Vacuum chuck device for FPC (Flexible Printed Circuit) detection

Abstract

The utility model discloses a vacuum chuck device for FPC detection, which comprises a chuck main body, a plurality of groups of suction nozzles and connecting structures thereof are uniformly mounted on the chuck main body, a supporting column and a stabilizing frame are fixedly arranged on the surface of the chuck main body, a mechanical arm connecting disc is fixed at the top of the stabilizing frame in a threaded connection manner, and two groups of positioning holes are symmetrically formed in the mechanical arm connecting disc. The suction cup body comprises an edge adjusting channel formed in the surface of the suction cup body, and a suction nozzle and a connecting structure thereof are installed in the edge adjusting channel. According to the vacuum chuck device for FPC detection, the position adjusting track is composed of four sets of edge adjusting channels, a middle adjusting channel A and a middle adjusting channel B, the position of a suction nozzle on a chuck can be freely adjusted, an optimal adsorption point can be conveniently found, when the suction nozzle adsorbs a base material, the suction nozzle is located in an effective adsorption area of the base material, it is guaranteed that the suction force is not uniform, and the adsorption efficiency is improved. And falling caused by gravity, air disturbance or inertia of movement of the mechanical arm is avoided.

Description

Technical Field

[0001] This utility model relates to the field of FPC processing, specifically to a vacuum chuck device for FPC inspection. Background Technology

[0002] FPC (Flexible Printed Circuit) is an electronic connection component made of polyimide (PI) or polyester film (PET) as the substrate. It is thin, flexible, and resistant to high and low temperatures. It is widely used in mobile phones, laptops, smart wearable devices, automotive electronics and other products, and is responsible for signal transmission between components. Compared with traditional rigid PCBs, the core feature of FPC is its flexibility and deformability. Its thickness is usually only 0.05 to 0.3 mm, which can adapt to complex installation spaces. However, this also means that the requirements for stress and positioning accuracy during the processing are extremely high.

[0003] In the FPC lamination process, the substrate is bonded to the surface of the FPC. The substrate includes, but is not limited to, cover film or reinforcing sheet. The FPC must first be fixed, and then the substrate is precisely aligned and bonded to the FPC using a vacuum suction cup on a robotic arm. This process requires the use of a vacuum suction cup and a robotic arm to adsorb and move the FPC substrate. However, in actual use, it is not possible to freely adjust the position of the vacuum nozzle on the suction cup according to the actual specifications of the FPC board and reinforcing sheet, and it is impossible to find the optimal adsorption point. As a result, when the nozzle adsorbs the substrate, the position of the nozzle deviates from the center of gravity or the effective adsorption area of ​​the substrate, which leads to uneven suction distribution. During the adsorption process, the reinforcing sheet may fall off due to gravity, air disturbance, or the inertia of the robotic arm movement, or it may shift before being transferred to the FPC lamination position. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum suction cup device for FPC testing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a vacuum suction cup device for FPC inspection is provided, comprising a suction cup body, on which multiple sets of suction nozzles and their connecting structures are evenly installed. A support column and a stabilizer are fixedly disposed on the surface of the suction cup body. A robotic arm connecting plate is screwed to the top of the stabilizer. Two sets of positioning holes are symmetrically opened on the robotic arm connecting plate. The suction cup body includes an edge adjustment channel opened on its surface. A suction nozzle and its connecting structure are installed inside the edge adjustment channel. A screw is disposed on the suction nozzle and its connecting structure. The screw passes through the inside of the edge adjustment channel. A suction nozzle is fixedly disposed at the bottom of the screw.

[0006] Furthermore, four sets of support columns are evenly installed on the surface of the suction cup body, the robotic arm connecting plate is square, and the bottom of the robotic arm connecting plate is fixedly mounted on the suction cup body by the four sets of support columns.

[0007] Furthermore, the suction cup body also includes a central adjustment channel A, a limiting piece, and a central adjustment channel B. Four sets of edge adjustment channels are evenly opened on the outer side of the suction cup body. The edge adjustment channels are arc-shaped. Eight sets of limiting pieces are evenly arranged on the inner circumference of the suction cup body. The limiting pieces are fan-shaped.

[0008] Furthermore, the eight sets of limiting plates are supported and fixed together by a stabilizing frame. The stabilizing frame has a U-shaped cross-section and a circular top plate.

[0009] Furthermore, the central adjustment channel A and the central adjustment channel B are distributed alternately, and four sets of central adjustment channels A and B are evenly arranged. The widths of the edge adjustment channel, the central adjustment channel A, and the central adjustment channel B are consistent. The four sets of edge adjustment channels, central adjustment channel A, and central adjustment channel B are combined together to form the position adjustment track of the nozzle and its connecting structure.

[0010] Furthermore, the nozzle and its connecting structure also include a vacuum tube docking sleeve, a nut, a gasket, and a support plate. A support plate is installed at the bottom of the screw, and a gasket is sleeved on the outside of the screw. The support plate covers the bottom of the edge adjustment channel. The screw passes through the edge adjustment channel and is screwed and fixed with the nut. The screw is hollow, and a vacuum tube docking sleeve is fixedly installed at the top of the screw. The vacuum tube docking sleeve is connected to an external vacuum tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the position of the suction nozzle on the suction cup body can be arbitrarily adjusted by the position adjustment track. The position adjustment track consists of four sets of edge adjustment channels, central adjustment channel A and central adjustment channel B, which can freely adjust the position of the suction nozzle on the suction cup, making it easier to find the optimal adsorption point. This ensures that when the suction nozzle adsorbs the substrate, the position of the suction nozzle is in the effective adsorption area of ​​the substrate, ensuring uneven suction and preventing it from falling off due to gravity, air disturbance or the inertia of the robotic arm. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A bottom view;

[0014] Figure 3 for Figure 1 Side view;

[0015] Figure 4 This is a schematic diagram of the main body of the suction cup structure of this utility model;

[0016] Figure 5 for Figure 1 Top view.

[0017] The following are the labeling elements in the diagram: 1. Suction cup body; 11. Edge adjustment channel; 12. Central adjustment channel A; 13. Limiting plate; 14. Central adjustment channel B; 2. Suction nozzle and its connecting structure; 21. Vacuum tube docking cylinder; 22. Screw; 23. Nut; 24. Washer; 25. Suction nozzle; 26. Support plate; 3. Support column; 4. Robotic arm connecting plate; 41. Positioning hole; 5. Stabilizer; 51. Top plate. Detailed Implementation

[0018] Please see Figure 1-5 This utility model provides a vacuum suction cup device for FPC testing, including a suction cup body 1. Multiple sets of suction nozzles and their connecting structures 2 are evenly installed on the suction cup body 1. A support column 3 and a stabilizer 5 are fixedly provided on the surface of the suction cup body 1. A mechanical arm connecting plate 4 is screwed to the top of the stabilizer 5. Two sets of positioning holes 41 are symmetrically opened on the mechanical arm connecting plate 4. The suction cup body 1 includes an edge adjustment channel 11 opened on its surface. The suction nozzles and their connecting structures 2 are installed inside the edge adjustment channel 11. A screw 22 is provided on the suction nozzles and their connecting structures 2. The screw 22 passes through the inside of the edge adjustment channel 11. A suction nozzle 25 is fixedly provided at the bottom of the screw 22.

[0019] Working principle: In actual use, the positioning hole 41 on the robotic arm connecting plate 4 is used to connect with the robotic arm. The robotic arm operates the suction cup body 1, so that the suction cup body 1 adsorbs the substrate and attaches it to the fixed FPC. Multiple sets of suction nozzles 25 are evenly arranged on the bottom of the suction cup body 1. The suction nozzles 25 are used to adsorb the substrate. The position of the suction nozzles 25 on the suction cup body 1 can be arbitrarily adjusted by the position adjustment track. The position adjustment track consists of four sets of edge adjustment channels 11, middle adjustment channel A12 and middle adjustment channel B14. The position of the suction nozzles 25 on the suction cup can be freely adjusted to find the best adsorption point. When the suction nozzles 25 adsorb the substrate, the position of the suction nozzles 25 is in the effective adsorption area of ​​the substrate, ensuring uneven suction and preventing them from falling off due to gravity, air disturbance or the inertia of the robotic arm movement.

[0020] In a preferred embodiment, four sets of support columns 3 are evenly installed on the surface of the suction cup body 1, and the robotic arm connecting plate 4 is square. The bottom of the robotic arm connecting plate 4 is fixedly mounted on the suction cup body 1 by the four sets of support columns 3.

[0021] The suction cup body 1 also includes a central adjustment channel A12, a limiting piece 13 and a central adjustment channel B14. Four sets of edge adjustment channels 11 are evenly opened on the outer side of the suction cup body 1. The edge adjustment channels 11 are arc-shaped. Eight sets of limiting pieces 13 are evenly arranged on the inner circumference of the suction cup body 1. The limiting pieces 13 are fan-shaped.

[0022] The eight sets of limiting plates 13 are supported and fixed by a stabilizing frame 5. The stabilizing frame 5 has a U-shaped cross section and a circular top plate 51.

[0023] The central adjustment channels A12 and B14 are distributed alternately, and four sets of central adjustment channels A12 and B14 are evenly arranged. The widths of the edge adjustment channels 11, central adjustment channels A12 and B14 are the same. The four sets of edge adjustment channels 11, central adjustment channels A12 and central adjustment channels B14 are combined together to form the position adjustment track of the nozzle and its connecting structure 2.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown: The position adjustment method of the suction nozzle 25 at the bottom of the suction cup body 1 is as follows: the screw 22 slides inside the edge adjustment channel 11, the middle adjustment channel A12 and the middle adjustment channel B14. After the position adjustment of the screw 22 is completed, tighten the nut 23 to complete the limiting and fixing work of the suction nozzle 25.

[0025] In a preferred embodiment, the nozzle and its connecting structure 2 further include a vacuum tube docking cylinder 21, a nut 23, a gasket 24, and a support plate 26. The support plate 26 is installed at the bottom of the screw 22, and the gasket 24 is sleeved on the outside of the screw 22. The support plate 26 covers the bottom of the edge adjustment channel 11. The screw 22 passes through the edge adjustment channel 11 and is screwed and fixed with the nut 23. The screw 22 is hollow, and the vacuum tube docking cylinder 21 is fixedly installed at the top of the screw 22. The vacuum tube docking cylinder 21 is connected to the external vacuum tube.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown: Different substrates have different shapes, sizes, and materials, and their optimal adsorption points also vary. Through a track consisting of four sets of edge adjustment channels 11, center adjustment channels A12 and B14, the suction nozzle 25 can be adjusted to any position on the suction cup body 1 to match the adsorption needs of various substrates. For example, for small, irregularly shaped substrates, the suction nozzle 25 can be adjusted to the edge or a specific local position; for large, regular substrates, it can be adjusted to the center or a uniformly distributed position, eliminating the need to design separate suction cups for different substrates and reducing equipment costs. Finding the optimal adsorption point ensures that the substrate is subjected to uniform force during adsorption and transfer, reducing problems such as substrate detachment, tilting, or deformation caused by unstable adsorption. Especially for fragile and easily damaged substrates, precise adjustment of the suction nozzle 25 position can prevent excessive local force. This design minimizes damage and improves operational safety. After the suction cup adsorbs the substrate, it needs to be attached to a fixed FPC. Adjusting the position of the suction nozzle 25 ensures the substrate's stable posture during transfer, thereby improving alignment accuracy when attaching to the FPC. This avoids attachment deviations caused by substrate position shifts, reducing defect rates and improving overall work quality. Since the same suction cup can be adjusted to adapt to various working conditions, there is no need to stock multiple specifications of suction cups, reducing equipment spare parts inventory costs. At the same time, the adjustable suction nozzle 25 extends the service life of the suction cup body 1, reducing maintenance and replacement costs caused by frequent suction cup replacements. Through a flexible position adjustment mechanism, it performs excellently in terms of adaptability, stability, accuracy, efficiency, and cost control, effectively improving the overall performance of the robotic arm operating the suction cup for substrate adsorption and attachment.

Claims

1. A vacuum suction cup device for FPC inspection, comprising a suction cup body (1), characterized in that: Multiple sets of suction nozzles and their connecting structures (2) are evenly installed on the suction cup body (1). Support columns (3) and stabilizers (5) are fixedly installed on the surface of the suction cup body (1). A mechanical arm connecting plate (4) is screwed to the top of the stabilizer (5). Two sets of positioning holes (41) are symmetrically opened on the mechanical arm connecting plate (4). The suction cup body (1) includes an edge adjustment channel (11) opened on its surface. A suction nozzle and its connecting structure (2) are installed inside the edge adjustment channel (11). A screw (22) is provided on the suction nozzle and its connecting structure (2). The screw (22) is inserted inside the edge adjustment channel (11). A suction nozzle (25) is fixedly installed at the bottom of the screw (22).

2. The vacuum chuck device for FPC inspection according to claim 1, characterized in that: The surface of the suction cup body (1) is uniformly equipped with four sets of support columns (3), the mechanical arm connecting plate (4) is square, and the bottom of the mechanical arm connecting plate (4) is fixed on the suction cup body (1) by the four sets of support columns (3).

3. The vacuum chuck device for FPC inspection according to claim 1, characterized in that: The suction cup body (1) also includes a central adjustment channel A (12), a limiting piece (13) and a central adjustment channel B (14). Four sets of edge adjustment channels (11) are evenly opened on the outer side of the suction cup body (1). The edge adjustment channels (11) are arc-shaped. Eight sets of limiting pieces (13) are evenly arranged on the inner circumference of the suction cup body (1). The limiting pieces (13) are fan-shaped.

4. The vacuum chuck device for FPC inspection according to claim 3, characterized in that: The eight sets of limiting plates (13) are supported and fixed by a stabilizing frame (5). The stabilizing frame (5) has a U-shaped cross section and a circular top plate (51) on the top of the stabilizing frame (5).

5. The vacuum chuck device for FPC inspection according to claim 3, characterized in that: The central adjustment channel A (12) and central adjustment channel B (14) are distributed alternately, and four sets of central adjustment channels A (12) and B (14) are evenly arranged. The widths of the edge adjustment channel (11), central adjustment channel A (12) and central adjustment channel B (14) are consistent. The four sets of edge adjustment channels (11), central adjustment channel A (12) and central adjustment channel B (14) are combined together to form the position adjustment track of the nozzle and its connecting structure (2).

6. The vacuum chuck device for FPC inspection according to claim 1, characterized in that: The nozzle and its connecting structure (2) also include a vacuum tube docking cylinder (21), a nut (23), a gasket (24) and a support plate (26). The support plate (26) is installed at the bottom of the screw (22), and the gasket (24) is sleeved on the outside of the screw (22). The support plate (26) covers the bottom of the edge adjustment channel (11). The screw (22) passes through the edge adjustment channel (11) and is screwed and fixed with the nut (23). The screw (22) is hollow. The vacuum tube docking cylinder (21) is fixedly installed at the top of the screw (22). The vacuum tube docking cylinder (21) is connected to the vacuum tube in the outside.

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