1. A method for detecting welding spots of an integrated circuit is characterized by comprising the following steps:

the method comprises the following steps: inserting a circuit board to be detected into a board inlet (2) of a detection chamber (1) in detection equipment, placing the circuit board on a board conveying mechanism (8), adjusting the position of the circuit board above a bottom plate (9) by a conveying belt (10), driving the board conveying mechanism (8) to circularly lift by two mounting chains (5) through a first side plate (6) and a second side plate (7), and driving the circuit board to be detected to lift to the top by the board conveying mechanism (8);

step two: treat the circuit board that detects and carry out the centre gripping in two grip blocks (24), two grip blocks (24) drive and wait to detect the circuit board and rise, installation cylinder (31) piston rod promotes detection camera (32) and descends, side shift board (30) drive through installation cylinder (31) and detect camera (32) horizontal migration, detection camera (32) are treated the circuit board surface solder joint that detects and are shot and detect, after the detection completion of shooing, send board mechanism (8) to drive and wait to detect the circuit board and descend to income board mouth (2) one side, send board mechanism (8) to carry out the circuit board after detecting from going into board mouth (2).

2. The method for detecting the welding spot of the integrated circuit according to claim 1, wherein the detection device comprises a detection chamber (1), two side frames (3) are installed in the detection chamber (1), the two side frames (3) are oppositely arranged, fixed tracks (4) are fixed on the side frames (3), mounting chains (5) are rotatably installed on the fixed tracks (4), a plurality of first side plates (6) are installed on one mounting chain (5), a plurality of second side plates (7) are installed on the other mounting chain (5), the plurality of first side plates (6) are in one-to-one correspondence with the plurality of second side plates (7), a plate conveying mechanism (8) is installed between the first side plates (6) and the second side plates (7), two limiting mechanisms (20) are symmetrically installed on the inner walls of two sides of the detection chamber (1), the top of the detection chamber (1) is in an open shape, detection mechanism (25) are installed at detection room (1) top, two income board mouths (2) have been seted up to detection room (1) one side.

3. The method for detecting the welding point of the integrated circuit according to claim 2, wherein the plate feeding mechanism (8) comprises a bottom plate (9), a groove (13) is formed in the bottom plate (9), two belt rollers (12) are rotatably mounted in the groove (13), and the two belt rollers (12) are in transmission connection through a conveying belt (10).

4. The method of claim 2, wherein the step of detecting the pads of the IC is further performed, one side frame (3) is fixed with a fixed motor (14), the output shaft of the fixed motor (14) is connected with a first connecting rod (15), two upper chain wheels (16) are fixed on the first connecting rod (15), a second connecting rod (18) is rotatably arranged between the two side frames (3), two lower chain wheels (17) are fixed on the second connecting rod (18), the two upper chain wheels (16) correspond to the two lower chain wheels (17) one by one, the upper chain wheel (16) is in transmission connection with the lower chain wheel (17) through a chain, two rotating disks (19) are installed on the second connecting rod (18), the two rotating disks (19) correspond to the two installation chains (5) one by one, and the rotating disks (19) and the installation chains (5) are matched components.

5. The method for detecting the welding spot of the integrated circuit according to claim 2, wherein the limiting mechanism (20) comprises a lifting cylinder (21), a lifting plate (22) is installed at the end of a piston rod of the lifting cylinder (21), a clamping cylinder (23) is fixed on the upper surface of the lifting plate (22), and a clamping plate (24) is installed at the end of a piston rod of the clamping cylinder (23).

6. The method of claim 2, wherein the detecting mechanism (25) comprises a top frame (26), two guide rods (29) are slidably provided with a side shift plate (30), two mounting cylinders (31) are mounted on the lower surface of the side shift plate (30), and the ends of the piston rods of the two mounting cylinders (31) are provided with detecting cameras (32).

Background

An integrated circuit is a microelectronic device or component. The transistor, resistor, capacitor and inductor elements and wiring required in a circuit are interconnected together by a certain process, and are manufactured on a small semiconductor wafer or a plurality of small semiconductor wafers or medium substrates, and then are packaged in a package to form the micro-structure with the required circuit function. When processing a circuit board, electrical components are usually soldered to the circuit board. Welding spots are required to be detected after welding, the existing detection equipment cannot detect the welding spots on circuit boards with different sizes, the welding spots cannot be detected completely, the use of subsequent circuit boards is influenced, in addition, the whole detection process requires operators to place the circuit boards at detection positions, and the automation degree is not high.

Disclosure of Invention

The invention aims to provide a method for detecting welding spots of an integrated circuit, which solves the following technical problems: (1) the technical problems that in the prior art, circuit board detection equipment occupies a large space, and meanwhile, an operator needs to place a circuit board at a detection position during detection, and the automation degree is low are solved; (2) the technical problem that detection equipment in the prior art can not comprehensively detect circuit boards of different sizes is solved.

The purpose of the invention can be realized by the following technical scheme:

a method for detecting welding spots of an integrated circuit comprises the following steps:

the method comprises the following steps: inserting a circuit board to be detected into a board inlet of a detection chamber in detection equipment, placing the circuit board on a board conveying mechanism, starting a conveying motor, driving belt rollers to rotate by an output shaft of the conveying motor, driving a conveying belt to rotate by two belt rollers, adjusting the position of the circuit board above a bottom plate by the conveying belt, starting a fixed motor, driving a first connecting rod to rotate by an output shaft of the fixed motor, driving an upper chain wheel to rotate by the first connecting rod, driving a lower chain wheel to rotate by a chain, driving a second connecting rod to rotate by the lower chain wheel, driving two rotating disks to rotate, driving two mounting chains to rotate by the two rotating disks, driving the board conveying mechanism to circularly lift by the first side plate and the second side plate, and driving the circuit board to be detected to lift to the top by the board conveying mechanism;

step two: the centre gripping cylinder piston rod promotes the grip block, two grip blocks treat the circuit board that detects and carry out the centre gripping, open the lift cylinder, the lift cylinder piston rod promotes the lifter plate and rises, and then two grip blocks drive the circuit board that detects and treat, installation cylinder piston rod promotes the decline of detection camera, open adjusting motor, adjusting motor output shaft drives ball and rotates, ball drives and moves the board along guide bar horizontal migration to the side, the board is moved through installation cylinder drive detection camera horizontal migration to the side of moving the board, the detection camera treats the circuit board surface solder joint that detects and shoots the detection, after the detection of shooing is accomplished, the circuit board that the detection was treated is driven to descend to income board mouth one side to the plate feeding mechanism, the circuit board after the board feeding mechanism will detect is carried out from going into the board mouth.

Further, check out test set is including detecting the room, detect indoor two side bearers of installing, two side bearers are relative settings, be fixed with the trapped orbit on the side bearer, the last installation chain of rotating of trapped orbit installs a plurality of first curb plates, installs a plurality of second curb plates on one of them installation chain, a plurality of first curb plates and a plurality of second curb plate one-to-one, install between first curb plate and the second curb plate and send a board mechanism, detect indoor both sides inner wall symmetry and install two stop gear, it is the opening form to detect the roof portion, detect the roof portion and install detection mechanism, two income board mouths have been seted up to detection room one side.

Further, the plate feeding mechanism comprises a bottom plate, a groove is formed in the bottom plate, two belt rollers are installed in the groove in a rotating mode, the two belt rollers are connected through a conveying belt in a transmission mode, a conveying motor is installed on one side of the bottom plate, and an output shaft of the conveying motor is connected with one of the belt rollers.

Furthermore, a fixed motor is fixed on one side frame, a fixed motor output shaft is connected with a first connecting rod, two upper chain wheels are fixed on the first connecting rod, a second connecting rod is installed between the two side frames in a rotating mode, two lower chain wheels are fixed on the second connecting rod, the two upper chain wheels are in one-to-one correspondence with the two lower chain wheels, the upper chain wheels are connected with the lower chain wheels through chain transmission, two rotating discs are installed on the second connecting rod and are in one-to-one correspondence with the two installation chains, and the rotating discs and the installation chains are matched components.

Furthermore, stop gear includes the lift cylinder, the lifter plate is installed to lift cylinder piston rod tip, the surface mounting has the centre gripping cylinder on the lifter plate, the grip block is installed to centre gripping cylinder piston rod tip.

Further, detection mechanism includes the roof-rack, rotate on the roof-rack and install ball, the ball both sides are provided with two guide bars, and slidable mounting has the side to move the board on two guide bars, roof-rack one side is fixed with adjusting motor, adjusting motor output shaft ball, slidable mounting has the side to move the board on two guide bars, side board threaded connection ball, side move board lower surface mounting has two installation cylinders, and detection camera is installed to two installation cylinder piston rod tip.

The invention has the beneficial effects that:

(1) the invention discloses a method for detecting welding spots of an integrated circuit, which comprises the steps of inserting a circuit board to be detected into a board inlet of a detection chamber in detection equipment, placing the circuit board on a board conveying mechanism, starting a conveying motor, driving belt rollers to rotate by an output shaft of the conveying motor, driving a conveying belt to rotate by two belt rollers, adjusting the position of the circuit board above a bottom board by the conveying belt, starting a fixed motor, driving a first connecting rod to rotate by an output shaft of the fixed motor, driving an upper chain wheel to rotate by the first connecting rod, driving a lower chain wheel to rotate by a chain, driving a second connecting rod to rotate by the lower chain wheel, driving two rotary disks to rotate by the second connecting rod, driving two mounting chains to rotate by the two rotary disks, driving the board conveying mechanism to lift the circuit board to be detected by the first side board and the second side board to drive the board conveying mechanism to lift to the top, and ensuring that the circuit board can automatically and horizontally enter and exit the detection chamber by the board conveying mechanism, the automatic detection device has the advantages that the automation degree is high, the position of the circuit board on the bottom plate can be adjusted without manual regulation, the circuit board can be sequentially detected by the detection device in a circulating mode, the detection efficiency is high, and meanwhile, the ground space occupied by the whole detection device is small;

(2) the piston rod of the clamping cylinder pushes the clamping plates, the two clamping plates clamp the circuit board to be detected, the lifting cylinder is started, the piston rod of the lifting cylinder pushes the lifting plates to ascend, and then two grip blocks drive the circuit board that waits to detect and rise, installation cylinder piston rod promotes and detects the camera decline, open the adjusting motor, adjusting motor output shaft drives ball and rotates, ball drives side shift plate along guide bar horizontal migration, side shift plate drives through the installation cylinder and detects camera horizontal migration, the detection camera is treated the circuit board surface solder joint that detects and is shot the detection, stop gear can carry out the centre gripping to the circuit board of equidimension not, the interval of detection camera and circuit board can conveniently be adjusted to the setting of installation cylinder on the detection mechanism, the shooting of convenient detection camera to solder joint on the circuit board detects, the setting of side shift plate can be guaranteed that the detection camera detects to the comprehensive shooting of not equidimension circuit board.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a method for detecting pads of an integrated circuit according to the present invention;

FIG. 2 is a schematic view of the structure of the detecting mechanism of the present invention;

FIG. 3 is a schematic structural view of the head frame of the present invention;

FIG. 4 is a view showing the internal structure of the detecting chamber of the present invention;

FIG. 5 is a side view of the sideframe of the present invention;

FIG. 6 is an installation view of the rotating disk of the present invention;

FIG. 7 is a top view of the plate feeding mechanism of the present invention;

FIG. 8 is a drive view of the conveyor belt of the present invention;

fig. 9 is a schematic structural view of the limiting mechanism of the present invention.

In the figure: 1. a detection chamber; 2. a plate inlet; 3. a side frame; 4. fixing a track; 5. installing a chain; 6. a first side plate; 7. a second side plate; 8. a plate feeding mechanism; 9. a base plate; 10. a conveyor belt; 11. a conveying motor; 12. a belt roller; 13. a groove; 14. fixing a motor; 15. a first connecting rod; 16. an upper sprocket; 17. a lower sprocket; 18. a second connecting rod; 19. rotating the disc; 20. a limiting mechanism; 21. a lifting cylinder; 22. a lifting plate; 23. a clamping cylinder; 24. a clamping plate; 25. a detection mechanism; 26. a top frame; 27. adjusting the motor; 28. a ball screw; 29. a guide bar; 30. a side shift plate; 31. mounting a cylinder; 32. a camera is detected.

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.

Referring to fig. 1-9, the present invention is a method for detecting solder joints of an integrated circuit, comprising the following steps:

the method comprises the following steps: inserting a circuit board to be detected into a board inlet 2 of a detection chamber 1 in detection equipment, placing the circuit board on a board conveying mechanism 8, starting a conveying motor 11, driving belt rollers 12 to rotate by an output shaft of the conveying motor 11, driving a conveying belt 10 to rotate by the two belt rollers 12, adjusting the position of the circuit board above a bottom plate 9 by the conveying belt 10, starting a fixed motor 14, driving a first connecting rod 15 to rotate by an output shaft of the fixed motor 14, driving an upper chain wheel 16 to rotate by the first connecting rod 15, driving a lower chain wheel 17 to rotate by the upper chain wheel 16 through a chain, driving a second connecting rod 18 to rotate by the lower chain wheel 17, driving two rotating disks 19 to rotate by the second connecting rod 18, driving two mounting chains 5 to rotate by the two rotating disks 19, driving the board conveying mechanism 8 to circularly lift by the two mounting chains 5 through a first side plate 6 and a second side plate 7, and driving the circuit board to be detected to lift to the top by the board conveying mechanism 8;

step two: the piston rod of the clamping cylinder 23 pushes the clamping plates 24, the two clamping plates 24 clamp the circuit board to be detected, the lifting cylinder 21 is started, the piston rod of the lifting cylinder 21 pushes the lifting plate 22 to ascend, then the two clamping plates 24 drive the circuit board to be detected to ascend, the piston rod of the mounting cylinder 31 pushes the detection camera 32 to descend, the adjusting motor 27 is started, the output shaft of the adjusting motor 27 drives the ball screw 28 to rotate, the ball screw 28 drives the side shifting plate 30 to horizontally move along the guide rod 29, the side shifting plate 30 drives the detection camera 32 to horizontally move through the mounting cylinder 31, the detection camera 32 performs shooting detection on the surface welding spot of the circuit board to be detected, after the shooting detection is completed, the plate conveying mechanism 8 drives the circuit board to be detected to descend to one side of the plate inlet 2, and the plate conveying mechanism 8 conveys the detected circuit board out from the plate inlet 2.

Specifically, the check out test set is including detecting room 1, install two side bearer 3 in the detection room 1, two side bearer 3 are relative setting, be fixed with fixed track 4 on the side bearer 3, it installs installation chain 5 to rotate on the fixed track 4, install a plurality of first curb plate 6 on one of them installation chain 5, install a plurality of second curb plate 7 on another installation chain 5, a plurality of first curb plate 6 and a plurality of second curb plate 7 one-to-one, install between first curb plate 6 and the second curb plate 7 and send a board mechanism 8, two stop gear 20 are installed to 1 both sides inner wall symmetry of detection room, detect 1 top of room and be the opening form, detect 1 top of room and install detection mechanism 25, detect 1 one side of room and seted up two and go into board mouth 2.

The plate conveying mechanism 8 comprises a bottom plate 9, a groove 13 is formed in the bottom plate 9, two belt rollers 12 are installed in the groove 13 in a rotating mode, the two belt rollers 12 are connected through a conveying belt 10 in a transmission mode, a conveying motor 11 is installed on one side of the bottom plate 9, an output shaft of the conveying motor 11 is connected with one of the belt rollers 12, the circuit board can automatically horizontally enter and exit the detection chamber 1 through arrangement of the plate conveying mechanism 8, the automation degree is high, the position of the circuit board on the bottom plate 9 can be adjusted simultaneously, and manual adjustment is not needed.

A fixed motor 14 is fixed on one side frame 3, an output shaft of the fixed motor 14 is connected with a first connecting rod 15, two upper chain wheels 16 are fixed on the first connecting rod 15, a second connecting rod 18 is rotatably installed between the two side frames 3, two lower chain wheels 17 are fixed on the second connecting rod 18, the two upper chain wheels 16 are in one-to-one correspondence with the two lower chain wheels 17, the upper chain wheels 16 are connected with the lower chain wheels 17 through chain transmission, two rotating disks 19 are installed on the second connecting rod 18, the two rotating disks 19 are in one-to-one correspondence with the two installation chains 5, the rotating disks 19 are matched with the installation chains 5, through the above structural arrangement, the circuit board can be sequentially detected in a circulating mode, the detection efficiency is high, and meanwhile, the ground space occupied by the whole detection device is small.

Stop gear 20 includes lift cylinder 21, and lift plate 22 is installed to lift cylinder 21 piston rod tip, and surface mounting has clamping cylinder 23 on the lift plate 22, and clamping plate 24 is installed to clamping cylinder 23 piston rod tip, and stop gear 20 can carry out the centre gripping to the circuit board of equidimension not.

Detection mechanism 25 includes roof-rack 26, the last rotation mounting of roof-rack 26 has ball 28, ball 28 both sides are provided with two guide bars 29, slidable mounting has side shift plate 30 on two guide bars 29, roof-rack 26 one side is fixed with adjusting motor 27, adjusting motor 27 output shaft ball 28, slidable mounting has side shift plate 30 on two guide bars 29, side shift plate 30 threaded connection ball 28, side shift plate 30 lower surface mounting has two installation cylinders 31, detection camera 32 is installed to two installation cylinders 31 tailpiece of the piston rod portions, the interval of detection camera 32 and circuit board can conveniently be adjusted in the setting of installation cylinder 31 on detection mechanism 25, convenient detection camera 32 detects to the shooting of solder joint on the circuit board, side shift plate 30's setting can guarantee to detect camera 32 and detect to the comprehensive shooting of equidimension circuit board not.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" 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 otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.