Bending mechanism

Abstract

The embodiment of the utility model relates to the technical field of bending, and provides a bending mechanism. The bending mechanism comprises a bottom box, a fixing module, a cover plate module, a pre-bending module and an adjusting module. The fixing module is arranged on the bottom box. The fixing module is used for bearing and fixing a flexible circuit board to be bent. The cover plate module is arranged on the bottom box. The cover plate module is used for pressing the flexible circuit board to the fixing module. The pre-folding module is arranged on the bottom box. The pre-bending module is used for bending the flexible circuit board on the fixing module. The adjusting module is connected between the bottom box and the pre-folding module. The adjusting module is used for adjusting the position of the pre-folding module relative to the fixing module so as to adjust the pre-folding position of the pre-folding module on the flexible circuit board. The bending mechanism is high in working efficiency and bending precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the bending technical field, in particular to a bending mechanism. BACKGROUND

[0002] In electronic products, different electronic components are usually electrically connected by flexible circuit boards. In the process of assembling electronic products, the flexible circuit boards need to be pre-bent. In the related art, the bending operation of the flexible circuit board is usually performed manually, which has low work efficiency and poor bending precision. CONTENT

[0003] In view of the above, it is necessary to provide a bending mechanism to solve the problems of low work efficiency and poor bending precision in the related art.

[0004] Embodiments of the present application provide a bending mechanism. The bending mechanism includes a bottom box, a fixed mold group, a cover plate mold group, a pre-bending mold group and an adjusting mold group. The fixed mold group is arranged on the bottom box and is used to carry and fix the flexible circuit board to be bent. The cover plate mold group is arranged on the bottom box and is used to press the flexible circuit board tightly to the fixed mold group. The pre-bending mold group is arranged on the bottom box and is used to bend the flexible circuit board on the fixed mold group. The adjusting mold group is connected between the bottom box and the pre-bending mold group, and is used to adjust the position of the pre-bending mold group relative to the fixed mold group, thereby adjusting the pre-bending position of the pre-bending mold group to the flexible circuit board.

[0005] The bending mechanism of the embodiments of the present application has the bottom box as the basis of the overall structure, and the flexible circuit board is fixed by the fixed mold group, which is conducive to ensuring the stability of the flexible circuit board during the bending process and avoiding displacement of the flexible circuit board during the bending process, thereby improving the consistency and bending precision of the bending. The pre-bending mold group is responsible for the preliminary bending operation of the flexible circuit board, and the adjusting mold group makes the position of the pre-bending mold group adjustable, so that the bending position can be flexibly adjusted to adapt to the bending operation of flexible circuit boards of different specifications or multiple pre-bending positions of flexible circuit boards of the same specification, improve the versatility and automation degree of the bending mechanism, reduce manual operation, and improve work efficiency and bending precision.

[0006] In some embodiments, the adjusting mold group includes a first adjusting assembly and a second adjusting assembly; the first adjusting assembly is connected to the bottom box; the second adjusting assembly is connected between the first adjusting assembly and the pre-bending mold group; the first adjusting assembly is used to adjust the position of the second adjusting assembly and the pre-bending mold group relative to the fixed mold group along a first direction; the second adjusting assembly is used to adjust the position of the pre-bending mold group relative to the fixed mold group along a second direction; the pre-bending mold group, the second adjusting assembly and the first adjusting assembly are arranged in sequence along a third direction; the first direction, the second direction and the third direction are intersected two by two.

[0007] In some embodiments, the first adjusting assembly comprises a first guide rail, a first sliding block and a first locking member; the first guide rail is connected to the bottom box; the first sliding block is slidingly connected to a side of the first guide rail away from the bottom box and is capable of sliding along a first direction relative to the first guide rail; the first locking member is used for locking the relative position of the first sliding block and the first guide rail; the second adjusting assembly comprises a second guide rail, a second sliding block and a second locking member; the second guide rail is arranged on a side of the first sliding block away from the bottom box; the second sliding block is slidingly connected to the second guide rail and is capable of sliding along a second direction relative to the second guide rail; the second locking member is used for locking the relative position of the second sliding block and the second guide rail.

[0008] In some embodiments, the fixing mold assembly comprises a positioning member, a first pre-folding head and a vacuum generator; the positioning member is connected to the bottom box and has a positioning groove matched with the flexible circuit board; the first pre-folding head is connected to the bottom box and is located between the positioning member and the pre-folding mold assembly, and has a vacuum suction hole; the vacuum generator is located in the bottom box, is connected to the first pre-folding head and is in communication with the vacuum suction hole to adsorb the flexible circuit board.

[0009] In some embodiments, the pre-folding mold assembly comprises a support, a sliding rail, a driving member and a second pre-folding head; the support is connected to a side of the adjusting mold assembly away from the bottom box; the sliding rail is connected to the support; the driving member is slidingly connected to the sliding rail; the second pre-folding head is connected to the driving member and is used for cooperating with the first pre-folding head to pre-bend the flexible circuit board.

[0010] In some embodiments, the cover plate mold assembly comprises a base, a cover plate and a turnover member; the base is connected to the bottom box; the cover plate is rotationally connected to the base and is used for pressing the flexible circuit board against the first pre-folding head; the turnover member is located between the cover plate and the bottom box, is rotationally connected to the base and is used for driving the cover plate to rotate relative to the base to make the cover plate approach or move away from the first pre-folding head.

[0011] In some embodiments, the cover plate mold assembly further comprises an inverted U-shaped frame and an elastic member; the inverted U-shaped frame is connected to the turnover member and is capable of moving synchronously with the turnover member, and the cover plate is located between the inverted U-shaped frame and the turnover member; the elastic member is connected between the inverted U-shaped frame and the cover plate.

[0012] In some embodiments, the cover plate mold assembly further comprises a buffer member; the buffer member is located on the base, and the inverted U-shaped frame abuts against the buffer member when the cover plate is in a fully open state.

[0013] In some embodiments, the cover plate mold assembly further comprises a flexible pressing head; the flexible pressing head is arranged at an end of the cover plate and is used for elastically pressing the flexible circuit board against the first pre-folding head.

[0014] In some embodiments, the cover module further includes a connector, a handle, and a reset member; the connector connects to the base box; the handle includes a grip, a connecting portion, and a clamping portion, the grip being exposed from the connector, the connecting portion connecting between the grip and the clamping portion and passing through the connector; the opposite ends of the reset member are respectively connected to the connector and the clamping portion; the connecting portion is movable within the connector so that the clamping portion can compress the reset member and retract into the connector, or extend out of the connector under the reset action of the reset member, pressing down on the flipping member. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the bending mechanism according to an embodiment of this application.

[0016] Figure 2 for Figure 1 A schematic diagram of the fixed module of the bending mechanism.

[0017] Figure 3 for Figure 1 A schematic diagram of the structure of the fixed module and the cover plate module of the bending mechanism.

[0018] Figure 4 for Figure 3 A schematic cross-sectional view of the clamping assembly along line IV-IV.

[0019] Figure 5 for Figure 1 A schematic diagram of the bending mechanism in the state where the cover plate module is pressed down to the fixed module.

[0020] Figure 6 for Figure 1 A schematic diagram of the pre-bending module of the bending mechanism.

[0021] Figure 7 for Figure 1 Another perspective structural diagram of the bending mechanism when the cover plate module is pressed down to the fixed module.

[0022] Figure 8 for Figure 7 A schematic diagram of the adjustment module of the bending mechanism.

[0023] Figure 9 for Figure 8 An exploded view of the adjustment module of the bending mechanism.

[0024] Figure 10 for Figure 1 A schematic diagram showing the combination of the first pre-folding head and the second pre-folding head.

[0025] Figure 11 for Figure 1 A partially exploded diagram of the bending mechanism.

[0026] Figure 12 As shown in FIG. 1, the bending mechanism 100 comprises a bottom box 10, a front panel 11, a rear panel 12, a left panel 13, a right panel 14, a top panel 15, a bottom panel 16, a foot pad 17, a protective cover 18, a fixed mold 20, a positioning member 21, a first pre-bending head 22, a vacuum generator 23, a cover plate mold 30, a base 31, a cover plate 32, a turnover member 33, an inverted U-shaped frame 34, an elastic member 35, a buffer member 36, a flexible pressing head 37, a pressing assembly 38, a handle 381, a holding portion 381a, a pressing portion 381b, a connecting portion 381c, a connecting member 382, a reset member 383, a pre-bending mold 40, a support 41, a sliding rail 42, a driving member 43, a second pre-bending head 44, a sensor 45, an adjusting mold 50, a first adjusting assembly 51, a first guide rail 511, a first sliding block 512, a first locking member 513, a second adjusting assembly 52, a second guide rail 521, a second sliding block 522, a second locking member 523, a control mold 60, a programmable controller 61, a time relay 62, a solenoid valve 63, an intermediate relay 64, an air pressure gauge 65, a button 66, an indicator light 67, and a protective cover 70. Figure 1 As shown in FIG. 1, the bending mechanism 100 comprises a bottom box 10, a front panel 11, a rear panel 12, a left panel 13, a right panel 14, a top panel 15, a bottom panel 16, a foot pad 17, a protective cover 18, a fixed mold 20, a positioning member 21, a first pre-bending head 22, a vacuum generator 23, a cover plate mold 30, a base 31, a cover plate 32, a turnover member 33, an inverted U-shaped frame 34, an elastic member 35, a buffer member 36, a flexible pressing head 37, a pressing assembly 38, a handle 381, a holding portion 381a, a pressing portion 381b, a connecting portion 381c, a connecting member 382, a reset member 383, a pre-bending mold 40, a support 41, a sliding rail 42, a driving member 43, a second pre-bending head 44, a sensor 45, an adjusting mold 50, a first adjusting assembly 51, a first guide rail 511, a first sliding block 512, a first locking member 513, a second adjusting assembly 52, a second guide rail 521, a second sliding block 522, a second locking member 523, a control mold 60, a programmable controller 61, a time relay 62, a solenoid valve 63, an intermediate relay 64, an air pressure gauge 65, a button 66, an indicator light 67, and a protective cover 70.

[0027] Figure 13 As shown in FIG. 1, the bending mechanism 100 comprises a bottom box 10, a front panel 11, a rear panel 12, a left panel 13, a right panel 14, a top panel 15, a bottom panel 16, a foot pad 17, a protective cover 18, a fixed mold 20, a positioning member 21, a first pre-bending head 22, a vacuum generator 23, a cover plate mold 30, a base 31, a cover plate 32, a turnover member 33, an inverted U-shaped frame 34, an elastic member 35, a buffer member 36, a flexible pressing head 37, a pressing assembly 38, a handle 381, a holding portion 381a, a pressing portion 381b, a connecting portion 381c, a connecting member 382, a reset member 383, a pre-bending mold 40, a support 41, a sliding rail 42, a driving member 43, a second pre-bending head 44, a sensor 45, an adjusting mold 50, a first adjusting assembly 51, a first guide rail 511, a first sliding block 512, a first locking member 513, a second adjusting assembly 52, a second guide rail 521, a second sliding block 522, a second locking member 523, a control mold 60, a programmable controller 61, a time relay 62, a solenoid valve 63, an intermediate relay 64, an air pressure gauge 65, a button 66, an indicator light 67, and a protective cover 70. Figure 1

[0028]

[0029] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described below in detail with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and should not be construed as limiting the present application.

[0031] ​​In the description of the embodiments of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the implementation methods of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features.

[0033] In the description of the embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of the embodiments of this application, unless otherwise stated, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections, electrical connections, or connections that can communicate with each other; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components or interactive relationships between two components.

[0035] Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Figure 1 This is a schematic diagram of the bending mechanism 100 according to an embodiment of this application. Figure 1 As shown, the bending mechanism 100 includes a base box 10, a fixing module 20, a cover plate module 30, a pre-bending module 40, and an adjusting module 50.

[0037] A fixing module 20 is mounted on the base box 10 and is used to support and fix the flexible circuit board 200 to be bent. A cover plate module 30 is mounted on the base box 10 and is used to press the flexible circuit board 200 to the fixing module 20. A pre-bending module 40 is mounted on the base box 10 and is used to bend the flexible circuit board 200 on the fixing module 20. An adjusting module 50 is connected between the base box 10 and the pre-bending module 40. The adjusting module 50 is used to adjust the position of the pre-bending module 40 relative to the fixing module 20, thereby adjusting the pre-bending position of the pre-bending module 40 on the flexible circuit board 200.

[0038] In some embodiments, the flexible circuit board 200 can be a micro flexible cable for electronic products such as mobile phones, tablets, virtual reality glasses, etc. which have high requirements for pre-folding accuracy.

[0039] The bending mechanism 100 of the embodiments of the present application fixes the flexible circuit board 200 through the fixing module 20 to avoid displacement during the bending process, thereby improving the bending accuracy. The pre-folding module 40 realizes the preliminary bending operation of the flexible circuit board 200, which can significantly improve the work efficiency and consistency compared with manual bending. The adjusting module 50 makes the position of the pre-folding module 40 adjustable, which flexibly adapts to flexible circuit boards 200 of different specifications and various pre-folding positions, thereby improving the versatility of the bending mechanism 100. In addition, each part of the bending mechanism 100 is modularly designed, which is convenient to replace and optimize.

[0040] Figure 2 For Figure 1 FIG. 1 is a schematic view of the fixing module 20 of the bending mechanism 100. Please refer to Figure 1 and Figure 2 The fixing module 20 includes a positioning member 21, a first pre-folding head 22, and a vacuum generator 23.

[0041] The positioning member 21 is connected with the bottom box 10 and is located outside the bottom box 10. The positioning member 21 has a positioning groove R which is adapted to the flexible circuit board 200. The first pre-folding head 22 is connected with the bottom box 10 and is located between the positioning member 21 and the pre-folding module 40. The first pre-folding head 22 has a vacuum suction hole H. The vacuum generator 23 is located in the bottom box 10, is connected with the first pre-folding head 22, and is in communication with the vacuum suction hole H to adsorb the flexible circuit board 200.

[0042] Therefore, the positioning groove R of the positioning member 21 ensures the accurate fixing of the main body part 210 of the flexible circuit board 200, thereby improving the accuracy of the bending. The first pre-folding head 22 and the vacuum generator 23 fix the to-be-bent part 220 of the flexible circuit board 200 by vacuum adsorption, which avoids the movement or wrinkling of the flexible circuit board 200 and improves the processing quality.

[0043] Specifically, the flexible circuit board 200 includes a main body part 210 and a to-be-bent part 220 connected with the main body part 210. The shape and size of the positioning groove R of the positioning member 21 are adapted to the main body part 210 of the flexible circuit board 200 to clasp and fix the main body part 210 of the flexible circuit board 200. The first pre-folding head 22 also has a limiting part L located on the opposite sides of the vacuum suction hole H. The limiting part L protrudes from the surface of the first pre-folding head 22 where the vacuum suction hole H is formed, which is used to limit the position of the to-be-bent part 220 of the flexible circuit board 200 and prevent the movement of the flexible circuit board 200.

[0044] In some embodiments, the vacuum holes H are arranged in multiple rows and multiple columns to increase the adsorption area of the flexible circuit board 200 and the uniformity of adsorption.

[0045] Figure 3 For Figure 1 The structure diagram of the fixed die set 20 and the cover plate set 30 of the bending mechanism 100. Please refer to Figure 1 and Figure 3 The cover plate set 30 includes a base 31, a cover plate 32, and a turnover piece 33.

[0046] The base 31 is connected to the bottom box 10. The cover plate 32 is rotationally connected to the base 31 and is used to press the to-be-bent part 220 of the flexible circuit board 200 tightly to the first pre-bending head 22. The turnover piece 33 is located between the cover plate 32 and the bottom box 10. The turnover piece 33 is rotationally connected to the base 31 and is used to drive the cover plate 32 to rotate relative to the base 31 to make the cover plate 32 close to or away from the first pre-bending head 22.

[0047] In this way, the cover plate 32 realizes the pressing of the flexible circuit board 200 through the turnover piece 33, ensuring the sufficient contact between the to-be-bent part 220 and the first pre-bending head 22, thereby ensuring the bending quality. The design of the turnover piece 33 improves the flexibility of operation, and the flexible circuit board 200 can be easily fixed and loosened, which is conducive to simplifying the clamping process of the flexible circuit board 200 and improving the operation efficiency of the bending mechanism 100.

[0048] The cover plate set 30 further includes an inverted U-shaped frame 34 and an elastic piece 35. The inverted U-shaped frame 34 is connected to the turnover piece 33 and can move synchronously with the turnover piece 33. The cover plate 32 is located between the inverted U-shaped frame 34 and the turnover piece 33. The elastic piece 35 is connected between the inverted U-shaped frame 34 and the cover plate 32.

[0049] In this way, the inverted U-shaped frame 34 simplifies the action control of the cover plate set 30 through synchronous movement, improving the overall running stability. The addition of the elastic piece 35 effectively absorbs the vibration of the cover plate 32 in action, reduces mechanical loss, and prolongs the service life of the bending mechanism 100. The cover plate set 30 further includes a buffer piece 36. The buffer piece 36 is located on the base 31. When the cover plate 32 is in a fully open state, the inverted U-shaped frame 34 abuts against the buffer piece 36.

[0050] In this way, the buffer piece 36 is conducive to avoiding the cover plate 32 from hitting the base 31 in the fully open state, protecting the structure of the bending mechanism 100 from being damaged. The durability and reliability of the bending mechanism 100 are enhanced, and the subsequent maintenance cost is reduced.

[0051] The cover plate module 30 further comprises a flexible pressing head 37. The flexible pressing head 37 is arranged at the end of the cover plate 32 and is used to elastically press the to-be-bent part 220 against the first pre-bent head 22. In this way, the flexible pressing head 37 can adapt to flexible circuit boards 200 of different thicknesses, realize flexible pressing, and improve clamping adaptability. By means of elastic pressing, the risk of surface scratching of the flexible circuit board 200 is reduced, and the quality of the flexible circuit board 200 is protected. Moreover, it is beneficial to enhance the fixing effect on the flexible circuit board 200 and avoid deviation during bending.

[0052] In some embodiments, the material of the flexible pressing head 37 can be, but is not limited to, super glue, which can effectively protect the flexible circuit board 200 during operation. The elastic member 35 can be, but is not limited to, a buffer spring, so as to achieve two-stage buffer protection.

[0053] The cover plate module 30 further comprises a pressing assembly 38. The pressing assembly 38 is arranged at one side of the base 31 and is connected to the bottom box 10. The pressing assembly 38 is used to press the turnover member 33 in the cover plate module 30 when the cover plate module 30 is pressed against the fixing module 20, so as to press the cover plate 32 against the flexible circuit board 200.

[0054] Figure 4 For Figure 3 , a sectional view of the pressing assembly 38 along line IV-IV is shown. Please refer to Figure 1 , Figure 3 and Figure 4 for details. The pressing assembly 38 comprises a handle 381, a connecting member 382, and a reset member 383.

[0055] The connecting member 382 is connected to the bottom box 10. The handle 381 comprises a holding portion 381a, a connecting portion 381c, and a pressing portion 381b. The holding portion 381a is exposed from the connecting member 382 and is a part that can be held by a user. The connecting portion 381c is connected between the holding portion 381a and the pressing portion 381b. The connecting portion 381c is arranged in the connecting member 382. The pressing portion 381b is used to press and abut against the turnover member 33. The opposite ends of the reset member 383 are connected to the connecting member 382 and the pressing portion 381b, respectively. The connecting portion 381c can move in the connecting member 382, so that the pressing portion 381b can compress the reset member 383 to retract into the connecting member 382, or extend out of the connecting member 382 under the reset action of the reset member 383, and then press the turnover member 33.

[0056] Figure 5 For Figure 1 , a structural schematic view of the cover plate module 30 of the bending mechanism 100 after being pressed against the fixing module 20 is shown. Please refer to Figure 1 , Figure 4 and Figure 5The clamping part 381b has a guide slope S. During the process of the flipping part 33 of the cover plate module 30 driving the cover plate 32 to cover the fixed module 20, the flipping part 33 presses against the guide slope S, causing the clamping part 381b in the handle 381 to compress the reset part 383 and retract into the connecting part 382. After the flipping part 33 continues to press down to the side of the clamping part 381b near the bottom box 10, the clamping part 381b extends out of the connecting part 382 and presses down the flipping part 33 under the restoring force of the reset part 383, so that the flipping part 33 cannot move away from the bottom box 10.

[0057] Figure 6 for Figure 1 A schematic diagram of the pre-bending module 40 of the bending mechanism 100. (See diagram below.) Figure 6 As shown, the pre-folding module 40 includes a bracket 41, a slide rail 42, a drive component 43, and a second pre-folding head 44.

[0058] The bracket 41 is connected to the side of the adjustment module 50 opposite to the base box 10. The slide rail 42 is connected to the bracket 41. The drive member 43 is slidably connected to the slide rail 42. The second pre-folding head 44 is connected to the drive member 43 and is used to cooperate with the first pre-folding head 22 to pre-bend the part 220 to be bent.

[0059] Therefore, the second pre-folding head 44 cooperates with the first pre-folding head 22 to achieve precise pre-bending of the flexible circuit board 200 to be bent portion 220, further improving the bending quality. The driving component 43 moves through the slide rail 42, providing a stable bending driving force to ensure the smoothness of the pre-folding process. The bracket 41 is connected to the slide rail 42, with a simple and reliable structural design that facilitates adjustment and maintenance.

[0060] The pre-folding module 40 also includes a sensor 45. The sensor 45 is connected to the drive unit 43. In this embodiment, the drive unit 43 is a cylinder, and the sensor 45 is used to detect the position state of the cylinder (such as extension or retraction), thereby monitoring the working state of the cylinder in real time, ensuring that the cylinder stays at the predetermined position, and thus ensuring the accuracy and synchronization of the mechanical action.

[0061] Figure 7 for Figure 1 Another perspective view of the bending mechanism 100 when the cover plate module 30 is pressed down to the fixed module 20. (See diagram below.) Figure 7 As shown, the adjustment module 50 includes a first adjustment component 51 and a second adjustment component 52.

[0062] The first adjusting assembly 51 is connected to the bottom box 10. The second adjusting assembly 52 is connected between the first adjusting assembly 51 and the pre-bending die set 40. The first adjusting assembly 51 is used to adjust the position of the second adjusting assembly 52 and the pre-bending die set 40 relative to the fixed die set 20 along the first direction D1. The second adjusting assembly 52 is used to adjust the position of the pre-bending die set 40 relative to the fixed die set 20 along the second direction D2. The pre-bending die set 40, the second adjusting assembly 52, and the first adjusting assembly 51 are arranged in sequence along the third direction D3. The first direction D1, the second direction D2, and the third direction D3 intersect with each other.

[0063] In this way, the first adjusting assembly 51 and the second adjusting assembly 52 are adjusted along two directions respectively, so that the pre-bending die set 40 can realize multi-degree-of-freedom position adjustment, which is beneficial to enhance the adaptability of the bending mechanism 100, can cope with complex and diverse bending requirements of the flexible circuit board 200, and can improve bending precision and uniformity and reduce dependence on manual operation.

[0064] In some embodiments, the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other. For the sake of description, the first direction D1 is also referred to as the front-rear direction, the second direction D2 is also referred to as the left-right direction, and the third direction D3 is also referred to as the up-down direction.

[0065] Figure 8 For Figure 7 A structural schematic view of the adjusting assembly 50 of the bending mechanism 100. Figure 9 For Figure 8 An exploded schematic view of the adjusting assembly 50 of the bending mechanism 100.

[0066] Please refer to Figure 7 , Figure 8 and Figure 9 The first adjusting assembly 51 includes a first guide rail 511, a first sliding block 512, and a first locking member 513. The first guide rail 511 is connected to the bottom box 10. The first sliding block 512 is slidingly connected to one side of the first guide rail 511 away from the bottom box 10 and can slide relative to the first guide rail 511 along the first direction D1. The first locking member 513 is used to lock the relative position of the first sliding block 512 and the first guide rail 511.

[0067] In this way, through the sliding cooperation of the first guide rail 511 and the first sliding block 512, it is beneficial to realize smooth adjustment action and ensure the accuracy and stability of the adjustment process. The design of the first locking member 513 can effectively fix the adjustment position and prevent displacement during operation, thereby maintaining the stable operation of the bending mechanism 100.

[0068] The second adjusting assembly 52 comprises a second guide rail 521, a second sliding block 522 and a second locking member 523. The second guide rail 521 is arranged on the side of the first sliding block 512 away from the bottom box 10. The second sliding block 522 is slidingly connected to the second guide rail 521 and can slide along the second direction D2 relative to the second guide rail 521. The second locking member 523 is used to lock the relative position of the second sliding block 522 and the second guide rail 521.

[0069] Thus, through the sliding cooperation of the second guide rail 521 and the second sliding block 522, smooth adjustment action is facilitated, and the accuracy and stability of the adjustment process are ensured. The design of the second locking member 523 can effectively fix the adjustment position and prevent displacement during operation, thereby maintaining the stable operation of the bending mechanism 100.

[0070] In some embodiments, the adjusting assembly 50 can perform bidirectional micro-size adjustment in the first direction D1 and the second direction D2, and the pre-bending position and the pre-bending gap of the flexible circuit board 200 can be adjusted to the micron level, which can better pre-bend the flexible circuit board 200 and protect the flexible circuit board 200 from damage, with high safety during operation.

[0071] Figure 10 For Figure 1 The cooperation schematic diagram of the first pre-bending head 22 and the second pre-bending head 44 is shown in FIG. 4. Figure 7 、 Figure 8 、 Figure 9 and Figure 10 The adjusting assembly 50 can adjust the relative position of the second pre-bending head 44 in the pre-bending assembly 40 and the first pre-bending head 22 in the fixing assembly 20 along the first direction D1 by sliding the first sliding block 512 relative to the first guide rail 511 along the first direction D1. The adjusting assembly 50 can adjust the relative position of the second pre-bending head 44 in the pre-bending assembly 40 and the first pre-bending head 22 in the fixing assembly 20 along the second direction D2 by sliding the second sliding block 522 relative to the second guide rail 521 along the second direction D2, thereby enabling the bending mechanism 100 to adjust the position and precision of the pre-bending of the flexible circuit board 200.

[0072] Figure 11 For Figure 1 The partial exploded schematic diagram of the bending mechanism 100 is shown in FIG. 5. As shown in FIG. 5, the bending mechanism 100 further comprises a control assembly 60. The control assembly 60 is installed on the bottom box 10 and connected to the fixing assembly 20, the cover assembly 30, the pre-bending assembly 40 and the adjusting assembly 50 to control the action of each assembly and realize the automation design of the bending mechanism 100. Specifically, the control assembly 60 comprises a programmable logic controller 61 (PLC), a time relay 62, an electromagnetic valve 63, an intermediate relay 64 and a pressure gauge 65. Figure 11 ​

[0073] The programmable controller 61 is the core controller of the entire bending mechanism 100, responsible for receiving input signals from the operation interface or sensors, executing pre-set logic programs, and outputting control signals to drive other modules, thereby realizing various control functions such as sequential control, time control, and counting control, ensuring that the bending action meets the set process requirements. The programmable controller 61 outputs control signals through the intermediate relay 64 to indirectly or directly control the opening and closing of the electromagnetic valve 63.

[0074] The time relay 62 is connected to the programmable controller 61. The time relay 62 is used for time control, which introduces time delay or timing function in the control logic, such as delay start and delay stop, to ensure that each action is performed in a predetermined time sequence, avoiding mechanical conflicts or operation errors. Among them, the programmable controller 61 triggers the time relay 62 through the output signal, and the time relay 62 outputs a signal after a set time delay to further control the intermediate relay 64 or the electromagnetic valve 63, realizing coordinated control in time.

[0075] The intermediate relay 64 is connected between the programmable controller 61 and the electromagnetic valve 63. The intermediate relay 64 is used to amplify the weak control signal output by the programmable controller 61, or to realize electrical isolation of the control signal, protecting the programmable controller 61 from high current or voltage. Specifically, the control signal output by the programmable controller 61 first drives the intermediate relay 64, which in turn controls the on-off of the electromagnetic valve 63. After the time relay 62 outputs a signal, the intermediate relay 64 further drives the subsequent module, ensuring the correct timing of the action.

[0076] The electromagnetic valve 63 is connected to the intermediate relay 64 and is used to receive the control signal of the intermediate relay 64 to switch the opening and closing state of the gas circuit. The electromagnetic valve 63 is also connected to the gas source and the driving part 43 (such as the air cylinder), which adjusts the flow direction and pressure of the gas flow by controlling the opening and closing of the gas circuit, thereby driving the extension and retraction of the air cylinder, realizing the mechanical action of the bending mechanism 100.

[0077] The air pressure gauge 65 is installed in the gas circuit, located in front of the electromagnetic valve 63 and at the air inlet of the driving part 43 (such as the air cylinder), used to display the air pressure state of the system in real time. The air pressure gauge 65 is also connected to the programmable controller 61 to feed back the air pressure state to the programmable controller 61, realizing closed-loop control to ensure the stability and safety of the air pressure.

[0078] Specifically, the operator inputs the bending instruction through the operation interface, or the sensor detects that the bending action needs to be performed. The programmable controller 61 receives the input signal, processes it according to the preset logic program, and outputs the corresponding control signal. The control signal of the programmable controller 61 is amplified or isolated by the intermediate relay 64 to ensure the stability and safety of the signal. According to the needs, the time relay 62 adds a time delay to the control signal to ensure the timing coordination of the action. The output signal of the intermediate relay 64 or the time relay 62 drives the electromagnetic valve 63 to control the opening and closing state of the gas circuit. The opening and closing of the electromagnetic valve 63 adjusts the air flow to drive the driving member 43 in the bending module to perform the extension and retraction movement, and complete the bending action. The air pressure gauge 65 monitors the system air pressure in real time, and feeds back the pressure state to the programmable controller 61 to ensure that the bending mechanism 100 operates safely within the set pressure range. In this way, through reasonable electrical and pneumatic connection, the stable, efficient and safe operation of the bending mechanism 100 is ensured, and the demand for automated production is realized.

[0079] More specifically, the base box 10 is generally a hollow cuboid. The base box 10 includes a front panel 11, a rear panel 12, a left panel 13, a right panel 14, a top panel 15, a bottom panel 16, and foot pads 17. The front panel 11 and the rear panel 12 are opposite along a first direction D1. The left panel 13 and the right panel 14 are opposite along a second direction D2. The top panel 15 and the bottom panel 16 are opposite along a third direction D3. The front panel 11, the left panel 13, the rear panel 12, and the right panel 14 are sequentially connected between the top panel and the bottom panel 16. A plurality of foot pads 17 are spaced apart and connected to a side of the bottom panel 16 away from the top panel 15.

[0080] The fixing module 20, the cover plate module 30, and the adjusting module 50 are all connected to the top panel 15 of the base box 10. The programmable controller 61, the time relay 62, the electromagnetic valve 63, the intermediate relay 64, and the air pressure gauge 65 in the control module 60 are all located inside the base box 10 to be protected by the base box 10.

[0081] The control module 60 also includes buttons 66 and indicator lights 67. The buttons 66 are connected to the programmable controller 61. In this embodiment, there are multiple buttons 66, some of which are exposed from the front panel 11 of the base box 10, and some of which are exposed from the left panel 13 and the right panel 14. The multiple buttons 66 can be used by the operator to perform operations such as turning on, turning off, and pausing the bending mechanism 100. The indicator lights 67 are located on the top panel 15 and are electrically connected to the programmable controller 61. The indicator lights 67 can display different working states of the bending mechanism 100.

[0082] The bending mechanism 100 also includes a protective cover 70. The protective cover 70 is arranged on the side of the pre-bending module 40 away from the base box 10 to protect the pre-bending module 40 from being hit or contaminated by dust.

[0083] Some embodiments, the overall peripheral size of the bending mechanism 100 is 240mm x 260mm x 240mm, easy to place, not strict environmental requirements, can be popularized.

[0084] Figure 12 For Figure 1 the part structure diagram of the bending mechanism 100. Please refer to Figure 1 , 11 and Figure 12 , the top plate 15 of the bottom box 10 is provided with a through hole 15h corresponding to the air pressure gauge 65. The bottom box 10 further comprises a protective cover 18. The protective cover 18 is covered and connected to the top plate 15, and is provided corresponding to the through hole 15h. The protective cover 18 can be transparent, so that the value of the air pressure gauge 65 can be observed.

[0085] The working process of the bending mechanism 100 is described in detail as follows:

[0086] First, as shown in Figure 13 , the cover plate module 30 is opened relative to the fixed module 20.

[0087] Then, as shown in Figure 1 , the flexible circuit board 200 is placed in the fixed module 20, so that the main body part 210 of the flexible circuit board 200 is positioned in the positioning groove R of the positioning part, and the to-be-bent part 220 is limited between the limiting parts L of the first pre-bending head 22, and the button 66 in the control module 60 is pressed, so that the fixed module 20 vacuum adsorbs the to-be-bent part 220 of the flexible circuit board 200.

[0088] After that, as shown in Figure 5 , the cover plate 32 is closed, and the buttons 66 at the left panel 13 and the right panel 14 flash. Press the buttons 66 at the left panel 13 and the right panel 14. The driving part 43 in the pre-bending module 40 acts, and under the cooperation of the first pre-bending head 22 and the second pre-bending head 44, the to-be-bent part 220 of the flexible circuit board 200 starts to pre-bend, and after a preset pressure maintaining time (such as 5 seconds), the vacuum adsorption function of the fixed module 20 is disconnected, and the pre-bending is completed.

[0089] Finally, the cover plate 32 is opened, and the flexible circuit board 200 that has completed the pre-bending is taken out, and the operation is completed. The bending mechanism 100 is in the state shown in Figure 13 , and the bending process of the next flexible circuit board 200 starts.

[0090] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A bending mechanism characterized by, The bending mechanism comprises: a bottom box; a fixing module arranged on the bottom box, the fixing module being used for bearing and fixing a flexible circuit board to be bent; a cover plate module arranged on the bottom box, the cover plate module being used for pressing the flexible circuit board to the fixing module; a pre-bending module arranged on the bottom box, the pre-bending module being used for bending the flexible circuit board on the fixing module; and an adjusting module connected between the bottom box and the pre-bending module, the adjusting module being used for adjusting the position of the pre-bending module relative to the fixing module, so as to adjust the pre-bending position of the pre-bending module to the flexible circuit board.

2. The bending mechanism according to claim 1, wherein the adjusting module comprises a first adjusting assembly and a second adjusting assembly; the first adjusting assembly is connected to the bottom box; the second adjusting assembly is connected between the first adjusting assembly and the pre-bending module; the first adjusting assembly is used for adjusting the position of the second adjusting assembly and the pre-bending module relative to the fixing module in a first direction; the second adjusting assembly is used for adjusting the position of the pre-bending module relative to the fixing module in a second direction; the pre-bending module, the second adjusting assembly and the first adjusting assembly are arranged in sequence in a third direction; the first direction, the second direction and the third direction are intersected with each other.

3. The bending mechanism according to claim 2, wherein the first adjusting assembly comprises a first guide rail, a first sliding block and a first locking member; the first guide rail is connected to the bottom box; the first sliding block is slidingly connected to a side of the first guide rail away from the bottom box and can slide relative to the first guide rail in the first direction; the first locking member is used for locking the relative position of the first sliding block and the first guide rail; the second adjusting assembly comprises a second guide rail, a second sliding block and a second locking member; the second guide rail is arranged on a side of the first sliding block away from the bottom box; the second sliding block is slidingly connected to the second guide rail and can slide relative to the second guide rail in the second direction; the second locking member is used for locking the relative position of the second sliding block and the second guide rail.

4. The bending mechanism according to any one of claims 1 to 3, wherein the fixing module comprises a positioning member, a first pre-bending head and a vacuum generator; the positioning member is connected to the bottom box, and the positioning member has a positioning groove matched with the flexible circuit board; the first pre-bending head is connected to the bottom box and located between the positioning member and the pre-bending module, and the first pre-bending head has a vacuum suction hole; the vacuum generator is located in the bottom box, connected to the first pre-bending head and in communication with the vacuum suction hole, so as to adsorb the flexible circuit board.

5. The bending mechanism according to claim 4, wherein the pre-bending module comprises a support, a sliding rail, a driving member and a second pre-bending head; the support is connected to a side of the adjusting module away from the bottom box; the sliding rail is connected to the support; the driving member is slidingly connected to the sliding rail. ​ ​ ​ ​ ​ The second pre-bending head is connected with the driving member and is used to cooperate with the first pre-bending head to pre-bend the flexible circuit board.

6. The bending mechanism according to claim 5, characterized in that, The cover module comprises a base, a cover and a turnover member: The base is connected with the bottom box; The cover is rotatably connected with the base and is used to press the flexible circuit board against the first pre-bending head; The turnover member is located between the cover and the bottom box, and is rotatably connected with the base and used to drive the cover to rotate relative to the base so as to make the cover approach or move away from the first pre-bending head.

7. The bending mechanism according to claim 6, characterized in that, The cover module further comprises an inverted U-shaped frame and an elastic member; The inverted U-shaped frame is connected with the turnover member and can move synchronously with the turnover member, and the cover is located between the inverted U-shaped frame and the turnover member; The elastic member is connected between the inverted U-shaped frame and the cover.

8. The bending mechanism according to claim 7, characterized in that, The cover module further comprises a buffer member; The buffer member is located on the base, and the inverted U-shaped frame abuts against the buffer member when the cover is in a fully open state.

9. The bending mechanism according to claim 6, characterized in that, The cover module further comprises a flexible pressing head, which is arranged at an end of the cover and is used to elastically press the flexible circuit board against the first pre-bending head.

10. The bending mechanism according to claim 6, characterized in that, The cover module further comprises a connecting member, a handle and a reset member; The connecting member is connected with the bottom box; The handle comprises a gripping portion, a connecting portion and a pressing portion, the gripping portion is exposed from the connecting member, the connecting portion is connected between the gripping portion and the pressing portion and is arranged in the connecting member; The opposite ends of the reset member are connected with the connecting member and the pressing portion, respectively; The connecting portion can move in the connecting member so that the pressing portion can compress the reset member to retract into the connecting member or extend out of the connecting member under the reset action of the reset member to press the turnover member.

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