CN105784714B - It is a kind of that the whether qualified device of guard frame rail is detected by fish-eye lens group - Google Patents

It is a kind of that the whether qualified device of guard frame rail is detected by fish-eye lens group Download PDF

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Publication number
CN105784714B
CN105784714B CN201610201608.XA CN201610201608A CN105784714B CN 105784714 B CN105784714 B CN 105784714B CN 201610201608 A CN201610201608 A CN 201610201608A CN 105784714 B CN105784714 B CN 105784714B
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measurement
lens group
conveyer belt
workpiece
fish
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CN105784714A (en
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单晓杭
陈浪
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges

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  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The whether qualified device of guard frame rail is detected by fish-eye lens group the invention discloses a kind of, including pedestal, conveyer belt, close switch, block, push cylinder, measurement bracket, portal frame, image taking module, leading screw drive module, compression cylinder and overturning drive module, described image taking module is equipped with two groups, two groups of image taking modules are separately positioned on the rear and front end of measurement bracket, for carrying out Image Acquisition to two pairs of mounting hole before and after workpiece for measurement;Two groups of image taking modules include industrial camera, source of parallel light and lens group.The present invention using lens group curvature of field principle adjust the distance mounting hole farther out captured image be compressed rate adjustment, it is higher closer to intermediate compression ratio, compression ratio closer to both ends is lower, two mounting holes is closer to the distance in image through shooting, volume also accordingly increases, convenient for the progress of image discriminating, the accuracy of measurement result is greatly improved, improves the efficiency of detection.

Description

It is a kind of that the whether qualified device of guard frame rail is detected by fish-eye lens group
Technical field
The present invention relates to guard frame rail detection fields, and more specifically more particularly to one kind is detected by fish-eye lens group The whether qualified device of guard frame rail.
Background technology
The big production of modernization promotes industrial production socialization, specialization, high mechanization and automation, and this requires goods and materials Supply should distribute in time, it is rapid, accurate, while storage technique is also promoted to obtain rapid development.Steel shelf are as storage A member in setting is modern logistics center, the essential component of home-delivery center.Shelf are warehouse modernizations and improve The important tool of efficiency, shelf refer to the shelf of storage cargo, and shelf are for storing the safedeposit of work piece.For example, In general shop, cargo is often displayed on shelf, in order to improve the display of cargo, in order to be mounted in and unload cargo, And used a large amount of different components, wherein, whether the length of guard frame rail qualified, directly affect shelf can normal mounting, Influence shelf final mass.
Guard frame rail is usually the certain sheet metal component of length, and both ends have a pair of of mounting hole, the length of guard frame rail Degree requires very high, while mounting hole is necessarily placed at the position specified;Usual guard frame rail needed during production through Three punch forming, punching, cut-out processes are crossed, and the detection of guard frame rail is needed to survey again after the completion of all techniques Amount;Since length and position of mounting hole detection are that all techniques carry out after finishing, if there is event in wherein a certain process Barrier causes guard frame rail to occur unqualified, then can not be timely fed back to production process, consequence is to follow hard on a system of defective work Row substandard product.
Because the position of mounting hole of guard frame rail is fixed, therefore, as long as using the method for self study, a mark is selected Quasi- part shoots gauge orifice using industrial camera, as normal pictures, when carrying out guard frame rail detection to be measured, uses The picture that industrial camera is shot is compared with normal pictures, so can both be compared by the position of mounting hole with standard component Whether deviation is had to judge the length of guard frame rail to be measured, and can whether the mounting hole that take defective to be sentenced by observing Whether disconnected mounting hole is qualified.
But when utilizing industrial camera actual photographed, because the diameter of mounting hole is smaller, 10mm is typically less than, and two are pacified The distance between hole usually more than 50mm is filled, and the image of industrial camera shooting will usually include two mounting holes of the same end, So shooting the image come can seem that white space is excessive, and need the volume of two mounting holes shot very small, unfavorable It is handled in the picture in later stage.If desired the shooting precision of mounting hole is improved, then needs, using high-precision camera, to increase Equipment cost.
The content of the invention
It is a kind of by fish-eye lens group detection shelf it is an object of the invention in view of the above shortcomings of the prior art, provide The whether qualified device of crossbeam, the installation cost is relatively low, high certainty of measurement, can shoot two distant mounting holes Effect closer to the distance so as to improve the speed of image procossing, accelerates detection efficiency.
The technical proposal of the invention is realized in this way:Whether a kind of by fish-eye lens group to detect guard frame rail qualified Device, including pedestal, conveyer belt, close switch, block, push cylinder, measurement bracket, portal frame, image taking module, leading screw Drive module, compression cylinder and overturning drive module, the conveyer belt are arranged on pedestal, the feed inlet connection of the conveyer belt The discharge port of preposition cut off operation, the end of the conveyer belt are set gradually along conveying tape motion direction close to switch and block, Described to be embedded in close to switch on pedestal and be used for detecting whether have workpiece for measurement process on pedestal, the block is fixed on pedestal Top simultaneously is used to carry out /V to workpiece for measurement;The one side of the conveyer belt is provided perpendicular to the setting of conveyer belt carriage direction Push cylinder, opposite side are provided with measurement bracket, and described that push cylinder movement is controlled close to after switch triggering, push cylinder will be defeated The workpiece for measurement taken is sent to be pushed on measurement bracket;The compression cylinder be arranged on measurement bracket and close to conveyer belt into Material mouth, the compression cylinder are used to compress workpiece for measurement along conveying tape motion direction;The portal frame is being fixed on measurement bracket just Top, the left and right ends of portal frame are fixed on by two stents on pedestal;The both ends of the measurement bracket pass through two rotations Axis connection pedestal, the overturning drive module difference connect base and measurement bracket, when overturning drive module movement described in driving Measurement bracket is rotated along two rotation axis;
Described image taking module is equipped with two groups, and two groups of image taking modules are separately positioned on front and rear the two of measurement bracket End, for carrying out Image Acquisition to two pairs of mounting hole before and after workpiece for measurement;Two groups of image taking modules include industrial camera, put down Line light source and lens group, the source of parallel light are fixed on measurement bracket base, measure and are provided with and the source of parallel light on bracket The corresponding loophole in position, the industrial camera are arranged on the surface of source of parallel light, and the camera of the industrial camera erects Directly downward, the lens group is mounted on the camera of the industrial camera, and the lens group is divided for that can change industrial camera The curvature of field camera lens of resolution, the parallel rays that source of parallel light projects are irradiated to after loophole and mounting hole in lens group successively, Lens group reflects parallel rays, and the parallel rays compression ratio closer to lens group axis line location is higher, closer to head into The parallel rays compression ratio at group both ends is lower, and parallel rays is irradiated to after lens group reflects on industrial camera.
Further, closing housing, conveyer belt, close switch, block, measurement bracket, gantry are also equipped on the pedestal Frame, image taking module, leading screw drive module, compression cylinder and overturning drive module may be contained within enclosure.
Further, leading screw drive module is further included, the leading screw drive module is fixed on portal frame;The leading screw drives Dynamic model block includes positioning motor, shaft coupling and ball-screw, and positioning motor is fixed on portal frame, and ball-screw passes through two axis Bearing is fixed on portal frame, and the ball-screw is arranged in parallel with conveyer belt, and positioning motor connects ball wire by shaft coupling Thick stick is set with sliding block on the ball-screw, and the industrial camera of one of which image taking module is fixed by camera mounting base In one end of portal frame, the industrial camera of another group of image taking module is fixed on by camera mounting base on sliding block, described fixed Position motor driven ball screws drive the industrial camera being connected with sliding block to move along a straight line along the ball-screw when rotating.
Further, the push cylinder is arranged on the middle part of conveyer belt, and the front end of push cylinder is provided with the first pusher Plate.
Further, the measurement bracket is provided with slope close to the one side of conveyer belt.
Further, the feed inlet of the conveyer belt is provided at both ends with two pieces of postive stop baffles, and two pieces of postive stop baffles are parallel It sets, and the spacing between two pieces of postive stop baffles is equal to the width of conveyer belt.
Further, L-type rib is provided on the measurement bracket, two ribs of L-type rib are mutually perpendicular to, L-type gear The /V of workpiece for measurement other end when one rib on side compresses workpiece for measurement for push cylinder, another gear of L-type rib The /V of workpiece for measurement other end when side compresses workpiece for measurement for compression cylinder.
Further, the sliding block is equipped with U-shaped groove, and camera mounting base bottom is equipped with stripe shape sliding block, and the sliding block leads to U-shaped groove is crossed to be sleeved on bar shaped slide.
Further, the measurement bracket is equipped with magnetic railings ruler, and the piston rod end connection second of the compression cylinder pushes away Flitch is provided with and the matched magnetic grid head of the magnetic railings ruler on the second scraping wings.
Further, the overturning drive module includes the first bearing, the second bearing and tumble cylinder, and the first bearing is fixed On pedestal, the second bearing is fixed on measurement bracket, and the both ends of tumble cylinder are hinged respectively with the first bearing and the second bearing.
The present invention technical concept be:Workpiece for measurement can be by the long ribbon shape sheet metal component of an entirety in preposition cut off operation The workpiece for measurement of one one is cut into, after workpiece for measurement completes cut off operation, the workpiece for measurement after cut-out still can quilt The strip sheet metal component promotion do not cut off travels forward, and enters the charging of conveyer belt front end by the discharge port of preposition cut off operation At mouthful, the direction of motion of workpiece for measurement is limited by two pieces of postive stop baffles to shift, and workpiece for measurement passes through two pieces of limiting blocks Plate enters detection device;Workpiece for measurement can be driven accelerated motion after entering conveyer belt by conveyer belt, the movement speed that conveyer belt is set Degree is 1.5-2 times of discharge outlet workpiece for measurement speed in preposition cut off operation, and workpiece for measurement is in the case where the acceleration of conveyer belt drives It quickly enters in detection device, by close to switching and arriving at stop location, being blocked by block can not continue to move, close to switch The signal of workpiece for measurement process is received, and transmits the signal to controller, controller control push cylinder setting in motion pushes away Cylinder of supplying gas pushes to workpiece for measurement on measurement bracket from conveyer belt and a rib of the L-type rib of measured bracket blocks, Another rib direction of workpiece for measurement to the L ribs of measurement bracket is compressed, works as compression by compression cylinder cylinder moving at this time When cylinder and push cylinder are completed to compress operation, workpiece for measurement is in measurement position;It is clapped using the image at measurement bracket both ends It takes the photograph system to shoot the workpiece for measurement on measurement bracket, obtains the image of workpiece for measurement both ends position of mounting hole;By two groups The image of image capturing apparatus carries out image procossing, and the two and standard picture are compared, basis for estimation for mounting hole in the picture Center position, the size of mounting hole and installation bore edges with the presence or absence of defect, if the center position and mark of mounting hole Quasi- image is consistent, then it represents that the length of workpiece for measurement is identical with full-length, which is pieces O.K.;If mounting hole center Point position is different from standard picture, then it represents that the length and full-length of workpiece for measurement differ, which is unqualified Workpiece for measurement;If mounting hole size is unqualified or mounting hole marginal existence defect, then it represents that mounting hole is unqualified, and workpiece for measurement is also For unqualified workpiece for measurement.
After measurement, push cylinder and compression cylinder Rapid reset, overturning drive module movement drive measurement bracket to turn Dynamic blanking overturns drive module and measurement bracket is driven to be returned to initial position after blanking.Due to single measurement of the present invention Journey only needs 2-5s, and the just upper single workpiece for measurement cut-out of one of process finishes after single workpiece for measurement measurement, therefore detects Process can be carried out continuously automatically.
During compression cylinder moves, the magnetic grid head of compression cylinder front end can move on magnetic railings ruler, at this time basis The move distance of magnetic grid head can calculate the length of workpiece for measurement, which can directly read, and be mainly used for setting It is used when knowing pieces O.K..
One group of industrial camera of the present invention is arranged in leading screw drive module, be mainly used for adjusting this group of industrial camera with it is another Spacing between one group of industrial camera, to adapt to the measurement of the workpiece for measurement of different length.
The two pairs of mounting hole at guard frame rail both ends is shot, whether goods is correctly judged by the position of each pair mounting hole Whether the length of frame crossbeam is qualified, judges that mounting hole whether there is defect with normal pictures comparison by shooting picture.Because goods Frame crossbeam both ends are all provided with there are two mounting hole, the undersize 10mm of two mounting holes, and the distance between two mounting holes are past Toward more than 50mm, so if direct shot using industrial camera, it is necessary to two mounting holes are taken, then must adopt It is shot with the higher industrial camera of resolution ratio, the mounting hole otherwise taken is too small, is unfavorable for the processing of image;And it utilizes The curvature of field principle of lens group, the directional light that source of parallel light is sent is compressed directional light after lens group reflects, closer to axis The directional light compression ratio of heart line position is higher, and the directional light compression ratio closer to both ends is lower, be finally imaged as two distances compared with Near ellipse, although the image finally received is not two circles completely the same with mounting hole image, the present invention uses Judge whether guard frame rail to be measured is qualified with the idea of standard picture comparison, even if last image irregularly will not be to last Judgement result generate any influence.Simultaneously as two smaller mounting holes are amplified as larger image, can be greatly improved The accuracy of measurement accelerates the efficiency of image discriminating.
The beneficial effects of the present invention are:
1st, the configuration of the present invention is simple is compact, and production cost is low, and the detection process of mounting hole continuously carries out online, without interrupting Production process, greatly increases the production efficiency and detection efficiency, and is monitored in real time using testing result, effectively avoids producing Occur continuous underproof phenomenon in the process, improve the quality of production.
2nd, the present invention carries out the detection of mounting hole using the mode of industrial camera progress Image Acquisition, and passes through mounting hole and exist Position on image judges whether guard frame rail to be measured is qualified, and passes through the mounting hole shooting figure at guard frame rail both ends to be measured Judge whether mounting hole is qualified with the presence or absence of the length of defect and workpiece for measurement as the method that compares with standard picture, it should Detection process is convenient, and accuracy of detection is high.
3rd, the present invention realizes automatic charging, automatic detection and the automatic blanking of detection process, and whole process is without manually Processing avoids measurement error caused by the various human factors that manpower detection easily occurs;Whole device high degree of automation, pole It is big to improve detection efficiency and detection quality.
4th, the present invention can adjust the distance between two industrial cameras by leading screw drive module so that the present apparatus is applicable in In the detection of various various sizes of guard frame rails.
5th, the present invention is compressed rate tune using the adjust the distance captured image of mounting hole farther out of the curvature of field principle of lens group Whole, higher closer to intermediate compression ratio, the compression ratio closer to both ends is lower, two mounting holes in the image through shooting Closer to the distance, volume also accordingly increases, and convenient for the progress of image discriminating, greatly improves the accuracy of measurement result, improves The efficiency of detection.
6th, the present invention sets magnetic grid head in compression cylinder, and work to be measured is calculated indirectly using the move distance of compression cylinder The length of part, it is further to enhance the effect measured, improve the accuracy of detection.
Description of the drawings
The present invention is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not form to the present invention's Any restrictions.
Fig. 1 is a kind of stereogram that the whether qualified device of guard frame rail is detected by fish-eye lens group of the present invention.
Fig. 2 is that the present invention removes the stereogram after closing housing.
Fig. 3 is a kind of front view that the whether qualified device of guard frame rail is detected by fish-eye lens group of the present invention.
Fig. 4 is a kind of bottom view that the whether qualified device of guard frame rail is detected by fish-eye lens group of the present invention.
Fig. 5 is A-A sectional views of the present invention.
Fig. 6 is the structure diagram of present invention measurement bracket.
Fig. 7 is the structure diagram of present invention slider.
Fig. 8 is the connection diagram of industrial camera and sliding block of the present invention.
Fig. 9 is the structure diagram of present invention overturning drive module.
Figure 10 is the schematic diagram for the standard picture that industrial camera of the present invention is shot.
In figure, 1- pedestals, 2- workpieces for measurement, 3- conveyer belts, 4- push cylinders, 5- measurements bracket, 6- industrial cameras, 7- are saturating The close switch of microscope group, 8- compression cylinders, 9-, 10- blocks, 11- portal frames, 12- positioning motors, 13- ball-screws, 14- shaft couplings Device, 15- postive stop baffles, 16-L types rib, 17- stents, 18- bearing blocks, 19- sliding blocks, the first scraping wings of 20-, the second pushers of 21- Plate, 22- slopes, 23- bar shapeds slide, 24- loopholes, 25- magnetic grids head, 26- magnetic railings rulers, the first bearings of 27-, 28- second Seat, 29- tumble cylinders, 30- closing housing.
Specific embodiment
The present invention is further detailed below in conjunction with the accompanying drawings:
Refering to shown in Fig. 1~10, it is of the invention it is a kind of by fish-eye lens group detect guard frame rail whether qualified device Including pedestal (1), conveyer belt (3), close switch (9), block (10), push cylinder (4), measurement bracket (5), portal frame (11), image taking module, leading screw drive module, compression cylinder (8) and overturning drive module, the conveyer belt (3) are arranged on On pedestal (1), the feed inlet of the conveyer belt (3) connects the discharge port of preposition cut off operation, the end edge of the conveyer belt (3) Conveyer belt (3) direction of motion is set gradually close to switch (9) and block (10), described to be embedded in close to switch (9) on pedestal (1) And whether having workpiece for measurement (2) process on pedestal (1) for detecting, the block (10) is fixed on above pedestal (1) and is used for /V is carried out to workpiece for measurement (2);The one side of the conveyer belt (3) is provided perpendicular to the setting of conveyer belt (3) carriage direction Push cylinder (4), opposite side are provided with measurement bracket (5), after the triggering close to switch (9) push cylinder (4) are controlled to move, Workpiece for measurement (2) on conveyer belt (3) is pushed on measurement bracket (5) by push cylinder (4);The compression cylinder (8) is set On measurement bracket (5) and close to the feed inlet of conveyer belt (3), the compression cylinder (8) is used for along conveyer belt (3) direction of motion Compress workpiece for measurement (2);The portal frame (11) is fixed on directly over measurement bracket (5), and the left and right ends of portal frame (11) lead to Two stents (17) are crossed to be fixed on pedestal (1);The both ends of the measurement bracket (5) by two rotation axis connect bases (1), The overturning drive module difference connect base (1) and measurement bracket (5), overturning drive module drive the measurement support when moving Frame (5) is rotated along two rotation axis.
Described image taking module is equipped with two groups, and two groups of image taking modules are separately positioned on the front and rear of measurement bracket (5) Both ends, for carrying out Image Acquisition to two pairs of mounting hole before and after workpiece for measurement (2);Two groups of image taking modules include industrial phase Machine (6), source of parallel light and lens group (7), the source of parallel light are fixed on measurement bracket (5) bottom, are set on measurement bracket (5) Have and be arranged on the surface of source of parallel light with the corresponding loophole in source of parallel light position (24), the industrial camera (6), Downwards, the lens group (7) is mounted on the camera of the industrial camera (6) camera of the industrial camera (6), The lens group (7) is the curvature of field camera lens that can change industrial camera (6) resolution ratio, and the parallel rays that source of parallel light projects is successively It being irradiated to after loophole (24) and mounting hole in lens group (7), lens group (7) reflects parallel rays, closer to The parallel rays compression ratio of lens group (7) axis line location is higher, and the parallel rays compression ratio closer to head into group both ends is lower, puts down Row light is irradiated to after lens group (7) refraction on industrial camera (6).
Closing housing (30) is also equipped on the pedestal (1), conveyer belt (3) is held in the palm close to switch (9), block (10), measurement Frame (5), portal frame (11), image taking module, leading screw drive module, compression cylinder (8) and overturning drive module may be contained within It is internal to close housing (30).
The present apparatus further includes leading screw drive module, and the leading screw drive module is fixed on portal frame (11);The leading screw Drive module includes positioning motor (12), shaft coupling (14) and ball-screw (13), and positioning motor (12) is fixed on portal frame (11) on, ball-screw (13) is fixed on by two bearing blocks (18) on portal frame (11), the ball-screw (13) with it is defeated Band (3) is sent to be arranged in parallel, positioning motor (12) connects ball-screw (13) by shaft coupling (14), on the ball-screw (13) Sliding block (19) is set with, the industrial camera (6) of one of which image taking module is fixed on portal frame by camera mounting base (11) one end, the industrial camera (6) of another group of image taking module is fixed on by camera mounting base on sliding block (19), described The industrial camera (6) that is connected with sliding block (19) is driven when positioning motor (12) driving ball-screw (13) rotates along the ball wire Thick stick (13) moves along a straight line.
The push cylinder (4) is arranged on the middle part of conveyer belt (3), and the front end of push cylinder (4) is provided with the first pusher Plate (20).
The measurement bracket (5) is provided with slope (22) close to the one side of conveyer belt (3).Bracket 5 is measured to drive in overturning If the effect without the slope 22 when being rotated under the action of dynamic model block around rotation axis inevitably results in the edge and bottom of measurement bracket 5 It is touched between seat 1, causing to rotate cannot be normally carried out;Slope 22 can facilitate workpiece 2 to enter from pedestal 1 and measure simultaneously In bracket 5, prevent workpiece from being blocked in the junction of pedestal 1 and measurement bracket 5.
The feed inlet of the conveyer belt (3) is provided at both ends with two pieces of postive stop baffles (15), and two pieces of postive stop baffles (15) are flat Row is set, and the spacing between two pieces of postive stop baffles (15) is equal to the width of conveyer belt (3).
L-type rib (16) is provided on the measurement bracket (5), two ribs of L-type rib (16) are mutually perpendicular to, L-type The /V of workpiece for measurement (2) other end, L-type when one rib of rib (16) compresses workpiece for measurement (2) for push cylinder (4) The /V of workpiece for measurement (2) other end when another rib of rib (16) compresses workpiece for measurement (2) for compression cylinder (8).
The sliding block (19) is equipped with U-shaped groove, and camera mounting base bottom is equipped with stripe shape sliding block (19), the sliding block (19) It is sleeved on by U-shaped groove on bar shaped slide (23).Ensure sliding block 19 under the collective effect of bar shaped guide rail 23 and ball-screw 13 It moves along a straight line along the direction parallel with 3 direction of motion of conveyer belt.
The measurement bracket (5) is equipped with magnetic railings ruler (26), and the piston rod end connection second of the compression cylinder (8) pushes away Flitch (21) is provided with magnetic grid head (25) matched with the magnetic railings ruler (26) on the second scraping wings (21).Compression cylinder 8 is transported When dynamic the second scraping wings 21 of 8 front end of compression cylinder is driven to move, first 25 synchronous fortune of magnetic grid is driven when the second scraping wings 21 moves Distance dynamic, that the first 25 detection compression cylinder 8 of magnetic grid moves, can be with according to the data of magnetic railings ruler 26 during 8 initial position of compression cylinder Calculate the length of workpiece.The main function of magnetic railings ruler 26 be replace measure various sizes of workpiece when, it is long to standard workpiece The measurement of degree.
The overturning drive module includes the first bearing (27), the second bearing (28) and tumble cylinder (29), the first bearing (27) be fixed on pedestal (1), the second bearing (28) is fixed in measurement bracket (5), the both ends of tumble cylinder (29) respectively with First bearing (27) and the second bearing (28) are hinged.The pedestal of tumble cylinder 29 connects the first bearing 27, the work of tumble cylinder 29 Stopper rod end connects the second bearing 28, and the first bearing 27 is fixed, and tumble cylinder 29 in itself can be around first when moving Seat 27 is rotated, and the piston rod end of tumble cylinder 29 drives two piece rotation axis of second bearing 29 on measurement bracket 5 to turn It is dynamic, so as to fulfill the rotary unloading of measurement bracket 5.Drive module is overturn using cam mechanism, can ensure to measure bracket one Determine to rotate in angular range.
Embodiment provided above is the better embodiment of the present invention, only is used for facilitating illustrating the present invention, not to this hair The limitation of bright work in any form, any those of ordinary skill in the art, if putting forward skill not departing from the present invention In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and Without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.

Claims (10)

1. a kind of detect the whether qualified device of guard frame rail by fish-eye lens group, it is characterised in that:Including pedestal (1), defeated Send band (3), close to switch (9), block (10), push cylinder (4), measurement bracket (5), portal frame (11), image taking module, Leading screw drive module, compression cylinder (8) and overturning drive module, the conveyer belt (3) are arranged on pedestal (1), the conveying The feed inlet of band (3) connects the discharge port of preposition cut off operation, and the end of the conveyer belt (3) is along conveyer belt (3) direction of motion It sets gradually close to switch (9) and block (10), it is described to be embedded in close to switch (9) on pedestal (1) and for detecting pedestal (1) On whether have workpiece for measurement (2) process, the block (10) is fixed on above pedestal (1) and for being carried out to workpiece for measurement (2) /V;The one side of the conveyer belt (3) is provided perpendicular to the push cylinder (4) of conveyer belt (3) carriage direction setting, opposite side Measurement bracket (5) is provided with, after the triggering close to switch (9) push cylinder (4) is controlled to move, push cylinder (4) will convey Workpiece for measurement (2) on band (3) is pushed on measurement bracket (5);The compression cylinder (8) be arranged in measurement bracket (5) and Close to the feed inlet of conveyer belt (3), the compression cylinder (8) is used to compress workpiece for measurement (2) along conveyer belt (3) direction of motion; The portal frame (11) is fixed on directly over measurement bracket (5), and the left and right ends of portal frame (11) are solid by two stents (17) It is scheduled on pedestal (1);The both ends of the measurement bracket (5) pass through two rotation axis connect bases (1), the overturning drive module Connect base (1) and measurement bracket (5) respectively, overturning drive module drive the measurement bracket (5) along two rotations when moving Axis rotates;
Described image taking module is equipped with two groups, and two groups of image taking modules are separately positioned on the rear and front end of measurement bracket (5), For carrying out Image Acquisition to two pairs of mounting hole before and after workpiece for measurement (2);Two groups of image taking modules include industrial camera (6), source of parallel light and lens group (7), the source of parallel light are fixed on measurement bracket (5) bottom, are provided on measurement bracket (5) With the corresponding loophole in source of parallel light position (24), the industrial camera (6) is arranged on the surface of source of parallel light, institute State the camera of industrial camera (6) downwards, the lens group (7) is mounted on the camera of the industrial camera (6), institute It is that can change the curvature of field camera lens of industrial camera (6) resolution ratio to state lens group (7), and the parallel rays that source of parallel light projects passes through successively It is irradiated to after crossing loophole (24) and mounting hole in lens group (7), lens group (7) reflects parallel rays, closer to saturating The parallel rays compression ratio of microscope group (7) axis line location is higher, and the parallel rays compression ratio closer to head into group both ends is lower, parallel Light is irradiated to after lens group (7) refraction on industrial camera (6).
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 2. according to claim 1 It is:Closing housing (30), conveyer belt (3), close switch (9), block (10), measurement bracket are also equipped on the pedestal (1) (5), portal frame (11), image taking module, leading screw drive module, compression cylinder (8) and overturning drive module may be contained within sealing Closed shell body (30) is internal.
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 3. according to claim 1 It is:Leading screw drive module is further included, the leading screw drive module is fixed on portal frame (11);The leading screw drive module bag Positioning motor (12), shaft coupling (14) and ball-screw (13) are included, positioning motor (12) is fixed on portal frame (11), ball wire Thick stick (13) is fixed on by two bearing blocks (18) on portal frame (11), and the ball-screw (13) is parallel with conveyer belt (3) to be set It puts, positioning motor (12) connects ball-screw (13) by shaft coupling (14), and sliding block is set on the ball-screw (13) (19), the industrial camera (6) of one of which image taking module is fixed on one end of portal frame (11) by camera mounting base, separately The industrial camera (6) of one group of image taking module is fixed on by camera mounting base on sliding block (19), the positioning motor (12) The industrial camera (6) being connected with sliding block (19) is driven to be transported along the ball-screw (13) straight line when driving ball-screw (13) rotates It is dynamic.
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 4. according to claim 1 It is:The push cylinder (4) is arranged on the middle part of conveyer belt (3), and the front end of push cylinder (4) is provided with the first scraping wings (20)。
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 5. according to claim 1 It is:The measurement bracket (5) is provided with slope (22) close to the one side of conveyer belt (3).
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 6. according to claim 1 It is:The feed inlet of the conveyer belt (3) is provided at both ends with two pieces of postive stop baffles (15), and two pieces of postive stop baffles (15) are parallel to be set It puts, and the spacing between two pieces of postive stop baffles (15) is equal to the width of conveyer belt (3).
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 7. according to claim 1 It is:L-type rib (16) is provided on the measurement bracket (5), two ribs of L-type rib (16) are mutually perpendicular to, L-type rib (16) /V of workpiece for measurement (2) other end, L-type rib when a rib compresses workpiece for measurement (2) for push cylinder (4) (16) /V of workpiece for measurement (2) other end when another rib compresses workpiece for measurement (2) for compression cylinder (8).
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 8. according to claim 3 It is:The sliding block (19) is equipped with U-shaped groove, and camera mounting base bottom is equipped with stripe shape sliding block (19), and the sliding block (19) is logical U-shaped groove is crossed to be sleeved on bar shaped slide (23).
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 9. according to claim 1 It is:The measurement bracket (5) is equipped with magnetic railings ruler (26), and the piston rod end of the compression cylinder (8) connects the second pusher Plate (21) is provided with magnetic grid head (25) matched with the magnetic railings ruler (26) on the second scraping wings (21).
A kind of the whether qualified device of guard frame rail, feature are detected by fish-eye lens group 10. according to claim 1 It is:The overturning drive module includes the first bearing (27), the second bearing (28) and tumble cylinder (29), the first bearing (27) It is fixed on pedestal (1), the second bearing (28) is fixed in measurement bracket (5), and the both ends of tumble cylinder (29) are respectively with first Bearing (27) and the second bearing (28) are hinged.
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