阅读说明：本技术 汽车扭力梁后下板加强板冷冲压生产工艺 (Cold stamping production process for rear lower plate reinforcing plate of automobile torsion beam ) 是由 刘登发 于 2018-08-08 设计创作，主要内容包括：一种汽车扭力梁后下板加强板冷冲压生产工艺,其特征是采用下料,落料、冲孔,拉深,冲孔、修边,去毛刺工艺步骤。产品形状和尺寸一致性好,合格率高,材料损耗小,操作简便、安全,模具投资少,生产周期段,生产效率高、成本低,具有推广应用价值。(A cold stamping production process for a reinforcing plate of a rear lower plate of an automobile torsion beam is characterized by comprising the following process steps of blanking, punching, deep drawing, punching, trimming and deburring. The product has good shape and size consistency, high qualification rate, small material loss, simple and safe operation, less mold investment, short production period, high production efficiency and low cost, and has popularization and application values.)

1. A cold stamping production process for a rear lower plate reinforcing plate of an automobile torsion beam is characterized by comprising the following steps:

(1) and blanking: according to the unfolding size of the workpiece, shearing the plate into strips on a plate shearing machine;

(2) blanking and punching: designing and manufacturing a special blanking and punching die, and carrying out blanking and punching processing on the cut strip materials on a punch press or a hydraulic press;

(3) and drawing: designing and manufacturing a special drawing die, and drawing the blanked and punched workpiece on a punch press or a hydraulic press;

(4) punching and trimming: designing and manufacturing a special punching and trimming die, and punching side holes and trimming the drawn workpiece on a punch press or a hydraulic press;

(5) and deburring: and (4) loading the punched and trimmed workpiece into a sand roller or a shot blasting machine, and performing deburring processing.

Technical Field

The invention relates to a method for producing automobile parts and components, in particular to a cold stamping production process for a rear lower plate reinforcing plate of an automobile torsion beam.

Background

At present, the lower plate reinforcing plate behind the automobile torsion beam mostly adopts simple and easy mould, and hand forming, owing to use simple and easy mould, the production process is loaded down with trivial details, and the part shape and size uniformity of output is poor, and the product size is unstable, influences the welding combination of subsequent handling, also influences the intensity, life-span and the security of welding seam quality and welding piece, low in production efficiency, with high costs.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the cold stamping production process for the reinforcing plate of the rear lower plate of the torsion beam of the automobile, which has the advantages of no need of occupying too many dies, equipment and fields, good shape and size consistency, simplicity, convenience and safety in operation, high production efficiency and low cost.

In order to realize the purpose, the specific process method adopted by the invention comprises the following steps:

1. blanking: according to the unfolding size of the workpiece, shearing the plate into strips on a plate shearing machine;

2. blanking and punching: designing and manufacturing a special blanking and punching die, and carrying out blanking and punching processing on the cut strip materials on a punch press or a hydraulic press;

3. drawing: designing and manufacturing a special drawing die, and drawing the blanked and punched workpiece on a punch press or a hydraulic press;

4. punching and trimming: designing and manufacturing a special punching and trimming die, and punching side holes and trimming the drawn workpiece on a punch press or a hydraulic press;

5. deburring: and (4) loading the punched and trimmed workpiece into a sand roller or a shot blasting machine, and performing deburring processing.

By adopting the process method, the invention has the advantages of good product shape and size consistency, high qualification rate, small material loss, simple and safe operation, less mold investment, short production period, high production efficiency and low cost, and has popularization and application values.

Detailed description of the preferred embodiments

1. According to the unfolding size of the workpiece, shearing the plate into strips on a plate shearing machine;

2. designing and manufacturing a special blanking and punching die, and carrying out blanking and punching processing on the cut strip materials on a punch press or a hydraulic press;

3. designing and manufacturing a special drawing die, and drawing the blanked and punched workpiece on a punch press or a hydraulic press;

4. designing and manufacturing a special punching and trimming die, and punching side holes and trimming the drawn workpiece on a punch press or a hydraulic press;

5. and (4) loading the punched and trimmed workpiece into a sand roller or a shot blasting machine, and performing deburring processing.