CN105081131A - Process for punching automobile spoke plates - Google Patents

Abstract

The invention discloses a process for punching automobile spoke plates. The process comprises the following steps: (1) blanking and drawing; (2) pre-forming; (3) forming; (4) trimming; (5) air hole punching; (6) steel seal stamping; (7) burr pressing; (8) bolt hole punching; (9) cooling through acid; and (10) precisely shaping. The process is mainly used for forming and processing steel spokes of automobiles on the automatic and intelligent production line of hydraulic presses; a spoke processing process matched with the production line comprises a total of ten steps. Through the process for punching the automobile spoke plates, the processing quality of the steel spokes is fully guaranteed on the basis of the on-line production mode of the hydraulic presses.

Description

A stamping process for automobile wheel spoke plate

technical field

The invention belongs to the technical field of stamping, and in particular relates to a stamping process of an automobile wheel spoke plate.

Background technique

With the rapid development of automobile manufacturing technology, the requirements for "quality" and "quantity" of auto parts are getting higher and higher. Improving the processing and forming quality of parts, mass production, reducing manufacturing costs, and reducing production energy consumption have become the development direction of the automobile manufacturing industry.

The hydraulic press and processing technology of traditional technology is based on the design idea and production mode of stand-alone, intermittent, small batch production, so its processing performance is fundamentally restricted, the main performance is as follows:

1) The forming process of automobile steel wheel spokes is a single-machine production or a single-machine multi-process production mode. Due to the single function, it is impossible to form a production line for automatic in-line production, so the production efficiency is low.

2) Due to the small batch production mode, in order to reduce capital investment and basically meet the product performance requirements, the traditional steel wheel spoke processing and forming process has fewer processing steps, and the forming functions of each process are not specific. One process completes several forming functions, and the quality of the product cannot be effectively guaranteed.

Above, the hydraulic press and processing technology of traditional technology can no longer adapt to the rapid development of today's automobile manufacturing technology.

Contents of the invention

In order to realize the purpose of the present invention, the present invention adopts following technical scheme:

A stamping process for an automobile spoke plate, comprising the following steps:

1) Blanking and deep drawing: Cut the sheet into a circular sheet with flanging, and punch out the center hole of the sheet to form a spoke sheet, and then deep-draw the spoke sheet;

2) Preforming: local drawing is carried out on the outer periphery of the center hole of the spoke sheet material to the inner cavity of the spoke, so that the center position of the spoke sheet material is sunken inward, and the flange forming of the center hole of the spoke sheet and the pressing of the reinforcing rib at the outer periphery of the center hole are completed;

3) Forming: Deep-draw the pre-formed spoke sheet, and shape the flanging used in the blanking and drawing and pre-forming process into a barrel shape and integrate with the side of the spoke to form the basic shape of the spoke;

4) Trimming: cut off the excess edges around the formed spokes;

5) Air blowing holes: punch out air holes evenly distributed along the center on the end face of the spokes;

6) Stamping: Emboss the product mark on the end face of the spoke;

7) Deburring: remove the burrs of the center hole of the spoke, the end face of the trimming edge and the air hole;

8) Punch bolt holes: Punch bolt holes on the outer periphery of the center hole of the spoke;

9) Acid cooling: cooling the spokes with nitrate;

10) Precise shaping: Precise shaping of the spokes to ensure the concentricity of the central hole of the spokes and the outer edge of the spokes.

Preferably, the nitrate in step 9) is sodium nitrate.

Beneficial effects of the present invention: It is mainly used for the forming processing of automobile steel spokes in the automatic intelligent hydraulic press production line, and the spoke processing technology matched with the production line has a total of 10 procedures, based on the hydraulic press in-line production mode, which fully guarantees the steel spokes processing quality.

Detailed ways

The embodiment provided by the present invention is described in further detail:

A stamping process for an automobile spoke plate, comprising the following steps:

1) Blanking and deep drawing: Cut the sheet into a circular sheet with flanging, and punch out the center hole of the sheet to form a spoke sheet, and then deep-draw the spoke sheet;

2) Preforming: local drawing is carried out on the outer periphery of the center hole of the spoke sheet material to the inner cavity of the spoke, so that the center position of the spoke sheet material is sunken inward, and the flange forming of the center hole of the spoke sheet and the pressing of the reinforcing rib at the outer periphery of the center hole are completed;

3) Forming: Deep-draw the pre-formed spoke sheet, and shape the flanging used in the blanking and drawing and pre-forming process into a barrel shape and integrate with the side of the spoke to form the basic shape of the spoke;

4) Trimming: cut off the excess edges around the formed spokes;

5) Air blowing holes: punch out air holes evenly distributed along the center on the end face of the spokes;

6) Stamping: Emboss the product mark on the end face of the spoke;

7) Deburring: remove the burrs of the center hole of the spoke, the end face of the trimming edge and the air hole;

8) Punch bolt holes: Punch bolt holes on the outer periphery of the center hole of the spoke;

9) Acid cooling: cooling the spokes with nitrate;

10) Precise shaping: Precise shaping of the spokes to ensure the concentricity of the central hole of the spokes and the outer edge of the spokes.

Preferably, the nitrate in step 9) is sodium nitrate.

The invention is mainly used for the forming and processing of steel spokes of automobiles in an automated intelligent hydraulic press production line. The spoke processing technology matched with the production line has a total of 10 procedures. Based on the hydraulic press in-line production mode, the processing quality of the steel spokes is fully guaranteed.

In this specification, the invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, the specification should be regarded as illustrative rather than restrictive.

Claims (2)

1. A stamping process for automobile wheel spoke plate, is characterized in that, comprises the following steps: 1) Blanking and deep drawing: Cut the sheet into a circular sheet with flanging, and punch out the center hole of the sheet to form a spoke sheet, and then deep-draw the spoke sheet; 2) Preforming: local drawing is carried out on the outer periphery of the center hole of the spoke sheet material to the inner cavity of the spoke, so that the center position of the spoke sheet material is sunken inward, and the flange forming of the center hole of the spoke sheet and the pressing of the reinforcing rib at the outer periphery of the center hole are completed; 3) Forming: Deep-draw the pre-formed spoke sheet, and shape the flanging used in the blanking and drawing and pre-forming process into a barrel shape and integrate with the side of the spoke to form the basic shape of the spoke; 4) Trimming: cut off the excess edges around the formed spokes; 5) Air blowing holes: punch out air holes uniformly distributed along the center on the end face of the spokes; 6) Stamping: Emboss the product mark on the end face of the spoke; 7) Deburring: remove the burrs of the center hole of the spoke, the end face of the trimming edge and the air hole; 8) Punch bolt holes: Punch bolt holes on the outer periphery of the center hole of the spoke; 9) Acid cooling: cooling the spokes with nitrate; 10) Precise shaping: Precise shaping of the spokes to ensure the concentricity of the central hole of the spokes and the outer edge of the spokes. 2. automobile spoke plate stamping process according to claim 1, is characterized in that, the nitrate in step 9) is sodium nitrate.