Gas-charging and flanging machine

Abstract

A gas-charging and flanging machine (10) includes a spin-and-press flanging device (12) for flanging a workpiece (20). The spin-and-press flanging device includes a spin-and-press mechanism (123), and the spin-and-press mechanism includes a spin-and-press wheel (123a) formed with a slant position and a flat position. The slant position is used for pressing a corresponding slant-forming position of the workpiece to form a slanted face, and the flat position is used for pressing and flattening the slanted face of the workpiece. The spin-and-press wheel displaces axially under control of an external force exerted on the spin-and-press mechanism so that a working face facing the workpiece is switchable between the slant position and the flat position. Less pressure is required for the gas-charging and flanging machine to flange a workpiece, as compared to traditional flanging machines.

What is claimed is: 
     
         1 . A gas-charging and flanging machine, comprising a spin-and-press flanging device for flanging a workpiece, the spin-and-press flanging device comprising a spin-and-press mechanism, and the spin-and-press mechanism comprising a spin-and-press wheel formed with a slant position and a flat position, wherein the slant position is used for pressing a corresponding slant-forming position of the workpiece to form a slanted face, the flat position is used for pressing and flattening the slanted face of the workpiece, the spin-and-press wheel displaces axially under control of an external force exerted on the spin-and-press mechanism so that a working face facing the workpiece is switchable between the slant position and the flat position. 
     
     
         2 . The gas-charging and flanging machine according to  claim 1 , wherein the spin-and-press mechanism further comprises a first bearing, a second bearing and a compressing spring, the spin-and-press wheel comprises a spin-and-press portion and a spin-and-press shaft connected to the spin-and-press portion, and the spin-and-press portion comprises a first end, a second end opposite to the first end, and a spin-and-press face connecting the first end and the second end, wherein the spin-and-press face is used for spinning and pressing the workpiece, the spin-and-press face is formed with a linear spin-and-press section and a circular arc spin-and-press section connected to the linear spin-and-press section, the linear spin-and-press section is formed with the flat position, the circular arc spin-and-press section is formed with the slant position, a front end of the spin-and-press shaft is connected to the second end, the first and second bearings and the compressing spring are sleeved on the spin-and-press shaft, the compressing spring is interposed between the first bearing and the second bearing, and the spin-and-press wheel is movable in an axial direction of the spin-and-press shaft. 
     
     
         3 . The gas-charging and flanging machine according to  claim 2 , wherein an adjusting pad is interposed between the first end and the first bearing. 
     
     
         4 . The gas-charging and flanging machine according to  claim 3 , wherein a locking nut is fixed to a rear end of the spin-and-press shaft. 
     
     
         5 . The gas-charging and flanging machine according to  claim 4 , wherein the spin-and-press flanging device comprises a sealing wheel mounting disk and a guiding mechanism, the guiding mechanism and the spin-and-press mechanism are installed in the sealing wheel mounting disk, and the guiding mechanism is used for straightening the workpiece such that the workpiece is disposed coaxially with the spin-and-press flanging device. 
     
     
         6 . The gas-charging and flanging machine according to  claim 5 , wherein the first bearing, the second bearing and the compressing spring are located between the rear end of the spin-and- press shaft and the second end, a spin-and-press shaft end cover is fixed on a surface of an outer side of the sealing wheel mounting disk, and the locking nut and the rear end of the spin-and- press shaft expose outside through the spin-and-press shaft end cover. 
     
     
         7 . The gas-charging and flanging machine according to  claim 6 , wherein the sealing wheel mounting disk has a cylindrical shape, the number of the spin-and-press mechanism is three, the three spin-and-press mechanisms are evenly distributed along a circumferential direction of the sealing wheel mounting disk. 
     
     
         8 . The gas-charging and flanging machine according to  claim 7 , wherein the spin-and-press shaft is disposed along a radial direction of the sealing wheel mounting disk, and the first end of the spin-and-press portion faces a center of the sealing wheel mounting disk. 
     
     
         9 . The gas-charging and flanging machine according to  claim 8 , wherein the number of the guiding mechanism is three, the three guiding mechanisms are evenly distributed along the circumferential direction of the sealing wheel mounting disk, and the spin-and-press mechanisms are spaced apart from the guiding mechanisms. 
     
     
         10 . The gas-charging and flanging machine according to  claim 9 , wherein each of the guiding mechanisms comprises a guiding shaft, a guiding wheel and a guiding bearing, the guiding shaft is fixed in the sealing wheel mounting plate, the guide wheel is mounted on the guiding shaft, and the guiding bearing is interposed between the guiding wheel and the guiding shaft.