PCB automatic production and processing system

Abstract

The invention relates to the technical field of PCB processing and manufacturing, and particularly provides an automatic production and processing system for PCBs. Comprising a working table, an adsorption fixing table used for horizontally adsorbing and fixing a PCB is assembled on the working table, a displacement rack providing horizontal and vertical displacement driving is assembled on the working table, and a mechanical arm for grabbing the PCB is assembled at the moving end of the displacement rack; the system provided by the invention can be applied to the existing PCB processing equipment which does not support double-sided synchronous processing, and on the basis of ensuring the turn-over positioning precision in the double-sided surface-changing processing process of the PCB, a turn-over mechanism and a corresponding positioning correction structure do not need to be additionally assembled, so that the assembly of the equipment is greatly simplified, the equipment cost is reduced, and the production efficiency is improved. And the equipment is convenient to overhaul and maintain.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board processing and manufacturing, and specifically proposes an automatic production and processing system for PCB boards. Background Art

[0002] PCB board is a board used to support and connect electronic components. In the production process of PCB board, a series of processing operations such as drilling, electroplating, etching, printing, etc. are required. Among them, double-sided PCB board also needs to be processed on both sides of the board. In PCB board processing equipment that does not support double-sided simultaneous processing, it is usually necessary to assemble a corresponding flipping mechanism for flipping and switching the PCB board. However, during the flipping process, especially for the flipping of flexible PCB boards, problems such as processing position deviation are prone to occur after flipping, thereby affecting the processing accuracy of the PCB board and even causing the product to be scrapped. Some processing equipment is also equipped with a positioning structure or an automatic correction mechanism in conjunction with the flipping mechanism to ensure the position accuracy of the PCB board after flipping.

[0003] In summary, in PCB processing equipment that does not support double-sided simultaneous processing, the PCB board is automatically turned over by a specially set flipping mechanism, and the flipping positioning is performed by setting a positioning structure or an automatic correction mechanism, which increases the complexity and maintenance difficulty of the equipment and also increases the overall cost of the equipment. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an automated production and processing system for PCB boards, which is used to solve the problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a PCB board automated production and processing system, including a workbench, on which is equipped an adsorption fixing table for horizontally adsorbing and fixing the PCB board, on which is equipped a displacement rack providing horizontal and vertical displacement drive, and the movable end of the displacement rack is equipped with a manipulator for grabbing the PCB board.

[0006] The adsorption fixing table includes a main suction cup and two auxiliary suction cups horizontally distributed on both sides of the main suction cup. The main suction cup is fixed on the workbench, and the auxiliary suction cup is installed on the workbench with vertical elastic support; when the auxiliary suction cup is at the highest position, the upper end surface of the auxiliary suction cup is flush with the upper end surface of the main suction cup.

[0007] The manipulator includes an electric turntable which is axially arranged horizontally and fixed on the displacement end of the displacement frame, a pressure relief frame is fixed on the table top of the electric turntable, two grabbing arms are relatively slidably installed on the pressure relief frame, and the grabbing arms slide in a direction perpendicular to the axial direction of the electric turntable; the pressure relief frame is also equipped with a distance adjustment component for driving the two grabbing arms to slide relative to each other; a negative pressure suction plate for adsorbing and grabbing PCB boards is fixed on the grabbing arms.

[0008] After the grabbing arm grabs the PCB board through the negative pressure adsorption plate, when the negative pressure adsorption plate faces downward, the PCB board is simultaneously adsorbed and fixed on the main suction cup and the two auxiliary suction cups; when the electric turntable is rotated 180° so that the negative pressure adsorption plate faces upward, the two grabbing arms press down the two auxiliary suction cups one by one, and after the PCB board is pre-adsorbed and fixed by the main suction cup, the two auxiliary suction cups are subsequently adsorbed and fixed.

[0009] Preferably, two pressure rollers are horizontally rotatably installed on the side of the grabbing arm facing away from the negative pressure suction plate; two elastic supports corresponding to the two auxiliary suction cups are fixed on the workbench, and the auxiliary suction cups are fixed on the elastic supports; when the negative pressure suction plate is facing upward, the grabbing arm is pressed down into contact with the elastic supports through the two pressure rollers, and the auxiliary suction cups descend synchronously with the passive downward pressure of the elastic supports.

[0010] Preferably, the elastic support comprises a guide block fixed on the workbench, a lifting seat is mounted on the guide block in a vertical sliding manner, at least one supporting spring is fixed between the lifting seat and the workbench; the auxiliary suction cup is fixed on the lifting seat.

[0011] Preferably, the lifting seat is provided with two pressure blocks which contact with the two pressure rollers correspondingly when pressed downward, and the pressure blocks are provided with inclined surfaces beveled downward from the upper end surfaces; the inclined surfaces on the two pressure blocks located at relative positions in the two elastic supports are arranged in an "eight" shape; under the drive of the distance adjustment component, when the distance between the two grabbing arms gradually increases, the pressure rollers which are pressed against the pressure blocks roll from the upper end surfaces of the pressure blocks toward the inclined surfaces.

[0012] Preferably, a fixed seat is fixed on the workbench, and the fixed seat is located between two elastic supports. The main suction cup is fixed on the fixed seat; a height limiting plate in contact with the bottom end of the fixed seat is horizontally fixed on the lifting seat. Under the action of the elastic force of the supporting spring, when the height limiting plate contacts the bottom end of the fixed seat, the upper end surface of the auxiliary suction cup is flush with the upper end surface of the main suction cup.

[0013] Preferably, the pressure relief frame includes a rotating frame fixed on the table top of the electric turntable and rotating therewith, a plurality of guide rods are fixed on the rotating frame, the axial direction of the guide rods is vertically arranged relative to the axial direction of the electric turntable, a tail plate is slidably mounted on the plurality of guide rods, at least one buffer spring is connected between the tail plate and the rotating frame; the grabbing arm is slidably mounted on the tail plate, and the distance adjustment component is assembled on the tail plate.

[0014] Preferably, the side edges of the auxiliary suction cup and the main suction cup are in close contact.

[0015] Preferably, a slide rail extending vertically relative to the axial direction of the electric turntable is provided on the tail plate, and the grabbing arm is slidably installed on the slide rail. The distance adjustment assembly includes a driving motor fixed at one end of the slide rail and a bidirectional lead screw fixed on the output shaft of the driving motor. The bidirectional lead screw is rotatably installed in the slide rail, and the two grabbing arms are threadedly connected to the two threaded sections of the bidirectional lead screw in a one-to-one manner.

[0016] Preferably, the displacement frame includes a horizontal guide rail supported and fixed on the workbench, a transverse frame is slidably mounted along the horizontal guide rail, a lifting assembly is mounted on the transverse frame, and the electric turntable is fixed to the lifting end of the lifting assembly.

[0017] Preferably, the lifting assembly includes a lifting slider arranged for lifting drive, and the lifting slider is vertically slidably mounted on the transverse frame; the electric turntable is fixed on the lifting slider.

[0018] The above technical scheme has the following advantages or beneficial effects: the present invention provides an automated production and processing system for PCB boards, which is provided with a manipulator for grabbing and actively flipping PCB boards, and an adsorption and fixing table for processing and fixing PCB boards is provided in cooperation with the manipulator, and the overall adsorption and fixing surface of the adsorption and fixing table is composed of a main suction cup and auxiliary suction cups distributed on both sides. When the PCB board is placed by the manipulator, the PCB board can always be completely fitted with the overall adsorption and fixing surface of the adsorption and fixing table regardless of whether it is turned over or not, and the adsorption and fixing switching of the PCB board between the manipulator and the adsorption and fixing table is realized during the placement process, thereby avoiding the movement and dislocation of the processing and placement position; the system provided by the present invention can be applied to existing PCB board processing equipment that does not support double-sided synchronous processing, and on the basis of ensuring the flipping positioning accuracy during the double-sided face-changing processing of the PCB board, there is no need to additionally assemble a flipping mechanism and a corresponding positioning correction structure, which greatly simplifies the assembly of the equipment, reduces the equipment cost, and facilitates the inspection and maintenance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention and its features, configurations and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts throughout the drawings, which are not drawn to scale, with emphasis on illustrating the subject matter of the present invention.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a PCB board automated production and processing system provided by the present invention.

[0021] Figure 2 It is a front view of a PCB board automatic production and processing system provided by the present invention.

[0022] Figure 3 It is a side view of a PCB board automated production and processing system provided by the present invention.

[0023] Figure 4 It is a three-dimensional structural diagram of the adsorption fixing table.

[0024] Figure 5 It is a three-dimensional structural diagram of the assembly of the auxiliary suction cup and the elastic support.

[0025] Figure 6 It is a three-dimensional structure diagram of the robot.

[0026] In the figure: 1, workbench; 2, adsorption fixed table; 21, fixed seat; 22, main suction cup; 23, elastic support; 231, guide block; 232, lifting seat; 233, pressure block; 2331, inclined plane; 234, height limit plate; 235, support spring; 24, auxiliary suction cup; 3, displacement rack; 31, horizontal guide rail; 32, transverse frame; 321, vertical slide rail; 33, lifting assembly; 331, lifting assembly Lowering cylinder; 332, connecting plate; 333, vertical rod; 334, lifting slider; 4, manipulator; 41, electric turntable; 42, pressure relief frame; 421, rotating frame; 422, guide rod; 423, buffer spring; 424, tail plate; 425, slide rail; 43, grabbing arm; 431, negative pressure suction plate; 432, pressure roller; 44, distance adjustment component; 441, driving motor; 442, bidirectional screw. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figure 1 As shown, a PCB board automated production and processing system includes a workbench 1, on which is mounted an adsorption fixing table 2 for horizontally adsorbing and fixing the PCB board, on which is mounted a displacement rack 3 for providing horizontal and vertical displacement drive, and on which is mounted a manipulator 4 for grabbing the PCB board at the moving end of the displacement rack 3. It should be noted that the PCB board described in the present invention specifically refers to a flexible PCB board, and the system should also include an existing processing actuator for drilling, electroplating or printing on the PCB board to perform corresponding processing.

[0030] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the adsorption fixed table 2 includes a main suction cup 22 and two auxiliary suction cups 24 horizontally distributed on both sides of the main suction cup 22, the main suction cup 22 is fixed on the workbench 1 through a fixing seat 21, and the main suction cup 22 is fixed to the top of the fixing seat 21 by screws; the auxiliary suction cup 24 is installed on the workbench 1 through an elastic support 23, the two elastic supports 23 are horizontally symmetrically arranged, and the fixing seat 21 is located between the two elastic supports 23; the elastic support 23 includes a guide block 231 welded on the workbench 1, and a lifting seat 232 is vertically slidably mounted on the guide block 231, and two supporting springs 235 are welded between the lifting seat 232 and the workbench 1; the auxiliary suction cup 24 is fixed to the lifting seat 232 by screws. A height limiting plate 234 in contact with the bottom of the fixed seat 21 is welded horizontally on the lifting seat 232. Under the elastic force of the support spring 235, the auxiliary suction cup 24 is at the highest position when the height limiting plate 234 contacts the bottom of the fixed seat 21. At this time, the upper end surface of the auxiliary suction cup 24 is flush with the upper end surface of the main suction cup 22. Both the main suction cup 22 and the auxiliary suction cup 24 are existing pneumatic adsorption platforms with negative pressure adsorption holes, which are not shown in the drawings. In order to make the auxiliary suction cup 24 and the upper end surface of the main suction cup 22 flush to form a complete adsorption plane and avoid indentation on the flexible PCB board, in this embodiment, the auxiliary suction cup 24 and the main suction cup 22 are arranged with their sides in contact.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, the displacement frame 3 includes a horizontal guide rail 31 supported and fixed on the workbench 1, and a traverse frame 32 is installed along the horizontal guide rail 31 in a sliding manner. The traverse frame 32 can select a power structure such as a motor screw mechanism or a cylinder to realize traverse drive; a lifting assembly 33 is installed on the traverse frame 32, and a vertical slide rail 321 is welded on the traverse frame 32. The lifting assembly 33 includes a lifting cylinder 331 vertically fixed on the traverse frame 32 by bolts, and a lifting slider 334 is installed on the vertical slide rail 321 in a sliding manner. A vertical rod 333 is vertically welded to the top of the lifting slider 334, and a connecting plate 332 is welded between the vertical rod 333 and the telescopic rod of the lifting cylinder 331. The manipulator 4 is installed on the lifting slider 334. Through the movement of the traverse frame 32, the manipulator 4 can be moved between the material picking position, processing position and material placing position of the PCB board, and the lifting assembly 33 can drive the manipulator 4 to align with the PCB board to complete the grabbing and placing.

[0032] like Figure 2 , Figure 3 and Figure 6 As shown, the manipulator 4 includes an electric turntable 41 which is axially horizontally arranged and fixed on the lifting slider 334 by bolts. The electric turntable 41 is an existing rotary execution device, and the electric turntable 41 has a self-locking structure. When paused, the rotating end of the electric turntable 41 is locked; a pressure relief frame 42 is assembled on the electric turntable 41, and the pressure relief frame 42 includes a rotating frame 421 fixed on the surface of the electric turntable 41 by bolts and rotating therewith, and two guide rods 422 are welded on the rotating frame 421, and the two guide rods 422 are equidistantly arranged about the rotation center axis of the electric turntable 41; the guide rods 422 are axially arranged vertically relative to the axial direction of the electric turntable 41, and a tail plate 424 is slidably installed on the two guide rods 422, and the two ends of the tail plate 424 are slidably installed on the two guide rods 422. Two buffer springs 423 are welded between each plate surface and the rotating frame 421; a slide rail 425 extending axially perpendicularly to the electric turntable 41 is provided on the tail plate 424, and two grabbing arms 43 are slidably installed in the slide rail 425, and the two grabbing arms 43 are equidistantly arranged about the central axis of the electric turntable 41, and a distance adjustment component 44 for synchronously driving the two grabbing arms 43 to slide relative to each other is assembled on the slide rail 425, and the distance adjustment component 44 includes a driving motor 441 fixed to one end of the slide rail 425 by screws and a bidirectional lead screw 442 fixed to the output shaft of the driving motor 441, the bidirectional lead screw 442 is rotatably installed in the slide rail 425 through a bearing, and the two grabbing arms 43 are threadedly connected to the two threaded sections of the bidirectional lead screw 442 one by one.

[0033] like Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, a negative pressure suction plate 431 for sucking and grabbing the PCB board is welded on the grabbing arm 43, and the negative pressure suction plate 431, the main suction cup 22, and the auxiliary suction cup 24 are also pneumatic suction plates with negative pressure suction holes; two pressure rollers 432 are horizontally rotatably installed on the side of the grabbing arm 43 that is away from the negative pressure suction plate 431; two pressure blocks 233 are arranged on the lifting seat 232, which contact with the two pressure rollers 432 when pressed down, and the pressure blocks 233 are obliquely cut downward from the upper end surface to form an inclined surface 2331; the inclined surfaces 2331 on the two pressure blocks 233 located at opposite positions in the two elastic supports 23 are arranged in an "eight" shape.

[0034] In the present invention, the flexible PCB needs to be processed on both sides. During the processing, the robot 4 cooperates with the adsorption fixing table 2 to automatically turn the PCB over while grabbing and placing the PCB. The specific process is described as follows:

[0035] Through the coordination of the lateral movement of the lateral movement frame 32 and the lifting movement of the lifting assembly 33, the PCB board can be adsorbed and grabbed to the top of the adsorption fixing table 2 by the manipulator 4, and the PCB board is horizontally adsorbed between the two negative pressure suction plates 431. At this time, the negative pressure suction plates 431 are in a front-down state, and the two grab arms 43 do not interfere with the direct flat placement of the PCB board. Driven by the lifting slider 334, the manipulator 4 drives the PCB board to descend synchronously, so that the PCB board is placed as a whole on the upper end surfaces of the main suction cup 22 and the two auxiliary suction cups 24. In order to ensure that the PCB board is completely in close contact with the upper end surface of the main suction cup 22, the manipulator 4 can continue to descend a small height to relieve the pressure. The frame 42 gradually causes the two grab arms 43 to press down on the two auxiliary suction cups 24 one by one, the support spring 235 is compressed, and the auxiliary suction cups 24 drop slightly. At this time, the part of the PCB board that contacts the main suction cup 22 can be completely pressed against the main suction cup 22. Subsequently, the main suction cup 22 absorbs and fixes the PCB board, and the two negative pressure suction plates 431 immediately release the PCB board. The lifting slider 334 drives the manipulator 4 to rise, and the two auxiliary suction cups 24 begin to rise and reset. Before the buffering pressure of the pressure relief frame 42 is completely released, the two auxiliary suction cups 24 actively absorb the two sides of the PCB board, thereby completing the absorption and fixation of the entire PCB board. Then, the non-fixed surface of the PCB board can be processed.

[0036] When the processing on one side of the PCB board is completed, the lifting slider 334 drives the manipulator 4 to descend again, and adsorbs and fixes the two negative pressure suction plates 431 on the previously adsorbed and fixed positions on the PCB board. Subsequently, the main suction cup 22 and the auxiliary suction cup 24 simultaneously release the adsorption of the PCB board, and the manipulator 4 grabs the PCB board and rises to a certain height. Then the electric turntable 41 drives the manipulator 4 to flip 180 degrees, and the PCB board is automatically turned over. At this time, the negative pressure suction plate 431 is in a front-facing state, and the grabbing arm 43 is located below the PCB board. The two grabbing arms 43 interfere with the direct flat placement of the PCB board. When the lifting slider 334 drives the manipulator 4 to descend for material discharge, the two pressure rollers 432 on the grabbing arm 43 will be pre-pressed on the two pressure blocks 233. As the pressure is pressed down, the auxiliary suction cup 24 drops synchronously with the lifting seat 232, and then the auxiliary suction cup 24 avoids the grabbing arm 43. The middle part of the PCB board can be directly attached to the main suction cup 22, and then the main suction cup 22 adsorbs and fixes the PCB board. After that, the negative pressure suction plate 431 releases the adsorption of the PCB board. Then, the driving motor 441 is started, and the two grabbing arms 43 are driven to slide backwards through the bidirectional lead screw 442, and the pressure roller 432 moves from the upper end surface of the pressure block 233 to the inclined surface 2331 and rolls along the inclined surface 2331. During the rolling process, as the pressure roller 432 gradually moves away, the auxiliary suction cup 24 and the lifting seat 232 gradually reset and rise. When the pressure roller 432 completely avoids the pressure block 233, the auxiliary suction cup 24 resets, and the grabbing arm 43 also moves away from the bottom of the PCB board. The two auxiliary suction cups 24 then adsorb and fix the two sides of the PCB board, thereby completing the overall adsorption and fixation of the PCB board after turning it over. Subsequently, the other side of the PCB board can be processed.

[0037] The present invention provides an automated production and processing system for PCB boards, which is provided with a manipulator 4 for grabbing and actively flipping PCB boards, and a suction fixing table 2 for processing and fixing PCB boards is provided in cooperation with the manipulator 4, and the overall suction fixing surface of the suction fixing table 2 is composed of a main suction cup 22 and auxiliary suction cups 24 distributed on both sides. When the PCB board is placed by the manipulator 4, the PCB board can always be completely fitted with the overall suction fixing surface of the suction fixing table 2 regardless of being turned over or not, and the suction and fixing switching of the PCB board between the manipulator 4 and the suction fixing table 2 is realized during the placement process, thereby avoiding the movement and dislocation of the processing and placement position; the system provided by the present invention can be applied to existing PCB board processing equipment that does not support double-sided synchronous processing, and on the basis of ensuring the flipping positioning accuracy during the double-sided face-changing processing of the PCB board, there is no need to additionally assemble a flipping mechanism and a corresponding positioning correction structure, which greatly simplifies the assembly of the equipment, reduces the equipment cost, and is convenient for equipment inspection and maintenance.

[0038] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0040] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A PCB board automated production and processing system, characterized by: The invention comprises a workbench (1), the workbench (1) is equipped with an adsorption fixing table (2) for horizontally adsorbing and fixing a PCB board, the workbench (1) is equipped with a displacement rack (3) for providing horizontal and vertical displacement drive, and the movable end of the displacement rack (3) is equipped with a manipulator (4) for grabbing the PCB board; wherein: The adsorption fixing table (2) comprises a main suction cup (22) and two auxiliary suction cups (24) horizontally distributed on both sides of the main suction cup (22); the main suction cup (22) is fixed on the workbench (1); and the auxiliary suction cups (24) are vertically elastically supported and installed on the workbench (1); when the auxiliary suction cups (24) are at the highest position, the upper end surface of the auxiliary suction cups (24) is flush with the upper end surface of the main suction cup (22); The manipulator (4) comprises an electric turntable (41) which is axially arranged horizontally and fixed on the displacement end of the displacement frame (3); a pressure buffer frame (42) is fixed on the table surface of the electric turntable (41); two grabbing arms (43) are relatively slidably arranged on the pressure buffer frame (42); the grabbing arms (43) slide in a direction perpendicular to the axial direction of the electric turntable (41); the pressure buffer frame (42) is also equipped with a distance adjustment component (44) for driving the two grabbing arms (43) to slide relative to each other; and a negative pressure suction plate (431) for adsorbing and grabbing PCB boards is fixed on the grabbing arms (43); After the gripping arm (43) grips the PCB board through the negative pressure suction plate, when the negative pressure suction plate (431) faces downward, the PCB board is simultaneously adsorbed and fixed on the main suction cup (22) and the two auxiliary suction cups (24); when the electric turntable (41) is rotated 180 degrees so that the negative pressure suction plate (431) faces upward, the two gripping arms (43) press down the two auxiliary suction cups (24) one by one, and after the PCB board is pre-adsorbed and fixed by the main suction cup (22), the two auxiliary suction cups (24) are subsequently adsorbed and fixed.

2. The PCB board automated production and processing system according to claim 1, characterized in that: Two pressure rollers (432) are horizontally rotatably mounted on the gripping arm (43) at one side facing away from the negative pressure suction plate (431); two elastic supports (23) corresponding to the two auxiliary suction cups (24) are fixed on the workbench (1), and the auxiliary suction cups (24) are fixed on the elastic supports (23); when the negative pressure suction plate (431) faces upward, the gripping arm (43) contacts the elastic supports (23) through the two pressure rollers (432), and the auxiliary suction cups (24) are synchronously lowered with the passive downward pressure of the elastic supports (23).

3. The PCB board automated production and processing system according to claim 2, characterized in that: The elastic support (23) comprises a guide block (231) fixed on the workbench (1); a lifting seat (232) is mounted on the guide block (231) in a vertically sliding manner; at least one supporting spring (235) is fixed between the lifting seat (232) and the workbench (1); and the auxiliary suction cup (24) is fixed on the lifting seat (232).

4. The PCB board automated production and processing system according to claim 3, characterized in that: The lifting seat (232) is provided with two pressure blocks (233) which are in corresponding contact with the two pressure rollers (432) when pressed downward, and the pressure block (233) is provided with an inclined surface (2331) which is cut downward from the upper end surface; the inclined surfaces (2331) on the two pressure blocks (233) located at opposite positions in the two elastic supports (23) are arranged in an "eight" shape; under the drive of the distance adjustment component (44), when the distance between the two grabbing arms (43) gradually increases, the pressure roller (432) which is in pressure contact with the pressure block (233) rolls from the upper end surface of the pressure block (233) to the inclined surface (2331).

5. The PCB board automated production and processing system according to claim 3, characterized in that: A fixed seat (21) is fixed on the workbench (1), the fixed seat (21) is located between two elastic supports (23), and the main suction cup (22) is fixed on the fixed seat (21); a height limiting plate (234) in contact with the bottom end of the fixed seat (21) is horizontally fixed on the lifting seat (232), and under the elastic force of the supporting spring (235), when the height limiting plate (234) is in contact with the bottom end of the fixed seat (21), the upper end surface of the auxiliary suction cup (24) is flush with the upper end surface of the main suction cup (22).

6. The PCB board automated production and processing system according to claim 1, characterized in that: The pressure relief frame (42) comprises a rotating frame (421) fixed on the tabletop of the electric turntable (41) and rotating therewith; a plurality of guide rods (422) are fixed on the rotating frame (421); the guide rods (422) are axially arranged perpendicularly relative to the axial direction of the electric turntable (41); a tail plate (424) is slidably mounted on the plurality of guide rods (422); at least one buffer spring (423) is connected between the tail plate (424) and the rotating frame (421); the material grabbing arm (43) is slidably mounted on the tail plate (424); and the distance adjustment component (44) is assembled on the tail plate (424).

7. The PCB board automated production and processing system according to claim 1, characterized in that: The side edges of the auxiliary suction cup (24) and the main suction cup (22) are in close contact with each other.

8. The PCB board automated production and processing system according to claim 6, characterized in that: The tail plate (424) is provided with a slide rail (425) extending axially and vertically relative to the electric turntable (41); the grabbing arm (43) is slidably mounted on the slide rail (425); the distance adjustment component (44) comprises a driving motor (441) fixed at one end of the slide rail (425) and a bidirectional lead screw (442) fixed on the output shaft of the driving motor (441); the bidirectional lead screw (442) is rotatably mounted in the slide rail (425); and the two grabbing arms (43) are threadedly connected to two threaded sections of the bidirectional lead screw (442) in a one-to-one correspondence.

9. The PCB board automated production and processing system according to claim 1, characterized in that: The displacement frame (3) comprises a horizontal guide rail (31) supported and fixed on the workbench (1), a transverse frame (32) is slidably mounted along the horizontal guide rail (31), a lifting assembly (33) is mounted on the transverse frame (32), and the electric turntable (41) is fixed to the lifting end of the lifting assembly (33).

10. The PCB board automated production and processing system according to claim 9, characterized in that: The lifting assembly (33) comprises a lifting slider (334) provided for lifting drive, wherein the lifting slider (334) is vertically slidably mounted on the transverse moving frame (32); and the electric turntable (41) is fixed on the lifting slider (334).

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