US 2022/0055086 A1 · ULTRA-LOW PRESSURE LIQUID FILLING FORMING SYSTEM AND METHOD FOR SPECIAL-SHAPED COMPONENT

Abstract

The present disclosure discloses an ultra-low pressure liquid filling forming system for a special-shaped component, including a control system, a supercharger, a driving device, a preforming unit, and a final forming unit. The present disclosure further provides an ultra-low pressure liquid filling forming method for a special-shaped component, including the following steps: S1: making an equal diameter cylindrical coil blank with an overlapping part in a longitudinal direction by using a plate blank; S2: bulging the equal diameter cylindrical coil blank into a variable diameter cylindrical prefabricated coil blank; S3: cutting and welding the overlapping part remaining on the variable diameter cylindrical prefabricated coil blank in the axial direction to obtain a variable diameter prefabricated tube blank; S4: filling liquid and press-forming the variable diameter prefabricated tube blank, so that the variable diameter prefabricated tube blank occurs compressive deformation, thereby forming the special-shaped component.

Claims20

Dependent claims

An ultra-low pressure liquid filling forming system for a special-shaped component, comprising:

a control system;
a preforming unit comprising a preforming die and a self-sealing liquid bag;
a supercharger having a liquid outlet and electrically connected to the control system, wherein the liquid outlet is in communication with the self-sealing liquid bag;
a final forming unit comprising a liquid filling press-forming die and two tube end seal-sealing devices, the tube end self-sealing devices comprising:
a tube end self-sealing punch;
and
an oil cylinder used for driving the tube end self-sealing punch, wherein one end of the tube end self-sealing punches is provided with a liquid through pipe, the liquid through pipe in communication with the liquid outlet;
and
a driving device electrically connected to the control system, wherein the driving device can drive the preforming die and the liquid filling press-forming die between an open position and a closed position.

6 more elements

An ultra-low pressure liquid filling forming method for a special-shaped component comprising the following steps:

S1:
making an equal diameter cylindrical coil blank with an overlapping part in a longitudinal direction by using a plate blank, wherein two ends of the plate blank are overlapped at an overlapping part;
S2:
arranging the equal diameter cylindrical coil blank in a mold cavity of a preforming die, bulging the equal diameter cylindrical coil blank through a self-sealing liquid bag with low pressure hydraulic force, and making the equal diameter cylindrical coil blank deform into a variable diameter cylindrical prefabricated coil blank, wherein the perimeter of the variable diameter cylindrical prefabricated coil blank is equal to that of the cross section of the special-shaped component;
S3:
cutting and welding the overlapping part remaining on the variable diameter cylindrical prefabricated coil blank in an axial direction to obtain a variable diameter prefabricated tube blank with a perimeter equal to that of the cross section of the special-shaped component;
and
S4:
arranging the variable diameter prefabricated tube blank in a mold cavity of a liquid filling press-forming die, filling a high-pressure liquid into the tube cavity of the variable diameter prefabricated tube blank through a supercharger to apply a supporting force to the tube cavity, and applying compressive deformation to the variable diameter prefabricated tube blank through the liquid filling press-forming die, so as to form the special-shaped component.

6 more elements

Dependencies are inferred from the claim text.

Ultra-low pressure liquid filling forming system and method for special-shaped component

Life of this patent

Ultra-low pressure liquid filling forming system and method for special-shaped component

Life of this patent

Abstract

Claims20