FPC bending forming device

Abstract

The utility model discloses an FPC (Flexible Printed Circuit) bending forming device, which comprises a main body structure, the main body structure comprises a substrate, a support column and a top plate, the substrate is provided with a processing table for FPC bending operation, and the processing table is provided with a bending groove; the positioning mechanism is arranged on the substrate and is used for positioning the FPC; the actuating mechanism is arranged on the top plate and is used for bending; the positioning mechanism comprises baffles symmetrically arranged on the two sides of the machining table and positioning blocks on one sides of the baffles. The executing mechanism comprises a hydraulic cylinder fixedly installed in the center of the top plate and a lifting plate driven by the hydraulic cylinder. Compared with the prior art, the FPC bending device has the advantages that a good positioning function can be achieved when the FPC is bent, displacement of the FPC in the machining process is avoided, the bending machining precision of the FPC is improved, on the other hand, the two ends of the FPC can be retracted inwards along with bending due to the fact that the FPC is fixed in a sliding mode, damage to the FPC in the bending process is avoided, and defective products are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC bending equipment, in particular to an FPC bending and forming device. Background Art

[0002] Flexible printed circuit board, referred to as FPC, is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness and good bendability.

[0003] The FPC can be bent at a suitable bending angle to avoid stretching or compression of the circuit board, thereby reducing the stress and deformation of the circuit board. After searching, the Chinese patent application number is: CN201911322187.6 discloses an FPC bending and forming device, which includes a pressing module, a forming module, a forming part, and a bearing platform. The pressing module includes a middle plate, a pressing plate and a guide assembly. The forming module includes a pressing head, a slider and a stopper. The forming part includes a main body and a forming part. The bearing platform includes a bearing part and a step part. The pressing plate moves vertically downward in a straight line, driving the pressing head to press against the pressure. The FPC is positioned on the bearing portion and the forming portion is driven to press the facing FPC onto the step portion. The stopper pushes the forming portion of the forming piece fixed to the slider to slide toward the wedge-shaped structure of the step portion through the vertical downward linear motion of the middle plate, thereby bending the FPC to form a bending shape consistent with the wedge-shaped structure, so that the bent FPC rebounds to just reach the required angle, ensuring that it meets the installation requirements. The invention also provides an FPC bending and forming device, which simplifies the FPC bending process, improves bending efficiency, has high precision, is easy to operate, has a simple structure, and greatly improves production efficiency.

[0004] The above technical solution lacks a positioning mechanism, which causes the FPC to easily change its position during the bending operation. Not only is the bending accuracy low, but the FPC is also easily damaged, which affects the performance and reliability of the electronic equipment. Therefore, we need to propose an FPC bending and forming device. Utility Model Content

[0005] The purpose of the utility model is to provide an FPC bending and forming device. By setting a positioning mechanism, it can not only play a good positioning function when the FPC is bent, avoid displacement during the FPC processing, and improve the accuracy of the FPC bending processing, but also adopt a sliding fixed FPC to shrink both ends as the bending proceeds, and will not cause damage to the FPC during the bending process, thereby avoiding the occurrence of defective products, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An FPC bending and forming device comprises a main structure, wherein the main structure comprises a base plate, a pillar welded on the base plate, and a top plate welded on the upper end of the pillar, wherein a processing table for FPC bending operation is arranged on the base plate, and a bending groove is arranged on the processing table;

[0008] Also included is a positioning mechanism disposed on the substrate for positioning the FPC;

[0009] Also included is an actuator for bending arranged on the top plate;

[0010] The positioning mechanism includes baffles symmetrically arranged on both sides of the processing table and a positioning block on one side of the baffle, a positioning groove for positioning the side edge of the FPC is opened on one side of the positioning block, a clamping plate is slidably installed in the positioning groove, a positioning screw is rotatably installed on the upper end of the clamping plate, the positioning screw is threadedly installed on the top surface of the positioning block and a knob is installed on the upper end of the positioning screw;

[0011] The actuator includes a hydraulic cylinder fixedly installed at the center position of the top plate and a lifting plate driven by the hydraulic cylinder. The lower end of the hydraulic rod of the hydraulic cylinder passes through the top plate and is connected to the top of the lifting plate. A pressure plate is connected to the bottom of the lifting plate through a bracket. A bending head corresponding to the bending groove is provided at the bottom of the pressure plate.

[0012] Preferably, sliding blocks are provided at both ends of the clamping plate, and sliding grooves are provided on both side walls of the positioning groove, and the sliding blocks and the sliding grooves are slidably matched.

[0013] Preferably, a bearing seat is embedded in the top center of the clamping plate, and the lower end of the positioning screw is inserted and fixed to the inner ring of the bearing of the bearing seat.

[0014] Preferably, two sets of connecting rods are symmetrically arranged on the other side wall of the positioning block, the connecting rods are slidably inserted in the baffle plate and the ends of the connecting rods pass through the baffle plate to connect the limiting block, and a compression spring is sleeved on the connecting rod between the limiting block and the baffle plate.

[0015] Preferably, it further comprises a heating mechanism arranged in the bending head, wherein the heating mechanism comprises an insulating rod and an electric heating wire, and the electric heating wire is wound around the insulating rod.

[0016] Preferably, a cavity is opened inside the bending head, the insulating rod is arranged inside the cavity, an electric control box for controlling the operation of the heating mechanism is installed on the top of the pressing plate, and a control circuit board and a battery are installed inside the electric control box.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model arranges a positioning mechanism including a baffle and a positioning block on a base plate, a positioning groove is provided on the positioning block, a clamping plate with a positioning screw is installed in the positioning groove, and a connecting rod on one side of the positioning block is slidably inserted in the baffle, and a compression spring is sleeved on the connecting rod. The device has a simple structure and is easy to use. By arranging the positioning mechanism, it can play a good positioning function when the FPC is bent, avoid displacement during the FPC processing, and improve the accuracy of the FPC bending processing. On the other hand, the sliding fixing of the FPC can shrink the two ends as the bending is carried out, and the FPC will not be damaged during the bending process, thereby avoiding the occurrence of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the processing table of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the positioning block of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the heating mechanism of the utility model.

[0023] In the figure: 1. base plate; 2. pillar; 3. top plate; 4. processing table; 5. bending groove; 6. hydraulic cylinder; 7. lifting plate; 8. pressure plate; 9. bending head; 10. electric control box; 11. cavity; 12. insulating rod; 13. electric heating wire; 14. baffle; 15. positioning block; 16. positioning groove; 17. clamping plate; 18. slider; 19. slide groove; 20. positioning screw; 21. bearing seat; 22. knob; 23. connecting rod; 24. limit block; 25. compression spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3 , the utility model provides a technical solution:

[0026] An FPC bending and forming device comprises a main structure, wherein the main structure comprises a substrate 1, a support 2 welded on the substrate 1, and a top plate 3 welded on the upper end of the support 2, a processing table 4 for FPC bending operation is arranged on the substrate 1, and a bending groove 5 is opened on the processing table 4;

[0027] It also includes a positioning mechanism disposed on the substrate 1 for positioning the FPC;

[0028] The positioning mechanism includes baffles 14 symmetrically arranged on both sides of the processing table 4 and a positioning block 15 on one side of the baffle 14. A positioning groove 16 for positioning the side edge of the FPC is opened on one side of the positioning block 15. A clamping plate 17 is slidably installed in the positioning groove 16. A positioning screw 20 is rotatably installed on the upper end of the clamping plate 17. The positioning screw 20 is threadedly installed on the top surface of the positioning block 15 and a knob 22 is installed on the upper end of the positioning screw 20.

[0029] When in use, the two ends of the FPC are placed in the positioning grooves 16 of the two sets of positioning blocks 15 respectively, and the clamping plate 17 is pressed down by rotating the knob 22 to position the FPC, thereby avoiding displacement during the FPC processing and improving the accuracy of the FPC bending processing.

[0030] See also Figure 3 :

[0031] Furthermore, sliders 18 are provided at both ends of the clamping plate 17, and slide grooves 19 are provided on both side walls of the positioning groove 16, and the sliders 18 and the slide grooves 19 are slidably matched. A bearing seat 21 is embedded in the center of the top of the clamping plate 17, and the lower end of the positioning screw 20 is inserted and fixed to the inner ring of the bearing of the bearing seat 21.

[0032] By arranging a slider 18 on the clamping plate 17, arranging sliding grooves 19 on both walls of the positioning groove 16, and arranging a positioning screw 20 rotatably mounted on the clamping plate 17 through a bearing seat 21, it can play a good positioning and guiding role when the clamping plate 17 moves up and down.

[0033] See also Figure 2-3 :

[0034] Furthermore, two sets of connecting rods 23 are symmetrically arranged on the other side wall of the positioning block 15. The connecting rods 23 are slidably inserted into the baffle 14 and the ends of the connecting rods 23 pass through the baffle 14 to connect the limiting block 24. A compression spring 25 is sleeved on the connecting rod 23 between the limiting block 24 and the baffle 14.

[0035] By setting a connecting rod 23 that is slidably inserted into the baffle 14 on the side wall of the positioning block 15, a limit block 24 is set on the connecting rod 23 and a compression spring 25 is sleeved. When the FPC is bent, the bent part moves downward, causing the two ends of the FPC to shrink inward. At this time, the connecting rod 23 slides on the baffle 14, so that the FPC can be dynamically positioned and fixed to avoid damage to the FPC.

[0036] See also Figure 1 :

[0037] It also includes an actuator for bending arranged on the top plate 3;

[0038] The actuator includes a hydraulic cylinder 6 fixedly installed at the center position of the top plate 3 and a lifting plate 7 driven by the hydraulic cylinder 6. The lower end of the hydraulic rod of the hydraulic cylinder 6 passes through the top plate 3 and is connected to the top of the lifting plate 7. A pressing plate 8 is connected to the bottom of the lifting plate 7 through a bracket. A bending head 9 corresponding to the bending groove 5 is provided at the bottom of the pressing plate 8.

[0039] By arranging an actuator including a hydraulic cylinder 6 and a lifting plate 7 on the top plate 3, a pressing plate 8 is arranged below the lifting plate 7, and a bending head 9 corresponding to the bending groove 5 is arranged at the bottom of the pressing plate 8. In actual use, after the FPC is positioned, the hydraulic cylinder 6 is started, and the hydraulic rod drives the lifting plate 7 and the pressing plate 8 to descend until the bending head 9 presses the FPC into the bending groove 5 to form a bend.

[0040] See also Figure 1 and Figure 4 :

[0041] Furthermore, it also includes a heating mechanism arranged in the bending head 9, the heating mechanism includes an insulating rod 12 and an electric heating wire 13, and the electric heating wire 13 is wound around the insulating rod 12. A cavity 11 is opened inside the bending head 9, and the insulating rod 12 is arranged inside the cavity 11. An electric control box 10 for controlling the operation of the heating mechanism is installed on the top of the pressing plate 8, and a control circuit board and a battery are installed inside the electric control box 10.

[0042] A heating mechanism including an electric heating wire 13 and an insulating rod 12 is arranged in the cavity 11 in the bending head 9. The electric heating wire 13 is powered and started by the electric control box 10 on the pressing plate 8. When the FPC is bent, the heating mechanism works to heat the bending head 9. When the bending head 9 presses the FPC into the bending groove 5, it contacts the FPC and heats the FPC, thereby reducing the stress during the bending process and preventing damage to the FPC.

[0043] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An FPC bending and forming device, characterized in that: The invention comprises a main structure, wherein the main structure comprises a base plate (1), a support (2) welded to the base plate (1), and a top plate (3) welded to the upper end of the support (2); a processing table (4) for FPC bending operation is arranged on the base plate (1), and a bending groove (5) is provided on the processing table (4); It also includes a positioning mechanism disposed on the substrate (1) for positioning the FPC; It also includes an actuator for bending and is arranged on the top plate (3); The positioning mechanism comprises baffles (14) symmetrically arranged on both sides of the processing table (4) and a positioning block (15) on one side of the baffle (14); a positioning groove (16) for positioning the side edge of the FPC is provided on one side of the positioning block (15); a clamping plate (17) is slidably installed in the positioning groove (16); a positioning screw (20) is rotatably installed on the upper end of the clamping plate (17); the positioning screw (20) is threadedly installed on the top surface of the positioning block (15) and a knob (22) is installed on the upper end of the positioning screw (20); The actuator comprises a hydraulic cylinder (6) fixedly mounted at the center of the top plate (3) and a lifting plate (7) driven by the hydraulic cylinder (6); the lower end of the hydraulic rod of the hydraulic cylinder (6) passes through the top plate (3) and is connected to the top of the lifting plate (7); a pressing plate (8) is connected below the lifting plate (7) via a bracket; a bending head (9) corresponding to the bending groove (5) is provided at the bottom of the pressing plate (8).

2. The FPC bending and forming device according to claim 1, characterized in that: Slide blocks (18) are provided at both ends of the clamping plate (17), and slide blocks (19) are provided on both side walls of the positioning groove (16), and the slide blocks (18) and the slide blocks (19) are slidably matched.

3. The FPC bending and forming device according to claim 2, characterized in that: A bearing seat (21) is embedded in the center of the top of the clamping plate (17), and the lower end of the positioning screw (20) is plugged and fixed to the inner ring of the bearing of the bearing seat (21).

4. The FPC bending and forming device according to claim 1, characterized in that: Two groups of connecting rods (23) are symmetrically arranged on the other side wall of the positioning block (15); the connecting rods (23) are slidably inserted into the baffle plate (14), and the ends of the connecting rods (23) pass through the baffle plate (14) and are connected to the limiting block (24); and a compression spring (25) is sleeved on the connecting rod (23) and is located between the limiting block (24) and the baffle plate (14).

5. The FPC bending and forming device according to claim 1, characterized in that: It also includes a heating mechanism arranged in the bending head (9), the heating mechanism including an insulating rod (12) and an electric heating wire (13), and the electric heating wire (13) is wound around the insulating rod (12).

6. The FPC bending and forming device according to claim 5, characterized in that: A cavity (11) is provided inside the bending head (9), the insulating rod (12) is arranged inside the cavity (11), an electric control box (10) for controlling the operation of the heating mechanism is installed on the top of the pressing plate (8), and a control circuit board and a storage battery are installed inside the electric control box (10).

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