CN202041475U

CN202041475U - Full-automatic board feeding optical image detecting device for printed circuit board (PCB)

Info

Publication number: CN202041475U
Application number: CN2011200565403U
Authority: CN
Inventors: 丘荣意
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-06
Filing date: 2011-03-06
Publication date: 2011-11-16
Anticipated expiration: 2021-03-06

Abstract

The utility model discloses a full-automatic board feeding optical image detecting device for a printed circuit board (PCB), which belongs to the technical field of PCB processing and has the main technical scheme of comprising a machine frame, wherein a plurality of board conveying rollers in horizontal and parallel arrangement are arranged on the machine frame, the board conveying rollers are connected with a rolling driving device, a centering positioning device for realizing the transverse and longitudinal positioning of the PCB is arranged on the machine frame in the forwards moving direction of the board conveying rollers, an image collecting device is arranged on the machine frame arranged above the board conveying roller at the back of the centering positioning device, the image collecting device corresponds to the PCB arranged on the board conveying rollers, and the image collecting device is connected with an intelligent control terminal with a circuit board correction program through a circuit. The utility model aims at providing an automatic optical image detecting device, which can be combined and matched with the various existing automatic circuit board releasing machines and circuit board collecting machines in the market and has the advantages that the automatic board inlet and outlet can be realized, the automation degree is high, and the production efficiency can be improved. The full-automatic board feeding optical image detecting device is used for automatic detection of line open circuit, short circuit, notch, burrs, line width/line space infraction, drilling missing, offset holes and the like of the PCB.

Description

The PCB circuit board automatically advances plate optical imagery pick-up unit

Technical field

The utility model relates to the manufacturing technology field of PCB circuit board optical imagery checkout equipment, more particularly, relates in particular to a kind of PCB circuit board automated optical image detection device.

Background technology

PCB circuit board automated optical image detection machine, generally it comprises image capturing system (mostly being the line sweep form), light-source system, mechanical system (driving and the location), control system, software systems (Flame Image Process) etc.Most on the market at present PCB circuit board automated optical image detection pick-up unit is owing to advance plate and ejecting plate all adopts manually-operated, automaticity is low, speed is slow, operate more loaded down with trivial details, this type of pick-up unit complex structure particularly, the manufacturing cost height, maintenance difficult, general middle-size and small-size circuit board enterprise is difficult to promote the use of.Therefore design a kind of compact conformation, can pass in and out plate, automaticity height and low cost of manufacture automatically, the device that uses of enhancing productivity, suit large area to popularize is design of the present utility model place.

The utility model content

The purpose of this utility model is the shortcoming that overcomes prior art, adopt modular design, a kind of compact conformation that can carry out combination accessory with automatic plate putting machine of existing multiple circuit board on the market and unloader is provided, can pass in and out plate, automaticity height automatically, the PCB circuit board automated optical image detection device that can enhance productivity.

The technical solution of the utility model is achieved in that a kind of PCB circuit board automatically advances plate optical imagery pick-up unit, comprises frame, and wherein said frame is provided with that some horizontal parallel arrange send the plate roller, send the plate roller to be connected with the roll drive device; On the frame of the working direction of sending the plate roller, be provided with the centering locating device of realizing the horizontal longitudinal register of PCB circuit board; Be provided with image collecting device sending on the frame above the plate roller of centering locating device back, image collecting device is relative with PCB circuit board on sending the plate roller; The image collector circuits is connected with the control of intelligent terminal of band circuit board collate program.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, described roll drive device is by being arranged on the driven spiral gear that respectively send plate roller one end, constituting with corresponding active oblique gear of each driven spiral gear and the drive unit that is connected with active oblique gear, active oblique gear links to each other by a fulcrum, and described drive unit and fulcrum link by driving-belt.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, and described drive unit is any one in stepper motor or the servomotor.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, described centering locating device mainly comprises the guidepost that is fixed on the frame, be located in located lateral movable block on the guidepost, be arranged on the travel mechanism that located lateral impact damper on the located lateral movable block and photoelectric sensor switch, driving located lateral movable block move, the longitudinal register bearing that is arranged on located lateral movable block rear end, first lift cylinder that is located in the longitudinal register elevating lever on the longitudinal register bearing and is connected with the longitudinal register elevating lever.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, described travel mechanism by the supporting base that is fixed on the frame both sides, be separately positioned on first synchronous pulley on the supporting base, be arranged on first driving-belt between first synchronous pulley and first stepper motor or the servomotor that are connected with one of them first synchronous pulley are formed.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, described located lateral impact damper is made of slip fixed cover, expansion link, retracing spring and back-up ring, expansion link is located in the slip fixed cover, retracing spring be set in slip fixed cover one side the expansion link periphery, back-up ring is arranged on the expansion link of slip fixed cover opposite side.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, the plate roller top of sending of described centering locating device back also is provided with at least two horizontal positioned and the plate pressure roller that send moving up and down, send the plate pressure roller and send the plate roller corresponding, respectively send the two ends of plate pressure roller to be respectively equipped with bearing, respectively send the contact site of plate pressure roller and bearing to be provided with bearing, send the bearing at plate pressure roller two ends all to be connected with second lift cylinder; Described second lift cylinder is fixed on the frame, and described second lift cylinder is fixed on the frame, and each second lift cylinder drives the corresponding plate pressure roller that send according to the pace of circuit board from front to back in regular turn along the working direction of circuit board and descends.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, described image collecting device by be arranged on cross slide way on the frame, be located in mobile seat on the cross slide way, be arranged on the image acquisition component that moves on the seat and with move the horizontal drive apparatus that seat is connected and constitute; Image acquisition component is connected with the control of intelligent terminal circuit.

Above-mentioned PCB circuit board automatically advances in the plate optical imagery pick-up unit, and described horizontal drive apparatus is by second synchronous pulley that is arranged on the frame both sides and be arranged on second driving-belt between second synchronous pulley and second stepper motor or the servomotor that are connected with one of them second synchronous pulley are formed.

After the utility model adopted said structure, by the batch (-type) plate feeding device that send plate roller and driving to send stepper motor that the plate roller rotates or servomotor to constitute, and in conjunction with optoelectronic switch, that realizes circuit board advanced plate automatically; Realize laterally and longitudinally locating of circuit board by the centering locating device, for next step detects ready; Further, match with sending the plate roller by sending the plate pressure roller, that realizes circuit board accurately send plate, proof by experiment, and it send the plate error in 0.1mm; The control of intelligent terminal that cooperates band circuit board collate program by image collecting device, realization is sent in the control of intelligent terminal by the image of the instantaneous collection of image collecting device, by control of intelligent terminal mechanical check PCB image information, realizes automatic testing, the accuracy of detection height, easy to operate;

The utlity model has and send plate automatically and send the plate high efficiency, the advantage that security performance is good, avoid adopting in the present technical pattern manually-operated to send the phenomenon of plate, and the utility model modular design, can carry out combination accessory with automatic plate putting machine of existing multiple circuit board on the market and unloader, provide a kind of compact conformation, the PCB circuit board detection device that can pass in and out plate, automaticity height and low cost of manufacture automatically, enhance productivity, suit large area to popularize and use.The utility model realize to the PCB circuit board circuit open circuit, short circuit, breach, burr, live width/line-spacing in violation of rules and regulations, leak bore, the technique effects that detect automatically such as hole partially.

Description of drawings

The utility model is described in further detail below in conjunction with the embodiment in the accompanying drawing, but do not constitute any restriction of the utility model.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the utility model send plate roller and the structural representation that send the plate pressure roller;

Fig. 3 is the structural representation of the utility model centering locating device;

Fig. 4 is the structural representation of the utility model located lateral impact damper.

Among the figure: frame 1, send plate roller 2, roll drive device 3, driven spiral gear 3a, active oblique gear 3b, drive unit 3c, centering locating device 4, guidepost 4a, located lateral movable block 4b, to middle guide 4c, located lateral impact damper 4d, photoelectric sensor switch 4e, the 4f of travel mechanism, longitudinal register bearing 4g, longitudinal register elevating lever 4h, the first lift cylinder 4i, supporting base 4j, the first synchronous pulley 4k, the first driving-belt 4l, first stepper motor or servomotor 4m, slip fixed cover 4n, expansion link 4o, retracing spring 4p, back-up ring 4q, image collecting device 5, cross slide way 5a, move seat 5b, image acquisition component 5c, horizontal drive apparatus 5d, the second synchronous pulley 5e, the second driving-belt 5f, second stepper motor or servomotor 5g, control of intelligent terminal 6, send plate pressure roller 7, bearing 7a, the second lift cylinder 7b.

Embodiment

Consult Fig. 1 to shown in Figure 4, a kind of PCB circuit board of the present utility model automatically advances plate optical imagery pick-up unit, comprise frame 1, what be provided with on frame 1 that some horizontal parallel arrange send plate roller 2, send plate roller 2 to adopt the bigger rigid material of friction factor to make, send plate roller 2 to be connected with roll drive device 3, roll drive device 3 is by being arranged on the driven spiral gear 3a that respectively send plate roller 2 one ends, constitute with corresponding active oblique gear 3b of each driven spiral gear 3a and the drive unit 3c that is connected with active oblique gear 3b, active oblique gear 3b links to each other by a fulcrum, and described drive unit 3c and fulcrum link by driving-belt; Drive unit 3c is any one in stepper motor or the servomotor, and present embodiment adopts stepper motor as drive motor; On the frame 1 of sending plate roller 2 the place ahead sides, be provided with optoelectronic switch, be used for the sensor circuit plate and start roll drive device 3 simultaneously; On the frame 1 of the working direction of sending plate roller 2, be provided with the centering locating device 4 of realizing the horizontal longitudinal register of PCB circuit board, centering locating device 4 mainly comprises the guidepost 4a that is fixed on the frame 1, be located in the located lateral movable block 4b on the guidepost 4a, be arranged on the frame 1 and corresponding to middle guide 4c with located lateral movable block 4b, be arranged on located lateral impact damper 4d and photoelectric sensor switch 4e on the located lateral movable block 4b, drive the 4f of travel mechanism that located lateral movable block 4b moves, be arranged on the longitudinal register bearing 4g of located lateral movable block 4b rear end, the first lift cylinder 4i that is located in the longitudinal register elevating lever 4h on the longitudinal register bearing 4g and is connected with longitudinal register elevating lever 4h, in the present embodiment, the 4f of travel mechanism is by the supporting base 4j that is fixed on frame 1 both sides, be separately positioned on the first synchronous pulley 4k on the supporting base 4j, being arranged on first driving-belt 4l between the first synchronous pulley 4k and first stepper motor that is connected with one of them first synchronous pulley 4k or servomotor 4m forms; Located lateral impact damper 4d is made of slip fixed cover 4n, expansion link 4o, retracing spring 4p and back-up ring 4q, expansion link 4o is located in the slip fixed cover 4n, retracing spring 4p be set in slip fixed cover 4n one side expansion link 4o periphery, back-up ring 4q is arranged on the expansion link 4o of slip fixed cover 4n opposite side; Be provided with image collecting device 5 sending on the frame 1 above the plate roller 2 of centering locating device 4 back, image collecting device 5 is relative with PCB circuit board on sending plate roller 2, image collecting device 5 by be arranged on cross slide way 5a on the frame 1, be located in mobile seat 5b on the cross slide way 5a, be arranged on the image acquisition component 5c that moves on the seat 5b and with move the horizontal drive apparatus 5d that seat 5b is connected and constitute; Cross slide way 5a and send plate roller 2 and send between the plate pressure roller 7 mutually horizontal parallel to arrange; Image acquisition component 5c circuit is connected with the control of intelligent terminal 6 of band circuit board collate program, and in the present embodiment, control of intelligent terminal 6 is a computing machine; Image acquisition component 5c can adopt photographic images or line sweep mode that the PCB circuit board is carried out image data acquiring, in the present embodiment, horizontal drive apparatus 5d is by the second synchronous pulley 5e that is arranged on frame 1 both sides be arranged on the second driving-belt 5f between the second synchronous pulley 5e and second stepper motor or the servomotor 5g that are connected with one of them second synchronous pulley 5e form; Advance the precision that plate moves in order to improve circuit board, centering locating device 4 back send plate roller 2 above also be provided with at least two horizontal positioned and the plate pressure roller 7 that send moving up and down, plate pressure roller 7 quantity of sending in the present embodiment are two, send plate pressure roller 7 to adopt elasticity electrostatic prevention glue material to make, send plate pressure roller 7 and send plate roller 2 corresponding, respectively send the two ends of plate pressure roller 7 to be respectively equipped with bearing 7a, respectively send plate pressure roller 7 and the contact site of bearing 7a to be provided with bearing, send the bearing 7a at plate pressure roller 7 two ends all to be connected with the second lift cylinder 7b, the second lift cylinder 7b is fixed on the frame 1, and each second lift cylinder 7b descends along the corresponding plate pressure roller 7 that send of the working direction driving in regular turn from front to back of circuit board according to the pace of circuit board; In order accurately to carry out transmission, to send 7 pairings of plate pressure roller send plate roller 2 adopt another independently stepper motor drive, drive send plate roller 2 stepper motor by the control terminal synchro control.

During concrete the use, after PCB circuit board of the present utility model automatically advances the startup of plate optical imagery pick-up unit, be transported to circuit board to be detected intermittently by a full-automatic plate putting machine (industry has standardized product) that plate feeding device send above the plate roller 2, send 2 rotations of plate roller to drive the PCB circuit boards by step motor drive and travel forward.

After being arranged on optoelectronic switch on the frame 1 of sending plate roller 2 next doors and recognizing the circuit board access arrangement, start the action of centering locating device 4 control signals, the first lift cylinder 4i promotes longitudinal register elevating lever 4h and rises, and stops circuit board and passes through; Simultaneously first stepper motor or servomotor 4m drive the first driving-belt 4l drive located lateral impact damper 4d left straight line move, circuit board is pushed to stopping behind the middle guide 4c, and its kinematic accuracy is by located lateral impact damper 4d and photoelectric sensor switch 4e synchro control.

Stepper motor stops to drive, and send plate roller 2 to suspend rotation, waits for instructing and prepares to do action next time; Send plate pressure roller 7 under the second lift cylinder 7b impetus, to move downward in regular turn from front to back, compress circuit board, restricting circuits plate degree of freedom; Subsequently, the first lift cylinder 4i does down maneuver, discharges circuit board it is passed through.

Located lateral movable block 4b drives located lateral impact damper 4d and returns initial position, prepares next cycling, finishes that circuit board accurately is positioned at position, the upper left corner (advancing the plate direction determines), and its bearing accuracy is in 0.1mm after tested;

Stepper motor starts, centering is sensed circuit board arrival initial position to the optoelectronic switch of deciding on the device 4 next door frames 1 simultaneously, promptly carry out computing by robot calculator, provide stepped parameter, the control step motor accurately rotates, drive send the plate roller 2 rotations, and the circuit board that assurance will be placed on above the rubber roll accurately is transported to the position of taking pictures (coverage).

Image collecting device 5 actions, under the effect of stepper motor or servomotor 5g, drive a mobile seat 5b by the second driving-belt 5f, thereby image acquisition component 5c (camera or scanner head) is laterally moved on cross slide way 5a, carry out image acquisition one by one, provide next step after finishing and instruct to and send plate roller 2.

Send the 2 accurate geneva motions of plate roller with circuit board toward repeatedly being transported to desired location, pass through fully until a circuit board, also just finished a circuit board detecting process.After finishing, each action gets back to original state, then next circulation beginning.

With above-mentioned, be preferred embodiment of the present utility model only, be not to do any type of restriction at the utility model; But the those of ordinary skill of all industry is all implemented the utility model with the above shown in the by specification accompanying drawing swimmingly; But all those skilled in the art can utilize the above technology contents that discloses and a little change, modification of making and the equivalent variations that develops in not breaking away from the utility model technical scope, be equivalent embodiment of the present utility model; Simultaneously, the change of any equivalent variations that all foundations essence technology of the present utility model has been done above embodiment, modify with differentiation etc., all belong within the protection domain of the technical solution of the utility model.

Claims

1. a PCB circuit board automatically advances plate optical imagery pick-up unit, comprises frame (1), it is characterized in that, described frame (1) is provided with that some horizontal parallel arrange send plate roller (2), send plate roller (2) to be connected with roll drive device (3); On the frame (1) of the working direction of sending plate roller (2), be provided with the centering locating device (4) of realizing the horizontal longitudinal register of PCB circuit board; Be provided with image collecting device (5) on the frame (1) of sending plate roller (2) top of centering locating device (4) back, image collecting device (5) is relative with PCB circuit board on sending plate roller (2); Image collecting device (5) circuit is connected with the control of intelligent terminal (6) of band circuit board collate program.

2. PCB circuit board according to claim 1 automatically advances plate optical imagery pick-up unit, it is characterized in that, described roll drive device (3) is by being arranged on the driven spiral gear (3a) that respectively send plate roller (2) one ends, constituting with the active oblique gear (3b) of the corresponding engagement of each driven spiral gear (3a) and the drive unit (3c) that is connected with active oblique gear (3b), active oblique gear (3b) links to each other by a fulcrum, and described drive unit (3c) links by driving-belt with fulcrum.

3. PCB circuit board according to claim 2 automatically advances plate optical imagery pick-up unit, it is characterized in that, described drive unit (3c) is any one in stepper motor or the servomotor.

4. PCB circuit board according to claim 1 automatically advances plate optical imagery pick-up unit, it is characterized in that, described centering locating device (4) mainly comprises the guidepost (4a) that is fixed on the frame (1), be located in the located lateral movable block (4b) on the guidepost (4a), it is last and corresponding to middle guide (4c) with located lateral movable block (4b) to be arranged on frame (1), be arranged on located lateral impact damper (4d) and photoelectric sensor switch (4e) on the located lateral movable block (4b), drive the mobile travel mechanism (4f) of located lateral movable block (4b), be arranged on the longitudinal register bearing (4g) of located lateral movable block (4b) rear end, first lift cylinder (4i) that is located in the longitudinal register elevating lever (4h) on the longitudinal register bearing (4g) and is connected with longitudinal register elevating lever (4h).

5. PCB circuit board according to claim 4 automatically advances plate optical imagery pick-up unit, it is characterized in that, described travel mechanism (4f) by the supporting base (4j) that is fixed on frame (1) both sides, be separately positioned on first synchronous pulley (4k) on the supporting base (4j), be arranged on first driving-belt (4l) between first synchronous pulley (4k) and first stepper motor or the servomotor (4m) that are connected with one of them first synchronous pulley (4l) are formed.

6. PCB circuit board according to claim 4 automatically advances plate optical imagery pick-up unit, it is characterized in that, described located lateral impact damper (4d) is made of slip fixed cover (4n), expansion link (4o), retracing spring (4p) and back-up ring (4q), expansion link (4o) is located in the slip fixed cover (4n), retracing spring (4p) be set in slip fixed cover (4n) side expansion link (4o) periphery, back-up ring (4q) is arranged on the expansion link (4o) of slip fixed cover (4n) opposite side.

7. PCB circuit board according to claim 1 automatically advances plate optical imagery pick-up unit, it is characterized in that, plate roller (2) top of sending of described centering locating device (4) back also is provided with at least two horizontal positioned and the plate pressure roller (7) that send moving up and down, that send plate pressure roller (7) and below send plate roller (2) corresponding, respectively send the two ends of plate pressure roller (7) to be respectively equipped with bearing (7a), respectively send the plate pressure roller (7) and the contact site of bearing (7a) to be provided with bearing, send the bearing (7a) at plate pressure roller (7) two ends all to be connected with second lift cylinder (7b); Described second lift cylinder (7b) is fixed on the frame (1), and each second lift cylinder (7b) drives the corresponding plate pressure roller (7) that send according to the pace of circuit board from front to back in regular turn along the working direction of circuit board and descends.

8. automatically advance plate optical imagery pick-up unit according to the arbitrary described PCB circuit board of claim 1 to 7, it is characterized in that, described image collecting device (5) by be arranged on cross slide way (5a) on the frame (1), be located in mobile seat (5b) on the cross slide way (5a), be arranged on the image acquisition component (5c) that moves on the seat (5b) and with move horizontal drive apparatus (5d) formation that seat (5b) is connected; Image acquisition component (5c) is connected with control of intelligent terminal (6) circuit.

9. PCB circuit board according to claim 8 automatically advances plate optical imagery pick-up unit, it is characterized in that described horizontal drive apparatus (5d) is by second synchronous pulley (5e) that is arranged on frame (1) both sides and be arranged on second driving-belt (5f) between second synchronous pulley (5e) and second stepper motor or the servomotor (5g) that are connected with one of them second synchronous pulley (5e) are formed.