CN218425011U

CN218425011U - Sheet metal flanging die

Info

Publication number: CN218425011U
Application number: CN202222660216.3U
Authority: CN
Inventors: 王红召; 刘斌
Original assignee: SUZHOU DONGWANG SHEET METAL CO Ltd
Current assignee: SUZHOU DONGWANG SHEET METAL CO Ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-02-03
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a metal plate flanging die, which comprises an upper die, a lower die and a stamping mechanism for driving the upper die to lift; an arc-shaped convex block protruding out of the lower surface of the upper die is formed at the bottom of the upper die, and the convex block is matched with an arc-shaped groove formed at the top of the lower die; a punching core penetrates through the upper die and the lower die and applies acting force to the sheet metal part placed between the upper die and the lower die to form a flanging; the upper die is connected with the punching core through an elastic connecting piece, and the elastic connecting piece drives the punching core to automatically reset. The beneficial effects of the utility model are embodied in: the V-shaped convex blocks and the grooves play a role in guiding the upper die and the lower die in the die closing process, so that the upper die and the lower die are effectively prevented from being dislocated during die closing; and the die assembly is not needed to be carried out through the guide post in the die assembly process, so that the manufacturing cost of the equipment is reduced.

Description

Sheet metal flanging die

Technical Field

The utility model belongs to the technical field of the sheet metal processing technique and specifically relates to a panel beating turn-ups mould is related to.

Background

The sheet metal, a processing technology, has not had a more complete definition so far, according to a definition on a certain professional journal abroad, can define it as: the sheet metal is a comprehensive cold processing technology for sheet metal, and comprises shearing, punching/cutting/compounding, folding, riveting, splicing, forming and the like.

In the prior art, for example, a patent of 'sheet metal bending die and bending machine' proposed in chinese patent CN202020576998.0 proposes a flanging die applied to sheet metal parts. In the prior art, an additional material pressing block is needed to fix the placing position of the sheet metal part in the flanging processing process, the upper die and the lower die are matched, and the sheet metal part is subjected to flanging operation after the upper die and the lower die are matched, so that the production and manufacturing cost of the die is improved, and the position stability of the material pressing block is also needed to be ensured in the processing process, so that the use is inconvenient; in addition, the die has no reset equipment after die assembly, so that the bending punch in the die cannot be immediately demolded with the bending forming groove in the lower die after the sheet metal part is machined and formed, and an external punching mechanism is required to drive the upper die to move upwards and then demold to take out a workpiece; if external punching press mechanism contact is bad, then can cause to bend and dash the contact with the sheet metal component for a long time, cause the unfavorable condition that the sheet metal component transition was bent, and this kind of operation will reduce work efficiency to a certain extent.

In order to solve the problems, the design of a sheet metal flanging die is an important technical problem to be solved by technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a panel beating turn-ups mould in order to solve the above-mentioned problem that exists among the prior art.

The purpose of the utility model is realized through the following technical scheme:

a metal plate flanging die comprises an upper die, a lower die and a stamping mechanism for driving the upper die to lift; an arc-shaped convex block protruding out of the lower surface of the upper die is formed at the bottom of the upper die, and the convex block is matched with an arc-shaped groove formed at the top of the lower die; a punching core penetrates through the upper die and the lower die and applies acting force to the sheet metal part placed between the upper die and the lower die to form a flanging; the upper die is connected with the punching core through an elastic connecting piece, and the elastic connecting piece drives the punching core to automatically reset.

Preferably, the curvature of the arc curved surface of the bump is 0.037 +/-0.003; the curvature of the arc curved surface of the groove is 0.038 +/-0.002.

Preferably, the upper die is provided with a mounting hole for placing an elastic connecting piece, one end of the elastic connecting piece is arranged in the mounting hole, and the other end of the elastic connecting piece is connected with the punching core.

Preferably, the punch core comprises a pressing part, a connecting part and a punching part which are integrally arranged; the pressing part is connected with an external punching mechanism, and the punching mechanism applies downward acting force to the punching core; the connecting part is connected with the pressing part and the punching part and is arranged perpendicular to the pressing part and the punching part; the top end of the elastic connecting piece is connected with the connecting part.

Preferably, the stamping part penetrates through the upper die and the lower die, and smooth transition is adopted between the stamping part and the pressing part.

Preferably, the sum of the lengths of the upper die and the lower die corresponds to the length of the punch.

Preferably, a set of one-to-one corresponding positioning holes are further formed in the upper die and the lower die, and the positioning holes are penetrated through by positioning pins and used for limiting the upper die and the lower die after the upper die and the lower die are assembled.

Preferably, a limiting block extends downwards from the bottom of the lower die, the limiting block is arranged in the center along the width direction of the lower die, and the length of the limiting block is consistent with that of the lower die; a through hole which is convenient for the punching part to penetrate through is formed on the limiting block; the both sides joint of stopper is on the mount pad.

The utility model discloses technical scheme's advantage mainly embodies:

the V-shaped convex blocks and the grooves play a role in guiding the upper die and the lower die in the die closing process, so that dislocation between the upper die and the lower die is effectively avoided during die closing; the upper die and the lower die are closed, and then the two side walls of the sheet metal part are tightly pressed, so that a pressing block is not required to be additionally arranged to stabilize the position of the sheet metal part, the manufacturing cost of equipment is reduced, and the processing efficiency is improved;

the upper die is connected with the punching core through the elastic connecting piece, and the punching core is driven by the elastic connecting piece to reset at the first time after the flanging operation of the sheet metal part is finished, so that the deformation of the sheet metal part caused by overlong acting force applied to the sheet metal part is effectively avoided, the processing quality of the sheet metal part is further ensured, and the processing speed is improved;

the lower die is placed on the mounting seat, the position of the lower die is limited by the limiting block, the position of the lower die is guaranteed not to shake in the machining process, and the stability of the machining process is guaranteed.

Drawings

FIG. 1: the utility model discloses the first state of the preferred embodiment partially hides the stereogram;

FIG. 2 is a schematic diagram: the first state partially hidden front view of the preferred embodiment of the present invention;

FIG. 3: the utility model discloses a perspective view of a first state of a preferred embodiment;

FIG. 4 is a schematic view of: a second state perspective view of the preferred embodiment of the present invention;

FIG. 5 is a schematic view of: a second state elevation of the preferred embodiment of the present invention;

FIG. 6: the utility model discloses the top view of preferred embodiment.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are merely exemplary embodiments for applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent substitutions or equivalent changes fall within the scope of the present invention.

In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

As shown in fig. 1 to 6, the utility model discloses a panel beating turn-ups mould, including last mould 1 and lower mould 2 and drive go up the punching press mechanism that mould 1 goes up and down. Since the punching mechanism can be a punching machine disclosed in the prior art, the structure thereof will not be described herein. As shown in fig. 1 or fig. 4, a set of positioning holes 102 corresponding to one another is further disposed on the upper die 1 and the lower die 2, and the positioning holes 102 are penetrated by positioning pins and limit the upper die 1 and the lower die 2 after being closed. The utility model discloses in preferably go up mould 1 with be provided with on two diagonal angles of lower mould 2 locating hole 102, of course the position and the quantity of locating hole 102 also can be adjusted according to the user demand, do not do the injecion here.

As shown in fig. 4, an arc-shaped protrusion 10 protruding from the lower surface of the upper mold 1 is formed at the bottom of the upper mold 1, and the protrusion 10 is matched with an arc-shaped groove 20 formed at the top of the lower mold 2. In the present invention, the curvature of the arc-shaped curved surface of the bump 10 is preferably set to 0.037 ± 0.003; the curvature of the arc-shaped curved surface of the groove 20 is preferably set to 0.038 ± 0.002. Of course, in other embodiments, the curvature of the arc-shaped curved surfaces of the protrusion 10 and the groove 20 can be adjusted. The shapes of the lug 10 and the groove 20 are preferably V-shaped in the utility model, and the upper die 1 and the lower die 2 play a guiding role through the V-shaped lug 10 and the groove 20 in the die assembly process, thereby effectively avoiding the dislocation between the upper die 1 and the lower die 2 during die assembly; and the die is not required to be closed through a guide post in the die closing process.

As shown in fig. 1 to 2, an installation hole 201 for placing an elastic connecting piece 4 is formed in the upper die 1, one end of the elastic connecting piece 4 is disposed in the installation hole 201, and the other end of the elastic connecting piece 4 is connected to the punch core 3. The elastic connecting member 4 of the present invention may be a spring or other component with elastic function disclosed in the prior art, which is not limited herein.

As shown in fig. 4 to 5, a punching core 3 penetrates through the upper die 1 and the lower die 2, and applies an acting force to the sheet metal part placed between the upper die 1 and the lower die 2 to form a flanging; the upper die 1 is connected with the punching core 3 through an elastic connecting piece 4, and the elastic connecting piece 4 drives the punching core 3 to automatically reset. Specifically, as shown in fig. 2, the core punch 3 includes a pressing portion 31, a connecting portion 32, and a punching portion 33, which are integrally provided. A downward force is applied to the pressing portion 31, so that the punch core 3 moves downward as a whole.

As shown in fig. 4, the connecting portion 32 connects the pressing portion 31 and the punching portion 33, and is disposed perpendicular to both; the top end of the elastic connecting piece 4 is connected with the connecting part 32. The punching part 33 penetrates through the upper die 1 and the lower die 2, and a smooth transition is adopted between the punching part 33 and the pressing part 31. The sum of the lengths of the upper die 1 and the lower die 2 corresponds to the length of the punch 33.

In the first state, the upper die 1 and the lower die 2 are attached to each other, that is, the upper die 1 and the lower die 2 are closed to each other, at this time, the punching core 3 moves downwards under the action of the punching mechanism until the punching part 33 is completely pressed into the through hole of the lower die 2, the action of the punching mechanism is greater than the elastic force of the elastic connecting part 4, the connecting part 32 is tightly attached to the upper surface of the upper die 1, and then the end part of the sheet metal part placed between the upper die 1 and the lower die 2 is flanged; in a second state, the upper die 1 and the lower die 2 are separated, that is, the two dies are not closed, at this time, the punching part 33 of the punching core 3 is at least partially inserted into the through hole of the upper die 1, and the connecting part 32 is located above the upper die 1 under the action of the elastic connecting piece 4, and the two dies are not in contact with each other.

Further, as shown in fig. 3, a limiting block 202 extends downward from the bottom of the lower mold 2, and the limiting block 202 is centrally disposed along the width direction of the lower mold 2 and has a length equal to that of the lower mold 2. In addition, a through hole for the punching part 33 to penetrate is formed on the limiting block 202. The both sides joint of stopper 202 is in on mount pad 5, lower mould 2 place in on mount pad 5, and by stopper 202 will the position restriction of lower mould 2 guarantees in the course of working the position of lower mould 2 can not rock, and then guarantees the stability of course of working.

The following brief description is the working process of the utility model:

s1, driving an upper die 1 to move upwards by a stamping mechanism until the upper die 1 is separated from a lower die 2;

s2, placing a sheet metal part to be processed on the lower die 2, wherein the end part of the sheet metal part is positioned at the through hole of the lower die 2 and does not completely cover the through hole;

s3, the stamping mechanism drives the upper die 1 to move downwards until the convex block 10 of the upper die 1 is attached to the groove of the lower die 2; meanwhile, the sheet metal part is pressed at the bottom end of the elastic connecting piece 4;

s4, inserting a positioning pin into the positioning hole 102 of the upper die 1 and penetrating through the upper die 1 and the lower die 2;

s5, a manipulator or a worker applies downward acting force to the punching core 3, so that the punching part 33 of the punching core 3 applies downward acting force to the end part of the sheet metal part until the end part of the sheet metal part is bent to form a flanging, and the bottom of the punching part 33 is positioned in the lower die 2;

and S6, the punching core 3 resets under the acting force of the elastic connecting piece 4, and the punching mechanism drives the upper die 1 to reset.

Before step S1, the upper die 1 may be driven by the press mechanism to move downward until the upper die 1 and the lower die 2 are clamped, and this operation is used to perform clamping correction on the upper die 1 and the lower die 2.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims

1. A sheet metal flanging die comprises an upper die (1), a lower die (2) and a stamping mechanism for driving the upper die (1) to lift; the method is characterized in that: an arc-shaped convex block (10) protruding out of the lower surface of the upper die (1) is formed at the bottom of the upper die (1), and the convex block (10) is matched with an arc-shaped groove (20) formed at the top of the lower die (2); a punching core (3) penetrates through the upper die (1) and the lower die (2) and applies acting force to a sheet metal part placed between the upper die (1) and the lower die (2) to form a flanging; the upper die (1) is connected with the punching core (3) through an elastic connecting piece (4), and the elastic connecting piece (4) drives the punching core (3) to automatically reset.

2. The sheet metal flanging die of claim 1, characterized in that: the curvature of the arc-shaped curved surface of the bump (10) is 0.037 +/-0.003; the curvature of the arc-shaped curved surface of the groove (20) is 0.038 +/-0.002.

3. The sheet metal flanging die of claim 2, characterized in that: the die is characterized in that a mounting hole (201) for placing the elastic connecting piece (4) is formed in the upper die (1), one end of the elastic connecting piece (4) is arranged in the mounting hole (201), and the other end of the elastic connecting piece is connected with the punching core (3).

4. The sheet metal flanging die of claim 3, characterized in that: the punching core (3) comprises a pressing part (31), a connecting part (32) and a punching part (33) which are integrally arranged; the pressing part (31) is connected with an external punching mechanism, and the punching mechanism applies downward acting force to the punching core (3); the connecting part (32) is connected with the pressing part (31) and the punching part (33) and is arranged perpendicular to the pressing part and the punching part; the top end of the elastic connecting piece (4) is connected with the connecting part (32).

5. The sheet metal flanging die of claim 4, characterized in that: the punching part (33) penetrates through the upper die (1) and the lower die (2), and smooth transition is adopted between the punching part (33) and the pressing part (31).

6. The sheet metal flanging die of claim 5, characterized in that: the sum of the lengths of the upper die (1) and the lower die (2) is equivalent to the length of the punching part (33).

7. The sheet metal flanging die of claim 6, characterized in that: the die is characterized in that a group of positioning holes (102) which correspond to one another are further formed in the upper die (1) and the lower die (2), the positioning holes (102) are penetrated through by positioning pins, and the upper die (1) and the lower die (2) are limited after being closed.

8. The sheet metal flanging die of claim 7, characterized in that: a limiting block (202) extends downwards from the bottom of the lower die (2), the limiting block (202) is arranged in the middle along the width direction of the lower die (2), and the length of the limiting block is consistent with that of the lower die (2); a through hole which is convenient for the punching part (33) to penetrate through is formed on the limiting block (202); the two sides of the limiting block (202) are clamped on the mounting seat (5).