High-precision flattening and shock absorbing mechanism for thin steel sheet

Abstract

The invention relates to the technical field of laser cutting, in particular to a flattening mechanism. A high-precision flattening and shock absorbing mechanism for a thin steel sheet comprises a support member which adopts a flattening support member; the flattening support member is of a strip shape; and a groove is formed in the top of the flattening support member. One end of the flattening support member is connected with a horizontal moving mechanism; a dust sucking pipe is arranged at the other end of the flattening support member; one end of the dust sucking pipe is communicated with the groove; and the other end of the dust sucking pipe is connected with a dust collector. Due to the adoption of the technical scheme, the flattening support member of the thin steel sheet is smaller than 10 mum in the processing flatness error and is smaller than 20 mum in composite error. According to the high-precision flattening and shock absorbing mechanism disclosed by the invention, the dust sucking pipe is additionally arranged, so that a better dust sucking effect can be achieved.

Description

[0001] technical field [0002] The invention relates to the technical field of laser cutting, in particular to a tensioning mechanism. [0003] Background technique [0004] In the prior art, in order to ensure that the position of the laser focus relative to the processed thin steel sheet does not change much, elastic elements are often used to support the thin steel sheet, or the Z-axis is followed, or a sheet with higher rigidity and greater tension is used. Tight frame and other methods, but they all have certain disadvantages. The method of using elastic elements to support the thin steel sheet is not suitable for the occasion where the cutting head moves; when using the Z-axis follow-up, it requires not only a set of expensive height measuring system, but also a set of Z-axis control system, which not only increases the cost, but also The Z-axis weight is increased, the system speed is reduced, and the probability of steel sheet vibration is also greater; when using...

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Problems solved by technology

[0004] In the prior art, in order to ensure that the position of the laser focus relative to the processed thin steel sheet does not change much, elastic elements are often used to support the thin steel sheet, or the Z-axis is followed, or a sheet with higher rigidity and greater tension is used. Tight frame and other methods, but they all have certain disadvantages

The method of using elastic elements to support thin steel sheets is not suitable for occasions where the cutting head moves; when using Z-axis follow-up, it requires both an expensive height measurement system and a Z-axis control system, which not only increases the cost, but also The Z-axis weight is increased, the system speed is reduced, and the probability of steel sheet vibration is also greater; when using a tensioning frame with higher rigidity and greater tension, the greater tension will easily lead to plastic deformation of the thin steel sheet and be scrapped

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