CN215697337U

CN215697337U - Roller shaft wrap angle bending die

Info

Publication number: CN215697337U
Application number: CN202121218797.4U
Authority: CN
Inventors: 李保良
Original assignee: Suzhou Selsi Precision Industry Co ltd
Current assignee: Suzhou Selsi Precision Industry Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-02-01
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to the technical field of dies and discloses a roller wrap angle bending die which comprises an upper clamping plate, a stripper plate, a bending punch and a fixing mechanism, wherein a through groove is formed in the surface of the stripper plate in a penetrating manner, a circular groove and a wrap angle circular arc are respectively formed below the right side of the bending punch, and a bending roller is arranged inside the circular groove; the plate bending device adopts a rolling friction mode to bend the plate, so that scratches are avoided, the two sides of the plate can be effectively limited, the plate is prevented from offsetting, the problems that sliding friction exists between a punch and the plate in the stamping process of some existing bending dies, the dies are seriously worn, scratches exist on the bent plate, the attractiveness of the plate is affected are solved, and the problems that the plate is inevitably offset and the bending position of the plate is changed to affect the product quality due to the fact that the two sides of the plate are not limited in the bending stamping process at present are solved.

Description

Roller shaft wrap angle bending die

Technical Field

The utility model relates to the technical field of dies, in particular to a roller wrap angle bending die.

Background

The die stamping production mainly aims at the plate, and the plate can be processed in the modes of blanking, punching, forming, deep drawing, trimming, fine stamping, shaping, riveting, extruding and the like through the die. Bend the punching press and be the form of bending through the drift with the plate extrusion, the department of bending of plate is usually extruded 90 left and right sides, however current mould of bending leans on the drift to punch press to the plate, be sliding friction between drift and the plate, not only cause the mould wearing and tearing serious, there is the scratch in the plate after bending simultaneously, influence the pleasing to the eye of plate, and at the in-process of bending, if do not carry on spacingly to the both sides of plate, can certainly lead to the plate skew, and then the position that leads to the plate to bend changes, influence the quality of product, we propose one kind to adopt rolling friction's mode to bend the plate for this reason, scratch avoids appearing, and can effectively be spacing to the both sides of plate, the roller bearing cornerite mould of bending that prevents the skew from appearing in the plate solves this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a roller wrap angle bending die to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a roller wrap angle bending die comprises an upper clamping plate, a stripper plate, a bending punch and a fixing mechanism, wherein a through groove is formed in the surface of the stripper plate in a penetrating manner, a circular groove and a wrap angle circular arc are respectively formed below the right side of the bending punch, a bending roller is arranged inside the circular groove, two sides of the bending roller are respectively and rotatably connected with a connecting plate, two sides of the top of an inner cavity of the circular groove are respectively provided with a fixing groove, the connecting plate is in sliding connection with the inner wall of the fixing groove, an inner groove is formed in the right side of the inner cavity of the stripper plate, the left side and the right side of the inner cavity of the inner groove are respectively and rotatably connected with a first screw rod and a second screw rod, moving blocks are respectively and threadedly connected to the front side and the rear side of the surface of the first screw rod and the second screw rod, bottom grooves are respectively formed in the front side and the rear side of the bottom of the connecting plate, vertical rods are bolted with limiting plates, the front end of the second screw rod is provided with a rotating block, and a transmission mechanism is arranged in the inner groove.

Further, the fixing mechanism comprises a threaded hole, a through hole and a fixing bolt, the threaded hole penetrates through the surface of the connecting plate, the through holes are respectively formed in the surfaces of the two sides of the bending punch and are communicated with the fixing groove, and the fixing bolt is respectively in threaded connection with the threaded hole and the inner wall of the through hole.

Further, drive mechanism includes first sprocket, chain and second sprocket, first sprocket and second sprocket bolt respectively on the surface of first screw rod and second screw rod, first sprocket and second sprocket all with chain intermeshing.

Further, the length of the first screw is smaller than that of the second screw, and threads on the surfaces of the first screw and the second screw are symmetrically arranged.

Furthermore, four corners of the surface of the upper clamping plate are penetrated and provided with sliding grooves, four corners of the top of the stripper plate are bolted with sliding rods, and the sliding rods are in sliding connection with the inner walls of the sliding grooves.

Furthermore, the surfaces of the opposite sides of the limiting plates at the two sides are respectively bonded with a sliding assisting pad, and the area of the sliding assisting pad is the same as that of the limiting plate.

The utility model has the beneficial effects that: the plate bending device adopts a rolling friction mode to bend the plate, so that scratches are avoided, the two sides of the plate can be effectively limited, the plate is prevented from being deviated, the problems that the abrasion of a die is serious, the bent plate is scratched to influence the attractiveness of the plate due to the sliding friction between a punch and the plate in the stamping process of some conventional bending dies are solved, and the problems that the plate is deviated, the bending position of the plate is changed and the product quality is influenced due to the fact that the plate is inevitably deviated if the two sides of the plate are not limited in the bending and stamping processes at present are solved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an elevational, cross-sectional view of the structure of the present invention;

FIG. 3 is a top sectional view of the stripper plate of the present invention;

FIG. 4 is a perspective view of a portion of the present invention;

in the figure: 1-upper splint; 2-stripping plate; 3-bending the punch; 4-through groove; 5-circular groove; 6-bending a roller; 7-a connecting plate; 8-a fixing mechanism; 81-threaded hole; 82-a through hole; 83-fixing bolts; 9-wrap angle circular arc; 10-a fixed groove; 11-an inner groove; 12-a first screw; 13-a second screw; 14-a moving block; 15-bottom groove; 16-a vertical rod; 17-a limiting plate; 18-a turning block; 19-a transmission mechanism; 191 — a first sprocket; 192-a chain; 193-a second sprocket; 20-a slide bar; 21-a chute; 22-sliding aid pad.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

The roller wrap angle bending die shown in fig. 1-4 comprises an upper clamping plate 1, a stripper plate 2, a bending punch 3 and a fixing mechanism 8, wherein a through groove 4 is formed in the surface of the stripper plate 2 in a penetrating manner, a circular groove 5 and a wrap angle circular arc 9 are respectively formed below the right side of the bending punch 3, a bending roller 6 is arranged inside the circular groove 5, connecting plates 7 are rotatably connected to both sides of the bending roller 6, fixing grooves 10 are respectively formed in both sides of the top of an inner cavity of the circular groove 5, the connecting plates 7 are slidably connected with the inner walls of the fixing grooves 10, an inner groove 11 is formed in the right side of the stripper plate 2, a first screw 12 and a second screw 13 are rotatably connected to both sides of the inner cavity of the inner groove 11, moving blocks 14 are respectively and threadedly connected to both the front side and the rear side of the surfaces of the first screw 12 and the second screw 13, bottom grooves 15 are respectively formed in both the front side and the rear side of the bottom of the connecting plates 7, the bottom bolt of movable block 14 has connect montant 16, the bottom bolt of montant 16 has limit plate 17, turning block 18 is installed to the front end of second screw 13, the inside of inside groove 11 is provided with drive mechanism 19, this mould adopts rolling friction's mode to bend the plate, avoid appearing the scratch, and can effectively spacing to the both sides of plate, prevent that the plate from appearing the skew, some present moulds of bending are at the in-process of punching press, be sliding friction between drift and the plate, not only cause the mould wearing and tearing seriously, the plate after bending simultaneously has the scratch, influence the pleasing to the eye problem of plate, the in-process of punching press at present bending has been solved simultaneously, if do not carry out spacingly to the both sides of plate, will certainly cause the plate skew, and then lead to the position that the plate bent to change, influence product quality's problem.

On the basis, the fixing mechanism 8 comprises a threaded hole 81, a through hole 82 and a fixing bolt 83, the threaded hole 81 penetrates through the surface of the connecting plate 7, the through holes 82 are respectively arranged on the surfaces of two sides of the bending punch 3, the through hole 82 is communicated with the fixing groove 10, the fixing bolt 83 is respectively in threaded connection with the inner walls of the threaded hole 81 and the through hole 82, through the arrangement of the threaded hole 81, the through hole 82 and the fixing bolt 83, when the bending roller 6 is located inside the circular groove 5, the connecting plate 7 is located inside the fixing groove 10, the threaded hole 81 and the through hole 82 are aligned with each other at the moment, then the fixing bolt 83 is rotated to enable the fixing bolt 83 to sequentially enter the through hole 82 and the threaded hole 81, the connecting plate 7 and the bending roller 6 can be fixed, and meanwhile, the fixing can also be detached.

On the basis, the transmission mechanism 19 comprises a first chain wheel 191, a chain 192 and a second chain wheel 193, the first chain wheel 191 and the second chain wheel 193 are respectively bolted on the surfaces of the first screw 12 and the second screw 13, the first chain wheel 191 and the second chain wheel 193 are meshed with the chain 192, and the first chain wheel 191, the chain 192 and the second chain wheel 193 are matched to enable the second screw 13 to rotate and drive the first screw 12 to synchronously rotate.

On the basis, the length of the first screw 12 is smaller than that of the second screw 13, and the threads on the surfaces of the first screw 12 and the second screw 13 are symmetrically arranged, so that the moving blocks 14 on the front side and the rear side can move in opposite directions or opposite directions while the screws rotate.

On the basis, the four corners on the surface of the upper clamping plate 1 are all penetrated and provided with sliding grooves 21, the four corners at the top of the stripper plate 2 are all bolted with sliding rods 20, the sliding rods 20 are in sliding connection with the inner walls of the sliding grooves 21, and the sliding rods 20 can be in sliding connection with the inner walls of the sliding grooves 21 through the arrangement of the sliding grooves 21 and the sliding rods 20, so that the mutual positioning effect of the upper clamping plate 1 and the stripper plate 2 is realized.

On the basis, the surface of the opposite side of the limiting plate 17 on the two sides is bonded with the sliding assisting pad 22, the area of the sliding assisting pad 22 is the same as that of the limiting plate 17, the sliding assisting pad 22 can protect the limiting plate 17, and meanwhile, the limiting plate 17 can be prevented from scratching the plate.

The working principle is as follows: during operation, firstly, a plate is placed below the stripper plate 2, the bottom of the right side of the plate is fixed, meanwhile, the left side of the plate is positioned below the through groove 4, meanwhile, a tool is used for rotating the rotating block 18, the rotating block drives the second screw 13 to start rotating, then the second screw 13 drives the first screw 12 to synchronously rotate through the second chain wheel 193, the chain 192 and the first chain wheel 191, at the moment, the screws on the two sides synchronously rotate, the moving blocks 14 on the front side and the rear side start to do relative motion, then the vertical rods 16 on the front side and the rear side and the limiting plates 17 start to do relative motion until the sliding assisting pads 22 on the surfaces of the limiting plates 17 cling to the plate, at the moment, the two sides of the plate are in a limiting state, the plate is prevented from deviating in the bending and stamping process, in the bending process, the punch drives the upper clamping plate 1 and the bending punch 3 to start to move downwards, and then the bending roller 6 firstly contacts with the plate, at the moment, the plate begins to bend under the action of downward force, no scratch is generated in the bending process, the punch is continuously pressed downwards, the outer arc of the product is pressed back by the wrap angle arc 9 until the angle is stable, the plate is free of scratch in appearance after being bent in the process, the bending size and the bending angle are stable, and meanwhile, sliding friction is replaced by rolling friction, so that severe friction cannot be generated between the die and the plate, and the die maintenance frequency is greatly reduced.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a roller bearing cornerite mould of bending, includes punch holder (1), takes off flitch (2), bends drift (3) and fixed establishment (8), its characterized in that: the surface of the stripper plate (2) is provided with a through groove (4) in a penetrating manner, the lower part of the right side of the bending punch (3) is respectively provided with a circular groove (5) and a wrap angle circular arc (9), the inside of the circular groove (5) is provided with a bending roller (6), two sides of the bending roller (6) are respectively connected with a connecting plate (7) in a rotating manner, two sides of the top of the inner cavity of the circular groove (5) are respectively provided with a fixed groove (10), the connecting plate (7) is connected with the inner wall of the fixed groove (10) in a sliding manner, the right side of the inside of the stripper plate (2) is provided with an inner groove (11), the left side and the right side of the inner cavity of the inner groove (11) are respectively connected with a first screw rod (12) and a second screw rod (13) in a rotating manner, the front side and the rear side of the surfaces of the first screw rod (12) and the second screw rod (13) are respectively connected with a moving block (14) in a threaded manner, and the front side and rear side of the bottom of the connecting plate (7) are respectively provided with a bottom groove (15), the bottom of the moving block (14) is connected with a vertical rod (16) in a bolted mode, the bottom end of the vertical rod (16) is connected with a limiting plate (17) in a bolted mode, the front end of the second screw (13) is provided with a rotating block (18), and a transmission mechanism (19) is arranged inside the inner groove (11).

2. The roller cornerite bending die of claim 1, which is characterized in that: fixing mechanism (8) are including screw hole (81), through-hole (82) and fixing bolt (83), screw hole (81) run through and set up the surface at connecting plate (7), through-hole (82) are seted up respectively on the surface of bending drift (3) both sides, and through-hole (82) and fixed slot (10) communicate each other, fixing bolt (83) respectively with the inner wall threaded connection of screw hole (81) and through-hole (82).

3. The roller cornerite bending die of claim 1, which is characterized in that: the transmission mechanism (19) comprises a first chain wheel (191), a chain (192) and a second chain wheel (193), the first chain wheel (191) and the second chain wheel (193) are respectively bolted on the surfaces of the first screw (12) and the second screw (13), and the first chain wheel (191) and the second chain wheel (193) are meshed with the chain (192).

4. The roller cornerite bending die of claim 1, which is characterized in that: the length of the first screw (12) is smaller than that of the second screw (13), and the threads on the surfaces of the first screw (12) and the second screw (13) are symmetrically arranged.

5. The roller cornerite bending die of claim 1, which is characterized in that: the four corners on the surface of the upper clamping plate (1) are all penetrated and provided with sliding grooves (21), the four corners at the top of the stripper plate (2) are all bolted with sliding rods (20), and the sliding rods (20) are in sliding connection with the inner walls of the sliding grooves (21).

6. The roller cornerite bending die of claim 1, which is characterized in that: the surfaces of the opposite sides of the limiting plates (17) on the two sides are respectively bonded with a sliding assisting pad (22), and the area of the sliding assisting pads (22) is the same as that of the limiting plates (17).