CN209953638U

CN209953638U - Adjustable Z-shaped offset bending die

Info

Publication number: CN209953638U
Application number: CN201920539197.4U
Authority: CN
Inventors: 陈太学; 沈雷亮; 汪友禄
Original assignee: Suzhou Guixiang Precision Machinery Co Ltd
Current assignee: Suzhou Guixiang Precision Machinery Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-01-17
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses an adjustable Z-shaped offset bending die, which comprises a lower die and an upper die, wherein the lower die is provided with a lower groove for accommodating a lower stop block, and the lower stop block can be driven by a lower adjusting bolt arranged on the lower die to slide in the lower groove; the lower die is also provided with an upper top, one end of the upper top close to the lower stop block is an arc chamfer, the other end of the upper top is a first bevel edge, and the first bevel edge is parallel to a second bevel edge of the lower stop block; an upper groove for accommodating an upper stop block is formed in the upper die, and the upper stop block is driven to slide in the upper groove by an upper adjusting bolt arranged on the upper die; the upper die is also provided with a lower pressing part with a sharp corner, a third bevel edge positioned on the outer side of the lower pressing part is parallel to a fourth bevel edge positioned on the upper stop block, and the lower pressing part is positioned between the lower stop block and the upper top. The utility model discloses mainly appear: the die can be self-adaptive to metal plates of different specifications, can be universal, reduces the use cost of the die, and simultaneously improves the service life of the die and the bending quality of the Z-shaped workpiece.

Description

Adjustable Z-shaped offset bending die

Technical Field

The utility model relates to a technique of taking shape of bending to low rigidity material particularly, especially relates to a Z shape is disconnected poor mould of bending with adjustable.

Background

In the prior art, when the zigzag bending height of the metal plate is less than 4 times of the material thickness of the metal plate, a common method is to customize a forming die on a bending machine at one time, and special dies with various specifications are often required to be manufactured due to the change of the material thickness and the zigzag height, so that the proportion of the die cost is too high under the condition of small processing amount.

Chinese patent CN203556685U discloses an adjustable sheet metal bending device, which comprises a square block-shaped forming base, wherein the forming base is provided with a detachable long-strip-shaped adjusting base, the forming base is provided with a pair of parallel adjusting long holes and a V-shaped forming notch, two ends of the adjusting base are respectively provided with an adjusting through hole, and a locking screw penetrates through the adjusting through hole and the adjusting long hole. According to the adjustable sheet metal bending device, a user can change the punching bending position on the connecting piece as required by utilizing a stack of adjusting long holes on the forming base station and adjusting through holes on the adjusting base station. But the V-shaped structure is fixed and unchanged, and the bending distance of the sheet metal part on the V-shaped structure of the sheet metal part is changed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art existence, provide a Z shape is disconnected poor mould of bending with adjustable.

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

an adjustable Z-shaped offset bending die comprises a lower die and an upper die, wherein a lower groove used for accommodating a lower stop block is formed in the lower die, and the lower stop block can be driven to slide in the lower groove by a lower adjusting bolt arranged on the lower die; the lower die is also provided with an upper top part, the top end of the surface of the upper top part facing the lower stop block is an arc chamfer, the cross section of the surface back to the lower stop block is a first bevel edge, and the first bevel edge is parallel to a second bevel edge of the lower stop block; the upper die is provided with an upper groove for accommodating an upper stop block, and the upper stop block is driven by an upper adjusting bolt arranged on the upper die to slide in the upper groove; the upper die is also provided with a lower pressing part with a sharp corner, a third bevel edge positioned on the outer side of the lower pressing part is parallel to a fourth bevel edge positioned on the upper stop block, and the lower pressing part is positioned between the lower stop block and the upper top.

Preferably, a lower cushion block is further arranged in the lower groove, and the lower cushion block is located at one end, far away from the upper top, of the lower stop block.

Preferably, an upper cushion block can be further arranged in the upper groove, and the upper cushion block is located between the lower pressing portion and the upper stop block.

Preferably, the length of the gap between the lower pressing part and the upper top part is equal to the thickness of the metal plate to be bent.

Preferably, the extension lines of the first oblique edge and the fourth oblique edge form an included angle.

The beneficial effects of the utility model are mainly embodied in that:

1. the structure is simple, the design is ingenious, the use is safe and reliable, and the processing cost and the processing period of the die are effectively reduced;

2. the arrangement of the upper chamfer on the upper top can avoid surface damage of the metal plate directly under the action force exerted by the lower pressing part, and meanwhile, the pressure intensity of a metal plate acceptance area is greatly relieved;

3. the upper cushion block and the lower cushion block are arranged, so that the rebound phenomenon in the working process can be prevented, and the yield is improved;

4. the extension lines of the first bevel edge and the fourth bevel edge form an included angle, and the bent metal plate can be Z-shaped under the resilience force of the metal plate, so that the working accuracy is improved;

5. the die can be self-adaptive to metal plates of different specifications, can be universal, reduces the use cost of the die, and simultaneously improves the service life of the die and the bending quality of the Z-shaped workpiece.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: the structure of the utility model is schematically shown.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

The present invention is not limited to the above embodiments, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood by those of ordinary skill in the art through specific situations.

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

As shown in fig. 1, the utility model discloses a Z shape is disconnected poor mould of bending with adjustable includes lower mould 1 at least, it has a low groove 11 that is used for holding lower dog 12 to open on the lower mould 1, lower dog 12 can be by setting up lower adjusting bolt 13 on the lower mould 1 drives it and is in slide in low groove 11. Still can be equipped with lower cushion 15 in the lower recess 11, lower cushion 15 is located lower dog 12 is kept away from the one end of last top 14, the setting of lower cushion 15 can prevent the rebound phenomenon in the course of the work, improves the yields. Further, the lower die 1 is further provided with an upper top 14, the top end of the surface of the upper top 14 facing the lower stop block 12 is an arc chamfer angle α, the cross section of the surface facing away from the lower stop block 12 is a first inclined edge a, and the first inclined edge a is parallel to a second inclined edge b of the lower stop block 12.

The utility model discloses still include and go up mould 2, it is located to go up mould 2 the top of lower mould 1, and can reciprocate it relatively. An upper groove 21 for accommodating an upper stop 22 is formed in the upper die 2, and the upper stop 22 can be driven by an upper adjusting bolt 23 arranged on the upper die 2 to slide in the upper groove 21. Go up the recess 21 in still can be equipped with the cushion 25, go up the cushion 25 and be located between splenium 24 and the last dog 22 down, the setting of going up cushion 25 can prevent to appear kick-back phenomenon in the course of the work, improves the yields. Further, a lower pressing portion 24 with a sharp corner is further arranged on the upper die 2, a third oblique edge c located on the outer side of the lower pressing portion 24 is parallel to a fourth oblique edge d located on the upper stop block 22, and the lower pressing portion 24 is located between the lower stop block 12 and the upper top portion 14.

In the above, the length of the gap between the pressing part 24 and the top part 14 is equal to the thickness of the sheet metal to be bent. The extension line of first hypotenuse an and fourth hypotenuse d can form the contained angle, and this contained angle can be bent at the panel beating and accomplish the back under the resilience force of panel beating self, be Z shape to improve the work precision.

The working process of the utility model is simply explained as follows: after the lower cushion block 15 and the upper cushion block 25 are adjusted to corresponding positions through the lower adjusting bolt 13 and the upper adjusting bolt 23, a metal plate is placed on the lower stop block 12 and the upper top 14, the upper die 2 is driven to move downwards until the third bevel edge c of the lower pressing portion 24 and the second bevel edge b of the lower stop block 12 are tightly attached to the side face of the metal plate, at the moment, the fourth bevel edge d is tightly attached to the side face of the metal plate, and the metal plate in a Z shape is bent.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. Z shape offset mould of bending with adjustable includes lower mould (1) and last mould (2), its characterized in that: the lower die (1) is provided with a lower groove (11) for accommodating a lower stop block (12), and the lower stop block (12) can be driven by a lower adjusting bolt (13) arranged on the lower die (1) to slide in the lower groove (11); the lower die (1) is also provided with an upper top (14), the top end of the surface of the upper top (14) facing the lower stop block (12) is an arc chamfer angle (alpha), the cross section of the surface back to the lower stop block (12) is a first bevel edge (a), and the first bevel edge (a) is parallel to a second bevel edge (b) of the lower stop block (12); an upper groove (21) used for accommodating an upper stop block (22) is formed in the upper die (2), and the upper stop block (22) can be driven to slide in the upper groove (21) by an upper adjusting bolt (23) arranged on the upper die (2); the upper die (2) is also provided with a pressing part (24) with a sharp corner, a third bevel edge (c) positioned on the outer side of the pressing part (24) is parallel to a fourth bevel edge (d) positioned on the upper stop block (22), and the pressing part (24) is positioned between the lower stop block (12) and the upper top part (14).

2. The adjustable Z-shaped differential bending die according to claim 1, wherein: a lower cushion block (15) can be further arranged in the lower groove (11), and the lower cushion block (15) is located at one end, far away from the upper top (14), of the lower stop block (12).

3. The adjustable Z-shaped differential bending die according to claim 1, wherein: an upper cushion block (25) can be further arranged in the upper groove (21), and the upper cushion block (25) is located between the lower pressing portion (24) and the upper stop block (22).

4. The adjustable Z-shaped differential bending die according to claim 1, wherein: the length of the gap between the lower pressing part (24) and the upper top part (14) is equal to the thickness of the metal plate to be bent.

5. The adjustable Z-shaped differential bending die according to claim 4, wherein: the extension lines of the first oblique side (a) and the fourth oblique side (d) can form an included angle.