Circuit board double-sided processing equipment and method with 180-degree automatic flipping mechanism

Abstract

The present invention discloses a circuit board double-sided processing device and method with a 180-degree automatic flipping mechanism. The processing device includes a base, a height switching mechanism, a conveying mechanism and an automatic flipping mechanism arranged on the base; the height switching mechanism includes a substrate that can form a lifting displacement relative to the base; the conveying mechanism includes two vertical plates, each of which is provided with a conveying line; the automatic flipping mechanism includes two guide rails, a sliding assembly, a driving motor and a transmission mechanism and at least two claws, and the driving motor drives the claws to flip 180 degrees while driving the sliding assembly to move; the claws include at least one abutment portion and a clamping portion, and the clamping portion is a groove with a thickness matching the thickness of the circuit board; when the claw is in the initial position, its abutment portion is located above the clamping portion. This solution can improve the compactness of the equipment, reduce space occupation, improve the processing efficiency of the product, and can adapt to the processing requirements of different modes.

Description

Technical Field

[0001] The present invention relates to the field of mechanical processing, and in particular to a circuit board double-sided processing device and method with an automatic flipping mechanism / function. Background Art

[0002] In the prior art, for some products that need to be processed on both sides, such as electronic circuit boards, an automatic flipping device is usually installed on the conveyor production line between the front and back processing stations. The product (circuit board) is flipped 180° by the flipping device, thereby reducing manual intervention and improving the operating efficiency of the entire production line.

[0003] For example, the invention patent with the authorization announcement number CN110723513B provides a sheet turning device with a turning wheel, wherein the turning wheel arranged between the front conveyor belt and the rear conveyor belt realizes the turning of the sheet during the conveying process, has high turning efficiency, simple structure, and greatly improves the degree of automation of sheet turning, but the device needs to increase the turning space of at least twice the area of ​​the product, and occupies a large space; another example is the utility model patent with the authorization announcement number CN216491301U, which provides a turning device for turning over FPC, including a turning mechanism, the turning mechanism includes a frame, a first rotating shaft, and a first clamping plate and a second clamping plate arranged on the frame with an interval of one up and one down, the first clamping plate and the second clamping plate are respectively moved along the length direction of the frame by a first translation assembly and a second translation assembly, the first rotating shaft is connected to the frame to drive the frame to turn over, and the FPC can be turned over quickly with high efficiency. In addition, there is also a technology in the prior art that uses a robot to grab and turn the product from the input station and then place it on the output station. The above-mentioned flipping device can realize the automatic and rapid flipping of plate-shaped products / carriers, but this type of flipping device cannot process products at the flipping station, which lengthens the entire automatic processing production line (adding a flipping station). Moreover, the flipping device in the above-mentioned prior art blocks the front and back sides of the product when flipping, so it only has the function of flipping the product, and cannot directly complete other processing on the product surface at this station.

[0004] The invention patent with publication number CN109382693A provides a flipping device for flipping a plate-like object. When the plate-like object needs to be processed, the plate-like object is first clamped in the card slots of two flipping members, and then one of the surfaces of the plate-like object is processed by an external machine. After the processing is completed, the driving mechanism is started, and the driving mechanism drives the flipping member to flip, and the flipping member drives the plate-like object (circuit board) to flip 180°, so that the external machine processes the other surface of the plate-like object. The device can complete the surface processing of the product at the flipping station at the same time, which can further improve the compactness of the equipment, reduce space occupation, and improve the processing efficiency of the product. However, the device still has the following problems: First, the flipping members on both sides of the product need to be provided with a driving mechanism, and the two driving mechanisms need to be turned synchronously, which not only increases the number of driving components, but also needs to ensure the accuracy of the synchronous operation of different driving components; second, in the device, the product fixing and conveying method and the corresponding structure are not provided, so it is usually necessary to fix the product in the flipping member manually, and after the product is flipped and processed, the product cannot be output by automatic operation. Summary of the invention

[0005] Therefore, in order to solve the above problems, the present invention provides a circuit board double-sided processing device and method with a 180-degree automatic flipping mechanism.

[0006] The present invention is achieved through the following technical solutions:

[0007] A circuit board double-sided processing device with a 180-degree automatic flipping mechanism comprises a base, a height switching mechanism, a conveying mechanism and an automatic flipping mechanism arranged on the base;

[0008] The height switching mechanism includes a base plate located above the base and capable of forming a lifting displacement relative to the base, and a lifting cylinder fixed on the base and driving the base plate to move to a first height position and a second height position;

[0009] The conveying mechanism includes two vertical plates vertically standing above the base, the two vertical plates are respectively located on both sides of the base plate, and each vertical plate is provided with a conveying line, and the distance between the two conveying lines is less than the width of the circuit board to be processed;

[0010] The automatic flipping mechanism is arranged on the substrate and rises and falls synchronously with the substrate, and comprises two guide rails arranged along the conveying direction of the conveying line, a sliding assembly located on the guide rails, a driving motor and a transmission mechanism for driving the sliding assembly to move, and at least two claws, wherein the driving motor drives the claws to flip 180 degrees simultaneously during the process of driving the sliding assembly to move;

[0011] The clamping claw at least includes an abutting portion and a clamping portion, wherein the clamping portion is a groove whose thickness matches the thickness of the circuit board; when the clamping claw is in the initial position, the abutting portion is located above the clamping portion;

[0012] When the circuit board needs to be processed on the front side, the clamping claw is in the initial position; the height switching mechanism drives the substrate to be in a first height position, the abutting portion is higher than the conveying line, and the height difference between the abutting portion and the conveying line is less than the sum of the thickness of the abutting portion and the circuit board; when the circuit board needs to be processed on the back side, the clamping claw is in the initial position; the height switching mechanism drives the substrate to be in a second height position, the clamping portion is located above the conveying line and the opening of its groove is aligned with the circuit board.

[0013] Preferably, the sliding assembly includes a sliding seat and a sliding block arranged below the sliding seat, the sliding block is slidably connected to the guide rail, and a support plate is commonly mounted on the two sliding seats.

[0014] Preferably, the driving motor is arranged below the supporting plate, a rotating rod is arranged above the supporting plate, the clamping claw is fixed on the rotating rod, and the driving motor drives the rotating rod to rotate 180 degrees through a pulley structure, thereby driving the clamping claw to flip 180 degrees.

[0015] Preferably, the transmission mechanism includes a gear for receiving power from the driving motor, and a rack meshing with the gear, and the rack is arranged along the conveying direction of the conveying line and is located on the inner side of the two guide rails.

[0016] Preferably, a speed ratio adjustment mechanism is further included between the gear and the drive motor to ensure that the sliding seat matches the two 180-degree extreme positions of the flipping of the claw at the two end sides of its displacement range.

[0017] Preferably, two position sensors for limiting the displacement range of the sliding seat are also included.

[0018] Preferably, the lifting cylinder is equipped with a displacement sensor so that the displacement distance of the lifting cylinder is equal to the height difference between the first height position and the second height position.

[0019] Preferably, an identification conveyor is further provided upstream of the conveying mechanism, and an identification device is provided on the identification conveyor.

[0020] A processing method of a circuit board double-sided processing device with a 180-degree automatic flipping mechanism, using the circuit board double-sided processing device with a 180-degree automatic flipping mechanism as described above, comprises the following steps:

[0021] S1: Identifying a processing mode of the circuit board at an input end of the circuit board, wherein the processing mode includes a front processing mode and a back processing mode;

[0022] S2: Processing the current circuit board according to the processing mode of the circuit board identified in step S1;

[0023] When the circuit board processing mode is the front processing mode, when the circuit board needs to be processed on the front side, the clamping claw is in the initial position, the height switching mechanism drives the substrate to be in the first height position, and the conveyor line conveys the circuit board in the direction of the clamping claw until the abutting portion blocks the circuit board from moving further, and the front side of the circuit board is processed by the processing equipment;

[0024] When the circuit board processing mode is the reverse side processing mode, the clamping claw is in the initial position, the height switching mechanism drives the substrate to the second height position, and stops conveying after the circuit board is embedded into the groove of the clamping part through the conveyor line, and the driving motor synchronously drives the sliding assembly to move and the clamping claw to flip 180 degrees.

[0025] S3: The processed circuit board is separated from the clamping claws and output through the conveying mechanism.

[0026] The beneficial effects of the technical solution of the present invention are mainly reflected in:

[0027] 1. The product flipping and front and back processing can be completed on the same device, which improves work efficiency and reduces space occupation. At the same time, it can adapt to the processing needs of different modes. The processing technology required for the product is identified before the product enters the flipping device, and different processing modes are provided for the surface that needs to be processed. When the front of the product needs to be processed, the automatic flipping mechanism is used to limit the product; when the back of the product needs to be processed, the product is flipped 180 degrees by the automatic flipping mechanism and moved to continue to be placed in the target processing position after flipping, which can further improve the compactness of the equipment.

[0028] 2. The automatic flipping mechanism can be raised and lowered between the two conveyor lines. On the one hand, the two conveyor lines can position the products to ensure the stability of the products during processing; on the other hand, the products are directly transported to the target processing position through the conveyor lines, and the products are limited and fixed by the abutment and clamping parts of the clamping claws respectively. When the product is turned over and the surface processing is completed, it can be directly output through the conveyor line. Especially after the reverse side of the product is processed, by starting the conveyor lines on both sides of the product, the product can be automatically disengaged from the clamping groove of the clamping claw, and the separation of the product and the clamping claw and the output of the product can be realized simultaneously, without the need to clamp and release the circuit board by the clamping claw, further improving the processing efficiency.

[0029] 3. The automatic flipping mechanism synchronously drives the clamping claw and the translation mechanism through the same driving mechanism, and the flipping direction of the clamping claw is matched with the moving direction of the translation mechanism. On the one hand, the setting of the driving mechanism can be reduced, and the space occupation and driving force can be further reduced. The use of the same driving mechanism can also improve the synchronization of flipping and translation, and further improve the processing accuracy. On the other hand, through the speed ratio adjustment mechanism, it is ensured that the sliding seat matches the two 180-degree extreme positions of the clamping claw at the two end sides of its displacement range, thereby further improving the accuracy of the processing and positioning of the front and back sides of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of a circuit board double-sided processing device with a 180-degree automatic flip mechanism (the substrate is located at the second height position);

[0031] Figure 2 yes Figure 1 A magnified view of part A;

[0032] Figure 3 It is a structural schematic diagram of a circuit board double-sided processing device with a 180-degree automatic flipping mechanism (at this time, the substrate is at the second height position and one side of the vertical plate and the conveyor line are hidden);

[0033] Figure 4 This is a left view of a circuit board double-sided processing device with a 180-degree automatic flip mechanism;

[0034] Figure 5 It is a structural schematic diagram of a circuit board double-sided processing device with a 180-degree automatic flipping mechanism (at this time, the substrate is at the first height position and one side of the vertical plate and the conveyor line are hidden);

[0035] Figure 6 This is the front view of the circuit board double-sided processing equipment with a 180-degree automatic flip mechanism (the substrate is at the first height position and one side of the vertical plate and the conveyor line are hidden);

[0036] Figure 7 yes Figure 6 A magnified view of part B;

[0037] Figure 8 It is a schematic diagram of the operation of a double-sided processing device for a circuit board with a 180-degree automatic flipping mechanism in a state of flipping the circuit board;

[0038] Fig. 9 It is a working schematic diagram of a circuit board double-sided processing device with a 180-degree automatic flipping mechanism in a circuit board input state;

[0039] Fig.10 It is a working schematic diagram of a circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism in the output state after processing the reverse side of the circuit board;

[0040] Fig.11 This is a working schematic diagram of a circuit board double-sided processing device with a 180-degree automatic flipping mechanism in which the clamping claws clamp and fix the circuit board. DETAILED DESCRIPTION

[0041] In order to make the purpose, advantages and features of the present invention more clearly and in detail, the following preferred embodiments are used for illustration and explanation. The embodiments are only typical examples of the application of the technical solution of the present invention. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0042] At the same time, it is stated that in the description of the scheme, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "front", "back", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" in this solution are only used for descriptive purposes and cannot be understood as indicating or implying the order of importance, or implicitly indicating the number of technical features shown. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] The present invention discloses a circuit board double-sided processing device with a 180-degree automatic flipping mechanism, such as Figure 1-Figure 6 As shown, it includes a base 1, a height switching mechanism, a conveying mechanism and an automatic flipping mechanism arranged on the base 1.

[0045] like Figure 1-Figure 7As shown, the height switching mechanism includes a base plate 2 located above the base 1 and capable of forming a lifting displacement relative to the base 1, and a lifting cylinder 3 fixed on the base 1 and driving the base plate 2 to move to a first height position and a second height position. In addition, the lifting cylinder 3 should also drive the base plate 2 to move to a height lower than the first height position, thereby avoiding interference with the product when the product is to be output. In one embodiment, the lifting cylinder 3 is built with a displacement sensor so that the displacement distance of the lifting cylinder 3 is equal to the height difference between the first height position and the second height position, thereby ensuring that the lifting cylinder 3 accurately moves the substrate 2 from the first height position to the second height position. The displacement sensor can refer to the prior art and will not be described in detail here. In other embodiments, the lifting cylinder 3 can also be accurately positioned at multiple heights by an encoder or the like. This is a prior art and will not be described in detail here.

[0046] like Figure 1 , Figure 4 As shown, the conveying mechanism includes two upright plates 4 vertically standing above the base 1, the two upright plates 4 are respectively located on both sides of the base plate 2, and each upright plate 4 is provided with a conveying line, and the distance between the two conveying lines is less than the width of the circuit board 7 to be processed, thereby ensuring that the two sides of the bottom of the circuit board 7 are respectively placed on the two conveying lines and transported to the target processing position by the conveying lines for processing.

[0047] like Figure 4-Figure 7 As shown, in some embodiments, the conveying mechanism includes a first conveyor line 5 and a second conveyor line 6 symmetrically arranged on both sides of the flipping device, and the first conveyor line 5 and the second conveyor line 6 are both belt conveyor lines. In one embodiment, the input end and the output end of the first conveyor line 5 and the second conveyor line 6 are both provided with rollers 21, and a driving wheel 22 is provided between the rollers 21 at both ends. The driving wheel 22 is connected to the motor, and tensioning wheels 23 are also provided on both sides of the driving wheel 22. A conveying belt 24 is wound between the rollers 21, the driving wheel 22 and the tensioning wheel 23, and the circuit board 7 is driven to translate above the conveying mechanism through the conveying belt 24.

[0048] like Figure 1-Figure 5 As shown, the automatic flipping mechanism is arranged on the substrate 2 and rises and falls synchronously with the substrate 2, and includes two guide rails 14 arranged along the conveying direction of the conveying line, a sliding assembly located on the guide rails 14, a driving motor 18 and a transmission mechanism for driving the sliding assembly to move, and at least two claws 8, as shown in FIG. Figure 8-Figure 11 As shown, the driving motor 18 drives the claw 8 to flip 180 degrees while driving the sliding assembly to move, thereby ensuring that the product is located at the same processing position before and after flipping, thereby reducing the space occupied by the flipping process.

[0049] like Figure 3-Figure 5 As shown, in some embodiments, the sliding assembly includes a sliding seat 16 and a sliding block 17 arranged below the sliding seat 16, the sliding block 17 is slidably connected to the guide rail 14, and can reciprocate along the guide rail 14, a support plate 9 is jointly mounted on the two sliding seats 16, the driving motor 18 is preferably arranged below the support plate 9 and between the two sliding blocks 17, a rotating rod 10 is arranged above the support plate 9, the claw 8 is fixed on the rotating rod 10, the driving motor 18 drives the rotating rod 10 to rotate 180 degrees through a pulley structure, and then drives the claw 8 to form a 180-degree flip. In one embodiment, the two ends of the rotating rod 10 are rotatably arranged above the support plate 9 through bearing brackets.

[0050] like Figure 2-Figure 5 As shown, in one embodiment, the transmission mechanism includes a gear 11 that receives power from the drive motor 18, and a rack 13 meshing with the gear 11, wherein the rack 13 is arranged along the conveying direction of the conveyor line and is located on the inner side of the two guide rails 14, wherein the drive motor 18 drives the gear 11 to rotate along the rack 13, and simultaneously drives the support plate 9 and the sliding block 17 connected to the gear 11 to slide along the guide rail 14, thereby realizing the translation of the entire automatic flipping mechanism. Wherein, a speed ratio adjustment mechanism 15 is also included between the gear 11 and the drive motor 18 to ensure that the sliding seat 16 matches the two 180-degree extreme positions of the flipping of the claw 8 at the two end sides of its displacement range. Specifically, when the sliding seat 16 is at the first end side of its displacement range, the claw 8 is located at its initial position, and its groove is set toward the input end of the conveyor line. When the sliding seat 16 is at the second end side of its displacement range, the claw 8 just flips 180 degrees, and its groove is set toward the output end of the conveyor line. In a preferred embodiment, the speed ratio adjustment mechanism 15 is a deceleration mechanism. The drive motor 18 includes a motor shaft, and the reducer includes a transmission shaft. One end of the transmission shaft is connected to the rotating rod 10 above the support plate 9 through a first pulley structure 19, and the other end of the transmission shaft is connected to the motor shaft through a second pulley structure 20. The end of the transmission shaft connected to the motor shaft is also coaxially provided with a reduction gear 12, and the reduction gear 12 is meshed with the gear 11. Therefore, when the drive motor 18 drives the transmission shaft to rotate, the gears 11 and the transmission rod connected to the two ends of the transmission shaft rotate synchronously, and synchronously realize the translation of the automatic flipping mechanism and the 180-degree flipping of the claw 8. In one embodiment, two position sensors 25 for limiting the displacement range of the sliding seat 16 are also included to further ensure the accuracy of the translation position of the automatic flipping mechanism.

[0051] like Figure 2, Figure 7 As shown, the claw 8 includes at least one abutment portion 801 and a clamping portion, and the clamping portion is a groove 802 whose thickness matches the thickness of the circuit board 7, so as to ensure that when the circuit board 7 needs to be flipped from the front side to the back side, Fig.11 As shown, by embedding one end of the circuit board 7 into the groove 802 and fixing it with the claw 8; when the claw 8 is in the initial position, its abutment portion 801 is located above the clamping portion. Specifically, when the claw 8 is in the initial position, the automatic flipping mechanism is close to the output end of the conveyor line. At this time, the opening of the groove 802 of each claw 8 is set toward the input direction of the conveyor line. Since the abutment portion 801 is located above the clamping portion, when the circuit board 7 is conveyed to the target processing position, it is only necessary to adjust the height position of the claw 8 to determine the relative position of the conveying abutment portion 801 and the clamping portion with the circuit board 7, and select the abutment portion 801 or the groove 802 of the clamping portion to contact one end of the circuit board 7.

[0052] Among them, Figure 5-Figure 7 As shown, when the circuit board 7 needs front processing, the claw 8 is in the initial position; the height switching mechanism drives the substrate 2 to be in the first height position, the abutment portion 801 is higher than the conveyor line, and the height difference between the abutment portion 801 and the conveyor line is less than the sum of the thickness of the abutment portion and the circuit board 7; specifically, as Figure 7 As shown, when the circuit board 7 is located above the conveyor line, it is only necessary to ensure that the abutment portion 801 is in contact with the end of the circuit board 7 to limit the circuit board 7. Therefore, when the height difference between the abutment portion 801 and the conveyor line is less than the sum of the thickness of the abutment portion and the circuit board 7, it can be ensured that the abutment portion 801 is in contact with the circuit board 7, and that the circuit board 7 will not pass through the bottom groove 802 of the abutment portion 801; in a preferred embodiment, when the substrate 2 is at a first height position, the height difference between the abutment portion 801 and the conveyor line is exactly the thickness of the abutment portion.

[0053] Among them, when the front side of the product is processed, the lifting cylinder 3 should drive the substrate 2 to descend to a position lower than the first height, so as to avoid the claw 8 interfering with the output of the circuit board 7.

[0054] like Figure 1-Figure 3As shown, when the circuit board 7 needs to be processed on the back side, the clamping claw 8 is in the initial position; the height switching mechanism drives the substrate 2 to be in the second height position, the clamping portion is located above the conveyor line and the opening of its groove 802 is aligned with the circuit board 7. Preferably, when the substrate 2 is in the second height position, the inner wall on the lower side of the groove 802 is flush with the upper surface height of the conveyor line, thereby ensuring that one end of the circuit board 7 is directly input into the groove 802 through the conveyor line, so that the circuit board 7 is synchronously fixed with the clamping claw 8 during the conveying process.

[0055] In some embodiments, an identification conveyor (not shown in the figure) is also provided upstream of the conveying mechanism. The identification conveyor is provided with an identification device, and the identification conveyor can identify the required processing surface of the circuit board 7, thereby ensuring that the processing equipment performs processing according to the required processing surface of the current circuit board 7. In one embodiment, the identification device can be a scanning / barcode scanning device or a camera, and the circuit board 7 can also be provided with an identification (such as a label, identification code, etc.) for distinguishing the required processing surface. The scanning / scanning identification device and its process can refer to the existing technology and will not be repeated here.

[0056] The present invention also discloses a processing method of a circuit board double-sided processing device with a 180-degree automatic flipping mechanism, using the circuit board double-sided processing device with a 180-degree automatic flipping mechanism as described above, comprising the following steps:

[0057] S1: Identifying a processing mode of the circuit board 7 at an input end of the circuit board 7, wherein the processing mode includes a front processing mode and a back processing mode;

[0058] S2: Processing the current circuit board 7 according to the processing mode of the circuit board 7 identified in step S1;

[0059] like Figure 5-Figure 7 As shown, when the processing mode of the circuit board 7 is the front processing mode, when the circuit board 7 needs to be processed on the front, the clamping claw 8 is in the initial position, the height switching mechanism drives the substrate 2 to be in the first height position, and the conveyor line conveys the circuit board 7 to the direction where the clamping claw 8 is located until the abutting portion 801 blocks the circuit board 7 from continuing to move, and the front of the circuit board 7 is processed by the processing equipment;

[0060] like Figure 1-Figure 3 As shown, when the processing mode of the circuit board 7 is the reverse processing mode, the clamping claw 8 is in the initial position, the height switching mechanism drives the substrate 2 to be in the second height position, and the circuit board 7 is embedded in the groove 802 of the clamping part through the conveying line and then the conveying is stopped, and the driving motor 18 synchronously drives the sliding assembly to move and the clamping claw 8 to flip 180 degrees.

[0061] S3: The processed circuit board 7 is separated from the claws 8 and output through the conveying mechanism; wherein, when the front side of the product is processed, the lifting cylinder 3 should drive the base plate 2 to drop to a position lower than the first height, so as to avoid the claws 8 interfering with the output of the circuit board 7. After the back side is processed, since each claw 8 is flipped 180 degrees, the opening of its groove 802 is set toward the output direction of the conveying line. Therefore, there is no need to change the current height of the claw 8, and the circuit board 7 can be directly output through the conveying line.

[0062] In some embodiments, in step S2, before processing the back side of the circuit board 7, the displacement range of the sliding seat 16 is sensed by the position sensor 25 to determine whether the circuit board 7 is located at the target processing position, and then the processing is performed.

[0063] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. Double-sided processing equipment for circuit boards with 180-degree automatic flipping mechanism, characterized by: It includes a base, a height switching mechanism, a conveying mechanism and an automatic flipping mechanism arranged on the base; The height switching mechanism includes a base plate located above the base and capable of forming a lifting displacement relative to the base, and a lifting cylinder fixed on the base and driving the base plate to move to a first height position and a second height position; The conveying mechanism includes two vertical plates vertically standing above the base, the two vertical plates are respectively located on both sides of the base plate, and each vertical plate is provided with a conveying line, and the distance between the two conveying lines is less than the width of the circuit board to be processed; The automatic flipping mechanism is arranged on the substrate and rises and falls synchronously with the substrate, and comprises two guide rails arranged along the conveying direction of the conveying line, a sliding assembly located on the guide rails, a driving motor and a transmission mechanism for driving the sliding assembly to move, and at least two claws, wherein the driving motor drives the claws to flip 180 degrees simultaneously during the process of driving the sliding assembly to move; The clamping claw at least includes an abutting portion and a clamping portion, wherein the clamping portion is a groove whose thickness matches the thickness of the circuit board; when the clamping claw is in the initial position, the abutting portion is located above the clamping portion; When the circuit board needs to be processed on the front side, the clamping claw is in the initial position; the height switching mechanism drives the substrate to be in a first height position, the abutting portion is higher than the conveying line, and the height difference between the abutting portion and the conveying line is less than the sum of the thickness of the abutting portion and the circuit board; when the circuit board needs to be processed on the back side, the clamping claw is in the initial position; the height switching mechanism drives the substrate to be in a second height position, the clamping portion is located above the conveying line and the opening of its groove is aligned with the circuit board.

2. The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism according to claim 1 is characterized in that: The sliding assembly comprises a sliding seat and a sliding block arranged below the sliding seat, the sliding block is slidably connected to the guide rail, and a support plate is commonly mounted on the two sliding seats.

3. The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism according to claim 2 is characterized in that: The driving motor is arranged below the supporting plate, a rotating rod is arranged above the supporting plate, the clamping claw is fixed on the rotating rod, and the driving motor drives the rotating rod to rotate 180 degrees through a pulley structure, thereby driving the clamping claw to flip 180 degrees.

4. The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism according to claim 3 is characterized in that: The transmission mechanism includes a gear receiving power from the driving motor and a rack meshing with the gear. The rack is arranged along the conveying direction of the conveying line and is located on the inner side of the two guide rails.

5. The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism according to claim 4 is characterized in that: A speed ratio adjustment mechanism is also included between the gear and the drive motor to ensure that the sliding seat matches the two 180-degree extreme positions of the flipping of the claw at the two end sides of its displacement range.

6. The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism according to claim 5, characterized in that: Two position sensors are also included for limiting the displacement range of the sliding seat.

7. The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism according to claim 6, characterized in that: The lifting cylinder is equipped with a displacement sensor so that the displacement distance of the lifting cylinder is equal to the height difference between the first height position and the second height position.

8. The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism according to claim 1, characterized in that: An identification conveyor is also provided upstream of the conveying mechanism, and an identification device is provided on the identification conveyor.

9. A processing method for a double-sided processing device for a circuit board having a 180-degree automatic flipping mechanism, characterized in that: The circuit board double-sided processing equipment with a 180-degree automatic flipping mechanism as claimed in any one of claims 1 to 8 comprises the following steps: S1: Identifying a processing mode of the circuit board at an input end of the circuit board, wherein the processing mode includes a front processing mode and a back processing mode; S2: Processing the current circuit board according to the processing mode of the circuit board identified in step S1; When the circuit board processing mode is the front processing mode, when the circuit board needs to be processed on the front side, the clamping claw is in the initial position, the height switching mechanism drives the substrate to be in the first height position, and the conveyor line conveys the circuit board in the direction of the clamping claw until the abutting portion blocks the circuit board from moving further, and the front side of the circuit board is processed by the processing equipment; When the circuit board processing mode is the reverse processing mode, the clamping claw is in the initial position, the height switching mechanism drives the substrate to the second height position, and stops conveying after the circuit board is embedded into the groove of the clamping portion through the conveying line, and the driving motor synchronously drives the sliding assembly to move and the clamping claw to flip 180 degrees; S3: The processed circuit board is separated from the clamping claws and output through the conveying mechanism.

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