A flexible FPC connector bending device, a bending mechanism thereof and a bending machine thereof

Abstract

The application discloses a flexible FPC connector bending device, a bending mechanism thereof and a bending machine thereof, and belongs to the technical field of connector bending devices. The bending device comprises an FPC support table, a bending mechanism and a pressing needle and shaping mechanism. The FPC support table is horizontally arranged. The bending mechanism is arranged on one side of the FPC support table. The bending mechanism comprises a supporting rotating assembly, a bearing assembly and a clamping assembly. The supporting rotating assembly is connected to the FPC support table. The bearing assembly is connected to the output end of the supporting rotating assembly and is used for bearing and supporting the connector. The clamping assembly is arranged on the output end of the supporting rotating assembly and clamps and fixes the connector. The pressing needle and shaping mechanism is arranged on the other side of the FPC support table and is used for completing the shaping of the surface of the belt before bending and serving as a bending rotating central shaft. The application realizes the shaping of the surface of the belt before bending. Meanwhile, the pressing needle presses the bending line on the belt in a linear contact mode before bending, effectively prevents the local belt from being lifted up during the bending process, serves as the bending rotating central shaft, provides a bending reference and effectively controls the bending curvature.

Description

Technical Field

[0001] The present invention relates to the field of flexible printed circuit board (FPC) manufacturing equipment, and in particular to a flexible FPC connector bending device, a bending mechanism and a bending machine thereof. Background Art

[0002] Flexible printed circuits, also known as "FPCs," are printed circuit boards made from a flexible insulating substrate. FPCs offer excellent electrical performance, meeting the demands of smaller and higher-density designs, while also helping to reduce assembly steps and enhance reliability. FPCs can be bent, rolled, and folded freely, enduring millions of dynamic bends without damaging the conductors. They can be arranged arbitrarily to meet spatial layout requirements and moved and expanded in three dimensions, integrating component assembly and wiring connections. They can also significantly reduce the size and weight of electronic products, meeting the needs of the trend toward higher density, miniaturization, and higher reliability.

[0003] The ends of flexible FPCs are equipped with connectors for connecting to other circuit components. During the actual manufacturing process, one process requirement is to bend the connector along its connection with the flexible FPC strip to facilitate subsequent plug-in assembly with circuit accessories. Due to the flexible nature of the flexible FPC strip, the angle and position of the bending process are difficult to precisely control. Specifically, because the connector itself is thicker than the FPC strip, the bending line and bending centerline must be located at a certain distance from the connection line between the connector and the FPC strip to reserve space for the connector after bending. Otherwise, the side of the connector will press against the FPC strip, preventing it from turning 180°. Because the bending line is at a certain distance from the side of the connector, the connector and the FPC strip, when flipped 180° from a horizontal position to the top of the FPC strip, are in a state of close contact or parallel spacing, and the strip has an arc-shaped structure at the bend.

[0004] Using existing bending technology, during the bending process, the internal stress of the FPC strip at the bend is first affected by the strip's own stress. The stress in the strip at the bend is transferred to the unbent strip, causing it to warp and other positional deviations, affecting bending accuracy. Secondly, because the bent strip is in a movable state and the strip's flexible nature, the bending arc cannot be precisely controlled during the bending process. If the bending arc is too large, the bend will be excessively loose, resulting in uneven surface flatness after the bend. If the bending arc is too small, the side of the connector will press against the strip below during bending, damaging the strip or even pulling it up. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned existing technologies and provide a flexible FPC connector bending device, a bending mechanism and a bending machine thereof, which use a pressure needle to achieve surface shaping of the belt before bending to ensure the flatness of the belt surface. At the same time, the pressure needle presses the bending line on the belt in a line contact manner before bending, effectively preventing local belt warping during the bending process and affecting the bending accuracy. The device can also serve as the bending rotation center axis, provide a bending reference, effectively control the bending curvature, and improve the bending position accuracy and bending height.

[0006] The technical solution adopted by the present invention is as follows: a flexible FPC connector bending device is arranged in a connector bending machine, comprising an FPC support, a bending mechanism and a pressure needle and shaping mechanism, wherein the FPC support is horizontally arranged, and a horizontal bearing plane extending along the X-axis direction is formed on it for bearing and fixing the flexible FPC, and the connector at the end of the flexible FPC0 is horizontally suspended on the outside of the FPC support; the bending mechanism is arranged on one side of the FPC support, and the bending mechanism includes a supporting rotation component, a bearing component and a clamping component; the supporting rotation component is connected to the FPC support and outputs rotational power in a vertical plane; the bearing component is connected to the output end of the supporting rotation component and extends to the horizontally suspended The lower part of the connector is used to support the connector; the clamping assembly is arranged on the output end of the supporting rotating assembly and clamps the connector; the supporting assembly and the clamping assembly drive the supported and fixed connector to rotate as a whole through the supporting rotating assembly to complete the flipping and bending of the connector; the pressing needle and the shaping mechanism are arranged on the other side of the FPC support, and the pressing needle and the shaping mechanism output linear power along the X-axis direction and the Y-axis direction to drive the second pressing needle to extend to the top of the flexible FPC, and move in a straight line along the X-axis direction along the surface of the flexible FPC to complete the shaping of the belt surface before bending, and move to the place where the connector is to be bent, press the flexible FPC when the connector is bent, and serve as the central axis of the bending rotation to control the bending arc.

[0007] Preferably, the FPC support includes a support seat, a step support seat, a limit reference block and a vacuum suction nozzle, wherein the support seat is horizontally arranged along the X-axis direction; the step support seat is arranged on one end wall of the support seat, and there is a height difference between the step support seat and the surface of the support seat; the support seat is provided with two rows of mounting grooves, the mounting grooves are sunken into the support seat and connected to the side of the support seat to form an open slot; the limit reference block includes at least two blocks, the limit reference blocks slide into the mounting slots from the open slots, and after adjusting the position in the mounting slots along the Y-axis direction, they are fixed in the mounting slots by bolts; a placement channel is formed between the limit reference blocks fixed in the two rows of mounting slots for placing the flexible FPC, and the flexible FPC is guided and positioned along the Y-axis direction during the placement process by the limit reference blocks; the vacuum suction nozzle includes at least two, and at least two vacuum suction nozzles are arranged in the placement channel at intervals along the X-axis direction, and the lower end of the vacuum suction nozzle passes through the support seat and is connected to the external vacuum generator, and the flexible FPC is fixed downward by vacuum negative pressure.

[0008] Preferably, the flexible FPC includes an FPC strip and a connector; wherein, the FPC strip is horizontally placed in the placement channel along the X-axis direction and is fixed by vacuum adsorption downward through a vacuum nozzle; the connector is arranged at the end of the FPC strip, and the connector extends horizontally outward through a step support seat and is suspended in the air.

[0009] Preferably, it also includes a clamping mechanism, which is arranged on the side of the FPC support and is used to clamp and fix the flexible FPC from above; the clamping mechanism includes a clamping cylinder, a clamping shaft, a support block, a clamping block, a positioning sleeve and a positioning column, wherein the clamping cylinder is arranged on the side of the FPC support and the output end is arranged upward; the clamping shaft is vertically connected to the output shaft of the clamping cylinder, and the clamping cylinder drives the clamping shaft to move up and down and rotate; the support block is horizontally connected to the top of the clamping shaft and extends horizontally above the FPC support; the clamping block is arranged at the bottom of the support block; the positioning sleeve is arranged on the FPC support; the positioning column is vertically arranged at the bottom of the support block; the clamping cylinder drives the support block to rotate so that when taking and placing the flexible FPC, it rotates to the outside of the FPC support and rotates to the top of the FPC support before the connector is bent, and the angular position of the pressing rotation is limited by the mutual insertion of the positioning sleeve and the positioning column, so that after the clamping block is located above the flexible FPC, the support block is driven to descend so as to clamp and fix the flexible FPC from above.

[0010] Preferably, the supporting rotating assembly includes a bending support, a bending cylinder, a rotating block and a rotating bracket, wherein the bending support is connected and fixed to one side of the FPC support and extends outward to form a vertical supporting surface spaced apart from the FPC support; the bending cylinder is arranged on the vertical supporting surface, and the output end is arranged toward the FPC support; the rotating block is connected to the output end of the bending cylinder and is driven by the bending cylinder to rotate in a vertical plane; the rotating bracket is an L-shaped structure, the vertical plate of the rotating bracket is connected to the side wall of one end of the rotating block, and the horizontal plate of the rotating bracket extends toward the FPC support along the Y-axis direction.

[0011] Preferably, the supporting assembly includes a connecting block and a connector support, wherein the connecting block is connected to the bottom of the horizontal plate of the rotating bracket and extends toward the connector along the X-axis direction; the connector support is arranged on the connecting block, and an embedded groove is provided on the connector support; in the initial state, the connector of the flexible FPC is placed in the embedded groove of the connector support and is supported by the connector support.

[0012] Preferably, the clamping assembly includes a clamping cylinder and a clamping block, wherein the clamping cylinder is arranged on the horizontal plate of the rotating bracket, and the output end is arranged toward the connector; the clamping block includes two blocks, the two clamping blocks are respectively connected to the output ends of the clamping cylinder, and extend to the front and rear sides of the connector along the X-axis direction respectively, and the clamping cylinder drives the two clamping blocks to clamp or release the connector.

[0013] Preferably, the bending mechanism further includes a first pressing needle; the first pressing needle is arranged on the rotating block and extends along the Y-axis direction toward the FPC support; the first pressing needle is coaxial with the rotation center axis of the rotating block.

[0014] Preferably, the pressing needle and shaping mechanism includes a shaping support, a first translation assembly, a second translation assembly and a second pressing needle, wherein the shaping support is vertically connected and fixed to the bottom of the other side of the FPC support and extends along the X-axis direction; the first translation assembly is arranged on the side wall of the shaping support and outputs power along the X-axis direction; the second translation assembly is connected to the output end of the first translation assembly and outputs power along the Y-axis direction; the second pressing needle is connected to the output end of the second translation assembly and extends to the top of the FPC support along the Y-axis direction; the second pressing needle is driven by the power output by the second translation assembly to extend into the top of the FPC support along the Y-axis direction so as to press the flexible FPC, or retract to the outside of the FPC support so as to take and place the flexible FPC on the FPC support; the second pressing needle is driven by the power output by the first translation assembly to move along the X-axis direction so as to perform shaping and flattening on the surface of the flexible FPC.

[0015] Preferably, a pressure needle interface is provided at the end of the second pressure needle. After the second pressure needle moves along the X-axis direction along the surface of the flexible FPC and completes the shaping, the pressure needle interface is engaged with the pressure needle interface opened at the end of the first pressure needle of the bending mechanism to form a complete cylinder, and the second pressure needle is positioned by the preset bending position of the first pressure needle.

[0016] A connector bending mechanism of a flexible FPC connector bending device is arranged on the side of an FPC support, on which a flexible FPC is placed, and includes a supporting rotation component, a bearing component and a clamping component, wherein the supporting rotation component is connected to the FPC support and outputs rotational power in a vertical plane; the bearing component is connected to the output end of the supporting rotation component and extends to the bottom of the horizontally suspended connector for supporting the connector; the clamping component is arranged on the output end of the supporting rotation component and clamps the connector; the bearing component and the clamping component are driven by the supporting rotation component to drive the supported and fixed connector to rotate as a whole, thereby completing the flipping and bending of the connector.

[0017] A bending machine comprising a flexible FPC connector bending device.

[0018] The beneficial effects of the present invention are:

[0019] In response to the defects and shortcomings of the existing technology, the present invention independently developed and designed a method that uses a pressing needle to achieve surface shaping of the belt before bending, thereby ensuring the flatness of the belt surface. At the same time, the pressing needle presses the bending line on the belt in a line contact manner before bending, effectively preventing local belt warping during the bending process and affecting the bending accuracy. It can also serve as the central axis of bending rotation, provide a bending reference, effectively control the bending curvature, and improve the bending position accuracy and bending height.

[0020] The present invention belongs to the core part of the flexible FPC connector bending machine, which mainly realizes the bearing of flexible FPC and automatic bending of connector; the present invention as a whole comprises an FPC support, a bending mechanism, a pressing pin and a shaping mechanism, the flexible FPC to be bent is placed on the FPC support, supported by the FPC support, and the connector to be flipped and bent is horizontally suspended outside the end of the FPC support; the bending mechanism arranged on one side of the FPC support extends to the bottom of the connector, and supports the connector, and after clamping and fixing the connector front and back, drives the connector to rotate 180 degrees as a whole to complete the flipping and bending; the pressing pin and the second pressing pin of the shaping mechanism arranged on the other side of the FPC support extend above the FPC strip along the Y-axis direction, and move linearly toward the bending line along the X-axis direction along the surface of the FPC strip, thereby realizing the surface straightening of the FPC strip near the bend before bending. shape, ensuring the flatness of the belt surface during bending, and serving as the rotation center axis during bending when moving to the bending line, the FPC belt body is pressed down by the second pressure needle in a line contact manner. When bending, the connector drives the FPC belt body to gradually wrap around the arc-shaped surface of the second pressure needle from the bottom to the top of the second pressure needle to complete the bending; here the second pressure needle simultaneously realizes three functions, namely, surface shaping of the belt body near the bending line before bending, pressing the FPC belt body near the bending line during bending, and providing a reference surface for the belt body to bend and wrap as the rotation center axis during bending to accurately control the bending curvature and bending height; in addition, a second pressure needle with a needle structure is used as a belt pressing component, and the cylindrical second pressure needle presses the FPC belt body in a line contact manner. Compared with the plane pressing method, it can more accurately control the bending accuracy, so that the belt body at the bend presents a complete arc-shaped structure. In addition, the bending mechanism of the present invention is also integrated with a first pressing pin, which is coaxially arranged with the rotation center axis of the bending mechanism, that is, during the process of the bending mechanism driving the connector to rotate, the first pressing pin maintains a relatively static state in the X-axis direction and the Y-axis direction. By debugging and installing the position of the first pressing pin, its position along the X-axis direction is advanced to the bending line of the flexible FPC. In actual working process, the ends of the first pressing pin and the second pressing pin can be set to a forked notch structure, that is, a pressing pin interface. After the second pressing pin is shaped against the surface of the FPC belt body, the first pressing pin can be used as a limiting structure, that is, when the pressing pin interface of the second pressing pin and the pressing pin interface of the first pressing pin are engaged with each other, it is the shaping end position of the second pressing pin, thereby realizing precise control of the shaping position of the second pressing pin; in addition, in different embodiments, according to different bending accuracy requirements of the product, the first pressing pin can also be used alone as the belt body line contact clamping structure and the bending rotation center axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view of the present invention.

[0022] Figure 2 This is one of the three-dimensional structural diagrams of the present invention.

[0023] Figure 3 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 4 This is the third schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 5 This is one of the three-dimensional structural diagrams of the FPC support, pressure needle and line aligning mechanism of the present invention.

[0026] Figure 6 This is the second schematic diagram of the three-dimensional structure of the FPC support, pressure needle and line aligning mechanism of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the FPC support of the present invention.

[0028] Figure 8 It is a schematic diagram of the component disassembly structure of the FPC support of the present invention.

[0029] Figure 9 for Figure 8 The enlarged structural diagram at point I is shown in the figure.

[0030] Figure 10 This is one of the three-dimensional structural diagrams of the bending mechanism and the flexible FPC of the present invention.

[0031] Figure 11 This is the second schematic diagram of the three-dimensional structure of the bending mechanism and the flexible FPC of the present invention.

[0032] Figure 12 This is the third schematic diagram of the three-dimensional structure of the bending mechanism and the flexible FPC of the present invention.

[0033] Figure 13 It is a schematic diagram of the three-dimensional structure of the bending mechanism of the present invention.

[0034] Figure 14 This is one of the three-dimensional structural diagrams of the needle pressing and shaping mechanism of the present invention.

[0035] Figure 15 This is the second schematic diagram of the three-dimensional structure of the needle pressing and shaping mechanism of the present invention.

[0036] Figure 16 This is a schematic diagram of the state of the shaping pin of the connector before bending according to Example 2 of the present invention.

[0037] Figure 17 This is a schematic diagram of the state of the shaping press pin of the connector before bending in Example 3 of the present invention.

[0038] In the picture:

[0039] 0. Flexible FPC; 01. FPC strip; 02. Connector;

[0040] 1. FPC support; 11. Support base; 12. Step support base; 13. Limit reference block; 14. Vacuum nozzle; A. Mounting slide;

[0041] 2. Clamping mechanism; 21. Clamping cylinder; 22. Clamping shaft; 23. Support block; 24. Clamping block; 25. Positioning sleeve; 26. Positioning column;

[0042] 3. Bending mechanism; 31. Bending support; 32. Bending cylinder; 33. Rotating block; 34. Rotating bracket;

[0043] 35. Connecting block; 36. Connector support;

[0044] 37. Clamping cylinder; 38. Clamping block;

[0045] 39. First press needle;

[0046] 4. Needle pressing and shaping mechanism;

[0047] 41. Shaping support; 42. First translation cylinder; 43. First translation slide; 44. Translation support plate;

[0048] 45. Second translation cylinder; 46. Second translation slide; 47. Second pressing needle;

[0049] B, press needle interface; h, height difference. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship and movement status of various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0052] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0053] like Figures 1 to 4 As shown, the present invention proposes a flexible FPC connector bending device, which is arranged in a connector bending machine, including an FPC support 1, a bending mechanism 3 and a pressure needle and shaping mechanism 4, wherein the FPC support 1 is horizontally arranged, and a horizontal bearing plane extending along the X-axis direction is formed on it, which is used to carry and fix the flexible FPC0, and the connector 02 at the end of the flexible FPC0 is horizontally suspended on the outside of the FPC support 1; the bending mechanism 3 is arranged on one side of the FPC support 1, and the bending mechanism 3 includes a supporting rotation component, a bearing component and a clamping component; the supporting rotation component is connected to the FPC support 1 and outputs rotational power in a vertical plane; the bearing component is connected to the output end of the supporting rotation component and extends to the bottom of the horizontally suspended connector 02 , used to carry and support the connector 02; the clamping assembly is arranged on the output end of the supporting rotating assembly and clamps and fixes the connector 02; the carrying assembly and the clamping assembly are driven by the supporting rotating assembly to drive the carried and fixed connector 02 to rotate as a whole, completing the flipping and bending of the connector 02; the pressing needle and shaping mechanism 4 are arranged on the other side of the FPC support 1, and the pressing needle and shaping mechanism 4 output linear power along the X-axis direction and the Y-axis direction, which is used to drive the second pressing needle to extend to the top of the flexible FPC0, and move in a straight line along the X-axis direction along the surface of the flexible FPC0 to complete the shaping of the belt surface before bending, and move to the connector 02 to be bent, press the flexible FPC0 when the connector 02 is bent, and serve as the central axis of bending rotation to control the bending curvature.

[0054] like Figures 5 to 9 As shown, as an embodiment of the present invention, the FPC support 1 of the present invention includes a support seat 11, a step support seat 12, a limit reference block 13 and a vacuum suction nozzle 14, wherein the support seat 11 is horizontally arranged along the X-axis direction; the step support seat 12 is arranged on one end wall of the support seat 11, and there is a height difference h between the step support seat 12 and the surface of the support seat 11; the support seat 11 is provided with two rows of mounting grooves A, the mounting grooves A are sunken into the support seat 11, and are connected to the side of the support seat 11 to form an open notch; the limit reference block 13 includes at least two blocks, and the limit reference block 13 is opened from the open The slot slides into the installation slot A, and after adjusting the position along the Y-axis direction in the installation slot A, it is fixed in the installation slot A by means of bolts; a placement channel is formed between the limit reference blocks 13 fixed in the two rows of installation slots A, which is used to place the flexible FPC0. During the placement process, the flexible FPC0 is guided and positioned along the Y-axis direction by the limit reference blocks 13; the vacuum suction nozzle 14 includes at least two, and at least two vacuum suction nozzles 14 are arranged in the placement channel at intervals along the X-axis direction. The lower end of the vacuum suction nozzle 14 passes through the support seat 11 and is connected to the external vacuum generator, and the flexible FPC0 is fixed downward by vacuum negative pressure.

[0055] like Figure 10 As shown, as an embodiment of the present invention, the flexible FPC0 of the present invention includes an FPC belt body 01 and a connector 02; wherein, the FPC belt body 01 is horizontally placed in the placement channel along the X-axis direction, and is fixed by vacuum adsorption downward through a vacuum nozzle 14; the connector 02 is arranged at the end of the FPC belt body 01, and the connector 02 extends horizontally outward through the step support seat 12 and is suspended in the air.

[0056] The present invention designs a method that uses a pressing needle to achieve belt surface shaping before bending, ensuring the flatness of the belt surface. At the same time, the pressing needle presses the bending line on the belt in a line contact manner before bending, effectively preventing local belt warping during the bending process from affecting the bending accuracy. It can also serve as the bending rotation center axis, provide a bending reference, effectively control the bending curvature, and improve the bending position accuracy and bending height. The present invention belongs to the core part of the flexible FPC connector bending machine, which mainly realizes the bearing of flexible FPC and automatic bending of connector; the present invention as a whole comprises an FPC support, a bending mechanism, a pressing pin and a shaping mechanism, the flexible FPC to be bent is placed on the FPC support, supported by the FPC support, and the connector to be flipped and bent is horizontally suspended outside the end of the FPC support; the bending mechanism arranged on one side of the FPC support extends to the bottom of the connector, and supports the connector, and after clamping and fixing the connector front and back, drives the connector to rotate 180 degrees as a whole to complete the flipping and bending; the pressing pin and the second pressing pin of the shaping mechanism arranged on the other side of the FPC support extend above the FPC strip along the Y-axis direction, and move linearly toward the bending line along the X-axis direction along the surface of the FPC strip, thereby realizing the surface straightening of the FPC strip near the bend before bending. shape, ensuring the flatness of the belt surface during bending, and serving as the rotation center axis during bending when moving to the bending line, the FPC belt body is pressed down by the second pressure needle in a line contact manner. When bending, the connector drives the FPC belt body to gradually wrap around the arc-shaped surface of the second pressure needle from the bottom to the top of the second pressure needle to complete the bending; here the second pressure needle simultaneously realizes three functions, namely, surface shaping of the belt body near the bending line before bending, pressing the FPC belt body near the bending line during bending, and providing a reference surface for the belt body to bend and wrap as the rotation center axis during bending to accurately control the bending curvature and bending height; in addition, a second pressure needle with a needle structure is used as a belt pressing component, and the cylindrical second pressure needle presses the FPC belt body in a line contact manner. Compared with the plane pressing method, it can more accurately control the bending accuracy, so that the belt body at the bend presents a complete arc-shaped structure. In addition, the bending mechanism of the present invention is also integrated with a first pressing pin, which is coaxially arranged with the rotation center axis of the bending mechanism, that is, during the process of the bending mechanism driving the connector to rotate, the first pressing pin maintains a relatively static state in the X-axis direction and the Y-axis direction. By debugging and installing the position of the first pressing pin, its position along the X-axis direction is advanced to the bending line of the flexible FPC. In actual working process, the ends of the first pressing pin and the second pressing pin can be set to a forked notch structure, that is, a pressing pin interface. After the second pressing pin is shaped against the surface of the FPC belt body, the first pressing pin can be used as a limiting structure, that is, when the pressing pin interface of the second pressing pin and the pressing pin interface of the first pressing pin are engaged with each other, it is the shaping end position of the second pressing pin, thereby realizing precise control of the shaping position of the second pressing pin; in addition, in different embodiments, according to different bending accuracy requirements of the product, the first pressing pin can also be used alone as the belt body line contact clamping structure and the bending rotation center axis. Example 2

[0057] like Figures 8 and 9 As shown, as an embodiment of the present invention, the present invention also includes a clamping mechanism 2, which is arranged on the side of the FPC support 1 and is used to clamp and fix the flexible FPC0 from above; the clamping mechanism 2 includes a clamping cylinder 21, a clamping shaft 22, a support block 23, a clamping block 24, a positioning sleeve 25 and a positioning column 26, wherein the clamping cylinder 21 is arranged on the side of the FPC support 1, and the output end is arranged upward; the clamping shaft 22 is vertically connected to the output shaft of the clamping cylinder 21, and the clamping cylinder 21 drives the clamping shaft 22 to move up and down and rotate; the support block 23 is horizontally connected to the top of the clamping shaft 22, and It extends horizontally to above the FPC support 1; the pressure block 24 is arranged at the bottom of the support block 23; the positioning sleeve 25 is arranged on the FPC support 1; the positioning column 26 is vertically arranged at the bottom of the support block 23; the clamping cylinder 21 drives the support block 23 to rotate, so that when taking and placing the flexible FPC0, it rotates to the outside of the FPC support 1, and rotates to above the FPC support 1 before the connector is bent, and the angular position of the pressure rotation is limited by the mutual insertion of the positioning sleeve 25 and the positioning column 26, so that the pressure block 24 is located above the flexible FPC0, and then the support block 23 is driven to descend, so as to clamp and fix the flexible FPC0 from above. Example 3

[0058] like Figures 10 to 13 As shown, as an embodiment of the present invention, the support and rotation assembly of the present invention includes a bending support 31, a bending cylinder 32, a rotating block 33 and a rotating bracket 34, wherein the bending support 31 is connected and fixed to one side of the FPC support 1, and extends outward to form a vertical support surface spaced apart from the FPC support 1; the bending cylinder 32 is arranged on the vertical support surface, and the output end is arranged toward the FPC support 1; the rotating block 33 is connected to the output end of the bending cylinder 32, and is driven by the bending cylinder 32 to rotate in a vertical plane; the rotating bracket 34 is an L-shaped structure, the vertical plate of the rotating bracket 34 is connected to the side wall of one end of the rotating block 33, and the horizontal plate of the rotating bracket 34 extends toward the FPC support 1 along the Y-axis direction.

[0059] The bearing assembly includes a connecting block 35 and a connector support 36, wherein the connecting block 35 is connected to the bottom of the horizontal plate of the rotating bracket 34 and extends toward the connector 02 along the X-axis direction; the connector support 36 is arranged on the connecting block 35, and an embedded groove is provided on the connector support 36; in the initial state, the connector 02 of the flexible FPC0 is placed in the embedded groove of the connector support 36 and is supported by the connector support 36.

[0060] The clamping assembly includes a clamping cylinder 37 and a clamping block 38, wherein the clamping cylinder 37 is arranged on the horizontal plate of the rotating bracket 34, and the output end is arranged toward the connector 02; the clamping block 38 includes two blocks, and the two clamping blocks 38 are respectively connected to the output ends of the clamping cylinder 37, and extend to the front and rear sides of the connector 02 along the X-axis direction respectively. The clamping cylinder 37 drives the two clamping blocks 38 to clamp or release the connector 02.

[0061] The bending mechanism also includes a first pressing pin 39; the first pressing pin 39 is arranged on the rotating block 33 and extends along the Y-axis direction toward the FPC support 1; the first pressing pin 39 is coaxial with the rotation center axis of the rotating block 33. In the actual design process, the first pressing pin 39 can be inserted into the rotating block 33 movably along the Y-axis direction. The first pressing pin 39 passes through the rotating block 33, the bending cylinder 32 and the bending support 31, and slides freely along the Y-axis direction inside the three. In addition, a driving cylinder can be set outside the bending support 31 to drive the first pressing pin 39 to move back and forth in a straight line along the Y-axis direction. This movable design of the first pressing pin 39 can avoid interference while ensuring that the first pressing pin 39 and the bending line overlap in the X-axis direction. That is, when the flexible FPC0 needs to be taken and placed, the first pressing pin 39 retracts outward to place the flexible FPC0 in the process space. After the flexible FPC0 is placed, the first pressing pin 39 is driven to extend above the flexible FPC0 to press the belt or guide positioning. Example 4

[0062] like Figures 14 and 15 As shown, as an embodiment of the present invention, the pressure needle and shaping mechanism of the present invention includes a shaping support 41, a first translation assembly, a second translation assembly and a second pressure needle 47, wherein the shaping support 41 is vertically connected and fixed to the bottom of the other side of the FPC support 1, and extends along the X-axis direction; the first translation assembly is arranged on the side wall of the shaping support 41, and outputs power along the X-axis direction; the second translation assembly is connected to the output end of the first translation assembly, and outputs power along the Y-axis direction; the second pressure needle 47 is connected to the output end of the second translation assembly, and extends to the top of the FPC support 1 along the Y-axis direction; the second pressure needle 47 is driven by the power output of the second translation assembly to extend into the top of the FPC support 1 along the Y-axis direction to press the flexible FPC0, or retract to the outside of the FPC support 1 to take and place the flexible FPC0 on the FPC support 1; the second pressure needle 47 is driven by the power output of the first translation assembly to move along the X-axis direction to perform shaping and flattening on the surface of the flexible FPC0. Example 5

[0063] like Figure 16As shown, as an embodiment of the present invention, a pressure needle interface B is provided at the end of the second pressure needle 47 of the present invention. After the second pressure needle 47 moves along the X-axis direction along the surface of the flexible FPC0 and the shaping is completed, the pressure needle interface B is interlocked with the pressure needle interface opened at the end of the first pressure needle of the bending mechanism 3 to form a complete cylinder, and the second pressure needle 47 is positioned by the preset bending position of the first pressure needle. Example 6

[0064] like Figure 16 As shown, as an embodiment of the present invention, the end of the FPC support 1 of the present invention is provided with a step support seat 12, and the height of the step support seat 12 is lower than the support seat 11, and there is a height difference between the two, that is, the step height h; in this embodiment, the first pressure needle 39 of the present invention can be installed and debugged in advance and set on the step support seat 12, that is, located within the step height h, and the top of the first pressure needle 39 set in advance is flush with the height of the support seat 11 or slightly higher than the height of the support seat 11; when the flexible FPC is placed on the support seat 11, the bottom surface of the flexible FPC is in line contact with the top of the first pressure needle 39; at the same time, the second pressure needle 47 moves along the X-axis direction along the surface of the flexible FPC to perform surface shaping until it moves above the first pressure needle 39. The second pressure needle 47 and the first pressure needle 39 respectively press the FPC belt body 01 up and down in a line contact manner before bending. When bending, the FPC belt body 01 is bent and wrapped around the arc surface of the second pressure needle 47 until the connector 02 is flipped 180°.

[0065] The embodiments of the present invention are merely to introduce specific implementation methods and are not intended to limit the scope of protection. Persons skilled in the art may make certain modifications inspired by these embodiments. Therefore, any equivalent changes or modifications made in accordance with the scope of the present invention are within the scope of the patent claims of the present invention.

Claims

1. A flexible FPC connector bending device, arranged in a connector bending machine, characterized in that: It includes an FPC support (1), a bending mechanism (3) and a pressing needle and shaping mechanism (4), wherein: The FPC support (1) is arranged horizontally, and a horizontal bearing plane extending along the X-axis direction is formed on it for bearing and fixing the flexible FPC (0), and the connector (02) at the end of the flexible FPC (0) is suspended horizontally on the outside of the FPC support (1); The bending mechanism (3) is arranged on one side of the FPC support (1), and the bending mechanism (3) includes a supporting rotation component, a bearing component and a clamping component; the supporting rotation component is connected to the FPC support (1) and outputs rotational power in a vertical plane; the bearing component is connected to the output end of the supporting rotation component and extends to the bottom of the horizontally suspended connector (02) for supporting the connector (02); the clamping component is arranged on the output end of the supporting rotation component and clamps the connector (02); the bearing component and the clamping component are driven by the supporting rotation component to drive the supported and fixed connector (02) to rotate as a whole, thereby completing the flipping and bending of the connector (02); The pressing needle and shaping mechanism (4) are arranged on the other side of the FPC support (1), and the pressing needle and shaping mechanism (4) output linear power along the X-axis direction and the Y-axis direction, and are used to drive the second pressing needle to extend above the flexible FPC (0), and move in a straight line along the X-axis direction along the surface of the flexible FPC (0), completing the shaping of the belt surface before bending, and moving to the connector (02) to be bent. When the connector (02) is bent, the pressing needle and shaping mechanism (4) press the flexible FPC (0), and serve as the bending rotation center axis to control the bending arc; The invention also includes a clamping mechanism (2), which is arranged on the side of the FPC support (1) and is used to clamp and fix the flexible FPC (0) from above; the clamping mechanism (2) includes a clamping cylinder (21), a clamping shaft (22), a support block (23), a clamping block (24), a positioning sleeve (25) and a positioning column (26), wherein the clamping cylinder (21) is arranged on the side of the FPC support (1) and the output end is arranged upward; the clamping shaft (22) is vertically connected to the output shaft of the clamping cylinder (21), and the clamping cylinder (21) drives the clamping shaft (22) to move up and down and rotate; the support block (23) is horizontally connected to the top of the clamping shaft (22) and extends horizontally to the FPC The support (1) is located above the support; the pressing block (24) is located at the bottom of the support block (23); the positioning sleeve (25) is located on the FPC support (1); the positioning column (26) is vertically located at the bottom of the support block (23); the pressing cylinder (21) drives the support block (23) to rotate so that when the flexible FPC (0) is taken in and placed, the support block (23) is rotated to the outside of the FPC support (1), and is rotated to the top of the FPC support (1) before the connector is bent, and the angular position of the pressing rotation is limited by the mutual insertion of the positioning sleeve (25) and the positioning column (26), so that the pressing block (24) is located above the flexible FPC (0), and then the support block (23) is driven to descend so as to press and fix the flexible FPC (0) from above; The pressure needle and shaping mechanism comprises a shaping support (41), a first translation assembly, a second translation assembly and a second pressure needle (47), wherein the shaping support (41) is vertically connected and fixed to the bottom of the other side of the FPC support (1) and extends along the X-axis direction; the first translation assembly is arranged on the side wall of the shaping support (41) and outputs power along the X-axis direction; the second translation assembly is connected to the output end of the first translation assembly and outputs power along the Y-axis direction; the second pressure needle (47) is connected to the output end of the second translation assembly The second pressing needle (47) is driven by the power output of the second translation component to extend to the top of the FPC support (1) along the Y-axis direction so as to press the flexible FPC (0), or retract to the outside of the FPC support (1) so as to take and place the flexible FPC (0) on the FPC support (1); the second pressing needle (47) is driven by the power output of the first translation component to move along the X-axis direction so as to perform shaping and flattening on the surface of the flexible FPC (0).

2. A flexible FPC connector bending device according to claim 1, characterized in that: The FPC support (1) includes a support seat (11), a step support seat (12), a limit reference block (13) and a vacuum suction nozzle (14), wherein the support seat (11) is horizontally arranged along the X-axis direction; the step support seat (12) is arranged on one end wall of the support seat (11), and there is a height difference (h) between the step support seat (12) and the surface of the support seat (11); two rows of mounting grooves (A) are provided on the support seat (11), and the mounting grooves (A) are sunken into the support seat (11) and connected to the side of the support seat (11) to form an open slot; the limit reference block (13) includes at least two blocks, and the limit reference block (13) slides into the open slot. The flexible FPC (0) is installed in the installation slot (A), and after adjusting its position along the Y-axis direction in the installation slot (A), it is fixed in the installation slot (A) by means of bolts; a placement channel is formed between the limit reference blocks (13) fixed in the two rows of installation slots (A), and is used to place the flexible FPC (0); during the placement process, the flexible FPC (0) is guided and positioned along the Y-axis direction by the limit reference blocks (13); the vacuum suction nozzle (14) includes at least two, and at least two vacuum suction nozzles (14) are arranged in the placement channel at intervals along the X-axis direction, and the lower end of the vacuum suction nozzle (14) passes through the support seat (11) and is connected to the external vacuum generator, and the flexible FPC (0) is fixed downward by vacuum negative pressure.

3. The flexible FPC connector bending device according to claim 2, characterized in that: The flexible FPC (0) comprises an FPC belt (01) and a connector (02); wherein the FPC belt (01) is horizontally placed in the placement channel along the X-axis direction and is fixed downward by vacuum adsorption via a vacuum nozzle (14); the connector (02) is arranged at the end of the FPC belt (01), and the connector (02) extends horizontally outward through a step support seat (12) and is suspended in the air.

4. The flexible FPC connector bending device according to claim 1, characterized in that: The supporting rotation assembly comprises a bending support (31), a bending cylinder (32), a rotating block (33) and a rotating bracket (34), wherein the bending support (31) is connected and fixed to one side of the FPC support (1) and extends outward to form a vertical supporting surface spaced apart from the FPC support (1); the bending cylinder (32) is arranged on the vertical supporting surface, and the output end is arranged toward the FPC support (1); the rotating block (33) is connected to the output end of the bending cylinder (32) and is driven by the bending cylinder (32) to rotate in a vertical plane; the rotating bracket (34) is an L-shaped structure, the vertical plate of the rotating bracket (34) is connected to the side wall of one end of the rotating block (33), and the horizontal plate of the rotating bracket (34) extends toward the FPC support (1) along the Y-axis direction.

5. The flexible FPC connector bending device according to claim 4, characterized in that: The bearing assembly includes a connecting block (35) and a connector support (36), wherein the connecting block (35) is connected to the bottom of the horizontal plate of the rotating bracket (34) and extends toward the connector (02) along the X-axis direction; the connector support (36) is arranged on the connecting block (35), and an embedded groove is provided on the connector support (36); in the initial state, the connector (02) of the flexible FPC (0) is placed in the embedded groove of the connector support (36) and is supported by the connector support (36).

6. The flexible FPC connector bending device according to claim 4, characterized in that: The clamping assembly includes a clamping cylinder (37) and a clamping block (38), wherein the clamping cylinder (37) is arranged on a horizontal plate of the rotating bracket (34), and the output end is arranged in the direction of the connector (02); the clamping block (38) includes two blocks, and the two clamping blocks (38) are respectively connected to the output end of the clamping cylinder (37) and extend to the front and rear sides of the connector (02) along the X-axis direction respectively. The clamping cylinder (37) drives the two clamping blocks (38) to clamp or release the connector (02).

7. The flexible FPC connector bending device according to claim 4, characterized in that: The bending mechanism further comprises a first pressing needle (39); the first pressing needle (39) is arranged on the rotating block (33) and extends along the Y-axis direction toward the FPC support (1); the first pressing needle (39) is coaxial with the rotation center axis of the rotating block (33).

8. The flexible FPC connector bending device according to claim 1, characterized in that: The end of the second pressing needle (47) is provided with a pressing needle interface (B). After the second pressing needle (47) moves along the X-axis direction along the surface of the flexible FPC (0) and completes the shaping, the pressing needle interface (B) is engaged with the pressing needle interface provided at the end of the first pressing needle of the bending mechanism (3) to form a complete cylinder. The second pressing needle (47) is positioned by the preset bending position of the first pressing needle.

9. A bending machine comprising the flexible FPC connector bending device according to any one of claims 1 to 8.

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