CN110918726A - Bending device - Google Patents

Bending device Download PDF

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Publication number
CN110918726A
CN110918726A CN201911424496.4A CN201911424496A CN110918726A CN 110918726 A CN110918726 A CN 110918726A CN 201911424496 A CN201911424496 A CN 201911424496A CN 110918726 A CN110918726 A CN 110918726A
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CN
China
Prior art keywords
bending
upper die
assembly
workpiece
lower die
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Pending
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CN201911424496.4A
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Chinese (zh)
Inventor
吴海洋
申宇
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World Precision Manufacturing Dongguan Co Ltd
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World Precision Manufacturing Dongguan Co Ltd
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Application filed by World Precision Manufacturing Dongguan Co Ltd filed Critical World Precision Manufacturing Dongguan Co Ltd
Priority to CN201911424496.4A priority Critical patent/CN110918726A/en
Publication of CN110918726A publication Critical patent/CN110918726A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10Bending specially adapted to produce specific articles, e.g. leaf springs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The bending device comprises a rack, an upper die, a lower die, a positioning assembly, a flat needle assembly, a pushing piece, a pressing assembly, a bending assembly, a jacking block and a carrier, wherein the lower die is provided with a first lower die position and a second lower die position relative to the carrier by rising, the upper die is arranged on the rack in a lifting manner, the upper die is provided with a first upper die position and a second upper die position relative to the carrier by falling, and the positioning assembly is arranged on the lower die; the flat needle assembly is arranged on the lower die in a sliding mode, the pushing piece and the pressing assembly are both arranged on the upper die, the flat needle of the flat needle assembly moves under the pushing of the pushing piece, and when the upper die is located at the first position of the upper die, the flat needle extends into the bending position of the workpiece and the pressing assembly presses the workpiece on the carrier; the bending assembly is arranged on the upper die and comprises a bending driving assembly and a bending gear; the ejector block is arranged on the lower die. The bending device can automatically bend the workpiece by 180 degrees, and has the advantages of high automation degree, high product accuracy and the like.

Description

Bending device
Technical Field
The invention relates to the field of electronic component processing, in particular to a bending device.
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 FPC flexible flat cable, the FPC flexible flat cable needs to be bent by 180 degrees, please refer to fig. 1 to 2 of the specification, the FPC flexible flat cable 200 includes a first elongated plate 210, a second elongated plate 220 and an arc bending portion 230, the arc bending portion 230 is located between the first elongated plate 210 and the second elongated plate 220, in the actual processing, the second elongated plate 220 needs to be bent toward the first elongated plate 210, and the first elongated plate 210 and the second elongated plate 220 are attached to each other after being bent, so as to avoid the breakage of the bending position between the first elongated plate 210 and the second elongated plate 220, the arc bending portion 230 needs to be bent into an arc shape, however, the conventional bending device is difficult to automatically complete the above bending process, and thus the conventional production requirements cannot be met.
Therefore, a bending apparatus is urgently needed.
Disclosure of Invention
The invention aims to provide a bending device which can automatically bend a workpiece by 180 degrees and has the advantages of high automation degree, high product accuracy and the like.
In order to achieve the purpose, the invention discloses a bending device which comprises a rack, an upper die, a lower die, a positioning assembly, a flat needle assembly, a pushing piece, a pressing assembly, a bending assembly, a top block and a carrier for placing a workpiece, wherein the carrier is clamped on the rack and positioned between the upper die and the lower die, the lower die is arranged on the rack in a lifting manner, the lower die has a first lower die position and a second lower die position relative to the carrier through lifting, the upper die is arranged on the rack in a lifting manner, the upper die has a first upper die position and a second upper die position relative to the carrier through descending, the positioning assembly is arranged on the lower die, and when the lower die is positioned at the first lower die position, the positioning assembly positions the workpiece on the carrier; the flat needle assembly is arranged on the lower die in a sliding mode, the pushing piece and the pressing assembly are both arranged on the upper die, the flat needle of the flat needle assembly moves under the pushing of the pushing piece, and when the upper die is located at the first position of the upper die, the flat needle extends into the bending position of a workpiece and the pressing assembly presses the workpiece on the carrier; the bending assembly is arranged on the upper die and comprises a bending driving assembly and a bending gear, the bending gear is driven by the bending driving assembly to rotate so as to bend the workpiece around the flat needle by moving the upper die from a first position of the upper die to a second position of the upper die; the ejector block is arranged on the lower die, and the ejector block presses the bottom of the workpiece to be shaped when being located at the second position of the lower die.
Preferably, the positioning assembly comprises a plurality of positioning jaws mounted to the lower die at spaced intervals.
Preferably, the flat needle assembly further includes a matching pushing part, the matching pushing part is mounted on the lower die, the flat needle is mounted on the matching pushing part, the pushing part has an inclined surface, the matching pushing part has a matching pushing inclined surface matched with the inclined surface, and the flat needle is driven by the matching pushing part to move by virtue of sliding fit between the inclined surface and the matching pushing inclined surface.
Preferably, the pressing assembly comprises an upper pressing block for pressing the top end face of the workpiece and a side pressing block for pressing the side face of the workpiece, and the upper pressing block and the side pressing block are mounted on the upper die.
Specifically, the side pressure blocks are internally provided with pressing grooves, the pressing grooves are provided with a left inclined plane, a left vertical plane, a horizontal plane, a right vertical plane and a right inclined plane which are sequentially connected, the left inclined plane is formed by outwards extending the bottom of the left vertical plane, and the right inclined plane is formed by outwards extending the bottom of the right vertical plane.
Preferably, the bending driving assembly comprises a driving rack and an elastic telescopic block, the driving rack is mounted on the upper die, the elastic telescopic block is elastically mounted on the upper die and can extend or retract relative to the upper die, the bending gear is pivoted to the elastic telescopic block, and the driving rack is meshed with the bending gear.
Specifically, the drive assembly that bends still includes the elastic component, go up the mould and correspond the sliding tray has been seted up to the flexible piece of elasticity, the flexible piece of elasticity is slided and is located the sliding tray, the elastic component is elastic compression ground and locates go up the mould with between the flexible piece of elasticity, so that flexible piece of elasticity has constantly and stretches out go up the trend of mould.
Specifically, 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 circle center of the bending groove is eccentrically arranged, the pin joint point of the bending gear and the elastic telescopic block is eccentrically arranged, and the pin joint point of the bending gear and the elastic telescopic block and the circle center of the bending groove are arranged at intervals.
Specifically, the top block is located on one side of a notch of the bending groove.
Preferably, the carrier is respectively provided with a through hole for the positioning assembly, the flat needle assembly, the pushing member, the pressing assembly, the bending assembly and the jacking block to pass through.
Compared with the prior art, the bending device disclosed by the invention has the advantages that the upper die, the lower die, the positioning assembly, the flat needle assembly, the pushing piece, the pressing assembly, the bending assembly, the ejector block and the like are combined together, the lower die is arranged on the rack in a liftable manner, the lower die is provided with a first lower die position and a second lower die position relative to the carrier by rising, the upper die is arranged on the rack in a liftable manner, the upper die is provided with a first upper die position and a second upper die position relative to the carrier by falling, so that a plurality of actions are realized by utilizing the lifting of the upper die and the lifting of the lower die, so that a plurality of processes are realized, the positioning assembly is arranged on the lower die, when the lower die is positioned at the first lower die position, the positioning assembly positions a workpiece on the carrier, and the positioning assembly positions the workpiece; the flat needle assembly is arranged on the lower die in a sliding mode, the pushing piece and the pressing assembly are both arranged on the upper die, the flat needle of the flat needle assembly is pushed by the pushing piece to move and the pressing assembly extends out by means of the fact that the upper die moves from the initial position to the first position of the upper die, when the upper die is located at the first position of the upper die, the flat needle extends into a bending position of a workpiece and the pressing assembly presses the workpiece on the carrier, the bending position of the workpiece can be kept in an arc shape after being bent by the aid of the extension of the flat needle so as to avoid breakage, and the workpiece on the carrier can; the bending assembly is arranged on the upper die and comprises a bending driving assembly and a bending gear, the bending gear rotates under the driving of the bending driving assembly by moving the upper die from the first position of the upper die to the second position of the upper die, so that the workpiece is bent around the flat needle, and the 180-degree bending of the workpiece is realized by the rotation of the bending gear; in conclusion, the bending device can automatically complete 180-degree bending of the workpiece and enable the two bent surfaces to be attached, and has the advantages of high automation degree, high product accuracy and the like.
Drawings
Fig. 1 is a schematic perspective view of a bending piece before bending.
Fig. 2 is a schematic perspective view of a bent piece after bending.
Fig. 3 is a schematic perspective view of the bending apparatus of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic perspective view of the bending apparatus of the present invention after the frame and the carrier are hidden, with the upper mold in the initial position and the lower mold in the first position.
Fig. 6 is a partially enlarged view at B in fig. 5.
Fig. 7 is a schematic perspective view of the bending apparatus of the present invention after the frame and the carrier are hidden, with the upper mold in the first position of the upper mold and the lower mold in the first position of the lower mold.
Fig. 8 is a partial enlarged view at C in fig. 7.
Fig. 9 is a schematic perspective view of the bending apparatus of the present invention after the frame and the carrier are hidden, with the upper mold in the second position of the upper mold and the lower mold in the first position of the lower mold.
Fig. 10 is a schematic perspective view of the bending apparatus of the present invention after the frame and the carrier are hidden, with the upper mold in the second position of the upper mold and the lower mold in the second position of the lower mold.
Detailed Description
In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.
Referring to fig. 1 to 2 of the specification, a workpiece 200 includes a first elongated plate 210, a second elongated plate 220, and an arc bending portion 230, the arc bending portion 230 is located between the first elongated plate 210 and the second elongated plate 220, the second elongated plate 220 is bent toward the first elongated plate 210, the first elongated plate 210 and the second elongated plate 220 are attached to each other after being bent, and the arc bending portion 230 needs to be bent into an arc shape in order to avoid a breakage of a bending position between the first elongated plate 210 and the second elongated plate 220. The following will describe the bending device 100 provided by the present invention in detail as follows:
referring to fig. 3 to 7 and 9, a bending apparatus 100 of the present invention includes a frame 1, an upper mold movement driving device 2, an upper mold 3, a lower mold movement driving device 4, a lower mold 5, a positioning assembly 6, a flat needle assembly 7, a pushing member 10, a pressing assembly 9, a bending assembly 8, a top block 11 and a carrier 12 for placing a workpiece 200, wherein the frame 1 is a layered frame structure, the frame 1 is provided with sliding grooves 1a corresponding to two sides of the carrier 12, the carrier 12 is clamped on the frame 1 through the sliding grooves 1a, the carrier 12 is located between the upper mold 3 and the lower mold 5, after the workpiece 200 is processed, the carrier 12 is unlocked in the sliding grooves 1a to enable the carrier 12 to be transferred to a next station, the lower mold 5 is installed at an output end of the lower mold movement driving device 4, the lower mold 5 is driven by the lower mold movement driving device 4 to be lifted, the lower mold 5 is installed on the frame 1 in a liftable manner, and the, The lower die 5 at an initial position, a first lower die position and a second lower die position, the initial position, the first lower die position and the second lower die position are sequentially arranged from bottom to top, the upper die 3 is arranged at the output end of the upper die movement driving device 2, the upper die 3 is driven by the upper die movement driving device 2 to lift, the upper die 3 is arranged on the rack 1 in a lifting way, the upper die 3 has an initial position, a first upper die position and a second upper die position relative to the carrier 12 by descending, the upper die 3 at the initial position, the first upper die position and the second upper die position are sequentially arranged from top to bottom, so that a plurality of actions are realized by the lifting of the upper die 3 and the lifting of the lower die 5, thereby realizing a plurality of procedures, the positioning assembly 6 is arranged on the lower die 5, when the lower die 5 is at the first lower die position, the positioning assembly 6 positions the workpiece 200 on the carrier 12, and the positioning assembly 6 extends to the workpiece 200 on, thereby positioning the workpiece 200 on the carrier 12, and further realizing the one-time positioning of the workpiece 200; the flat needle assembly 7 is arranged on the lower die 5 in a sliding mode, the pushing piece 10 and the pressing assembly 9 are both arranged on the upper die 3, the pushing piece 10 and the flat needle assembly 7 are arranged oppositely along the vertical direction of the rack 1, the flat needle 71 of the flat needle assembly 7 is pushed by the pushing piece 10 to move and the pressing assembly 9 extends out by moving the upper die 3 from an initial position to a first position of the upper die, when the upper die 3 is located at the first position of the upper die, the flat needle 71 extends into a bent part of the workpiece 200 and the pressing assembly 9 presses the workpiece 200 on the carrier 12, the flat needle 71 extends into the bent part of the workpiece 200 to keep an arc shape after being bent so as to avoid fracture, the pressing assembly 9 can realize secondary positioning on the workpiece 200 on the carrier 12 by pressing, and accordingly accuracy of subsequent bending; the bending assembly 8 is mounted on the upper die 3, the bending assembly 8 comprises a bending driving assembly 81 and a bending gear 82, the bending gear 82 and the bending driving assembly 81 are located right above the flat needle 71, the upper die 3 is moved from the first position of the upper die to the second position of the upper die, the bending gear 82 is driven by the bending driving assembly 81 to rotate so that the workpiece 200 is bent around the flat needle 71 (the bending direction is the direction indicated by an arrow D in fig. 8), and 180-degree bending of the workpiece 200 is achieved by rotation of the bending gear 82; the kicking block 11 is installed in lower mould 5, and the kicking block 11 has and supports and push up plane and kicking block 11 and be close to the gear 82 that bends, and the kicking block 11 presses to the bottom of work piece 200 when being in the lower mould second position in order to finalize the design to realize the laminating of two faces of buckling, in order to satisfy the production demand. Preferably, the upper mold movement driving device 2 and the lower mold movement driving device 4 are elevating devices, but not limited thereto. In this embodiment, two workpieces 200 can be processed simultaneously, so that the positioning assembly 6, the flat needle assembly 7, the pushing member 10, the pressing assembly 9, the bending assembly 8, and the ejector block 11 are symmetrically disposed in two sets. More specifically, the following:
referring to fig. 5 to 6, the positioning assembly 6 includes a plurality of positioning jaws 61, the positioning jaws 61 are mounted on the lower mold 5 at intervals, for example, the positioning jaws 61 are composed of positioning columns located at two sides of the workpiece 200, the two positioning columns clamp the workpiece 200 together to realize positioning, the plurality of positioning jaws 61 are provided, and the plurality of positioning jaws 61 are arranged along the workpiece 200, so that a manufacturer can set the positions of the positioning jaws 61 as required to realize stable positioning.
Referring to fig. 4, the flat needle assembly 7 further includes a matching pushing member 72, the matching pushing member 72 is mounted on the lower mold 5, the flat needle 71 is mounted on the matching pushing member 72, the flat needle 71 is of a cylindrical needle body structure, the head of the flat needle 71 is a pointed end, the matching pushing member 72 constantly has a tendency of moving the flat needle 71 in a direction away from the workpiece 200, the pushing member 10 has an inclined surface (not shown), the matching pushing member 72 has a matching pushing inclined surface 721 matched with the inclined surface, the pushing member 10 and the matching pushing member 72 are oppositely disposed in the up-down direction of the frame 1, the flat needle 71 is driven by the matching pushing member 72 to move by sliding fit between the inclined surface and the matching pushing inclined surface 721, that is, when the upper mold 3 moves from the initial position to the first position of the upper mold, the matching pushing member 72 moves under the pushing of the pushing member 10, so as to drive the flat needle 71 to extend into the bending position of the workpiece 200, conversely, when the upper mold 3 moves from the first position of, the pushing member 10 moves after losing the propping of the pushing member 10, so as to drive the flat needle 71 to exit from the bending part of the workpiece 200.
Referring to fig. 5 to 6, the pressing assembly 9 includes an upper pressing block 91 for pressing the top end surface of the workpiece 200 and a side pressing block 92 for pressing the side surface of the workpiece 200, and the upper pressing block 91 and the side pressing block 92 are mounted on the upper die 3, so as to press the top end surface and the side surface of the workpiece 200. The side briquetting 92 has the pressure recess 921 that has, the pressure recess 921 has the left inclined plane 922 that connects gradually, left vertical plane 923, horizontal plane 924, right vertical plane 925 and right inclined plane 926, left inclined plane 922 is formed by the bottom of left vertical plane 923 outwards extending, right inclined plane 926 is formed by the bottom of right vertical plane 925 outwards extending, left inclined plane 922, left vertical plane 923, horizontal plane 924, right vertical plane 925 and right inclined plane 926 form an opening jointly and are the pressure groove that expands form, not only can compress tightly the left and right two sides of work piece 200, and under the direction of left inclined plane 922 and right inclined plane 926, the work piece 200 card of being convenient for is gone into and is compressed the recess 921, during the chucking, left vertical plane 923 pastes the left surface of tight work piece 200, right vertical plane 925 pastes the right side of tight work piece 200, the top terminal surface of tight work piece 200 is pasted to last briquetting 91, thereby further form secondary positioning to work piece 200.
Referring to fig. 7 to 8, the bending driving assembly 81 includes a driving rack 811, an elastic expansion block 812 and an elastic member 813, the driving rack 811 is mounted on the upper die 3, the driving rack 811 is lifted with the lifting of the upper die 3, the upper die 3 is provided with a sliding slot 31 corresponding to the elastic expansion block 812, the elastic expansion block 812 is slidably disposed in the sliding slot 31, the elastic member 813 is elastically compressed between the upper die 3 and the elastic expansion block 812, so that the elastic expansion block 812 has a tendency to extend out of the upper die 3, the elastic expansion block 812 is elastically mounted on the upper die 3, the elastic expansion block 812 can extend out or retract relative to the upper die 3, the bending gear 82 is pivotally connected to the elastic expansion block 812, the driving rack 811 is engaged with the bending gear 82, the elastic expansion block 812 is located right above the flat pin assembly 7 and the workpiece 200, and during the process that the upper die 3 moves from the upper die first position to the upper die second position, the driving rack 811, the elastic expansion block 812 and the bending gear 82 all descend synchronously, when the driving rack 811, the elastic expansion block 812 and the bending gear 82 reach the workpiece 200, because the elastic expansion block 812 is positioned right above the flat needle assembly 7 and the workpiece 200, the elastic expansion block 812 can elastically expand and contract under the blockage of the positioning assembly 6 at the workpiece 200 and the workpiece 200, the elastic expansion block 812 stops descending, meanwhile, the driving rack 811 continues descending, the bending gear 82 is meshed with the driving rack 811, and the bending gear 82 rotates under the driving of the driving rack 811, so that the workpiece 200 is rotatably bent by 180 degrees around the flat needle 71 (the rotating direction is the direction indicated by the arrow D in fig. 8). Specifically, the outer edge of the bending gear 82 is provided with meshing teeth 821 meshed with the driving rack 811, one side of the bending gear 82 is provided with a bending groove 822, the cross section of the bending groove 822 is arc-shaped, the center of the bending groove 822 is eccentrically arranged, the pivoting point of the bending gear 82 and the elastic expansion block 812 is spaced from the center of the bending groove 822, and the bending gear 82 is driven by the driving rack 811 to rotate, so that the bending groove 822 rotates around the flat needle 71, and 180-degree bending of the workpiece 200 is achieved.
Referring to fig. 9 to 10, the top block 11 is located at one side of the notch of the bending groove 822, so that the two bending surfaces are attached to each other by the rising and the abutting of the top block 11, thereby meeting the production requirement. The carrier 12 is respectively provided with a through hole 121 for the positioning component 6, the flat needle component 7, the pushing component 10, the pressing component 9, the bending component 8 and the jacking block 11 to pass through. After the bending is finished, the upper die returns to the initial position, the lower die returns to the initial position, and all the parts reset.
Referring to fig. 3 to 10, the operation of the bending apparatus 100 of the present invention will be further described:
the carrier 12 carries a workpiece 200, the carrier 12 is moved between the upper die 3 and the lower die 5, the lower die 5 is lifted from an initial position to a first position of the lower die, and the plurality of positioning clamping jaws 61 are driven by the lower die 5 to extend to the workpiece 200 on the carrier 12, so that the workpiece 200 on the carrier 12 is positioned, and further, the workpiece 200 is positioned at one time;
the upper die 3 is lowered from an initial position to a first position of the upper die, so that the pushing piece 10 and the pressing assembly 9 are driven to descend, the matched pushing piece 72 constantly has a tendency that the flat needle 71 moves in a direction away from the workpiece 200, the matched pushing piece 72 moves under the pushing of the pushing piece 10, so that the flat needle 71 is driven to extend into a bending position of the workpiece 200, during clamping, the pressing assembly 9 descends to enable the left vertical surface 923 to be attached to the left side surface of the workpiece 200, the right vertical surface 925 is attached to the right side surface of the workpiece 200, and the upper pressing block 91 is attached to the top end surface of the workpiece 200, so that secondary positioning is further formed on the workpiece 200;
the upper die 3 moves from the first position of the upper die to the second position of the upper die, the driving rack 811, the elastic telescopic block 812 and the bending gear 82 all descend synchronously, when the drive rack 811, the resilient pads 812 and the bending gear 82 reach the workpiece 200, since the elastic bellows 812 is located directly above the flat needle assembly 7 and the workpiece 200, under the blockage of the workpiece 200 and the positioning component 6 at the workpiece 200, the elastic telescopic block 812 can elastically expand and contract, the elastic telescopic block 812 stops descending, meanwhile, the driving rack 811 continues to descend, the bending gear 82 is engaged with the driving rack 811, the bending gear 82 is driven by the driving rack 811 to rotate, so that the workpiece 200 is bent by 180 degrees around the flat pin 71 in a rotating manner, so that the bending groove 822 is rotated around the flat pin 71, thereby, 180-degree bending of the workpiece 200 is realized, that is, the second long plate 220 is bent towards the first long plate 210;
the kicking block 11 is located one side of the notch of bending groove 822 to rising through kicking block 11 with support and make two bending face laminating, second elongated plate 220 laminates each other after bending to first elongated plate 210 promptly, bends and accomplishes the back, goes up the mould and withdraws to initial position, and the lower mould withdraws to initial position, and each part resets.
Since the upper die 3, the lower die 5, the positioning component 6, the flat needle component 7, the pushing component 10, the pressing component 9, the bending component 8, the ejector block 11 and the like are combined together, the lower die 5 is arranged on the frame 1 in a lifting way, the lower die 5 has a first lower die position and a second lower die position relative to the carrier 12 by lifting, the upper die 3 is arranged on the frame 1 in a lifting way, the upper die 3 has a first upper die position and a second upper die position relative to the carrier 12 by descending, a plurality of actions are realized by lifting of the upper die 3 and lifting of the lower die 5, thereby realizing a plurality of working procedures, the positioning component 6 is arranged on the lower die 5, when the lower die 5 is positioned at the first position of the lower die, the positioning component 6 positions the workpiece 200 on the carrier 12, and the lower die 5 moves from the initial position to the first position of the lower die, so that the positioning component 6 positions the workpiece 200 on the carrier 12, and further, the workpiece 200 is positioned at one time; the flat needle assembly 7 is arranged on the lower die 5 in a sliding mode, the pushing piece 10 and the pressing assembly 9 are both arranged on the upper die 3, the flat needle 71 of the flat needle assembly 7 moves under the pushing of the pushing piece 10 and the pressing assembly 9 extends out when the upper die 3 moves from the initial position to the first position of the upper die, when the upper die 3 is located at the first position of the upper die, the flat needle 71 extends into the bending position of the workpiece 200 and the pressing assembly 9 presses the workpiece 200 on the carrier 12 tightly, the bending position of the workpiece 200 can be kept in an arc shape after being bent by the extension of the flat needle 71 so as to avoid fracture, and the pressing of the pressing assembly 9 can realize secondary positioning on the workpiece 200 on the; the bending assembly 8 is mounted on the upper die 3, the bending assembly 8 comprises a bending driving assembly 81 and a bending gear 82, the upper die 3 moves from the first position of the upper die to the second position of the upper die, the bending gear 82 rotates under the driving of the bending driving assembly 81 to bend the workpiece 200 around the flat needle 71, and 180-degree bending of the workpiece 200 is achieved through rotation of the bending gear 82; in summary, the bending apparatus 100 of the present invention can automatically complete 180 degrees bending of the workpiece 200 and make the two bent surfaces fit together, and has the advantages of high automation degree and 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 (10)

1. A bending device is characterized by comprising a rack, an upper die, a lower die, a positioning assembly, a flat needle assembly, a pushing piece, a pressing assembly, a bending assembly, a jacking block and a carrier for placing a workpiece, wherein the carrier is clamped on the rack and positioned between the upper die and the lower die, the lower die is arranged on the rack in a lifting manner, the lower die is provided with a first lower die position and a second lower die position relative to the carrier through lifting, the upper die is arranged on the rack in a lifting manner, the upper die is provided with a first upper die position and a second upper die position relative to the carrier through descending, the positioning assembly is arranged on the lower die, and when the lower die is positioned at the first lower die position, the positioning assembly positions the workpiece on the carrier; the flat needle assembly is arranged on the lower die in a sliding mode, the pushing piece and the pressing assembly are both arranged on the upper die, the flat needle of the flat needle assembly moves under the pushing of the pushing piece, and when the upper die is located at the first position of the upper die, the flat needle extends into the bending position of a workpiece and the pressing assembly presses the workpiece on the carrier; the bending assembly is arranged on the upper die and comprises a bending driving assembly and a bending gear, the bending gear is driven by the bending driving assembly to rotate so as to bend the workpiece around the flat needle by moving the upper die from a first position of the upper die to a second position of the upper die; the ejector block is arranged on the lower die, and the ejector block presses the bottom of the workpiece to be shaped when being located at the second position of the lower die.
2. The bending apparatus according to claim 1, wherein the positioning assembly includes a plurality of positioning jaws mounted to the lower die in spaced relation.
3. The bending apparatus according to claim 1, wherein the flat needle assembly further comprises a matching pushing member, the matching pushing member is mounted on the lower mold, the flat needle is mounted on the matching pushing member, the pushing member has an inclined surface, the matching pushing member has a matching pushing inclined surface matched with the inclined surface, and the flat needle is moved by the matching pushing member due to a sliding fit between the inclined surface and the matching pushing inclined surface.
4. The bending apparatus according to claim 1, wherein the pressing assembly includes an upper pressing block for pressing a top end surface of the workpiece and a side pressing block for pressing a side surface of the workpiece, the upper pressing block and the side pressing block being mounted to the upper die.
5. The bending device according to claim 4, wherein the side pressure blocks have pressing grooves, and the pressing grooves have a left inclined surface, a left vertical surface, a horizontal surface, a right vertical surface and a right inclined surface which are connected in sequence, the left inclined surface is formed by extending the bottom of the left vertical surface outwards, and the right inclined surface is formed by extending the bottom of the right vertical surface outwards.
6. The bending device according to claim 1, wherein the bending driving assembly comprises a driving rack and an elastic telescopic block, the driving rack is mounted on the upper die, the elastic telescopic block is elastically mounted on the upper die and can extend or retract relative to the upper die, the bending gear is pivoted to the elastic telescopic block, and the driving rack is engaged with the bending gear.
7. The bending device according to claim 6, wherein the bending driving assembly further comprises an elastic member, the upper die is provided with a sliding groove corresponding to the elastic expansion block, the elastic expansion block is slidably disposed in the sliding groove, and the elastic member is elastically compressed between the upper die and the elastic expansion block, so that the elastic expansion block has a tendency to extend out of the upper die.
8. The bending device according to claim 6, 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.
9. The bending device according to claim 8, wherein the top block is located on one side of the notch of the bending groove.
10. The bending device according to claim 1, wherein the carriers are respectively provided with through holes for the positioning assembly, the flat needle assembly, the pushing member, the pressing assembly, the bending assembly and the ejector block to pass through.
CN201911424496.4A 2019-12-30 2019-12-30 Bending device Pending CN110918726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911424496.4A CN110918726A (en) 2019-12-30 2019-12-30 Bending device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911424496.4A CN110918726A (en) 2019-12-30 2019-12-30 Bending device

Publications (1)

Publication Number Publication Date
CN110918726A true CN110918726A (en) 2020-03-27

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CN201911424496.4A Pending CN110918726A (en) 2019-12-30 2019-12-30 Bending device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117381036A (en) * 2023-12-11 2024-01-12 厦门财鑫科技有限公司 Milling equipment for S elbow inner groove

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117381036A (en) * 2023-12-11 2024-01-12 厦门财鑫科技有限公司 Milling equipment for S elbow inner groove
CN117381036B (en) * 2023-12-11 2024-03-01 厦门财鑫科技有限公司 Milling equipment for S elbow inner groove

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