SUMMERY OF THE UTILITY MODEL
The present invention is directed to a quality detection device for a PCB, so as to solve the problems of the related art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a quality detection device for a PCB comprises a rack, wherein a first workbench and a second workbench are arranged on the rack, an electronic screen is arranged inside the rack, an adjusting mechanism for adjusting the position of the electronic screen is arranged at the bottom of the electronic screen, a clamping mechanism for clamping a circuit board is arranged inside the rack, a pressing mechanism is arranged inside the rack, a control board is fixedly arranged on the rack, and a calibration mechanism is arranged inside the rack;
the calibrating mechanism comprises a first motor, the output end of the first motor is fixedly connected with a driving wheel, the surface of the driving wheel is connected with the surface of the driving wheel through a belt in a transmission mode, the frame plate is fixedly connected with the inside of the rack, the two bearing plates are fixedly connected to the frame plate, the lead screw is fixedly connected to the inside of the driving wheel, the surface of the lead screw is rotatably connected to the frame plate, a sliding support is arranged on the lead screw, a CCD camera is arranged on the sliding support, a first sliding sleeve is fixedly connected to the sliding support, a first sliding rail is fixedly mounted on the bearing plates, the first sliding sleeve is slidably connected with the first sliding rail, and a spacer sleeve is sleeved at the middle position of the surface of the lead screw.
Preferably, the number of the calibration mechanisms is two, and the two calibration mechanisms are respectively arranged on the two bearing plates.
Preferably, the number of the sliding supports is two, the two sliding supports are in threaded connection with the screw rod, one half of threads on the surface of the screw rod are left-handed threads, and the other half of threads are right-handed threads.
Preferably, the pressing mechanism comprises a pressing cylinder, a flat plate is fixedly connected to the pressing cylinder, a fixing seat is fixedly connected to the bottom of the flat plate, the flat plate is fixedly connected to the frame, an upper pressing seat is fixedly connected to the output end of the pressing cylinder, an upper pressing plate is fixedly connected to the bottom of the upper pressing seat, a fixing seat is fixedly connected to the lower portion of the upper pressing seat and located inside the frame, and a lower pressing plate is fixedly connected to the fixing seat.
Preferably, the upper pressure seat is fixedly connected with a sliding sleeve, the flat plate is fixedly connected with a guide rail plate, the guide rail plate is fixedly connected with a limiting sliding rail, and the sliding sleeve is connected with the limiting sliding rail in a sliding manner.
Preferably, guiding mechanism is including servo motor, servo motor's output fixedly connected with rotates the lead screw, the terminal surface that rotates the lead screw rotates and is connected with and rotates the seat, the bottom fixedly connected with connecting plate of rotating the seat, fixedly connected with set-square on the connecting plate, sliding connection has sliding sleeve two on the set-square, there is the extension board through bolted connection on the sliding sleeve two, fixedly connected with lifter plate on the extension board, the top fixedly connected with mounting panel of lifter plate, there is the cross slab through bolted connection on the set-square, cross slab bottom fixedly connected with thread block, thread block and the surface threaded connection who rotates the lead screw, fixed mounting has slide rail two on the connecting plate, slide rail two's surface is through sliding sleeve three and set-square sliding connection.
Preferably, four sliding rods are arranged at the bottom of the lifting plate, guide sleeves are connected to the surfaces of the sliding rods in a sliding mode, and the guide sleeves are fixedly connected to the connecting plate.
Preferably, the clamping mechanism is including the backup pad, be provided with the diaphragm in the backup pad, fixedly connected with riser on the diaphragm, there is cylinder one through bolted connection on the riser, output fixedly connected with cylinder two of cylinder one, the output fixedly connected with clamp splice of cylinder one, fixedly connected with splint on the riser, splint are located the below of clamp splice, fixed mounting has linear electric motor in the backup pad, linear electric motor's output and diaphragm fixed connection, the below of backup pad is provided with the removal module, the inside in the frame is fixed to the removal module.
Preferably, a first display screen and a second display screen are arranged inside the rack.
Compared with the prior art, the utility model has the beneficial effects that:
this quality detection device of PCB board, adjust the detection position of electronic screen through guiding mechanism, and the position that the calibration mechanism comes the indiscriminate detection of counter carries out automatic control in real time, realize semi-automatization, thereby make the accuracy of the whole detection of circuit board can improve, and the detection efficiency of circuit board also can improve greatly, it is big to have reduced operating personnel intensity of labour, detect the unsafe condition, and the mode that adopts pressfitting circular telegram mode from top to bottom to come the light electronic screen detects, make operating personnel observe more directly perceived, it is more obvious to show, reduce the condition that the omission appears in operating personnel to the detection of circuit board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to fig. 10, a technical solution provided by the present invention is:
a quality detection device for a PCB comprises a rack 1, a first workbench 2 and a second workbench 3 on the rack 1, an electronic screen 4 arranged inside the rack 1, an adjusting mechanism 8 for adjusting the position of the electronic screen 4 arranged at the bottom of the electronic screen 4, a clamping mechanism 9 for clamping a circuit board arranged inside the rack 1, a pressing mechanism 7 arranged inside the rack 1, a control board 5 fixedly arranged on the rack 1, and a calibration mechanism 6 arranged inside the rack 1;
the calibration mechanism 6 comprises a first motor 601, an output end of the first motor 601 is fixedly connected with a driving wheel 602, the surface of the driving wheel 602 is in transmission connection with the surface of a transmission wheel 603 through a belt, a frame plate 10 is fixedly connected inside the frame 1, two bearing plates 13 are fixedly connected on the frame plate 10, a lead screw 604 is fixedly connected inside the transmission wheel 603, the surface of the lead screw 604 is rotatably connected on the frame plate 10, a sliding support 605 is arranged on the lead screw 604, a CCD camera 607 is arranged on the sliding support 605, a sliding sleeve 606 is fixedly connected on the sliding support 605, a sliding rail 609 is fixedly arranged on the bearing plate 13, the sliding sleeve 606 is in sliding connection with the sliding rail 609, a spacer 608 is sleeved on the middle position of the surface of the lead screw 604, the rotation of the first motor 601 is controlled by the transmission of a belt pulley, and the relative movement of the two sliding supports 605 is directly driven by a threaded connection mode, thereby enabling the position of the CCD camera 607 to be flexibly centered for position calibration.
Furthermore, the number of the calibration mechanisms 6 is two, the two calibration mechanisms 6 are respectively arranged on the two bearing plates 13, the two calibration mechanisms 6 are used for respectively controlling electronic calibration and circuit board position calibration, and the detection positions are controlled by confirming the relative positions of the two calibration mechanisms 6, so that the detection positions of the circuit board and the electronic screen 4 can be well overlapped.
Furthermore, the number of the sliding supports 605 is two, the two sliding supports 605 are in threaded connection with the screw rod 604, a half thread on the surface of the screw rod 604 is a left-handed thread, the two motors are in rotation to control the rotation of the two screw rods 604 respectively, and through the threaded connection mode, the two groups of sliding supports 605 are driven to move, a half thread is a right-handed thread, a half left-handed thread and a half right-handed thread are arranged on the two screw rods 604, so that the two sliding seats on the screw rods can move relatively, centering alignment and shooting are performed by the aid of the two sliding seats, the whole shooting range is enlarged, and flexibility is improved.
In addition, pressing mechanism 7 is including pushing down cylinder 71, fixedly connected with is dull and stereotyped 72 on pushing down cylinder 71, the bottom fixedly connected with fixing base 73 of dull and stereotyped 72, dull and stereotyped 72 fixed connection is in frame 1, pushing down cylinder 71's output fixedly connected with pushes down seat 78, the bottom fixedly connected with top board 75 of seat 78 is pushed up, the inside of frame 1 is located the below fixedly connected with fixing base 73 of seat 78 of pushing down, fixedly connected with holding down plate 74 on the fixing base 73, pushing down cylinder 71 pushes down and drives top board 75 and push down, pass through the electrical contact on electronic screen 4 with the slow pressfitting of circuit board, and receive the whole pressfitting of top board 75, make the contact point position of circuit board and electronic screen 4, carry out inseparable laminating, the not hard up condition can not appear, keep accuracy and stability in the testing process.
Besides, the upper pressing seat 78 is fixedly connected with a sliding sleeve 77, the flat plate 72 is fixedly connected with a guide rail plate, the guide rail plate 79 is fixedly connected with a limiting sliding rail 76, the sliding sleeve 77 is slidably connected with the limiting sliding rail 76, the conveying position of the pressing cylinder 71 can be further limited through the limiting sliding rail 76, the pressing plate 74 is driven to be vertically pressed downwards, and the conditions of dislocation and pressure skew cannot occur.
It should be noted that the adjusting mechanism 8 includes a servo motor 801, an output end of the servo motor 801 is fixedly connected with a rotating screw rod 802, an end face of the rotating screw rod 802 is rotatably connected with a rotating seat 803, a connecting plate 813 is fixedly connected to a bottom of the rotating seat 803, a triangular plate 807 is fixedly connected to the connecting plate 813, a second sliding sleeve 808 is slidably connected to the triangular plate 807, a support plate 809 is connected to the second sliding sleeve 808 through a bolt, a lifting plate 814 is fixedly connected to the support plate 809, a mounting plate 815 is fixedly connected to a top of the lifting plate 814, a cross plate 811 is connected to the triangular plate 807 through a bolt, a threaded block 810 is fixedly connected to a bottom of the cross plate 811, the threaded block 810 is in threaded connection with a surface of the rotating screw rod 813, a second sliding rail 806 is fixedly mounted on the connecting plate, a surface of the second sliding rail 806 is slidably connected to the triangular plate 807 through a third sliding sleeve 812, the threaded connection drives the cross plate 811 and the triangular plate 807 to move back and forth through the triangular plate 807, and the removal of set-square 807 will drive lifter plate 814 and carry out accurate removal from beginning to end to the mounting panel 815 accurate removal to detect the position of pressfitting on, thereby carry out height and front and back position to electronic screen 4 and carry out the high precision and adjust, adapt to the operating personnel of different height types and use, make operating personnel's visual angle can be more clear see the position that the pressfitting detected, make detect more accurate.
It is worth to be noted that four sliding rods 804 are arranged at the bottom of the lifting plate 814, guide sleeves 805 are slidably connected to the surfaces of the sliding rods 804, the guide sleeves 805 are fixedly connected to the connecting plate 813, and the position of the lifting plate 814 is limited by the four sliding rods 804, so that the lifting plate 814 can move back and forth and can adjust the height at the same time, and the same-direction movement and the two-way adjustment are realized.
In addition, the clamping mechanism 9 comprises a supporting plate 98, a transverse plate 92 is arranged on the supporting plate 98, a vertical plate 97 is fixedly connected to the transverse plate 92, a first air cylinder 93 is connected to the vertical plate 97 through a bolt, a second air cylinder 94 is fixedly connected to the output end of the first air cylinder 93, a clamping block 95 is fixedly connected to the output end of the first air cylinder 93, a clamping plate 96 is fixedly connected to the vertical plate 97, the clamping plate 96 is positioned below the clamping block 95, a linear motor 91 is fixedly installed on the supporting plate 98, the output end of the linear motor 91 is fixedly connected to the transverse plate 92, a moving module 99 is arranged below the supporting plate 98, the moving module 99 is fixed inside the frame 1, and the circuit board is integrally and quickly and fixedly pressed through the telescopic motion of the two air cylinders, so that the situation that the circuit board is displaced and dislocated during the pressing in the detection process is avoided, and the detection stability of the whole circuit board is further improved, and linear electric motor 91 will operate, the direct drive diaphragm 92 rises or descends, the subassembly that whole fixed circuit board will be driven to rise of diaphragm 92 will rise or descend, adjust the height that the circuit board pressfitting detected, make equipment when dealing with the circuit board detection of different thickness, all can nimble use, removal module 99 drive connecting plate 813 back-and-forth movement, and removal module 99 can be hinge class transmission assembly, it can to remove through electronic components and parts drive connecting plate 813, can carry out the front and back flexible of position to whole clamping mechanism 9 through the effect of removal module 99, provide great space, make operating personnel be convenient for lay the circuit board.
In addition, the inside of frame 1 is provided with display screen 11 and display screen two 12, and display screen 11 and display screen two 12 can be fine give the operation of two stations and show for operating personnel is more smooth and easy to the operation and the use of equipment.
When the quality detection device of the PCB is used, firstly, the electronic screen 4 is manually placed on the adjusting mechanism 8, the electronic screen 4 is a detection device which is similar to a mobile phone screen, when the circuit board is electrified and the internal circuit is a path, the electronic screen 4 can automatically light up, so as to directly confirm the quality problem of the circuit board, when the electronic screen 4 is adsorbed and fixed through the adsorption hole formed on the adjusting mechanism 8, the rotation of the servo motor 801 drives the rotation of the rotation screw rod 802 by controlling the rotation of the servo motor 801, after the rotation screw rod 802 rotates, the transverse connecting plate 811 and the triangular plate connected above are driven to move back and forth in a threaded connection mode, and the movement of the triangular plate 807 drives the lifting plate 814 to accurately move back and forth, so as to accurately move the mounting plate 815 to the position of detection pressing, the triangular plate 807 moves back and forth and moves up and down to control the height position of the lifting plate 814 due to the limitation of the four sliding rods 804, so that the height position of the electronic screen 4 can be accurately adjusted and integrally regulated, operators with different heights can conveniently operate, the use of the whole equipment is not limited, the cameras below the electronic screen 4 after the electronic screen 4 is placed can conveniently shoot the position of the electronic screen 4 to input the position into a system, the system is used for receiving the position through the control panel 5, at the moment, the operators can place the circuit board on the two clamping plates 96 from the position of the second workbench 3, after the circuit board is tiled, the air cylinder II 94 contracts to move the clamping block 95 to the upper side of the circuit board, and then the air cylinder I93 contracts to directly control the whole air cylinder II 94 and the clamping block 95 to be pressed down, the circuit board is pressed tightly, three rubber chucks are arranged on the clamping block 95, when the circuit board is contacted, a certain buffering and protecting effect is achieved, after clamping is achieved, the moving module 99 can control the moving of the clamping mechanism, the moving module 99 can be a hinge type transmission assembly, the whole clamping mechanism 9 is driven to move back and forth through an electric component, when the circuit board is moved to the other two CCD cameras 607 to shoot the position of the circuit board, the shot position image is also transmitted to the control panel 5, the operation of the moving module 99 and the linear motor 91 is controlled through the calculation of the relative positions of the electronic screen 4 and the circuit board by the control panel 5, the circuit board is accurately transferred to the position to be detected, the control panel 5 sends a signal to the lower pressure cylinder 71, the movement of the lower pressure cylinder 71 can control the upper pressure seat to move downwards 78 to drive the upper pressure plate 75 to slightly press the circuit board, make the electric contact position of circuit board and electronic screen 4, carry out in close contact with, after the circuit board contacts with electronic screen 4, will the circular telegram detects the circuit board, after electronic screen 4 lights, it is good to represent this circuit board, when electronic screen 4 does not light, represent this circuit board probably has a problem, it carries out effectual differentiation and detection to the circuit board to be convenient for measurement personnel, and whole device has adopted the mode of semi-automatic words, improve detection efficiency and the accuracy to the circuit board, and after the pressfitting, pressing mechanism 7 and fixture 9 reset, come the normal position of sending back the circuit board, it sorts to take to be convenient for operating personnel.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.