CN214867166U

CN214867166U - Cooling insert

Info

Publication number: CN214867166U
Application number: CN202022495142.3U
Authority: CN
Inventors: 李鸿标; 鲁晶晶; 王英峰; 王凯庆; 李勇; 周鹏; 汪煦; 李昌海; 朱志华
Original assignee: CITIC Dicastal Co Ltd
Current assignee: CITIC Dicastal Co Ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-11-26
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a cooling insert, insert the body including the cooling, the cooling is inserted and is seted up the return water course in, the cooling insert set up on the body with the inlet channel and the outlet hole of return water course intercommunication, the position that corresponds inlet channel on the return water course is seted up flutedly, the inlet channel passes return water course through inlet channel and gets into the recess, the cooling water can enter into the recess through the inlet channel, gap entering return water course between rethread inlet channel and the recess lateral wall, at last from the outlet hole outflow. The scheme has reasonable design, accords with casting manufacturability, and is more favorable for realizing sequential solidification and improving production speed.

Description

Cooling insert

Technical Field

The utility model belongs to the technical field of the wheel casting technique and specifically relates to a cooling is inserted.

Background

Aluminum alloy parts and assemblies are one of the most important components in the machine manufacturing industry such as automobile manufacturing. The forming and manufacturing technology of aluminum alloy parts is continuously innovative and developed from the beginning of birth to the modern. But mainly fall into the following three categories: firstly, casting and forming processes, such as pressure casting, gravity casting and the like; secondly, deformation forming process, such as forging forming, spinning forming and the like; and thirdly, stacking and forming processes, such as injection molding, 3D printing and other technologies. The casting forming process has the advantages of yield, efficiency, quality, cost and the like, and has the widest application range.

Industrial casting technology has been developed since the beginning of the twentieth century, and low-pressure casting of aluminum alloy parts is the casting molding technology most used among them. The low-pressure casting technology in the early century realizes the technical leap again by means of the development of the industrial automation technology, the intelligent manufacturing technology and the industrial interconnection cloud technology. Of course, the key is the improvement of the low-pressure casting core technology brought by the mature application of the high-efficiency cooling insert low-pressure casting technology.

At present, the cooling insert technology overcomes the problems of welding manufacture, die material, service life and the like, and is generally used in the industries of aluminum alloy hub manufacture and the like. The main stream water-cooling channel all uses ring type or circular arc structure, and the cooling medium is continuous face contact heat transfer with the mould interface, and the worker mould design requirement is higher, is suitable for the simple foundry goods development of most rules relatively. However, some water cooled structures are somewhat inadequate for handling discontinuous castings. For example, the aluminum alloy hub has a large number of spokes (more than 5 spokes); when complex shapes such as Undercut design exist, the continuous surface water-cooled water channel structure not only has no obvious cooling effect, but also plays an opposite role.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a cooling insert, which can realize the fixed-point cooling of a specific region and reduce the cooling strength of a region not requiring cooling.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a cooling insert, includes the cooling body of inserting, and the cooling is inserted and is seted up the return water course in the body, and the cooling is inserted and is offered the inlet channel and the outlet water hole that communicate with the return water course on the body, and the position that corresponds the inlet channel on the return water course is seted up flutedly, and the inlet channel passes return water course through the inlet channel and gets into the recess, and the cooling water can enter into the recess through the inlet channel, and the gap between rethread inlet channel and the recess lateral wall gets into the return water course, flows from the outlet water hole at last.

In some embodiments, a water inlet nozzle is arranged at one end of the water inlet pipeline close to the groove.

In some embodiments, the upper part of the water return channel is provided with a sealing block.

In some embodiments, a sealing ring is disposed between the water inlet pipe and the water inlet channel.

In some embodiments, the diameter of the water inlet channel is 10-16mm, and the diameter of the water inlet pipeline is 8-14 mm.

In some embodiments, the water inlet channels are provided at locations of the mold where localized cooling is desired.

In some embodiments, the seal block is welded to the upper portion of the return water channel.

In some embodiments, the sealing ring is welded between the water inlet conduit and the water inlet channel.

Compared with the prior art, the cooling insert has the following advantages:

the design scheme of the region fixed point cooling insert is simple and reliable in structure and easy to manufacture.

And secondly, the scheme is reasonable in design, meets the casting manufacturability, and is more beneficial to realizing sequential solidification and improving the production speed. In areas where cooling is needed, such as spoke and runner locations, cooling is enhanced by spot cooling; where cooling is not required, e.g. at the window location, the cooling effect is correspondingly reduced.

Thirdly, extensive applicability, the structure insert can not only use cooling water medium, but also use compressed air as cooling medium, and can mix cooling water and compressed air for alternate use.

Fourthly, the temperature uniformity in the circumferential direction of the hub hot spot is more favorably realized, namely the temperature difference between the casting spoke and the window area is reduced, namely the casting deformation size difference at the position is smaller.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of a casting mold configuration;

FIG. 2 is a schematic view of the installation of the cooling insert of the present invention;

FIG. 3 is a cross-sectional view of a cooling insert of the present invention;

FIG. 4 is a top sectional view of the cooling insert of the present invention;

fig. 5 is a schematic view of a die arrangement of the cooling insert of the present invention;

description of reference numerals:

1-side die body; 2-side form sliding key; 3-cooling the insert body; 4-a water inlet channel; 5-a water inlet spray head; 6-a water inlet pipeline; 7-a backwater water channel; 8-sealing the block; 9-a water return pipeline; 10-a sealing ring; 12-a hub spoke; 13-hub window.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The technical solution of the present invention will be described more clearly and completely with reference to the accompanying drawings, in which embodiments of the invention are shown and described. 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.

A cooling insert according to an embodiment of the present invention will be described with reference to fig. 1 to 5 in conjunction with an embodiment.

The utility model discloses a water-cooling is inserted, realizes more reasonable cooling arrangement to improve the even quick cooling of foundry goods. The cooling insert is a side mold cooling insert in a low-pressure casting mold system consisting of a top mold, a bottom mold, a side mold and a mold base, and is responsible for cooling and solidifying a hot spot part in the casting and forming process, so that the time speed of the whole casting single cycle is directly influenced. The adjustment of the casting defects at the position depends on the reasonability of a mold design scheme, and once the design is wrong, the adjustment means in the actual production is limited, and the process control is difficult. The original cooling water channel structure is mostly in the form of a circular ring or 1/2 and 1/4 circular arcs, as shown in fig. 1. The hub large hot spot is discontinuous in thickness in the circumferential direction, forced cooling is usually required at the hub position, namely the hot spot area corresponding to the pouring channel, and other areas are not required. The original cooling water channel structure is essentially continuous cooling in the circumferential direction, so that the conditions of difficult control of cooling time and flow and unstable casting quality often occur in the production process.

The utility model provides a cooling insert, inserts body 3 including the cooling, the cooling is inserted and is seted up return water course 7 in the body 3, the cooling is inserted and is offered the inlet channel 4 and the outlet hole that communicate with return water course 7 on the body 3, and the position that corresponds inlet channel 4 on the return water course 7 is seted up flutedly, and inlet channel 6 passes return water course 7 through inlet channel 4 and gets into the recess, and the cooling water can enter into the recess through inlet channel 6, and inlet channel 6 is close to the one end of recess and is provided with inlet shower nozzle 5. Then enters the backwater water channel 7 through a gap between the water inlet pipeline 6 and the side wall of the groove, and finally flows out from the water outlet hole. The upper part of the backwater water channel 7 is provided with a sealing block 8. A sealing ring 11 is arranged between the water inlet pipeline 6 and the water inlet pore passage 4. The diameter of the water inlet pore canal 4 is 10-16mm, and the diameter of the water inlet pipeline 6 is 8-14 mm. The water inlet channel 4 is arranged at the part of the mould needing local cooling. The sealing block 8 is welded on the upper part of the backwater water channel 7. The sealing ring 11 is welded between the water inlet pipeline 6 and the water inlet pore passage 4.

The utility model discloses a simple structure's water-cooling channel structure does not increase the base member volume of inserting as shown in figure 2, sets up side forms feather key 2 and cooling on the side forms body 1 and inserts body 3, and side forms spline 2 plays the guide effect in die holding process to can insert the pipeline installation provides the part support in the body 3 for the cooling. The utility model discloses inlet channel 6 of porous water course and the inserts cooling business turn over water cooling structure inserts that the return water recess that forms by milling flutes + welded seal forms.

As shown in fig. 3: a plurality of water inlet channels 4 are arranged on the cooling insert body 3 according to the positions of the spokes or the pouring channels; a water inlet pipeline 6 with a water inlet nozzle 5 is uniformly arranged in each water inlet pore passage 4, and cooling water enters and cools a set position from the water inlet pipeline 6 and flows back to a water return channel 7; a sealing block 8 is arranged at the upper part of the water return channel 7, and the sealing block 8 is fixed on the cooling insert body 3 through welding; cooling water outside the die enters each water inlet pipeline 6 in parallel through an external water inlet pipeline; the return water in the return water channel 7 uniformly flows out of the mold from an external water outlet pipeline.

As shown in fig. 4, a sealing ring 10 is designed at a connection position of the plurality of water inlet channels 4 of the cooling insert body 3 and an external water inlet pipeline, and is welded, sealed and fixed by a special welding process.

The size of the cooling insert body 3 is determined by the size of a casting hot spot, generally, the parting line of the upper part of the insert needs to have an efficiency hot spot R angle larger than 0.5-1mm, and the parting line of the lower part of the insert needs to be larger than 8-10mm away from the parting surfaces of a side die and a bottom die; the diameter of the porous water inlet duct 4 is designed to be within the range of 10-16mm, and the distance from the front end of the duct to the casting is more than 20-30 mm; the diameter of the water inlet pipeline 6 is designed to be 8-14 mm; the backwater channel is square 10-12mm multiplied by 12-14 mm; the diameter of the external water inlet and outlet pipeline is 12-16mm, the diameter of the water outlet pipeline is 2-4mm larger than that of the water inlet pipeline, and the external water inlet pipeline is arranged above the external water outlet pipeline in the axial direction.

In some embodiments, the cooling inserts are equally divided into four blocks according to the circumference of the hub casting, and a plurality of water inlet channels in each insert are designed and arranged according to the position of the hub or pouring channel of the casting, as shown in fig. 5, so that specific region fixed-point cooling of the interface of the casting, the mold and the cooling medium can be realized.

Compared with the prior art, the utility model discloses a cooling is inserted and is had following advantage:

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the scope of the present invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cooling insert, its characterized in that, includes cooling insert body (3), set up return water course (7) in cooling insert body (3), set up inlet channel (4) and the play water hole that communicates with return water course (7) on cooling insert body (3), correspond on return water course (7) the position of inlet channel (4) is seted up flutedly, and inlet channel (6) pass return water course (7) through inlet channel (4) and get into the recess, and cooling water can enter into the recess through inlet channel (6), and rethread inlet channel (6) and the gap between the recess lateral wall get into return water course (7), flow out from the play water hole at last.

2. The cooling insert according to claim 1, wherein the water inlet pipe (6) is provided with a water inlet nozzle (5) at an end adjacent to the recess.

3. The cooling insert according to claim 2, wherein a sealing block (8) is arranged at the upper part of the water return channel (7).

4. The cooling insert according to claim 3, wherein a sealing ring (11) is arranged between the water inlet line (6) and the water inlet channel (4).

5. The cooling insert according to claim 4, wherein the diameter of the water inlet channel (4) is 10-16mm and the diameter of the water inlet conduit (6) is 8-14 mm.

6. The cooling insert according to claim 5, wherein the water inlet channels (4) are provided at locations of the die where localized cooling is required.

7. The cooling insert according to claim 6, wherein the sealing block (8) is welded to the upper part of the return water channel (7).

8. The cooling insert according to claim 6, wherein the sealing ring (11) is welded between the water inlet line (6) and the water inlet channel (4).