A kind of detection system of product appearance
Technical field
The utility model belongs to technical field of vision detection, and in particular to a kind of detection system of product appearance.
Background technique
Vision-based detection refers to will be ingested by machine vision product (i.e. image-pickup device is divided into two kinds of CMOS and CCD)
Target is converted into picture signal, sends dedicated image processing system to, according to the information such as pixel distribution and brightness, color, turns
Become digitized signal;Picture system carries out various operations to these signals to extract clarification of objective, and then according to differentiation
As a result come control scene device action.Vision-based detection is in detection defect and faulty goods is prevented to be dispensed into the function of consumer
Energy aspect, has immeasurable value.
Chinese patent literature CN205941394U discloses a kind of CCD detection device of medical accessory, including light supply apparatus
And camera.Wherein, light supply apparatus provides required light source for shooting;Camera is fixedly mounted in corresponding height, light supply apparatus
It is arranged in camera following location directly with profile to be measured, and by adjusting the linear distance between camera and profile to be measured, i.e.,
The focal length of camera is adjusted, to carry out vision-based detection to profile to be measured, guarantees the photograph accuracy of camera shooting.
But the detection device of above structure, it only can be to the table of the part to be detected for the underface for being right against shooting camera
Face carries out shot detection, and during for being shot compared with long profiles, it needs artificially along the length side of profile to be measured
To mobile camera or mobile profile to be measured, to carry out track up to profile.Thus, in camera to longer shooting to be detected
In the process, camera is constantly in motion state, and due to the factor of artificial displacement error, the moving direction of inevitable ground camera is not
It is able to maintain on the same line, even if camera, when along same linear movement, which can also be with the axis institute of profile to be measured
The phenomenon that straight line at place, there are intersections, and the pattern inclination or imperfect taken is eventually led to, cause detection accuracy low
The problem of.
Utility model content
Therefore, the technical problem to be solved by the utility model is to CCD detection devices in the prior art to long profiles
In detection process, the low defect of detection accuracy.
For this purpose, the utility model provides a kind of detection system of product appearance, including
First support;
Track, the length direction along the first support are arranged in the first support;
Sliding block is slidably disposed on the track;
Image acquisition mechanism is fixed on the slide block and is stretched out outside the first support;Described image collecting mechanism
Camera lens is under;
Driving mechanism is installed on the slide block, for driving the sliding block to slide on the track, the driving machine
Structure and described image collecting mechanism are located at the two sides of the sliding block.
Preferably, the detection system of the product appearance of this structure, the driving mechanism include
Rack gear, and the parallel track and is fixed in the first support;
Gear is engaged with the rack gear;
First driver is fixed on the slide block, and the first rotary shaft of first driver is plugged on the gear
Inner hole in.
It is further preferred that the detection system of the product appearance of this structure, the sliding block includes fixing on the track
Bottom plate, the first side plate and the second side plate being vertically mounted on the two sides of the top surface of the bottom plate respectively;
First driver be mounted on the bottom plate and be located at the bottom plate and first side plate, the second side plate it
Between in the installation space that surrounds;
The rack and pinion is located at outside the sliding block, and the first rotary shaft of first driver passes through first side
Plate is connected to the gear;Described image collecting mechanism is mounted in the outside wall surface of second side plate.
It is further preferred that the detection system of the product appearance of this structure, described image collecting mechanism includes vertically arranged
The first fixed plate on the slide block;The adjusting component being mounted vertically in first fixed plate;It is mounted on the adjusting
Camera on component, the camera lens of the camera is under;The adjusting component is fixed described first for adjusting the camera
Vertical height on plate.
It is further preferred that the detection system of the product appearance of this structure, the adjusting component include it is vertical slideably
The first adjusting block in first fixed plate is set;The screw rod being vertically threaded through on first adjusting block, the phase
Machine is fixed on the bottom of the screw rod;And when the camera is adjusted to desired height, for the screw lock to be existed
Locking piece on first adjusting block.
It is further preferred that the detection system of the product appearance of this structure, the adjusting component further includes being horizontally arranged at
Transition plates on the top surface of first adjusting block, the transition plates protrude horizontally up outside first adjusting block, the spiral shell
Bar is vertically threaded through in the transition plates;And
The second adjusting block being vertically fixed on the screw rod bottom, first adjusting block are located at second adjusting block
Between first fixed plate;
The camera is fixed on the bottom of the screw rod and being fixed on second adjusting block.
It is further preferred that the detection system of the product appearance of this structure, the locking piece is nut.
It is further preferred that the detection system of the product appearance of this structure, at least two are offered in first fixed plate
A mounting hole, two mounting holes are distributed on vertical different height;
First adjusting block passes through on the fixed mounting hole on the first fixing plate of fastener.
It is further preferred that the detection system of the product appearance of this structure, further includes vertically being slidably disposed on institute
The concentrator marker in the first fixed plate is stated, the concentrator marker is used for when detecting that profile to be detected is improper, in the profile
Surface on mark preset mark.
It is further preferred that the detection system of the product appearance of this structure, described image collecting mechanism further include with it is described
The area source mounting plate that first fixed plate is fixedly connected, surface of the area source mounting plate under are provided with area source, institute
Area source mounting plate is stated to be parallel to the horizontal plane or be obliquely installed.
Technical solution provided by the utility model, has the following advantages that:
1. the detection system of product appearance provided by the utility model, including first support, track, sliding block, Image Acquisition
Mechanism and driving mechanism.Wherein, track is arranged in the first support along the length direction of the first support;Sliding block,
It is slidably disposed on the track;Image acquisition mechanism is fixed on the slide block and is stretched out outside the first support;Institute
The camera lens of image acquisition mechanism is stated under;Driving mechanism is installed on the slide block, for driving the sliding block in the rail
It is slided on road, the driving mechanism and described image collecting mechanism are located at the two sides of the sliding block.
The detection system of the product appearance of this structure, for longer profile take pictures detect when, Image Acquisition machine
Structure slides setting by sliding block and track in first support, thus in profile vision inspection process, the axis of profile to be measured
Be arranged in parallel with the fixation of the axis direction of pre-set first support, at this point, eliminate in the prior art human factor to bat
The influence of effect is taken the photograph, the image for the profile to be measured that detection system is shot will all be imaged on default center position, guarantee
The pattern integrity that shooting obtains, while improving the precision of testing result.
2. the detection system of product appearance provided by the utility model, the driving mechanism includes rack gear, with the track
In parallel and it is fixed in the first support;Gear is engaged with the rack gear;First driver is fixed on the slide block, institute
The first rotary shaft for stating the first driver is plugged in the inner hole of the gear.By between wheel and rack engaged transmission,
Guarantee sliding block and the image detection mechanism stability that straight line transmits in the detection process.
3. the detection system of product appearance provided by the utility model, is characterized in that, described image collecting mechanism includes perpendicular
To the first fixed plate of setting on the slide block;The adjusting component being mounted vertically in first fixed plate;It is mounted on institute
The camera adjusted on component is stated, the camera lens of the camera is under;The adjusting component is for adjusting the camera described the
Vertical height in one fixed plate.
The detection system of the product appearance of this structure, adjust component to the straight line between camera and profile to be measured away from
From the focal length of i.e. adjustment camera is carried out apart from adjusting, to be further ensured that the essence for the image that image acquisition mechanism collects
Exactness excludes influence of the blurred picture to testing result.
4. the detection system of product appearance provided by the utility model, the adjusting component includes vertically being mounted slidably
The first adjusting block in first fixed plate;The screw rod being vertically threaded through on first adjusting block, the camera are solid
It is scheduled on the bottom of the screw rod;And when the camera is adjusted to desired height, it is used for the screw lock described
Locking piece on first adjusting block.The adjusting component further includes being horizontally arranged on the top surface of first adjusting block
Transition plates, the transition plates protrude horizontally up outside first adjusting block, and the screw rod is vertically threaded through in the transition plates;And it is perpendicular
To the second adjusting block being fixed on the screw rod bottom, first adjusting block is located at second adjusting block and described first
Between fixed plate;The camera is fixed on the bottom of the screw rod and being fixed on second adjusting block.
The detection system of the product appearance of this structure, by adjusting the first adjusting block, to carry out coarse adjustment to camera focus
It is whole;In addition, adjusting the second adjusting block by the way that screw thread is axially screwed or loosened and the first adjusting block being opposite in vertical height
Distance, further focusing carry out accurate adjust and control;Transition plates provides fixing end for the opposite adjustment of the second adjusting block, just
It is moved in vertical height in the second adjusting block.
5. the detection system of product appearance provided by the utility model further includes vertically being slidably disposed on described
Concentrator marker in one fixed plate, the concentrator marker is used for when detecting that profile to be detected is improper, in the table of the profile
Preset mark is marked on face.
The detection system of the product appearance of this structure, the setting of concentrator marker, convenient for users to all being detected in all profiles
After the completion, choose underproof profile in detection process, to distinguish to underproof profile and qualified profile, further
Guarantee the accuracy of subsequent detection.
6. the detection system of product appearance provided by the utility model, described image collecting mechanism further include and described first
The area source mounting plate that fixed plate is fixedly connected, surface of the area source mounting plate under are provided with area source, the face
Light source mounting plate is parallel to the horizontal plane or is obliquely installed.To further take pictures and provide for camera in vision inspection process
Sufficient light source, to guarantee the precision of imaging of the big visual field result in detection process.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the detection system of product appearance provided in embodiment 1;
Fig. 2 is the structure enlargement diagram of the detection system of the product appearance in Fig. 1 centre circle A;
Fig. 3 is that the detection system of product appearance provided in embodiment 1 has the installation knot of two groups of image acquisition mechanisms
Structure schematic diagram;
Fig. 4 is the structural schematic diagram of the detection system of product appearance provided in embodiment 2;
Fig. 5 is the structural schematic diagram of the detection system of product appearance provided in embodiment 3;
Description of symbols:
1- first support;
2- track;
3- sliding block;31- bottom plate;The first side plate of 32-;The second side plate of 33-
The first fixed plate of 41-;The first adjusting block of 4211-;The second adjusting block of 4212-;4213- transition plates;422- screw rod;
423- locking piece;424- concentrator marker;43- camera;44- area source;45- area source mounting plate;
51- rack gear;52- gear;The first driver of 53-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment 1
The present embodiment provides a kind of detection systems of product appearance, as shown in Figure 1 to Figure 3, including first support 1, track
2, sliding block 3, image acquisition mechanism and driving mechanism.
Wherein, track 2 is arranged in first support 1 along the length direction of first support 1;Sliding block 3 is slidably disposed on
On track 2;Image acquisition mechanism is fixed on sliding block 3, and is stretched out outside first support 1;Under the camera lens direction of image acquisition mechanism,
To take pictures to profile to be measured towards upper surface;Driving mechanism is mounted on sliding block 3, for driving sliding block 3 in track 2
Installation is respectively set in the two sides of sliding block 3 in upper sliding, driving mechanism and image acquisition mechanism.
As depicted in figs. 1 and 2, in the present embodiment, driving mechanism includes the gear 52 that rack gear 51 and rack gear 51 are engaged
And first driver 53.Wherein, rack gear 51 is parallel with track 2 and is fixed in first support 1;In addition, the first driver 53
The first rotary shaft be plugged in the inner hole of gear 52.For example, the first driver 53 is motor, the first rotary shaft in the present embodiment
Output shaft driven gear 52 for the output shaft of motor, motor rotates, to make sliding block 3 and image acquisition mechanism along rack gear 51
Length direction sliding.By the engaged transmission between gear 52 and rack gear 51, guarantee that sliding block 3 and image detection mechanism are detecting
The stability of straight line transmitting in the process.
As depicted in figs. 1 and 2, in the present embodiment, sliding block 3 includes bottom plate 31, the first side plate 32 and the second side plate 33,
In, bottom plate 31 is fixed on track 2, and the first side plate 32 and the second side plate 33 are vertically separately mounted to the top surface of bottom plate 31
Two sides on.Specifically, motor is fixedly mounted on bottom plate 31 in the present embodiment, and be located at bottom plate 31 and the first side plate 32,
In the installation space surrounded between second side plate 33;The output shaft of motor passes through the first side plate 32, and rack gear 51 and gear 52 are located at
Outside installation space.
As shown in Fig. 2, image acquisition mechanism provided in this embodiment, including:First fixed plate 41 adjusts component and camera
43.Wherein, the first fixed plate 41 is vertically provided in the outside wall surface of the second side plate 33, is adjusted component and is movably mounted at first
In fixed plate 41;Camera 43, which is mounted on, to be adjusted on component, and 43 camera lens of camera shoots profile to be measured towards lower.
Preferably, adjusting component includes adjusting block, the screw rod being arranged on adjusting block 422 and locking piece 423.Wherein,
As shown in Fig. 2, adjusting block includes the first adjusting block 4211 and the second adjusting block 4212 disposed in parallel on vertical direction;First adjusts
Locking nub 4211 is mounted vertically in the first fixed plate 41, and the second adjusting block 4212 is fixed on the first adjusting block by screw rod 422
On 4211.Specifically, the transition plates 4213 protruded horizontally up outward is provided on the top surface of the first adjusting block 4211;First adjusts
The top of locking nub 4211 is higher than the top of the second adjusting block 4212, and screw rod 422 is vertically threaded through the opened up in transition plates 4213
In one through-hole, camera 43 is fixed on the bottom of screw rod 422, and locking piece 423 is preferably nut, and nut is arranged and is locked at screw rod
On 422, the bottom of nut is connected on the top surface of transition plates 4213.
When needing to camera 43 when the position of vertical height is finely adjusted, the nut on screw rod 422 can be first unclamped, is moved
Screw rod 422 later after being highly adjusted in place, then is locked with nut, is realized by dynamic height of the screw rod 422 in transition plates 4213
To the fine adjustment function of height and position of the camera 43 in the first fixed plate 41.
Meanwhile to adjust position height of first adjusting block 4211 in the first fixed plate 41, opened in the first fixed plate 41
If vertically multiple installation through-holes of different height distribution, the first adjusting block 4211 are fixed on the first fixed plate 41 by fastener
On installation through-hole on;When needing to change height of first adjusting block 4211 in the first fixed plate 41, loosening fasteners will
First adjusting block 4211 is moved at the installation through-hole of higher position or at the installation through-hole of more lower position, then passes through fastener
First adjusting block 4211 is fixed in the first fixed plate 41, to realize to the first adjusting block 4211 and the second adjusting block
4212, the whole height in the first fixed plate 41 of camera 43, realizes the coarse adjustment function to the height and position of camera 43.
Above-mentioned coarse adjustment and fine adjustment function can change the camera lens and the distance between profile to be detected of camera 43, real
Now to the adjustment of the focal length of camera 43.For example, being realized by fine tuning to camera 43 when camera 43 obtains relatively clear image
The accurate positioning of focal length, obtain the most clearly image when, be tightened locking piece 423, realize to the height on vertical direction
Position is positioned, and is so far adjusted and is finished, and subsequent operation is carried out.It carries out by adjusting the focal length of camera 43 apart from adjusting, thus
It is further ensured that the accuracy for the image that image acquisition mechanism collects, eliminates influence of the blurred picture to testing result.
As shown in Fig. 2, above-mentioned image acquisition mechanism further includes vertically slidably being arranged in the first fixed plate 41
The lower part of the first fixed plate 41 is arranged in concentrator marker 424, concentrator marker 424, positioned at the lower section of camera 43, and 424 He of concentrator marker
Camera 43 is located at the ipsilateral of the first fixed plate 41, and the two is arranged close to, when concentrator marker 424 is used to detect that profile is improper,
Preset mark is marked on the Surface of profile.The setting of concentrator marker 424, convenient for users to all detection is completed in all profiles
Afterwards, choose underproof profile in detection process, to be distinguished to underproof profile and qualified profile, be further ensured that
The accuracy of vision-based detection result;Or when detecting the surface qualification of profile, identified on label, to distinguish the qualification of profile
Whether.
The detection process of product appearance detection system is in the present embodiment:
Firstly, profile to be measured is placed on to the underface of camera 43, so that profile to be measured is imaged on the center of image,
Then, by adjusting the focal length of image acquisition mechanism adjustment camera 43, guarantee image definition, finally, driving motor is by first
The side of bracket 1 is moved towards the other side, while being shot to profile to be measured towards upper surface, and the outer of product is so far completed
See detection.
Product appearance detection system provided in this embodiment, for longer profile take pictures detect when, image is adopted
Collecting mechanism slides setting by sliding block 3 and track 2 in first support 1, thus in profile vision inspection process, profile to be measured
Axis and pre-set first support 1 axis direction fixation be arranged in parallel, at this point, eliminate in the prior art it is artificial because
Influence of the element to shooting effect, the image for the profile to be measured that detection system is shot will all be imaged on default center position
It sets, ensure that the pattern integrity that shooting obtains, while improving the precision of testing result.
Embodiment 2
The present embodiment provides a kind of product appearance detection systems, with the product appearance detection system provided in embodiment 1
It compares, is in place of existing difference:
As shown in figure 4, image acquisition mechanism further includes the area source mounting plate 45 being fixedly connected with the first fixed plate 41, face
Surface of the light source mounting plate 45 under is provided with area source 44, and area source mounting plate 45 is parallel to the horizontal plane or tilts and sets
It sets.In vision inspection process, further takes pictures for camera 43 in imaging of the big visual field system and sufficient light source is provided.And guarantee inspection
The precision of imaging of the big visual field result during survey.
Embodiment 3
The present embodiment provides the product appearances provided in a kind of product appearance detection system, with embodiment 1 or embodiment 2
Detection system is compared, and is in place of existing difference:
As shown in figure 5, the deformation of position is arranged as concentrator marker 424, and concentrator marker 424 and camera 43 are located at first and consolidate
The two sides of fixed board 41, concentrator marker 424 on the Surface of profile for marking preset mark when detecting that profile is improper.
The setting of number as concentrator marker 424, concentrator marker 424 can be set two, three, four etc., as long as protecting
Card carries out mark to profile.
Embodiment 4
The present embodiment provides a kind of product appearance detection systems, mention with embodiment 1 to any of embodiment 3 embodiment
The product appearance detection system of confession is compared, and is in place of existing difference:
Image acquisition mechanism no setting is required the first adjusting block 4211, the second adjusting block 4212 directly passes through the vertical side of setting
The sliding cylinder moved up drives camera 43 to focus, as long as guaranteeing image acquisition mechanism by sliding block 3 at first
It is slided on frame 1, and the photograph image that the output of camera 43 obtains is clear.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among still in the protection scope of innovation and creation.