CN111016141A

CN111016141A - Flexible circuit board automatic bending machine

Info

Publication number: CN111016141A
Application number: CN201911399930.8A
Authority: CN
Inventors: 吴海洋; 申宇; 黄景文; 刘作龙; 刘明; 许仙冬; 黄确平
Original assignee: World Precision Manufacturing Dongguan Co Ltd
Current assignee: World Precision Manufacturing Dongguan Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-17

Abstract

The invention discloses an automatic flexible circuit board bending machine which comprises a rack, a feeding device, a turnover device, a first manipulator, a second manipulator, a carrier conveying device, a folding and bending device, a three-folding and bending device and a discharging device, wherein the feeding device, the turnover device and the three-folding and bending device are arranged on the rack, the feeding device is used for feeding a workpiece to be processed, the turnover device is used for overturning and positioning the position of the workpiece, the first manipulator is used for conveying the workpiece at the feeding device to the turnover device, the second manipulator is used for conveying the workpiece at the turnover device to a feeding station of the carrier conveying device, the carrier conveying device penetrates through the folding and bending device, the two-folding and bending device and the three-folding and bending device, and the carrier conveying device is used for. The automatic flexible circuit board bending machine can automatically complete multiple bending processes of workpieces and 180-degree bending of the workpieces, and has the advantages of high automation degree, high product accuracy and the like.

Description

Flexible circuit board automatic bending machine

Technical Field

The invention relates to the field of electronic component processing, in particular to an automatic bending machine for a flexible circuit board.

Background

In electronic products, different electronic components are usually connected by FPC for power supply and communication: the electronic component is provided with an FPC electrically connected thereto, the FPC protruding outside the electronic component to connect an electrical connection portion of another component. Although the FPC has the advantages of thinness, small occupied space and adaptability to different space occasions, the flexible material of the FPC flexible flat cable also causes the problem of inconvenient connection, and the flexible flat cable needs to be pre-shaped according to the applicable environment so as to facilitate the assembly of electronic products.

In the bending process of the flexible circuit board 100, a plurality of places of the flexible circuit board 100 need to be bent, please refer to fig. 1 to 4 in the description, the flexible circuit board 100 includes a left circuit board 110, a left second elongated plate 120, a left first elongated plate 130, a connecting plate 140, a right first elongated plate 150, a right second elongated plate 160 and a right circuit board 170, which are connected in sequence, in the first bending process, the left second elongated plate 120 needs to be bent toward the left first elongated plate 130, the right second elongated plate 160 needs to be bent toward the right first elongated plate 150 (the bending direction of the first bending is shown by arrow a in fig. 2), the bending angle is close to 180 degrees, and the bending positions between the left first elongated plate 130 and the left second elongated plate 120 and between the right first elongated plate 150 and the right second elongated plate 160 are arc-shaped, so as to avoid breaking; in the second bending step, the left circuit board 110 is bent toward the left second elongated plate 120, and the right circuit board 170 is bent toward the right second elongated plate 160 (the bending direction of the second bending is shown by arrow B in fig. 3); in the third bending process, the left first elongated plate 130 needs to be bent toward the connecting plate 140, the right first elongated plate 150 needs to be bent toward the connecting plate 140 (the bending direction of the third bending is shown by an arrow C in fig. 4), and the bending positions between the left first elongated plate 130 and the connecting plate 140, and between the right first elongated plate 150 and the connecting plate 140 are arc-shaped, so as to avoid breakage, however, the conventional automatic bending machine for flexible circuit boards 100 is difficult to automatically complete the bending process, and thus cannot meet the existing production requirements.

Therefore, there is a need for an automatic bending machine for flexible circuit boards.

Disclosure of Invention

The invention aims to provide an automatic flexible circuit board bending machine which can automatically complete multiple bending processes of workpieces and has the advantages of high automation degree, high product accuracy and the like.

In order to achieve the purpose, the invention discloses an automatic flexible circuit board bending machine which comprises a rack, a feeding device, a turnover device, a first mechanical arm, a second mechanical arm, a carrier for bearing a workpiece, a carrier conveying device, a folding device, a three-folding device and a discharging device, wherein the feeding device is arranged on the rack and used for feeding the workpiece to be processed, the turnover device is used for carrying out turnover positioning on the position of the workpiece, the first mechanical arm is used for conveying the workpiece at the feeding device to the turnover device, the second mechanical arm is used for conveying the workpiece at the turnover device to the feeding station of the carrier conveying device, the carrier conveying device penetrates through the folding device, the two-folding device and the three-folding device, and the carrier conveying device is used for conveying the workpiece on the carrier to the feeding station and the folding station of the folding device in sequence, The blanking device is used for carrying workpieces on the blanking station to the next station.

Preferably, the folding and bending device comprises a folding frame body, a folding upper die, a folding lower die, a folding positioning component, a flat needle component, a pushing component, a folding pressing component, a folding bending component and a top block, the carrier is clamped on the folding frame body under the conveying of the carrier conveying device and is positioned between the folding upper die and the folding lower die, the folding lower die is installed on the folding frame body in a lifting mode, the folding lower die has a folding lower die first position and a folding lower die second position relative to the carrier through lifting, the folding upper die is installed on the folding frame body in a lifting mode, the folding upper die has a folding upper die first position and a folding upper die second position relative to the carrier through descending, the folding positioning component is installed on the folding lower die, and when the folding lower die is positioned at the folding lower die first position, the folding; the flat needle assembly is arranged on a lower folding die in a sliding mode, the pushing piece and the compressing assembly are both arranged on an upper folding die, the flat needle of the flat needle assembly moves under the pushing of the pushing piece, and when the upper folding die is located at the first position of the upper folding die, the flat needle extends into the bending position of a workpiece and the compressing assembly compresses the workpiece on the carrier; the bending assembly is arranged on the bending upper die and comprises a bending driving assembly and a bending gear, the bending driving assembly moves from a first position of the bending upper die to a second position of the bending upper die through the bending upper die, and the bending gear rotates under the driving of the bending driving assembly to bend the workpiece around the flat needle; the top block is arranged on the lower folding die, and the top block presses the bottom of the workpiece to be shaped when being located at the second position of the lower folding die.

Specifically, the flat needle assembly further comprises a matching pushing piece, the matching pushing piece is arranged on a lower folding die, the flat needle is arranged on the matching pushing piece, the pushing piece is provided with an inclined surface, the matching pushing piece is provided with a matching pushing inclined surface matched with the inclined surface, and the flat needle is driven by the matching pushing piece to move by means of sliding fit between the inclined surface and the matching pushing inclined surface.

Specifically, a folding driving assembly comprises a driving rack and an elastic telescopic block, the driving rack is installed on an upper folding die, the elastic telescopic block is elastically installed on the upper folding die, the elastic telescopic block can extend out or retract relative to the upper folding die, a folding gear is pivoted on the elastic telescopic block, and the driving rack is meshed with the folding gear.

Specifically, the folding driving assembly further comprises an elastic piece, the folding upper die is provided with a sliding groove corresponding to the elastic telescopic block, the elastic telescopic block is slidably arranged in the sliding groove, and the elastic piece is elastically compressed between the folding upper die and the elastic telescopic block, so that the elastic telescopic block always has a tendency of extending out of the folding upper die.

Specifically, the outer edge of the bending gear is provided with meshing teeth meshed with the driving rack, a bending groove is formed in one side of the bending gear, the cross section of the bending groove is arc-shaped, the circle center of the bending groove is eccentrically arranged, the bending gear is eccentrically arranged with the pivot point of the elastic telescopic block, and the pivot point of the bending gear and the elastic telescopic block is spaced from the circle center of the bending groove.

Preferably, the two-folding bending device comprises a two-folding frame body, a two-folding upper die, a two-folding lower die, a two-folding positioning assembly, a forming table, a two-folding compressing assembly and a two-folding bending assembly, the carrier is clamped on the two-folding frame body under the conveying of the carrier conveying device and is positioned between the two-folding upper die and the two-folding lower die, the two-folding lower die is arranged on the two-folding frame body in a lifting manner, the two-folding lower die has a first position of the two-folding lower die relative to the carrier through lifting, the two-folding upper die is arranged on the two-folding frame body in a lifting manner, the two-folding upper die has a first position of the two-folding upper die and a second position of the two-folding upper die relative to the carrier through descending, the; the two-folding compressing assembly is arranged on the two-folding upper die, and when the two-folding upper die is positioned at a first position of the two-folding upper die, the two-folding compressing assembly compresses the workpiece on the carrier; the forming table extends to the work piece and forms and be circular-arc protruding structure, and two bend the subassembly and install in two last moulds of bending, bend the subassembly including two bend the drive assembly and bend the gear of bending by two, borrow by two last moulds of bending move to two last moulds of bending second position by two last moulds of bending first position, bend the gear of bending and rotate so that the work piece is buckled around protruding structure under two drive that bend the drive assembly of bending.

Specifically, the two-fold bending driving assembly comprises a driving rack and an elastic telescopic block, the driving rack is installed on the two-fold upper die, the elastic telescopic block is elastically installed on the two-fold upper die, the elastic telescopic block can stretch out or retract relative to the two-fold upper die, a two-fold bending gear is pivoted to the elastic telescopic block, and the driving rack is meshed with the two-fold bending gear.

Preferably, the three-folding bending device comprises a three-folding frame body, a three-folding upper die, a three-folding lower die, a three-folding positioning assembly and a three-folding bending assembly, the carrier is clamped on the three-folding frame body under the conveying of the carrier conveying device and is positioned between the three-folding upper die and the three-folding lower die, the three-folding lower die is arranged on the three-folding frame body in a liftable manner and has a first position of the three-folding lower die and a second position of the three-folding lower die relative to the carrier through rising, the three-folding upper die is arranged on the three-folding frame body in a liftable manner and has a first position of the three-folding upper die relative to the carrier through falling, the three-folding positioning assembly is arranged on the three-folding lower die, and; the three-folding bending assembly comprises a male die and a shaping piece, the male die is arranged on the three-folding upper die, the bottom of the male die is provided with an arc-shaped abutting head, the three-folding upper die moves to the first position of the upper die to enable the abutting head of the male die to press a concave workpiece, the shaping piece is arranged on the three-folding lower die, and the three-folding lower die moves from the first position of the three-folding lower die to the second position of the three-folding lower die to enable the shaping piece to bend the workpiece.

Specifically, one side of the male die, which is close to the shaping piece, is provided with a shaping inclined surface, the shaping piece is provided with a shaping block matched with the shaping inclined surface, and the workpiece is pressed to the shaping inclined surface by the pressing of the shaping block by virtue of the three-folding lower die from the first position of the three-folding lower die to the second position of the three-folding lower die.

Compared with the prior art, the flexible circuit board automatic bending machine disclosed by the invention has the advantages that the feeding device, the overturning device, the first manipulator, the second manipulator, the carrier conveying device, the bending device, the two bending device, the three bending device, the blanking device and the like are combined together, and the feeding device is used for feeding a workpiece to be processed, so that the feeding of the workpiece is realized; the turnover device is used for turning over and positioning the position of the workpiece, so that the side, provided with the circuit board, of the workpiece is turned downwards and positioned, and subsequent positioning and bending processing are facilitated; the first manipulator is used for conveying the workpiece at the feeding device to the turnover device, so that the first manipulator is used for realizing butt joint between the feeding device and the turnover device; the second manipulator is used for transporting the workpiece at the turnover device to a feeding station of the carrier conveying device, so that the second manipulator is used for realizing butt joint between the turnover device and the feeding station; the carrier conveying device is arranged in a bending device, a two-fold bending device and a three-fold bending device in a penetrating mode, the carrier conveying device is used for conveying workpieces on a carrier to a feeding station, a bending station of the bending device, a two-fold station of the two-fold bending device, a three-fold station of the three-fold bending device and a discharging station in sequence, and a plurality of bending processes of primary bending, secondary bending, tertiary bending and the like of the workpieces are finished in a production line mode through the bending device, the two-fold bending device and the three-fold bending device; the blanking device is used for conveying the workpiece on the blanking station to the next station so as to complete blanking of the workpiece.

Drawings

Fig. 1 is a schematic perspective view of a workpiece before bending.

Fig. 2 is a schematic perspective view of the workpiece after the first bending.

Fig. 3 is a schematic perspective view of the workpiece after the second bending.

Fig. 4 is a schematic perspective view of the workpiece after the third bending.

Fig. 5 is a schematic perspective view of an automatic bending machine for flexible circuit boards according to the present invention.

Fig. 6 is a schematic plan view of the automatic bending machine for flexible circuit boards of the present invention in a top view.

Fig. 7 is a schematic perspective view of the turning device in the automatic bending machine for flexible circuit boards according to the present invention.

Fig. 8 is a schematic perspective view of a folding device in the automatic flexible circuit board bending machine according to the present invention.

Fig. 9 is a partial enlarged view at D in fig. 8.

Fig. 10 is a schematic perspective view of the folding device after hiding the folding frame, with the upper folding die in the initial position and the lower folding die in the first position.

Fig. 11 is a partial enlarged view at E in fig. 10.

Fig. 12 is a schematic perspective view of the folding device after hiding the folding frame, where the upper folding die is located at the first position of the upper folding die and the lower folding die is located at the first position of the lower folding die.

Fig. 13 is a partial enlarged view at F in fig. 12.

Fig. 14 is a schematic perspective view of the folding device after hiding the folding frame, where the upper folding die is located at the second position of the upper folding die and the lower folding die is located at the first position of the lower folding die.

Fig. 15 is a schematic perspective view of the folding and bending apparatus after hiding the folding frame body, where the folding upper die is located at the second position of the folding upper die and the folding lower die is located at the second position of the folding lower die.

Fig. 16 is a schematic perspective view of the folding device after the folding frame body is hidden, with the upper folding die in the initial position and the lower folding die in the first position.

Fig. 17 is a schematic perspective view of the two-folding device after the two-folding frame body is hidden, where the two-folding upper die is located at the first position of the two-folding upper die, and the two-folding lower die is located at the first position of the two-folding lower die.

Fig. 18 is a partial enlarged view at G in fig. 17.

Fig. 19 is a schematic perspective view of the two-folding device after the two-folding frame body is hidden, the two-folding upper die is located at the second position of the two-folding upper die, and the two-folding lower die is located at the first position of the two-folding lower die.

Fig. 20 is a partial enlarged view at H in fig. 19.

Fig. 21 is a schematic perspective view of the three-fold bending apparatus after the three-fold frame body is hidden, with the three-fold upper die at an initial position and the three-fold lower die at a first position of the three-fold lower die.

Fig. 22 is a schematic perspective view of the three-fold bending apparatus after the three-fold frame body is hidden, wherein the three-fold upper die is located at a first position of the three-fold upper die, and the three-fold lower die is located at a first position of the three-fold lower die.

Fig. 23 is a schematic perspective view of the three-fold bending apparatus after the three-fold frame body is hidden, wherein the three-fold upper die is located at a first position of the three-fold upper die, and the three-fold lower die is located at a second position of the three-fold lower die.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and accompanying drawings.

Referring to fig. 1 to 4, the present invention provides an automatic bending machine 200 for flexible circuit boards 100, which is used for multiple bending processing of the flexible circuit board 100, wherein the flexible circuit board 100, that is, the workpiece 100, includes a left circuit board 110, a left second elongated plate 120, a left first elongated plate 130, a connecting plate 140, a right first elongated plate 150, a right second elongated plate 160, and a right circuit board 170, which are connected in sequence, in a first bending process, the left second elongated plate 120 needs to be bent toward the left first elongated plate 130, the right second elongated plate 160 needs to be bent toward the right first elongated plate 150 (the bending direction of the first bending is shown by an arrow a in fig. 2), the bending angle is close to 180 degrees, and the bending positions between the left first elongated plate 130 and the left second elongated plate 120, and between the right first elongated plate 150 and the right second elongated plate 160 are arc-shaped, so as to avoid breaking; in the second bending step, the left circuit board 110 is bent toward the left second elongated plate 120, and the right circuit board 170 is bent toward the right second elongated plate 160 (the bending direction of the second bending is shown by arrow B in fig. 3); in the third bending step, the left first elongated plate 130 needs to be bent toward the connecting plate 140, the right first elongated plate 150 needs to be bent toward the connecting plate 140 (the bending direction of the third bending is shown by arrow C in fig. 4), and the bending positions between the left first elongated plate 130 and the connecting plate 140 and between the right first elongated plate 150 and the connecting plate 140 are arc-shaped, so as to avoid breakage.

Referring to fig. 5 to 6, the flexible circuit board automatic bending machine 200 according to the present invention includes a frame 1, a feeding device 2, a turning device 3, a first manipulator 4, a second manipulator 5, a carrier 10 for carrying a workpiece 100, a carrier conveying device 7, a bending device 8, and a bending device 9, the automatic feeding device comprises a three-folding bending device 6 and a blanking device 11, wherein a rack 1 is of a base structure with an electronic box, a feeding device 2, a turnover device 3, a first manipulator 4, a second manipulator 5, a carrier 10 for bearing a workpiece 100, a carrier conveying device 7, a folding bending device 8, a folding bending device 9, a three-folding bending device 6 and a blanking device 11 are all arranged on the rack 1, the feeding device 2 is used for feeding the workpiece 100 to be processed, and the feeding device 2 is located in front of the turnover device 3 so as to realize feeding of the workpiece 100; the turnover device 3 is used for turning over and positioning the position of the workpiece 100, so that the side, provided with the circuit board, of the workpiece 100 is turned downwards and positioned, and subsequent positioning and bending processing are facilitated; the first mechanical hand 4 is used for conveying the workpiece 100 at the feeding device 2 to the turnover device 3, the first mechanical hand 4 is located at one side of the feeding device 2 and the turnover device 3, and the first mechanical hand 4 is mounted on the rack 1 through a moving device (not shown), so that the first mechanical hand 4 is used for realizing the butt joint between the feeding device 2 and the turnover device 3; the carrier conveying device 7 is located behind the turnover device 3, the second manipulator 5 is located on one side of the carrier conveying device 7 and the turnover device 3, the second manipulator 5 is arranged adjacent to the first manipulator 4, the second manipulator 5 is used for conveying the workpiece 100 at the turnover device 3 to a feeding station of the carrier conveying device 7, and the second manipulator 5 is used for installing the rack 1 through a moving device, so that the second manipulator 5 is used for realizing butt joint between the turnover device 3 and the feeding station; the carrier conveying device 7 penetrates through the bending device 8, the bending device 9 and the three-folding bending device 6, the carrier conveying device 7 is arranged along the left and right directions of the rack 1 (the left and right directions are the directions indicated by an arrow X in figure 5, and the front and back directions are the directions indicated by an arrow Y in figure 5), the bending device 8, the bending device 9 and the three-folding bending device 6 are sequentially arranged along the transmission direction of the carrier conveying device 7, the carrier conveying device 7 is used for sequentially conveying the workpieces 100 on the carriers 10 to a feeding station, a bending station of the bending device 8, a bending station of the bending device 9, a three-folding station and a discharging station of the three-folding bending device 6, a plurality of bending processes of the workpiece 100, such as primary bending, secondary bending, tertiary bending and the like, are finished in a production line manner by using the bending device 8, the bending device 9 and the bending device 6; the blanking device 11 is located at the output end of the carrier conveying device 7, the blanking device 11 is used for conveying the workpiece 100 on the blanking station to the next station, so as to complete blanking of the workpiece 100, and in conclusion, the flexible circuit board automatic bending machine 200 of the invention can automatically complete multiple bending processes of the workpiece 100, and has the advantages of high automation degree, high product accuracy and the like. More specifically, the following:

referring to fig. 5 to 6, the feeding device 2 is an upper and lower layer feeding device 2, the feeding device 2 has a lifting device 21, and the jig 22 carrying the material to be processed is driven by the lifting device 21 to be separated from the upper and lower layer feeding device 2, so as to facilitate the material taking of the first manipulator 4. Referring to fig. 7, the flipping unit 3 includes a flipping unit 31, a moving frame 32, a rotating unit 33, and a rotating table 34, the flipping unit 31 is mounted on the frame 1, the moving frame 32 is mounted on an output end of the flipping unit 31, the moving frame 32 is driven by the flipping unit 31 to move along a front-back direction of the frame 1, the rotating unit 33 is mounted on the moving frame 32, the rotating table 34 is provided with a positioning hole 341 for positioning the workpiece 100, the workpiece 100 is positioned through the positioning hole 341, the rotating table 34 is mounted on an output end of the rotating unit 33, and the rotating table 34 is driven by the rotating unit 33 to rotate, so as to drive the workpiece 100 on the rotating table 34 to rotate 180 degrees, thereby positioning the circuit board on the workpiece 100 downward. Referring to fig. 5 to 6, the carrier transporting device 7 is an upper-layer transporting device and a lower-layer transporting device, the loading station is located at the input end of the upper-layer transporting member of the upper-layer transporting device, and the unloading station is located at the output end of the upper-layer transporting member of the upper-layer transporting device.

Referring to fig. 8 to 9, a folding and bending device 8 includes a folding frame 81, a folding upper mold moving driving device 82, a folding upper mold 83, a folding lower mold moving driving device 84, a folding lower mold 85, a folding positioning assembly 86, a flat needle assembly 87, a pushing member 810, a folding pressing assembly 89, a folding bending assembly 88 and a top block 811, the folding frame 81 is a layered frame structure, two sides of the folding frame 81 corresponding to a carrier 10 are provided with sliding grooves 81a, the carrier 10 is clamped on the folding frame 81 through the sliding grooves 81a, the carrier 10 is located between the folding upper mold 83 and the folding lower mold 85, after a workpiece 100 is processed, the carrier 10 can be moved back in the sliding grooves 81a to realize that the carrier 10 is rotated to a next station, the folding lower mold 85 is installed at an output end of the folding lower mold moving driving device 84, the folding lower mold 85 is driven by the folding lower mold moving driving device 84 to move, a lower folding die 85 is liftably mounted on a folding frame 81, the lower folding die 85 has an initial position, a first lower folding die position and a second lower folding die position with respect to the carrier 10 by being raised, the lower folding dies 85 at the initial position, the first lower folding die position and the second lower folding die position are arranged in sequence from bottom to top, an upper folding die 83 is mounted on an output end of an upper folding die moving driving device 82, the upper folding die 83 is lifted by being driven by the upper folding die moving driving device 82, the upper folding die 83 is liftably mounted on the folding frame 81, the upper folding die 83 has an initial position, a first upper folding die position and a second upper folding die position with respect to the carrier 10 by being lowered, the upper folding dies 83 at the initial position, the first upper folding die position and the second upper folding die position are arranged in sequence from top to bottom, so that a plurality of actions are realized by the lifting of the upper folding die 83, therefore, a plurality of processes are realized, the folding positioning assembly 86 is installed on the folding lower die 85, when the folding lower die 85 is located at the first position of the folding lower die, the folding positioning assembly 86 positions the workpiece 100 on the carrier 10, and the folding lower die 85 is moved from the initial position to the first position of the folding lower die so that the folding positioning assembly 86 extends to the workpiece 100 on the carrier 10, so that the workpiece 100 on the carrier 10 is positioned, and further, the workpiece 100 is positioned at one time; the flat needle assembly 87 is arranged on a folding lower die 85 in a sliding mode, the pushing piece 810 and a folding pressing assembly 89 are both arranged on a folding upper die 83, the pushing piece 810 and the flat needle assembly 87 are arranged oppositely along the up-down direction of a folding frame body 81, the flat needle 871 of the flat needle assembly 87 moves under the pushing of the pushing piece 810 and the folding pressing assembly 89 extends out by moving the folding upper die 83 from an initial position to a first position of the folding upper die, when the folding upper die 83 is located at the first position of the folding upper die, the flat needle 871 extends into the bending position of the workpiece 100 and the folding pressing assembly 89 presses the workpiece 100 on the carrier 10 tightly, the extending of the flat needle 871 can enable the bending position of the workpiece 100 to keep a circular arc shape after bending so as to avoid fracture, the pressing of the folding pressing assembly 89 can realize secondary positioning on the workpiece 100 on the carrier 10; the bending assembly 88 is mounted on a bending die 83, the bending assembly 88 comprises a bending driving assembly 881 and a bending gear 882, the bending gear 882 and the bending driving assembly 881 are located right above the flat needle 871, the bending gear 882 and the bending driving assembly 881 are moved from a first position of the bending die to a second position of the bending die by the aid of the bending die 83, and the bending gear 882 is driven by the bending driving assembly 881 to rotate so as to bend the workpiece 100 around the flat needle 871 (the bending direction is the direction indicated by an arrow I in fig. 13), and 180-degree bending of the workpiece 100 is realized by the rotation of the bending gear 882; the top block 811 is arranged on a lower folding die 85, the top block 811 is provided with a propping plane and the top block 811 is close to a folding gear 882, and the top block 811 is pressed to the bottom of the workpiece 100 for shaping when being positioned at a second position of the lower folding die, so that the two bending surfaces are attached to meet the production requirement. Preferably, the upper and lower folding die

moving drive units

82 and 84 are elevating units, but not limited thereto. In this embodiment, two workpieces 100 can be processed simultaneously, so that two sets of the folding positioning assembly 86, the flat needle assembly 87, the pushing member 810, the folding pressing assembly 89, the folding bending assembly 88 and the top block 811 are symmetrically arranged

Referring to fig. 10, a folding positioning assembly 86 includes a plurality of positioning jaws 861, the positioning jaws 861 are mounted on the folding lower mold 85 at intervals, for example, the positioning jaws 861 are composed of positioning posts located at two sides of the workpiece 100, the two positioning posts clamp the workpiece 100 together, so as to achieve positioning, the plurality of positioning jaws 861 are provided, and the plurality of positioning jaws 861 are arranged along the workpiece 100, so that a manufacturer can set the positions of the positioning jaws 861 as required, thereby achieving stable positioning.

Referring to fig. 9, the flat needle assembly 87 further includes a matching pushing piece 872, the matching pushing piece 872 is installed on the folding lower die 85, the flat needle 871 is installed on the matching pushing piece 872, the flat needle 871 is of a cylindrical needle body structure, the head of the flat needle 871 is a pointed end, the matching pushing piece 872 has a tendency of moving the flat needle 871 in a direction away from the workpiece 100, the pushing piece 810 has an inclined surface (not shown), the matching pushing piece 872 has a matching pushing inclined surface 8721 engaged with the inclined surface, the pushing piece 810 and the matching pushing piece 872 are disposed opposite to each other in the up-down direction of the folding frame 81, the flat needle 871 is moved by the matching pushing piece 872 through sliding engagement between the inclined surface and the matching pushing inclined surface 8721, that is when the folding upper die 83 moves from the initial position to the folding upper die first position, the matching pushing piece 872 moves under the pushing of the pushing piece 810, so as to drive the flat needle 871 to extend into the bending position of the workpiece 100, conversely, when the folding upper die 83 moves from the folding upper die first position to the folding, the pushing member 810 moves after the pushing of the pushing member 810 is lost, so that the flat needle 871 is driven to exit the bending part of the workpiece 100.

Referring to fig. 10 to 11, a folding and pressing assembly 89 includes an upper pressing block 891 for pressing the top end surface of the workpiece 100 and a side pressing block 892 for pressing the side surface of the workpiece 100, and the upper pressing block 891 and the side pressing block 892 are mounted on a folding upper die 83, so as to press the top end surface and the side surface of the workpiece 100. A pressing groove 8921 is formed in the side pressing block 892, the pressing groove 8921 has a left inclined surface 8922, a left vertical surface 8923, a horizontal surface 8924, a right vertical surface 8925 and a right inclined surface 8926 which are sequentially connected, the left inclined surface 8922 is formed by extending the bottom of the left vertical surface 8923 outwards, the right inclined surface 8926 is formed by extending the bottom of the right vertical surface 8925 outwards, the left inclined surface 8922, the left vertical surface 8923, the horizontal surface 8924, the right vertical surface 8925 and the right inclined surface 8926 together form a pressing groove with an expanded opening, which not only can press the left and right side surfaces of the workpiece 100, under the guidance of the left inclined plane 8922 and the right inclined plane 8926, the workpiece 100 is conveniently clamped in the clamping groove 8921, and during clamping, left vertical surface 8923 abuts the left side of workpiece 100, right vertical surface 8925 abuts the right side of workpiece 100, and upper press 891 abuts the top end of workpiece 100, thereby further providing secondary positioning of workpiece 100.

Referring to fig. 12 to 13, a bending driving assembly 881 includes a driving rack 8811, an elastic expansion block 8812 and an elastic member 8813, the driving rack 8811 is installed on a bending mold 83, the driving rack 8811 moves up and down along with the lifting of the bending mold 83, the bending mold 83 has a sliding slot 831 corresponding to the elastic expansion block 8812, the elastic expansion block 8812 is slidably installed in the sliding slot 831, the elastic member 8813 is elastically compressed between the bending mold 83 and the elastic expansion block 8812, so that the elastic expansion block 8812 has a tendency to extend out of the bending mold 83, so that the elastic expansion block 8812 is elastically installed on the bending mold 83, and the elastic expansion block 8812 can extend out or retract relative to the bending mold 83, a bending gear 882 is pivoted to the elastic expansion block 8812, the driving rack 8811 is engaged with the bending gear 882, the elastic expansion block 8812 is located right above the flat needle assembly 87 and the workpiece 100, in the process that the folding upper die 83 moves from the first position of the folding upper die to the second position of the folding upper die, the driving rack 8811, the elastic telescopic block 8812 and the folding gear 882 all descend synchronously, when the driving rack 8811, the elastic telescopic block 8812 and the folding gear 882 reach the workpiece 100, because the elastic telescopic block 8812 is located right above the flat needle assembly 87 and the workpiece 100, under the block of the folding positioning assembly 86 at the workpiece 100 and the workpiece 100, the elastic telescopic block 8812 can elastically stretch and contract, the elastic telescopic block 8812 stops descending, meanwhile, the driving rack 8811 continues descending, the folding gear 882 is meshed with the driving rack 8811, and the folding gear 882 rotates under the driving of the driving rack 8811, so that the workpiece 100 is rotatably bent 180 degrees around the flat needle 871 (the rotation direction is indicated by an arrow I in fig. 13). Specifically, the outer edge of the bending gear 882 has a meshing tooth 8821 meshed with the driving rack 8811, one side of the bending gear 882 is provided with a bending groove 8822, the cross section of the bending groove 8822 is circular-arc, the center of the bending groove 8822 is eccentrically arranged, the pivot point of the bending gear 882 and the elastic expansion block 8812 is spaced from the center of the bending groove 8822, the bending gear 882 rotates under the driving of the driving rack 8811, so that the bending groove 8822 rotates around the flat needle 871, and 180-degree bending of the workpiece 100 is realized.

Referring to fig. 14, the top block 811 is located at one side of the notch of the bending groove 8822, so that the two bending surfaces are attached to each other by the rising and abutting of the top block 811, thereby meeting the production requirement. Referring to fig. 8, the carrier 10 is respectively provided with a penetration hole 8121 for passing a folding positioning assembly 86, a flat needle assembly 87, a pushing member 810, a folding pressing assembly 89, a folding bending assembly 88 and a top block 811. After the bending is completed, the upper folding die 83 retracts to the initial position, the lower folding die 85 retracts to the initial position, and the components are reset.

Referring to fig. 5, 16 to 19, the two-folding bending device 9 includes a two-folding frame body 91, a two-folding upper mold moving driving device (not shown), a two-folding upper mold 93, a two-folding lower mold 94, a two-folding lower mold moving driving device 95, a two-folding positioning assembly 96, a forming table 97, a two-folding pressing assembly 98 and a two-folding bending assembly 99, the two-folding frame body 91 is a layered frame body structure, two sliding grooves (not shown) are formed on two sides of the two-folding frame body 91 corresponding to the carriers 10, the carriers 10 are clamped on the two-folding frame body 91 through the sliding grooves, the carriers 10 are located between the two-folding upper mold 93 and the two-folding lower mold 94, after the workpiece 100 is processed, the carriers 10 are released from the sliding grooves to be transferred to a next station, the two-folding lower mold 94 is mounted at an output end of the two-folding lower, the two-folding lower die 94 is arranged on the two-folding frame body 91 in a lifting manner, the two-folding lower die 94 has an initial position and a first position of the two-folding lower die relative to the carrier 10 by lifting, the two-folding lower die 94 at the initial position and the first position of the two-folding lower die are sequentially arranged from bottom to top, the two-folding upper die 93 is arranged at the output end of the two-folding upper die moving driving device and is driven by the two-folding upper die moving driving device to lift, the two-folding upper die 93 is arranged on the two-folding frame body 91 in a lifting manner, the two-folding upper die 93 has an initial position, a first position of the two-folding upper die and a second position of the two-folding upper die relative to the carrier 10 by lowering, the two-folding upper die 93 at the initial position, the first position of the two-folding upper die and, the two-fold positioning assembly 96 positions the workpiece 100 on the carrier 10, and the forming table 97 is borne under the workpiece 100, the two-fold lower die 94 is moved from the initial position to the first position of the two-fold lower die, so that the two-fold positioning assembly 96 extends to the workpiece 100 on the carrier 10, the workpiece 100 on the carrier 10 is positioned, and the workpiece 100 is positioned at one time, meanwhile, the forming table 97 extends to the lower part of the bending part of the workpiece 100, and the workpiece 100 is borne on the forming table 97; the two-folding pressing assembly 98 is mounted on the two-folding upper die 93, when the two-folding upper die 93 is located at the first position of the two-folding upper die, the two-folding pressing assembly 98 presses the workpiece 100 on the carrier 10, and the pressing of the two-folding pressing assembly 98 can realize secondary positioning on the workpiece 100 on the carrier 10, so that the accuracy of subsequent bending is ensured; the forming table 97 extends to form a circular arc-shaped protruding structure 971 towards the workpiece 100, the folding assembly 99 is installed on the folding upper die 93, the folding assembly 99 comprises a folding driving assembly 991 and a folding gear 992, the folding upper die 93 moves from a first position of the folding upper die to a second position of the folding upper die, the folding gear 992 rotates under the driving of the folding driving assembly 991 so that the workpiece 100 is bent around the protruding structure 971 (the bending direction is the direction indicated by an arrow J in fig. 20), and the workpiece 100 is bent by 90 degrees by the rotation of the folding gear 992. Preferably, the two-fold upper die moving drive device and the two-fold lower die moving drive device 95 are elevating devices, but not limited thereto. In this embodiment, two workpieces 100 can be processed simultaneously, so that two groups of the two-folding positioning assembly 96, the forming table 97, the two-folding pressing assembly 98 and the two-folding bending assembly 99 are symmetrically arranged.

Referring to fig. 16 to 18, the two-fold positioning assembly 96 includes a plurality of positioning jaws 961, the positioning jaws 961 are mounted on the two-fold lower mold 94 at intervals, for example, the positioning jaws 961 are composed of positioning columns located at two sides of the workpiece 100, the two positioning columns clamp the workpiece 100 together to achieve positioning, the plurality of positioning jaws 961 are provided, and the plurality of positioning jaws 961 are arranged along the arrangement of the workpiece 100, so that a manufacturer can set the positions of the positioning jaws 961 as required to achieve stable positioning.

Referring to fig. 17 to 18, the two-fold pressing assembly 98 includes an upper pressing block 981 for pressing the top end surface of the workpiece 100 and a side pressing block 982 for pressing the side surface of the workpiece 100, and the upper pressing block 981 and the side pressing block 982 are mounted on the two-fold upper die 93, so as to press the top end surface and the side surface of the workpiece 100. The side pressing block 982 is internally provided with a pressing groove 9821, the pressing groove 9821 is provided with a left inclined surface 9822, a left vertical surface 9823, a horizontal surface 9824, a right vertical surface 9825 and a right inclined surface 9826 which are connected in sequence, the left inclined surface 9822 is formed by extending the bottom of the left vertical surface 9823 outwards, the right inclined surface 9826 is formed by extending the bottom of the right vertical surface 9825 outwards, the left inclined surface 9822, the left vertical surface 9823, the horizontal surface 9824, the right vertical surface 9825 and the right inclined surface 9826 form a pressing groove with an opening in an expansion shape together, so that the left side face and the right side face of the workpiece 100 can be pressed, and under the guidance of the left inclined surface 9822 and the right inclined surface 9826, the workpiece 100 can be conveniently clamped into the pressing groove 9821, and during clamping, the left vertical surface 9823 abuts against the left side surface of the workpiece 100, the right vertical surface 9825 abuts against the right side surface of the workpiece 100, and the upper pressing block 981 abuts against the top end surface of the workpiece 100, so that secondary positioning is further performed on the workpiece 100.

Referring to fig. 19 to 20, the two-fold bending driving assembly 991 includes a driving rack 9911, an elastic expansion block 9912 and an elastic member (not shown), the driving rack 9911 is mounted on the two-fold upper mold 93, the driving rack 9911 is lifted along with the lifting of the two-fold upper mold 93, the two-fold upper mold 93 is provided with a sliding slot 831 corresponding to the elastic expansion block 9912, the elastic expansion block 9912 is slidably disposed in the sliding slot 831, the elastic member 8813 is elastically compressed between the two-fold upper mold 93 and the elastic expansion block 9912, so that the elastic expansion block 9912 has a tendency to extend out of the two-fold upper mold 93, the elastic expansion block 9912 is elastically mounted on the two-fold upper mold 93, the elastic expansion block 9912 can extend out or retract relative to the two-fold upper mold 93, the two-fold bending gear 992 is pivotally connected to the elastic expansion block 9912, the driving rack 9911 is engaged with the two-fold bending gear 992, the elastic expansion block, in the process that the two-fold upper die 93 moves from the first position of the two-fold upper die to the second position of the two-fold upper die, the driving rack 9911, the elastic expansion block 9912 and the two-fold bending gear 992 all descend synchronously, when the driving rack 9911, the elastic expansion block 9912 and the two-fold bending gear 992 reach the workpiece 100, because the elastic expansion block 9912 is located right above the workpiece 100, under the blocking of the workpiece 100 and the forming table 97 at the workpiece 100, the elastic expansion block 9912 can elastically expand and contract, the elastic expansion block 9912 stops descending, and meanwhile, the driving rack 9911 continues descending, the two-fold bending gear 992 is meshed with the driving rack 9911, and the two-fold bending gear 992 rotates under the driving of the driving rack 9911, so that the workpiece 100 is rotationally bent by 90 degrees around the protruding structure 971 of the forming table 97 (the rotation direction is the direction indicated by an arrow J in fig. 20). Specifically, the outer edge of the two-fold bending gear 992 is provided with an engaging tooth 9921 engaged with the driving rack 9911, one side of the two-fold bending gear 992 is provided with an avoiding groove 9922 avoiding a left first long plate or a right second long plate of the workpiece 100, the cross section of the avoiding groove 9922 is arc-shaped, the pivot point of the two-fold bending gear 992 and the elastic expansion block 9912 is located at the center of a circle, and the two-fold bending gear 992 is driven by the driving rack 9911 to rotate, so that the pressing portion 9923 formed at one side of the two-fold bending gear 992 presses the circuit board portion of the workpiece 100 to rotate around the protruding structure 971 of the forming table 97, and 90-degree bending of the circuit board of the workpiece 100 is achieved. Preferably, the pressing portion 9923 formed by bending one side of the gear 992 in two folds is provided with a rubber column 993, and the arrangement of the rubber column 993 can effectively avoid the circuit board from being damaged due to overlarge pressure.

Referring to fig. 5 and 21 to 23, the three-fold bending device 6 includes a three-fold frame body 61, a three-fold upper die moving driving device (not shown), a three-fold upper die 63, a three-fold lower die 64, a three-fold lower die moving driving device 65, a three-fold positioning assembly 66 and a three-fold bending assembly 67, the carrier 10 is clamped on the three-fold frame body 61 under the conveying of the carrier conveying device 7 and is located between the three-fold upper die 63 and the three-fold lower die 64, the three-fold lower die 64 is liftably mounted on the three-fold frame body 61 through the three-fold lower die moving driving device 65, the three-fold lower die 64 has a first position of the three-fold lower die and a second position of the three-fold lower die relative to the carrier 10 by being lifted up, the three-fold upper die 63 is liftably mounted on the three-fold frame body 61 through the three-fold upper die moving driving device, the three-fold upper die 63 has a first position of the three-, the triple-folding positioning assembly 66 positions the workpiece 100 on the carrier 10; the three-folding bending assembly 67 comprises a convex die 671 and a shaping piece 672, the convex die 671 is mounted on the three-folding upper die 63, the bottom of the convex die 671 is provided with an arc-shaped abutting head 6711, the abutting 6711 of the convex die 671 is enabled to press the workpiece 100 downwards by moving the three-folding upper die 63 to the first position of the upper die, the shaping piece 672 is mounted on the three-folding lower die 64, and the shaping piece 672 is enabled to bend the workpiece 100 by moving the three-folding lower die 64 from the first position of the three-folding lower die to the second position of the three-folding lower die.

Referring to fig. 21 to 23, the triple-folding positioning assembly 66 includes a plurality of positioning jaws 661, the positioning jaws 661 are mounted on the triple-folding lower die 64 at intervals, for example, the positioning jaws 661 are composed of positioning posts located at two sides of the workpiece 100, the two positioning posts clamp the workpiece 100 together to achieve positioning, the plurality of positioning jaws 661 are provided, and the plurality of positioning jaws 661 are arranged along the workpiece 100, so that a manufacturer can set the positions of the positioning jaws 661 as required to achieve stable positioning.

Referring to fig. 21 to 23, a shaping slope 6712 is formed on a side of the male die 671 close to the shaping piece 672, the shaping piece 672 has a shaping block 6721 matching with the shaping slope 6712, and the workpiece 100 is pressed against the shaping block 6721 to the shaping slope 6712 by moving the tri-fold lower die 64 from the first position of the tri-fold lower die to the second position of the tri-fold lower die, preferably, the cross section of the shaping block 6721 is a right trapezoid.

Referring to the drawings, the blanking device 11 includes a tray conveying device 111, a tray 112, a third manipulator 113 and a fourth manipulator 114, the third manipulator 113 is used for conveying the workpieces 100 at the blanking station to the tray 112 of the tray conveying device 111, the tray conveying device 111 conveys the tray 112 with the input end fully loaded to the output end of the tray conveying device 111, and the fourth manipulator 114 is used for conveying the tray 112 fully loaded to the next station.

Referring to fig. 5 to 23, the operation principle of the automatic bending machine 200 for flexible circuit boards of the present invention is further explained:

the loading device 2 loads a workpiece 100 to be processed, the turnover device 3 carries out turnover positioning on the position of the workpiece 100, the first mechanical hand 4 carries the workpiece 100 at the loading device 2 to the turnover device 3, the turnover device 3 turns the workpiece 100 for 180 degrees, the second mechanical hand 5 carries the workpiece 100 at the turnover device 3 to a loading station of the carrier conveying device 7, the carrier conveying device 7 sequentially carries the workpiece 100 on the carrier 10 to the loading station, a folding station of the folding device 8 and a folding station of the folding device 9, a three-folding station and a blanking station of the three-folding bending device 6 are used for completing a plurality of bending processes of the workpiece 100, such as primary bending, secondary bending, tertiary bending and the like, in a production line manner by utilizing the folding bending device 8, the folding bending device 9 and the three-folding bending device 6, and the blanking device 11 is used for conveying the workpiece 100 on the blanking station to the next station;

the working principle of the bending device 8 is further explained:

the carrier 10 carries a workpiece 100, the carrier 10 flows to a position between the upper folding die 83 and the lower folding die 85, the lower folding die 85 rises to a first position of the lower folding die from an initial position, and the plurality of positioning clamping jaws 661 are driven by the lower folding die 85 to extend to the workpiece 100 on the carrier 10, so that the workpiece 100 on the carrier 10 is positioned, and further, the workpiece 100 is positioned once;

referring to fig. 8 to 15, an upper folding die 83 descends from an initial position to a first position of the upper folding die, so as to drive a pushing member 810 and a pressing member 89 to descend, the pushing member 872 always has a tendency of moving the flat needle 871 in a direction away from the workpiece 100, the pushing member 872 moves under the pushing of the pushing member 810 so as to drive the flat needle 871 to extend into a bending position of the workpiece 100, during clamping, the pressing member 89 descends to make the left vertical surface 8923 tightly attached to the left side surface of the workpiece 100, the right vertical surface 8925 tightly attached to the right side surface of the workpiece 100, and the upper pressing block 891 tightly attached to the top end surface of the workpiece 100, so as to further position the workpiece 100 for the second time;

the folding upper die 83 moves from the first position of the folding upper die to the second position of the folding upper die, the driving rack 8811, the elastic expansion block 8812 and the folding gear 882 all descend synchronously, when the driving rack 8811, the elastic expansion block 8812 and the folding gear 882 reach the workpiece 100, because the elastic expansion block 8812 is positioned right above the flat needle assembly 87 and the workpiece 100, under the blockage of the folding positioning assembly 86 at the workpiece 100 and the workpiece 100, the elastic expansion block 8812 can elastically expand and contract, the elastic expansion block 8812 stops descending, meanwhile, the driving rack 8811 continues descending, the folding gear 882 is meshed with the driving rack 8811, the folding gear 882 rotates under the driving of the driving rack 8811, so that the workpiece 100 is rotatably bent for 180 degrees around the flat needle 871, so that the folding groove 8822 rotates around the flat needle 871, and 180-degree bending of the workpiece 100 is realized, namely, the second long plate is bent towards the first long plate;

the top block 811 is located on one side of the notch of the bending groove 8822, so that two bending surfaces are attached through the rising and the abutting of the top block 811, namely, the second long plate is attached to the first long plate after being bent, after the bending is completed, the upper bending die 83 returns to the initial position, the lower bending die 85 returns to the initial position, and all the parts are reset.

Referring to fig. 16 to 20, the operation of the folding device 9 will be further explained:

the carrier 10 carries a workpiece 100, the carrier 10 flows to a position between the two-fold upper die 93 and the two-fold lower die 94, the two-fold lower die 94 is lifted to a first position of the two-fold lower die from an initial position, and the plurality of positioning clamping jaws 961 are driven by the two-fold lower die 94 to extend to the workpiece 100 on the carrier 10, so that the workpiece 100 on the carrier 10 is positioned, and further, the workpiece 100 is positioned once, and in addition, the forming table 97 is carried below the workpiece 100;

the two-folding upper die 93 descends from the initial position to the first position of the two-folding upper die, so that the two-folding pressing component 98 is driven to descend, the two-folding pressing component 98 presses the workpiece 100 on the carrier 10, and the pressing of the two-folding pressing component 98 can realize secondary positioning on the workpiece 100 on the carrier 10;

the two-folding upper die 93 moves from the first position of the two-folding upper die to the second position of the two-folding upper die, the two-folding gear 992 is driven by the two-folding driving assembly 991 to rotate so as to bend the workpiece 100 into the protruding structure 971 of the forming table 97 (the bending direction is the direction indicated by the arrow J in fig. 20), after the bending is completed, the two-folding upper die 93 returns to the initial position, the two-folding lower die 94 returns to the initial position, and each part resets.

Referring to fig. 21 to 23, the operation of the tri-folding device 6 will be further explained:

the carrier 10 bears the workpiece 100, the carrier 10 rotates to a position between the three-fold upper die 63 and the three-fold lower die 64, the three-fold lower die 64 rises to a first position of the three-fold lower die from an initial position, and the plurality of positioning clamping jaws 661 are driven by the three-fold lower die 64 to extend to the workpiece 100 on the carrier 10, so that the workpiece 100 on the carrier 10 is positioned, and the workpiece 100 is positioned once;

the three-fold upper die 63 descends from the initial position to the first position of the three-fold upper die, so that the pressing head 6711 of the male die 671 is driven to descend, and the pressing head 6711 of the male die 671 is pressed downwards to the concave workpiece 100 by moving the three-fold upper die 63 to the first position of the upper die; the shaping piece 672 is mounted on the three-fold lower die 64, and the three-fold lower die 64 is moved from the first position to the second position thereof so that the workpiece 100 is pressed against the shaping slope 6712 by the pressing force of the shaping block 6721, thereby realizing the bending. After the bending is completed, the three-folding upper die 63 returns to the initial position, the three-folding lower die 64 returns to the initial position, and all the components are reset.

The loading device 2 is used for loading a workpiece 100 to be processed, so that the workpiece 100 is loaded, because the loading device 2, the turnover device 3, the first manipulator 4, the second manipulator 5, the carrier 10, the carrier conveying device 7, the folding and bending device 8, the folding and bending device 9, the folding and bending device 6, the unloading device 11 and the like are combined together; the turnover device 3 is used for turning over and positioning the position of the workpiece 100, so that the side, provided with the circuit board, of the workpiece 100 is turned downwards and positioned, and subsequent positioning and bending processing are facilitated; the first manipulator 4 is used for conveying the workpiece 100 at the loading device 2 to the turnover device 3, so that the first manipulator 4 is used for realizing butt joint between the loading device 2 and the turnover device 3; the second manipulator 5 is used for transporting the workpiece 100 at the turnover device 3 to the loading station of the carrier conveying device 7, so that the second manipulator 5 is used for realizing butt joint between the turnover device 3 and the loading station; the carrier conveying device 7 penetrates through the folding and bending device 8, the two-folding and bending device 9 and the three-folding and bending device 6, the carrier conveying device 7 is used for sequentially conveying the workpiece 100 on the carrier 10 to a feeding station, a folding station of the folding and bending device 8, a two-folding station of the folding and bending device 9, a three-folding station and a discharging station of the three-folding and bending device 6, and a plurality of bending processes of the workpiece 100, such as primary bending, secondary bending, tertiary bending and the like, are finished in a production line mode by using the folding and bending device 8, the two-folding and bending device 9 and the three-folding and bending device 6; the blanking device 11 is used for transporting the workpiece 100 on the blanking station to the next station, so as to complete blanking of the workpiece 100, and in conclusion, the flexible circuit board automatic bending machine 200 of the present invention can automatically complete multiple bending processes of the workpiece 100, and has the advantages of high automation degree, high product accuracy, etc.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

Claims

1. The automatic flexible circuit board bending machine is characterized by comprising a rack, a feeding device, a turnover device, a first mechanical arm, a second mechanical arm, a carrier for bearing a workpiece, a carrier conveying device, a folding device, a three-folding device and a discharging device are mounted on the rack, the feeding device is used for feeding the workpiece to be processed, the turnover device is used for overturning and positioning the position of the workpiece, the first mechanical arm is used for conveying the workpiece at the feeding device to the turnover device, the second mechanical arm is used for conveying the workpiece at the turnover device to the feeding station of the carrier conveying device, the carrier conveying device penetrates through the folding device, the two-folding device and the three-folding device, and the carrier conveying device is used for conveying the workpiece on the carrier to the feeding station in sequence, The blanking device comprises a folding station of the folding device, a three-folding station of the three-folding device and a blanking station, wherein the blanking device is used for conveying workpieces on the blanking station to the next station.

2. The automatic bending machine for flexible circuit boards as claimed in claim 1, wherein the folding and bending device comprises a folding frame body, a folding upper die, a folding lower die, a folding positioning assembly, a flat needle assembly, a pushing member, a folding pressing assembly, a folding bending assembly and a top block, the carrier is clamped on the folding frame body under the conveying of the carrier conveying device and is located between the folding upper die and the folding lower die, the folding lower die is liftably mounted on the folding frame body, the folding lower die has a first folding lower die position and a second folding lower die position relative to the carrier through rising, the folding upper die is liftably mounted on the folding frame body, the folding upper die has a first folding upper die position and a second folding upper die position relative to the carrier through falling, the folding positioning assembly is mounted on the folding lower die, when the lower folding die is located at the first position of the lower folding die, the workpiece on the carrier is positioned by the lower folding positioning assembly; the flat needle assembly is arranged on the lower folding die in a sliding mode, the pushing piece and the compressing assembly are both arranged on the upper folding die, the flat needle of the flat needle assembly moves under the pushing of the pushing piece, and when the upper folding die is located at the first position of the upper folding die, the flat needle extends into the bending position of a workpiece and the compressing assembly compresses the workpiece on the carrier; the bending component is arranged on the bending upper die and comprises a bending driving component and a bending gear, the bending upper die moves from a first position of the bending upper die to a second position of the bending upper die, and the bending gear rotates under the driving of the bending driving component to bend a workpiece around the flat needle; the top block is arranged on the lower folding die, and the top block presses the bottom of the workpiece to be shaped when being located at the second position of the lower folding die.

3. The automatic bending machine for flexible circuit boards according to claim 2, wherein the flat pin assembly further comprises a matching pushing piece, the matching pushing piece is mounted on the lower folding die, the flat pin is mounted on the matching pushing piece, the pushing piece is provided with an inclined surface, the matching pushing piece is provided with a matching pushing inclined surface matched with the inclined surface, and the flat pin is driven by the matching pushing piece to move due to sliding fit between the inclined surface and the matching pushing inclined surface.

4. The automatic flexible circuit board bending machine according to claim 2, wherein the folding driving assembly comprises a driving rack and an elastic telescopic block, the driving rack is mounted on the folding upper die, the elastic telescopic block is elastically mounted on the folding upper die, the elastic telescopic block can extend or retract relative to the folding upper die, the folding gear is pivoted to the elastic telescopic block, and the driving rack is meshed with the folding gear.

5. The automatic bending machine for flexible circuit boards according to claim 4, wherein the bending drive assembly further comprises an elastic member, the upper bending die is provided with a sliding groove corresponding to the elastic expansion block, the elastic expansion block is slidably arranged in the sliding groove, and the elastic member is elastically compressed between the upper bending die and the elastic expansion block, so that the elastic expansion block has a constant tendency to extend out of the upper bending die.

6. The automatic bending machine for flexible circuit boards according to claim 4, wherein the outer edge of the bending gear is provided with meshing teeth meshed with the driving rack, one side of the bending gear is provided with a bending groove, the cross section of the bending groove is arc-shaped, the center of the bending groove is eccentrically arranged, the pivot point of the bending gear and the elastic expansion block is eccentrically arranged, and the pivot point of the bending gear and the elastic expansion block is spaced from the center of the bending groove.

7. The automatic bending machine for flexible circuit boards according to claim 1, wherein the two-fold bending device comprises a two-fold frame body, a two-fold upper die, a two-fold lower die, a two-fold positioning assembly, a forming table, a two-fold pressing assembly and a two-fold bending assembly, the carrier is clamped on the two-fold frame body under the conveying of the carrier conveying device and is located between the two-fold upper die and the two-fold lower die, the two-fold lower die is liftably mounted on the two-fold frame body, the two-fold lower die has a first two-fold lower die position relative to the carrier by lifting, the two-fold upper die is liftably mounted on the two-fold frame body, the two-fold upper die has a first two-fold upper die position and a second two-fold upper die position relative to the carrier by lowering, the two-fold positioning assembly and the forming, the two-fold positioning assembly positions the workpiece on the carrier, and the forming table is borne below the workpiece; the two-folding compressing assembly is arranged on the two-folding upper die, and when the two-folding upper die is located at a first position of the two-folding upper die, the two-folding compressing assembly compresses the workpiece on the carrier; the forming table extends to the workpiece to form a circular-arc protruding structure, the two-fold bending assembly is installed on the two-fold upper die and comprises a two-fold bending driving assembly and a two-fold bending gear, the two-fold upper die moves from a first position of the two-fold upper die to a second position of the two-fold upper die, and the two-fold bending gear rotates under the driving of the two-fold bending driving assembly to enable the workpiece to be bent around the protruding structure.

8. The automatic flexible circuit board bending machine according to claim 7, wherein the two-fold bending driving assembly comprises a driving rack and an elastic expansion block, the driving rack is mounted on the two-fold upper die, the elastic expansion block is elastically mounted on the two-fold upper die and can extend or retract relative to the two-fold upper die, the two-fold bending gear is pivoted to the elastic expansion block, and the driving rack is meshed with the two-fold bending gear.

9. The automatic bending machine for flexible circuit boards according to claim 1, wherein the three-folding bending device comprises a three-folding frame body, a three-folding upper die, a three-folding lower die, a three-folding positioning assembly and a three-folding bending assembly, the carrier is clamped on the three-folding frame body under the conveying of the carrier conveying device and is located between the three-folding upper die and the three-folding lower die, the three-folding lower die is arranged on the three-folding frame body in a lifting manner, the three-folding lower die has a first position of the three-folding lower die and a second position of the three-folding lower die relative to the carrier through lifting, the three-folding upper die is arranged on the three-folding frame body in a lifting manner, the three-folding upper die has a first position of the three-folding upper die relative to the carrier through lowering, the three-folding positioning assembly is arranged on the three-folding lower die, and the three-; the three-folding bending assembly comprises a male die and a shaping piece, the male die is installed on the three-folding upper die, a pressing head which is arc-shaped is arranged at the bottom of the male die, the three-folding upper die moves to the first position of the upper die to enable the pressing head of the male die to be concave, the shaping piece is installed on the three-folding lower die, and the three-folding lower die is moved to the second position of the three-folding lower die through the first position of the three-folding lower die to enable the shaping piece to be bent to the workpiece.

10. The automatic bending machine for flexible circuit boards according to claim 9, wherein a side of the male die close to the shaping piece is provided with a shaping slope, the shaping piece is provided with a shaping block in cooperation with the shaping slope, and the movement of the three-folding lower die from the first position of the three-folding lower die to the second position of the three-folding lower die causes the workpiece to be pressed against the shaping slope by the pressing of the shaping block.