CN105021612A - Double-sided detection equipment for circuit board - Google Patents
Double-sided detection equipment for circuit board Download PDFInfo
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- CN105021612A CN105021612A CN201410168645.6A CN201410168645A CN105021612A CN 105021612 A CN105021612 A CN 105021612A CN 201410168645 A CN201410168645 A CN 201410168645A CN 105021612 A CN105021612 A CN 105021612A
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- circuit board
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- body frame
- optical imaging
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Abstract
The invention is applied to the technical field of circuit board detection equipment, provides double-sided detection equipment for a circuit board, and aims at solving the problems in the prior art that the double-sided detection for the circuit board cannot be realized, and the distance between an optical imaging system and the circuit board cannot be regulated according to the different thicknesses of circuit boards. The double-sided detection equipment for the circuit board comprises a main body framework and optical imaging systems, wherein the optical imaging systems comprise a first optical imaging system and a second optical imaging system which can be used for simultaneously detecting the front side and the back side of the circuit board; the double-sided detection equipment for the circuit board also comprises a first distance regulating mechanism and a second distance regulating mechanism. The first optical imaging system and the second optical imaging system are utilized to simultaneously detect the front side and the back side of the circuit board, so that the detection efficiency is improved; the distance between a first image pick-up device and the circuit board is regulated by using a first regulating component, and the distance between a second image pick-up device and the circuit board is regulated by using a second regulating component, so that the imaging quality is improved.
Description
Technical field
The invention belongs to circuit board detecting equipment technical field, particularly relate to a kind of circuit board double-side detection equipment.
Background technology
Along with the development of technology, on printed circuit board (PCB), electronics component size is more and more less, circuit more and more carefully, more and more closeer, detect by traditional artificial visual and can not meet the requirement of batch production, therefore, the wiring board checkout equipment that printed circuit board (PCB) carries out Aulomatizeted Detect is arisen at the historic moment.
As shown in Figure 1, traditional wiring board checkout equipment (is called X-axis) by being arranged on crossbeam D by optical imaging system A, optical imaging system A is moved left and right on crossbeam D, and illuminator B is fixed on above vacuum absorbing platform E, also can be connected in X-axis, move left and right with optical imaging system A, circuit board C is placed on vacuum absorbing platform E.Vacuum absorbing platform E can move forward and backward, and circuit board C is smoothly passed under the visual field of optical imaging system A.By moving left and right of optical imaging system A and moving forward and backward of vacuum absorbing platform E, carry out optical imaging system A to circuit board C all images collecting work.Then, the view data that optical imaging system A collects can be sent on computer, carrys out further analyzing and processing by computer.Namely the image acquisition to circuit board C is realized by the motion of optical imaging system A and vacuum absorbing platform E, its outstanding shortcoming is: the to-and-fro movement of optical imaging system A and vacuum absorbing platform E, make kinetic control system complicated, failure rate is high, for the circuit board of different-thickness, and due to the focal length problem of optical imaging system, when carrying out image acquisition to circuit board, and the distance between optical imaging system A and circuit board C cannot be regulated to obtain image information.
Summary of the invention
The object of the present invention is to provide a kind of circuit board double-side detection equipment, be intended to solve in prior art and cannot carry out two-sided detection to circuit board and the problem that cannot regulate the spacing of optical imaging system and circuit board according to the different-thickness of circuit board simultaneously.
The present invention realizes like this, a kind of circuit board double-side detection equipment, comprise main body frame and be arranged in described main body frame with the optical imaging system of the information of collecting circuit board, described main body frame comprises the worktable placing described circuit board, described optical imaging system comprises and is arranged at described worktable respectively relative to both sides to detect double-edged first optical imaging system of described circuit board and the second optical imaging system simultaneously, described first optical imaging system to comprise with described circuit board vertically disposed first camera head and is arranged in described main body frame for the first fixed head fixedly mounting described first camera head, described second optical imaging system to comprise with described circuit board vertically disposed second camera head and is arranged in described main body frame for the second fixed head fixedly mounting described second camera head, described circuit board double-side detection equipment also comprises the second distance governor motion of the spacing regulating the first distance adjusting mechanism of the spacing of described first optical imaging system and described circuit board and regulate described second optical imaging system and described circuit board, described first distance adjusting mechanism comprises with the first supporting member of the facing setting of described first fixed head and to be fixedly installed on described main body frame and to drive described first supporting member to move the first adjusting part of the spacing regulating described first camera head and described circuit board, described second distance governor motion comprises with the second supporting member of the facing setting of described second fixed head and to be fixedly installed on described main body frame and to drive described second supporting member to move the second adjusting part of the spacing regulating described second camera head and described circuit board.
Further, described main body frame is provided with for the first mobile space of described first fixed head movement with for the second mobile space of described second fixed head movement, and comprises and be arranged at the transport sector of described worktable for transmission circuit plate.
Further, described first optical imaging system also comprises and being fixedly installed on described main body frame and the first light source assembly between described first fixed head and described worktable, described second optical imaging system comprises and being fixedly installed on described main body frame and secondary light source assembly between described second fixed head and described worktable, described first light source assembly is with described first camera head just right between described worktable and described first camera head, described secondary light source assembly is with described second camera head just right between described worktable and described second camera head.
Further, described first light source assembly and the projection of described secondary light source assembly on described worktable are staggered mutually.
Further, described first supporting member comprise be fixedly connected with described first fixed head first support block and support along described first the first adjusting screw(rod) that block extends towards described first adjusting part side, described first adjusting part regulates described first adjusting screw(rod) to move relative to described main body frame and drive described first to support block to move around with relative described first mobile space of described first fixed head; Described second supporting member comprise be fixedly connected with described second fixed head second support block and support along described second the second adjusting screw(rod) that block extends towards described second adjusting part side, described second adjusting part regulates described second adjusting screw(rod) to move relative to described main body frame and drive described second to support block to move around with relative described second mobile space of described second fixed head.
Further, described first adjusting part comprises and drives described first adjusting screw(rod) relative to the first worm and gear group of described main body frame movement, and described first worm and gear group comprises the first turbine be rotationally connected with described first adjusting screw(rod), the first driving shaft driving the first worm screw of described first turbine rotation, fixedly mount described first turbine and first holder of described first worm screw and be fixedly connected with described first worm screw; Described second adjusting part comprises and drives described second adjusting screw(rod) relative to the second worm and gear group of described main body frame movement, and described second worm and gear group comprises the second turbine be rotationally connected with described second adjusting screw(rod), the second driving shaft driving the second worm screw of described second turbine rotation, fixedly mount described second turbine and second holder of described second worm screw and be fixedly connected with described second worm screw.
Further, described first adjusting part also comprise be connected to described first driving shaft one end and drive described first drive shaft turns the first drive motor or first rotate handwheel; Described second adjusting part also comprise be connected to described second driving shaft one end and drive described second drive shaft turns the second drive motor or second rotate handwheel.
Further, described first adjusting part also comprises the first sliding seat be fixedly installed on described main body frame, and described first sliding seat of gig to be supported between block and described first worm and gear group in described first and to be provided with the first sliding eye passed for described first adjusting screw(rod); Described second adjusting part also comprises the second sliding seat be fixedly installed on described main body frame, and described second sliding seat of gig to be supported between block and described second worm and gear group in described second and to be provided with the second sliding eye passed for described second adjusting screw(rod).
Further, described first supporting member also comprises the first reference column being positioned at described first adjusting screw(rod) both sides, and described first sliding seat is provided with and is positioned at described first sliding eye both sides with the first pilot hole coordinated with described first reference column; Described second supporting member also comprises the second reference column being positioned at described second adjusting screw(rod) both sides, and described second sliding seat is provided with and is positioned at described second sliding eye both sides with the second pilot hole coordinated with described second reference column.
Further, described first adjusting part also comprises and is fixedly installed in the first holder on described main body frame and rotates to drive described first adjusting screw(rod) relative to the first setting nut of described main body frame movement relative to described first holder, and described first setting nut is threaded with described first adjusting screw(rod); Described second adjusting part also comprises and is fixedly installed in the second holder on described main body frame and rotates to drive described second adjusting screw(rod) relative to the second setting nut of described main body frame movement relative to described second holder, and described second setting nut is threaded with described second adjusting screw(rod).
The present invention relative to the technique effect of prior art is: utilize described first optical imaging system and described second optical imaging system to detect the tow sides of described circuit board simultaneously, improve detection efficiency, also avoid causing the damage to circuit board because of artificial reverse circuit plate.Different according to the thickness of circuit board, to move with described first supporting member by being fixedly connected with the first supporting member with described first fixed head to make described first camera head and mobile, and utilize the distance between the first adjusting part described first optical imaging system of adjustment and described circuit board, similarly, to move with described second supporting member by being fixedly connected with the second supporting member with described second fixed head to make described second camera head and mobile, and utilize the distance between the second adjusting part described second optical imaging system of adjustment and described circuit board, avoid adopting complicated control system to regulate the position between described circuit board and the first optical imaging system and the position between described circuit board and the second optical imaging system, make the focal length of the first optical imaging system and the second optical imaging system to optimum condition, to improve image quality.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the wiring board checkout equipment that prior art provides;
Fig. 2 is the stereographic map of the circuit board double-side detection equipment that the embodiment of the present invention provides;
Fig. 3 is the side view of circuit board double-side detection equipment in Fig. 2;
Fig. 4 is the stereographic map of a kind of first distance adjusting mechanism or second distance governor motion in Fig. 2;
Fig. 5 is the exploded view of the first distance adjusting mechanism or second distance governor motion in Fig. 4;
Fig. 6 is the stereographic map of another kind of distance adjusting mechanism in Fig. 2;
Fig. 7 is the side view of circuit board double-side detection equipment in Fig. 2;
Fig. 8 is the side view of circuit board double-side detection equipment in Fig. 2;
Fig. 9 is the structural representation of optical imaging system in Fig. 2;
Figure 10 is the installation diagram of the position adjustments assembly in the circuit board double-side detection equipment that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 2 and Fig. 3, the circuit board double-side detection equipment that the embodiment of the present invention provides comprises main body frame 1 and is arranged at the optical imaging system 2 of the information of collecting circuit board 100 in described main body frame 1, and described main body frame 1 comprises the worktable 17 placing described circuit board 100.Described optical imaging system 2 comprise be arranged at respectively described worktable 17 relatively both sides to detect double-edged first optical imaging system 22 and the second optical imaging system 23 of described circuit board 100 simultaneously, described first optical imaging system 22 to comprise with described circuit board 100 vertically disposed first camera head 20 and is arranged in described main body frame 1 for the first fixed head 21 fixedly mounting described first camera head 20, described second optical imaging system 23 to comprise with described circuit board 100 vertically disposed second camera head 24 and is arranged in described main body frame 1 for the second fixed head 25 fixedly mounting described second camera head 24, described circuit board double-side detection equipment also comprises the second distance governor motion 4 of the spacing regulating the first distance adjusting mechanism 3 of the spacing of described first optical imaging system 22 and described circuit board 100 and regulate described second optical imaging system 23 and described circuit board 100, described first distance adjusting mechanism 3 comprises with the first supporting member 30 of the facing setting of described first fixed head 21 and to be fixedly installed on described main body frame 1 and to drive described first supporting member 30 to move to regulate the first adjusting part 31 of described first camera head 20 and the spacing of described circuit board 100, described second distance governor motion 4 comprises with the second supporting member 40 of the facing setting of described second fixed head 25 and to be fixedly installed on described main body frame 1 and to drive described second supporting member 40 to move to regulate the second adjusting part 41 of described second camera head 24 and the spacing of described circuit board 100.Utilize described first optical imaging system 22 and described second optical imaging system 23 to detect the tow sides of described circuit board 100 simultaneously, improve detection efficiency, also avoid causing the damage to circuit board 100 because of artificial reverse circuit plate 100.Different according to the thickness of circuit board 100, to move with described first supporting member 30 by being fixedly connected with the first supporting member 30 with described first fixed head 21 to make described first camera head 20 and mobile, and utilize the first adjusting part 31 to regulate distance between described first optical imaging system 22 and described circuit board 100, similarly, to move with described second supporting member 40 by being fixedly connected with the second supporting member 40 with described second fixed head 25 to make described second camera head 24 and mobile, and utilize the second adjusting part 41 to regulate distance between described second optical imaging system 23 and described circuit board 100, avoid adopting complicated control system to regulate the position between described circuit board 100 and the first optical imaging system 22 and the position between described circuit board 100 and the second optical imaging system 23, the focal length of the first optical imaging system 22 and the second optical imaging system 23 is made to be adjusted to optimum condition, to improve image quality.
In this embodiment, the first camera head 20 and the second camera head 24 is utilized to gather the surperficial image information of described circuit board 100 liang respectively, detect circuit board 100, this Detection of content comprises inclined and residual copper in outward appearance breakage to circuit board 100, short circuit, open circuit, live width, line-spacing, breach, hole etc. simultaneously.
In this embodiment, described circuit board 100 horizontal positioned, described first optical imaging system 22 and described second optical imaging system 23 are arranged at above and below described circuit board 100 respectively, the distance of described first optical imaging system 22 and described circuit board 100 is the vertical range between the first camera head 20 to circuit board 100, the distance of described second optical imaging system 23 and described circuit board 100 is the vertical range between the second camera head 24 to circuit board 100, can be detected by this arrangement to the circuit board 100 of horizontal positioned.Certainly, described circuit board 100 is vertically placed, described first optical imaging system 22 and described second optical imaging system 23 are respectively just to two test surfaces of described circuit board 100 and perpendicular to this test surfaces, now, distance between described first optical imaging system 22 and described circuit board 100 is the horizontal range between the first camera head 20 and the test surfaces of circuit board 100, distance between described second optical imaging system 23 and described circuit board 100 is the horizontal range between the second camera head 24 and the test surfaces of circuit board 100, the circuit board 100 vertically placed can be detected by this arrangement.In other embodiments, described circuit board 100 can slant setting, namely form an angle with surface level shape, then the first optical imaging system 22 is all vertical with circuit board 100 with described second optical imaging system 23, now, described first optical imaging system 22 and the distance between the second optical imaging system 23 and described circuit board 100 be respectively described first camera head 20 and described second camera head 24 and its project on described circuit board 100 between distance.
Please refer to Fig. 3, in this embodiment, the quantity of described first camera head 20 and described second camera head 24 is at least one.When the quantity of described first camera head 20 and described second camera head 24 is two or more, described first camera head 20 is equidistantly fixedly installed on described first fixed head 21, described second camera head 24 is equidistantly fixedly installed on described second fixed head 25, and described first camera head 20 is arranged along the Width of described circuit board 100, the Width of described circuit board 100 is vertical with the working direction of described circuit board 100.The concrete quantity of described first camera head 20 and described second camera head 24 according to the width of described circuit board 100 and each camera head 20 can pickup area diameter and determine, such as, when the area of circuit board 100 is less, namely being less than or equal to single camera head 20 can the diameter of pickup area, then can only fixedly mount first camera head 20 on the first fixed head 21 and fixed installation second camera head 24 on the second fixed head 25 to detect described circuit board 100 simultaneously; When the area of circuit board 100 be greater than single camera head 20 can the diameter of pickup area time, need the first camera head 20 and the second camera head 24 that two or more is set, specifically depending on actual demand.The region of described circuit board 100 Width is covered by arranging at least one first camera head 20 and the second camera head 24, and without the need to by moving left and right the first camera head 20 and/or the second camera head 24 to carry out image acquisition to the Width of circuit board 100, thus do not need to design complicated kinetic control system, its structure is simple, and is conducive to reducing failure rate.
Please refer to Fig. 2 to Fig. 4, Figure 10, further, described main body frame 1 is provided with for the first mobile space 10 of described first fixed head 21 movement with for the second mobile space 18 of described second fixed head 25 movement, and comprises and be arranged at the conveying mechanism 5 of described worktable 17 for transmission circuit plate 100.By arranging the first mobile space 10 slided for described first optical imaging system 22 and the second mobile space 18 slided for described second optical imaging system 23 at described main body frame 1, structure is simple, and described first mobile space 10 and described second mobile space 18 can be the sliding eye be arranged on described main body frame 1 or the sliding tray (not shown) be formed on described main body frame 1.When this first mobile space 10 and the second mobile space 18 are sliding eye, described main body frame 1 is formed with accommodating described first optical imaging system 22 and the first accommodating cavity 12 of the second optical imaging system 23 and the second accommodating cavity 13 of accommodating described first distance adjusting mechanism 3 and described second distance governor motion 4, be provided with stationary barrier 14 between described first accommodating cavity 12 and described second accommodating cavity 13, and described sliding eye is arranged at this stationary barrier 14; Described first fixed head 21 comprises the first fixed part 210 for fixing the first camera head 20 and is connected with described first fixed part 210 and passes the first connecting portion 212 that described sliding eye is positioned at described second accommodating cavity 13, and described first connecting portion 212 coordinates with described first supporting member 30 to drive described first fixed head 21 and described first camera head 20 to move in described sliding eye; Described second fixed head 25 comprises the second fixed part 250 for fixing the second camera head 24 and is connected with described second fixed part 250 and passes the second connecting portion 252 that described sliding eye is positioned at described second accommodating cavity 13, described second connecting portion 252 coordinates with described second supporting member 40 to drive described second fixed head 25 and described second camera head 24 to move in described sliding eye, thus plays the object of the spacing regulating described first camera head 20 and described second camera head 24 and described circuit board 100.In use, the first distance adjusting mechanism 3 and described second distance governor motion 4 can be regulated separately, or regulate the first distance adjusting mechanism 3 and described second distance governor motion 4 simultaneously, easy to use.When described first mobile space 10 and the second mobile space 18 are sliding tray, described first optical imaging system 22 and described first distance adjusting mechanism 3 are placed in the accommodation space of described main body frame 1 formation jointly, and described first distance adjusting mechanism 3 is positioned at the side of described first camera head 20, by at least one end accommodation of the first fixed head 21 in described sliding tray, and hold described first fixed head 21 near the side of described sliding tray by the first supporting member 30, described first fixed head 21 and described first camera head 20 is driven to move along described sliding tray, play the object of the spacing regulating described first camera head 20 and described circuit board 100 equally, described second optical imaging system 23 and described second distance governor motion 4 are placed in the first accommodating cavity 12 of described main body frame 1 formation jointly, and described second distance governor motion 4 is positioned at the side of described second camera head 24, by at least one end accommodation of the second fixed head 25 in described sliding tray, and hold described second fixed head 25 near the side of described sliding tray by the second supporting member 40, described second fixed head 25 and described second camera head 24 is driven to move along described sliding tray, play the object of the spacing regulating described second camera head 24 and described circuit board 100 equally.In other embodiments, described first mobile space 10 can be sliding eye, and described second mobile space 18 is sliding tray; Or described first mobile space 10 is sliding tray, described second mobile space 18 is sliding eye, and concrete structure is identical with the structure of foregoing description, does not repeat herein.Described conveying mechanism 5 is for transferring to the image acquisition region of the first camera head 20 and described second camera head 24 from a upper procedure position by described circuit board 100, this image acquisition region is worktable 17 region, and the circuit board 100 after detecting is sent to subsequent processing position, realizing circuit plate 100 automatically enter in this circuit board double-side detection equipment, and automatically from this circuit board double-side detection equipment, be sent to subsequent processing position, thus realize automatic charging and the blanking of described circuit board 100, improve work efficiency.
Please refer to Fig. 3 and Fig. 9, in this embodiment, described first optical imaging system 22 also comprises and being fixedly installed on described main body frame 1 and the first light source assembly 26 between described first fixed head 21 and described worktable 17, described second optical imaging system 23 comprises and being fixedly installed on described main body frame 1 and secondary light source assembly 27 between described second fixed head 25 and described worktable 17, described first light source assembly 26 is with described first camera head 20 just right between described worktable 17 and described first camera head 20, described secondary light source assembly 27 is with described second camera head 24 just right between described worktable 17 and described second camera head 24.Utilize the first light source assembly 26 and described secondary light source assembly 27 to increase brightness and improve the image acquisition effect of described first camera head 20 and described second camera head 24.On the transmission path of described circuit board 100, between described first fixed head 21 and described conveying mechanism 5, first light source assembly 26 is set, between described second fixed head 25 and described conveying mechanism 5, secondary light source assembly 27 is set.
Please refer to Fig. 9, wherein, the first light source assembly 26 comprises the first light source 260 and the first light path box 262, and described secondary light source assembly 27 comprises secondary light source 270 and the second light path box 272; Described in described first light path box 262, the second light path box 272 is arranged at the both sides of described conveying mechanism 5 respectively, described first light source 260 and described first camera head 20 are arranged at described first light path box 262 both sides respectively, and described secondary light source 270 and described second camera head 24 are arranged at described second light path box 272 both sides respectively.Described first light source 260 is consistent with the arragement direction of described first camera head 20 with the installation direction of described first light path box 262, and perpendicular to the transmission direction of described circuit board 100, described secondary light source 270 is consistent with the arragement direction of described second camera head 24 with the installation direction of described second light path box 272, and perpendicular to the transmission direction of described circuit board 100.Preferably, described first light path box 262 and described second light path box 272 are reflection and transmission element, described first camera head 20 is arranged at the transmission plane side of described first light path box 262, and described first light source 260 is arranged at the reflecting surface side of described first light path box 262; Described second camera head 24 is arranged at the transmission plane side of described second light path box 272, and described secondary light source 270 is arranged at the reflecting surface side of described second light path box 272,
Please refer to Fig. 9, in this embodiment, described first light source assembly 26 staggers mutually with the projection of described secondary light source assembly 27 on described worktable 17.Described first light source assembly 26 also comprises the first shadow shield 264, described secondary light source assembly 27 also comprises the second shadow shield 274, described first shadow shield 264 is arranged between the first light path box 262 and conveying mechanism 5, described second shadow shield 274 is arranged between described second light path box 272 and described conveying mechanism 5, the installation direction of described first shadow shield 264 is consistent with the arragement direction of above-mentioned first camera head 20, and the installation direction of described second shadow shield 274 is consistent with the arragement direction of described second camera head 24.For the circuit board 100 of thinner thickness, by setting that the first light source assembly 26 and secondary light source assembly 27 are staggered, especially by setting that the first light path box 262 and the second light path box 272 are staggered, influence each other in light path with the light preventing the first light source 260 and secondary light source 270 from producing, to improve image quality.And adopt the first shadow shield 264 and the second shadow shield 274, make the imaging point of the first light source 260 on described second shadow shield 274 and the imaging point of secondary light source 270 on the first shadow shield 264, the optics that also can prevent the first light source 260 and secondary light source 270 from producing influences each other in light path, and then is conducive to improving image quality.Wherein, described first light source 260 and described secondary light source 270 can be LED lamp bar and/or incandescent lamp etc.
Please refer to Fig. 3 to Fig. 6, further, described first supporting member 30 comprise be fixedly connected with described first fixed head 21 first support block 301 and support along described first the first adjusting screw(rod) 302 that block 301 extends towards described first adjusting part 31 side, described first adjusting part 31 regulates described first adjusting screw(rod) 302 to move relative to described main body frame 1 and drive described first to support block 301 to move around with relative described first mobile space 10 of described first fixed head 21; Described second supporting member 40 comprise be fixedly connected with described second fixed head 25 second support block 401 and support along described second the second adjusting screw(rod) 402 that block 401 extends towards described second adjusting part 41 side, described second adjusting part 41 regulates described second adjusting screw(rod) 402 to move relative to described main body frame 1 and drive described second to support block 401 to move around with relative described second mobile space 18 of described second fixed head 25.Understandably, described first fixed head 21 and described first is supported block 301 and is fixed together by mode with bolts, move to make described first optical imaging system 22 support the movement of block 301 with first, described second fixed head 25 and described second is supported block 401 and is fixed together by mode with bolts, moves to make described second optical imaging system 23 support the movement of block 401 with second; Utilizing the first adjusting part 31 and the first adjusting screw(rod) 302 to coordinate drives described first adjusting screw(rod) 302 to move relative to described main body frame 1, thus drive the first optical imaging system 22 mobile in described first mobile space 10, and then the distance between tune first segment camera head 20 and circuit board 100, to improve the image quality of the first camera head 20; Similarly, utilizing the second adjusting part 41 and the second adjusting screw(rod) 402 to coordinate drives described second adjusting screw(rod) 402 to move relative to described main body frame 1, thus drive the second optical imaging system 23 mobile in described second mobile space 18, and then the distance between tune second section camera head 20 and circuit board 100, to improve the image quality of the second camera head 24.In addition, only needing by regulating the first adjusting part 31 can realize the adjustment of the spacing of the first camera head 20 opposing circuit board 100 and regulate the second adjusting part 41 can realize the adjustment of the spacing to the second camera head 24 opposing circuit board 100, avoiding adopting complicated control system to regulate position between described circuit board 100 and the first optical imaging system 22 and position between described circuit board 100 and the second optical imaging system 23.
Please refer to Fig. 2 to Fig. 5, in this embodiment, described first adjusting part 31 comprises and drives described first adjusting screw(rod) 302 relative to the first worm and gear group 32 of described main body frame 1 movement, and described first worm and gear group 32 comprises the first worm gear 320 be rotationally connected with described first adjusting screw(rod) 302, the first worm screw 321 driving described first worm gear 320 to rotate, the first driving shaft 323 of fixedly mounting described first worm gear 320 and first holder 322 of described first worm screw 321 and being fixedly connected with described first worm screw 321; Described second adjusting part 41 comprises and drives described second adjusting screw(rod) 402 relative to the second worm and gear group 42 of described main body frame 1 movement, and described second worm and gear group 42 comprises the second worm gear 420 be rotationally connected with described second adjusting screw(rod) 402, the second worm screw 421 driving described second worm gear 420 to rotate, the second driving shaft 423 of fixedly mounting described second worm gear 420 and second holder 422 of described second worm screw 421 and being fixedly connected with described second worm screw 421.Understandably, described first holder 322 is fixedly installed on main body frame 1, preferably, described main body frame 1 is provided with first loading plate 15 parallel with described first fixed head 21, described first holder 322 is fixedly installed on described first loading plate 15, and the mode that can be bolted realizes.The axis of the axis of described first worm gear 320 and the axis of described first adjusting screw(rod) 302 and described first camera head 20 is parallel to each other, the axis of described first worm screw 321 is identical with the axis of described first driving shaft 323, and mutually vertical with the axis of described first worm gear 320, and be parallel to each other with the working direction of described circuit board 100; The axis of the axis of described second worm gear 420 and the axis of described second adjusting screw(rod) 402 and described second camera head 24 is parallel to each other, the axis of described second worm screw 421 is identical with the axis of described second driving shaft 423, and mutually vertical with the axis of described second worm gear 420, and be parallel to each other with the working direction of described circuit board 100.In use, described first driving shaft 323 drives described first worm screw 321 to rotate when rotating, coordinate to drive described first worm gear 320 to rotate by described first worm gear 320 and described first worm screw 321, and then drive the first adjusting screw(rod) 302 to move vertically relative to described first worm gear 320, thus make first to support block 301 to drive the first fixed head 21 and the first camera head 20 to move a certain distance relative to circuit board 100, the first worm and gear group 32 is utilized to regulate described adjusting screw(rod) 302 to move relative to the first loading plate 15, and then the distance between adjustment the first camera head 20 and circuit board 100.Similarly, adopt the distance regulated in a like fashion between described second camera head 24 and described circuit board 100, do not repeat, and this distance can regulate according to actual needs herein.This structure is simple, easy to use.
Please refer to Fig. 2 and Fig. 5, in this embodiment, described first adjusting screw(rod) 302 and described second adjusting screw(rod) 402 comprise respectively establishes threaded first spiro rod section 3020 and the second spiro rod section 4020, described first worm gear 320 and described second worm gear 420 are respectively equipped with the worm wheel aperture (sign) coordinated with described first spiro rod section 3020 and the second spiro rod section 4020, and the inwall of described worm wheel aperture is provided with the threaded portion with the threaded engagement of described first spiro rod section 3020 and the second spiro rod section 4020.Utilize the thread connecting mode of the thread connecting mode of the first adjusting screw(rod) 302 and worm wheel aperture and described second adjusting screw(rod) 402 and corresponding worm wheel aperture, when described first worm gear 320 and the second worm gear 420 rotate, the first spiro rod section 3020 of described first adjusting screw(rod) 302 and described second adjusting screw(rod) 402 and the second spiro rod section 4020 is made to screw in corresponding described worm wheel aperture respectively, described first camera head 20 and the distance between described second camera head 24 and described circuit board 100 to be turned down; Also the first spiro rod section 3020 of described first adjusting screw(rod) 302 and described second adjusting screw(rod) 402 and the second spiro rod section 4020 can be made to screw out in the described worm wheel aperture of correspondence respectively, to tune up described first camera head 20 and the distance between described second camera head 24 and described circuit board 100.Namely by rotating and reverse rotation axis to regulate the size of the spacing of described first camera head 20 and described second camera head 24 and described circuit board 100.
Please refer to Fig. 3 to Fig. 7, in this embodiment, described first adjusting part 31 also comprises and is connected to described first driving shaft 323 one end and the first drive motor 33 or first driving described first driving shaft 323 to rotate rotates handwheel 34; Described second adjusting part 41 also comprises and is connected to described second driving shaft 423 one end and the second drive motor 43 or second driving described second driving shaft 423 to rotate rotates handwheel 44.Understandably, the first drive motor 33 is utilized to drive the first driving shaft 323 to rotate, to realize the automatic regulation function of this first distance adjusting mechanism 3, similarly, the second drive motor 43 is utilized to drive the second driving shaft 423 to rotate, to realize the automatic regulation function of this second distance governor motion 4.Particularly, for the circuit board 100 of different-thickness, due to the focal length problem of the first optical imaging system 22 and the second optical imaging system 23, when carrying out image acquisition to circuit board 100, need adjustment first optical imaging system 22 and the distance between the second optical imaging system 23 and circuit board 100.During use, the first drive motor 33 is utilized to drive described first driving shaft 323 to rotate, first driving shaft 323 drives the first worm screw 321 to rotate, first worm screw 321 drives the first worm gear 320 be fixed on main body frame 1 to rotate, due to the worm wheel aperture of the first worm gear 320 with the first adjusting screw(rod) 302 for being threaded, first worm gear 320 rotates drive first adjusting screw(rod) 302 and slides up and down along described worm wheel aperture, and utilize sliding up and down of the first adjusting screw(rod) 302 to drive the first camera head 20 be installed on the first fixed head 21 to move around along the first mobile space 10, thus regulate the distance between the first camera head 20 and circuit board 100, similarly, the second drive motor 43 is utilized to drive described second driving shaft 423 to rotate, second driving shaft 423 drives the second worm screw 421 to rotate, second worm screw 421 drives the second worm gear 420 be fixed on main body frame 1 to rotate, due to the worm wheel aperture of the second worm gear 420 with the second adjusting screw(rod) 402 for being threaded, second worm gear 420 rotates drive second adjusting screw(rod) 402 and slides up and down along described worm wheel aperture, and utilize sliding up and down of the second adjusting screw(rod) 402 to drive the second camera head 24 be installed on the second fixed head 25 to move around along the second mobile space 18, thus regulate the distance between the second camera head 24 and circuit board 100, by above-mentioned adjustment process, the focal length of described first camera head 20 and described second camera head 24 is made to be suitable for the circuit board 100 of different-thickness respectively.
Please refer to Fig. 3 and Figure 10, in this embodiment, described circuit board detecting equipment also comprises being fixedly installed on described main body frame 1 and is delivered to and carrys out plate inductive means 61 to detect described circuit board 100 in described main body frame 1, utilize plate inductive means 61 sensing circuit plate 100 whether to be about to the information acquisition region entering described camera head 20, when sense be about to circuit board 100 pass through time, this carrys out plate inductive means 61 and the plate information of coming sensed is sent to control center, control center carrys out plate information to optical imaging system 2 to prepare to enter duty to what receive.Preferably, describedly position transducer etc. is provided with in plate inductive means 61.
Described circuit board detecting equipment also comprises the position adjustments assembly 6 being arranged at described main body frame 1, and described position adjustments assembly 6 comprises the fixing pinch roller 62 be fixedly installed on described main body frame 1, the adjustment member 63 that is oppositely arranged with described fixing pinch roller 62 and being fixed on described main body frame 1 to regulate the location sensitive part 64 of shown camera head 20 and the spacing of described circuit board 100; Described adjustment member 63 comprises the adjustment pinch roller 65 that is oppositely arranged with described fixing pinch roller 62 and one end is fixed on described adjustment pinch roller 65 and the other end is slidably connected to the sliding axle 66 of described location sensitive part 64, and described adjustment pinch roller 65 and described fixing pinch roller 62 form the passage that the described circuit board 100 of confession passes through.Understandably, for the circuit board 100 of different-thickness, utilize position adjustments assembly 6 to regulate described first camera head 20 and the distance between the second camera head 24 and circuit board 100, particularly, when described circuit board 100 enters in the passage between described adjustment pinch roller 65 and fixing pinch roller 62, regulate pinch roller 65 can be forced to rising certain altitude, this is highly the thickness of circuit board 100, pinch roller 65 is regulated to drive sliding axle 66 to slide certain distance, this distance is the thickness of circuit board 100, now, location sensitive part 64 senses the thickness size of circuit board 100.The thickness size of the circuit board 100 passed through is waited by location sensitive part 64 perception, the thickness size of circuit board 100 is sent to control center by this location sensitive part 64, the information of control center to the circuit board 100 thickness size received processes, and send instruction to the second drive motor 43 of the first drive motor 33 of the first adjusting part 31 and the second adjusting part 41, described first drive motor 33 drives the first driving shaft 323 to rotate according to the instruction received and described second drive motor 43 drives the second driving shaft 423 to rotate according to the instruction received, move to drive the first supporting member 30 and the second supporting member 40 opposing body framework 1, and drive the first camera head 20 and described second camera head 24 to move relative to circuit board 100, to reach the best focus position of described first camera head 20 and described second camera head 24, improve image acquisition sharpness.
Please refer to Fig. 3 and Fig. 7, in embodiments of the present invention, also the first rotation handwheel 34 can be utilized to replace described first drive motor 33, rotating handwheel 34 by first is installed on the first driving shaft 323, handwheel 34 is rotated, to realize the first distance adjusting mechanism 3 described in manual adjustments by rotating described first; Similarly, the second rotation handwheel 44 also can being utilized to replace described second drive motor 43, rotate handwheel 44 by second and be installed on the second driving shaft 423, rotating handwheel 44, to realize second distance governor motion 4 described in manual adjustments by rotating described second; Specific works process is similar with the mode that the second drive motor 43 carries out driving to employing the first drive motor 33, does not repeat herein.
Please refer to Fig. 3 and Fig. 7, in this embodiment, described first driving shaft 323 is connected to described in a pair and also drives the first worm screw 321 described in two to rotate between first worm screw 321 simultaneously, and described second driving shaft 423 is connected to described in a pair and also drives the second worm screw 421 described in two to rotate between second worm screw 421 simultaneously.Preferably, mutually isostructural first distance adjusting mechanism 3 has all been installed in the both sides of the first optical imaging system 22, and between two first distance adjusting mechanisms 3, connect two the first worm screws 321 by first driving shaft 323 simultaneously, therefore, when driving described first driving shaft 323 to rotate, drive the first worm screw 321 of both sides to rotate simultaneously, thus the first adjusting screw(rod) 302 realizing both sides does synchronizing moving, only on the first driving shaft 323 of side, first drive motor 33 need be installed, the synchronizing moving of both sides first adjusting screw(rod) 302 can be realized, to regulate the distance between the first camera head 20 and circuit board 100 simultaneously, similarly, in the both sides of the second optical imaging system 23, mutually isostructural second distance governor motion 4 is all installed, and between two second distance governor motions 4, connect two the second worm screws 421 by second driving shaft 423 simultaneously, therefore, when driving described second driving shaft 423 to rotate, drive the second worm screw 421 of both sides to rotate simultaneously, thus the second adjusting screw(rod) 402 realizing both sides does synchronizing moving, only on the second driving shaft 423 of side, second drive motor 43 need be installed, the synchronizing moving of both sides second adjusting screw(rod) 402 can be realized, to regulate the distance between the second camera head 24 and circuit board 100 simultaneously.This mode can make the first optical imaging system 22 and described second optical imaging system 23 relative to circuit board 100 movement steadily, further increases the precision of distance adjustment, to improve image quality.In other embodiments, the first rotation handwheel 34 can be utilized to substitute the first drive motor 33 and second and to rotate alternative second drive motor 43 of handwheel 44 to realize manual adjustments; Also can adopt the first drive motor 33 in the first distance adjusting mechanism 3 and in second distance governor motion 4, adopt second to rotate handwheel 44, or, in described first distance adjusting mechanism 3, adopt first rotate handwheel 34 and in described second distance governor motion 4, adopt the second drive motor 43, to realize the semi-automation of distance adjustment.
Please refer to Fig. 3 to Fig. 5, in this embodiment, described first adjusting part 31 also comprises the first sliding seat 35 be fixedly installed on described main body frame 1, and described first sliding seat 35 to be supported between block 301 and described first worm and gear group 32 described first and to be provided with the first guide hole 350 passed for described first adjusting screw(rod) 302; Described second adjusting part 41 also comprises the second sliding seat 45 be fixedly installed on described main body frame 1, and described second sliding seat 45 to be supported between block 401 and described second worm and gear group 42 described second and to be provided with the second guide hole 450 passed for described second adjusting screw(rod) 402.Understandably, described first sliding seat 35 and described second sliding seat 45 are all fixedly installed on main body frame 1, preferably, described main body frame 1 is provided with second loading plate 16 parallel with described first fixed head 21, described first sliding seat 35 is fixedly installed on described second loading plate 16, the mode that can be bolted realizes, and described second sliding seat 45 adopts identical fixed form to be fixedly installed on main body frame 1.Utilize the first sliding seat 35 to locate this first adjusting screw(rod) 302 and to utilize the second sliding seat 45 to locate this second adjusting screw(rod) 402, prevent described first adjusting screw(rod) 302 from occurring offseting respectively in the first worm gear 320 and the second worm gear 420 rotation process with described second adjusting screw(rod) 402, to improve the precision of distance adjustment further, improve image quality.
Please refer to Fig. 5, in this embodiment, described first supporting member 30 also comprises the first reference column 303 being positioned at described first adjusting screw(rod) 302 both sides, and described first sliding seat 35 is provided with and is positioned at described first guide hole 350 both sides with the first pilot hole 352 coordinated with described first reference column 303; Described second supporting member 40 also comprises the second reference column 403 being positioned at described second adjusting screw(rod) 402 both sides, and described second sliding seat 45 is provided with and is positioned at described second guide hole 450 both sides with the second pilot hole 452 coordinated with described second reference column 403.By the first reference column 303 and the first pilot hole 352 cooperatively interacts and the second reference column 403 and the second pilot hole 452 cooperatively interact, to ensure that the first adjusting screw(rod) 302 can successfully move relative to the first guide hole 350 and the second guide hole 450 respectively with the second adjusting screw(rod) 402, and there is not deviation, improve distance adjustment precision better, improve image quality.
Please refer to Fig. 6 and Fig. 8, in this embodiment, described first adjusting part 31 also comprises the first mount pad 36 of being fixedly installed on described main body frame 1 and rotates the first setting nut 37 of driving described first adjusting screw(rod) 302 relative to the movement of described main body frame 1 relative to described first mount pad 36, and described first setting nut 37 is threaded with described first adjusting screw(rod) 302; Described second adjusting part 41 also comprises the second mount pad 46 of being fixedly installed on described main body frame 1 and rotates the second setting nut 47 of driving described second adjusting screw(rod) 402 relative to the movement of described main body frame 1 relative to described second mount pad 46, and described second setting nut 47 is threaded with described second adjusting screw(rod) 402.Understandably, described first setting nut 37 is limited on described first mount pad 36, can only rotate relative to the first mount pad 36, and can not slide along the first adjusting screw(rod) 302, similarly, described second setting nut 47 is limited on described second mount pad 46, can only rotate, and can not slide along the second adjusting screw(rod) 402 relative to the second mount pad 46.Described first setting nut 37 passes described first mount pad 36 and is threaded with described first setting nut 37, by rotating described first setting nut 37, described first camera head 20 is driven to move relative to described circuit board 100 to regulate described first adjusting screw(rod) 302, thus regulate the distance between described first camera head 20 and described circuit board 100, similarly, described second setting nut 47 passes described second mount pad 46 and is threaded with described second setting nut 47, by rotating described second setting nut 47, described second camera head 24 is driven to move relative to described circuit board 100 to regulate described second adjusting screw(rod) 402, thus regulate the distance between described second camera head 24 and described circuit board 100, to improve image quality.Preferably, mutually isostructural first distance adjusting mechanism 3 has all been installed in the both sides of the first optical imaging system 22, and has rotated each first setting nut 37 respectively, to regulate the distance between the first optical imaging system 22 and described circuit board 100; In the both sides of the second optical imaging system 23, mutually isostructural second distance governor motion 4 is all installed, and has rotated each second setting nut 47 respectively, to regulate the distance between the second optical imaging system 23 and described circuit board 100.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a circuit board double-side detection equipment, comprise main body frame and be arranged in described main body frame with the optical imaging system of the information of collecting circuit board, it is characterized in that: described main body frame comprises the worktable placing described circuit board, described optical imaging system comprises and is arranged at described worktable respectively relative to both sides to detect double-edged first optical imaging system of described circuit board and the second optical imaging system simultaneously, described first optical imaging system to comprise with described circuit board vertically disposed first camera head and is arranged in described main body frame for the first fixed head fixedly mounting described first camera head, described second optical imaging system to comprise with described circuit board vertically disposed second camera head and is arranged in described main body frame for the second fixed head fixedly mounting described second camera head, described circuit board double-side detection equipment also comprises the second distance governor motion of the spacing regulating the first distance adjusting mechanism of the spacing of described first optical imaging system and described circuit board and regulate described second optical imaging system and described circuit board, described first distance adjusting mechanism comprises with the first supporting member of the facing setting of described first fixed head and to be fixedly installed on described main body frame and to drive described first supporting member to move the first adjusting part of the spacing regulating described first camera head and described circuit board, described second distance governor motion comprises with the second supporting member of the facing setting of described second fixed head and to be fixedly installed on described main body frame and to drive described second supporting member to move the second adjusting part of the spacing regulating described second camera head and described circuit board.
2. circuit board double-side detection equipment as claimed in claim 1, it is characterized in that: described main body frame is provided with for the first mobile space of described first fixed head movement with for the second mobile space of described second fixed head movement, and comprise and be arranged at the transport sector of described worktable for transmission circuit plate.
3. circuit board double-side detection equipment as claimed in claim 2, it is characterized in that: described first optical imaging system also comprises and being fixedly installed on described main body frame and the first light source assembly between described first fixed head and described worktable, described second optical imaging system comprises and being fixedly installed on described main body frame and secondary light source assembly between described second fixed head and described worktable, described first light source assembly is with described first camera head just right between described worktable and described first camera head, described secondary light source assembly is with described second camera head just right between described worktable and described second camera head.
4. circuit board double-side detection equipment as claimed in claim 3, is characterized in that: described first light source assembly and the projection of described secondary light source assembly on described worktable are staggered mutually.
5. the circuit board double-side detection equipment as described in claim 2 to 4 any one, it is characterized in that: described first supporting member comprise be fixedly connected with described first fixed head first support block and support along described first the first adjusting screw(rod) that block extends towards described first adjusting part side, described first adjusting part regulates described first adjusting screw(rod) to move relative to described main body frame and drive described first to support block to move around with relative described first mobile space of described first fixed head; Described second supporting member comprise be fixedly connected with described second fixed head second support block and support along described second the second adjusting screw(rod) that block extends towards described second adjusting part side, described second adjusting part regulates described second adjusting screw(rod) to move relative to described main body frame and drive described second to support block to move around with relative described second mobile space of described second fixed head.
6. circuit board double-side detection equipment as claimed in claim 5, it is characterized in that: described first adjusting part comprises and drives described first adjusting screw(rod) relative to the first worm and gear group of described main body frame movement, described first worm and gear group comprises the first turbine be rotationally connected with described first adjusting screw(rod), the first driving shaft driving the first worm screw of described first turbine rotation, fixedly mount described first turbine and first holder of described first worm screw and be fixedly connected with described first worm screw; Described second adjusting part comprises and drives described second adjusting screw(rod) relative to the second worm and gear group of described main body frame movement, and described second worm and gear group comprises the second turbine be rotationally connected with described second adjusting screw(rod), the second driving shaft driving the second worm screw of described second turbine rotation, fixedly mount described second turbine and second holder of described second worm screw and be fixedly connected with described second worm screw.
7. circuit board double-side detection equipment as claimed in claim 6, is characterized in that: described first adjusting part also comprises and is connected to described first driving shaft one end and drives the first drive motor of described first drive shaft turns or first to rotate handwheel; Described second adjusting part also comprise be connected to described second driving shaft one end and drive described second drive shaft turns the second drive motor or second rotate handwheel.
8. circuit board double-side detection equipment as claimed in claim 6, it is characterized in that: described first adjusting part also comprises the first sliding seat be fixedly installed on described main body frame, described first sliding seat of gig to be supported between block and described first worm and gear group in described first and to be provided with the first sliding eye passed for described first adjusting screw(rod); Described second adjusting part also comprises the second sliding seat be fixedly installed on described main body frame, and described second sliding seat of gig to be supported between block and described second worm and gear group in described second and to be provided with the second sliding eye passed for described second adjusting screw(rod).
9. circuit board double-side detection equipment as claimed in claim 8, it is characterized in that: described first supporting member also comprises the first reference column being positioned at described first adjusting screw(rod) both sides, described first sliding seat is provided with and is positioned at described first sliding eye both sides with the first pilot hole coordinated with described first reference column; Described second supporting member also comprises the second reference column being positioned at described second adjusting screw(rod) both sides, and described second sliding seat is provided with and is positioned at described second sliding eye both sides with the second pilot hole coordinated with described second reference column.
10. circuit board double-side detection equipment as claimed in claim 5, it is characterized in that: described first adjusting part also comprises and is fixedly installed in the first holder on described main body frame and rotates to drive described first adjusting screw(rod) relative to the first setting nut of described main body frame movement relative to described first holder, and described first setting nut is threaded with described first adjusting screw(rod); Described second adjusting part also comprises and is fixedly installed in the second holder on described main body frame and rotates to drive described second adjusting screw(rod) relative to the second setting nut of described main body frame movement relative to described second holder, and described second setting nut is threaded with described second adjusting screw(rod).
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| CN201410168645.6A CN105021612B (en) | 2014-04-24 | 2014-04-24 | Circuit board double-side detection equipment |
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| CN201410168645.6A CN105021612B (en) | 2014-04-24 | 2014-04-24 | Circuit board double-side detection equipment |
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