is not less than 4mm.The contact end of tangent displacement sensor 303 is wider can be with Avoiding the stomata of workpiece surface influences measurement accuracy.

Further, it so that the compressed power of the contact of the tangent displacement sensor 303 is not less than 1N, that is, contacts Generated pressure is about 0.0796 megapascal to the contact of formula sensor on the surface of the material, in this way can be to avoid the burr of workpiece surface Influence detection accuracy.

Further, the end of the contact is additionally provided with contact roller 304, and the different contacts in same measurement direction The direction of the central axis of the contact roller 304 of formula displacement sensor 303 is consistent.The contact of tangent displacement sensor 303 is arranged It can permit tangent displacement sensor 303 for cylindrical roller 304 and workpiece have opposite sliding, formula position can be avoided contact with Displacement sensor 303 is damaged with workpiece because surprisingly sliding, and can work as tangent displacement sensor in the detection process 303 can move with 700 surface contact of measured workpiece in certain distance, realize continuous measurement, improve detection efficiency and essence Furthermore degree can smooth the burr of workpiece surface by the rolling of idler wheel 304, further promote the precision of measurement.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 5 etc., the tangent displacement sensor 303 are mounted on elevating lever 300 or lifter plate 508 by sensor anticollison block 302 respectively, and the sensor anticollison block 302 is logical It crosses magnetic device (preferably columnar magnet 305) magnetic absorption to be mounted on elevating lever 300 or lifter plate 508, and the sensor The distance on top of the anticollison block 302 apart from corresponding tangent displacement sensor 303 is no more than the tangent displacement sensor 303 Maximum license decrement.If sensor anticollison block 302 or tangent displacement sensor 303 occur laterally to touch with workpiece or equipment It hits, sensor anticollison block 302 can integrally fall off from mounting frame for sensor 301 with tangent displacement sensor 303, to keep away Exempt from expensive sensor to be damaged.If longitudinal impact, sensor anticollison block occur for sensor anticollison block 302 and workpiece or equipment 302, which can avoid contact with formula displacement sensor 303 with equipment or workpiece rigid contact, is overly compressed, and makees to play protection With.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 5,300 inner hollow of elevating lever, And it is disposed in middle vacancy and along piston rod 313 that it is vertically moved and the lifting air of the piston rod 313 can be drivingly connected The end position of cylinder 314, the piston rod 313 installs the Z- tangent displacement sensor 307.Contact position vertically downward Displacement sensor 303 by after cylinders retract can to avoid measurement when measurement arm and the table top of longitudinal slide unit 400 interfere, especially It is when detecting close to the length or width size of workpiece bottom.

It in a kind of specific embodiment of the invention, refers to shown in Fig. 2 and Fig. 6, the testboard bay 600 is vertical It is equipped with middle part horizontal support 602 to the middle position of 400 stroke of slide unit, is set on middle part horizontal support 602 there are three the top Measurement portion is risen, two of them jacking measurement portion is located at 400 stroke two sides of longitudinal slide unit, another jacking measuring point is in vertical To below 400 stroke of slide unit.Multiple jacking measurement portions can transversely realize the measurement of multiple position thickness.

Further, it referring again to shown in Fig. 2 and Fig. 6 etc., jacks and passes through between measurement portion and middle part horizontal support 602 The removable connection of traversing guide rail group 605, jacking measurement portion can be adjusted with lateral position can transversely realize multiple position thickness The measurement of size can realize the measurement of more measurement points with less displacement sensor.Preferably, middle part horizontal support 602 Jacking measurement portion between move laterally through traversing rack gear 606 and the traversing driving assembly 205 engaged realization, it is traversing Driving assembly 205 may include the structures such as traversing gear, traversing driving motor, and the cross of jacking measurement portion is positioned by motor driven To position, the measurement of more measurement points can be realized with less displacement sensor, while making the measurement point of thickness more It flexibly and automates, avoids manually adjusting.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 2 and Fig. 6 etc., longitudinal slide unit 400 includes Ontology 403 is supported, the frame structure of intermediate hollow out can be used, the cross frame structure of hollow out makes described device in measurement workpiece When side is close to the measurement point of bottom surface, it can occur to avoid Z- tangent displacement sensor 307 and the table top of longitudinal slide unit 400 Interference.Longitudinal slide unit 400 can be cooperated by slide unit guide rail group 603 and 600 longitudinal sliding motion of testboard bay, in slide unit guide rail group 603 Side is also provided with the slide unit rack gear 604 engaged with the longitudinal gear for the zigzag tread patterns part being arranged in longitudinal slide unit 400.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 2 and Fig. 6 etc., the longitudinal slide unit 400 On be relatively set with longitudinal register plate 401 and longitudinal register cylinder 402 along longitudinal direction, in longitudinal register plate 401 and longitudinal register gas The side that measured workpiece 700 is contacted on cylinder 402 is machined with longitudinal register face.Preferably, longitudinal register plate 401 and longitudinal register gas Cylinder 402 is respectively corresponded equipped at least two, and the mesa edge of slide unit 400 is arranged laterally at a spacing along longitudinal direction.

In a kind of specific embodiment of the invention, referring again to shown in Fig. 2 and Fig. 6 etc., the testboard bay 600 It is equipped with front cross bracket 601 in the front position of 400 stroke of longitudinal slide unit, is fixed on front cross bracket 601 point Not Wei Yu 400 two sides of longitudinal slide unit two pieces of spacing be no more than 700 lateral length of measured workpiece auxiliary positioning plate 607, it is described The side of auxiliary positioning plate 607 towards measured workpiece 700 is machined with auxiliary positioning face, and when longitudinal slide unit 400 is moved to test When 600 front end of rack, the auxiliary positioning face of auxiliary positioning plate 607 and the longitudinal register face aligned coplanar of longitudinal register plate 401.

Thickness measure step specifically:

(1-1) establishes the coordinate system based on X-axis, Y-axis and Z axis, makes to measure arm return home (X₀,Y₀,Z₀) and make to push up After liter measurement portion drops to bottom, the standard workpiece of known dimensions is placed at the measurement position in longitudinal slide unit 400, record mark Quasi- workpiece is in first thickness measurement position (X_T,Y_T,Z_T) with a thickness of T₀；

(1-2) traverse measurement arm and longitudinal slide unit 400 make Z- tangent displacement sensor 307 be in the first thickness of setting Spend measurement position (X_T,Y_T,Z_T) surface ready position, i.e. (X_T,Y_T,Z_T+ S), Z- tangent displacement sensor 307 at this time Be about S at a distance from the measured position surface of standard workpiece；

(1-3) measures the vertical dropping distance S+P of arm, makes 307 contact workpiece upper surface of Z- tangent displacement sensor and makes It obtains its contact and is compressed (decrement is about P), while the Z+ displacement sensor for jacking measurement portion jacks up, and makes Z+ displacement sensor Contact standard workpiece lower surface, Z+ displacement sensor are compressed (decrement is about P), are recorded the displacement of Z- contact respectively and are passed Sensor 307 and Z+ tangent displacement sensor 509 are P by compression travel₁、P₂；

(1-4) measures arm lifting, jacking measurement portion decline, so that Z- tangent displacement sensor 307 and Z+ contact position The contact of displacement sensor 509 is detached from standard workpiece surface；

(1-5) repeats the above steps (1-1)~step (1-4), records the thickness of remaining measurement position standard workpiece, and Corresponding Z- tangent displacement sensor 307 is with Z+ tangent displacement sensor 509 by compression travel；

(1-6) is obtained with 700 alternate standard workpiece of measured workpiece, and in the way of step (1-1)~step (1-4) Z- tangent displacement sensor 307 at first thickness measurement position is with Z+ tangent displacement sensor 509 by compression travel P₁`、P₂`, i.e., according to formula be calculated measured workpiece 700 at the first thickness measurement position above and below between two measuring surface Thickness T=T₀+(P₁`-P₁)+(P₂`-P₂)；

(1-7) repeats step (1-6), records the Z- tangent displacement sensor 307 of remaining measurement position measured workpiece 700 With Z+ tangent displacement sensor 509 by compression travel to get to the corresponding thickness of measured workpiece 700 remaining measurement position；

Linear measure longimetry step specifically:

(2-1) makes to measure arm return home (X₀,Y₀,Z₀) and make to jack after measurement portion drops to bottom, by standard workpiece It is placed at the measurement position in longitudinal slide unit 400, two measurement point (X in the first linear measure longimetry position_LR,Y_L,Z_L) and (X_LL,Y_L,Z_L) between length dimension be known as L₀；

(2-2) traverse measurement arm and longitudinal slide unit 400 make the contact of X- tangent displacement sensor 308 be in setting Measurement point (X_LR,Y_L,Z_L) on the right side of ready position, i.e. (X_LR+S,Y_L,Z_L), make the touching of X- tangent displacement sensor 308 at this time Head is about S at a distance from the surface of standard workpiece measured position；

(2-3) measures arm along the direction X- moving distance S+P, makes the contact standard of X- tangent displacement sensor 308 The measured position surface of workpiece is simultaneously compressed (decrement is about P), record at this time X- tangent displacement sensor 308 by compressed line Journey is P₁；

(2-4) moves measurement arm along the direction X+, and the contact of X- tangent displacement sensor 308 is made to be detached from standard workpiece table Face；

(2-5) traverse measurement arm and longitudinal slide unit 400 make the contact of L+ tangent displacement sensor 303 be in setting Second linear measure longimetry position (X_LL Y_L,Z_L) on the left of ready position, i.e. (X_LL-S,Y_L,Z_L), X+ tangent displacement sensor at this time 311 contact is about S at a distance from the surface of standard workpiece measured position；

(2-6) measures arm along the direction X+ moving distance S+P, makes the contact standard of X+ tangent displacement sensor 311 Workpiece measured position surface is simultaneously compressed (decrement is about P), record at this time X+ tangent displacement sensor 311 by compression travel For P₂；

(2-7) measurement arm is moved along the direction X-, and the contact of L+ tangent displacement sensor 303 is made to be detached from standard workpiece table Face；

(2-8) repeats the above steps (2-1)~step (2-7), the length of workpiece when being recorded in other linear measure longimetry positions, And correspond to measurement point X- tangent displacement sensor 308 and X+ tangent displacement sensor 311；

(2-9) it is long to obtain first with 700 alternate standard workpiece of measured workpiece, and according to step (2-1)~step (2-7) X- tangent displacement sensor 308 and X+ tangent displacement sensor 311 by compression travel P when spending measurement position₁` and P₂`, Obtain length dimension L=L of the measured workpiece 700 between corresponding two measurement points in the first linear measure longimetry position₀+(P₁`-P₁)+ (P₂`-P₂)；

(2-10) repeats the above steps (2-9), that is, measures the length dimension of remaining the linear measure longimetry position of measured workpiece 700 Value；

Width measurement step specifically:

(3-1) makes to measure arm return home (X₀,Y₀,Z₀) and make to jack after measurement portion drops to bottom, by known dimensions Standard workpiece be placed at the first width measurement location in longitudinal slide unit 400, the standard workpiece is in the first width measurement position The two measurement point (X set_W,Y_WF,Z_W) and (X_W,Y_WB,Z_W) between width dimensions be known as W₀；

(3-2) measures arm and longitudinal slide unit 400, and the contact of Y+ tangent displacement sensor 309 is made to be in the measurement of setting Point (X_W,Y_WF,Z_W) in front of ready position, i.e. (X_W,Y_WF-S,Z_W), the contact and work of Y+ tangent displacement sensor 309 at this time The distance on part measured position surface is about S；

(3-3) longitudinal slide unit 400 makes the contact of Y+ tangent displacement sensor 309 along the direction Y- moving distance S+P Standard workpiece measured position surface simultaneously compresses (decrement is about P), and Y+ tangent displacement sensor 309 is compressed record at this time Stroke is P₁；

(3-4) longitudinal slide unit 400 is moved along the direction Y+, and the contact of Y+ tangent displacement sensor 309 is made to be detached from tested work 700 surface of part；

(3-5) traverse measurement arm and longitudinal slide unit 400 make the contact of Y- tangent displacement sensor 310 be in setting Measurement point (X_W,Y_WB,Z_W) rear ready position, i.e. (X_W,Y_WB+S,Z_W), the contact of Y- tangent displacement sensor 310 at this time Be about S at a distance from the surface of workpiece measured position；

(3-6) makes longitudinal slide unit 400 along the direction Y+ moving distance S+P, connects the contact of Y- tangent displacement sensor 310 Touching standard workpiece measured position surface is simultaneously compressed (decrement is about P), and record at this time pressed by Y- tangent displacement sensor 310 Indention journey is P₂；

(3-7) longitudinal slide unit 400 is moved along the direction Y-, and the contact of Y- tangent displacement sensor 310 is made to be detached from workpiece table Face；

(3-8) repeats the above steps (3-1)~step (3-7), standard workpiece when being recorded in other width measurement locations Width dimensions and Y- tangent displacement sensor 310 and Y+ tangent displacement sensor 309 are in corresponding two measurement points By compression travel data；

(3-9) is obtained wide first with 700 alternate standard workpiece of measured workpiece according to step (3-1)~step (3-7) Y- tangent displacement sensor 310 and Y+ tangent displacement sensor 309 by compression travel data P when spending measurement position₁` and P₂` is to get the width dimensions W=W to measured workpiece 700 between corresponding two measurement points of the first width measurement location₀+(P₁`- P₁)+(P₂`-P₂)；

(3-10) repeats step (3-9), i.e. measurement obtains the width dimensions of 700 remaining width measurement location of measured workpiece Value.

In a kind of specific embodiment of the invention, a certain measurement position of synchro measure can be distinguished by two measurement arms The different measurement point in left and right two for setting place, in this way can be with the efficiency of lifting means.

In a kind of specific embodiment of the invention, during thickness, width and linear measure longimetry, distance P is approximately equal to The half of corresponding tangent displacement sensor 303 effectively measurement stroke.The step for purpose be to keep measuring device maximum Possibly allow the deviation of the placement position of workpiece, i.e. workpiece placement position deviation maximum can achieve sensor and be effectively compressed row The two of journey/.

In a kind of specific embodiment of the invention, the value of distance S is greater than the value of distance P, in addition, before measurement, when Tangent displacement sensor 303 is in ready position, i.e., mobile when criterion distance workpiece or 700 surface distance of measured workpiece are S Workpiece or measured workpiece 700 to the distance that is near the mark of tangent displacement sensor 303 is P, in moving process, if detection contact The decrement of displacement sensor 303 is greater than 0, then stops mobile immediately and exit following detection step, meanwhile, prompt standard workpiece Or 700 placement position deviation of measured workpiece is excessive.The step for purpose be to be avoided in measurement because workpiece is put deviation and led Equipment and detected workpiece is caused to collide and cause the possibility of damage, maximum allowable deviation safe range is ± P.

It further include that measurement first is sat before the size of measurement length direction in a kind of specific embodiment of the invention Cursor position (X_LL-S,Y_L1,Z_L1) and (X_LR+S,Y_L1,Z_L1) at thickness the step of, measurement width direction size before also Including measuring coordinate position (X first_W1,Y_WB-S,Z_W1) and (X_W1,Y_WF+S,Z_W1) at thickness the step of, and if this Z- displacement sensor contact, which detects, during the thickness measure of a little positions workpiece stops mobile immediately and moves back when decrement is greater than 0 Subsequent step out, while prompting workpiece placement position deviation excessive；The step for purpose be to avoid in measurement because of workpiece Put the possibility that deviation leads to equipment and detected workpiece collides and cause damage.

In a kind of specific embodiment of the invention, in thickness calibration and measurement process, it is also possible that Longitudinal slide unit 400 moves along Y-direction or moves measurement arm in X direction, makes the contact of tangent displacement sensor 303 close to quilt It surveys 700 surface of workpiece and is moved to next measurement point, and the step of recording measurement data along the rotating direction of contact upper roller 304；

Equally, in length dimension calibration and measurement process, it is also possible that longitudinal slide unit 400 moves or makes along Y-direction Measurement arm is moved along Z-direction, makes the contact of tangent displacement sensor 303 close to 700 surface of measured workpiece along contact upper roller 304 rotating direction is moved to next measurement point, and the step of recording measurement data；

In width dimensions calibration and measurement process, further includes making measurement arm in X direction or Z-direction movement, make contact Rotating direction of the contact of displacement sensor 303 close to 700 surface of measured workpiece along contact upper roller 304 is moved to next measurement Point, and the step of recording measurement data.The step for purpose on the one hand can be quickly obtained the data of multiple measurement points, save Time of measuring promotes measurement efficiency；On the other hand, the burr of workpiece surface can be smoothed by the rolling of idler wheel 304, further Promote the precision of measurement.

It further include rising before thickness calibration and measuring process in a kind of specific embodiment of the invention The step of sending down abnormally ascending cylinder 314 acts, and ejects piston rod 313, stretches out Z- tangent displacement sensor；

After thickness calibration and measuring process 1-4, further includes that lifting cylinder 314 acts, withdraw piston rod, make Z- The step of tangent displacement sensor retracts；Above each embodiment can be with any independent implementation, can also arbitrarily two-by-two or more More combinations is implemented.

Embodiment 1:

Typical measurement workpiece is as shown in Fig. 7, and 700 thickness direction of measured workpiece is the face A and the face B, positioned opposite to have 9 Measuring point, respectively A1~A9；Length direction is the face E and the face F, and positioned opposite there are four measuring points, i.e. E3~E6；Perpendicular to the face E and F The direction that face is directed toward on the inside of workpiece is denoted as L-, is directed toward the direction on the outside of workpiece and is denoted as L+；Width direction is the face C and the face D, opposite cloth Measuring point, i.e. C3~C6 there are four setting；In addition, being parallel to length and width towards workpiece in the length of workpiece and the angle of width Internal blas certain distance, to form four unfilled corners, the depth of unfilled corner is denoted as angular length along its length, in the width direction unfilled corner Depth be denoted as angular width, angular length and angular width are referred to as pull, as E1, E2 in Fig. 7, C1, C2, F1, F2, C7, C8, E7, E8, D1, Shown in D2, F7, F8, D7, D8；Particularly, since part workpiece is divided into upper layer and lower layer, the width or length of lower layer are greater than upper layer, Step shape is formed in the edge of work, needs the measurement to step depth.Workpiece material is that the polyurethane of glass fiber reinforcement is sent out Plate is steeped, by excision forming, stomata and fiber protrusion shape protrusion that surface has a little diameter to be no more than 4mm.

Full-automatic contact type measurement machine coordinate system is as follows: X-axis is defined as measurement arm along the direction that crossbeam 103 moves, ginseng Attached drawing 1 is examined, is X+ along the direction definition of crossbeam 103 from left to right；The mobile direction definition of longitudinal slide unit 400 is Y-direction, reference Attached drawing 1, the direction of slide unit 400 from front to back is Y+ along longitudinal direction；The direction for being transversely to the machine direction slide unit 400 is Z-direction, vertically upward Mode be Z+.

When measured workpiece 700 is placed in longitudinal slide unit 400, C face paste is against the positioning of 400 front end baffle of longitudinal slide unit Face, and the lateral position of measurement point A4~6 is aligned with intermediate 303 contact position of tangent displacement sensor.

Full-automatic contact type measurement machine control system is made of PLC system etc., which controls full-automatic contact and survey Each kinematic axis, Pneumatic component, sensor data acquisition and the data of amount machine calculate；Furthermore it is also possible to include that host computer is soft Part realizes the choosing with the communication of PLC, the establishment of measuring point measuring sequence, data inputting, parameter setting and measurement formula by it It selects；The upper computer software is deployed in touch screen, and data inputting, parameter setting, workpiece type may be implemented by touch screen Selection, the functions such as measuring process is worked out and measurement result is shown.

For above-mentioned measured workpiece 700, a left side is provided on full-automatic contact type measurement machine crossbeam 103 provided in this embodiment Right two measurement arms, every side measure and are provided with the direction Z-, L-, Y+, Y- totally four tangent displacement sensors 303 on arm.Wherein L- tangent displacement sensor 303 on two measurement arms is oppositely arranged.The middle part of testboard bay 600 is set below crossbeam 103 The direction Z+ tangent displacement sensor 303 there are three setting, wherein intermediate 303 lateral position of tangent displacement sensor is fixed, When measured workpiece 700 is located at the measurement position in longitudinal slide unit 400, connect the lateral position of measurement point A4~A6 with intermediate The alignment of 303 contact position of touch displacement sensor.The tangent displacement sensor 303 of two sides can follow pedestal along traversing guide rail Group 605 is mobile, and by being positioned manually, make the Z+ tangent displacement sensor 509 on right side X-coordinate and workpiece calibration point A1~ A3 alignment, while it is aligned the X-coordinate of the Z+ tangent displacement sensor 509 in left side with workpiece calibration point A7~A9.

The design of entire test device has following main points:

1), the first measurement arm 201 includes upper traversing pedestal 203, and upper traversing pedestal 203 along crossbeam 103 by being arranged in parallel Two linear guides movably connect with crossbeam 103, the moving range of traversing pedestal having not less than Workpiece length direction The 1/2 of effect measurement stroke, the first measurement arm 201 traversing pedestal 203 corresponding with the second measurement arm 202 is in 103 straight line of crossbeam The moving range of guide rail is limited by photoelectric limit switch, guarantees that mechanical dry does not occur when moving on guide rail for two measurement arms It relates to, has rack gear along linear guide parallel arrangement on crossbeam 103, traversing driving assembly 205 is provided on upper traversing pedestal 203, the One measurement arm 201 further includes elevating lever 300, and lifter rack 306 is provided on elevating lever 300, is also set up on upper traversing pedestal 203 There is lifting driving assembly 204, elevating lever 300 is engaged with lifting driving assembly 204 by lifter rack 306, and is gone up and down removable Photoelectric limit switch is arranged in Z+ and the direction Z- in ground connection, elevating lever 300, and the mounting seat 312 for guaranteeing that elevating lever 300 connects exists Z+ moves Shi Buyu crossbeam 103) interference, the mobile interference of Shi Buyu longitudinal slide unit 400 of Z-；First measurement 201 bottom of arm is provided with Mounting seat 312；Measurement direction is provided with the direction Z-, L-, Y+, Y- totally four contact displacement sensings in mounting seat 312 Device 303, tangent displacement sensor 303 can pass through sensing in measurement direction with elastic compression, tangent displacement sensor 303 Device mounting bracket 301 is connected in mounting seat 312, and mounting frame for sensor 301 is elongated overhanging structure；Contact displacement The end of sensor 303 and object being measured contact portion are straight line or plane, and the width of contact site is not less than workpiece surface gas The diameter dimension in hole.

2), the second measurement arm 202 measures 201 mirror settings of arm with first on crossbeam 103, and two-arm is transversely relatively divided It is not provided with a tangent displacement sensor 303, the dimensional measurement of length direction is completed in two measurement arm cooperations.

3), the displacement sensor arranged is Keyemce GT-A22 cylinder type on two measurement arms, measurement range 22mm, relatively Head is sensed in GT-H22, GT-A22 will sense head by built-in miniature cylinder in non-measured state and retract, normal measuring state Minitype cylinder will sense the crown and go out to complete measurement work, protect expensive sensing head not to be damaged by collision, with sensor anticollison block 302 mutual security sensors.The end of tangent displacement sensor 303 is additionally provided with idler wheel 304, and the surface of idler wheel 304 is circle The direction of cylindricality, 304 central axis of idler wheel of 303 end of different tangent displacement sensors in same measurement direction is consistent.

4) sensor anticollison block 302, is additionally provided on mounting frame for sensor 301, tangent displacement sensor 303 is fixed It is mounted on sensor anticollison block 302, columnar magnet 305 is provided in sensor anticollison block 302, sensor anticollison block 302 is logical It crosses magnetic force to connect with 301 end of mounting frame for sensor, end of the sensor anticollison block 302 apart from tangent displacement sensor 303 Portion permits decrement 22mm no more than the maximum of tangent displacement sensor 303, even if the opposite collision of sensor orientation occurs, Also can guarantee anticollison block under collision status, sensor also has compressed ability, protect sensor not by transition compression and Damage.In addition, end of the sensor anticollison block 302 apart from tangent displacement sensor 303 needs to be greater than contact displacement sensing 85%, the i.e. 18.7mm of the maximum license decrement 22mm of device 303, guaranteeing to possess when normal operation of sensor measurement biggish has Measurement range is imitated, the positioning requirements to measurement workpiece are relaxed.

5) elevating lever 300 for, measuring arm is hollow structure, is internally provided with lifting cylinder 314, measure on arm along vertically to The tangent displacement sensor 303 of lower direction setting is connected to the piston rod of lifting cylinder 314 by mounting frame for sensor 301 On 313, allow tangent displacement sensor 303 that the piston rod 313 of lifting cylinder 314 to be followed to stretch out or retract；Piston is being stretched Direction is equipped with position block out, and cylinder interior is provided with magnetic switch, guarantees that displacement sensor is arrived in each stretch out Position, and position is all consistent, and avoids air pressure insufficient or because the deviation of position when cylinder is fully extended gives thickness measure precision band To influence.

6) it, is also set up on testboard bay 600 there are three measurement portion is jacked, the respectively first jacking measurement portion 501, second is pushed up It rises measurement portion 502 and third jacks measurement portion 503；It jacks measurement portion to be arranged below longitudinal slide unit 400, wherein the first jacking is surveyed Amount portion 501 and the first measurement arm 201 cooperate, and the second jacking measurement portion 502 and the second measurement arm 202 cooperate, and are symmetrically arranged In two sides, third jacks measurement portion 503 and is cooperated according to one of the first measurement arm 201 of measurement demand selection and the second measurement arm 202, And it is fixed among longitudinal slide unit 400.Three jacking measurement portions are equipped with anticollison block, the biography of setting means and measurement arm Sensor anticollison block 302 is consistent, should guarantee that there are also quilts for sensor when the jacking of incorrect position collides in measurement jacking portion The ability of compression guarantees the effective range of displacement sensor again.

7) it is relatively set with longitudinal register plate 401 and longitudinal register cylinder 402, Zong Xiangding along longitudinal direction in longitudinal slide unit 400 There are two position plates 401 and longitudinal register cylinder 402, is arranged laterally at a spacing along mesa edge；Longitudinal register plate 401 and longitudinal register The side of 402 contact workpiece of cylinder is provided with positioning surface.Auxiliary positioning plate 607, the auxiliary are additionally provided on testboard bay 600 The quantity of positioning plate 607 is two, and is fixed at longitudinal register plate 401 of the testboard bay 600 close to longitudinal slide unit 400 Side, the auxiliary positioning plate 607 are provided with positioning surface, the positioning surface of described two auxiliary positioning plates 607 towards workpiece side In the same plane and parallel with the positioning surface of longitudinal register plate 401, the spacing of auxiliary positioning plate 607 is less than the length of workpiece Degree, and the measurement point on width of the workpiece direction cannot be blocked.

8) sensor arrangement of the first measurement arm 201 and the second measurement arm 202 allows to carry out the survey of workpiece angular length and angular width Amount；Allow the measurement of thickness direction step depth.Mounting frame for sensor 301 is not less than in the cantilevered length of pull measurement direction The measurement range of pull, the cantilevered length of the bracket of Z- sensor are not less than the measurement range of step depth.

Above-mentioned full-automatic contact type measurement machine can be added while carrying out length, width, thickness and pull measure into The measurement of row flatness, verticality and straightness；Accurate requirement is equipped with to the sprocket bit of measurement arm when measuring flatness, specifically It shows:

(1) when measurement thickness (Z) direction plane is spent, the Z-direction position of arm each thickness measuring point in thickness direction plane is measured Set completely the same, i.e., the Z coordinate of all thickness measuring points is identical, by the decrement of the displacement sensor at different measuring points come All measuring point sensor decrements of Calculation Plane degree, ideal plane are all identical.

(2) measurement length (L) direction plane is when spending, and the single L for measuring arm each length measuring point in length plane is to position Set it is completely the same, i.e., it is same measurement arm all length measuring point X-coordinate it is identical, pass through displacement sensor at different measuring points Decrement carrys out computational length direction plane degree.

(3) when measurement width (W) direction plane is spent, the Y-coordinate of longitudinal slide unit 400 is consistent, and passes through different measuring points Displacement sensor decrement calculates width direction flatness.

Squareness measurement is mainly for length, width and pull direction, specific position location require with when surveying flatness Status requirement is consistent；To the position location for measuring arm when measuring straightness, kinematic parameter has accurate requirement, is in particular in:

1) when determining side to be measured or straight line, it is necessary first to 304 direction of displacement sensor idler wheel is corrected, so that idler wheel 304 rotating directions are consistent with rectilinear direction；

2) control respective sensor sensing head is contacted with workpiece, and decrement control is pressed 1/2 or so of maximum compressibility The coordinate shaft position in contracting direction need to be consistent；

3) it is moved along rectilinear direction control respective coordinates axis (X, Y, Z) with low speed, at this time with certain frequency to biography Sensor decrement is acquired, and calculates straightness by the variation of sensor decrement.

For the sensor of safeguard expensive, while measured workpiece 700 being avoided to place deviation bring workpiece by collsion damage, The influence of sensor degradation can also execute related monitoring probe operation, during carrying out dimensional measurement to predict in advance Risky operation that may be present, monitoring are detected and can be divided into: spot measurement is detected, length is detected, width is detected, unfilled corner is detected, thick Degree step is detected and maximum compressibility monitoring, specific manifestation are as follows:

1) spot measurement is detected: measurement distance P be approximately equal to tangent displacement sensor 303 effectively measurement stroke two/ One, distance S are greater than half, that is, P that sensor effectively measures stroke；Sensor contact low speed is slowly navigated to apart from workpiece During the position that surface is about P, if a sensor senses that thering is decrement then to stop immediately and exiting subsequent step, at this time Show that the placement position deviation of workpiece is excessive or workpiece type, workpiece size deviation is excessive, causes sensor should not at this There is the position of decrement to be provided with decrement, workpiece contact has occurred；This exploring needle is effective to each measuring point.

2) length is detected: measuring coordinate position using the step process of measurement thickness first before measuring the size of length direction (X_LL-S,Y_L1,Z_L1) and (X_LR+S,Y_L1,Z_L1), if a sensor senses that thering is decrement then to stop immediately and exiting subsequent step Suddenly, while prompting workpiece placement position deviation excessive.It is before carrying out linear measure longimetry, first in calibration Workpiece length that this, which detects purpose, Two side positions outside dimensional directions carry out thickness measure process step, if sensor has decrement to illustrate this position in probe procedure There are workpiece to interfere situation, if the danger of sensor impact will be occurred by carrying out subsequent linear measure longimetry.

3) width is detected: measuring coordinate position using the step process of measurement thickness first before measuring the size of width direction (X_W1,Y_WB-S,Z_W1) and (X_W1,Y_WF+S,Z_W1), if a sensor senses that thering is decrement then to stop immediately and exiting subsequent step Suddenly, while prompting workpiece placement position deviation excessive.It is before carrying out width measurement, first in the calibration width of the workpiece that this, which detects purpose, Two side positions outside dimensional directions carry out thickness measure process step, if sensor has decrement to illustrate this position in probe procedure There are workpiece to interfere situation, if the danger of sensor impact will be occurred by carrying out subsequent width measurement.

4) unfilled corner is detected: when carrying out the measurement of workpiece angular width or angular length, the depth at angle will usually be less than sensor peace The extension elongation of bracket 301 is filled, and sensor anticollison block 302 has certain width wd, this width is often than contact position The contact of displacement sensor 303 wants wide, it is therefore possible to encounter in the measurement process at angle, sensor contact can normal movement arrive Among unfilled corner, and sensor anticollison block 302 is because of the case where edge of width reason and unfilled corner collides.Such as attached drawing 7, with For unfilled corner where measurement point C7, C8, F1, F2, the X-coordinate of C7 and C8 calibration position is X_C, the Y seat of F1 and F2 calibration position It is designated as Y_C, the Z coordinate that A7 demarcates position is Z_C, it is exactly before angular width, angular length measurement, first using measurement thickness that unfilled corner, which is detected, Step process measure coordinate position (X_C+wd/2,Y_C+wd/2,Z_C), if sensor has detected decrement in measurement process Then stop and exit subsequent step immediately, while prompting that workpiece placement position deviation is excessive or dimensional discrepancy is excessive.Remaining is lacked Angle detects that principle is similar, is substantially the two planes side offset distance wd/2 respectively inwards using the contact unfilled corner of sensor Whether the position contour with thickness measuring point interferes afterwards, and if there is interference, when carrying out the measurement of angular length or angular width, sensor is anti- Collision block 302 inherently collides with workpiece.

5) thickness steps are detected: since part workpiece is divided into upper layer and lower layer, the width or length of lower layer are greater than upper layer, in work Part edge forms step step shape, and for the measurement demand of step dimension, step direction is likely located at width direction, i.e. X-axis Direction, it is also possible to be located at length direction, i.e. Y direction；The principle detected is detected similar with unfilled corner, will be detected and to be arranged in Yan Tai Rank is facing perpendicularly to the position of outer offset wd/2 distance, the measurement of thickness process is carried out with thickness calibration position coordinates, if measured Sensor has detected that decrement then stops immediately and exit subsequent step in journey, while prompting workpiece placement position deviation excessive Or dimensional discrepancy is excessive.

6) maximum compressibility monitors: purpose of this monitoring contact workpiece surface and has been started slow in sensor contact During mobile compression contacts, a maximum detection decrement P is set_maxIf the sensor decrement in moving process is big In P_max, then stop and exit subsequent step immediately, while prompting workpiece size deviation excessive.In calibration, the compression of sensor Amount is maintained at 1/2 of maximum compressibility or so (22*0.5=11mm), while the constraint of sensor anticollison block 302 is so that sensor The amount of being effectively compressed be maximum compressibility 85% or so (22*0.85=18.7mm), therefore the setting of Pmax needs to meet 11 < Pmax < 18.7 is just able to satisfy the requirement of maximum compressibility monitoring, usually setting Pmax=17mm.

In complete measurement procedure, need automatic Transition to the measurement of next measuring point after the completion of a measuring point；From survey The angle of amount efficiency carries out measuring point transition using critical path method (CPM), and there are two types of situations for specific transition implementation:

1) same class measuring point, as shown in Fig. 7, such as thickness measuring point A1~A9, length measuring point F3~F6, width measuring point C3 ~C6, D3~D6, pull measuring point C1~C2, C7~C8, D1~D2, D7~D8, E1~E2, E7~E8, F1~F2, F7~F8, These measuring points are moved to next point along 304 direction of idler wheel after the completion of measuring point, while idler wheel 304 squeezes burr simultaneously More points can be acquired.

2) between different types of measuring point carry out transition when, it is necessary first to measuring point is revert to ready position, so latter two After measurement arm returns to safe altitude, it is moved to next measuring point and continues to measure.

A kind of above-mentioned preferred shortest path measuring point path is as follows, indicates that two measurement arms simultaneously participate in measurement in bracket, With reference to attached drawing 7:

A4 → A1 (A7) → A1 (A7) unfilled corner detects → and preceding width detects → and length detects → C3 (C5) → C4 (C6) → C1 (C7)→C2(C8)→E1(F1)→E2(F2)→E3(F3)→E4(F4)→A2(A8)→A5→A6→A3(A9)→A3(A9) Unfilled corner detects → and rear width detects → E5 (F5) → E6 (F6) → E7 (F7) → E8 (F8) → D1 (D7) → D2 (D8) → D3 (D5) → D4 (D6) → measurement terminates.

Following that detailed testing process description will be carried out to the path, process is divided into calibration and measurement two parts.

The demarcation flow of standard workpiece:

The control system of the full-automatic contact type measurement machine of standard size typing of each measuring point of workpiece will be demarcated first, so Sensor decrement record process when afterwards due to calibration and collecting flowchart when workpiece calibration all, will be in measurement procedure In illustrate together.

The measurement procedure of measured workpiece 700:

Under the location information of standard workpiece, the known situation of displacement sensor decrement information, to measured workpiece 700 Measurement be exactly that each coordinate of full-automatic contact type measurement machine is successively moved to corresponding position by shortest path, pass through record Then corresponding sensor decrement be calculated measuring size with the sensor decrement of calibration；Detailed process is seen below It states；

(1) [ready]: full-automatic contact type measurement machine returns to origin position, and two measuring arm is distinguished at the origin position In 103 two sides of crossbeam, longitudinal slide unit 400 is in front end, is allowed in the working range of robot, and elevating lever 300 rises To top, it is allowed to not interfere with longitudinal platform, robot；

(2) [feeding in place]: measured workpiece 700 is carried to after longitudinal slide unit 400 positions and exit by robot, to complete Automatic contacting measuring machine sends feeding and signal is completed, and then sends enabling signal；

(3) [work piece positioning is tightly completed]: full-automatic contact type measurement machine receives enabling signal, passes through longitudinal slide unit There is material detection switch to judge whether there is measured workpiece 700 on 400；After confirming that 700 feeding of measured workpiece is errorless, it is longitudinal fixed to control Position cylinder 402 ejects, and clamps measured workpiece 700.

(4) [A4 prepares positioning]: the first measurement arm 201 of mobile full-automatic contact type measurement machine is displaced Z- contact 307 contact of sensor is located at the position right above measurement point A4, i.e. (X_A4,Y_A4,Z_A4+ S), the second measurement arm 202 is maintained at current Position.

(5) [sensor stretching]: the piston rod 313 of the first measurement arm 201 ejects, 307 quilt of Z- tangent displacement sensor Minitype cylinder ejection, so that thickness direction sensor is in normal operating conditions.

(6) [A4 detects positioning]: maintaining the first measurement arm 201X, and Y-coordinate is constant, and the first measurement arm 201 is along Z axis to moving down It is dynamic, the position (X for being moved to the contact of Z- tangent displacement sensor 307 right above measurement point A4_A4,Y_A4,Z_A4+P)；This In the process, if the Z- tangent displacement sensor 307 of any one measurement arm has decrement, stop motion immediately, and mention Show location of workpiece deviation.

(7) [A4 measurement and positioning]: maintaining the first measurement arm 201X, and Y-coordinate is constant, and the first measurement arm 201 is along Z axis to moving down Dynamic distance 2P, while third jacking measurement portion 503 ejects, and makes 509 contact measurement point B4 of Z+ tangent displacement sensor；This During a, upper lower sensor will contact workpiece, the movement speed for measuring arm is slower, prevent sensor Rapid contact workpiece produce Raw vibration and impact.

(8) [pause of A4 debounce]: the first measurement arm 201X is maintained, Y, Z coordinate is constant, suspends certain time t, makes sensor The decrement of sensor is recorded after data stabilization；In this step, if demarcating to standard workpiece, arm is measured by first 307 decrement of 201Z- tangent displacement sensor is denoted as P_L1, the third jacking pressure of measurement portion 503Z+ tangent displacement sensor 509 Contracting amount is denoted as P_L2；If being measured to measured workpiece 700, the Z- tangent displacement sensor 307 of the first measurement arm 201 is pressed Contracting amount is denoted as P_L1', 509 decrement of Z+ tangent displacement sensor of the first jacking measurement portion 501 is denoted as P_L2’。

(9) [calculating of A4 size]: the thickness between A4 and B4 is dimensioned as T_A4, calculate the thickness gauge of measured workpiece 700 Very little T_A4'=T_A4+(P_L1’-P_L1)+(P_L2’-P_L2)。

(10) [A4 prepares to reset]: the first measurement arm 201X is maintained, Y-coordinate is constant, makes Z- tangent displacement sensor 307 Contact moves to Z_A4+ S, while the piston rod 313 of the first measurement arm 201 retracts, 307 minitype cylinder of Z- tangent displacement sensor It retracts, the first jacking measurement portion 501 retracts, so that sensor is detached from 700 surface of measured workpiece.

(11) [A1-A7 prepares positioning]: the Z- contact of the first measurement arm 201 of full-automatic contact type measurement machine, which is displaced, to be passed 307 contact of sensor moves to the position right above measurement point A7, i.e. (X_A7,Y_A7,Z_A7+ S), the Z- contact of the second measurement arm 202 307 contact of displacement sensor moves to the position right above measurement point A1, i.e. (X_A1,Y_A1,Z_A1+S)。

(12) [sensor stretching]: the piston rod 313 of two measuring arm ejects, and Z- tangent displacement sensor 307 is miniature Cylinder ejector, so that thickness direction sensor is in normal operating conditions.

(13) [A1-A7 detects positioning]: maintaining the first measurement arm 201X, and Y-coordinate is constant, under the first measurement arm 201Z axial direction It is mobile, so that 307 contact of Z- tangent displacement sensor is moved to the position (X right above measurement point A7_A7,Y_A7,Z_A7+P)；It maintains Second measurement arm 202X, Y-coordinate is constant, and the second measurement arm 202 is moved down along Z axis, touches Z- tangent displacement sensor 307 Head is moved to the position (X right above measurement point A1_A1,Y_A1,Z_A1+P)；During this, if the Z- of any one measurement arm connects Touch displacement sensor 307 has decrement, then stop motion immediately, and prompts location of workpiece deviation.

(14) [A1-A7 measurement and positioning]: two measuring arm X is maintained, Y-coordinate is constant, and two measuring arm Z axis moves down distance 2P, while the first jacking measurement portion 501 and third jacking measurement portion 503 eject, and make 509 contact of Z+ tangent displacement sensor point Other contact measurement point B7 and B4；During this, upper lower sensor will contact workpiece, the movement speed for measuring arm is slower, prevent Only sensor Rapid contact workpiece generates vibration and impact.

(15) [pause of A1-A7 debounce]: maintaining two measuring arm X, and Y, Z coordinate is constant, suspends certain time t, makes sensor The decrement of sensor is recorded after data stabilization；In this step, if demarcating to standard workpiece, arm 201 is measured by first 307 decrement of Z- tangent displacement sensor be denoted as P_L1, the Z+ tangent displacement sensor 509 of the first jacking measurement portion 501 Decrement is denoted as P_L2；307 decrement of Z- tangent displacement sensor of second measurement arm 202 is denoted as P_R1, the second jacking measurement portion 502 509 decrement of Z+ tangent displacement sensor is denoted as P_R2；If measuring to measured workpiece 700, arm is measured by first 201 307 decrement of Z- tangent displacement sensor is denoted as P_L1', the Z+ tangent displacement sensor of the first jacking measurement portion 501 509 decrements are denoted as P_L2'；307 decrement of Z- tangent displacement sensor of second measurement arm 202 is denoted as P_R1', the second jacking 509 decrement of Z+ tangent displacement sensor of measurement portion 502 is denoted as P_R2’。

(16) [calculating of A1-A7 size]: the thickness between A7 and B7 is dimensioned as T_A7, between A1 and B1 thickness calibration Having a size of T_A1；Calculate the thickness T of measured workpiece 700_A7'=T_A7+(P_L1’-P_L1)+(P_L2’-P_L2), T_A1'=T_A1+(P_R1’- P_R1)+(P_R2’-P_R2)。

(17) [A1-A7 prepares to reset]: the first measurement arm 201X is maintained, Y-coordinate is constant, makes Z- tangent displacement sensor 307 contacts move to Z_A7+ S, while the piston rod 313 of the first measurement arm 201 retracts, Z- tangent displacement sensor 307 is miniature Cylinders retract, the first jacking measurement portion 501 retract；The second measurement arm 202X is maintained, Y-coordinate is constant, passes the displacement of Z- contact 307 contact of sensor moves to Z_A1+ S, while the piston rod 313 of the second measurement arm 202 retracts, Z- tangent displacement sensor 307 Minitype cylinder retracts, and the retraction of the second jacking measurement portion 502 is so that sensor is detached from 700 surface of measured workpiece.

(18) [A1-A7 unfilled corner is detected]: the width of full-automatic contact type measurement machine anticollison block is set as wd, makes the first measurement arm 201 307 contact of Z- tangent displacement sensor moves to (X_C7+wd/2,Y_F1- wd/2) top, the Z- of the second measurement arm 202 307 contact of tangent displacement sensor moves to (X_C1+wd/2,Y_F1- wd/2) top, the ejection of piston rod 313 of two measuring arm, 307 minitype cylinder of Z- tangent displacement sensor ejection, so that thickness direction sensor is in normal operating conditions；To upper rheme After setting in place, 307 contact of Z- tangent displacement sensor of the first measurement arm 201 is made to move to Z_A7, the Z- of the second measurement arm 202 307 contact of tangent displacement sensor moves to Z_A1；This step detects whether contain unfilled corner and size whether in range, if The Z- tangent displacement sensor 307 of any one measurement arm has decrement, then stop motion immediately, and prompts the location of workpiece inclined Difference.

(19) [A1-A7 unfilled corner detects reset]: two measuring arm X is maintained, Y-coordinate is constant, makes the first measurement arm 201 (201) 307 contact of Z- tangent displacement sensor moves to Z_A7+ S, 307 contact of Z- tangent displacement sensor of the second measurement arm 202 Move to Z_A1+S。

(20) [preceding width is detected]: set the stretching width of the mounting frame for sensor 301 of full-automatic contact type measurement machine as Wid makes 307 contact of Z- tangent displacement sensor of the first measurement arm 201 move to (X_C5,Y_C5- wid+P) top, second surveys 307 contact of Z- tangent displacement sensor of amount arm 202 moves to (X_C3,Y_F1- wd/2) top；After above-mentioned position in place after, make 307 contact of Z- tangent displacement sensor of first measurement arm 201 moves to Z_A7, the Z- contact displacement of the second measurement arm 202 307 contact of sensor moves to Z_A1；This step detects width dimensions whether in range, if the Z- of any one measurement arm connects Touch displacement sensor 307 has decrement, then stop motion immediately, and prompts location of workpiece deviation.

(21) [preceding width detects reset]: two measuring arm X is maintained, Y-coordinate is constant, contacts the Z- of the first measurement arm 201 307 contact of formula displacement sensor moves to Z_A7307 contact of Z- tangent displacement sensor of+S, the second measurement arm 202 move to Z_A1+S。

(22) [length is detected]: set the stretching width of the mounting frame for sensor 301 of full-automatic contact type measurement machine as Wid makes 307 contact of Z- tangent displacement sensor of the first measurement arm 201 move to (X_F3-wid+P,Y_F3) top, second surveys 307 contact of Z- tangent displacement sensor of amount arm 202 moves to (X_E3-wid+P,Y_F3) top；After above-mentioned position in place after, 307 contact of Z- tangent displacement sensor of the first measurement arm 201 is set to move to Z_A7, the Z- contact position of the second measurement arm 202 307 contact of displacement sensor moves to Z_A1；This step detects length dimension whether in range, if the Z- of any one measurement arm Tangent displacement sensor 307 has decrement, then stop motion immediately, and prompts location of workpiece deviation.

(23) [length detects reset]: two measuring arm X is maintained, Y-coordinate is constant, makes the Z- contact of the first measurement arm 201 307 contact of displacement sensor moves to Z_A7307 contact of Z- tangent displacement sensor of+S, the second measurement arm 202 move to Z_A1 +S。

(24) [C3-C5 prepares positioning]: the Z- contact of the first measurement arm 201 of full-automatic contact type measurement machine, which is displaced, to be passed 307 contact of sensor moves to (X_C5,Y_C5+ S) top, 307 contact of the Z- tangent displacement sensor movement of the second measurement arm 202 To (X_C3,Y_C5+ S) top；After above-mentioned position in place after, make 307 contact of Z- tangent displacement sensor of the first measurement arm 201 Move to Z_C5, second measurement arm 202 307 contact of Z- tangent displacement sensor move to Z_C3, two measuring arm Y+ displacement sensing The ejection of device minitype cylinder.

(25) [C3-C5 detects positioning]: maintaining two measuring arm X, and Z coordinate is constant, and mobile longitudinal slide unit 400 makes the first survey 309 contact of Y+ tangent displacement sensor of amount arm 201 moves to the position (X immediately ahead of measurement point C5_C5,Y_C5+ P), second surveys 309 contact of Y+ tangent displacement sensor of amount arm 202 moves to the position (X immediately ahead of measurement point C3_C3,Y_C3+P)；This mistake Cheng Zhong, any one measurement arm Y+ tangent displacement sensor 309 have decrement, then stop motion immediately, and prompt workpiece position Set deviation.

(26) [C3-C5 measurement and positioning]: maintaining two measuring arm X, and Z coordinate is constant, and mobile longitudinal slide unit 400 makes two measurements Arm Y-axis moves backward distance 2P；During this, Y+ sensor will contact workpiece, the movement speed for measuring arm is slower, prevents Sensor Rapid contact workpiece generates vibration and impact.

(27) [pause of C3-C5 debounce]: maintaining two measuring arm X, and Y, Z coordinate is constant, suspends certain time t, makes sensor The decrement of sensor is recorded after data stabilization；In this step, if demarcating to standard workpiece, arm 201 is measured by first 309 decrement of Y+ tangent displacement sensor be denoted as P_L1, the compression of Y+ tangent displacement sensor 309 of the second measurement arm 202 Amount is denoted as P_R1；If being measured to measured workpiece 700, the Y+ tangent displacement sensor 309 of the first measurement arm 201 is compressed Amount is denoted as P_L1', 309 decrement of Y+ tangent displacement sensor of the second measurement arm 202 is denoted as P_R1'.Pay attention to the measurement in the face D also Do not start, so width dimensions can not be calculated at this time, it is assumed that during when the measurement face D, marked when to standard workpiece Periodically, 310 decrement of Y- tangent displacement sensor of the first measurement arm 201 is denoted as P_L2, the Y- contact of the second measurement arm 202 310 decrement of formula displacement sensor is denoted as P_R2；When being measured to measured workpiece 700, the Y- of the first measurement arm 201 is contacted 310 decrement of formula displacement sensor is denoted as P_L2', 310 decrement of Y- tangent displacement sensor of the second measurement arm 202 is denoted as P_R2’。

(28) width calibration of [calculating of C3-C5 size] between C5 and D5 is having a size of T_C5, calculate the width of measured workpiece 700 Size T_C5'=T_C5+(P_L1’-PL₁)+(P_L2’-P_L2)；Width calibration between C3 and D3 is having a size of T_C3, calculate measured workpiece 700 Width dimensions T_C3'=T_C3+(P_R1’-P_R1)+(P_R2’-P_R2)。

(29) [C3-C5 prepares to reset]: maintaining two measuring arm X, and Z coordinate is constant, and mobile longitudinal slide unit 400 makes two measurements 309 contact of arm Y+ tangent displacement sensor moves to Y_C5+ S or Y_C3+ S, the contracting of two measuring arm Y+ displacement sensor minitype cylinder It returns.

(30) [C4-C6 measurement] measures C4 with reference to (24)-(29), the measuring point in wide face before C6, and returns to ready position.

(31) [C1-C7 measurement] measures C1, the angular width of C7 with reference to (24)-(29), and returns to ready position.The calculating of angular width Method: C1 demarcates angular width having a size of WC_C1, decrement when calibration is PC_R, decrement when measurement is PC_R'；C7 demarcates angular width Having a size of WC_C7, decrement when calibration is PC_L, decrement when measurement is PC_L'.In conjunction with step 0, measured workpiece 700 is calculated Angular width size WC_C1'=WC_C1+(PC_R’-PC_R)-(P_L1’-P_L1), WC_C7'=WC_C7+(PC_L’-PC_L)-(P_L1’-P_L1)。

(32) [C2-C8 measurement] measures C2, the angular width of C8 with reference to (24)-(29), and returns to ready position, calculated result ginseng Examine step 0.

(33) [E1-F1 measurement] measures E1, the angular length of F1 with reference to (35)-(40), and returns to ready position, calculated result ginseng Examine step 0.

(34) [E2-F2 measurement] measures E2, the angular length of F2 with reference to (35)-(40), and returns to ready position, calculated result ginseng Examine step 0.

(35) the L- contact of the first measurement arm 201 of [E3-F3 prepares positioning] full-automatic contact type measurement machine, which is displaced, passes 303 contact of sensor moves to (X_F3-S,Y_F3) top, 303 contact of the L- tangent displacement sensor movement of the second measurement arm 202 To (X_E3+S,Y_E3) top；After above-mentioned position in place after, make 303 contact of L- tangent displacement sensor of the first measurement arm 201 Move to Z_F3, second measurement arm 202 303 contact of L- tangent displacement sensor move to Z_E3, two measuring arm L- displacement sensing The ejection of device minitype cylinder.

(36) [E3-F3 detects positioning]: maintaining two measuring arm X, and Z coordinate is constant, the L- contact position of the first measurement arm 201 303 contact of displacement sensor moves to X_F3303 contact of L- tangent displacement sensor of-P, the second measurement arm 202 move to X_E3+ P；During this, if two measurement arm L- tangent displacement sensor 303 any one have decrement, stop immediately Movement, and prompt location of workpiece deviation.

(37) [E3-F3 measurement and positioning]: maintaining two measuring arm X, and Z coordinate is constant, the L- contact position of the first measurement arm 201 303 contact of displacement sensor moves right 2P, and 303 contact of L- tangent displacement sensor of the second measurement arm 202 is moved to the left 2P； During this, the L- sensor of two measuring arm will contact workpiece, the movement speed for measuring arm is slower, prevents sensor quick Contact workpiece generates vibration and impact.

(38) [pause of E3-F3 debounce]: maintaining two measuring arm X, and Y, Z coordinate is constant, suspends certain time t, makes sensor The decrement of sensor is recorded after data stabilization；In this step, if demarcating to standard workpiece, arm 201 is measured by first (201) 303 decrement of L- tangent displacement sensor is denoted as P_L1, the pressure of L- tangent displacement sensor 303 of the second measurement arm 202 Contracting amount is denoted as P_R1；If being measured to measured workpiece 700, the L- tangent displacement sensor 303 of the first measurement arm 201 is pressed Contracting amount is denoted as P_L1', 303 decrement of L- tangent displacement sensor of the second measurement arm 202 is denoted as P_R1’。

(39) [calculating of E3-F3 size]: E3 and F3 calibrating length are having a size of L_E3, calculate the length dimension of measured workpiece 700 L_E3'=T_E3+(P_L1’-P_L1)+(P_L2’-P_L2)。

(40) [E3-F3 prepares to reset]: maintaining two measuring arm Y, and Z coordinate is constant, the L- contact position of the first measurement arm 201 303 contact of displacement sensor moves to X_F3303 contact of L- tangent displacement sensor of-S, the second measurement arm 202 move to X_E3+ S；Two measuring arm L- displacement sensor minitype cylinder retracts.

(41) [E4-F4 measurement] measures E4, F4 length dimension with reference to (35)~(40), and returns to ready position.

(42) [A2-A8 measurement] measures A2, A8 thickness with reference to (11)-(17), and returns to ready position.

(43) [A5 measurement] measures A5 thickness with reference to (4)-(10), and returns to ready position.

(44) [A6 measurement] measures A6 thickness with reference to (4)-(10), and returns to ready position.

(45) [A3-A9 measurement] measures A3, A9 thickness with reference to (11)-(17), and returns to ready position.

(46) [A3-A9 unfilled corner is detected] detects with reference to (18)-(19) progress unfilled corner, and returns to ready position.

(47) [rear width is detected] detects with reference to (20)-(21) progress width, and returns to ready position.

(48) [E5-F5 measurement] measures E5, F5 length dimension with reference to (35)-(40), and returns to ready position.

(49) [E6-F6 measurement] measures E6, F6 length dimension with reference to (35)-(40), and returns to ready position.

(50) [E7-F7 measurement] measures E7, F7 angular length size with reference to (35)-(40), and returns to ready position.

(51) [E8-F8 measurement] measures E8, F8 angular length size with reference to (35)-(40), and returns to ready position.

(52) [D1-D7 measurement] measures D1, D7 angular width size with reference to (54)-(58), and returns to ready position.

(53) [D2-D8 measurement] measures D2, D8 angular width size with reference to (54)-(58), and returns to ready position.

(54) [D3-D5 prepares positioning]: the Z- contact of the first measurement arm 201 of full-automatic contact type measurement machine, which is displaced, to be passed 307 contact of sensor moves to (X_D5,Y_D5- S) top, 307 contact of the Z- tangent displacement sensor movement of the second measurement arm 202 To (X_D3,Y_D3- S) top；After above-mentioned position in place after, make 307 contact of Z- tangent displacement sensor of the first measurement arm 201 Move to Z_D5, second measurement arm 202 307 contact of Z- tangent displacement sensor move to Z_D3, two measuring arm Y- displacement sensing The ejection of device minitype cylinder.

(55) [D3-D5 detects positioning]: maintaining two measuring arm X, and Z coordinate is constant, and mobile longitudinal slide unit 400 makes the first survey 310 contact of Y- tangent displacement sensor of amount arm 201 moves to the position (X in the dead astern measurement point D5_D5,Y_D5- P), second surveys 310 contact of Y- tangent displacement sensor of amount arm 202 moves to the position (X immediately ahead of measurement point D3_D3,Y_D3-P)；This mistake Cheng Zhong, any one measurement arm Y- tangent displacement sensor 310 have decrement, then stop motion immediately, and prompt workpiece position Set deviation.

(56) [D3-D5 measurement and positioning]: maintaining two measuring arm X, and Z coordinate is constant, and mobile longitudinal slide unit 400 makes two measurements Arm Y-axis moves forward distance 2P；During this, Y- sensor will contact workpiece, the movement speed for measuring arm is slower, prevents Sensor Rapid contact workpiece generates vibration and impact.

(57) [pause of D3-D5 debounce]: maintaining two measuring arm X, and Y, Z coordinate is constant, suspends certain time t, makes sensor The decrement of sensor is recorded after data stabilization；In this step, if demarcating to standard workpiece, arm 201 is measured by first 310 decrement of Y- tangent displacement sensor be denoted as P_L2, the compression of Y- tangent displacement sensor 310 of the second measurement arm 202 Amount is denoted as P_R2；If being measured to measured workpiece 700, the Y- tangent displacement sensor 310 of the first measurement arm 201 is compressed Amount is denoted as P_L2', 310 decrement of Y- tangent displacement sensor of the second measurement arm 202 is denoted as P_R2', size, which calculates, refers to step (27)。

(58) [D3-D5 prepares to reset]: maintaining two measuring arm X, and Z coordinate is constant, and mobile longitudinal slide unit 400 makes two measurements 310 contact of arm Y- tangent displacement sensor moves to Y_D5- S or Y_D3- S, the contracting of two measuring arm Y- displacement sensor minitype cylinder It returns.

(59) [D4-D6 measurement] measures D4, D6 width dimensions with reference to (54)-(58), and returns to ready position.

(60) [return to origin]: all measuring point measurements terminate, and two measuring arm Z axis returns to origin position；After in place, two Measurement arm X-axis returns to origin position, and longitudinal slide unit 400 returns to origin position, and positioning cylinder retracts, and workpiece unclamps.

(61) [robot blanking] sends the instruction of blanking to robot, and robot blanking is waited to complete.Robot blanking After the completion, return step (1) waits feeding and the measurement of next subjob.

Embodiment 2

It is provided with single measurement arm on full-automatic contact type measurement machine crossbeam 103, measures and is provided with Z-, L+, L-, Y on arm +, the direction Y- totally five tangent displacement sensors 303.A jacking measurement portion, the jacking measurement portion are provided among rack It further include traversing driving assembly 205, traversing driving assembly 205 is using servo motor driving jacking measurement portion along X to traversing guide rail Group 605 can be accurately positioned the position of any measurement point in the face workpiece B within the scope of Workpiece length.It is set in the jacking measurement portion It is equipped with the direction a Z+ tangent displacement sensor 303.Workpiece material is deal board, and by excision forming, surface has a little straight Stomata of the diameter no more than 4mm and wood fiber burr shape are prominent.

First measurement 201 upper-part of arm and embodiment 1 are consistent, and difference is to be provided in mounting seat 312 along measurement direction The direction Z-, L+, L-, Y+, Y- totally five tangent displacement sensors 303, wherein the direction L- is along the direction X-, and the direction L+ is along the side X+ To.

It is provided with only one measurement arm on full-automatic contact type measurement machine crossbeam 103, completes the measurement of all measuring points.

It is completely the same with embodiment 1 to measure the arrangement of displacement sensor and requirement on arm.

Mounting frame for sensor 301 is provided with sensor anticollison block 302), it arranges and requires reference implementation example 1.

It measures and sensor stand is installed on the elevating lever 300 of arm, the sensor stand is fixedly installed with Z- contact Displacement sensor 307.

It is additionally provided with a third jacking measurement portion 503 on testboard bay 600, and is arranged among longitudinal slide unit 400, top Measurement portion is risen to be driven by servo motor and can be moved along traversing guide rail group 605 and position that (orientation range is at 400 liang of longitudinal slide unit Between guide rail), thickness measure is completed with measurement arm cooperation, thickness measure range needs in the moving range of jacking measurement portion. It jacks measurement portion and is equipped with anticollison block, setting means and measurement arm sensor anticollison block 302 are consistent, should guarantee to measure jacking portion There are also compressed abilities for sensor when in incorrect position, jacking collides, and guarantee effective survey of displacement sensor again Measure range.

The longitudinal register plate 401 and longitudinal register cylinder 402 and embodiment 1 one of longitudinally opposed setting in longitudinal slide unit 400 It causes.The sensor of first measurement arm 201 carries out angular width and the measurement of angular length size please refers to embodiment 1.Full-automatic contact is surveyed The measurement of amount machine flatness, verticality and straightness please refers to embodiment 1.Related monitoring probe operation during dimensional measurement Reference implementation example 1.In complete measurement procedure, need automatic Transition to the measurement of next measuring point after the completion of a measuring point； From the angle of measurement efficiency, measuring point transition is carried out using critical path method (CPM), there are two types of situations for specific implementation:

(1) same class measuring point, as shown in Fig. 7, such as thickness measuring point A1~A9, length measuring point F3~F6, width measuring point C3~C6, D3~D6, pull measuring point C1~C2, C7~C8, D1~D2, D7~D8, E1~E2, E7~E8, F1~F2, F7~ F8, these measuring points are moved to next point along 304 direction of idler wheel after the completion of measuring point, and idler wheel 304 squeezes the same of burr simultaneously When can also acquire more points.

(2) between different types of measuring point carry out transition when, it is necessary first to measuring point is revert to ready position, so latter two After measurement arm returns to safe altitude, it is moved to next measuring point and continues to measure.

A kind of above-mentioned preferred shortest path measuring point path is as follows, with reference to attached drawing 7:

A7 unfilled corner detects → and A7 → A4 → A1 → A1 unfilled corner detects → E3 → E4 → E1 → E2 → C1 → C2 → C3 → C4 → C5 → C6 → C7 → C8 → F1 → F2 → F3 → F4 → A8 → A5 → A2 → A3 unfilled corner detects → A3 → A6 → A9 → A9 unfilled corner spy Look into → F5 → F6 → F7 → F8 → D7 → D8 → D5 → D6 → D3 → D4 → D1 → D2 → E7 → E8 → E5 → E6 → measurement terminates.

The demarcation flow of standard workpiece:

The measurement procedure of measured workpiece 700:

Under the location information of standard workpiece, the known situation of displacement sensor decrement information, to measured workpiece 700 Measurement be exactly that each coordinate of full-automatic contact type measurement machine is successively moved to corresponding position by shortest path, pass through record Then corresponding sensor decrement be calculated measuring size with the sensor decrement of calibration；

Detailed process is seen below:

(1) [ready]: full-automatic contact type measurement machine returns to origin position, the first measurement arm at the origin position 201 in 103 left side of crossbeam, and longitudinal slide unit 400 is in front end, is allowed in the working range of robot, on elevating lever 300 It is raised to top, is allowed to and platform, robot does not interfere；

(2) [feeding in place]: after workpiece handling to longitudinal slide unit 400 is positioned and exited by robot, to automatically connecing Touch measuring machine sends feeding and signal is completed, and then sends an enabling signal；

(4) [A7 unfilled corner is detected]: the width of full-automatic contact type measurement machine anticollison block is set as wd, makes the first measurement arm 201 307 contact of Z- tangent displacement sensor move to (X_C7+wd/2,Y_F1- wd/2) top；Meet the Z- of the first measurement arm 201 307 contact of touch displacement sensor moves to Z_A7；This step detects whether contain unfilled corner and size whether in range, if surveyed The Z- tangent displacement sensor 307 of amount arm has decrement, then stop motion immediately, and prompts location of workpiece deviation.

(5) [A7 unfilled corner detects reset]: the first measurement arm 201X is maintained, Y-coordinate is constant, makes the Z- of the first measurement arm 201 307 contact of tangent displacement sensor moves to Z_A7+S。

(6) [A7 prepares positioning]: the Z- tangent displacement sensor of the first measurement arm 201 of full-automatic contact type measurement machine 307 contacts move to the position right above measurement point A7, i.e. (X_A7,Y_A7,Z_A7+ S), third jacking measurement portion 503 moves to X_A7。

(7) [sensor stretching]: the ejection of 307 minitype cylinder of Z- tangent displacement sensor, so that thickness direction sensor In normal operating conditions.

(8) [A7 detects positioning]: maintaining the first measurement arm 201X, and Y-coordinate is constant, and the first measurement arm 201 is along Z axis to moving down It is dynamic, so that 307 contact of Z- tangent displacement sensor is moved to the position (X right above measurement point A7_A7,Y_A7,Z_A7+P)；This mistake Cheng Zhong, if the Z- tangent displacement sensor 307 of measurement arm has decrement, stop motion immediately, and prompt the location of workpiece Deviation.

(9) [A7 measurement and positioning]: the first measurement arm 201X is maintained, Y-coordinate is constant, moves down the first measurement arm 201Z axially Dynamic distance 2P, while third jacking measurement portion 503 ejects；During this, upper lower sensor will contact workpiece, measure arm Movement speed is slower, prevents sensor Rapid contact workpiece from generating vibration and impact.

(10) [pause of A7 debounce]: the first measurement arm 201X is maintained, Y, Z coordinate is constant, suspends certain time t, makes to sense The decrement of sensor is recorded after device data stabilization；In this step, if demarcating to standard workpiece, arm is measured by first 307 decrement of 201Z- tangent displacement sensor is denoted as P_L1, the Z+ tangent displacement sensor 509 of third jacking measurement portion 503 Decrement is denoted as P_L2；If being measured to measured workpiece 700, by the Z- tangent displacement sensor 307 of the first measurement arm 201 Decrement is denoted as P_L1', 509 decrement of Z+ tangent displacement sensor of the first jacking measurement portion 501 is denoted as P_L2’。

(11) [calculating of A7 size]: the thickness between A7 and B7 is dimensioned as T_A7, calculate the thickness gauge of measured workpiece 700 Very little T_A7'=T_A7+(P_L1’-P_L1)+(P_L2’-P_L2)。

(12) [A7 prepares to reset]: the first measurement arm 201X is maintained, Y-coordinate is constant, makes Z- tangent displacement sensor 307 Contact moves to Z_A7307 minitype cylinder of+S, Z- tangent displacement sensor retracts, and third jacks measurement portion 503 and retracts, so that passing Sensor is detached from 700 surface of measured workpiece.

(13) [A4 measurement]: with reference to the size of (6)-(12) measurement A4 thickness, and ready position is returned to.

(14) [A1 measurement]: with reference to the size of (6)-(12) measurement A1 thickness, and ready position is returned to.

(15) [A1 unfilled corner is detected]: the width of full-automatic contact type measurement machine anticollison block is set as wd, makes the first measurement arm 201 307 contact of Z- tangent displacement sensor move to (X_C1-wd/2,Y_F1- wd/2) top；Meet the Z- of the first measurement arm 201 307 contact of touch displacement sensor moves to Z_A7；This step detects whether contain unfilled corner and size whether in range, if surveyed The Z- tangent displacement sensor 307 of amount arm has decrement, then stop motion immediately, and prompts location of workpiece deviation.

(16) [A1 unfilled corner detects reset]: the first measurement arm 201X is maintained, Y-coordinate is constant, makes the Z- of the first measurement arm 201 307 contact of tangent displacement sensor moves to Z_A1+S。

(17) the L- tangent displacement sensor of the first measurement arm 201 of [E3 prepares positioning] full-automatic contact type measurement machine 303 contacts move to (X_E3+S,Y_E3) top；After above-mentioned position in place after, make the first measurement arm 201 L- contact be displaced pass 303 contact of sensor moves to Z_E3, measurement arm L- displacement sensor minitype cylinder ejection.

(18) [E3 detects positioning]: maintaining measurement arm Y, and Z coordinate is constant, and the L- contact of the first measurement arm 201, which is displaced, to be passed 303 contact of sensor moves to X_E3+P；During this, if the L- tangent displacement sensor 303 of measurement arm has decrement, Stop motion immediately, and prompt location of workpiece deviation.

(19) [E3 measurement and positioning]: maintaining measurement arm Y, and Z coordinate is constant, and the L- contact of the first measurement arm 201, which is displaced, to be passed 303 contact of sensor is moved to the left 2P；During this, the L- tangent displacement sensor 303 of the first measurement arm 201 will be contacted Workpiece, the movement speed for measuring arm is slower, prevents sensor Rapid contact workpiece from generating vibration and impact.

(20) [pause of E3 debounce]: maintaining measurement arm X, and Y, Z coordinate is constant, suspends certain time t, keeps sensing data steady The decrement of sensor is recorded after fixed；In this step, if being demarcated to standard workpiece, the L- of the first measurement arm 201 is connect 303 decrement of touch displacement sensor is denoted as P_L1；If being measured to measured workpiece 700, the L- of the first measurement arm 201 is connect 303 decrement of touch displacement sensor is denoted as P_L1'.The corresponding length measuring point F3 of E3 is measured not yet at this time, therefore calculating wouldn't It can execute, it is assumed that when measuring F3, when demarcating to standard workpiece, measure arm 201L+ contact displacement sensing for first 303 decrement of device is denoted as P_L2；If measuring to measured workpiece 700, arm 201L+ tangent displacement sensor is measured by first 303 decrements are denoted as P_L2’。

(21) [calculating of E3 size]: E3 and F3 calibrating length are having a size of L_E3, calculate the length dimension L of measured workpiece 700_E3’ =T_E3+(P_L1’-P_L1)+(P_L2’-P_L2)。

(22) [E3 prepares to reset]: maintaining two measuring arm Y, and Z coordinate is constant, and the first measurement arm 201L- contact displacement passes 303 contact of sensor moves to X_E3+ S, the first measurement arm 201L- displacement sensor minitype cylinder retract.

(23) [E4 measurement]: with reference to the size of (17)-(22) measurement E4 length, and ready position is returned to.

(24) [E1 prepares positioning]: the L- contact displacement sensing of the first measurement arm 201 of full-automatic contact type measurement machine 303 contact of device moves to (X_E1+S,Y_E1) top；After above-mentioned position in place after, be displaced the L- contact of the first measurement arm 201 303 contact of sensor moves to Z_E1, measurement arm L- displacement sensor minitype cylinder ejection.

(25) [E1 detects positioning]: maintaining measurement arm Y, and Z coordinate is constant, and the L- contact of the first measurement arm 201, which is displaced, to be passed 303 contact of sensor moves to X_E1+P；During this, if the L- tangent displacement sensor 303 of measurement arm has decrement, Stop motion immediately, and prompt location of workpiece deviation.

(26) [E1 measurement and positioning]: maintaining measurement arm Y, and Z coordinate is constant, and the L- contact of the first measurement arm 201, which is displaced, to be passed 303 contact of sensor is moved to the left 2P；During this, first measurement arm 201 L- displacement sensor will contact workpiece, measurement The movement speed of arm is slower, prevents sensor Rapid contact workpiece from generating vibration and impact.

(27) [pause of E1 debounce]: maintaining measurement arm X, and Y, Z coordinate is constant, suspends certain time t, keeps sensing data steady The decrement of sensor is recorded after fixed；In this step, if being demarcated to standard workpiece, the L- of the first measurement arm 201 is connect 303 decrement of touch displacement sensor is denoted as PL_C1；If being measured to measured workpiece 700, by the L- of the first measurement arm 201 303 decrement of tangent displacement sensor is denoted as PL_C1’。

(28) [calculating of E1 size]: the angular length of E1 is dimensioned as LC_E1If demarcation flow, decrement when calibration is P_C, If measurement procedure, decrement when measurement is P_C'；In conjunction with step (20), the angular width size LC of measured workpiece 700 is calculated_E1'= LC_E1+(P_C’-P_C)-(P_L1’-P_L1)。

(29) [E1 prepares to reset]: maintaining two measuring arm Y, and Z coordinate is constant, the L- contact displacement of the first measurement arm 201 303 contact of sensor moves to X_E1+ S, the first measurement arm 201L- displacement sensor minitype cylinder retract.

(30) [E2 measurement]: with reference to the size of (24)-(29) measurement E2 angular length, and ready position is returned to.

(31) [C1 prepares positioning]: the Y+ contact displacement sensing of the first measurement arm 201 of full-automatic contact type measurement machine 309 contact of device moves to (X_C1,Y_C1+ S) top；After above-mentioned position in place after, be displaced the Y+ contact of the first measurement arm 201 309 contact of sensor moves to Z_C1, measurement arm Y+ displacement sensor minitype cylinder ejection.

(32) [C1 detects positioning]: maintaining measurement arm X, and Z coordinate is constant, and the Y+ contact of the first measurement arm 201, which is displaced, to be passed 309 contact of sensor moves to Y_C1+P；During this, if the Y+ tangent displacement sensor 309 of measurement arm has decrement, Stop motion immediately, and prompt location of workpiece deviation.

(33) [C1 measurement and positioning]: maintaining measurement arm X, and Z coordinate is constant, and the Y+ contact of the first measurement arm 201, which is displaced, to be passed 309 contact of sensor moves forward 2P；During this, first measurement arm 201 Y+ displacement sensor will contact workpiece, measurement The movement speed of arm is slower, prevents sensor Rapid contact workpiece from generating vibration and impact.

(34) [pause of C1 debounce]: maintaining measurement arm X, and Y, Z coordinate is constant, suspends certain time t, keeps sensing data steady The decrement of sensor is recorded after fixed；In this step, if being demarcated to standard workpiece, the Y+ of the first measurement arm 201 is connect 309 decrement of touch displacement sensor is denoted as PC；If being measured to measured workpiece 700, the Y+ of the first measurement arm 201 is connect 309 decrement of touch displacement sensor is denoted as PC '.

(35) [calculating of C1 size]: C1 angular width is dimensioned as WC_C1, the angular width size of C1 needs the information of C3 measuring point, this When angular width data deficiencies wouldn't can calculate；Assuming that C3 measuring point demarcates standard workpiece, the Y+ of the first measurement arm 201 is contacted 309 decrement of formula displacement sensor is denoted as P_L1；If being measured to measured workpiece 700, the Y+ of the first measurement arm 201 is contacted 309 decrement of formula displacement sensor is denoted as P_L1'；The then calculation method WC of C1 angular width_C1'=WC_C1+(P_C’-P_C)-(P_L1’-P_L1)。

(36) [C1 prepares to reset]: maintaining two measuring arm Y, and Z coordinate is constant, the Y+ contact displacement of the first measurement arm 201 309 contact of sensor moves to Y_C1+ S, first, which measures Y+ displacement sensor minitype cylinder on arm 201, retracts.

(37) [C2 measurement]: with reference to the size of (31)-(36) measurement C2 angular width, and ready position is returned to.

(38) [C3 prepares positioning]: the Y+ contact displacement sensing of the first measurement arm 201 of full-automatic contact type measurement machine 309 contact of device moves to (X_C3,Y_C3+ S) top；After above-mentioned position in place after, be displaced the Y+ contact of the first measurement arm 201 309 contact of sensor moves to Z_C3, measurement arm Y+ displacement sensor minitype cylinder ejection.

(39) [C3 detects positioning]: maintaining measurement arm X, and Z coordinate is constant, and the Y+ contact of the first measurement arm 201, which is displaced, to be passed 309 contact of sensor moves to Y_C3+P；During this, if the Y+ tangent displacement sensor 309 of measurement arm has decrement, Stop motion immediately, and prompt location of workpiece deviation.

(40) [C3 measurement and positioning]: maintaining measurement arm X, and Z coordinate is constant, and the Y+ contact of the first measurement arm 201, which is displaced, to be passed 309 contact of sensor moves forward 2P；During this, first measurement arm 201 on Y+ displacement sensor will contact workpiece, measurement The movement speed of arm is slower, prevents sensor Rapid contact workpiece from generating vibration and impact.

(41) [pause of C3 debounce]: maintaining measurement arm X, and Y, Z coordinate is constant, suspends certain time t, keeps sensing data steady The decrement of sensor is recorded after fixed；In this step, if being demarcated to standard workpiece, Y+ on arm 201 is measured by first and is connect 309 decrement of touch displacement sensor is denoted as P₁；If being measured to measured workpiece 700, Y+ on arm 201 is measured by first and is connect 309 decrement of touch displacement sensor is denoted as P₁’。

(42) [calculating of C3 size]: C3 width calibration is having a size of W_C3, the width dimensions of C3 need the information of D3 measuring point, at this time Angular width data deficiencies wouldn't can calculate；Assuming that D3 measuring point demarcates standard workpiece, Y- contact on arm 201 is measured by first 310 decrement of displacement sensor is denoted as P₂；If measuring to measured workpiece 700, Y- contact on arm 201 is measured by first 310 decrement of displacement sensor is denoted as P₂'；The then calculation method W of C3 width_C3'=W_C3+(P₁’-P₁)+(P₂’-P₂)。

(43) [C3 prepares to reset]: maintaining two measuring arm Y, and Z coordinate is constant, Y+ contact displacement on the first measurement arm 201 309 contact of sensor moves to Y_C3+ S, first, which measures Y+ displacement sensor minitype cylinder on arm 201, retracts.

(44) [C4 measurement]: with reference to the size of (38)-(43) measurement C4 width, and ready position is returned to.

(45) [C5 measurement]: with reference to the size of (38)-(43) measurement C5 width, and ready position is returned to.

(46) [C6 measurement]: with reference to the size of (38)-(43) measurement C6 width, and ready position is returned to.

(47) [C7 measurement]: with reference to the size of (31)-(36) measurement C7 angular width, and ready position is returned to.

(48) [C8 measurement]: with reference to the size of (31)-(36) measurement C8 angular width, and ready position is returned to.

(49) [F1 measurement]: with reference to the size of (24)-(29) measurement F1 angular length, and ready position is returned to.

(50) [F2 measurement]: with reference to the size of (24)-(29) measurement F2 angular length, and ready position is returned to.

(51) [F3 measurement]: with reference to the size of (17)-(22) measurement F3 length, and ready position is returned to.

(52) [F4 measurement]: with reference to the size of (17)-(22) measurement F4 length, and ready position is returned to.

(53) [A8 measurement]: with reference to the size of (6)-(12) measurement A8 thickness, and ready position is returned to.

(54) [A5 measurement]: with reference to the size of (6)-(12) measurement A5 thickness, and ready position is returned to.

(55) [A2 measurement]: with reference to the size of (6)-(12) measurement A2 thickness, and ready position is returned to.

(56) [A3 measurement]: with reference to the size of (6)-(12) measurement A3 thickness, and ready position is returned to.

(57) [A6 measurement]: with reference to the size of (6)-(12) measurement A6 thickness, and ready position is returned to.

(58) [A9 measurement]: with reference to the size of (6)-(12) measurement A9 thickness, and ready position is returned to.

(59) [F5 measurement]: with reference to the size of (17)-(22) measurement F5 length, and ready position is returned to.

(60) [F6 measurement]: with reference to the size of (17)-(22) measurement F6 length, and ready position is returned to.

(61) [F7 measurement]: with reference to the size of (24)-(29) measurement F7 angular length, and ready position is returned to.

(62) [F8 measurement]: with reference to the size of (24)-(29) measurement F8 angular length, and ready position is returned to.

(63) [D7 prepares positioning]: Y- contact displacement sensing on the first measurement arm 201 of full-automatic contact type measurement machine 310 contact of device moves to (X_D7,Y_D7- S) top；After above-mentioned position in place after, be displaced Y- contact 310 contact of sensor moves to Z_D7, measurement arm Y- displacement sensor minitype cylinder ejection.

(64) [D7 detects positioning]: maintaining measurement arm X, and Z coordinate is constant, and the displacement of Y- contact passes on the first measurement arm 201 310 contact of sensor moves to Y_D7-P；During this, if the Y- tangent displacement sensor 310 of measurement arm has decrement, Stop motion immediately, and prompt location of workpiece deviation.

(65) [D7 measurement and positioning]: maintaining measurement arm X, and Z coordinate is constant, and the displacement of Y- contact passes on the first measurement arm 201 310 contact of sensor moves backward 2P；During this, Y- sensor will contact workpiece, the movement speed for measuring arm is slower, prevent Only sensor Rapid contact workpiece generates vibration and impact.

(66) [pause of D7 debounce]: maintaining measurement arm X, and Y, Z coordinate is constant, suspends certain time t, keeps sensing data steady The decrement of sensor is recorded after fixed；In this step, if being demarcated to standard workpiece, Y- on arm 201 is measured by first and is connect 310 decrement of touch displacement sensor is denoted as PC；If being measured to measured workpiece 700, Y- on arm 201 is measured by first and is connect 310 decrement of touch displacement sensor is denoted as PC '.

(67) [calculating of D7 size]: D7 angular width is dimensioned as WC_D7, the angular width size of D7 needs the information of D5 measuring point, this When angular width data deficiencies wouldn't can calculate；Assuming that D5 measuring point demarcates standard workpiece, Y- on arm 201 is measured by first and is contacted 310 decrement of formula displacement sensor is denoted as P_L1；If being measured to measured workpiece 700, Y- on arm 201 is measured by first and is contacted 310 decrement of formula displacement sensor is denoted as P_L1'；The then calculation method WC of D7 angular width_D7'=WC_D7+(P_C’-P_C)-(P_L1’-P_L1)。

(68) [D7 prepares to reset]: maintaining measurement arm X, and Z coordinate is constant, and the displacement of Y- contact passes on the first measurement arm 201 310 contact of sensor moves to Y_D7- S, measurement arm Y- displacement sensor minitype cylinder retract.

(69) [D8 measurement]: with reference to the size of (63)-(68) measurement D8 angular width, and ready position is returned to.

(70) [D5 prepares positioning]: Y- contact displacement sensing on the first measurement arm 201 of full-automatic contact type measurement machine 310 contact of device moves to (X_D5,Y_D5- S) top；After above-mentioned position in place after, be displaced Y- contact 310 contact of sensor moves to Z_D5, measurement arm Y- displacement sensor minitype cylinder ejection.

(71) [D5 detects positioning]: maintaining measurement arm X, and Z coordinate is constant, and the displacement of Y- contact passes on the first measurement arm 201 310 contact of sensor moves to Y_D5-P；During this, if the Y- tangent displacement sensor 310 of measurement arm has decrement, Stop motion immediately, and prompt location of workpiece deviation.

(72) [D5 measurement and positioning]: maintaining measurement arm X, and Z coordinate is constant, and the displacement of Y- contact passes on the first measurement arm 201 310 contact of sensor moves backward 2P；During this, Y- sensor will contact workpiece, the movement speed for measuring arm is slower, prevent Only sensor Rapid contact workpiece generates vibration and impact.

(73) [pause of D5 debounce]: maintaining measurement arm X, and Y, Z coordinate is constant, suspends certain time t, keeps sensing data steady The decrement of sensor is recorded after fixed；In this step, if being demarcated to standard workpiece, Y- on arm 201 is measured by first and is connect 310 decrement of touch displacement sensor is denoted as P1；If being measured to measured workpiece 700, Y- on arm 201 is measured by first and is connect 310 decrement of touch displacement sensor is denoted as P1 '.

(74) [calculating of D5 size]: the width measuring point of D5 can participate in calculating together in conjunction with the measuring point data of C5.

(75) [D5 prepares to reset]: maintaining measurement arm X, and Z coordinate is constant, and the displacement of Y- contact passes on the first measurement arm 201 310 contact of sensor moves to Y_D5- S, measurement arm Y- displacement sensor minitype cylinder retract.

(76) [D6 measurement]: with reference to the size of (70)-(75) measurement D6 width, and ready position is returned to.

(77) [D3 measurement]: with reference to the size of (70)-(75) measurement D3 width, and ready position is returned to.

(78) [D4 measurement]: with reference to the size of (70)-(75) measurement D4 width, and ready position is returned to.

(79) [D1 measurement]: with reference to the size of (63)-(68) measurement D1 angular width, and ready position is returned to.

(80) [D2 measurement]: with reference to the size of (63)-(68) measurement D2 angular width, and ready position is returned to.

(81) [E7 measurement]: with reference to the size of (24)-(29) measurement E7 angular length, and ready position is returned to.

(82) [E8 measurement]: with reference to the size of (24)-(29) measurement E8 angular length, and ready position is returned to.

(83) [E5 measurement]: with reference to the size of (17)-(22) measurement E5 length, and ready position is returned to.

(84) [E6 measurement]: with reference to the size of (17)-(22) measurement E6 length, and ready position is returned to.

(85) [return to origin]: all measuring point measurements terminate, and the first measurement arm 201Z axis returns to origin position；To in place it Afterwards, measurement amount arm X-axis returns to origin position, and longitudinal slide unit 400 returns to origin position, and positioning cylinder retracts, and workpiece unclamps.

(86) [robot blanking] sends blanking instruction to robot, waits robot blanking to complete, return step (1) etc. Feeding and measurement to next subjob.

In the above various embodiments, modular construction or technology unless otherwise instructed, then show its be this field be realize its The conventional components structure or routine techniques of function.

The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention. Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention Within protection scope.

Claims

1. a kind of full-automatic contact measuring apparatus, which is characterized in that be arranged including testboard bay, longitudinal sliding motion in testboard bay It is upper and can fixed placement measured workpiece longitudinal slide unit and the crossbeam that is suspended from above testboard bay, equipped with can edge on crossbeam Its at least one measurement arm being moved back and forth,

The measurement arm includes the upper traversing pedestal that can transversely move back and forth on crossbeam, the liter being mounted on upper traversing pedestal Drop bar and the first tangent displacement sensor component for being mounted on elevating lever bottom end, first tangent displacement sensor Component includes measurement direction respectively along several tangent displacement sensors vertically downward, laterally and/or longitudinally, is respectively to survey Measure direction Z- tangent displacement sensor vertically downward, measurement direction transversely X- tangent displacement sensor positioned opposite With opposite Y- tangent displacement sensor and the displacement of Y+ contact along longitudinal direction of X+ tangent displacement sensor and measurement direction Sensor；

The jacking measurement portion that can transversely move back and forth is additionally provided on the testboard bay in longitudinal slide unit lower position, it is described Jacking measurement portion includes the jacking pedestal that can be moved back and forth along testboard bay, the lifter plate jacked on pedestal is arranged in, with And be mounted on lifter plate and be higher than a tangent displacement sensor on its top, i.e. the Z+ contact of measurement direction vertically upward Formula displacement sensor.

2. a kind of full-automatic contact measuring apparatus according to claim 1, which is characterized in that the contact displacement passes Sensor includes sensor body and the contact along the elastic telescopic in corresponding measurement direction.

3. a kind of full-automatic contact measuring apparatus according to claim 2, which is characterized in that the contact and tested work The Maximum Contact width of part measuring surface is not less than the diameter of measured workpiece surface pores.

4. a kind of full-automatic contact measuring apparatus according to claim 2, which is characterized in that so that the contact position The compressed power of the contact of displacement sensor can overcome the yield force of workpiece surface burr in the pressure that workpiece surface generates.

5. a kind of full-automatic contact measuring apparatus according to claim 2, which is characterized in that the end of the contact is also The direction one of the central axis of the contact roller of different tangent displacement sensors equipped with contact roller, and in same measurement direction It causes.

6. a kind of full-automatic contact measuring apparatus according to claim 1, which is characterized in that the contact displacement passes Sensor passes through sensor anticollison block respectively and is mounted on elevating lever or lifter plate, and the sensor anticollison block is inhaled by magnetic device It is attached to be mounted on elevating lever or lifter plate, and the top of the corresponding tangent displacement sensor of sensor anticollison block distance away from From the maximum license decrement no more than the tangent displacement sensor.

7. a kind of full-automatic contact measuring apparatus according to claim 1, which is characterized in that in the elevating lever inside Sky, and be disposed with and along piston rod that it is vertically moved and the lifting cylinder of the piston rod can be drivingly connected in middle vacancy, The end position of the piston rod installs the Z- tangent displacement sensor.

8. a kind of full-automatic contact measuring apparatus according to claim 1, which is characterized in that the testboard bay is vertical It is equipped with middle part horizontal support to the middle position of slide unit stroke, is set on the horizontal support of middle part there are three the jacking measurement portion, Two of them jacking measurement portion is located at longitudinal slide unit stroke two sides, another jacking measuring point is under longitudinal slide unit stroke Side.

9. a kind of full-automatic contact measuring apparatus according to claim 1, which is characterized in that edge in the longitudinal slide unit It is longitudinally opposed to be provided with longitudinal register plate and longitudinal register cylinder, tested work is contacted in longitudinal register plate and longitudinal register cylinder The side of part is machined with longitudinal register face；

The testboard bay is equipped with front cross bracket in the front position of longitudinal slide unit stroke, fixed on front cross bracket It is no more than the auxiliary positioning plate of measured workpiece lateral length, the auxiliary equipped with two pieces of spacing for being located at longitudinal slide unit two sides The side of positioning plate towards measured workpiece is machined with auxiliary positioning face, and when longitudinal slide unit is moved to testboard bay front end, auxiliary Help the auxiliary positioning face of positioning plate and the longitudinal register face aligned coplanar of longitudinal register plate.

10. a kind of full-automatic contact measurement method uses the full-automatic contact type measurement as described in claim 1-9 is any Device is implemented, which is characterized in that the measurement method is divided into thickness measure, linear measure longimetry and width measurement Three models, wherein

Thickness measure step specifically:

(1-1) is established based on X-Y-Z coordinate system laterally, longitudinal and vertical, and measurement arm is made to return to home (X₀,Y₀,Z₀) simultaneously After so that jacking measurement portion is dropped to bottom, the standard workpiece of known dimensions is placed at the measurement position in longitudinal slide unit, is recorded Standard workpiece is in first thickness measurement position (X_T,Y_T,Z_T) with a thickness of T₀；

(1-2) traverse measurement arm and longitudinal slide unit make Z- tangent displacement sensor be in the first thickness measurement position of setting (X_T,Y_T,Z_T) surface ready position, i.e. (X_T,Y_T,Z_T+ S), S is Z- tangent displacement sensor and standard workpiece at this time Measured position surface distance；

(1-3) measures the vertical dropping distance S+P of arm, makes the tangent displacement sensor contact workpiece upper surface Z- and makes its contact It is compressed, while the Z+ displacement sensor for jacking measurement portion jacks up, and makes the contact standard workpiece following table of Z+ displacement sensor Face, Z+ displacement sensor are compressed, and record being compressed for Z- tangent displacement sensor and Z+ tangent displacement sensor respectively Stroke is P₁、P₂；

(1-4) measures arm lifting, jacking measurement portion decline, so that Z- tangent displacement sensor and Z+ tangent displacement sensor Contact be detached from standard workpiece surface；

(1-6) obtains first thickness with measured workpiece alternate standard workpiece, and in the way of step (1-1)~step (1-4) Z- tangent displacement sensor at measurement position is with Z+ tangent displacement sensor by compression travel P₁`、P₂`, i.e., according to public affairs Formula be calculated measured workpiece at the first thickness measurement position above and below thickness T=T between two measuring surface₀+(P₁`-P₁)+ (P₂`-P₂)；

(1-7) repeats step (1-6), records the Z- tangent displacement sensor and Z+ contact of remaining measurement position measured workpiece Displacement sensor corresponds to thickness by compression travel to get to remaining measurement position of measured workpiece；

Linear measure longimetry step specifically:

(2-1) makes to measure arm return home (X₀,Y₀,Z₀) and make to jack after measurement portion drops to bottom, standard workpiece is placed Two measurement point (X at the measurement position in longitudinal slide unit, in the first linear measure longimetry position_LR,Y_L,Z_L) and (X_LL,Y_L, Z_L) between length dimension be known as L₀；

(2-2) traverse measurement arm and longitudinal slide unit make the contact of X- tangent displacement sensor be in the measurement point (X of setting_LR, Y_L,Z_L) on the right side of ready position, i.e. (X_LR+S,Y_L,Z_L), make the contact of X- tangent displacement sensor at this time and standard workpiece quilt The distance for surveying surface of position is S；

(2-3) measures arm along the direction X- moving distance S+P, makes the quilt of the contact standard workpiece of X- tangent displacement sensor Survey surface of position simultaneously compress, record at this time X- tangent displacement sensor by compression travel be P₁；

(2-5) traverse measurement arm and longitudinal slide unit, the second length for making the contact of L+ tangent displacement sensor be in setting are surveyed Measure position (X_LL Y_L,Z_L) on the left of ready position, i.e. (X_LL-S,Y_L,Z_L), the contact and mark of X+ tangent displacement sensor at this time The distance on quasi- workpiece measured position surface is S；

(2-6) measures arm along the direction X+ moving distance S+P, keeps the contact standard workpiece of X+ tangent displacement sensor tested Surface of position simultaneously compresses, record at this time X+ tangent displacement sensor by compression travel be P₂；

(2-8) repeats the above steps (2-1)~step (2-7), the length of workpiece when being recorded in other linear measure longimetry positions, and Corresponding measurement point X- tangent displacement sensor and X+ tangent displacement sensor；

(2-9) obtains the first linear measure longimetry position with measured workpiece alternate standard workpiece, and according to step (2-1)~step (2-7) X- tangent displacement sensor and X+ tangent displacement sensor by compression travel P when setting₁` and P₂` to get arrive measured workpiece Length dimension L=L between corresponding two measurement points in the first linear measure longimetry position₀+(P₁`-P₁)+(P₂`-P₂)；

Width measurement step specifically:

(3-1) makes to measure arm return home (X₀,Y₀,Z₀) and make to jack after measurement portion drops to bottom, by the mark of known dimensions Quasi- workpiece is placed at the first width measurement location in longitudinal slide unit, two in the first width measurement location of the standard workpiece Measurement point (X_W,Y_WF,Z_W) and (X_W,Y_WB,Z_W) between width dimensions be known as W₀；

(3-2) traverse measurement arm and longitudinal slide unit make the contact of Y+ tangent displacement sensor be in the measurement point (X of setting_W, Y_WF,Z_W) in front of ready position, i.e. (X_W,Y_WF-S,Z_W), the contact of Y+ tangent displacement sensor and workpiece measured position at this time The distance for setting surface is S；

(3-3) longitudinal slide unit makes the contact standard workpiece quilt of Y+ tangent displacement sensor along the direction Y- moving distance S+P Survey surface of position simultaneously compress, record at this time Y+ tangent displacement sensor by compression travel be P₁；

(3-5) traverse measurement arm and longitudinal slide unit make the contact of Y- tangent displacement sensor be in the measurement point (X of setting_W, Y_WB,Z_W) rear ready position, i.e. (X_W,Y_WB+S,Z_W), the contact of Y- tangent displacement sensor and workpiece measured position at this time The distance for setting surface is S；

(3-6) makes longitudinal slide unit along the direction Y+ moving distance S+P, makes the contact standard workpiece of Y- tangent displacement sensor Measured position surface is simultaneously compressed, record at this time Y- tangent displacement sensor by compression travel be P₂；

(3-8) repeats the above steps (3-1)~step (3-7), the width of standard workpiece when being recorded in other width measurement locations Size and Y- tangent displacement sensor and Y+ tangent displacement sensor are in corresponding two measurement points by compression travel Data；

(3-9) is obtained according to step (3-1)~step (3-7) in the first width measurement position with measured workpiece alternate standard workpiece Y- tangent displacement sensor and Y+ tangent displacement sensor by compression travel data P when setting₁` and P₂` is tested to get arriving Width dimensions W=W of the workpiece between corresponding two measurement points of the first width measurement location₀+(P₁`-P₁)+(P₂`-P₂)；

11. a kind of full-automatic contact measurement method according to claim 10, which is characterized in that thickness, width and length It spends in measurement process, distance P is equal to the half that corresponding tangent displacement sensor effectively measures stroke.

12. a kind of full-automatic contact measurement method according to claim 10, which is characterized in that the value of distance S is greater than The value of distance P；

Before measurement, when tangent displacement sensor is in ready position, i.e. criterion distance workpiece or measured workpiece surface distance is S When, moving contact formula displacement sensor workpiece or measured workpiece to the distance that is near the mark is P, in moving process, if detection contact The decrement of formula displacement sensor is greater than 0, then stops mobile immediately and exit following detection step, meanwhile, prompt standard workpiece Or measured workpiece placement position deviation is excessive.