CN219176761U

CN219176761U - Cold heading blank of aluminium connecting rod

Info

Publication number: CN219176761U
Application number: CN202222629321.0U
Authority: CN
Inventors: 冀晋辉; 陈攀
Original assignee: Beijing Singukeller Automotive Cold Forming Parts Inc
Current assignee: Beijing Singukeller Automotive Cold Forming Parts Inc
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-06-13
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a cold heading blank of an aluminum connecting rod, and relates to the technical field of automobile parts. The cold heading blank of the aluminum connecting rod comprises a connecting part in the middle, and an upper end part and a lower end part which are respectively arranged at two ends of the connecting part, wherein the upper end part and the lower end part are of cylindrical structures, the upper end part, the connecting part and the lower end part are sequentially connected, and the upper end part, the connecting part and the lower end part are integrally formed; the connecting part integrated into one piece, the connecting part includes cylindric first connecting piece and discoid second connecting piece, first connecting piece one end with second connecting piece one end is connected, the first connecting piece other end with upper end connection, the second connecting piece keep away from first connecting piece's one end with lower end connection.

Description

Cold heading blank of aluminium connecting rod

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a cold heading blank of an aluminum connecting rod.

Background

The parts are key parts in the multi-vehicle type automobile chassis of the joint venture brand, the aluminum connecting rod is made of aluminum alloy and has the functions of connecting other parts and bearing larger pressure and impact force, so that the requirements on the external dimension of the product and the integral mechanical strength of the parts are higher. Defects such as cracks, internal looseness, air holes and the like are not allowed to exist. In the use process of the part, once the part fails and breaks, the part can be separated, and if the part runs at a high speed, serious consequences can be caused, so that the quality of the product is very important, and the personal safety of a person is concerned.

The manufacturing process adopted before the piece adopts the aluminum bar as the raw material and adopts machining processes such as drilling, turning, milling and the like to produce, and the production can meet the production requirement of small batches, but the production is carried out in the mode, the operation is complex, operators need long-time training, otherwise, the operation is difficult to master, the production efficiency is low, each piece at least needs ten minutes, the labor intensity of the operators is high, the equipment use cost is high, and the production cost is high. For the production of tens of thousands of products, the operator repeatedly performs mechanical labor for a long time, and the parts such as eyes, hands, shoulders and the like are extremely tired; and the production efficiency is low, and about 500 products can be produced every day. For tens of thousands of automobile brands in a month, 1-2 tens of thousands of products are required to be supplied per month, and a large number of lathes with large scale are required to meet the production quantity by the conventional machining method, so that the production investment is huge.

Moreover, the utilization rate of the metal raw materials is only about 30 percent, a large amount of precious raw materials are changed into scrap waste residues, the production cost is increased, the environment is polluted, and the method is not in line with the energy-saving and low-carbon manufacturing concept proposed by the current country.

In view of this situation, there is an urgent need for a production method that can be efficiently and quickly performed on the production site.

Disclosure of Invention

Therefore, the embodiment of the utility model provides a cold heading blank of an aluminum connecting rod, which aims to solve the problems that the existing automobile connecting rod directly uses an aluminum rod as a blank, and has low production efficiency, high production cost and low utilization rate of aluminum alloy materials.

In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions:

the cold heading blank of the aluminum connecting rod comprises a connecting part in the middle, and an upper end part and a lower end part which are respectively arranged at two ends of the connecting part, wherein the upper end part and the lower end part are of cylindrical structures, the upper end part, the connecting part and the lower end part are sequentially connected, and the upper end part, the connecting part and the lower end part are integrally formed;

the connecting part integrated into one piece, the connecting part includes cylindric first connecting piece and discoid second connecting piece, first connecting piece one end with second connecting piece one end is connected, the first connecting piece other end with upper end connection, the second connecting piece keep away from first connecting piece's one end with lower end connection.

Optionally, a transitional cambered surface is arranged at the connection part of the first connecting piece and the upper end part.

Optionally, the connection part of the second connecting piece and the lower end part and the connection part of the second connecting piece and the second connecting piece are both provided with transitional cambered surfaces.

Optionally, the radius of the upper end portion and the radius of the lower end portion are both smaller than the radius of the first connecting piece.

Optionally, a stepped transition section is arranged at the connection part of the first connecting piece and the upper end part.

The utility model has at least the following beneficial effects:

the blank is manufactured by arranging the two ends of the connecting part to be respectively connected with the upper end part and the lower end part, the upper end part, the connecting part and the lower end part are integrally formed, and then simple machining is carried out, and a finished product can be obtained only by punching and cutting the upper end part and the lower end part of the two ends of the connecting part, so that the machining amount is greatly reduced, the production efficiency is improved, the small size of materials is reduced, and the consistency of the product size is improved. Meanwhile, the whole metal streamline is reserved in the cold heading process, and the cold work hardening effect of the metal is added, so that the whole mechanical property of the part produced by the process is obviously improved, and the product quality is obviously improved.

Drawings

In order to more clearly illustrate the prior art and the present utility model, the drawings used in the description of the prior art and the embodiments of the present utility model will be briefly described. It will be apparent to those skilled in the art that the drawings in the following description are merely exemplary and that other drawings may be derived from the drawings provided without the inventive effort to those skilled in the art.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, for example, modifications, variations in proportions, or otherwise, used in the practice of the utility model, which are particularly adapted to specific environments without departing from the spirit and scope of the utility model.

FIG. 1 is a schematic view of a first view angle structure of a cold heading blank according to an embodiment of the utility model;

FIG. 2 is a schematic view of a second view angle structure of a cold heading blank according to an embodiment of the utility model;

FIG. 3 is a schematic view of a third view angle structure of a cold heading blank according to an embodiment of the utility model;

fig. 4 is a schematic structural view of a cold heading blank (finished product) according to an embodiment of the utility model.

Reference numerals illustrate:

1. an upper end portion; 2. a connection part; 21. a first connector; 22. a second connector; 3. a lower end portion; 4. and a transition section.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the utility model, if any, are intended to distinguish between the referenced objects. For schemes with time sequence flows, such term expressions are not necessarily to be understood as describing a specific order or sequence, nor are such term expressions to distinguish between importance levels, positional relationships, etc. for schemes with device structures.

Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed but may include other steps or elements not expressly listed but inherent to such process, method, article, or apparatus or steps or elements that may be added based on a further optimization of the inventive concept.

As shown in fig. 1 and 2, the cold heading blank of the aluminum connecting rod disclosed by the utility model comprises a middle connecting part 2, an upper end part 1 and a lower end part 3 which are respectively arranged at two ends of the connecting part 2, wherein the upper end part 1 and the lower end part 3 are of cylindrical structures, the upper end part 1, the connecting part 2 and the lower end part 3 are sequentially connected, and the upper end part 1, the connecting part 2 and the lower end part 3 are integrally formed;

the connecting portion integrated into one piece, connecting portion 2 includes cylindric first connecting piece 21 and discoid second connecting piece 22, first connecting piece 21 one end with second connecting piece 22 one end is connected, the first connecting piece 21 other end with upper end 1 is connected, second connecting piece 22 is kept away from first connecting piece 21's one end with lower end 3 is connected. The connection part of the first connecting piece 21 and the upper end part 1 is provided with a transitional cambered surface. The connection part of the second connecting piece 22 and the lower end part 3 and the connection part of the second connecting piece 22 and the second connecting piece 22 are provided with transitional cambered surfaces. The radius of the upper end portion 1 and the radius of the lower end portion 3 are smaller than the radius of the first connecting member 21.

The total length of the connecting part 2 and the upper end part 1 and the lower end part 3 of the blank is 112mm, and in the connecting part 2, the first connecting piece 21 has a cylindrical structure with a diameter of 26.50mm; the second connecting piece 22 has a disc-shaped structure with a diameter of 47mm and a height of 5mm; the upper end 1 and the lower end 3 are both cylindrical in structure, and the diameters are 21mm.

As shown in fig. 3, in some embodiments, a stepped transition section 4 may also be provided between the first connection piece 21 and the connection of the upper end 1.

The utility model adopts the cold heading mode to produce the blank, as shown in fig. 4, and then carries out simple machining, and the finished product can be obtained only by punching and cutting the shapes of the two ends of the part, thereby greatly reducing the machining amount, improving the production efficiency, reducing the material consumption and improving the size consistency of the product. Meanwhile, the whole metal streamline is reserved in the cold heading process, and the cold work hardening effect of the metal is added, so that the whole mechanical property of the part produced by the process is obviously improved, and the product quality is obviously improved.

The part is produced in a cold heading mode, the production efficiency is high, 4-6 ten thousand parts can be produced per equipment per day, the production process is stable, and the production line can be operated by only one operator.

The application of the process can rapidly and economically produce the parts, ensure that the sizes and performances of the parts meet the requirements of drawings and clients, liberate production staff from simple and repeated monotonous labor, reduce the labor intensity of the staff and improve the labor efficiency of the staff. Compared with the original pure machining production mode, the production efficiency is improved by more than 10 times, the energy is saved, the consumption is reduced, and the environment is protected.

Any combination of the technical features of the above embodiments may be performed (as long as there is no contradiction between the combination of the technical features), and for brevity of description, all of the possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly written, should also be considered as being within the scope of the present description.

The utility model has been described above with particularity and detail in connection with general description and specific embodiments. It should be noted that it is obvious that several variations and modifications can be made to these specific embodiments without departing from the spirit of the present utility model, which are all within the scope of protection of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. The utility model provides an aluminium matter connecting rod's cold-heading blank which characterized in that: the connecting part (2) in the middle and the upper end part (1) and the lower end part (3) which are respectively arranged at two ends of the connecting part (2), wherein the upper end part (1) and the lower end part (3) are of cylindrical structures, the upper end part (1), the connecting part (2) and the lower end part (3) are sequentially connected, and the upper end part (1), the connecting part (2) and the lower end part (3) are integrally formed;

connecting portion (2) integrated into one piece, connecting portion (2) include cylindric first connecting piece (21) and discoid second connecting piece (22), first connecting piece (21) one end with second connecting piece (22) one end is connected, first connecting piece (21) other end with upper end (1) are connected, second connecting piece (22) are kept away from the one end of first connecting piece (21) with lower tip (3) are connected.

2. The cold heading blank for an aluminum connecting rod according to claim 1, wherein: the connecting part of the first connecting piece (21) and the upper end part (1) is provided with a transitional cambered surface.

3. The cold heading blank for an aluminum connecting rod according to claim 2, wherein: the connection part of the second connecting piece (22) and the lower end part (3) and the connection part of the second connecting piece (22) and the second connecting piece (22) are both provided with transitional cambered surfaces.

4. A cold heading blank for an aluminum connecting rod as defined in claim 3, wherein: the radius of the upper end (1) and the radius of the lower end (3) are both smaller than the radius of the first connecting piece (21).

5. The cold heading blank for an aluminum connecting rod according to claim 1, wherein: the connection part of the first connecting piece (21) and the upper end part (1) is provided with a stepped transition section (4).