CN215355732U

CN215355732U - Turning plate bending die

Info

Publication number: CN215355732U
Application number: CN202121102718.3U
Authority: CN
Inventors: 钱忠
Original assignee: Dongguan Mingrui Precision Hardware Technology Co ltd
Current assignee: Dongguan Mingrui Precision Hardware Technology Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-31
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a flap bending die which comprises an upper die and a lower die which are matched, wherein a punch is arranged on the upper die; a bending insert capable of bearing a material piece is arranged below the punch on the lower die; the bending insert is rotatably connected with more than one turning plate at the bottom end part of the material part: one end of each turning plate vertically extends to the X-shaped outer side of the material piece and is arranged right below the punch, and the other end of each turning plate horizontally extends to the Y-shaped outer side of the material piece; the punch can push the material part to bend and deform, and synchronously push each turning plate to rotate and tilt so as to be attached to the bent end part of the material part. According to the utility model, the bending insert and the turning plate are arranged on the lower die, so that the turning plate can be extruded to turn upwards while a material part is pressed, the turning plate is always in contact with the surface of the material part in the bending process of the material part, the bad phenomena of scratching, scraping and the like on the material part due to single-point contact can be avoided, and the bending yield is improved.

Description

Turning plate bending die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a flap bending die.

Background

The metal bending process is generally performed by punching the metal by a punching die on a punching machine. The contact area between the workpiece and the bending insert is small when the traditional bending die is used for production, and poor defects such as bending indentation or scratch caused by scratching the workpiece are easily caused.

In conclusion, the utility model provides a novel turnover plate bending die, in the stamping process, turnover plates on two sides of a workpiece are reversely installed after being stressed, contact with the whole side face of the workpiece is kept, bending traces caused by single-point contact can be avoided, bending edges on two sides are protected, and scratches are avoided.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a turning plate bending die, wherein a bending insert and a turning plate are arranged on a lower die, the turning plate can be extruded to turn upwards while a material part is pressed, so that the turning plate is always kept in contact with the surface of the material part in the bending process of the material part, the bad phenomena of scratching, scraping and the like on the material part due to single-point contact are avoided, and the bending yield is improved.

In order to solve the technical problems, the utility model adopts a technical scheme as follows:

a flap bending die comprises an upper die and a lower die which are matched, wherein a punch is arranged on the upper die; a bending insert capable of bearing a material piece is arranged below the punch on the lower die; the bending insert is rotatably connected with more than one turning plate at the bottom end part of the material part: one end of each turning plate vertically extends to the X-shaped outer side of the material piece and is arranged right below the punch, and the other end of each turning plate horizontally extends to the Y-shaped outer side of the material piece; the punch can push the material part to bend and deform, and synchronously push each turning plate to rotate and tilt so as to be attached to the bent end part of the material part.

As a further elaboration of the above technical solution:

in the technical scheme, the bending insert comprises a plurality of first plates extending along the X direction and a plurality of second plates extending along the Y direction, and each second plate is provided with a first rotating piece; the two first plates and the two second plates jointly enclose a placing area matched with the material piece.

In the above technical solution, each of the flaps includes a disk-shaped rotating portion and a horizontal attaching portion: the rotating part is provided with a second rotating part which can be matched with the first rotating part, and the X-direction central axis of the second rotating part and the first distance of the fitting part are between 1 time and 1.5 times of the thickness of the material part.

In the above technical solution, a side end surface of the punch for bending does not exceed a Z-direction central axis of the second rotating member.

In the technical scheme, the lower die comprises a lower die base and a lower die plate, and the bending insert is detachably and fixedly arranged on the lower die plate.

In the technical scheme, the upper die is provided with a plurality of upper guide pieces, and the lower die plate is provided with a plurality of lower guide pieces which are matched with the upper guide pieces one by one.

Compared with the prior art, the utility model has the beneficial effects that: through install the mold insert of bending on the lower mould and turn over the board, can extrude when material spare pressurized and turn over the board and upwards overturn for turn over the board and keep all the time with material spare face contact to material spare in-process of buckling, can avoid forming the scotch because of the single point contact on the material spare, scrape bad phenomenon such as flower, promote the yields of bending.

Drawings

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

FIG. 2 is a schematic top view of the lower mold plate in operation according to the present embodiment;

FIG. 3 is a schematic top view of the discharge member of FIG. 2;

FIG. 4 is a schematic top view of the flap of FIG. 3;

FIG. 5 is a schematic side view of the turning plate of the present embodiment;

FIG. 6 is a schematic structural view before bending in the present embodiment;

fig. 7 is a schematic view of the bent structure of the present embodiment.

In the figure:

10. an upper die; 11. punching; 12. an upper guide; 20. a lower die; 21. bending the insert; 22. turning over a plate; 23. a lower die holder; 24. a lower template; 25. a lower guide; 30. material parts; 1. a first plate; 2. a second plate; 3. a first rotating member; 4. a rotating part; 5. a bonding section; 6. a second rotating member; A. a side end face; D. a first distance.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-2, a flap bending die comprises an upper die 10 and a lower die 20 which are matched, wherein a punch 11 is arranged on the upper die 10; a bending insert 21 capable of bearing the material part 30 is arranged below the punch 11 on the lower die 20; the bending insert 21 is rotatably connected with more than one turning plate 22 at the bottom end part of the material part 30: one end of each turning plate 22 vertically extends to the outside X of the material piece 30 and is arranged right below the punch 11, and the other end horizontally extends to the outside Y of the material piece 30; the punch 11 can push the material to bend and deform, and synchronously push each turning plate 22 to rotate and tilt so as to attach the bent end of the material 30.

Specifically, as shown in fig. 3, in the present embodiment, the bending insert 21 includes a plurality of first plates 1 extending along the X direction and a plurality of second plates 2 extending along the Y direction, and each second plate 2 is provided with a first rotating member 3; the two first plates 1 and the two second plates 2 together enclose a placement area adapted to the material piece 30.

In particular, as shown in fig. 4-5, in the present embodiment, each flap 22 comprises a disk-shaped rotating portion 4 and a horizontal abutment 5: the rotating part 4 is provided with a second rotating member 6 which can be adapted to the first rotating member 3.

In this embodiment, the first and second rotating

members

3 and 6 are matching rotating shafts and synchronizing slots.

As shown in fig. 6-7, in order to ensure that the flap 22 does not interfere with the material 30 during the turning process, the first distance D between the central axis X of the second rotating member 6 and the abutting portion 5 is between 1 and 1.5 times the thickness of the material 30. The first distance D can avoid deformation and scratches caused by the fact that the material piece 30 is extruded by the turning plate 22 in the bending process, and can ensure that the end face of the attaching part 5 is close to the end face of the bent material piece 30 as far as possible, so that bending marks are avoided or reduced.

Meanwhile, in order to ensure that the rotating portion 4 can be smoothly turned over after being pressed, a side end surface a for bending of the punch 11 does not exceed the Z-direction central axis of the second rotating element 6. In this embodiment, the side end surface a coincides with the central axis in the Z direction, so that a downward pressure is not applied to the bending insert 21 through the turning plate 22, and the bending insert 21 is not only prevented from being deformed by pressure, but also the bending accuracy is not affected by the dislocation of the material 30 on the bending insert 21.

During operation, the punch 11 is pressed down, and the side end face a of the punch touches the turning plate 22 and the material piece 30 and exerts the same pressure thereon: on one hand, the rotating part 4 of the turnover plate 22 is pushed to move downwards, so that the rotating part 4 rotates by taking the first rotating piece 3 as an axis, and the attaching part 5 at the other end is driven to move upwards; on the other hand, the material 30 is pushed downwards synchronously, the material 30 is pushed to bend under the combined action of the bending insert 21, the upper end face of the attaching part 5 of the turning plate 22 is attached to the lower end face of the bending end part of the material 30 synchronously, and bending marks caused by single-point or local contact can be avoided.

As shown in fig. 1-2, the lower mold 20 includes a lower mold base 23 and a lower mold plate 24, and the bending insert 21 is detachably fixed on the lower mold plate 24; the upper die 10 is provided with a plurality of upper guide members 12, and the lower die plate 24 is provided with a plurality of lower guide members 25 which are matched with the upper guide members 12 one by one.

In the present embodiment, the upper guide 12 and the lower guide 25 are matched guides, guide pillars and guide sleeves, but the technical scope of the present invention is not limited thereto, and any modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are still within the technical scope of the present invention.

Claims

1. A turning plate bending die comprises an upper die and a lower die which are matched, and is characterized in that a punch is arranged on the upper die; a bending insert capable of bearing a material piece is arranged below the punch on the lower die; the bending insert is rotatably connected with more than one turning plate at the bottom end part of the material part: one end of each turning plate vertically extends to the X-shaped outer side of the material piece and is arranged right below the punch, and the other end of each turning plate horizontally extends to the Y-shaped outer side of the material piece; the punch can push the material part to bend and deform, and synchronously push each turning plate to rotate and tilt so as to be attached to the bent end part of the material part.

2. The flap bending die according to claim 1, wherein the bending insert comprises a plurality of first plates extending along the X direction and a plurality of second plates extending along the Y direction, and each second plate is provided with a first rotating member; the two first plates and the two second plates jointly enclose a placing area matched with the material piece.

3. A flap bending die according to claim 2, wherein each flap comprises a disk-shaped rotating part and a horizontal attachment part: the rotating part is provided with a second rotating part which can be matched with the first rotating part, and the X-direction central axis of the second rotating part and the first distance of the fitting part are between 1 time and 1.5 times of the thickness of the material part.

4. The flap bending die according to claim 3, wherein a side end surface of the punch for bending does not exceed a Z-direction central axis of the second rotating member.

5. The plate-turning bending die according to any one of claims 1 to 4, wherein the lower die comprises a lower die base and a lower die plate, and the bending insert is detachably fixed on the lower die plate.

6. The flap bending die according to claim 5, wherein a plurality of upper guides are provided on the upper die, and a plurality of lower guides adapted to the upper guides are provided on the lower die plate.