Transparent manual clamping supporting frame of rectangular pipe plate laser cutting machine

The invention discloses a transparent manual clamping supporting frame of a rectangular pipe plate laser cutting machine. A pneumatic chuck with four claws clamped two by two, a round pipe vertical adjustable support and a transparent type manual two-by-two clamping axial moving support are sequentially connected to the side face of the cutting machine, and a rectangular pipe with cutting is jacked by an axially-positioned bracket; a base with the adjustable height, a front and back positioning plate and a transparent type manual two-by-two clamping supporting frame are sequentially connected; two-by-two clamping jack columns with brackets are located between a manual clamping disc A and a manual clamping disc B; and a supporting roller frame is connected to the lower portions of the manual clamping disc A and the manual clamping disc B. The transparent manual clamping supporting frame is suitable for clamping the rectangular pipe and also can clamp a round pipe and a square pipe, and the transparent manual clamping supporting frame is high in generality, wide in application range and worth popularizing.