PCB (Printed Circuit Board) transfer machine

Abstract

The utility model discloses a PCB (Printed Circuit Board) transfer machine, which comprises a rack, a first moving device, a clamping mechanism and a control device, and is characterized in that the rack is provided with a feeding station and a discharging station; the first moving device is arranged between the feeding station and the discharging station; the clamping mechanism comprises a bottom plate, two supporting plates installed on the bottom plate, a first clamping device, a first lifting device and a second lifting device, the bottom plate is installed on the first moving device, the opposite side faces of the two supporting plates are provided with supporting parts used for supporting the edge of the PCB in a protruding mode, the first clamping device is arranged on the two supporting plates, and the second clamping device is arranged on the first lifting device. The first lifting device and the second lifting device are located between the two supporting plates and arranged in the front-back direction, the first lifting device is provided with a first positioning plate, and the second lifting device is provided with a second positioning plate. The PCB transfer machine provided by the utility model can be used as a special PCB transfer device in the PCB silk-screen printing industry to complete the work of fast loading and accurate positioning transfer of the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB screen printing, in particular to a PCB board transfer machine. Background Art

[0002] At present, in the PCB screen printing industry, PCB boards are generally transported between two adjacent processes through belt conveyors. For example, PCB boards that have been screen printed by screen printing equipment are transported to a tunnel furnace for baking through belt conveyors. However, belt conveyors can only perform relatively simple transportation tasks and are not very competent for PCB board transportation tasks. For example, belt conveyors cannot position PCB boards, and relative movement between belt conveyors and PCB boards is likely to occur, making it impossible to accurately transport PCB boards to designated locations. Therefore, the current PCB screen printing industry requires a special PCB board transfer device. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a PCB board transfer machine, which can be used as a special PCB board transfer equipment in the PCB board screen printing industry to complete the work of rapid loading and precise positioning and transfer of PCB boards, contributing to the realization of automated operations in factories and promoting the development of the industry.

[0004] The PCB board transfer machine according to the embodiment of the utility model comprises a frame, a first moving device, a clamping mechanism and a control device, the frame is provided with a loading station and a discharging station; the first moving device is arranged between the loading station and the discharging station; the clamping mechanism comprises a bottom plate, two supporting plates installed on the bottom plate, a first clamping device, a first lifting device and a second lifting device, the bottom plate is installed on the first moving device, the two supporting plates are arranged opposite to each other in the left and right directions, and a supporting portion for supporting the edge of the PCB board is protruded on one side of the two supporting plates opposite to each other, and the first clamping device is arranged on the two supporting plates, and the first clamping device is used to locate and clamp the edge of the PCB board, and the first lifting device and the second lifting device are both located between the two supporting plates and arranged in the front-back direction. The first lifting device is equipped with a first positioning plate for positioning the edge of the PCB board, and the second lifting device is equipped with a second positioning plate for positioning the edge of the PCB board, wherein the first moving device can drive the clamping mechanism to move between the loading station and the unloading station, the first lifting device can lift the first positioning plate, and the second lifting device can lift the second positioning plate; the control device is arranged on the frame, and the control device is electrically connected with a PCB position detection device and a PCB sensing device, the PCB position detection device is arranged at the unloading station, and the PCB sensing device is arranged at the clamping mechanism or the loading station, and the control device is electrically connected to the first moving device, the first clamping device, the first lifting device and the second lifting device.

[0005] According to some embodiments of the utility model, the two support plates can be slidably installed on the base plate left and right, and a second moving device for driving the support plates to move is provided on the base plate. The first lifting device and the second lifting device can be slidably installed on the base plate forward and backward, and a third moving device is provided on the base plate. The third moving device can drive the first lifting device to move forward and backward, and the third moving device can drive the second lifting device to move forward and backward.

[0006] According to some embodiments of the utility model, the second moving device includes a motor and two screws, the motor is installed on the base plate, the output shaft of the motor is connected to the two screws in sequence and the rotation axes of the three coincide, the thread rotation directions of the two screws are opposite, and the two support plates are connected with nuts, and the two nuts are threadedly connected to the two screws one by one.

[0007] According to some embodiments of the present utility model, a second clamping device for clamping the edge of the PCB board is installed on the first positioning plate, and a third clamping device for clamping the edge of the PCB board is installed on the second positioning plate.

[0008] According to some embodiments of the present invention, the first clamping device, the second clamping device and the third clamping device each include a clamping cylinder, a mounting seat and two material claws, and the clamping cylinder is mounted on the mounting seat.

[0009] According to some embodiments of the present invention, the supporting portion has a horizontal supporting surface for supporting an edge of the PCB board, and the width of the horizontal supporting surface in the left-right direction is less than 10 mm.

[0010] According to some embodiments of the utility model, the supporting portion has a guide surface and a transition surface, the guide surface is a curved surface or an inclined surface, the transition surface is a curved surface or an inclined surface, and the guide surface, the horizontal supporting surface and the transition surface are distributed up and down and connected in sequence.

[0011] According to some embodiments of the present invention, the first positioning plate and the second positioning plate both have a vertical positioning surface and a supporting surface, the supporting surface is located below the vertical positioning surface and protrudes relative to the vertical positioning surface, and the supporting surface is configured as an inclined surface or an arc surface.

[0012] According to some embodiments of the present invention, the PCB position detection device includes a camera.

[0013] According to some embodiments of the utility model, the frame is provided with a crossbeam above the discharging station, a mobile platform is installed on the crossbeam, the camera is installed on the mobile platform, and the mobile platform can drive the camera to move and adjust the position in the front-back direction and the left-right direction. The camera can be accurately adjusted to the specified position through the mobile platform.

[0014] The PCB board transfer machine provided by the utility model has at least the following beneficial effects:

[0015] (1) During the PCB board transfer process, the first moving device moves the clamping mechanism to the loading station. At this time, the clamping mechanism can receive the PCB board from the previous process. During the receiving process, the first positioning plate or the second positioning plate is lowered to avoid the PCB board. The supporting parts on the two pallets support and preliminarily position the PCB board. After the control device detects that the PCB board enters the clamping mechanism through the PCB sensing device, the control device controls the first clamping devices on the two pallets to position and clamp the left and right ends of the PCB board respectively, and controls the first lifting device or the second lifting device to lift the first positioning plate or the second positioning plate. The front and rear ends of the PCB board are positioned, thereby realizing the clamping and positioning of the PCB board by the clamping mechanism, and then the control device controls the first moving device to drive the clamping mechanism to quickly move to the discharge station, and the control device positions the PCB board on the clamping mechanism through the PCB position detection device, thereby controlling the first moving device to accurately transport the PCB board on the clamping mechanism to the discharge station. Therefore, the PCB board transfer machine provided by the utility model can be used as a special PCB board transfer equipment in the PCB board screen printing industry, completing the work of rapid loading and accurate positioning and transfer of PCB boards, contributing to the realization of automated operations in factories and promoting the development of the industry;

[0016] (2) The positions of the two support plates can be adjusted left and right by the second moving device, and the positions of the first positioning plate and the second positioning plate can be adjusted front and back by the third moving device. Thus, the clamping mechanism can be suitable for clamping PCB boards of different sizes;

[0017] (3) The second clamping device on the first positioning plate and the third clamping device on the second positioning plate can clamp and position the edge of the PCB board, and while achieving accurate positioning of the PCB board, can also prevent the middle of the PCB board from bending downward under its own gravity, thereby ensuring the shape of the PCB board;

[0018] (4) The clamping mechanism only contacts the edge of the PCB board, and the clamping mechanism and the PCB board are relatively fixed, which can effectively prevent the clamping mechanism from scratching the pattern on the PCB board and protect the PCB board.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 A schematic diagram of a PCB board transfer machine according to an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of a clamping mechanism of a PCB board transfer machine is shown;

[0023] Figure 3 for Figure 1 A front schematic diagram of a clamping mechanism of a PCB board transfer machine (when a PCB board is loaded);

[0024] Figure 4 for Figure 1 An exploded view of a clamping mechanism of a PCB board transfer machine is shown;

[0025] Figure 5 for Figure 1 A schematic diagram of a first lifting device and a first positioning plate of a clamping mechanism of a PCB board transfer machine is shown;

[0026] Figure 6 for Figure 2 The enlarged view of point A in the middle;

[0027] Figure 7 for Figure 1 A schematic diagram of a mobile platform of a PCB board transfer machine is shown.

[0028] Reference numerals:

[0029] Frame 100, beam 110, first moving device 200, clamping mechanism 300, bottom plate 310, support plate 320, supporting part 321, horizontal supporting surface 3211, guide surface 3212, transition surface 3213, first lifting device 330, second lifting device 340, first positioning plate 350, vertical positioning surface 351, supporting surface 352, second positioning plate 360, second moving device 370, motor 371 and two screws 372, nut 373, third moving device 380, first clamping device 390a, second clamping device 390b, third clamping device 390c, clamping cylinder 391, mounting seat 392, material claw 393, control device 410, PCB position detection device 420, PCB sensing device, moving platform 500, left and right moving device 510, front and back moving device 520, PCB board 600. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 3According to an embodiment of the utility model, the PCB board transfer machine includes a frame 100, a first moving device 200, a clamping mechanism 300 and a control device 410. The frame 100 is provided with a loading station and a discharging station; the first moving device 200 is arranged between the loading station and the discharging station; the clamping mechanism 300 includes a bottom plate 310, two support plates 320 installed on the bottom plate 310, a first clamping device 390a, a first lifting device 330 and a second lifting device 340, the bottom plate 310 is installed on the first moving device 200, the two support plates 320 are arranged opposite to each other in the left and right directions, and a supporting portion 321 for supporting the edge of the PCB board 600 is protruded on one side of the two support plates 320. The first clamping device 390a is provided on the two support plates 320, and the first clamping device 390a is used to position and clamp the edge of the PCB board 600. The first lifting device 330 and the second lifting device 340 are both located on the two support plates 3 20 and arranged along the front-to-back direction, the first lifting device 330 is installed with a first positioning plate 350 for positioning the edge of the PCB board 600, and the second lifting device 340 is installed with a second positioning plate 360 ​​for positioning the edge of the PCB board 600, wherein the first moving device 200 can drive the clamping mechanism 300 to move between the loading station and the unloading station, the first lifting device 330 can lift the first positioning plate 350, and the second lifting device 340 can lift the second positioning plate 360; the control device 410 is arranged on the frame 100, and the control device 410 is electrically connected with a PCB position detection device 420 and a PCB sensing device, the PCB position detection device 420 is arranged at the unloading station, and the PCB sensing device is arranged at the clamping mechanism 300 or the loading station, and the control device 410 is electrically connected to the first moving device 200, the first clamping device 390a, the first lifting device 330 and the second lifting device 340.

[0035] During the process of the PCB board transfer machine transferring the PCB board 600, the first moving device 200 moves the clamping mechanism 300 to the loading station. At this time, the clamping mechanism 300 can receive the PCB board 600 from the previous process. During the process of receiving the PCB board 600, the first positioning plate 350 or the second positioning plate 360 ​​is lowered to avoid the PCB board 600, and the supporting parts 321 on the two pallets 320 support and preliminarily position the PCB board 600, so that the PCB board 600 can smoothly enter the clamping mechanism 300. Then, after the control device 410 detects that the PCB board 600 enters the clamping mechanism 300 through the PCB sensing device, the control device 410 controls the first clamping devices 390a on the two pallets 320 to position and clamp the left and right ends of the PCB board 600 respectively, and controls the first lifting device 330 or the second lifting device 330 to lift and lower the PCB board 600. The device 340 raises the first positioning plate 350 or the second positioning plate 360 ​​to position the front and rear ends of the PCB board 600, thereby realizing the clamping mechanism 300 to clamp and position the PCB board 600, and then the control device 410 controls the first moving device 200 to drive the clamping mechanism 300 to move quickly to the unloading station, and the control device 410 positions the PCB board 600 on the clamping mechanism 300 through the PCB position detection device 420, thereby controlling the first moving device 200 to accurately transport the PCB board 600 on the clamping mechanism 300 to the unloading station. Therefore, the PCB board transfer machine provided by the utility model can be used as a special PCB board 600 transfer equipment in the PCB board screen printing industry, to complete the work of rapid loading and precise positioning and transfer of the PCB board 600, to contribute to the realization of automated operations in factories and to promote the development of the industry.

[0036] Reference Figure 3 In the specific implementation process, when the clamping mechanism 300 receives the PCB board 600 coming in from the previous process, if the PCB board 600 comes in from the first positioning plate 350, the first positioning plate 350 is lowered to avoid the PCB board 600, and the second positioning plate 360 ​​is used to limit the incoming PCB board 600; if the PCB board 600 comes in from the second positioning plate 360, the second positioning plate 360 ​​is lowered to avoid the PCB board 600, and the first positioning plate 350 is used to limit the incoming PCB board 600, thereby, the incoming PCB board 600 can reach the accurate position so that the first clamping device 390a can accurately clamp the PCB board 600.

[0037] Reference Figure 2 and Figure 4According to some embodiments of the utility model, both the two pallets 320 can be slidably mounted on the bottom plate 310, a second moving device 370 for driving the pallets 320 to move is provided on the bottom plate 310, the first lifting device 330 and the second lifting device 340 can be slidably mounted on the bottom plate 310 forward and backward, a third moving device 380 is provided on the bottom plate 310, the third moving device 380 can drive the first lifting device 330 to move forward and backward, and the third moving device 380 can drive the second lifting device 340 to move forward and backward. Therefore, the positions of the two pallets 320 can be adjusted left and right by the second moving device 370, and the positions of the first positioning plate 350 and the second positioning plate 360 ​​can also be adjusted forward and backward by the third moving device 380, thereby, the clamping mechanism 300 can be suitable for clamping PCB boards 600 of different sizes.

[0038] Reference Figures 2 to 4 According to some embodiments of the present invention, the second moving device 370 includes a motor 371 and two screw rods 372. The motor 371 is mounted on the bottom plate 310. The output shaft of the motor 371 and the two screw rods 372 are sequentially connected and the rotation axes of the three coincide. The threads of the two screw rods 372 are in opposite directions. The two support plates 320 are both connected with nuts 373, and the two nuts 373 are screwed with the two screw rods 372 in a one-to-one correspondence. With the above arrangement, the second moving device 370 can accurately move the positions of the two support plates 320 left and right to ensure that the supporting parts 321 and the first clamping device 390a on the two support plates 320 can accurately position the PCB board 600.

[0039] Of course, it is conceivable that in other embodiments, the second moving device 370 may also be arranged in other ways. For example, the second moving device 370 may use a high-precision cylinder to push the support plate 320 to move precisely.

[0040] In the specific implementation process, the configuration of the first mobile device 200 and the third mobile device 380 may refer to the configuration of the second mobile device 370 , which will not be described in detail herein.

[0041] Reference Figure 2 and Figure 5 According to some embodiments of the present invention, a second clamping device 390b for clamping the edge of the PCB board 600 is installed on the first positioning plate 350, and a third clamping device 390c for clamping the edge of the PCB board 600 is installed on the second positioning plate 360. Therefore, the second clamping device 390b on the first positioning plate 350 and the third clamping device 390c on the second positioning plate 360 ​​can clamp and position the edge of the PCB board 600, and while achieving accurate positioning of the PCB board 600, it can also prevent the middle part of the PCB board 600 from bending downward under its own gravity, thereby ensuring the shape of the PCB board 600.

[0042] Reference Figure 6 According to some embodiments of the utility model, the first clamping device 390a, the second clamping device 390b and the third clamping device 390c all include a clamping cylinder 391, a mounting seat 392 and two material claws 393. The clamping cylinder 391 is installed on the mounting seat 392, so that the clamping cylinder 391 can drive the two material claws 393 to rotate relatively, close together or open, so as to clamp the PCB board 600 or release the PCB board 600. When the clamping mechanism 300 receives the PCB board 600 from the previous process, the two material claws 393 of the first clamping device 390a and the two material claws 393 of the second clamping device 390b are relatively opened to avoid the PCB board 600, so that the PCB board 600 can smoothly enter the clamping mechanism 300.

[0043] It is conceivable that the first clamping device 390a may be arranged in other ways. For example, the first clamping device 390a may be provided with two clamping cylinders 391, and the two clamping cylinders 391 drive the corresponding two material claws 393 to rotate one by one, thereby realizing the relative rotation and opening or closing of the corresponding two material claws 393.

[0044] Reference Figure 2 and Figure 3 According to some embodiments of the present invention, the supporting portion 321 has a horizontal supporting surface 3211 for supporting the edge of the PCB board 600, and the width of the horizontal supporting surface 3211 in the left-right direction is less than 10 mm. Therefore, the contact width between the supporting portion 321 and the PCB board 600 is less than 10 mm. After the first clamping device 390a clamps and fixes the PCB board 600, the PCB board 600 is fixed relative to the supporting portion 321, which can effectively prevent the clamping mechanism 300 from scratching the pattern on the PCB board 600, thereby protecting the PCB board 600.

[0045] Reference Figure 2 and Figure 3 According to some embodiments of the utility model, the supporting portion 321 has a guide surface 3212 and a transition surface 3213, the guide surface 3212 is a curved surface or an inclined surface, the transition surface 3213 is a curved surface or an inclined surface, the guide surface 3212, the horizontal support surface 3211 and the transition surface 3213 are distributed up and down and connected in sequence. In the process of the clamping mechanism 300 receiving the PCB board 600, the guide surface 3212 can guide the PCB board 600 to be accurately supported by the supporting surface 352 on the supporting portion 321 to achieve positioning, and the setting of the transition surface 3213 makes the strength of the supporting portion 321 higher, and to a certain extent avoids the situation that the PCB board 600 falls.

[0046] Reference Figure 2 and Figure 5According to some embodiments of the present invention, the first positioning plate 350 and the second positioning plate 360 ​​both have a vertical positioning surface 351 and a supporting surface 352, the supporting surface 352 is located at the lower side of the vertical positioning surface 351 and protrudes relative to the vertical positioning surface 351, and the supporting surface 352 is set to an inclined surface or an arc surface. Therefore, in the process of the clamping mechanism 300 receiving the PCB board 600, the supporting surface 352 can support and lift the edge of the PCB board 600, thereby preventing the PCB board 600 from bending downward in the middle under its own gravity, thereby ensuring that the first positioning plate 350 and the second positioning plate 360 ​​can accurately position the edge of the PCB board 600 through the vertical positioning surface 351, wherein the first supporting surface 352 is an inclined surface or an arc surface, which can reduce the contact area between the first positioning plate 350, the second positioning plate 360 ​​and the PCB board 600, and effectively avoid the first positioning plate 350 and the second positioning plate 360 ​​from scratching the pattern on the PCB board 600.

[0047] During the process of transferring the PCB board 600 by the belt conveyor, it is easy for the belt conveyor to scrape off the pattern on the PCB board 600. Therefore, the belt conveyor is usually only suitable for transferring the PCB board 600 with single-side printing. In the present utility model, through the above-mentioned configuration, the clamping mechanism 300 only contacts the edge of the PCB board 600, and the clamping mechanism 300 and the PCB board 600 are relatively fixed, which can effectively prevent the clamping mechanism 300 from scraping off the pattern on the PCB board 600 and protect the PCB board 600. Therefore, the clamping mechanism 300 can be suitable for clamping the PCB board 600 with single-side printing or double-side printing.

[0048] Reference Figure 1 and Figure 7 According to some embodiments of the present invention, the PCB position detection device 420 includes a camera, so that the control device 410 can use the camera to take a picture and locate the PCB board 600 on the clamping mechanism 300. In addition, the image obtained by the camera can also be displayed to the staff through a display screen so that the staff can control the on-site situation at any time.

[0049] Reference Figure 1 and Figure 7 According to some embodiments of the present invention, the frame 100 is provided with a crossbeam 110 above the discharging station, a mobile platform 500 is installed on the crossbeam 110, and the camera is installed on the mobile platform 500. The mobile platform 500 can drive the camera to move along the front-back direction and the left-right direction to adjust the position. Through the mobile platform 500, the camera can be accurately adjusted to the specified position.

[0050] Reference Figure 1 and Figure 7In a specific implementation process, the mobile platform 500 may include a left-right moving device 510 and a front-back moving device 520. The left-right moving device 510 is mounted on the front-back moving device 520, and the camera is mounted on the left-right moving device 510. Alternatively, the front-back moving device 520 is mounted on the left-right moving device 510, and the camera is mounted on the front-back moving device 520. The left-right moving device 510 and the front-back moving device 520 may refer to the arrangement of the second moving device 370, and will not be described in detail herein.

[0051] It is conceivable that the above-mentioned PCB position detection device 420 may also be arranged in other ways. For example, the PCB position detection device 420 may include an infrared detection switch or other types of optical detection switches.

[0052] It is conceivable that, in a specific implementation, the PCB sensing device may include an infrared sensing device, or the PCB sensing device may also include a contact sensing switch.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A PCB board transfer machine, characterized in that: include: The frame (100) is provided with a loading station and a discharging station; A first moving device (200) is arranged between the loading station and the unloading station; The clamping mechanism (300) comprises a base plate (310), two supporting plates (320) mounted on the base plate (310), a first clamping device (390a), a first lifting device (330) and a second lifting device (340), wherein the base plate (310) is mounted on the first moving device (200), the two supporting plates (320) are arranged opposite to each other in the left-right direction, a supporting portion (321) for supporting the edge of a PCB board (600) is protruded from opposite sides of the two supporting plates (320), the first clamping device (390a) is used to locate and clamp the edge of the PCB board (600), and the first lifting device (330) is used to lift the first lifting device (340). The first lifting device (330) and the second lifting device (340) are both located between the two support plates (320) and arranged in the front-to-back direction, the first lifting device (330) is installed with a first positioning plate (350) for positioning the edge of the PCB board (600), and the second lifting device (340) is installed with a second positioning plate (360) for positioning the edge of the PCB board (600), wherein the first moving device (200) can drive the clamping mechanism (300) to move between the loading station and the unloading station, the first lifting device (330) can lift the first positioning plate (350), and the second lifting device (340) can lift the second positioning plate (360); A control device (410), wherein the control device (410) is arranged on the frame (100), and the control device (410) is electrically connected to a PCB position detection device (420) and a PCB sensing device, wherein the PCB position detection device (420) is arranged at the unloading station, and the PCB sensing device is arranged at the clamping mechanism (300) or the loading station, and the control device (410) is electrically connected to the first moving device (200), the first clamping device (390a), the first lifting device (330) and the second lifting device (340).

2. A PCB board transfer machine according to claim 1, characterized in that: The two support plates (320) can be installed on the base plate (310) in a slidable manner to the left and right, and a second moving device (370) for driving the support plates (320) to move is arranged on the base plate (310). The first lifting device (330) and the second lifting device (340) can be installed on the base plate (310) in a slidable manner to the front and back. A third moving device (380) is arranged on the base plate (310), and the third moving device (380) can drive the first lifting device (330) to move forward and backward, and the third moving device (380) can drive the second lifting device (340) to move forward and backward.

3. A PCB board transfer machine according to claim 2, characterized in that: The second moving device (370) comprises a motor (371) and two screw rods (372). The motor (371) is mounted on the base plate (310). The output shaft of the motor (371) and the two screw rods (372) are connected in sequence and the rotation axes of the three coincide. The threads of the two screw rods (372) have opposite rotation directions. Both of the two support plates (320) are connected with nuts (373). The two nuts (373) are threadedly connected to the two screw rods (372) in a one-to-one correspondence.

4. The PCB board transfer machine according to claim 1, characterized in that: A second clamping device (390b) for clamping the edge of the PCB board (600) is installed on the first positioning plate (350), and a third clamping device (390c) for clamping the edge of the PCB board (600) is installed on the second positioning plate (360).

5. A PCB board transfer machine according to claim 4, characterized in that: The first clamping device (390a), the second clamping device (390b) and the third clamping device (390c) each include a clamping cylinder (391), a mounting seat (392) and two material claws (393), and the clamping cylinder (391) is mounted on the mounting seat (392).

6. The PCB board transfer machine according to claim 1, characterized in that: The supporting portion (321) has a horizontal supporting surface (3211) for supporting the edge of the PCB board (600), and the width of the horizontal supporting surface (3211) in the left-right direction is less than 10 mm.

7. The PCB board transfer machine according to claim 6, characterized in that: The supporting portion (321) has a guide surface (3212) and a transition surface (3213), the guide surface (3212) is a curved surface or an inclined surface, the transition surface (3213) is a curved surface or an inclined surface, and the guide surface (3212), the horizontal supporting surface (3211) and the transition surface (3213) are distributed up and down and are connected in sequence.

8. The PCB board transfer machine according to claim 1, characterized in that: The first positioning plate (350) and the second positioning plate (360) both have a vertical positioning surface (351) and a supporting surface (352), wherein the supporting surface (352) is located at the lower side of the vertical positioning surface (351) and protrudes relative to the vertical positioning surface (351), and the supporting surface (352) is configured as an inclined surface or an arc surface.

9. The PCB board transfer machine according to claim 1, characterized in that: The PCB position detection device (420) comprises a camera.

10. The PCB board transfer machine according to claim 9, characterized in that: The frame (100) is provided with a crossbeam (110) above the discharging station, a movable platform (500) is installed on the crossbeam (110), the camera is installed on the movable platform (500), and the movable platform (500) can drive the camera to move along the front-back direction and the left-right direction to adjust the position.

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