Adjustable Z-shaped offset bending mold

Abstract

The invention discloses an adjustable Z-shaped offset bending mold and belongs to a sheet metal bending mold. The adjustable Z-shaped offset bending mold is characterized by mainly comprising an upper mold and a lower mold, wherein the upper mold mainly comprises an upper mold seat, an upper fixed press mold, an upper adjustable press mold, an upper combined gasket and an upper fixed bolt; the lower mold mainly comprises a lower mold seat, a lower fixed press mold, a lower adjustable press mold and a lower fixed bolt; the lower part of the upper mold seat is provided with a right-angled upperinclined through groove which forms a delta included angle with the pressure line of a bending machine; the upper inclined through groove is internally and correspondingly provided with the upper fixed press mold, the upper adjustable press mold and the upper combined gasket; the upper part of the lower mold seat is provided with a right-angled lower inclined through groove which also form a delta included angle with a vertical central line; the lower inclined through groove is internally and correspondingly provided with the lower fixed press mold, the lower adjustable press mold and the lower combined gasket; all the bottom surfaces or top surfaces of the upper fixed press mold, the lower fixed press mold, the upper adjustable press mold and the lower adjustable press mold are inclined surfaces which form theta included angles with the bottom surfaces or top surfaces of the upper mold seat and the lower mold seat correspondingly; and the upper mold and the lower mold are combined, and then the Z-shaped workpiece is formed. The adjustable Z-shaped offset bending mold has the advantages that the cost is low and the quality is good.

Description

technical field [0001] The invention belongs to a sheet metal bending die, in particular to a Z-shaped sheet metal bending die. Background technique [0002] The sheet metal industry often encounters the bending of Z-shaped parts. The height (H value) and plate thickness (t) of this Z-shaped part often change. Therefore, different bending methods must be designed for different plate thicknesses and different heights. The bending mold not only increases the workload of the designer, but also because the mold cannot be used universally, the production cycle of the mold is long, which increases the production cost and reduces the production efficiency; and the current Z-shaped bending mold, due to the The direction of the pressure is inconsistent with the direction of the bending force of the Z-shaped part. There is an angle between the directions of the two forces. There is a lateral force during bending, which is easy to change the gap between the molds and make the dimension...

AI Technical Summary

Problems solved by technology

[0002] The sheet metal industry often encounters the bending of Z-shaped parts. The height (H value) and plate thickness (t) of this Z-shaped part often change. Therefore, different bending methods must be designed for different plate thicknesses and different heights. The bending mold not only increases the workload of the designer, but also because the mold cannot be used universally, the production cycle of the mold is long, which increases the production cost and reduces the production efficiency; and the current Z-shaped bending mold, due to the The direction of the pressure is inconsistent with the direction of the bending force of the Z-shaped part. There is an angle between the directions of the two forces. There is a lateral force during bending, which is easy to change the mold gap and make the dimension of the Z-shaped workpiece after bending unstable. At the same time, it is troublesome to adjust the gap between the upper and lower molds of the mold, and the material and precision requirements of the upper and lower molds are high, and the structure is complex, which brings difficulties to the mold processing and increases the processing cost of the mold

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