Board collecting and releasing equipment for automatic exposure of PCB (Printed Circuit Board)

Abstract

The invention relates to the technical field of PCB (Printed Circuit Board) exposure devices, in particular to board collecting and releasing equipment for automatic exposure of a PCB. The equipment comprises a mechanical arm on a base, a placing table with a placing groove and a conveying mechanism. In order to solve the problem of displacement of lower plates during PCB stacking and taking, a pushing mechanism is additionally arranged, a sliding frame in a sliding way on the side edge of a placing table is reset through a first spring, a top guide rail is connected with a clamping frame with a pressing piece, and a second spring is arranged between the clamping frame and the guide rail. A push plate of a mechanical arm rotating part pushes a sliding frame to avoid material taking, and after material taking, double springs cooperate to enable pressing pieces to arrange and stack the plates. The position of a suction cup of the adsorption mechanism is adjusted through a guide rod and a sliding base to adapt to PCBs of different sizes. A centering mechanism is arranged behind the conveying mechanism, and a driving frame linkage push rod pushes the PCB to the middle of a conveying roller; and an inclined pressing plate of the limiting mechanism drives a limiting plate to descend to release the aligned PCBs under the action of a pressing rod of the driving frame. According to the scheme, the stacking stability and the feeding precision are improved, and plate pressing damage is avoided.

Description

Technical Field

[0001] This invention belongs to the technical field of PCB exposure devices, and relates to an automatic PCB exposure and take-up / take-up device. Background Technology

[0002] A PCB, also known as a printed circuit board, is a core component of electronic devices used to connect and support electronic components. Its manufacturing process includes multiple steps such as design, substrate preparation, pattern transfer, etching, and drilling, among which exposure is one of the key steps. During exposure, the PCB substrate coated with photosensitive material is irradiated with ultraviolet light, transferring the designed circuit pattern from the photomask onto the substrate.

[0003] With the advancement of technology, the processing of printed circuit boards has become more automated. During exposure, robotic arms are usually used to unload the PCBs. During loading, the PCBs are usually stacked together and then attracted by suction cups 17. However, because the PCBs are close together, after the outer PCBs are quickly removed, the lower PCBs are easily affected by the negative pressure, resulting in unevenness and affecting the neatness and accuracy of loading. Therefore, we propose an automatic PCB exposure and unloading device to solve the above-mentioned problems. Summary of the Invention

[0004] In view of this, in order to solve the problem that when the outer PCB is quickly removed due to the close proximity of the PCBs, the lower PCB is easily affected by the negative pressure, resulting in unevenness and affecting the neatness and accuracy of the loading, the present invention provides an automatic PCB exposure and take-up / take-up device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic PCB exposure and take-up / take-up device, comprising a robotic arm fixed to the surface of a substrate, a placement stage and a base, wherein the top of the placement stage is provided with a placement groove for placing the PCB, the output end of the robotic arm is equipped with an adsorption mechanism for transferring the PCB, and the surface of the base is equipped with a conveying mechanism for conveying the PCB. It also includes a pushing mechanism set on one side of the placement table, which aligns and organizes the PCB. The pushing mechanism includes a slide rail on one side of the placement table and a push plate fixed to the rotating part at the bottom of the robotic arm. A sliding frame is slidably connected in the slide rail, a guide rail is fixedly connected to the top of the sliding frame, a clamping frame is slidably connected in the guide rail, and a pressure plate is fixedly connected to one side of the clamping frame. A No. II spring is installed between the clamping frame and the guide rail through a spring seat, and a No. I spring is installed between the sliding frame and the slide rail through a spring seat. When the push plate rotates with the rotating part at the bottom of the robotic arm, it pushes the sliding frame away from the PCB. A centering mechanism, which is disposed on the surface of the base, is used to push the PCB toward the center of the conveying mechanism; A limiting mechanism is provided on the surface of the base to limit the PCB.

[0006] As a further embodiment of the present invention, the adsorption mechanism includes a mounting frame, which is fixed to the output end of the robotic arm. Two guide rods are fixedly connected between the two sides of the mounting frame, and two slides are installed between the two guide rods. An adsorption plate is fixedly connected to the bottom of each slide, and multiple suction cups are fixedly installed on the bottom of each adsorption plate.

[0007] As a further embodiment of the present invention, the slide is slidably sleeved between two guide rods, and one side of the slide is threaded with a through-hole No. I set screw, which abuts against one of the guide rods.

[0008] As a further embodiment of the present invention, the conveying mechanism includes two fixed frames, both of which are fixed to the surface of the base, and a plurality of through conveying rollers are rotatably connected between the two fixed frames, the surfaces of which are smooth.

[0009] As a further embodiment of the present invention, two adjacent conveying rollers are connected by a synchronous pulley and synchronous belt drive, and a motor is fixedly connected to one side of one of the fixed frames, with one end of the motor output shaft fixed to one of the conveying rollers.

[0010] As a further embodiment of the present invention, a protective cover is fixedly connected to one side of one of the fixed frames, and the motor and the synchronous pulley and synchronous belt are both located inside the protective cover.

[0011] As a further embodiment of the present invention, the centering mechanism includes a drive frame, two sliding plates, and an arc-shaped pusher. The drive frame is rotatably connected to the surface of the base. The two sliding plates are slidably connected to the surface of the base and are symmetrically arranged. An adjustment frame is slidably connected to the surface of each sliding plate. Two push rods are fixedly connected to the top of each adjustment frame. A connecting rod is rotatably connected between both ends of the drive frame and the two sliding plates. A drive plate is fixedly connected to one side of one of the sliding plates. A drive column is rotatably connected to one end of the drive plate. The pusher is fixed to the bottom rotating part of the robotic arm. An inclined surface is provided at one end of the pusher. The pusher cooperates with the drive column through the inclined surface. A through-hole No. II set screw is threaded to one end of each drive frame. The No. II set screw abuts against the adjustment frame.

[0012] As a further embodiment of the present invention, two fixing plates are fixedly connected to the surface of the base. A through-hole rod is slidably connected to one side of each fixing plate. One end of the through-hole rod is fixed to the same sliding plate. A fourth spring is installed between each fixing plate and the adjacent sliding plate through a spring seat.

[0013] As a further embodiment of the present invention, the limiting mechanism includes two slide rods, both of which slide through the top of the base. A limiting plate is fixedly connected between the tops of the slide rods. A pressure plate is fixedly connected to one side of each slide rod. The pressure plates are inclined and symmetrical. A pressure rod is fixedly connected to one side of each drive frame. The two pressure rods cooperate with the two pressure plates respectively. A No. III spring is installed between each slide rod and the base through a spring seat.

[0014] The beneficial effects of this invention are as follows: 1. The automatic exposure and take-up device for PCB disclosed in this invention, by installing a movable sliding frame on the placement table, enables the PCB to be aligned and sorted on the placement table by the sliding frame driving the pressure plate after the PCB is transferred, which facilitates its transfer and improves the stability and accuracy of adsorption. 2. The automatic exposure and take-up / take-up equipment for PCB disclosed in this invention, through the cooperation of guide rail and No. II spring, enables the pressure plate to push the PCB flexibly during PCB handling, thereby preventing the PCB from being crushed and improving the safety of use. 3. The automatic exposure and take-up / take-up device for PCBs disclosed in this invention has a suction cup that can be adjusted in position, so that the position of the suction cup can be adjusted when facing PCBs of different sizes, thereby adsorbing PCBs of different sizes and improving the flexibility of use. 4. The automatic exposure and take-up / receiver equipment for PCB disclosed in this invention, through the setting of the centering mechanism, enables the PCB to be pushed to the center of the conveyor roller after it is placed on the conveyor roller, thereby maintaining the centered position of the PCB during exposure and improving accuracy. 5. The automatic exposure and take-up / take-up equipment for PCB disclosed in this invention uses a limiting mechanism to limit the PCB by using a limiting plate, so that the PCB can be continued to be conveyed only after it is horizontal, which is convenient to use.

[0015] This invention uses a sliding frame to drive the pressure plate to align the PCB on the placement platform, facilitating its transfer and improving the stability and accuracy of adsorption. At the same time, the No. II spring enables the pressure plate to push the PCB flexibly, preventing the PCB from being crushed and improving the safety of use. It can also keep the PCB in a centered and horizontal position, improving the accuracy of processing.

[0016] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a first-view three-dimensional structural diagram of an automatic PCB exposure and take-up / take-up device according to the present invention. Figure 2 This is a second-view three-dimensional structural diagram of an automatic PCB exposure and take-up / take-up device according to the present invention; Figure 3 This is a schematic diagram of a robotic arm structure for an automatic PCB exposure and take-up / take-up device according to the present invention. Figure 4 This is a schematic diagram of the installation structure of an adsorption mechanism for an automatic PCB exposure and take-up / take-up device according to the present invention. Figure 5 This is a schematic diagram of the mounting structure of a placement platform for an automatic PCB exposure and take-up / take-up device according to the present invention. Figure 6 This is a cross-sectional view of a conveying mechanism for an automatic PCB exposure and take-up / take-up device according to the present invention. Figure 7 This is a schematic diagram of the installation structure of the centering mechanism for an automatic PCB exposure and take-up / take-up device according to the present invention. Figure 8 This invention relates to an automatic PCB exposure and take-up / take-up device. Figure 7 Another perspective structural diagram.

[0018] Reference numerals: 1. Base plate; 2. Robotic arm; 3. Placement stage; 4. Base; 5. Fixing frame; 6. Conveying roller; 7. Protective cover; 8. Motor; 9. Push plate; 10. Inclined surface; 11. Push plate; 12. Adsorption mechanism; 13. Mounting frame; 14. Guide rod; 15. Slide; 16. Adsorption plate; 17. Suction cup; 18. No. I set screw; 19. Slide rail; 20. Sliding frame; 21. No. I spring; 22. Guide rail; 2 3. Clamping frame; 24. Pressure plate; 25. Spring II; 26. Centering mechanism; 27. Limiting mechanism; 28. Drive frame; 29. ​​Slide plate; 30. Adjusting frame; 31. Push rod; 32. Connecting rod; 33. Fixing plate; 34. Insert rod; 35. Fourth spring; 36. Drive plate; 37. Drive column; 38. Pressure rod; 39. Set screw II; 40. Slide rod; 41. Pressure plate; 42. Spring III; 43. Limiting plate. Detailed Implementation

[0019] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0020] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0021] Example 1 In one embodiment, such as Figures 1-8 As shown, an automatic PCB exposure and take-up device includes a robotic arm 2 fixed to the surface of a substrate 1, a placement stage 3 and a base 4. The top of the placement stage 3 is provided with a placement groove for placing the PCB. The output end of the robotic arm 2 is equipped with an adsorption mechanism 12 for transferring the PCB. The surface of the base 4 is equipped with a conveying mechanism for conveying the PCB. It also includes a pushing mechanism located on one side of the placement table 3, which aligns and organizes the PCBs. The pushing mechanism includes a slide rail 19 on one side of the placement table 3 and a push plate 11 fixed to the rotating part at the bottom of the robotic arm 2. A sliding frame 20 is slidably connected in the slide rail 19, and a guide rail 22 is fixedly connected to the top of the sliding frame 20. A clamping frame 23 is slidably connected in the guide rail 22, and a pressure plate 24 is fixedly connected to one side of the clamping frame 23. When the robotic arm 2 moves the suction cup 17, the rotating part at its bottom drives the push plate 11 to rotate. After the push plate 11 contacts the sliding frame 20, it pushes the PCB. Its movement causes the pressure plate 24 to move away from the stacked PCBs. A No. II spring 25 is installed between the clamping frame 23 and the guide rail 22 through a spring seat. A No. I spring 21 is installed between the sliding frame 20 and the slide rail 19 through a spring seat. When the push plate 11 rotates with the bottom rotating part of the robotic arm 2, it pushes the sliding frame 20 away from the PCBs. After the material is sucked up, the sliding frame 20 can be reset under the action of the No. I spring 21, thereby driving the clamping frame 23 and the pressure plate 24 to reset, thereby arranging and aligning the PCBs on the placement table 3, making it easier to transfer them and improving the stability and accuracy of the suction. Centering mechanism 26, which is disposed on the surface of base 4, is used to push the PCB to move towards the center of the conveying mechanism; Limiting mechanism 27 is set on the surface of base 4 to limit the PCB.

[0022] Example 2 In another embodiment, refer to Figures 1-8 This invention provides a new technical solution: an automatic exposure and take-up / take-up device for PCBs.

[0023] In this invention, the adsorption mechanism 12 includes a mounting frame 13, which is fixed to the output end of the robotic arm 2. Two guide rods 14 are fixedly connected between the two sides of the mounting frame 13. Two slides 15 are installed between the two guide rods 14. Adsorption plates 16 are fixedly connected to the bottom of each slide 15. Multiple suction cups 17 are fixedly installed on the bottom of each adsorption plate 16. The suction cups 17 are connected to the negative pressure device through pipes and are used to adsorb PCBs.

[0024] In particular, the slide 15 is slidably sleeved between the two guide rods 14. One side of the slide 15 is threaded with a through-hole No. I set screw 18. The No. I set screw 18 abuts against one of the guide rods 14. When facing PCBs of different sizes, the position of the suction cup 17 can be adjusted by loosening the No. I set screw 18, thereby adsorbing PCBs of different sizes and improving the flexibility of use.

[0025] It should be noted that the conveying mechanism includes two fixed frames 5, both of which are fixed to the surface of the base 4. Multiple through conveying rollers 6 are rotatably connected between the two fixed frames 5. The surface of the conveying rollers 6 is smooth. Adjacent conveying rollers 6 are connected by synchronous pulleys and synchronous belts. A motor 8 is fixedly connected to one side of one of the fixed frames 5. One end of the output shaft of the motor 8 is fixed to one of the conveying rollers 6. When the motor 8 is started, the conveying roller 6 rotates under the action of the motor 8 and the synchronous pulleys and synchronous belts, thereby conveying the PCB.

[0026] In this invention, a protective cover 7 is fixedly connected to one side of one of the fixing frames 5. The motor 8 and the synchronous pulley and synchronous belt are all located inside the protective cover 7. The protective cover 7 shields the motor 8 and the synchronous pulley and synchronous belt, thereby improving the safety of use.

[0027] Specifically, the centering mechanism 26 includes a drive frame 28, two slide plates 29, and an arc-shaped pusher 9. The drive frame 28 is rotatably connected to the surface of the base 4. The two slide plates 29 are slidably connected to the surface of the base 4 and are symmetrically arranged. An adjustment frame 30 is slidably connected to the surface of each slide plate 29. Two push rods 31 are fixedly connected to the top of each adjustment frame 30. A connecting rod 32 is rotatably connected between both ends of the drive frame 28 and the two slide plates 29. A drive plate 36 is fixedly connected to one side of one of the slide plates 29. A drive column 37 is rotatably connected to one end of the drive plate 36. The pusher 9 is fixed to the bottom rotating part of the robotic arm 2. An inclined surface 10 is provided at one end of the pusher 9. The inclined plane 10 works in conjunction with the drive column 37. The push plate 9 pushes the drive plate 36 to move. The drive plate 36 drives the drive frame 28 to rotate through the connecting rod 32, which in turn makes the two drive plates 36 move closer to each other. The drive plate 36 then drives the adjusting frame 30 and the push rod 31 to move closer to each other, thereby moving the PCB towards the center of the conveying roller 6, keeping the PCB position within the error range, and facilitating its processing. One end of each drive frame 28 is threaded with a through No. II set screw 39. The No. II set screw 39 abuts against the adjusting frame 30. Loosening the No. II set screw 39 can adjust the position of the adjusting frame 30, thereby changing the position of the push rod 31, which is convenient for pushing PCBs of different sizes.

[0028] It should be noted that two fixing plates 33 are fixedly connected to the surface of the base 4. A through rod 34 is slidably connected to one side of each fixing plate 33. One end of the rod 34 is fixed to the same slide plate 29. A fourth spring 35 is installed between the fixing plate 33 and the adjacent slide plate 29 through a spring seat. The fourth spring 35 is used to push the push rods 31 on both sides to reset.

[0029] In this invention, the limiting mechanism 27 includes two slide rods 40, both of which slide through the top of the base 4. A limiting plate 43 is fixedly connected between the tops of the slide rods 40. The limiting plate 43 is used to block the PCB and keep it horizontal. A pressure plate 41 is fixedly connected to one side of each slide rod 40. The pressure plate 41 is inclined and the two pressure plates 41 are symmetrical. A pressure rod 38 is fixedly connected to one side of each drive frame 28. The two pressure rods 38 cooperate with the two pressure plates 41 respectively. A No. III spring 42 is installed between the slide rod 40 and the base 4 through a spring seat. When the two drive frames 28 approach each other, they also drive the pressure rod 38 to move. The pressure rod 38 pushes the slide rod 40 downward through the pressure plate 41, thereby causing the limiting plate 43 to disengage from the limiting of the PCB, so that the PCB is sent out.

[0030] The advantages of Example 2 over Example 1 are: 1. The suction cup 17 can be adjusted in position, which allows for the adsorption of PCBs of different sizes, thus improving the flexibility of use. 2. After the PCB is placed on the conveyor roller 6, it can be pushed to the middle of the conveyor roller 6 by the push rod 31, so that the PCB can be kept in the center during exposure and the accuracy can be improved. Third, the PCB is limited by the limiting plate 43, so that the PCB can be continued to be conveyed only after it is horizontal, which is convenient for use.

[0031] Working principle: When in use, the PCBs to be processed are neatly stacked in the placement slot on the placement table 3. The sides and bottom of the placement slot are inclined so that the PCBs can be placed vertically. When the PCBs are transferred, the output end of the robotic arm 2 drives the adsorption mechanism 12 to rotate to one side of the PCB. The PCB is adsorbed by the suction cup 17 and then transferred to the conveyor roller 6. The conveyor roller 6 rotates under the action of the motor 8 and the synchronous belt of the synchronous wheel, thereby conveying the PCBs. When the robotic arm 2 moves the suction cup 17, the rotating part at its bottom drives the push plate 11 to rotate. After the push plate 11 contacts the sliding frame 20, it pushes it to move. The sliding frame 20 drives the guide rail 22 to move. The guide rail 22 drives the clamping frame 23 and the pressure plate 24 to move, thereby making the pressure plate 24 move away from the PCB and place the suction cup 17 to adsorb it. However, because the PCB is close to the outside, after the outer PCB is quickly removed, the PCB below is prone to move under the action of negative pressure, resulting in unevenness. This can easily cause changes in the loading position or unstable adsorption of the PCB. However, after the robotic arm 2 rotates and drives the push plate 11 away from the sliding frame 20, the sliding frame 20 can be reset under the action of the No. I spring 21, thereby driving the clamping frame 23 and the pressure plate 24 to reset, thereby aligning the PCB on the placement table 3, making it easier to transfer and improving the stability and accuracy of adsorption. When the PCB is placed on the conveyor roller 6, it is blocked by the limiting plate 43, which keeps one end of it horizontal to prevent tilting. When the robotic arm 2 rotates again to pick up the material, it drives the push plate 9 to push the drive plate 36 to move. The drive plate 36 drives the drive frame 28 to rotate through the connecting rod 32, which makes the two drive plates 36 move closer to each other. The drive plate 36 then drives the adjusting frame 30 and the push rod 31 to move closer to each other, thereby moving the PCB towards the middle of the conveyor roller 6. At the same time, the push rods 31 on both sides do not clamp the PCB. One of the push rods 31 maintains a gap with the PCB to prevent it from affecting the PCB's conveying. When the two drive frames 28 move closer to each other, they also drive the pressure rod 38 to move. The pressure rod 38 pushes the slide rod 40 downward through the pressure plate 41, which in turn causes the limiting plate 43 to disengage from the limiting plate of the PCB, allowing the PCB to be sent out.

[0032] Regarding the specific working principles and circuit connection methods of the robotic arm 2 and the motor 8, given that these are conventional technical means in the field, those skilled in the art can choose to adapt them according to specific application scenarios and conventional designs, and will not be described in detail here. It should be noted that the above adaptation operations should conform to well-known technical standards in the field and should not exceed the scope of the combination of technical features defined in the claims of this application.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic PCB exposure and take-up / take-up device, comprising a robotic arm (2) fixed to the surface of a substrate (1), a placement stage (3), and a base (4), characterized in that, The top of the placement platform (3) is provided with a placement slot for placing PCBs, the output end of the robotic arm (2) is equipped with an adsorption mechanism (12) for transferring PCBs, and the surface of the base (4) is equipped with a conveying mechanism for conveying PCBs. It also includes a pushing mechanism set on one side of the placement table (3), which aligns the PCB. The pushing mechanism includes a slide (19) on one side of the placement table (3) and a push plate (11) fixed to the bottom rotating part of the robotic arm (2). A sliding frame (20) is slidably connected in the slide (19). A guide rail (22) is fixedly connected to the top of the sliding frame (20). A clamping frame (23) is slidably connected in the guide rail (22). A pressure plate (24) is fixedly connected to one side of the clamping frame (23). A No. II spring (25) is installed between the clamping frame (23) and the guide rail (22) through a spring seat. A No. I spring (21) is installed between the sliding frame (20) and the slide (19) through a spring seat. When the push plate (11) rotates with the bottom rotating part of the robotic arm (2), it pushes the sliding frame (20) away from the PCB. A centering mechanism (26) is disposed on the surface of the base (4) for pushing the PCB toward the center of the conveying mechanism; A limiting mechanism (27) is provided on the surface of the base (4) for limiting the PCB.

2. The PCB automatic exposure and take-up / take-up equipment according to claim 1, characterized in that, The adsorption mechanism (12) includes a mounting frame (13), which is fixed to the output end of the robotic arm (2). Two guide rods (14) are fixedly connected between the two sides of the mounting frame (13), and two slides (15) are installed between the two guide rods (14). Adsorption plates (16) are fixedly connected to the bottom of each slide (15), and multiple suction cups (17) are fixedly installed at the bottom of each adsorption plate (16).

3. The PCB automatic exposure and take-up / take-up equipment according to claim 2, characterized in that, The slide block (15) is slidably sleeved between two guide rods (14). One side of the slide block (15) is threaded with a through No. I set screw (18), which abuts against one of the guide rods (14).

4. The PCB automatic exposure and take-up / take-up equipment according to claim 1, characterized in that, The conveying mechanism includes two fixed frames (5), both fixed frames (5) are fixed on the surface of the base (4), and multiple through conveying rollers (6) are rotatably connected between the two fixed frames (5). The surface of the conveying rollers (6) is smooth.

5. A PCB automatic exposure and take-up / take-up device according to claim 4, characterized in that, The two adjacent conveyor rollers (6) are connected by a synchronous pulley and synchronous belt drive. One side of one of the fixed frames (5) is fixedly connected to a motor (8), and one end of the output shaft of the motor (8) is fixed to one of the conveyor rollers (6).

6. The PCB automatic exposure and take-up / take-up equipment according to claim 5, characterized in that, One of the fixed frames (5) is fixedly connected to a protective cover (7) on one side, and the motor (8) and the synchronous pulley and synchronous belt are located inside the protective cover (7).

7. The PCB automatic exposure and take-up / take-up equipment according to claim 1, characterized in that, The centering mechanism (26) includes a drive frame (28), two slide plates (29), and an arc-shaped push plate (9). The drive frame (28) is rotatably connected to the surface of the base (4). The two slide plates (29) are slidably connected to the surface of the base (4) and are symmetrically arranged. An adjustment frame (30) is slidably connected to the surface of each slide plate (29). Two push rods (31) are fixedly connected to the top of each adjustment frame (30). Connecting rods (32) are rotatably connected between both ends of the drive frame (28) and the two slide plates (29). One of the slide plates (29) is fixedly connected to a drive plate (36) on one side. One end of the drive plate (36) is rotatably connected to a drive column (37). The push plate (9) is fixed to the bottom rotating part of the robotic arm (2). One end of the push plate (9) is provided with an inclined surface (10). The push plate (9) is used in conjunction with the drive column (37) through the inclined surface (10). One end of the drive frame (28) is threaded with a through No. II set screw (39). The No. II set screw (39) abuts against the adjustment frame (30) respectively.

8. A PCB automatic exposure and take-up / take-up device according to claim 7, characterized in that, Two fixing plates (33) are fixedly connected to the surface of the base (4). A through rod (34) is slidably connected to one side of each fixing plate (33). One end of the rod (34) is fixed to the same slide plate (29). A fourth spring (35) is installed between the fixing plate (33) and the adjacent slide plate (29) through a spring seat.

9. A PCB automatic exposure and take-up / take-up device according to claim 7, characterized in that, The limiting mechanism (27) includes two slide rods (40), both slide rods (40) slide through the top of the base (4), a limiting plate (43) is fixedly connected between the tops of the slide rods (40), and a pressure plate (41) is fixedly connected to one side of each slide rod (40).

10. A PCB automatic exposure and take-up / take-up device according to claim 9, characterized in that, The pressure plate (41) is inclined and the two pressure plates (41) are symmetrical. One side of the drive frame (28) is fixedly connected with a pressure rod (38). The two pressure rods (38) are used in conjunction with the two pressure plates (41) respectively. The slide rod (40) and the base (4) are both connected by a No. III spring (42) through a spring seat.

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