CN211990581U

CN211990581U - Copper pipe pre-shaping die

Info

Publication number: CN211990581U
Application number: CN202020436432.8U
Authority: CN
Inventors: 陈楠; 明军军; 汪澈
Original assignee: 上海毫厘机电科技有限公司
Current assignee: Millimeter Electromechanical Suzhou Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-24
Anticipated expiration: 2030-03-30

Abstract

The utility model provides a copper pipe is moulding mould in advance, the mould is used for moulding the copper pipe and is D font structure for the cross-section, the D font be the plane for the upper surface in copper pipe cross-section, the lower surface is the cambered surface, the mould includes: the device comprises a lower die base, a die core, a floating core and an upper die base; the die core is fixed on the lower die base, the floating core is arranged in the die core, the floating core can float up and down in a certain distance relative to the front face of the lower die base, a spring is arranged between the floating core and the lower die base, a D-shaped cavity is formed on the die core and the floating core together, and a copper pipe to be shaped is arranged in the D-shaped cavity. The utility model provides a light assembled scheme that realizes D font copper pipe under the ceramic substrate of aluminium sesquioxide, need not crimping copper pipe and moulding in aluminium sesquioxide ceramic substrate, can easily pack into aluminium sesquioxide ceramic substrate with the D font copper pipe after moulding and assist the epoxy solidification.

Description

Copper pipe pre-shaping die

Technical Field

The utility model relates to a copper pipe plastic deformation technology correlation technique field specifically is a copper pipe is moulding mould in advance.

Background

The traditional copper tube type liquid cooling radiator is an aluminum alloy base material, and the base material is high in strength and not easy to deform; the processing and forming method comprises the following steps: the outer diameter and the shape of the copper flow channel are machined in advance on the base material, then the copper pipe is pressed into the flow channel in a D shape in an interference mode through the pressing machine, the heat dissipation contact area is increased, and the epoxy resin is used for filling air bubbles in the gap, so that the combination of the copper pipe and the aluminum alloy base material is achieved, and the best heat dissipation effect is achieved.

For a copper tube type liquid cooling radiator which needs to be used in a specific electromagnetic radiation environment (such as nuclear magnetic equipment), strong electromagnetic radiation can be generated when the nuclear magnetic equipment of medical equipment works, and a large amount of electromagnetic eddy current can be additionally generated by the conductivity of the metal base material radiator, so that the imaging quality and the service life of the equipment are greatly influenced. The aluminum oxide ceramic has excellent insulativity and radiation resistance, so that the aluminum oxide ceramic can be used as a base material for realizing heat dissipation in an electromagnetic environment; however, due to the fact that ceramic is extremely brittle, the copper pipe cannot be pressed into the radiator in an interference mode or even molded into a D shape, and the application of the aluminum oxide ceramic substrate to the copper pipe type radiator is severely limited.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art, the utility model discloses combine prior art, from practical application, provide a copper pipe moulding mould in advance, the utility model provides an easily realize the assembled scheme of D font copper pipe under the ceramic substrate of aluminium sesquioxide, need not crimping copper pipe and moulding in aluminium sesquioxide ceramic substrate, can be with the D font copper pipe after moulding light pack into aluminium sesquioxide ceramic substrate in assist with the epoxy solidification.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a copper pipe is moulding mould in advance, the mould is used for moulding the copper pipe and is D font structure for the cross-section, the D font be the plane for the upper surface in copper pipe cross-section, the lower surface is the cambered surface, its characterized in that, the mould includes: the device comprises a lower die base, a die core, a floating core and an upper die base;

the copper tube shaping die comprises a die core, a floating core, a spring, a D-shaped cavity and an upper die base, wherein the die core is fixed on the lower die base, the floating core is arranged in the die core, the floating core can float up and down in a certain distance relative to the front surface of the lower die base, the spring used for ejecting the floating core upwards for a certain distance is arranged between the floating core and the lower die base, the die core and the floating core are jointly formed with the D-shaped cavity, a copper tube to be shaped is arranged in the D-shaped cavity, and the upper die base is used for applying force to the copper tube to.

Further, a half D-shaped cavity is formed in the mold core, a half D-shaped cavity is formed in the floating core, and the half D-shaped cavity of the mold core and the half D-shaped cavity of the floating core jointly form a D-shaped cavity for shaping the copper pipe.

Further, the bottom of the floating core is connected with equal-height screws which are in sliding fit with the lower die base, and corresponding limiting steps are arranged between the equal-height screws and the lower die base and used for limiting the floating distance of the floating core.

Furthermore, a positioning block is arranged on one side of the mold core and fixed on the lower die base, and a positioning groove for positioning the copper pipe is formed in the positioning block.

Further, the mold core and the positioning block are fixed on the lower die base through screws.

Furthermore, the springs are multiple and are arranged in parallel in multiple rows in sequence.

The utility model has the advantages that:

the utility model provides a light realization D font copper pipe (fig. 1) assembled scheme under the ceramic substrate of aluminium sesquioxide, need not crimping copper pipe and moulding, when this mould used, made the copper pipe mould behind the accessible press compound die and formed the D font to can easily take out, can not cause other deformations of copper pipe, the D font copper pipe after the moulding can easily be packed into and assist the epoxy solidification in the aluminium sesquioxide ceramic substrate.

Drawings

FIG. 1 is a schematic view of the copper tube structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the copper tube of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is a schematic diagram of the overall structure of the present invention in a disassembled state;

FIG. 5 is a schematic structural view of the present invention with the upper die base and the copper tube removed;

FIG. 6 is a schematic view showing the split state of the floating core and the mold core;

FIG. 7 is a schematic structural view of the lower die holder, the spring and the equal-height screw of the present invention;

fig. 8 is a schematic view of the installation mode of the equal-height screws of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

The utility model provides a copper pipe pre-shaping mould and a pre-shaping method. The copper tube type liquid cooling radiator is applied to the copper tube type liquid cooling radiator in the specific electromagnetic radiation environment with aluminum oxide ceramics as a substrate.

The aluminum oxide ceramic has excellent insulativity and radiation resistance, so that the aluminum oxide ceramic can be used as a base material for realizing heat dissipation in an electromagnetic environment; and because the ceramic brittleness is very large, the copper pipe cannot be pressed into the D-shaped copper pipe in an interference manner or even molded into the D-shaped copper pipe. The technical scheme of the utility model solved and easily realized D font copper pipe (fig. 1) assembled scheme under the ceramic substrate of aluminium oxide, need not crimping copper pipe and moulding. The D-shaped copper pipe is shown in figure 2, and the cross section of the copper pipe is D-shaped.

The utility model discloses lower die holder 1 has been contained, spring 2, equal altitude screw 3, mold core 4, locating piece 5, floating core 6, copper pipe 7, upper die base 8. The principle of the method is that the copper pipe is molded into a D shape after being closed by a press, and the copper pipe is taken out easily.

In order to realize the shaping technology, in the utility model, two rows of springs 2 are specifically installed in the lower die holder 1, the floating core 6 is installed above the springs 2, the front surface of the floating core 6 is provided with a half-D-shaped cavity, the back surface of the floating core is provided with a threaded hole, the back surface of the floating core 6 is connected with the distance between the back surface of the floating core 6 and the springs 2 by adopting equal-height screws 3, and the equal-height screws 3 can realize the up-and-down floating of the bottom of the floating core 6 and the front;

installing a mold core 4 and a positioning block 5 and locking the mold core 4 and the positioning block by screws, wherein a half D-shaped cavity is arranged on the front surface of the mold core 4, and the lower mold structure is assembled at the moment; placing a copper pipe 7 in a positioning groove (U-shaped groove) of a positioning block 5, closing an upper die base 8, setting a certain pressure on a working platform of a hydraulic press to press the copper pipe together with a die to a die core limiting position, and under the action of external force, the copper pipe in a stainless steel die core creeps towards prefabricated D-shaped cavities in a die core 4 and a floating core 6 respectively, so that a shaped D-shaped copper pipe is obtained; when the press block of the press machine is loosened, the floating core 6 pushes the copper pipe 7 out of the mold core 4 under the reaction force of the spring 2, and other deformation of the copper pipe 7 cannot be caused.

The utility model provides a light realization D font copper pipe assembled scheme under the ceramic substrate of aluminium sesquioxide, need not crimping copper pipe and moulding, can easily pack into the D font copper pipe after moulding and assist the epoxy solidification in the aluminium sesquioxide ceramic substrate.

Claims

1. The utility model provides a copper pipe is moulding mould in advance, the mould is used for moulding the copper pipe and is the D font structure for the cross-section, the D font be the plane for the upper surface in copper pipe cross-section, the lower surface is the cambered surface, its characterized in that, the mould includes: the device comprises a lower die base, a die core, a floating core and an upper die base;

2. The copper pipe pre-shaping mold as recited in claim 1, wherein the mold core is provided with a half D-shaped cavity, the floating core is provided with a half D-shaped cavity, and the half D-shaped cavity of the mold core and the half D-shaped cavity of the floating core together form a D-shaped cavity for copper pipe shaping.

3. A copper tube pre-shaping die as claimed in claim 1, wherein the bottom of the floating core is connected with an equal-height screw, the equal-height screw is in sliding fit with the lower die holder, and a corresponding limiting step is provided between the equal-height screw and the lower die holder for limiting the floating distance of the floating core.

4. A copper pipe pre-shaping mold as claimed in claim 1, wherein a positioning block is disposed on one side of the mold core, the positioning block is fixed on the lower mold base, and a positioning groove for positioning the copper pipe is disposed on the positioning block.

5. The copper tube preforming mold as claimed in claim 4, wherein the mold core and the positioning block are fixed to the lower die holder by screws.

6. A pre-forming die for copper tubes as claimed in claim 1, wherein said spring is plural, and said plural springs are arranged in parallel in rows.