CN216632100U

CN216632100U - Positioning device for bending machine

Info

Publication number: CN216632100U
Application number: CN202122483758.3U
Authority: CN
Inventors: 文洪远
Original assignee: Suzhou Xiebida Precision Technology Co ltd
Current assignee: Suzhou Xiebida Precision Technology Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-05-31
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses a positioning device for a bending machine, which aims at solving the problem that a thicker plate is easy to incline and wear when a material is bent in the prior art and provides the following technical scheme. Through setting up backstop, left dog and right dog, fix a position the work piece from horizontal and vertical respectively, set up and bend the backup pad bearing work piece that the lower mould flushed, avoid the work piece slope, improve the precision of bending, set up the face of cylinder and reduce the wearing and tearing to the work piece, promote the yield.

Description

Positioning device for bending machine

Technical Field

The utility model relates to the technical field of bending processing, in particular to a positioning device for a bending machine.

Background

The bending machine is important equipment for bending and forming a workpiece, and mainly comprises a left upright, a right upright, a workbench and a cross beam, wherein a left oil cylinder and a right oil cylinder are fixed on the uprights, a sliding block is connected with a piston of the oil cylinder and moves up and down along a guide rail fixed on the uprights, a lower die is fixed on the workbench, an upper die is arranged at the lower end of the sliding block, a hydraulic system provides power, an electrical system gives instructions, and the sliding block drives the upper die to be closed downwards with the lower die under the action of the oil cylinder to realize the bending of the sheet. During bending, the workpiece is positioned through the positioning mechanism, so that the bending precision is improved.

At present, a chinese patent with application number 201520253568.4 discloses a side positioning bending die, which comprises an upper bending die, a lower bending die, a side backer fixed on the lower bending die, and a rear backer aligned with a product bending positioning point; the side backer includes: the lower die fixing seat is fixed on the bending lower die, and the adjusting piece is used for adjusting the distance between the side backer and the product.

Although this kind of side location mould of bending is applicable to the product of various shapes, but during the use, the position that leans on dog and back backer through the adjustable side of adjustment makes the product accomplish the location, only the effect of keeping level the location to the product, no supporting role, however often need bend the condition of thick panel, panel is heavier this moment, thereby it influences the precision of bending to only lean on the manpower to support to produce the slope easily during bending, and because panel is thicker, the area of the one end that panel and back backer offset is great, the friction that panel upwards rotates and back backer produced during bending is great, thereby panel is easily worn and torn the influence yield.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the positioning device for the bending machine, which has the advantages of suitability for thicker plates, high bending precision and high product yield.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a positioner for bending machine, is used for bearing work piece including locating the workstation backup pad, locating the backup pad and being used for keeping out the backstop of work piece rear end, locating the backup pad and being used for keeping out the left dog of work piece to and locate the right dog that the backup pad is used for keeping out the work piece right side, the top surface of backup pad flushes with the top surface of the lower mould of bending, the backstop is close to the one end of work piece and has the face of cylinder of horizontal setting.

By adopting the technical scheme, the workbench is arranged on the supporting plate and used for supporting the workpiece, the working strength of operators can be reduced, the top surface of the supporting plate is flushed with the top surface of the bending lower die, the workpiece is kept horizontal, the workpiece is prevented from being inclined to affect the bending precision, the rear stop block is arranged on the supporting plate and used for abutting against the rear end of the workpiece, the left stop block is arranged on the left side of the supporting plate and used for abutting against the left side of the workpiece, the right stop block is arranged on the right side of the supporting plate and used for abutting against the right side of the workpiece, the workpiece is positioned through the rear stop block and the left stop block, the bending precision of the workpiece is improved, one end, close to the workpiece, of the rear stop block is provided with the horizontally arranged cylindrical surface, when the rear stop block abuts against the rear end of the workpiece, the cylindrical surface is in line contact with the workpiece, the contact area of the opposite surface is reduced, the friction is reduced, the abrasion of the workpiece is avoided, and the yield is improved.

Furthermore, the rear stop block is connected with a roller for forming the cylindrical surface, and the roller can rotate around the axis of the roller.

By adopting the technical scheme, the rear stop block is connected with the roller for forming the cylindrical surface, and the roller can rotate around the self axis, so that the friction coefficient of a contact surface is reduced, and the loss of a workpiece is further reduced.

Furthermore, the rear stop block is connected with the support plate in a sliding mode, the rear stop block is locked on the support plate through a fastening piece, and the front sides of the left stop block and the right stop block are flush with the rear side of the bending lower die respectively.

By adopting the technical scheme, the rear check block is connected with the supporting plate in a sliding manner, the position of the rear check block is adjusted by the sliding rear check block, the rear check block is suitable for workpieces with various lengths, the rear check block is locked on the supporting plate through the fastening piece, the stability of the rear check block during bending is improved, the front sides of the left check block and the right check block are respectively flushed with the rear side of the bending lower die, and shorter workpieces can also be positioned from the side edges.

Furthermore, the left stop block and the right stop block are respectively in sliding connection with the support plate, and the left stop block and the right stop block are respectively locked on the support plate through fasteners.

By adopting the technical scheme, the left stop block and the right stop block are respectively in sliding connection with the supporting plate, the left stop block and the right stop block are slid to adjust the positions of the left stop block and the right stop block and the distance between the left stop block and the right stop block, the workpiece with various widths is suitable for, the stop block can position workpieces with various shapes after being matched, the left stop block and the right stop block are respectively locked on the supporting plate through fasteners, and the stability of the left stop block and the right stop block during bending is improved.

Furthermore, the support plate is provided with a longitudinal guide rail used for being connected with the rear stop block, and the support plate is provided with a transverse guide rail used for being connected with the left stop block and the right stop block.

By adopting the technical scheme, the supporting plate is provided with the longitudinal guide rail used for connecting the rear stop block, so that the rear stop block can be conveniently guided to slide, and the supporting plate is provided with the transverse guide rail used for connecting the left stop block and the right stop block, so that the left stop block and the right stop block can be conveniently guided to slide.

Furthermore, one end of the left check block, which is close to the workpiece, is provided with a left arc opening for guiding the workpiece to the processing station, and one end of the right check block, which is close to the workpiece, is provided with a right arc opening for guiding the workpiece to the processing station.

By adopting the technical scheme, one end of the left stop block, which is close to the workpiece, is provided with the left arc opening for guiding the workpiece to the processing station, and one end of the right stop block, which is close to the workpiece, is provided with the right arc opening for guiding the workpiece to the processing station, so that the loading and the auxiliary positioning are facilitated.

In conclusion, the utility model has the following beneficial effects:

1. the workpiece is respectively positioned from the transverse direction and the longitudinal direction by arranging the rear stop block, the left stop block and the right stop block, and the supporting plate which is flush with the lower bending die is arranged to support the workpiece, so that the workpiece is prevented from being inclined, and the bending precision is improved;

2. the roller is arranged to abut against the workpiece, so that the abrasion of the workpiece is reduced, and the yield is improved;

3. set up position adjustable backstop, left dog and right dog, can fix a position the work piece of multiple shape and size, set up left nock and right nock guide work piece to processing position, be convenient for material loading and assistance-localization real-time.

Drawings

FIG. 1 is a schematic structural diagram of a positioning device for a bending machine in an embodiment;

fig. 2 is a partial exploded view of a positioning device for a bending machine in an embodiment.

In the figure: 1. a support plate; 2. a rear stop block; 21. a drum; 3. a left stop block; 31. a left arc mouth; 4. a right stopper; 41. a right arc port; 5. a work table; 6. a longitudinal guide rail; 61. a longitudinal chute; 62. a longitudinal slide block; 7. a transverse guide rail; 71. a transverse chute; 72. a left slider; 73. a right slider; 8. a workpiece; 9. and bending the lower die.

Detailed Description

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

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

A positioning device for a bending machine is disclosed, referring to figures 1 and 2, and comprises a support plate 1, a back stop block 2, a left stop block 3 and a right stop block 4, wherein the support plate 1 is fixed on the top surface of a workbench 5 and is used for supporting a workpiece 8, the top surface of the support plate 1 is flush with the top surface of a lower bending die 9, the back stop block 2 is arranged on the top surface of the support plate 1 and is used for resisting the rear end of the workpiece 8, one end of the back stop block 2 close to the workpiece 8 is provided with a transversely arranged cylindrical surface so as to reduce the contact area with the workpiece 8, the left stop block 3 is arranged on the top surface of the support plate 1 and is used for resisting the left side of the workpiece 8, the right stop block 4 is arranged on the top surface of the support plate 1 and is used for resisting the right side of the workpiece 8, the workpiece 8 is placed on the lower bending die 9 during operation, the rear part of the workpiece 8 is supported by the support plate 1 so as to prevent the workpiece 8 from inclining, the rear side and the left and right sides of the workpiece 8 are respectively abutted against the cylindrical surface of the back stop block 2, the left stop block 3 and the right stop block 4, thereby positioning the workpiece 8.

Specifically, referring to fig. 1 and 2, one end of the back stop 2 close to the workpiece 8 is connected to a roller 21 for forming a cylindrical surface, the back stop 2 is fixed with a fixing shaft for connecting the roller 21, the fixing shaft is inserted into the roller 21 as an axis of the roller 21, the roller 21 can rotate around the fixing shaft, one end of the left stop 3 close to the workpiece 8 is provided with a left arc opening 31 for guiding the workpiece 8 to a processing position, and one end of the right stop 4 close to the workpiece 8 is provided with a right arc opening 41 for guiding the workpiece 8 to the processing position.

Referring to fig. 1 and 2, the rear block 2 is slidably connected to the supporting plate 1, a longitudinal guide rail 6 for connecting the rear block 2 is disposed on the top surface of the supporting plate 1, the longitudinal guide rail 6 includes a longitudinal sliding groove 61 disposed in the middle of the top surface of the supporting plate 1, and a longitudinal sliding block 62 fixed to the bottom of the rear block 2, the longitudinal sliding block 62 and the longitudinal sliding groove 61 are matched in shape and can move along the longitudinal sliding groove 61, the rear block 2 is locked to the supporting plate 1 by a fastener, the front sides of the left block 3 and the right block 4 are respectively flush with the rear side of the bending lower die 9, the left block 3 and the right block 4 are respectively slidably connected to the supporting plate 1, a transverse guide rail 7 for connecting the left block 3 and the right block 4 is disposed on the top surface of the supporting plate 1, the transverse guide rail 7 includes a transverse sliding groove 71 disposed on the top surface of the supporting plate 1, a left sliding block 72 fixed to the bottom of the left block 3, and a right sliding block 73 fixed to the bottom of the right block 4, the left slider 72 and the right slider 73 can move along the transverse sliding groove 71 together with the transverse sliding groove 71, the left stopper 3 and the right stopper 4 are locked on the support plate 1 through fasteners respectively, the transverse sliding groove 71 penetrates through the left end and the right end of the support plate 1, the longitudinal sliding groove 61 is arranged behind the transverse sliding groove 71, the length of the rear stopper 2 is greater than that of the longitudinal slider 62, and when the front ends of the longitudinal slider 62 and the longitudinal sliding groove 61 abut against each other, the rear stopper 2 can abut against shorter workpieces.

The working process and principle of the embodiment are as follows:

during the use, according to the shape and the size of the work piece 8 of treating processing, adjust backstop 2, the position of left dog 3 and right dog 4, put work piece 8 on the lower mould 9 of bending, work piece 8 rear end bearing makes work piece 8 keep the level on backup pad 1, improve the precision of bending, then impel to the left and right sides that supports and keep off work piece 8 between left dog 3 and the right dog 4 along left nock 31 and right nock 41, promote work piece 8 to backstop 2 front ends backward, cylinder 21 supports work piece 8 rear side, make work piece 8 be located the station of bending accurately, accomplish the location to work piece 8, during bending, 8 rear sides of work piece rotate and cylinder 21 relative slip upward, reduce wearing and tearing, thereby the yield has been improved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.

Claims

1. The utility model provides a positioner for bender which characterized in that: the workpiece supporting device comprises a supporting plate (1) arranged on a workbench (5) and used for supporting a workpiece (8), a rear stop block (2) arranged on the supporting plate (1) and used for abutting against the rear end of the workpiece (8), a left stop block (3) arranged on the supporting plate (1) and used for abutting against the left side of the workpiece (8), and a right stop block (4) arranged on the right side of the workpiece (8) and arranged on the supporting plate (1), wherein the top surface of the supporting plate (1) is flush with the top surface of a bending lower die (9), and one end, close to the workpiece (8), of the rear stop block (2) is provided with a transversely arranged cylindrical surface.

2. The positioning device for a bending machine according to claim 1, wherein: the rear stop block (2) is connected with a roller (21) used for forming the cylindrical surface, and the roller (21) can rotate around the axis of the roller.

3. The positioning device for a bending machine according to claim 1, wherein: the rear stop block (2) is connected with the support plate (1) in a sliding mode, the rear stop block (2) is locked on the support plate (1) through a fastening piece, and the front sides of the left stop block (3) and the right stop block (4) are respectively flush with the rear side of the bending lower die (9).

4. The positioning device for a bending machine according to claim 3, wherein: the left check block (3) and the right check block (4) are respectively in sliding connection with the support plate (1), and the left check block (3) and the right check block (4) are respectively locked on the support plate (1) through fasteners.

5. The positioning device for a bending machine according to claim 4, wherein: the supporting plate (1) is provided with a longitudinal guide rail (6) used for being connected with the rear stop block (2), and the supporting plate (1) is provided with a transverse guide rail (7) used for being connected with the left stop block (3) and the right stop block (4).

6. The positioning device for a bending machine according to any one of claims 1 to 5, wherein: one end of the left stop block (3) close to the workpiece (8) is provided with a left arc opening (31) for guiding the workpiece (8) to the processing position, and one end of the right stop block (4) close to the workpiece (8) is provided with a right arc opening (41) for guiding the workpiece (8) to the processing position.