CN204700146U - The body of a motor car cold punching die of die face process can be carried out - Google Patents

Abstract

A kind of body of a motor car cold punching die carrying out die face process, belong to the technical field of automobile body part cold punching die, in order to solve because plate vibration makes the sheet material on mould have the problem of cut, technical essential is: blank holder is placed in the below of die and is socketed in the periphery of punch, described die has die die face, die die face is the die face with an angle, an angle in described die die face is that die die face suppresses district, described punch has punch die face, and described punch die face is placed in the below of die die face and parallels with die die face.Punch die face is placed in the below of die die face and parallels with die die face by the utility model, makes its plate in the process of mould, there will not be play phenomenon, thus the smooth no marking of processed plate surface.

Description

Cold Stamping Die for Automobile Body with Die Surface Treatment

technical field

The utility model belongs to the technical field of cold stamping dies for automobile body parts, and relates to the cold stamping dies in this field. More specifically, the utility model relates to a cold stamping die for automobile bodies which can be processed on the die surface.

Background technique

Automobile body cold stamping die is the mold with the highest requirements and the most difficult processing, assembly and debugging in automobile body manufacturing, and it is also a rapidly developing cold stamping process equipment in my country's electromechanical product manufacturing. Mold technology is of special significance to promote the development of national economy, and it is increasingly playing an important role in the large-scale production of modern industry. Among them, the surface quality of parts is a key part of the car body. Therefore, the quality of the surface quality of the stamped parts of the automobile body directly affects the assembly and sales of the automobile.

Utility model content

The utility model provides a cold stamping die for an automobile body that can be processed on the die surface to solve the problem of scratches on the plates on the die due to the serial movement of the plates in the drawing process and the unevenness of the surface of the processed and formed body parts. uneven problem.

In order to achieve the above object, the technical solution adopted by the utility model is: a cold stamping die for automobile body that can be processed on the die surface, including a die, a punch, a blank holder, a lower die holder and a machine tool ejector pin. The punch is supported by the lower mold base, the blank holder is supported by the ejector rod of the machine tool, and the blank holder is placed under the die and is sleeved on the outer periphery of the punch, the die has a die surface, The die face of the die is a die face with supporting angles, and the supporting angles on the die face of the die are the forced pressure zone of the die face of the die, and the punch has a die face, and the die face of the punch is Placed below the die face of the die and parallel to the die face of the die.

Beneficial effects: the die face of the utility model has a die face strong pressure zone, and the die face of the die is placed below the die face of the die and parallel to the face of the die, so that the plate parts are In the middle, there will be no movement phenomenon, so that the surface of the processed plate is smooth without scratches, and at the same time, the surface of the processed body parts is also smooth without unevenness.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among them: 1. Concave die, 2. Punch die, 3. Blank holder, 4. Lower die seat, 5. Machine tool ejector rod, 6. Concave die surface, 7. Concave die surface pressure zone, 8. Convex die Die face.

Detailed ways

In order to further illustrate the invention, the utility model will be described below in conjunction with the accompanying drawings and specific embodiments.

Example:

This embodiment relates to a cold stamping die for an automobile body that can be processed on the die surface, comprising a die 1, a punch 2, a blankholder 3, a lower die base 4 and a machine tool ejector 5, and the punch 2 is formed by the following Die holder 4 is supported, and described blank holder 3 is supported by machine tool mandrel 5, and blank holder 3 is placed below die 1 and is sleeved on the outer periphery of punch 2, and described die 1 has die Die face 6, the die face 6 of the female die is a die face with supporting angles, and the supporting angles on the die face 6 of the die are the forced pressure zone 7 of the die face of the die, and the punch 2 has a die face of the die 8. The male mold surface 8 is placed below the concave mold surface 6 and parallel to the concave mold surface 6.

The die surface treatment process of the automobile body cold stamping die that can be processed in the present embodiment is as follows:

Die surface treatment is carried out in the die 1 of the drawing process, and the die surface treatment is selected at the product ridge line and the outer periphery, and the length of 30mm with a branch angle in the die surface 6 of the die is used as the die surface of the die for strong pressure In zone 7, excessive processing is carried out on the product surface, and the surface in the middle of the product can be attached to the shape. Among them, the ridge line and outer periphery of the product are subjected to strong pressure treatment, and the die is forced to 0.1mm. When the cold stamping die of the automobile body that can be processed on the die surface is working, the die 1 and the blank holder 3 are in contact first, and they go down together. At 0.1mm before the bottom, the ridge line and the outer periphery of the product are in contact with the punch 2 first, and the plate is pressed tightly to prevent the sheet from being stretched. This treatment ensures the ridge line and the surrounding area The sheet does not move in series, avoiding scratches and strains on the surface of the sheet.

By using the cold stamping die of the automobile body that can be used for die surface treatment, the plate will not move during the processing of the die, so that the surface of the processed plate is smooth and scratch-free, and the processed body parts The surface is also smooth without unevenness, which improves the quality of the product.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (1)

1. one kind can be carried out the body of a motor car cold punching die of die face process, it is characterized in that: comprise die (1), punch (2), blank holder (3), die shoe (4) and lathe push rod (5), described punch (2) is supported by die shoe (4), described blank holder (3) is supported by lathe push rod (5), and blank holder (3) is placed in the below of die (1) and is socketed in the periphery of punch (2), described die (1) has die die face (6), die die face (6) is the die face with an angle, an angle in described die die face (6) is that die die face suppresses district (7), described punch (2) has punch die face (8), described punch die face (8) is placed in the below of die die face (6) and parallels with die die face (6).