Circuit board feeding and discharging device

Abstract

The utility model discloses a circuit board feeding and discharging device which comprises a base and further comprises a first mechanical arm, a second mechanical arm, a feeding head and a carrier. A mounting mechanism and a CCD camera body; a base is fixedly connected to the upper end of the base, a first mechanical arm is arranged on the base, a second mechanical arm is arranged on the first mechanical arm, a feeding head is arranged on the second mechanical arm, a carrier is fixedly connected to the upper end of the base, and a mounting plate is in contact with the upper end of the carrier. According to the CCD camera feeding device, the first mechanical arm, the second mechanical arm, the feeding head and other components are arranged, the first mechanical arm is driven to operate through the base, and the CCD camera body can be fixed through the mounting mechanism. After the first mechanical arm drives the second mechanical arm, the second mechanical arm drives the feeding head to conduct adsorption feeding on the circuit board, and contact and friction between the board and the rolling wheels in the conveying and carrying process are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of loading and unloading devices, and particularly relates to a circuit board loading and unloading device. Background Art

[0002] The circuit board loading and unloading device is one of the key devices on the automatic production line, which is used to automatically complete the loading and unloading of circuit boards during the circuit board production process, improve production efficiency and product quality. With the development of electronic products towards the direction of being light, thin, short and small, the production process of PCB and carrier board circuits gradually transitions to the mSAP process. During the production process of mSAP circuits, a photosensitive material needs to be coated on the surface of the board. After development, the width of the photosensitive material is relatively small and there is no protection of the protective film. Contact with the roller will cause scratching problems and result in poor quality. Therefore, non-contact vertical development is widely used. During the development process, the production board needs to be clamped by a vertical frame, and there is no roller contact with the board during the production process. After development, the board needs to be rotated from the vertical direction to the horizontal direction in order to place the board on the industrial loading tool that is convenient for storage and transportation. Therefore, generally, a horizontal transmission section is used after development, and then a robotic arm is used to transfer the board to the industrial loading tool.

[0003] The prior art provides a circuit board adsorption device and a circuit board loading and unloading robotic arm (Publication No.: CN205474047U). The device includes: a circuit board adsorption device, including a bracket, a suction cup, a plurality of suction nozzles, and a pumping device. The suction nozzles are used to adsorb the non-porous peripheral edge of the circuit board. The suction nozzles will not generate suction force on the next circuit board. When the suction nozzles adsorb the circuit board and move upward to a certain distance, the adsorbed circuit board is separated from other circuit boards in the tray, and at the same time, the adsorption surface of the suction nozzles is coplanar with the front surface of the suction cup. Then, the suction cup adsorbs the middle position of the circuit board to ensure a stable and uniform adsorption force on the circuit board and prevent the circuit board from falling. Since the suction nozzles adsorb at the non-porous position at the beginning and the suction cup generates suction force only after the adsorbed circuit board is separated from other circuit boards in the tray, it will not adsorb multiple circuit boards, and multiple circuit boards will not be transported to the production line during loading. At the same time, setting the suction cup can reduce the pressure on the circuit board during adsorption and overcome the imprint generated in the middle of the circuit board when the suction nozzles adsorb the middle position of the circuit board.

[0004] However, the following defects still exist in the traditional circuit board loading and unloading device:

[0005] Vertical development is non-contact, that is, the board is fixed by a frame fixture during transmission and there is no roller contact with the board. However, after the board is developed, a horizontal transmission section and a robotic arm are required to transfer the board to the industrial loading tool, and the board will contact the transmission roller. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a circuit board loading and unloading device. The device uses a base to drive the operation of a first robotic arm, drives the operation of a second robotic arm through the first robotic arm, and drives the loading head to adsorb the circuit board by the second robotic arm, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions:

[0008] A circuit board loading and unloading device includes a base, and also includes a first robotic arm, a second robotic arm, a loading head, a carrier; a mounting mechanism and a CCD camera body; the upper end of the base is fixedly connected with a base, the base is provided with a first robotic arm, the first robotic arm is provided with a second robotic arm, the second robotic arm is provided with a loading head, the upper end of the base is fixedly connected with a carrier, an installation plate is in contact with the upper end of the carrier, and a mounting mechanism for fixing the CCD camera body is provided on the installation plate.

[0009] Preferably, the mounting mechanism includes a screw hole, a bolt, a ring groove, a pin, a fixing ring, a spring, and a pulling block. A screw hole is opened at the upper end of the carrier, a bolt is connected in the screw hole by a thread, a ring groove is opened in the bolt, a pin slides in the ring groove, a fixing ring is fixedly connected in the installation plate, a pulling block is in contact with the side of the installation plate, and a spring is sleeved outside the pin.

[0010] Preferably, the number of the bolts is four, and the four bolts are rotatably connected in the installation plate in two groups.

[0011] Preferably, one end of the spring is fixedly connected to the fixing ring, and the other end of the spring is fixedly connected to the fixing ring.

[0012] Preferably, a pulling block is fixedly connected to the pin, the pin slides in the fixing ring, and the pin slides in the installation plate.

[0013] Preferably, the upper end of the installation plate is fixedly connected with a CCD camera body.

[0014] Preferably, the number of the CCD camera bodies is two, and the two CCD camera bodies are symmetrically distributed on the carrier.

[0015] Preferably, a loading groove is opened in the carrier.

[0016] Preferably, the first robotic arm, the second robotic arm and the loading head can all rotate.

[0017] Preferably, the loading head can identify the circuit board.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] The utility model avoids the contact and friction between the board and the rollers during the transmission and handling processes by setting components such as a first robotic arm, a second robotic arm, and a loading head, driving the first robotic arm to operate through a base, driving the second robotic arm by the first robotic arm, and then driving the loading head by the second robotic arm to adsorb and load the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the utility model;

[0021] Figure 2 is Figure 1 an enlarged view of area A in

[0022] Figure 3 is a partial schematic diagram of the installation mechanism of the utility model;

[0023] Figure 4 is Figure 3 an enlarged view of area B in

[0024] Figure 5 is a schematic structural diagram of the mechanical claw of the utility model.

[0025] In the figure: 1, base; 2, pedestal; 3, first robotic arm; 4, second robotic arm; 5, loading head; 6, carrier; 7, load slot; 8, mounting plate; 9, installation mechanism; 91, screw hole; 92, bolt; 93, annular groove; 94, retaining pin; 95, fixing ring; 96, spring; 97, pulling block; 10, CCD camera body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 to 5 , the present utility model provides a circuit board loading and unloading device, including a base 1, and further including a first robotic arm 3, a second robotic arm 4, a loading head 5, a carrier 6; an installation mechanism 9 and a CCD camera body 10; the upper end of the base 1 is fixedly connected to a pedestal 2, a first robotic arm 3 is arranged on the pedestal 2, a second robotic arm 4 is arranged on the first robotic arm 3, a loading head 5 is arranged on the second robotic arm 4, the upper end of the base 1 is fixedly connected to a carrier 6, the upper end of the carrier 6 is in contact with a mounting plate 8, and an installation mechanism 9 for fixing the CCD camera body 10 is arranged on the mounting plate 8.

[0028] The circuit board to be processed can be picked up by the automatic rotational movement of the first robotic arm 3, the second robotic arm 4, and the loading head 5, and the carrier 6 can place the circuit board.

[0029] In this embodiment, as Figure 3 shown, the mounting mechanism 9 includes a screw hole 91, a bolt 92, a ring groove 93, a retaining pin 94, a fixing ring 95, a spring 96, and a pulling block 97. A screw hole 91 is opened at the upper end of the carrier 6, and a bolt 92 is threadedly connected in the screw hole 91. A ring groove 93 is opened in the bolt 92, and a retaining pin 94 is slidably connected in the ring groove 93. A fixing ring 95 is fixedly connected in the mounting plate 8, a pulling block 97 is in contact with the side surface of the mounting plate 8, and a spring 96 is sleeved outside the retaining pin 94.

[0030] The retaining pin 94 can be moved by pulling the pulling block 97, and then the bolt 92 is rotated. A threaded movement occurs between the bolt 92 and the screw hole 91, and the bolt 92 can be moved into the screw hole 91. At this time, the mounting plate 8 can be limited, and the installation of the CCD camera body 10 is completed. When the pulling block 97 is released, the retaining pin 94 is moved and slides into the ring groove 93 opened in the bolt 92 under the elastic action of the spring 96, which can limit the bolt 92 and prevent the installation of the CCD camera body 10 from becoming loose due to the loosening of the bolt 92 after long-term use.

[0031] In a further preferred embodiment, as Figure 3 shown, the number of bolts 92 is four, and the four bolts 92 are rotatably connected in the mounting plate 8 in two groups of two.

[0032] The bolts 92 in two groups of two can provide a more stable installation for the mounting plate 8, and prevent the deviation of the CCD camera body 10 from capturing the edge line due to the unstable installation of the mounting plate 8, resulting in abnormal processing of the circuit board.

[0033] Furthermore, as Figure 4 shown, one end of the spring 96 is fixedly connected to the fixing ring 95, and the other end of the spring 96 is fixedly connected to the fixing ring 95.

[0034] During the process of the pulling block 97 driving the retaining pin 94 to move, the pulling block 97 stretches the spring 96 to generate elastic force, and then under the elastic force of the spring 96, the pulling block 97 can be driven to move back to its original position, thereby driving the retaining pin 94 fixed on the pulling block 97 to move back to its original position.

[0035] In addition, as Figure 4 shown, a pulling block 97 is fixedly connected to the retaining pin 94, the retaining pin 94 is slidably connected in the fixing ring 95, and the retaining pin 94 is slidably connected in the mounting plate 8.

[0036] During the movement of the latch 94, the fixed ring 95 can guide the latch 94 to prevent the latch 94 from shifting during movement, and the fixed ring 95 can also install the spring 96.

[0037] In addition, as Figure 2 shown, the upper end of the mounting plate 8 is fixedly connected to the CCD camera body 10.

[0038] By using the CCD camera body 10, it is possible to avoid placing the plate outside the effective range of the carrier 6 during material collection, reducing the scrap caused by scratches. During loading, it can correct the position deviation of the plate in the industrial carrier 6 during transportation, reducing the scrap caused by the manipulator not being able to pick up the plate.

[0039] It is worth noting that, as Figure 1 shown, the number of CCD camera bodies 10 is two, and the two CCD camera bodies 10 are symmetrically distributed on the carrier 6.

[0040] The two CCD camera bodies 10 can capture the positions of the two side edges of the device, accurately position the product, and then compare the position information with the positions set in the manipulator program. The arm makes rotational, translational and other movements according to the comparison results to accurately grasp the plate, and finally places the plate at the position set by the program.

[0041] Specifically, as Figure 1 shown, a loading slot 7 is provided in the carrier 6.

[0042] The loading slot 7 can place the plate.

[0043] Exemplarily, as Figure 5 shown, the first robotic arm 3, the second robotic arm 4 and the loading head 5 can all rotate.

[0044] By using the freely rotatable first robotic arm 3, second robotic arm 4 and loading head 5, it is convenient to pick up the plate, and the multi-angle rotation can enhance the adaptability of the device to various processing environments.

[0045] Finally, as Figure 5 shown, the loading head 5 can identify the circuit board.

[0046] The loading head 5 can load the identified circuit board.

[0047] Working principle: When the utility model is in use, first, the pulling block 97 can be pulled to move the pin 94. Then, the bolt 92 is rotated. Through the threaded movement of the bolt 92 and the threaded hole 91, the bolt 92 enters the threaded hole 91. At this time, the mounting plate 8 can be limited to complete the installation of the CCD camera body 10. And during the process of the pulling block 97 driving the pin 94 to move, the pulling block 97 stretches the spring 96 mutually, causing the spring 96 to generate elastic force. Then, under the elastic force of the spring 96, the pulling block 97 can be driven to move back to its original position, and further drive the pin 94 fixed on the pulling block 97 to move back to its original position, so that the pin 94 moves and slides into the annular groove 93 opened in the bolt 92 to limit the bolt 92, preventing the bolt 92 from loosening after long-term use and resulting in the loosening of the installation of the CCD camera body 10. Two CCD camera bodies 10 can grab the positions of the two side edges of the device to accurately position the product. When discharging, the first robotic arm 3, the second robotic arm 4 and the loading head 5 first take the plate from the vertical fixture, and then move it above the receiving carrier 6. At this time, the CCD camera body 10 above the plate receiving machine will inspect the positions of the two plate corners, and compare the position information with the position coordinates of the carrier 6 set in the robotic arm program, and automatically adjust the coordinate position of the arm to accurately place the plate on the carrier 6; when loading, the CCD camera body 10 first confirms the accurate position of the plate on the carrier 6, and then compares the position information with the position set in the robotic arm program. The arm makes actions such as rotation and movement according to the comparison result to accurately grab the plate, and finally transfers the plate to the vertical line fixture according to the position set by the program.

[0048] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit board loading and unloading device, comprising a base (1), characterized in that: It also includes a first mechanical arm (3), a second mechanical arm (4), a loading head (5), a carrier (6); a mounting mechanism (9) and a CCD camera body (10); the upper end of the base (1) is fixedly connected to the pedestal (2), the pedestal (2) is provided with a first mechanical arm (3), the first mechanical arm (3) is provided with a second mechanical arm (4), the second mechanical arm (4) is provided with a loading head (5), the upper end of the base (1) is fixedly connected to the carrier (6), the upper end of the carrier (6) is in contact with a mounting plate (8), and the mounting plate (8) is provided with a mounting mechanism (9) capable of fixing the CCD camera body (10).

2. A circuit board loading and unloading device according to claim 1, characterized in that: The mounting mechanism (9) comprises a screw hole (91), a bolt (92), an annular groove (93), a bayonet (94), a fixing ring (95), a spring (96), and a pull block (97). The upper end of the carrier (6) is provided with a screw hole (91), a bolt (92) is threadedly connected to the screw hole (91), an annular groove (93) is provided in the bolt (92), a bayonet (94) is slidably connected to the annular groove (93), a fixing ring (95) is fixedly connected to the mounting plate (8), a pull block (97) is contacted on the side of the mounting plate (8), and a spring (96) is sleeved on the outer side of the bayonet (94).

3. A circuit board loading and unloading device according to claim 2, characterized in that: The number of the bolts (92) is four, and the four bolts (92) are rotatably connected in a group of two inside the mounting plate (8).

4. A circuit board loading and unloading device according to claim 2, characterized in that: One end of the spring (96) is fixedly connected to the fixing ring (95), and the other end of the spring (96) is fixedly connected to the fixing ring (95).

5. A circuit board loading and unloading device according to claim 2, characterized in that: A pull block (97) is fixedly connected to the bayonet pin (94), the bayonet pin (94) is slidably connected to the inside of the fixing ring (95), and the bayonet pin (94) is slidably connected to the inside of the mounting plate (8).

6. A circuit board loading and unloading device according to claim 1, characterized in that: The upper end of the mounting plate (8) is fixedly connected to a CCD camera body (10).

7. A circuit board loading and unloading device according to claim 1, characterized in that: The number of the CCD camera bodies (10) is two, and the two CCD camera bodies (10) are symmetrically distributed on the carrier (6).

8. A circuit board loading and unloading device according to claim 1, characterized in that: The carrier (6) is provided with a loading slot (7).

9. A circuit board loading and unloading device according to claim 1, characterized in that: The first mechanical arm (3), the second mechanical arm (4) and the loading head (5) are all rotatable.

10. The circuit board loading and unloading device according to claim 1, characterized in that: The loading head (5) can identify the circuit board.

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