Blanking method and system for automobile plate

Abstract

The invention discloses a blanking method and system for an automobile plate. The blanking method comprises the following steps of: arranging automobile plate sheets, determining the shape and size of an assembly material according to the multiple lengths of the sheets, and cutting into an assembly material; designing a lining plate die according to waste to be cut from the assembly material, andhollowing the lining plate die correspondingly to the waste to form a blanking hole, wherein the size of the blanking hole is larger than the blanking size of practically-cut waste; placing the assembly material on the lining plate die; performing laser cutting on the assembly material according to the shape of the automobile plate sheet and making the cut waste fall onto a lower waste conveying belt through the blanking hole of the lining plate die; and stacking the cut sheets. Due to the adoption of the method and the system, waste can be treated effectively, and the blanking efficiency is increased.

Description

technical field [0001] The invention relates to automobile manufacturing technology, in particular to a blanking method and system for automobile panels. Background technique [0002] The traditional blanking of automobile panels adopts mold blanking, and its equipment consists of: conveying unit, press unit and stacking unit. Simple blank shapes (such as rectangle, trapezoid and arc) can be cut by pendulum cutting, and blanks with complex curves can be blanked by mold. The blanking line needs to configure different blanking molds according to the size and shape of the blanks of the vehicle model, and produce different blanks by changing the molds. [0003] The operation efficiency of the auto sheet blanking line is very high, at 4 million to 6 million pieces per year. Calculated on the basis of 3800 hours per year, the average is about 25 tablets per minute. [0004] With the rapid development of high-power laser technology in recent years, many institutes and manufactur...

AI Technical Summary

Problems solved by technology

[0017] 3. The needles on the needle support conveyor chain are easy to cut and damage, and the small wastes are easy to get stuck on the conveyor belt

[0018] 4. The shape of the cutting area cannot be guaranteed

[0020] 5. It is difficult for the rear pinch roller to pass the material

[0021] During continuous feeding and cutting, when the sheet passes through the pinch roller, it is not only easy to strain the pinch roller, but also cause the material to jam or even break the belt

[0022] 6. The influence of strip deviation on shape cutting

[0023] The strip is conveyed by pinch rollers, and the spacing is more than 10m. The deviation of the strip will lead to batch waste of cutting operations

Therefore, the program must have a deviation correction centering device

[0024] 7. High accuracy requirements for slitting butt joint

The technical difficulty of this step-by-step blanking lies in the blanking of waste and the output per unit time of the production line

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