CN210936726U

CN210936726U - Cold end separates tensile mould of heat exchanger

Info

Publication number: CN210936726U
Application number: CN201921632712.XU
Authority: CN
Inventors: 马中健; 郑康; 盛程
Original assignee: Pinghu Aichiwei Auto Parts Co Ltd
Current assignee: Pinghu Aichiwei Auto Parts Co Ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-07-07
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a cold junction heat shield drawing die, which comprises an upper die assembly, a lower die assembly and a guide assembly, wherein the upper die assembly can move in the vertical direction relative to the lower die assembly under the guide of the guide assembly; the lower die assembly comprises a lower die base, an upper die plate and a punch, and the lower die assembly comprises a lower die base, a lower backing plate, a first lower die plate, a lower clamping plate, a second lower die plate and a die core. When the die is used for bending, stretching and stamping the cold end heat insulation cover, the cold end baffle can be stamped and formed at one time, and multiple stamping and forming are carried out differently; when the guide assembly is used for die combination, the upper die assembly and the lower die assembly are accurately guided to punch the cold-end heat-insulating cover, so that the precision and the stability of the cold-end heat-insulating cover after punching forming can be ensured; when the limiting assembly is used for die assembly, the stroke of the upper die assembly can be effectively controlled, and the upper die assembly is prevented from being pressed downwards continuously after being formed by punching.

Description

Cold end separates tensile mould of heat exchanger

Technical Field

The utility model relates to a mould processing technology field especially relates to a cold junction separates tensile mould of heat exchanger.

Background

The stamping die is a special technological equipment for processing materials into parts or semi-finished products in cold stamping processing, and is called as a cold stamping die and commonly called as a cold stamping die. Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. Stamping dies are widely available in many forms, and can be classified into a blanking die, a bending die, a drawing die, a forming die, a riveting die, and the like according to the process properties. The forming die is a die which directly copies and forms a blank or a semi-finished workpiece according to the shapes of a convex die and a concave die of a figure, and the material per se only generates local plastic deformation; such as an expanding die, a necking die, a flaring die, a relief forming die, a flanging die, a sizing die and the like, which is widely used in stamping dies. In the existing cold-end heat shield stamping die, when the cold-end heat shield is bent and stretched for stamping, multiple times of stamping are needed, and one-time stamping cannot be performed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cold junction separates tensile mould of heat exchanger has solved the problem of proposition among the above-mentioned background art.

In order to achieve the above object, the utility model adopts the following technical scheme: a cold end heat shield stretching die comprises an upper die assembly, a lower die assembly and a guide assembly, wherein the upper die assembly can move in the vertical direction relative to the lower die assembly under the guidance of the guide assembly;

the upper die assembly comprises an upper die base, an upper die plate is fixedly arranged below the upper die base, a punch is fixedly arranged below the upper die plate, and a concave cavity for accommodating the cold-end heat insulation cover is formed in the punch;

the lower die assembly comprises a lower die base, a lower backing plate is fixedly arranged above the lower die base, a first lower die plate and a lower clamping plate are fixedly arranged above the lower backing plate, the lower clamping plate is located in the middle of the first lower die plate, a second lower die plate is fixedly arranged above the first lower die plate, a die core is arranged in the middle of the second lower die plate, and the die core is fixedly arranged above the lower clamping plate.

Further, the guide assembly comprises an upper guide sleeve, a lower guide sleeve and a guide column, the upper guide sleeve is fixed on the bottom surface of the upper die base, the lower guide sleeve is fixed on the lower die base, the upper guide sleeve and the lower guide sleeve are provided with through holes, and the guide column is arranged in the through holes.

Further, the cold end heat shield stretching die further comprises a limiting assembly, the limiting assembly comprises an upper limiting column and a lower limiting column, the upper limiting column is fixedly arranged on the bottom surface of the upper die base, the lower limiting column is fixedly arranged on the top surface of the lower die base, and during die assembly, the bottom surface of the upper limiting column and the top surface of the lower limiting column are abutted to limit.

Furthermore, a plurality of positioning blocks are fixedly arranged on the first lower template, and positioning grooves corresponding to the positioning blocks are formed in the bottom surface of the upper template.

Furthermore, U-shaped grooves are symmetrically formed in the front side and the rear side of the upper die base.

The utility model discloses the beneficial effect who has does: when the die is used for bending, stretching and stamping the cold end heat insulation cover, the cold end baffle can be stamped and formed at one time, and multiple stamping and forming are carried out differently; when the guide assembly is used for die assembly, the upper die assembly and the lower die assembly are accurately guided to punch the cold-end heat-insulating cover, so that the precision and the stability of the cold-end heat-insulating cover after punching forming can be ensured; when the limiting assembly is used for die assembly, the stroke of the upper die assembly can be effectively controlled, and the upper die assembly is prevented from being pressed downwards continuously after being formed by punching.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural view of the upper die assembly of the present invention.

Fig. 4 is a schematic structural view of the lower die assembly of the present invention.

Fig. 5 is a schematic view of the structure of the workpiece before stamping.

FIG. 6 is a schematic diagram of a stamped and formed aft cold end heat shield.

The reference numbers are as follows:

the device comprises an upper die assembly 1, an upper die base 11, an upper die plate 12, a punch 13, a positioning groove 14 and a U-shaped groove 15;

the device comprises a lower die component 2, a lower die holder 21, a lower backing plate 22, a first lower template 23, a lower clamping plate 24, a second lower template 25, a die core 26 and a positioning block 27;

the guide component 3, the upper guide sleeve 31, the lower guide sleeve 32 and the guide column 33;

a limiting component 4, an upper limiting column 41 and a lower limiting column 42.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the 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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 6, the cold end heat shield stretching die comprises an upper die assembly 1, a lower die assembly 2 and a guide assembly 3, wherein the upper die assembly 1 can move in a vertical direction relative to the lower die assembly 2 under the guidance of the guide assembly 3;

the upper die assembly comprises an upper die base 11, an upper die plate 12 is fixedly arranged below the upper die base 11, a punch 13 is fixedly arranged below the upper die plate 12, and a concave cavity for accommodating the cold-end heat insulation cover is arranged in the punch 13; because the cold junction separates heat exchanger longer in length direction, and the degree of depth of bending is darker, the drift can be divided into the three-section, is convenient for make the drift like this, reduces the manufacturing degree of difficulty of drift.

The lower die assembly 2 comprises a lower die base 21, a lower backing plate 22 is fixedly arranged above the lower die base 21, a first lower die plate 23 and a lower clamping plate 24 are fixedly arranged above the lower backing plate 22, the lower clamping plate 24 is located in the middle of the first lower die plate 23, a second lower die plate 25 is fixedly arranged above the first lower die plate 23, a die core 26 is arranged in the middle of the second lower die plate 25, and the die core 26 is fixedly arranged above the lower clamping plate 24. Because the cold junction heat shield is longer in length direction, and the degree of depth of bending is darker, the mould benevolence can be divided into two sections, can reduce the manufacturing degree of difficulty of mould benevolence like this. When the die is closed, the upper die assembly is guided by the guide assembly to downwards punch the lower die assembly, and a material piece in the lower die assembly can be punched and formed by the punch and the die core for one time, and the cold end baffle can be punched and formed for multiple times.

The guide assembly 3 comprises an upper guide sleeve 31, a lower guide sleeve 32 and a guide column 33, the upper guide sleeve 31 is fixed on the bottom surface of the upper die holder 11, the lower guide sleeve 32 is fixed on the lower die holder 21, the upper guide sleeve 31 and the lower guide sleeve 32 are provided with through holes, and the guide column 33 is arranged in the through holes. When the guide assembly is used for die assembly, the upper die assembly and the lower die assembly are accurately guided to punch the cold-end heat-insulating cover, and the precision and the stability of the cold-end heat-insulating cover after punching can be guaranteed.

The cold end heat shield stretching die further comprises a limiting assembly 4, the limiting assembly 4 comprises an upper limiting column 41 and a lower limiting column 42, the upper limiting column 41 is fixedly arranged on the bottom surface of the upper die base, the lower limiting column 42 is fixedly arranged on the top surface of the lower die base, and during die assembly, the bottom surface of the upper limiting column 41 is abutted to the top surface of the lower limiting column 42 for limiting. When the limiting assembly is used for die assembly, the stroke of the upper die assembly can be effectively controlled, and the upper die assembly is prevented from being pressed downwards continuously after being formed by punching.

A plurality of positioning blocks 27 are fixedly arranged on the first lower die plate 23, and positioning grooves 14 corresponding to the positioning blocks 27 are arranged on the bottom surface of the upper die plate 12. When the material piece is placed in the die, the positioning block can position the material piece in a limited way, so that the material piece is prevented from being inclined, and the size of the cold-end heat shield formed by stamping is more accurate and stable.

The front side and the rear side of the upper die holder 11 are symmetrically provided with U-shaped grooves 15. The U-shaped groove 15 facilitates the clamping and positioning of the mold by the machine tool.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The cold end heat shield stretching die is characterized by comprising an upper die assembly (1), a lower die assembly (2) and a guide assembly (3), wherein the upper die assembly (1) can move in the vertical direction relative to the lower die assembly (2) under the guidance of the guide assembly (3);

the upper die assembly comprises an upper die base (11), an upper die plate (12) is fixedly arranged below the upper die base (11), a punch (13) is fixedly arranged below the upper die plate (12), and a concave cavity for accommodating the cold-end heat insulation cover is arranged in the punch (13);

lower mould subassembly (2) includes die holder (21), fixed lower bolster (22) that is equipped with in die holder (21) top, fixed first lower bolster (23) and lower plate (24) of being equipped with in lower bolster (22) top, lower plate (24) are located first lower bolster (23) middle part, fixed second lower bolster (25) that is equipped with in first lower bolster (23) top, second lower bolster (25) intermediate position is equipped with mould benevolence (26), mould benevolence (26) are fixed and are equipped with lower plate (24) top.

2. A cold end heat shield drawing die as claimed in claim 1 wherein: the guide assembly (3) comprises an upper guide sleeve (31), a lower guide sleeve (32) and a guide column (33), the upper guide sleeve (31) is fixed on the bottom surface of the upper die base (11), the lower guide sleeve (32) is fixed on the lower die base (21), the upper guide sleeve (31) and the lower guide sleeve (32) are provided with through holes, and the guide column (33) is arranged in the through holes.

3. A cold end heat shield drawing die as claimed in claim 1 wherein: the cold end heat shield stretching die further comprises a limiting assembly (4), the limiting assembly (4) comprises an upper limiting column (41) and a lower limiting column (42), the upper limiting column (41) is fixedly arranged on the bottom surface of the upper die base, the lower limiting column (42) is fixedly arranged on the top surface of the lower die base, and the bottom surface of the upper limiting column (41) and the top surface of the lower limiting column (42) are abutted to limit during die assembly.

4. A cold end heat shield drawing die as claimed in claim 1 wherein: a plurality of positioning blocks (27) are fixedly arranged on the first lower template (23), and positioning grooves (14) corresponding to the positioning blocks (27) are formed in the bottom surface of the upper template (12).

5. A cold end heat shield drawing die as claimed in claim 1 wherein: u-shaped grooves (15) are symmetrically arranged on the front side and the rear side of the upper die holder (11).