FPC bending fixture

Abstract

This invention discloses an FPC bending fixture, including a chassis, a supporting mechanism, and a bending mechanism. The supporting mechanism is fixedly mounted above the chassis, and the bending mechanism is positioned near one end of the supporting mechanism. The bending mechanism includes a limiting device, a bending head, and a driving device. The limiting device is located beside one end of the supporting mechanism, and the driving device includes a first driving device and a second driving device. Under the action of the first driving device, the limiting device moves closer to or further away from the top of the supporting mechanism, and under the action of the second driving device, the bending head moves closer to or further away from the limiting device. The bending operation is achieved through the combined action of the limiting block of the limiting device and the bending head. Throughout the bending process, the driving device is controlled by a program to automatically bend the limiting device and the bending head, improving stability, increasing work efficiency, and saving manpower.

Description

Technical Field

[0001] The invention relates to the field of bending equipment, and in particular to an FPC bending jig for bending an FPC. Background Art

[0002] FPC (Flexible Printed Circuit), also known as flexible printed circuit board, is widely used in electronic products such as mobile phones, cameras, and laptops. In the assembly process of electronic products, the FPC needs to be bent before assembling it, and then other assembly operations can be performed. At present, the staff manually bends the FPC first and then assembles it, but manual bending has problems such as unstable bending performance and low work efficiency.

[0003] Therefore, there is an urgent need for an FPC bending fixture that is easy to operate and has stable bending performance to overcome the above defects. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention provides an FPC bending jig which is easy to operate and realizes automatic bending.

[0005] The technical solution adopted by the present invention to solve its technical problems is: the present invention provides an FPC bending jig, including a chassis, a bearing mechanism, and a bending mechanism. The bearing mechanism is fixedly arranged above the chassis, and the bending mechanism is arranged close to one end of the bearing mechanism. The bending mechanism includes a limiting device, a bending head and a driving device. The limiting device is located beside one end of the bearing mechanism. The driving device includes a first driving device and a second driving device. The limiting device approaches or moves away from the top of the bearing mechanism under the action of the first driving device, and the bending head approaches or moves away from the limiting device under the action of the second driving device.

[0006] As a further improvement of the present invention, the supporting mechanism includes a bracket and a supporting plate, the supporting plate is fixed to the upper surface of the chassis through the bracket, the upper surface of the supporting plate is provided with a receiving groove for accommodating the FPC, one end of the receiving groove is connected to the interface of the vacuum generator, and one or more vacuum adsorption holes are provided at the bottom of the receiving groove.

[0007] As a further improvement of the present invention, one or more positioning reference holes are also provided at the bottom of the receiving groove.

[0008] As a further improvement of the present invention, it also includes a vacuum detection gauge, which is arranged on the upper surface of the chassis.

[0009] As a further improvement of the present invention, it includes two sets of bending mechanisms, which are both arranged at one end of the supporting mechanism, and a through avoidance hole is opened at one end of the supporting plate. The bending head of one set of bending mechanisms passes through the avoidance hole to approach or move away from the corresponding limit device.

[0010] As a further improvement of the present invention, the limiting device includes a limiting block and a connecting portion, one end of the connecting portion is connected to the output end of the first driving device, and the other end of the connecting portion carries the limiting block.

[0011] As a further improvement of the present invention, the limiting surface of the limiting block is wedge-shaped, and the bending surface of the bending head is an arc surface, corresponding to the limiting surface; when the bending work is performed, the FPC to be bent is clamped between the limiting surface and the bending surface, and the bending surface squeezes the FPC to be bent along the limiting surface.

[0012] As a further improvement of the present invention, the chassis includes a box body and a cover body, the electronic components are accommodated in the box body, the cover body covers the box body, the supporting plate is fixed to the upper surface of the cover body through a bracket, and a handle is installed on one side wall of the box body.

[0013] As a further improvement of the present invention, it also includes a power switch, a momentary switch, and a counter, and the power switch, the momentary switch, and the counter are respectively arranged on the side walls of the box.

[0014] As a further improvement of the present invention, the driving device is a cylinder, and the FPC bending fixture further includes a pressure regulating valve, and the pressure regulating valve is used to control the pressure of the cylinder.

[0015] The beneficial effects of the present invention are as follows: the FPC bending jig provided in the embodiment of the present invention is provided with a bearing mechanism and a bending mechanism, wherein the bending mechanism includes a limiting device, a bending head and a driving device, the limiting device includes a limiting block, the FPC to be bent is carried by the bearing mechanism, the driving device drives the limiting device and the bending head to approach the FPC to be bent respectively, and the bending operation is realized under the joint action of the limiting block of the limiting device and the bending head. During the entire bending process, the program controls the driving device to drive the limiting device and the bending head to perform an automated bending operation on the FPC to be bent, thereby improving stability while improving work efficiency and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of an FPC bending jig shown in an embodiment of the present invention when placing an FPC.

[0018] Figure 2It is a structural schematic diagram of an FPC bending jig shown in an embodiment of the present invention when no FPC is placed.

[0019] Figure 3 It is a schematic diagram of the bending state of performing the first bending on the FPC to be bent by using the FPC bending fixture shown in the embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the bending state of performing a second bending on the FPC to be bent using the FPC bending fixture shown in the embodiment of the present invention. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] Figure 1 is a schematic diagram of the structure of an FPC bending jig when placing an FPC shown in an embodiment of the present invention, Figure 2 FIG. 1 is a schematic diagram of the structure of the FPC bending jig shown in an embodiment of the present invention when the FPC is not placed. Figure 1 and Figure 2 As shown, the FPC bending fixture 100 of the present invention is suitable for bending an FPC 200. Figure 1 As shown, it is a thin strip-shaped thin sheet structure, but it is not limited to this, and it can also be other shapes, such as a square thin sheet structure. The FPC bending jig 100 provided by the present invention includes a chassis 11, a supporting mechanism 12, and a bending mechanism 13. The supporting mechanism 12 is fixedly arranged above the chassis 11, and the bending mechanism 13 is arranged near one end of the supporting mechanism 12. The bending mechanism 13 includes a limiting device 131, a bending head 132 and a driving device. The limiting device 131 is located beside one end of the supporting mechanism. The driving device includes a first driving device 1331 and a second driving device 1332. The limiting device 131 is moved closer to or away from the top of the supporting mechanism 12 under the action of the first driving device 1331, and the bending head 132 is moved closer to or away from the limiting device 131 under the action of the second driving device 1332.

[0023] Specifically, the chassis 11 includes a box body 111 and a cover body 112. The box body 111 forms a storage space through the bottom surface and the side walls. The storage space accommodates electronic components such as a PCB board storing program codes for controlling the operation of the driving device. The cover body 112 covers the box body 111, thereby forming the storage space into a closed space.

[0024] Specifically, the bearing mechanism 12 includes a bracket 121 and a bearing plate 122. In this embodiment, the bracket 121 is four columns fixed on the upper surface of the cover 121, and the bearing plate 122 is a roughly rectangular plate-shaped structure. The four columns support the four corners of the bearing plate 122 respectively. The columns can fix the bearing plate 122 on the surface of the cover 121 by welding, riveting, threaded fastening, etc. It can be understood that in other embodiments, the bearing plate 122 can be supported on the upper side of the cover 121 by other bracket structures. The upper surface of the bearing plate 122 is provided with a receiving groove 1221 for receiving the FPC. The specific shape of the receiving groove 1221 can be set accordingly according to the shape of the FPC to be bent. For example, in this embodiment, the FPC 200 is a thin and long strip-shaped thin sheet strip structure. Correspondingly, the receiving groove 1221 is also a thin and long strip groove, so that the FPC 200 is received in the groove.

[0025] One end of the receiving groove 1221 is connected to the interface 8 of the vacuum generator, and the vacuum generator (not shown) is connected through the interface 8. During operation, a negative pressure state is formed in the receiving groove 1221 through the vacuum generator. In addition, a plurality of vacuum adsorption holes 7 are provided at the bottom of the receiving groove 1221. The vacuum adsorption holes 7 provided at the bottom of the groove can adsorb and limit the FPC 200 to be bent in the receiving groove 1221, thereby playing a fixing role.

[0026] In order to monitor the vacuum state in the receiving groove 1221 in real time, the FPC bending fixture 100 of this embodiment is further provided with a vacuum detection gauge 5, which is arranged on the upper surface of the cover body 121, facing the operator, for easy observation by the operator.

[0027] In addition, in the present embodiment, a positioning reference hole 9 is further provided at the position near the end of the bottom of the receiving groove 1221. Preferably, the number of the positioning reference holes 9 is specifically two, but it is not limited thereto and can be increased or decreased according to actual needs. The positioning reference hole 9 can play a foolproof role. Specifically, the positioning reference hole 9 is a vacuum hole. For example, when the FPC to be bent is placed in the receiving groove 1221, if the position of the FPC to be bent is accurately placed, the FPC to be bent can cover the positioning reference hole 9, so that the FPC bending jig can be started normally; and if the position of the FPC to be bent is not accurately placed, the FPC to be bent at least cannot completely cover the positioning reference hole 9. At this time, the positioning reference hole 9 will leak, which is manifested as the vacuum value on the vacuum detection table 5 will decrease. If the set value is not reached, the FPC bending jig 100 cannot be started.

[0028] The limiting device 131 includes a limiting block 1311 and a connecting portion 1312, one end of the connecting portion 1312 is connected to the output end of the first driving device 1331, and the other end of the connecting portion 1312 carries the limiting block 1311. The limiting block 1311 can be made of non-rigid materials such as rubber and silicone. The use of such non-rigid materials has a certain protective effect on the FPC200 to be bent. The surface (limiting surface) of the limiting block 1311 in contact with the FPC200 to be bent is wedge-shaped, and the surface (bending surface) of the bending head 132 in contact with the FPC200 to be bent is an arc surface, corresponding to the limiting surface. Among them, the bending head 132 can be made of rigid materials such as aluminum alloy. The first driving device 1331 and the second driving device 1332 can be, for example, a cylinder. In order to generate a larger bending power, a hydraulic cylinder can also be used. Of course, this is not limited to this, and other power devices can also be used according to actual needs. When the bending work is performed, the connecting portion 1312, under the action of the first driving device 1331, drives the limit block 1311 to move (for example, rotate) to one side of the FPC200 to be bent and presses the FPC200 to be bent. The bending head 132 is located on the other side of the FPC200 to be bent. During the bending process, the FPC200 to be bent is clamped between the limit surface and the bending surface. Under the driving action of the second driving device 1332, the bending head 132 drives the bending surface to squeeze the FPC200 to be bent obliquely upward along the limit surface of the limit block 1311, thereby achieving the bending effect of the FPC200 to be bent. In this embodiment, the limit block 1311 is rotated to one side of the FPC200 to be bent under the action of the power device. Of course, in other embodiments, other movement methods can also be used.

[0029] In the FPC bending jig 100 of this embodiment, there are two sets of bending mechanisms 13, so that two bends can be achieved for the FPC 200 to be bent. Each set of bending mechanisms 13 includes a limit device 131, a bending head 132 and a driving device, and the driving device includes a first driving device 1331 and a second driving device 1332. For the sake of clarity and convenience of understanding, as shown in FIG. Figure 2As shown, in the drawings of the embodiment of the present invention, "-1" and "-2" are added after the reference numerals of the same components in each set of bending mechanisms 13 to distinguish them. For example, the limiting device of one set of bending mechanisms is marked as 131-1, and the bending head in the set is marked as 132-1. Correspondingly, the limiting device of the bending mechanism in the other set is marked as 131-2, and the bending head in the set is marked as 132-2. It should be understood that the markings are only for the convenience of description and understanding, and should not constitute a limitation of the present invention. It can be understood that although the FPC bending jig 100 provided in the embodiment of the present invention has two sets of bending mechanisms 13, in other embodiments, the staff can increase or decrease the number of sets of bending mechanisms 13 according to the needs of the actual FPC bending work. The FPC bending jig 100 containing two sets of bending mechanisms 13 will be described in detail below.

[0030] In this embodiment, the two sets of bending mechanisms 13 are both arranged at one end of the carrying mechanism 12. Specifically, the two limit devices 131-1 and 131-2 in the two sets of bending mechanisms 13 are respectively located on both sides of the carrying mechanism 12. When the operation is started, the first driving devices 1331-1 and 1331-2 corresponding to the two limit devices 131-1 and 131-2 respectively drive the corresponding limit devices 131-1 and 131-2, thereby driving the respective limit blocks 1311-1 and 1311-2 to rotate toward the inner side (i.e., toward the carrying mechanism) (e.g., Figure 3 As shown), at this time, the two limit blocks 1311-1 and 1311-2 are located on the same side of the FPC 200 to be bent and are respectively pressed on different parts of the FPC 200 to be bent.

[0031] In this embodiment, a through avoidance hole 1210 is provided at the end of the carrying plate 121 of the carrying mechanism 12, and a bending head such as 132-2 in one set of bending mechanisms 13 passes through the avoidance hole 1210 to approach or move away from a corresponding limiting device such as 131-2. Figure 4As shown, when one set of the bending mechanisms 13 completes the bending work and moves away from the bearing mechanism, the bending head 132 (e.g., 132-2) of the other set of the bending mechanisms 13, under the driving action of its corresponding second driving device 1332 (e.g., 1332-2), passes through the avoidance hole 1210, and squeezes the FPC 200 to be bent obliquely upward along the corresponding limiting surface. After the bending work is completed, the bending head 132-2 passes through the avoidance hole and moves away from the corresponding limiting surface. In this embodiment, by providing a through avoidance hole 1210 on the bearing plate 121, the bending head of one set of the bending mechanisms passes through the avoidance hole to achieve the bending operation, and the spatial position is fully utilized, so that the overall structure of the fixture is more compact and small. Of course, it can be understood that the bearing plate may not be provided with an avoidance hole. For example, the length of the bearing plate may be appropriately reduced, and the bending head of one set of the driving mechanisms 130 may be arranged close to the end of the bearing plate.

[0032] In this embodiment, a handle 1 is provided on the side wall of the box 111 to facilitate moving the FPC bending jig. A counter 2 is provided on one side wall of the box 111 to record the number of products that have been bent, so as to facilitate counting of production. A power switch 3 and a momentary switch 4 electrically connected to the drive device are also provided on one side wall of the box 111.

[0033] In this embodiment, the driving device is specifically a cylinder. Furthermore, the FPC bending fixture also includes a pressure regulating valve 6, which is arranged on the upper surface of the cover body 121 and is used to adjust the pressure of the cylinder, thereby controlling the moving speed and bending power of the bending head 132 and the limiting device.

[0034] For ease of understanding, the working process of the FPC bending fixture of the present invention is described below: S1, turn on the power switch, and connect the vacuum air pipe and the cylinder air pipe; S2, manually place the FPC to be bent into the receiving groove, and then turn on the inching switch, and then the first driving device will drive their respective limit devices to move toward the bearing mechanism. At this time, the two limit blocks are located on the same side of the FPC200 to be bent and are respectively pressed on different parts of the FPC200 to be bent; S3, perform the first bending work, and the bending head in the bending mechanism that performs the first bending work performs the first bending on the FPC to be bent under the action of its corresponding second driving device. After about 1s, the second driving device drives the The corresponding bending head moves away from the corresponding limiting device and returns to the origin; S4, the first driving device in the bending mechanism that performs the first bending work drives the corresponding limiting device away from the carrying mechanism and returns to the origin; S5, performs the second bending work, and the bending head in the bending mechanism that performs the second bending work performs the second bending work on the FPC to be bent under the action of its corresponding second driving device. Similarly, after about 1s, the second driving device drives the corresponding bending head back to the origin, S6, the first driving device in the bending mechanism that performs the second bending drives the corresponding limiting device away from the carrying mechanism and returns to the origin, S7, takes out the bent FPC, and the bending work is completed.

[0035] The FPC bending jig of the present invention is provided with a bearing mechanism and a bending mechanism, wherein the bending mechanism includes a limiting device, a bending head and a driving device. The FPC to be bent is carried by the bearing mechanism, and the driving device drives the limiting device and the bending head to approach the FPC to be bent respectively, and the bending operation is realized under the joint action of the limiting block of the limiting device and the bending head. During the entire bending process, the program controls the driving device to drive the limiting device and the bending head to perform an automated bending operation on the FPC to be bent, thereby improving stability while improving work efficiency and saving manpower.

[0036] Many specific details are described in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited to the specific implementation disclosed above. At the same time, any person familiar with the art can make many possible changes and modifications to the technical solution of the present invention using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. An FPC bending jig, characterized in that: It comprises a chassis, a bearing mechanism and a bending mechanism, wherein the bearing mechanism is fixedly arranged above the chassis, and the bending mechanism has two sets, both of which are arranged at one end of the bearing mechanism, so as to realize two bends on the FPC to be bent; each set of the bending mechanism comprises a limiting device, a bending head and a driving device located beside one end of the bearing mechanism, wherein the driving device comprises a first driving device and a second driving device, and the limiting device comprises a limiting block and a connecting part, wherein one end of the connecting part is connected to the output end of the first driving device, and the other end of the connecting part carries the limiting block, and the limiting device approaches or moves away from the top of the bearing mechanism under the action of the first driving device, and the bending head approaches or moves away from the limiting device under the action of the second driving device; in addition, the limiting surface of the limiting block is wedge-shaped, and the bending surface of the bending head is an arc surface, corresponding to the limiting surface; when performing the bending work, the FPC to be bent is clamped between the limiting surface and the bending surface, and the bending surface squeezes the FPC to be bent along the limiting surface; The two limit devices in the two sets of the bending mechanisms are respectively located on both sides of the carrying mechanism. When the operation is started, the first driving devices corresponding to the two limit devices respectively drive the corresponding limit devices, thereby driving the respective limit blocks to rotate toward the carrying mechanism respectively. At this time, the two limit blocks are located on the same side of the FPC to be bent and are respectively pressed on different to-be-bent parts of the FPC to be bent; The bearing mechanism includes a bracket and a bearing plate, the bearing plate is fixed to the upper surface of the chassis through the bracket, the upper surface of the bearing plate is provided with a receiving groove for receiving the FPC, one end of the receiving groove is connected to the interface of the vacuum generator, the bottom of the receiving groove is provided with one or more vacuum adsorption holes, and the bottom of the receiving groove is also provided with one or more positioning reference holes; A through avoidance hole is provided at the end of the bearing plate of the bearing mechanism. When one set of the bending mechanisms completes the bending work and moves away from the bearing mechanism, the bending head of the other set of the bending mechanisms passes through the avoidance hole under the driving action of the corresponding second driving device, and presses the FPC to be bent upward along the corresponding limiting surface. After the bending work is completed, the bending head passes through the avoidance hole and moves away from the corresponding limiting surface; The FPC bending jig also includes a vacuum detection gauge, which is arranged on the upper surface of the chassis.

2. The FPC bending jig according to claim 1, characterized in that: The chassis comprises a box body and a cover body, wherein the electronic components are accommodated in the box body, the cover body covers the box body, the carrying plate is fixed to the upper surface of the cover body through a bracket, and a handle is installed on one side wall of the box body.

3. The FPC bending jig according to claim 2, characterized in that: It also includes a power switch, a momentary switch, and a counter. The power switch, the momentary switch, and the counter are respectively arranged on the side walls of the box.

4. The FPC bending jig according to claim 1, characterized in that: The driving device is a cylinder, and the FPC bending fixture further includes a pressure regulating valve, which is used to control the pressure of the cylinder.

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