Metal sheet machining centering device and metal sheet machining centering method

Abstract

The invention discloses a metal sheet machining centering device and a metal sheet machining centering method. The metal sheet machining centering device comprises two side guide plates, pressure relays, a metal detector, a laser tachometer and the like. The two side guide plates are symmetrical with each other along a straight center line and are parallelly opposite to each other, the pressure relays are arranged on the side guide plates, each side guide plate is fixedly mounted at one end of a movable support, each movable support is connected with a hydraulic cylinder with a displacement sensor, the displacement sensor of each hydraulic cylinder is electrically connected with a controller, and the metal detector is used for detecting the length of a metal sheet. The metal sheet machining centering method includes a step of enabling the two side guide plates to work simultaneously to respectively push and center the metal sheet and a step of enabling the two side guide plates to individually work to respectively push and center the metal sheet according to the thickness and the length of the metal sheet. Compared with the prior art, the metal sheet machining centering device and the metal sheet machining centering method have the advantage that the problem that metal sheets with low deformation resistance or thin metal sheets cannot be centered by an existing centering device is solved.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a metal plate processing centering device and method. Background technique [0002] When thin metal plates are rolled, cut to length or cut to length, it is often necessary to center the metal plates with a centering device installed before and after the rolling mill or scissors, so that the center line of the metal plate is aligned with the rolling center line. Overlapping ensures good symmetry of the metal sheet in the subsequent processing process, so as to improve the dimensional control accuracy of the metal sheet and the stability of the processing process. At present, among the commonly used devices for centering metal sheets, there is a type of centering device with parallel side guides, such as figure 1 with figure 2 Shown: This centering device includes two sets of upper push rods and lower push rods respectively arranged in parallel on ...

AI Technical Summary

Problems solved by technology

However, this device is only suitable for the centering of metal plates with a thickness greater than a certain value. For metal plates with small or thinner deformation resistance, if this device is still used to center such metal plates, it will be difficult due to the clamping pressure value. If it is too low, the action threshold of the pressure sensor has not been reached, causing the hydraulic cylinder to work all the time and causing the metal sheet to be severely clamped and deformed by overclamping, which will have a negative impact on the quality of the finished product of the metal sheet

The traditional solution is: adjust the working pressure of the hydraulic cylinder or the action threshold of the pressure relay according to the thickness of the metal sheet. The thinner the metal sheet, the lower the working pressure of the hydraulic cylinder or the action threshold of the pressure relay. To avoid the deformation of the metal sheet by clamping, its disadvantage is that it is difficult to find out the exact corresponding relationship, and it is not convenient for online adjustment

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