CN216607191U

CN216607191U - Insert for low-pressure casting new energy automobile product mold

Info

Publication number: CN216607191U
Application number: CN202123163144.3U
Authority: CN
Inventors: 王俊有; 周倩; 卢润泽
Original assignee: Jiangsu Wencan Die Casting Co ltd
Current assignee: Jiangsu Wencan Die Casting Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-27
Anticipated expiration: 2031-12-16

Abstract

The utility model relates to an insert for a low-pressure casting new energy automobile product mold, which is used for conveniently modifying a processing mold, is easy to replace and can prolong the service life of the mold. The insert is fixed with the mold core through a bolt, the insert comprises a body connected with the upper mold core in the mold, a riser, a tungsten steel insert and a cooling water pipe are arranged on the body, one side, close to a product, of the riser is provided with a riser neck, the diameter of the riser neck, close to one side of the product, is smaller than that of the riser, close to one side of the riser, the riser neck consists of a short neck edge and a long neck edge, the short neck edge is a straight edge, and the long neck edge is an S-shaped edge. The design of the riser neck can increase the feeding effect on the product under the limited space, is beneficial to the exhaust of the defect position, reduces the defects of air holes and ensures the quality of the product to a certain extent.

Description

Insert for low-pressure casting new energy automobile product mold

Technical Field

The utility model relates to an aluminum alloy product mold for low-pressure casting of a new energy automobile, in particular to an insert for a low-pressure casting new energy automobile product mold.

Background

With the prevalence of light weight of automobiles, aluminum alloy products gradually enter the field of automobiles, and are gradually popular due to the advantages of light weight, beauty, higher strength, corrosion resistance, easy processing and the like. However, the aluminum alloy product has a common defect, and in the aluminum liquid filling process, because of a series of uncontrollable factors of inaccurate process parameter setting or manual misoperation, air holes and shrinkage cavities are generated, so that the product yield is greatly influenced, and the production cost is invisibly increased for enterprises. Such as: the common auxiliary frame structure for passenger cars is a hollow shell with bending and large height drop because of the complex structure, and is generally formed by low-pressure casting. In the forming process, shrinkage cavity defects are often generated in partial areas due to insufficient feeding during solidification, so that the product yield is extremely reduced. According to the X-Ray detection result, the position of the upper die on the middle pipe orifice of the product has the defects of shrinkage porosity and shrinkage cavity, and the defects are large in batch, so that a large amount of scrap is generated, a large amount of economic loss is brought, and the delivery period of the product is influenced.

Disclosure of Invention

The utility model aims to overcome the defects and provide an insert for a low-pressure casting new energy automobile product mold.

The purpose of the utility model is realized by the following technical scheme: the utility model provides an insert for low pressure casting new energy automobile product mould, includes the body of being connected with the last mold core of mould, is equipped with rising head, wolfram steel mold insert and condenser tube on the body, and one side that the rising head is close to the product is equipped with the riser neck, and the riser neck diameter that is close to product one side is less than the riser neck diameter that is close to riser one side, and the riser neck comprises short neck limit and long neck limit, and the short neck limit is the straight flange, and the long neck limit is "S" type limit.

The utility model is further improved in that: the periphery of the body is provided with a plurality of bolt holes, and the body and the upper die core are fixed by screws.

The utility model is further improved in that: the body is also provided with a plurality of thimble holes which are evenly distributed.

The utility model is further improved in that: the diameter of the riser neck on the side close to the product is 33mm, and the diameter of the riser neck on the side close to the riser is 45 mm.

The utility model is further improved in that: the short neck-finish has a length of 28mm and the long neck-finish has a length of 54 mm.

The utility model is further improved in that: one end of the long neck edge is tangent with the riser.

Compared with the prior art, the utility model has the following advantages:

the use of the insert is convenient for modifying the processing mould, is easy to replace and can prolong the service life of the mould; the design of the riser neck can increase the feeding effect on the product under the limited space, is beneficial to the exhaust of the defect position, reduces the defects of air holes and ensures the quality of the product to a certain extent.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the configuration of risers and riser necks;

reference numbers in the figures: 1-body, 2-riser, 3-tungsten steel insert, 4-cooling water pipe, 5-riser neck, 5-1-short neck edge, 5-2-long neck edge, 6-bolt hole and 7-thimble hole.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Elements and features described in one embodiment of the utility model may be combined with elements and features shown in one or more other embodiments. It should be noted that the illustration omits illustration and description of components and processes not relevant to the present invention that are known to those of ordinary skill in the art for clarity purposes. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 and 2, an embodiment of an insert for a low-pressure casting new energy automobile product mold according to the present invention is shown, and the insert is used for conveniently modifying a machining mold, is easily replaced, and can prolong the service life of the mold. The mold insert comprises a body 1 connected with the upper mold core in the mold, namely a plurality of bolt holes 6 are arranged on the periphery of the body 1, the body 1 and the upper mold core are fixed by screws, the replacement is convenient, and the service life of the mold can be prolonged.

Be equipped with rising head 2, wolfram steel mold insert 3 and condenser tube 4 on the body 1, one side that the rising head 2 is close to the product is equipped with riser neck 5, and riser neck 5 is used for connecting rising head 2 and product, and the riser neck diameter that is close to product one side is less than the riser neck diameter that is close to riser one side, and the design principle of its riser neck is: the narrower the product part, the wider the riser part, so as to fully feed the product.

Because the wall thickness of the upper side of the insert body is not enough, if the neck lengths of the two sides of the riser neck are forcibly shortened, the strength of the insert cannot meet the requirement, and cracking is generated. Therefore, one side of the riser neck 5 is short in neck and the other side of the riser neck is long, namely the riser neck 5 consists of a short neck edge 5-1 and a long neck edge 5-2, so that the riser neck can be prevented from being cooled too fast, and the feeding of a riser to a product is increased; the short neck edge 5-1 is a straight edge, the long neck edge 5-2 is an S-shaped edge, and the length of the long neck edge is lengthened to the maximum extent by the S-shaped edge. The specific scheme is as follows: the diameter of the riser neck close to one side of the product is 33mm, the diameter of the riser neck close to one side of the riser is 45mm, the length of the short neck edge 5-1 is 28mm, the length of the long neck edge 5-2 is 54mm, one end of the long neck edge 5-2 is tangent to the riser 2, and the riser neck 5 is used for fully feeding the product part and helping to eliminate the shrinkage cavity defect at the position.

The body 1 is also provided with a plurality of thimble holes 7, and the thimble holes 7 are uniformly distributed and used for ejecting products.

The specific processing method of the insert comprises the following steps:

1. blowing off aluminum scraps on the clamp and the insert by using an edge air gun to prevent the product surface from being crushed and the size from being out of tolerance;

2. the insert is placed on a fixture horizontally with the surface to be machined facing upwards, and is clamped and positioned;

3. starting a program to run;

4. roughly boring the outer contour, and then finely boring, wherein the machining allowance is 3-5mm, and the machining time is 5-6 min;

5. and after the machining is finished, resetting the boring cutter, loosening the clamp and manually taking the workpiece.

And (4) verification result:

and processing the insert, recasting and producing after changing the riser neck structure, carrying out X-Ray detection, and removing the shrinkage cavity defect at the defect position. From the appearance, the feeder is more obviously deformed compared with the prior feeder, and the arrangement of the feeder plays a better feeding role for the product part.

Finally, it should be noted that: although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, devices, means, methods, or steps.

Claims

1. The utility model provides a mold insert for low pressure casting new energy automobile product mould, includes body (1) be connected with the last mold core in the mould, be equipped with rising head (2), wolfram steel mold insert (3) and cooling water pipe (4) in body (1), one side that rising head (2) are close to the product is equipped with riser neck (5), its characterized in that: the diameter of the riser neck close to one side of the product is smaller than that of the riser neck close to one side of the riser, the riser neck (5) consists of a short neck edge (5-1) and a long neck edge (5-2), the short neck edge (5-1) is a straight edge, and the long neck edge (5-2) is an S-shaped edge.

2. The insert for the low pressure casting new energy automobile product mold according to claim 1, wherein: the novel die is characterized in that a plurality of bolt holes (6) are formed in the periphery of the body (1), and the body (1) and the upper die core are fixed through screws.

3. The insert for the low pressure casting new energy automobile product mold according to claim 1, wherein: still be equipped with a plurality of thimble holes (7) on body (1), thimble hole (7) evenly distributed.

4. The insert for the low pressure casting new energy automobile product mold according to claim 1, wherein: the diameter of the riser neck on the side close to the product is 33mm, and the diameter of the riser neck on the side close to the riser is 45 mm.

5. The insert for the low pressure casting new energy automobile product mold according to claim 1, wherein: the length of the short neck edge (5-1) is 28mm, and the length of the long neck edge (5-2) is 54 mm.

6. The insert for the low pressure casting new energy automobile product mold according to claim 1, wherein: one end of the long neck edge (5-2) is tangent with the riser (2).