Blank of automotive front pillar inner plate part and machining method

Abstract

Disclosed are a blank of an automotive front pillar inner plate part and a machining method. The blank is integrally similar to the appearance of the front pillar inner plate part, the middle of the blank is straight, one end of the blank is wide, the other end of the blank is narrow, two ends of the blank are bent towards the same side, bent positions are in arc transition, the blank comprises two pieces distributed on an online blanking and machining structure unit, and the two pieces of the blank are in central symmetry. The machining method includes the steps: using two stamping dies with cavities in central symmetry for online blanking on an uncoiling blanking line; uncoiling a steel plate coil, and leading the steel plate coil to correspond to one blanking and machining structure unit when conveying the steel plate coil by the length of a blanking unit; and using an online process for blanking once to manufacture the two pieces of the steel plate blank of the front pillar inner plate, wherein the two pieces are arrayed in central symmetry. By the aid of the front pillar inner blank with the structure, material utilization rate can be increased, and cost can be reduced. Besides, the step of single blanking for rectangular blanks in subsequent machining is omitted, manufacturing procedures can be simplified, cost can be saved, control links are decreased, and precision and quality of final parts are improved.

Description

technical field [0001] The invention relates to a steel plate blank and a processing method for the inner plate of the front pillar of an automobile. Background technique [0002] With the increasingly prominent contradiction between the development of the automobile industry and the limited nature of natural resources, people pay more and more attention to the utilization rate of auto parts materials. Improving the utilization rate of materials has become an important means for the automobile industry to reduce costs and promote energy conservation and environmental protection. [0003] Commonly, the unfolded effective surface 1 of the inner panel part of the front pillar is a strip-shaped polygon, the upper and lower long sides are parallel, and the left and right sides are bent downward. Such as figure 2 As mentioned above, the steel plate blank of the inner panel of the front pillar of the common car is a rectangular material 2. When manufacturing parts, the steel coil ...

AI Technical Summary

Problems solved by technology

like figure 2 As mentioned above, the steel plate blank of the inner panel of the front pillar of the common car is a rectangular material 2. When manufacturing parts, the steel coil is cut horizontally one by one to obtain the rectangular material, and then the die is used to go through the single blanking process and fine blanking into the required inner pillar of the car. The technical problems of plate parts are: the steel plate blank is rectangular, and the excess material needs to be removed when forming the part, resulting in a lot of waste, low material utilization rate, and high cost

At the same time, the rectangular material needs to be cut horizontally from the steel coil, and then blanked and fine-blanked to make the required parts. When using rectangular material, the manufacturing method has more processes and higher cost

Images