CN218903317U

CN218903317U - Bending mechanism without gap in bending

Info

Publication number: CN218903317U
Application number: CN202320070798.1U
Authority: CN
Inventors: 陈信孜; 姚凯宁
Original assignee: KUNSHAN JIASHENG PRECISION ELECTRONIC INDUSTRY CO LTD
Current assignee: KUNSHAN JIASHENG PRECISION ELECTRONIC INDUSTRY CO LTD
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-04-25
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of dies, in particular to a bending mechanism without gaps in bending. The die comprises an upper die, a lower die, a pre-bending assembly and a bending assembly, wherein the pre-bending assembly is arranged between the upper die and the lower die and comprises a pre-bending punch head arranged on the upper die, a pre-bending lower die inlet block arranged below the lower die and corresponding to the pre-bending punch head, a bending inclined angle is formed at a punching end of the pre-bending punch head, a profiling groove which is used for accommodating a stamping part and is bent by matching the bending inclined angle is formed in the pre-bending lower die inlet block, an avoidance groove used for matching with punching of the pre-bending punch head is further formed in the pre-bending lower die inlet block, and a bump used for matching the avoidance groove is further arranged on the pre-bending punch head. The utility model has the advantages that: according to the technical scheme, the bending assembly is performed after the pre-bending assembly, so that the bending quality of the stamping part is greatly improved.

Description

Bending mechanism without gap in bending

Technical Field

The utility model relates to the technical field of dies, in particular to a bending mechanism without gaps in bending.

Background

The mould (m, muu) is used for producing various moulds and tools for injection moulding, blow moulding, extrusion, die casting or forging, smelting, stamping and other methods to obtain the required products in industrial production. In short, a mold is a tool used to make a molded article, which is made up of various parts, with different molds being made up of different parts. The processing of the appearance of the article is realized mainly by changing the physical state of the formed material. The term "industrial mother" is used.

Referring to fig. 1, fig. 1 is a bending structure of a bending member in the prior art, and the conventional bending structure is formed by bending at one time, but in the bending process in the prior art, a gap is left after the bending, and if the material is a stainless steel product, the punch is easily worn out, so that the accuracy of punching and bending is affected, the punch needs to be replaced at random, and the cost is increased.

Disclosure of Invention

The utility model aims to provide a bending mechanism without gaps in bending so as to overcome the defects in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a mechanism of bending of no clearance, its include the mould, with go up the lower mould that corresponds the setting down of mould, set up in the subassembly of bending in advance between last mould and the lower mould, the subassembly of bending in advance including set up in the punch of bending in advance of last mould, set up in the lower mould and with the punch of bending in advance go up the lower mould of bending in advance correspond the lower mould of bending and go into the piece of bending in advance that the setting up down, the angle of inclination of bending has been seted up to the punching press end of bending in advance, the cooperation angle of inclination of bending is seted up on the lower mould of bending in advance and is bent and be used for holding the profile modeling recess of stamping workpiece still be provided with on the lower mould of bending in advance and be used for the cooperation punch die-cut of bending in advance and use dodge the groove, still be provided with the lug that is used for the cooperation to dodge the groove on the punch of bending in advance.

Preferably, the inclination angle of the bending inclination angle is between 30 and 75 degrees.

Preferably, the bending assembly comprises a bending punch head arranged on the upper die, a first lower die inlet block and a second lower die inlet block arranged on the lower die, the first lower die inlet block and the second lower die inlet block are spliced left and right and arranged in the lower die, the first lower die inlet block is higher than the second lower die inlet block, a profiling groove for matching with stamping parts for stamping is formed on the upper surface of the first lower die inlet block and the upper surface of the second lower die inlet block, the bending punch head corresponds to the second lower die inlet block, and the stamping end of the bending punch head is a plane.

Preferably, the profiling groove is connected with the avoidance groove in a left-right mode, and the groove depth of the avoidance groove is greater than that of the profiling groove.

The beneficial effects of the utility model are as follows: according to the technical scheme, the bending assembly is firstly carried out through the pre-bending assembly, compared with the prior art, the pre-bending punch head is provided with the bending inclination angle, the stamping part is firstly bent, the stamping part cannot be bent at one time, the service life of the pre-bending punch head is prolonged, the secondary bending is carried out through the bending punch head, the stamping part is directly reversely bent and flattened, the stamping part is attached to the other side of the stamping part without gaps, the stamping end of the bending punch head is a plane, therefore, the stamping part can be bent, the leveling effect of the stamping part is achieved, and the bending quality of the stamping part is greatly improved.

Drawings

FIG. 1 is a schematic view of a prior art process configuration;

FIG. 2 is a schematic structural view of a bending mechanism without gaps in bending according to the present utility model;

FIG. 3 is a top view of a gapless bending mechanism of the present utility model;

FIG. 4 is a schematic diagram of a pre-bending assembly of a gapless bending mechanism of the present utility model;

FIG. 5 is a schematic diagram of a gapless bending mechanism of the present utility model;

in the figure: 1. an upper die; 2. a lower die; 3. a pre-bending assembly; 4. a bending assembly; 31. pre-bending the punch; 32. pre-bending the lower die insert block; 33. bending and inclination angles; 34. profiling grooves; 35. an avoidance groove; 36. a bump; 41. bending the punch; 42. a first lower molding block; 43. a second lower mold insert; 44. a simulated groove; 5. stamping.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 5, a bending mechanism without gaps in bending comprises an upper die 1, a lower die 2, a pre-bending assembly 3 and a bending assembly 4, wherein the lower die 2 is arranged correspondingly below the upper die 1, the pre-bending assembly 3 and the bending assembly 4 are arranged between the upper die 1 and the lower die 2, the pre-bending assembly 3 comprises a pre-bending punch head 31 arranged on the upper die 1, a pre-bending lower die-in block 32 arranged correspondingly below the lower die 2 and the pre-bending punch head 31, a bending inclined angle 33 is formed at the punching end of the pre-bending punch head 31, a profiling groove 34 which is used for accommodating a punching part and is bent in cooperation with the bending inclined angle 33 is formed in the pre-bending lower die-in block 32, a punching groove 35 used in cooperation with the pre-bending punch head 31 is further formed in the pre-bending lower die-in block 32, and a bump 36 used in cooperation with the avoiding groove 35 is further formed in the pre-bending punch head 31;

the inclination angle of the bending inclination angle 33 is 30-75 degrees, and can be adjusted according to the requirement of stamping part materials, and the angle of the bending is pre-bent.

The bending assembly 4 comprises a bending punch 41 arranged on the upper die 1, a first lower die entering block 42 and a second lower die entering block 43 arranged on the lower die 2, the first lower die entering block 42 and the second lower die entering block 43 are spliced left and right in the lower die 2, the first lower die entering block 42 is higher than the second lower die entering block 43, a profiling groove 44 for matching with stamping parts for stamping is formed on the upper surface of the first lower die entering block 42 and the upper surface of the second lower die entering block 43, the bending punch 41 corresponds to the second lower die entering block 43, and the stamping end of the bending punch 41 is a plane.

The profiling groove 34 is connected with the avoidance groove 35 in a left-right manner, and the groove depth of the avoidance groove 35 is greater than that of the profiling groove 34. The profiling groove 34 is used for storing stamping parts, the avoiding groove 35 is used for avoiding and accommodating redundant pre-bending punches, and the groove depth of the avoiding groove 35 is deeper than that of the profiling groove 34 due to the design of the pre-bending punches and the bending requirement.

In this embodiment, the pre-bending assembly 3 and the bending assembly 4 are disposed between the upper die 1 and the lower die 2, and the pre-bending assembly 3 is disposed in front of the bending assembly 4, because three positions on the stamping part 5 are subjected to bending processing, the pre-bending assembly 3 and the bending assembly 4 are all horizontally arranged in parallel to form three groups and are used for being matched with the three positions of the stamping part 5 to bend, the stamping part 5 is placed on a conveying device, the conveying device is disposed between the upper die and the lower die, the stamping part 5 is conveyed by the conveying device to be moved to the pre-bending assembly 3 (or is manually and directly placed at the position of the pre-bending assembly 3) to be matched with the profiling groove 34 for placement, the die is clamped, the pre-bending punch 31 is pressed down, the bending inclination angle 33 is pressed against the stamping part 5 and turned over, the stamping part is turned over to 45 degrees, the stamping part is reset after the bending, the stamping part is continuously conveyed and moved to the lower part 4, and is disposed in the profiling groove 44, the die is clamped again, the counter-folded by the bending punch 41, the counter-folded by 90 degrees, and the bottom punch is flattened, so that the stamping part is flattened, and a product is free of space, and the stamping end of the stamping part is folded and the stamping end is simultaneously.

Compared with the prior art, the pre-bending punch adopts the bending inclination angle, the stamping part is bent at first, and cannot be bent once, so that the service life of the pre-bending punch is prolonged, secondary bending is performed through the bending punch, the stamping part is directly reversely bent and flattened, the stamping part is attached to the other side of the stamping part without gaps, the stamping end of the bending punch is a plane, and therefore, the stamping part can be bent, the leveling effect is achieved, and the bending quality of the stamping part is greatly improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a mechanism of bending of no clearance, its include go up the mould, with go up the lower mould that corresponds the setting down of mould, set up in go up the subassembly of bending and the subassembly of bending in advance between mould and the lower mould, its characterized in that: the pre-bending assembly comprises a pre-bending punch head arranged on the upper die, a pre-bending lower die entering block arranged below the lower die and corresponding to the pre-bending punch head, a bending inclined angle is formed at the punching end of the pre-bending punch head, a profiling groove which is used for accommodating the stamping part and is bent in a matched bending inclined angle is formed in the pre-bending lower die entering block, an avoidance groove which is used for being matched with punching of the pre-bending punch head is further formed in the pre-bending lower die entering block, and a bump which is used for being matched with the avoidance groove is further formed in the pre-bending punch head.

2. A gapless bending mechanism as defined in claim 1 wherein: the inclination angle of the bending inclination angle is between 30 and 75 degrees.

3. A gapless bending mechanism as defined in claim 1 wherein: the assembly of bending including set up in the drift of bending of last mould, set up in first lower mould of lower mould goes into the piece and the second lower mould goes into the piece, first lower mould go into the piece with the second lower mould go into the piece about splice set up in the lower mould, just first lower mould go into the piece and be higher than the second lower mould goes into the piece setting, first lower mould go into the piece with second lower mould go into the upper surface and form the profile modeling groove that is used for the cooperation stamping workpiece punching press, the drift of bending corresponds the second lower mould goes into the piece setting, just the punching press end of drift of bending is the plane.

4. A gapless bending mechanism as defined in claim 1 wherein: the profiling grooves are connected with the avoidance grooves in a left-right mode, and the groove depth of the avoidance grooves is larger than that of the profiling grooves.