Circuit board circulation conveying mechanism

Abstract

The utility model discloses a kind of circuit board circulation conveying mechanisms, belong to conveying mechanism technical field, including rack, further include: conveying device, clamping device and unlocking device, the conveying device is installed in rack middle side, multiple the clamping device is installed on conveying device, multiple the unlocking device is installed on rack, the clamping device includes: support plate, longitudinal side plate, first sliding rod, transverse connecting plate, first spring and guide wheel, the support plate is fixedly installed on conveying device, two the longitudinal side plate is respectively fixedly installed in support plate front and back two sides, two first sliding rods are slidably connected on the longitudinal side plate, the transverse connecting plate is fixedly installed in first sliding rod end close to support plate center. By the above mode, the utility model can intermittently convey circuit board while carrying out the fast alignment and clamping of circuit board in front and back and left and right direction, and circuit board can be quickly unlocked in conveying process.

Description

Technical Field

[0001] This utility model relates to the field of conveying mechanism technology, specifically a circuit board circulating conveying mechanism. Background Technology

[0002] The circuit board manufacturing process usually involves multiple insertion and surface mounting processes to insert or place various electronic components and small packaged chips onto the circuit board. After soldering, the components are connected to the circuit board. In particular, circuit boards with electronic components on both sides require multiple soldering processes. After the circuit board is manufactured, the electronic components need to be inspected to check whether the components are present, whether their positions are accurate, and whether the component models and polarities are correct, so as to determine whether there are any defects in the circuit board.

[0003] Chinese patent CN220519400U discloses a circuit board conveying mechanism, including a loading conveyor seat. A base plate is fixedly connected to the lower left side of the loading conveyor seat, and a unloading conveyor seat is fixedly installed on the left side of the base plate. Base blocks are fixedly installed at the front and rear of the top center of the base plate. Supports are fixedly connected to the front and rear of the left and right sides of the top of the base plate. Electric telescopic rods are movably connected to the inner side of the base blocks via bearings, and transmission crossbars are movably connected to the top of the electric telescopic rods via bearings. A hinge seat is movably connected to the left end of the transmission crossbars via bearings, and an L-shaped flipping frame is installed on the top of the hinge seat. The right end of the transmission crossbars is movably connected to the inner side of the right support via bearings. A reinforcing connecting rod is welded to the right side of the position between the transmission crossbars. A transmission support rod is movably connected to the middle left side of the L-shaped flipping frame via bearings, and the bottom end of the transmission support rod is movably connected to the support at the corresponding position via bearings.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent cannot quickly align and clamp the circuit board in the front-back and left-right directions while intermittently conveying the circuit board, nor can it quickly unlock the circuit board during the conveying process.

[0006] Therefore, those skilled in the art have provided a circuit board circulating transport mechanism to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of this invention is to provide a circuit board circulating conveying mechanism to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A circuit board circulating conveying mechanism includes a frame, and further includes: a conveying device, a clamping device, and an unlocking device. The conveying device is installed on the middle side of the frame, a plurality of clamping devices are installed on the conveying device, and a plurality of unlocking devices are installed on the frame. The clamping device includes: a support plate, a longitudinal side plate, a first sliding rod, a transverse connecting plate, a first spring, and guide wheels. The support plate is fixedly installed on the conveying device. Two longitudinal side plates are respectively fixedly installed on the front and rear sides of the support plate. Two first sliding rods are slidably connected to the longitudinal side plate. The transverse connecting plate is fixedly installed on one end of the first sliding rod near the center of the support plate. The first spring is disposed on the first sliding rod, with one end of the first spring tightly attached to the transverse connecting plate and the other end of the first spring tightly attached to the longitudinal side plate. Two guide wheels are respectively hinged to the left and right sides of the transverse connecting plate. The clamping device further includes: a left-right linkage mechanism, with two left-right linkage mechanisms respectively installed on the left and right sides of the support plate.

[0010] Furthermore, a front and rear L-shaped clamping plate is fixedly installed at one end of the transverse connecting plate near the center of the support plate;

[0011] Furthermore, the left and right linkage mechanism includes: a transverse side plate, a second sliding rod, left and right L-shaped clamping plates, and an irregular sliding frame. The transverse side plate is fixedly mounted on the support plate. Two second sliding rods are slidably connected to the transverse side plate. The left and right L-shaped clamping plates are fixedly mounted on the ends of the second sliding rods near the center of the support plate. The irregular sliding frame is fixedly mounted on the upper side of the left and right L-shaped clamping plates. The irregular sliding frame has strip-shaped openings on both the front and rear sides. The guide wheel is slidably connected in the strip-shaped openings.

[0012] Furthermore, the left and right linkage mechanism also includes: an auxiliary component, which is mounted on the first sliding rod. The auxiliary component includes: a connecting frame and a magnet. The connecting frame is fixedly mounted on the end of the first sliding rod away from the center of the support plate, and the magnet is fixedly mounted on the connecting frame.

[0013] Furthermore, the left and right linkage mechanism also includes: an elastic component, which is mounted on the second sliding rod. The elastic component includes: a second spring and a limiting plate. The second spring is disposed on the second sliding rod. One end of the second spring is in close contact with the left and right L-shaped clamps, and the other end of the second spring is in close contact with the transverse side plate. The limiting plate is fixedly mounted on the end of the second sliding rod away from the center of the support plate.

[0014] Furthermore, the conveying device includes: a vertical plate, an arc guide rail, sprockets, a chain, and sliders. The vertical plate is fixedly installed on the middle side of the frame, the arc guide rail is fixedly installed on the vertical plate, two sprockets are rotatably connected to the left and right sides of the vertical plate via a rotating shaft, the chain drive is connected to the two sprockets, and multiple sliders are slidably connected to the arc guide rail. One end of each slider is fixedly connected to the chain, and the support plate is fixedly installed on the slider of the conveying device.

[0015] Furthermore, the conveying device also includes: a Geneva drive and a drive motor, the Geneva drive is mounted on the frame, the drive motor is fixedly mounted on the frame via a motor bracket, the output end of the Geneva drive is fixedly connected to the shaft of one of the sprockets, and the output shaft of the drive motor is fixedly connected to the input end of the Geneva drive;

[0016] Furthermore, the unlocking device includes an extension frame and an electromagnet, wherein the extension frame is fixedly mounted on the frame and the electromagnet is fixedly mounted on the extension frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By placing the circuit board on the front and rear L-shaped clamping plates, the first spring of the clamping device is initially in an elastic deformation state. When the first spring is released and extended, the transverse connecting plate moves towards the center of the support plate. The movement of the transverse connecting plate towards the center of the support plate drives the front and rear L-shaped clamping plates to move towards the center of the support plate, thereby quickly aligning and clamping the circuit board. The movement of the transverse connecting plate towards the center of the support plate drives the guide wheel towards the center of the support plate. The guide wheel is slidably connected in the strip-shaped opening. The movement of the guide wheel towards the center of the support plate drives the irregular sliding frame of the left and right linkage mechanism to move towards the center of the support plate. The movement of the irregular sliding frame towards the center of the support plate drives the left and right L-shaped clamping plates to move towards the center of the support plate, thereby quickly aligning and clamping the circuit board. This facilitates the rapid alignment and clamping of the circuit board in both the front-to-back and left-to-right directions.

[0018] 2. The drive motor of the conveying device rotates, which drives the Geneva drive, causing the output end of the Geneva drive to rotate intermittently. The intermittent rotation of the Geneva drive output end drives the sprocket to rotate intermittently, which in turn drives the chain to move intermittently. The intermittent movement of the chain drives the slider to move intermittently, which in turn drives the clamping device to move intermittently. This facilitates the inspection or processing of circuit boards and allows the clamping device to be unlocked so that the circuit boards can fall. Multiple belt conveyors can be set on the underside of the frame. The circuit boards are transported away by the belt conveyors after falling, which is beneficial for the intermittent transport of circuit boards and allows for the rapid unlocking of the clamped circuit boards so that they can fall. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the circuit board testing mechanism after installation of this utility model;

[0020] Figure 2 This is a schematic diagram of a common circuit board fixture;

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 4 This is a front view of the present utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the present invention with some structures removed. Figure 1 ;

[0024] Figure 6 This is a three-dimensional schematic diagram of the present invention with some structures removed. Figure 2 ;

[0025] Figure 7 This is a partial structural diagram of the clamping device of this utility model.

[0026] In the diagram: 1. Frame; 2. Conveying device; 21. Vertical plate; 22. Arc guide rail; 23. Sprocket; 24. Chain; 25. Slider; 26. Geneva drive; 27. Drive motor; 3. Clamping device; 31. Support plate; 32. Longitudinal side plate; 33. First sliding rod; 34. Transverse connecting plate; 35. First spring; 36. Guide wheel; 37. Front and rear L-shaped clamping plates; 38. Transverse side plate; 39. Second sliding rod; 310. Left and right L-shaped clamping plates; 311. Irregular sliding frame; 312. Strip opening; 313. Connecting frame; 314. Magnet; 315. Second spring; 316. Limiting plate; 4. Unlocking device; 41. Extension frame; 42. Electromagnet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0029] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7A circuit board circulating conveying mechanism includes a frame 1, and further includes a conveying device 2, a clamping device 3, and an unlocking device 4. The conveying device 2 is installed on the middle side of the frame 1, a plurality of clamping devices 3 are installed on the conveying device 2, and a plurality of unlocking devices 4 are installed on the frame 1. The clamping device 3 includes a support plate 31, a longitudinal side plate 32, a first sliding rod 33, a transverse connecting plate 34, a first spring 35, and a guide wheel 36. The support plate 31 is fixedly installed on the conveying device 2, and two longitudinal side plates 32 are respectively fixedly installed on the front and rear sides of the support plate 31. On the side, two first sliding rods 33 are slidably connected to the longitudinal side plate 32. The transverse connecting plate 34 is fixedly installed at one end of the first sliding rod 33 near the center of the support plate 31. The first spring 35 is disposed on the first sliding rod 33. One end of the first spring 35 is in close contact with the transverse connecting plate 34, and the other end of the first spring 35 is in close contact with the longitudinal side plate 32. The two guide wheels 36 are respectively hinged to the left and right sides of the transverse connecting plate 34. The clamping device 3 also includes a left and right linkage mechanism. The two left and right linkage mechanisms are respectively installed on the left and right sides of the support plate 31.

[0030] The clamping device 3 is used to center and clamp the circuit board, so that the circuit board is always in the standard position during transportation and can be transported in a suspended manner. The conveying device 2 is used to intermittently transport the clamping device 3, and the unlocking device 4 is used to quickly unlock the clamping device 3, so that the circuit board quickly falls to the preset position.

[0031] The transverse connecting plate 34 is fixedly installed with front and rear L-shaped clamps 37 at one end near the center of the support plate 31.

[0032] The circuit board is placed on the front and rear L-shaped clamping plates 37. The first spring 35 of the clamping device 3 is initially in an elastic deformation state. When the first spring 35 is released and extended, the transverse connecting plate 34 moves toward the center of the support plate 31. The movement of the transverse connecting plate 34 toward the center of the support plate 31 drives the front and rear L-shaped clamping plates 37 to move toward the center of the support plate 31, thereby quickly aligning and clamping the front and rear positions of the circuit board.

[0033] The left and right linkage mechanism includes: a transverse side plate 38, a second sliding rod 39, left and right L-shaped clamping plates 310, and an irregular sliding frame 311. The transverse side plate 38 is fixedly installed on the support plate 31. Two second sliding rods 39 are slidably connected to the transverse side plate 38. The left and right L-shaped clamping plates 310 are fixedly installed at one end of the second sliding rods 39 near the center of the support plate 31. The irregular sliding frame 311 is fixedly installed on the upper side of the left and right L-shaped clamping plates 310. The irregular sliding frame 311 has strip-shaped openings 312 on both the front and rear sides. The guide wheel 36 is slidably connected in the strip-shaped openings 312.

[0034] The horizontal connecting plate 34 moves toward the center of the support plate 31, causing the guide wheel 36 to move toward the center of the support plate 31. The guide wheel 36 is slidably connected in the strip-shaped opening 312. The movement of the guide wheel 36 toward the center of the support plate 31 causes the irregular sliding frame 311 of the left and right linkage mechanism to move toward the center of the support plate 31. The movement of the irregular sliding frame 311 toward the center of the support plate 31 causes the left and right L-shaped clamping plates 310 to move toward the center of the support plate 31, quickly aligning and clamping the left and right positions of the circuit board.

[0035] To improve the clamping effect, thin anti-slip silicone pads can be provided on the side of the front and rear L-shaped clamping plates 37 and the left and right L-shaped clamping plates 310 near the center of the support plate 31 to improve the clamping effect.

[0036] The left and right linkage mechanism further includes an auxiliary component, which is installed on the first sliding rod 33. The auxiliary component includes a connecting frame 313 and a magnet 314. The connecting frame 313 is fixedly installed on the end of the first sliding rod 33 away from the center of the support plate 31, and the magnet 314 is fixedly installed on the connecting frame 313.

[0037] The magnet 314 of the auxiliary component moves away from the center of the support plate 31, causing the connecting frame 313 to move away from the center of the support plate 31. The moving of the connecting frame 313 away from the center of the support plate 31 causes the first sliding rod 33 to move away from the center of the support plate 31, causing the first spring 35 to undergo elastic deformation and be compressed.

[0038] The left and right linkage mechanism further includes an elastic component, which is installed on the second sliding rod 39. The elastic component includes a second spring 315 and a limiting plate 316. The second spring 315 is disposed on the second sliding rod 39. One end of the second spring 315 is in close contact with the left and right L-shaped clamps 310, and the other end of the second spring 315 is in close contact with the transverse side plate 38. The limiting plate 316 is fixedly installed on the end of the second sliding rod 39 away from the center of the support plate 31.

[0039] The second spring 315 provides elastic force for the left and right L-shaped clamps 310 to move left and right, and the limiting plate 316 limits the left and right movement of the left and right L-shaped clamps 310.

[0040] Example 2: In some embodiments, such as Figures 1-7In a preferred embodiment of this utility model, the conveying device 2 includes: a vertical plate 21, an arc guide rail 22, sprockets 23, a chain 24, and sliders 25. The vertical plate 21 is fixedly installed on the middle side of the frame 1, the arc guide rail 22 is fixedly installed on the vertical plate 21, two sprockets 23 are rotatably connected to the left and right sides of the vertical plate 21 through a rotating shaft, the chain 24 is drivenly connected to the two sprockets 23, and multiple sliders 25 are slidably connected to the arc guide rail 22. One end of each slider 25 is fixedly connected to the chain 24, and the support plate 31 is fixedly installed on the sliders 25 of the conveying device 2.

[0041] The conveying device 2 further includes a Geneva drive 26 and a drive motor 27. The Geneva drive 26 is mounted on the frame 1, and the drive motor 27 is fixedly mounted on the frame 1 via a motor bracket. The output end of the Geneva drive 26 is fixedly connected to the shaft of one of the sprockets 23, and the output shaft of the drive motor 27 is fixedly connected to the input end of the Geneva drive 26.

[0042] The drive motor 27 of the conveyor device 2 rotates, driving the Geneva drive 26, causing the output end of the Geneva drive 26 to rotate intermittently. The intermittent rotation of the output end of the Geneva drive 26 drives the sprocket 23 to rotate intermittently, which in turn drives the chain 24 to move intermittently. The intermittent movement of the chain 24 drives the slider 25 to move intermittently, which in turn drives the clamping device 3 to move intermittently. This facilitates the inspection or processing of the circuit board and makes it easy for the clamping device 3 to unlock and allow the circuit board to fall. Multiple belt conveyors can be installed on the lower side of the frame 1. The circuit board falls and is transported away by the belt conveyors, which is beneficial for the intermittent transport of the circuit board.

[0043] The unlocking device 4 includes an extension frame 41 and an electromagnet 42. The extension frame 41 is fixedly installed on the frame 1, and the electromagnet 42 is fixedly installed on the extension frame 41.

[0044] When the electromagnet 42 is activated, it attracts the magnet 314, causing the magnet 314 to move away from the center of the support plate 31. This causes the connecting frame 313 to move away from the center of the support plate 31. The movement of the connecting frame 313 away from the center of the support plate 31 causes the first sliding rod 33 to move away from the center of the support plate 31, resulting in the first spring 35 being compressed due to elastic deformation. The movement of the first sliding rod 33 away from the center of the support plate 31 causes the transverse connecting plate 34 to move away from the center of the support plate 31. The movement of the transverse connecting plate 34 away from the center of the support plate 31 causes the front and rear L-shaped clamps 37 to move away from the center of the support plate 31, thus quickly unlocking the front and rear positions of the circuit board.

[0045] The horizontal connecting plate 34 moves away from the center of the support plate 31, causing the guide wheel 36 to move away from the center of the support plate 31. The guide wheel 36 is slidably connected in the strip-shaped opening 312. The movement of the guide wheel 36 away from the center of the support plate 31 causes the irregular sliding frame 311 of the left and right linkage mechanism to move away from the center of the support plate 31. The movement of the irregular sliding frame 311 away from the center of the support plate 31 causes the left and right L-shaped clamps 310 to move away from the center of the support plate 31, thereby quickly unlocking the left and right positions of the circuit board.

[0046] In addition, such as Figure 1 and Figure 2 As shown, the operator loads the circuit board to be inspected from the left side of the equipment and places it on the fixture. The fixture can also be set as a regular circuit board fixture. The fixture moves to the right, causing the circuit board to move to the right. The equipment takes pictures of the circuit board for archiving. The robotic arm carries the camera to perform multi-angle and all-round inspection of the PCB board at the inspection station. After the camera captures the image of the PCB board, the operator judges whether the PCB board has defects.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A circuit board circulating conveying mechanism, comprising a frame (1), characterized in that, Also includes: The conveying device (2), clamping device (3), and unlocking device (4) are provided. The conveying device (2) is installed on the middle side of the frame (1). Multiple clamping devices (3) are installed on the conveying device (2), and multiple unlocking devices (4) are installed on the frame (1). The clamping device (3) includes: a support plate (31), a longitudinal side plate (32), a first sliding rod (33), a transverse connecting plate (34), a first spring (35), and a guide wheel (36). The support plate (31) is fixedly installed on the conveying device (2), and two longitudinal side plates (32) are respectively fixedly installed on the front and rear sides of the support plate (31). Two first sliding rods (33) are slidably connected on the side plate (32). The transverse connecting plate (34) is fixedly installed at one end of the first sliding rod (33) near the center of the support plate (31). The first spring (35) is set on the first sliding rod (33). One end of the first spring (35) is in close contact with the transverse connecting plate (34), and the other end of the first spring (35) is in close contact with the longitudinal side plate (32). The two guide wheels (36) are respectively hinged on the left and right sides of the transverse connecting plate (34). The clamping device (3) also includes: a left and right linkage mechanism. The two left and right linkage mechanisms are respectively installed on the left and right sides of the support plate (31).

2. The circuit board circulating conveying mechanism according to claim 1, characterized in that, The transverse connecting plate (34) is fixedly installed with front and rear L-shaped clamps (37) at one end near the center of the support plate (31).

3. The circuit board circulating conveying mechanism according to claim 2, characterized in that, The left and right linkage mechanism includes: a horizontal side plate (38), a second sliding rod (39), left and right L-shaped clamps (310), and an irregular sliding frame (311). The horizontal side plate (38) is fixedly installed on the support plate (31). Two second sliding rods (39) are slidably connected on the horizontal side plate (38). The left and right L-shaped clamps (310) are fixedly installed at one end of the second sliding rods (39) near the center of the support plate (31). The irregular sliding frame (311) is fixedly installed on the upper side of the left and right L-shaped clamps (310). The irregular sliding frame (311) has strip-shaped openings (312) on both the front and rear sides. The guide wheel (36) is slidably connected in the strip-shaped openings (312).

4. The circuit board circulating conveying mechanism according to claim 3, characterized in that, The left and right linkage mechanism further includes an auxiliary component, which is installed on the first sliding rod (33). The auxiliary component includes a connecting frame (313) and a magnet (314). The connecting frame (313) is fixedly installed at one end of the first sliding rod (33) away from the center of the support plate (31), and the magnet (314) is fixedly installed on the connecting frame (313).

5. The circuit board circulating conveying mechanism according to claim 4, characterized in that, The left and right linkage mechanism further includes an elastic component, which is mounted on the second sliding rod (39).

6. The circuit board circulating conveying mechanism according to claim 5, characterized in that, The conveying device (2) includes: a vertical plate (21), an arc guide rail (22), a sprocket (23), a chain (24), and a slider (25). The vertical plate (21) is fixedly installed on the middle side of the frame (1). The arc guide rail (22) is fixedly installed on the vertical plate (21). The two sprockets (23) are rotatably connected to the left and right sides of the vertical plate (21) through a rotating shaft. The chain (24) is driven and connected to the two sprockets (23). Multiple sliders (25) are slidably connected to the arc guide rail (22). One end of the slider (25) is fixedly connected to the chain (24). The support plate (31) is fixedly installed on the slider (25) of the conveying device (2).

7. The circuit board circulating conveying mechanism according to claim 6, characterized in that, The conveying device (2) further includes a Geneva drive (26) and a drive motor (27). The Geneva drive (26) is mounted on the frame (1), and the drive motor (27) is fixedly mounted on the frame (1) via a motor bracket. The output end of the Geneva drive (26) is fixedly connected to the shaft of one of the sprockets (23), and the output shaft of the drive motor (27) is fixedly connected to the input end of the Geneva drive (26).

8. The circuit board circulating conveying mechanism according to claim 1, characterized in that, The unlocking device (4) includes an extension frame (41) and an electromagnet (42). The extension frame (41) is fixedly installed on the frame (1), and the electromagnet (42) is fixedly installed on the extension frame (41).

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