Lifting device for pretreatment and aftertreatment of VCP plating line

Abstract

The invention relates to the technical field of VCP plating line pre-treatment and post-treatment lifting devices, in particular to a VCP plating line pre-treatment and post-treatment lifting device which comprises a clamping assembly, a lead screw motor is arranged on one side of the clamping assembly, an opening and closing lead screw is inserted into the end of the inner side of the lead screw motor, the opening and closing lead screw is separated from the middle, threads on the two sides of the opening and closing lead screw are opposite, and the opening and closing lead screw is inserted into the clamping assembly. The opening and closing screw rod is inserted into the middle of the bottom of the clamping assembly; the VCP electroplating line pretreatment and aftertreatment lifting device has the beneficial effects that when a PCB is clamped, a lead screw motor is started firstly according to the width of the PCB, the lead screw motor drives an opening and closing lead screw to rotate, the opening and closing lead screw drives connecting plates connected to the two sides in a sliding mode through rotation to start opening and closing movement of the PCB, and then the PCB is clamped; the connecting plate drives the L-shaped clamping plate to slide, so that the clamping groove in the inner side of the L-shaped clamping plate can be tightly attached to the two sides of the PCB, and then the PCB is fed into the clamping groove along the opening in the bottom of the clamping groove in the inner side of the L-shaped clamping plate.

Description

Technical Field

[0001] This invention relates to the technical field of lifting devices for pre- and post-treatment processes of VCP electroplating lines, specifically a lifting device for pre- and post-treatment processes of VCP electroplating lines. Background Technology

[0002] In vertical continuous plating (VCP) lines, the pre- and post-processing stations commonly employ lifting devices to sequentially feed / remove PCB boards into / from descaling, activation, acceleration, pre-immersion, and various rinsing tanks. A typical structure, as described in Chinese utility model CN210123456U, involves a lifting frame fixed to the top beam of the line, driven by a servo motor and ball screw; the clamping unit uses double-sided fixed grippers, with clamping / releasing actions achieved via a pneumatic slide. This solution can meet basic functional requirements in mass production with fixed board thickness and uniform dimensions.

[0003] However, the existing VCP electroplating line's pre- and post-processing lifting devices have fixed-span grippers (common specifications are 250mm, 300mm, and 350mm), which can only accommodate PCBs within that span range. When the production line switches to different board widths, the entire gripper mounting plate must be replaced and the level recalibrated, resulting in a changeover time of ≥30 minutes. For small-batch, multi-variety orders, frequent changeovers directly reduce the overall equipment uptime. Summary of the Invention

[0004] The purpose of this invention is to provide a lifting device for the pre- and post-processing of a VCP electroplating line to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clamping assembly, wherein a lead screw motor is provided on one side of the clamping assembly, and an opening and closing lead screw is inserted into the inner end of the lead screw motor. The opening and closing lead screw is split in the middle, and the threads on both sides are opposite. The opening and closing lead screw is inserted into the middle of the bottom of the clamping assembly. Connecting plates are slidably connected to both sides of the opening and closing lead screw. An L-shaped clamping plate is connected to the bottom of the connecting plate. A clamping groove is provided in the middle of the inner side of the L-shaped clamping plate. A second telescopic groove is provided on both sides of the clamping groove of the L-shaped clamping plate. An L-shaped telescopic clamping plate is elastically connected in the second telescopic groove.

[0006] Preferably, a support frame is provided around the top of the machine body, and a drive motor is provided on the outer side of one side of the support frame. A rotating shaft is inserted into the inner end of the drive motor. Multiple sets of fixing blocks are fixedly connected to the rotating shaft, and steel wire ropes are fixed on the fixing blocks. The drive motor can drive the rotating shaft to rotate, so that the rotating shaft can wind and unwind the steel wire ropes through the fixing blocks.

[0007] Preferably, the wire rope rests on a hanger rod installed on one side of the top of the support frame, and a linear motor is installed at the bottom of the upper support plate in the middle of the support frame. The other end of the wire rope is connected to the top middle of the linear motor, and the hanger rod can rotate, reducing the friction force on the wire rope during winding and unwinding.

[0008] Preferably, the top of the machine body is provided with multiple sets of limiting rods on both sides of the linear motor. The limiting rods can limit the linear motor and prevent the linear motor from shaking.

[0009] Preferably, the linear motor has a linear guide rail at its bottom, and multiple sets of sliders are held in the linear guide rail. The bottom of the sliders is connected to a clamping assembly, and the sliders can slide in the linear guide rail, driving the clamping assembly to move laterally.

[0010] Preferably, a second spring is provided in the second telescopic groove on both sides of the clamping groove. The inner side of the second spring is connected to the inner wall of the second telescopic groove, and the outer side of the second spring is connected to the L-shaped telescopic clamping plate. The second spring can drive the L-shaped telescopic clamping plate to extend and retract in the second telescopic groove. Flexible pads are provided on both the inner wall of the clamping groove and the outer surface of the L-shaped telescopic clamping plate.

[0011] Preferably, at the bottom of the vertical rod of the L-shaped clamp, a first telescopic groove is provided below the clamping groove. A first spring is provided in the first telescopic groove. The inner side of the first spring is connected to the inner wall of the first telescopic groove, and the outer side of the first spring is connected to the telescopic bearing block. The first spring is distributed on both sides of the telescopic bearing block, and the first spring can drive the telescopic bearing block to extend and retract in the first telescopic groove.

[0012] Preferably, a connecting block is connected to the middle of the rear end of the telescopic support block. The connecting block extends from the through slot opened at the rear end of the telescopic support block by the L-shaped clamp. A telescopic plate is connected to the outside of the connecting block. The telescopic support block can extend and retract synchronously with the telescopic plate through the connecting block.

[0013] Preferably, the inner side of the L-shaped telescopic clamping plate has multiple sets of limiting slots, which are distributed at the upper and lower ends and the middle of the vertical rod of the L-shaped telescopic clamping plate. Limiting rods are provided at both ends of the inner side of the telescopic plate, and the limiting rods are perpendicular to the limiting slots. The L-shaped clamping plate has through holes at the locations where the limiting rods and limiting slots are parallel, and the limiting rods can be inserted into the corresponding limiting slots through the through holes.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes a lifting device for the pre- and post-processing stages of a VCP electroplating line. When clamping a PCB board, the first step is to start a lead screw motor based on the width of the PCB board. This motor drives the opening and closing lead screw to rotate, which in turn drives the connecting plates slidably connected on both sides to begin opening and closing the PCB board. The connecting plates then drive the L-shaped clamping plate to slide, ensuring that the clamping grooves on the inner side of the L-shaped clamping plate are tightly against both sides of the PCB board. The PCB board is then fed into the clamping groove through the opening at the bottom of the inner clamping groove. At this point, the PCB board is first pressed against the bottom arc surface of the telescopic support block located at the bottom of the clamping groove of the L-shaped clamping plate, forcing the telescopic support block into the first telescopic groove. The telescopic support block then contracts, pushing the connecting block backward synchronously. This backward movement of the connecting block causes the telescopic plate to move backward synchronously, disengaging the limiting rods located at the top and bottom ends and the middle of the inner side of the telescopic plate from the limiting slots, thus releasing the limiting effect on the L-shaped telescopic clamping plate. The device then continues to push the P upward. The CB board causes the PCB board to initially press against the curved surface at the bottom of the L-shaped telescopic clamping plate, causing the L-shaped telescopic clamping plate to retract into the second spring. Once the entire PCB board is fed into the clamping groove and its bottom is positioned above the telescopic support block, the L-shaped telescopic clamping plate clamps the PCB board in the clamping groove through the elasticity of the second spring. The telescopic support block pops out from the first telescopic groove through the elasticity of the first spring and is positioned on both sides of the bottom of the PCB board to prevent the PCB board from slipping out of the clamping groove. At the same time, the telescopic support block pulls the telescopic plate back through the connecting block, causing the limiting rods set at the upper and lower ends and the middle sides of the inner side of the telescopic plate to be inserted into the corresponding limiting slots on the inner side of the L-shaped telescopic clamping plate through the through holes, thus fixing the telescopic movement of the L-shaped telescopic clamping plate and preventing the second spring from causing the L-shaped telescopic clamping plate to extend and retract, which would lead to unstable clamping. Furthermore, the outer surface of the L-shaped telescopic clamping plate and the inner wall of the clamping groove are also provided with flexible pads to prevent damage to the PCB board. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a schematic cross-sectional view of the clamping assembly of the present invention; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This is a schematic cross-sectional view of the clamping assembly of the present invention; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B; Figure 7 This is a schematic diagram of the three-dimensional structure of the L-shaped clamp of the present invention; Figure 8This is a schematic diagram of the cross-sectional structure of the L-shaped clamping plate of the present invention; Figure 9 This is a schematic diagram of the bottom cross-sectional structure of the L-shaped clamp of the present invention.

[0016] In the diagram: 1. Body; 2. Support frame; 3. Drive motor; 4. Rotating shaft; 5. Fixing block; 6. Steel wire rope; 7. Hanging rod; 8. Linear motor; 9. Limiting rod; 10. Linear guide rail; 11. Slider; 12. Clamping assembly; 13. Lead screw motor; 14. Opening and closing lead screw; 15. Connecting plate; 16. L-shaped clamping plate; 17. Clamping groove; 18. First telescopic groove; 19. First spring; 20. Telescopic bearing block; 21. Second telescopic groove; 22. Second spring; 23. L-shaped telescopic clamping plate; 24. Flexible pad; 25. Connecting block; 26. Telescopic plate; 27. Limiting rod; 28. Limiting slot. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1 to 9 The present invention provides a technical solution: a clamping assembly 12, a lead screw motor 13 is provided on one side of the clamping assembly 12, an opening and closing lead screw 14 is inserted into the inner end of the lead screw motor 13, the opening and closing lead screw 14 is split in the middle and the threads on both sides are opposite, the opening and closing lead screw 14 is inserted into the middle of the bottom of the clamping assembly 12, a connecting plate 15 is slidably connected to both sides of the opening and closing lead screw 14, an L-shaped clamping plate 16 is connected to the bottom of the connecting plate 15, a clamping groove 17 is provided in the middle of the inner side of the L-shaped clamping plate 16, a second telescopic groove 21 is provided on both sides of the clamping groove 17 of the L-shaped clamping plate 16, an L-shaped telescopic clamping plate 23 is elastically connected in the second telescopic groove 21; the PCB board begins to press the arc surface of the bottom of the L-shaped telescopic clamping plate 23, causing the L-shaped telescopic clamping plate 23 to retract into the second spring 22.

[0019] The top of the machine body 1 is equipped with a support frame 2. A drive motor 3 is installed on the outer side of one side of the support frame 2. A rotating shaft 4 is inserted into the inner end of the drive motor 3. Multiple sets of fixing blocks 5 are fixedly connected to the rotating shaft 4. A steel wire rope 6 is fixed on the fixing blocks 5. The drive motor 3 can drive the rotating shaft 4 to rotate, so that the rotating shaft 4 can wind and unwind the steel wire rope 6 through the fixing blocks 5. The steel wire rope 6 rests on a hanging rod 7 installed on one side of the top of the support frame 2. A linear motor 8 is installed at the bottom of the upper support plate in the middle of the support frame 2. The other end of the steel wire rope 6 is connected to the top middle of the linear motor 8. The hanging rod 7 can rotate to reduce the friction force on the steel wire rope 6 during winding and unwinding. The top of the machine body 1 has multiple sets of limiting rods 9 on both sides of the linear motor 8. The limiting rods 9 can limit the linear motor 8 to prevent it from shaking. The bottom of the linear motor 8 has a linear guide rail 10. Multiple sets of sliders 11 are held in the linear guide rail 10. The bottom of the sliders 11 is connected to the clamping assembly 12. The sliders 11 can slide in the linear guide rail 10, driving the clamping assembly 12 to move laterally. The second telescopic grooves 21 on both sides of the clamping groove 17 are equipped with second springs 22. The inner side of the second spring 22 is connected to the inner wall of the second telescopic groove 21, and the outer side of the second spring 22 is connected to the L-shaped telescopic clamping plate 23. The second spring 22 can drive the L-shaped telescopic clamping plate 23 to extend and retract in the second telescopic groove 21. The inner wall of the clamping groove 17 and the outer surface of the L-shaped telescopic clamping plate 23 are both equipped with flexible pads 24. The flexible pads 24 on the outer surface of the L-shaped telescopic clamping plate 23 and the inner wall of the clamping groove 17 prevent the PCB board from being damaged.

[0020] At the bottom of the vertical rod of the L-shaped clamping plate 16, below the clamping groove 17, a first telescopic groove 18 is provided. A first spring 19 is provided in the first telescopic groove 18. The inner side of the first spring 19 is connected to the inner wall of the first telescopic groove 18, and the outer side of the first spring 19 is connected to the telescopic support block 20. The first spring 19 is distributed on both sides of the telescopic support block 20, and can drive the telescopic support block 20 to extend and retract in the first telescopic groove 18. The middle of the rear end of the telescopic support block 20 is connected to a connecting block 25. The connecting block 25 extends from the through groove opened at the rear end of the telescopic support block 20 in the L-shaped clamping plate 16. The outer side of the connecting block 25 is connected to the telescopic plate 26. The extension and retraction of the telescopic support block 20 can drive the telescopic plate 26 to extend and retract synchronously through the connecting block 25. The connecting block 25 moves backward, causing the telescopic plate 26 to move backward synchronously, so that the limiting rods 27 set at the upper and lower ends and the middle of the inner sides of the telescopic plate 26 disengage from the limiting slots 28, thereby canceling the limitation on the L-shaped telescopic clamping plate 23.

[0021] The inner side of the L-shaped telescopic clamping plate 23 has multiple sets of limiting slots 28, which are distributed at the upper and lower ends and the middle of the vertical rod of the L-shaped telescopic clamping plate 23. The inner ends of the telescopic plate 26 are provided with limiting rods 27, which are perpendicular to the limiting slots 28. The L-shaped clamping plate 16 has through holes at the positions parallel to the limiting rods 27 and the limiting slots 28, through which the limiting rods 27 can be inserted into the corresponding limiting slots 28. The telescopic bearing block 20 pulls the telescopic plate 26 back through the connecting block 25, so that the limiting rods 27 provided at the upper and lower ends and the middle of the inner side of the telescopic plate 26 can be inserted into the corresponding limiting slots 28 on the inner side of the L-shaped telescopic clamping plate 23 through the through holes, thereby fixing the telescopic movement of the L-shaped telescopic clamping plate 23 and preventing the second spring 22 from causing the L-shaped telescopic clamping plate 23 to telescopically move, which would lead to unstable clamping.

[0022] In actual use, when clamping the PCB board, first, according to the width of the PCB board, start the lead screw motor 13 to drive the opening and closing lead screw 14 to rotate. The opening and closing lead screw 14 drives the connecting plates 15 that are slidably connected on both sides to start the opening and closing movement according to the PCB board. The connecting plates 15 drive the L-shaped clamping plate 16 to slide, so that the clamping groove 17 on the inner side of the L-shaped clamping plate 16 can be tightly against both sides of the PCB board. Then, the PCB board is fed into the clamping groove 17 along the opening at the bottom of the clamping groove 17 on the inner side of the L-shaped clamping plate 16. At this time, The PCB board is first pressed against the bottom arc surface of the telescopic support block 20 set at the bottom of the clamping groove 17 of the L-shaped clamping plate 16, forcing the telescopic support block 20 into the first telescopic groove 18. At this time, the telescopic support block 20 pushes the connecting block 25 to move backward synchronously by contracting. The connecting block 25 drives the telescopic plate 26 to move backward synchronously by moving backward, so that the limiting rods 27 set at the upper and lower ends and the middle of the inner sides of the telescopic plate 26 disengage from the limiting slots 28, thereby removing the limitation on the L-shaped telescopic clamping plate 23. Then, the PCB board continues to be pushed upward, so that the PCB board... The plate begins to press against the arc surface at the bottom of the L-shaped telescopic clamping plate 23, causing the L-shaped telescopic clamping plate 23 to retract into the second spring 22. Once the entire PCB board is fed into the clamping groove 17 and its bottom is positioned above the telescopic support block 20, the L-shaped telescopic clamping plate 23 clamps the PCB board in the clamping groove 17 using the elasticity of the second spring 22. The telescopic support block 20 pops out of the first telescopic groove 18 and is positioned on both sides of the bottom of the PCB board, preventing the PCB board from falling out of the clamping groove 17. As the plate slides down, the telescopic support block 20 pulls the telescopic plate 26 back through the connecting block 25. This causes the limiting rods 27 set at the upper and lower ends and the two sides of the middle of the inner side of the telescopic plate 26 to be inserted into the corresponding limiting slots 28 on the inner side of the L-shaped telescopic clamping plate 23 through the through holes. This fixes the telescopic movement of the L-shaped telescopic clamping plate 23 and prevents the second spring 22 from causing the L-shaped telescopic clamping plate 23 to extend and retract, which would lead to unstable clamping. Furthermore, the outer surface of the L-shaped telescopic clamping plate 23 and the inner wall of the clamping groove 17 are also provided with flexible pads 24 to prevent damage to the PCB board.

[0023] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A lifting device for pre- and post-processing of a VCP electroplating line, characterized in that: include: The clamping assembly (12) has a lead screw motor (13) on one side. The lead screw motor (13) has an opening and closing lead screw (14) inserted into its inner end. The opening and closing lead screw (14) is split in the middle and the threads on both sides are opposite. The opening and closing lead screw (14) is inserted into the middle of the bottom of the clamping assembly (12). The two sides of the opening and closing lead screw (14) are slidably connected to the connecting plate (15). The bottom of the connecting plate (15) is connected to the L-shaped clamping plate (16). The middle of the inner side of the L-shaped clamping plate (16) has a clamping groove (17). The L-shaped clamping plate (16) has a second telescopic groove (21) on both sides of the clamping groove (17). The L-shaped telescopic clamping plate (23) is elastically connected in the second telescopic groove (21).

2. The VCP electroplating line pre- and post-processing lifting device according to claim 1, characterized in that: The top of the machine body (1) is provided with a support frame (2). A drive motor (3) is provided on the outer side of one side of the support frame (2). A rotating shaft (4) is inserted into the inner end of the drive motor (3). Multiple sets of fixing blocks (5) are fixedly connected to the rotating shaft (4). A steel wire rope (6) is fixed on the fixing block (5). The drive motor (3) can drive the rotating shaft (4) to rotate, so that the rotating shaft (4) can wind and unwind the steel wire rope (6) through the fixing block (5).

3. The VCP electroplating line pre- and post-processing lifting device according to claim 2, characterized in that: The wire rope (6) rests on the sling (7) set on the top side of the support frame (2). A linear motor (8) is set at the bottom of the upper support plate in the middle of the support frame (2). The other end of the wire rope (6) is connected to the top middle of the linear motor (8). The sling (7) can rotate, reducing the friction force on the wire rope (6) during winding and unwinding.

4. The VCP electroplating line pre- and post-processing lifting device according to claim 3, characterized in that: The top of the machine body (1) is provided with multiple sets of limiting rods (9) on both sides of the linear motor (8). The limiting rods (9) can limit the linear motor (8) and prevent the linear motor (8) from shaking.

5. The VCP electroplating line pre- and post-processing lifting device according to claim 4, characterized in that: The linear motor (8) has a linear guide rail (10) at its bottom. Multiple sliders (11) are held in the linear guide rail (10). The bottom of the sliders (11) is connected to the clamping assembly (12). The sliders (11) can slide in the linear guide rail (10) and drive the clamping assembly (12) to move laterally.

6. The VCP electroplating line pre- and post-processing lifting device according to claim 5, characterized in that: A second spring (22) is provided in the second telescopic groove (21) opened on both sides of the clamping groove (17). The inner side of the second spring (22) is connected to the inner wall of the second telescopic groove (21), and the outer side of the second spring (22) is connected to the L-shaped telescopic clamping plate (23). The second spring (22) can drive the L-shaped telescopic clamping plate (23) to extend and retract in the second telescopic groove (21). The inner wall of the clamping groove (17) and the outer surface of the L-shaped telescopic clamping plate (23) are provided with flexible pads (24).

7. The VCP electroplating line pre- and post-processing lifting device according to claim 6, characterized in that: At the bottom of the vertical rod of the L-shaped clamp (16), a first telescopic groove (18) is provided below the clamping groove (17). A first spring (19) is provided in the first telescopic groove (18). The inner side of the first spring (19) is connected to the inner wall of the first telescopic groove (18), and the outer side of the first spring (19) is connected to the telescopic bearing block (20). The first spring (19) is distributed on both sides of the telescopic bearing block (20). The first spring (19) can drive the telescopic bearing block (20) to extend and retract in the first telescopic groove (18).

8. The VCP electroplating line pre- and post-processing lifting device according to claim 7, characterized in that: The telescopic support block (20) is connected to a connecting block (25) at the middle of its rear end. The connecting block (25) extends from the through slot opened at the rear end of the telescopic support block (20) by the L-shaped clamp (16). The telescopic plate (26) is connected to the outside of the connecting block (25). The telescopic support block (20) can extend and retract synchronously by driving the telescopic plate (26) through the connecting block (25).

9. A VCP electroplating line pre- and post-processing lifting device according to claim 8, characterized in that: The inner side of the L-shaped telescopic clamping plate (23) has multiple sets of limiting slots (28). The limiting slots (28) are distributed at the upper and lower ends and the middle of the vertical rod of the L-shaped telescopic clamping plate (23). The inner ends of the telescopic plate (26) are provided with limiting rods (27). The limiting rods (27) are perpendicular to the limiting slots (28). The L-shaped clamping plate (16) has through holes at the locations parallel to the limiting rods (27) and the limiting slots (28). The limiting rods (27) can be inserted into the corresponding limiting slots (28) through the through holes.

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