Method and device for connecting two components and an assembly of the components

Abstract

A method and device for connecting two components by way of high fluid pressure are provided, the components being pushed onto one another, and the two components then being pressed against one another by way of the high pressure. In order to interconnect components in a relatively simple and controlled manner without any limitation with regard to the minimum size of an inside diameter of the components and with regard to the design of the inner component, the outer component, the material of which has a yield point which is lower than that of the inner component, is plastically deformed by high-pressure action acting on the sliding assembly from outside, the inner component being elastically deformed. An assembly of the components is also provided.

1 . Device for connecting two components by way of high fluid pressure, comprising a high fluid-pressure generator and a deforming tool, which is connected fluidically to the high fluid-pressure generator and by which a sliding assembly of the components pushed onto one another can be acted on by the fluid pressure in such a manner that the components bear against one another in a press fit, 
 wherein the deforming tool surrounds the sliding assembly at least at a site of the press fit to be produced,    wherein the deforming tool has a pressure duct which, connected to the high-fluid-pressure generator, leads from outside into an impression of the tool, which receives the sliding assembly, and an outlet of the duct is located at the site of the press fit to be produced, and    wherein a sealing arrangement is arranged on an inner side of the impression on both sides of the site of the press fit to be produced, said sealing arrangements sealing said site axially in a high-pressure-tight manner.    
     
     
         2 . Device according to  claim 1 , wherein the sealing arrangement comprises an elastic sealing ring made of an elastomer, and a support ring made of a material of high Shore hardness which bears against the sealing ring on a side facing away from the site of the press fit.  
     
     
         3 . Device according to  claim 2 , wherein the sealing ring has an all-round sealing lip which protrudes obliquely into the impression of the deforming tool and counter to a direction of an axial pressure component of the high pressure deforming the outer component and which is supported by the support ring.  
     
     
         4 . Device according to  claim 1 , wherein the sealing arrangements are integrated into a sealing module which can be inserted into an all-round cutout of the impression of the deforming tool.  
     
     
         5 . Device according to  claim 2 , wherein the sealing arrangements are integrated into a sealing module which can be inserted into an all-round cutout of the impression of the deforming tool.  
     
     
         6 . Device according to  claim 3 , wherein the sealing arrangements are integrated into a sealing module which can be inserted into an all-round cutout of the impression of the deforming tool.  
     
     
         7 . Device according to  claim 4 , wherein, in addition to the sealing arrangements, the module comprises a spacer sleeve, which spaces the two sealing arrangements from one another, and a carrier for the sealing arrangements and the spacer sleeve.  
     
     
         8 . Device according to  claim 7 , wherein the pressure duct extends through a wall of the spacer sleeve.  
     
     
         9 . Device according to  claim 7 , wherein an inner side of the spacer sleeve forms a majority of the impression of the deforming tool along the site of the press fit to be produced.  
     
     
         10 . Device according to  claim 8 , wherein an inner side of the spacer sleeve forms a majority of the impression of the deforming tool along the site of the press fit to be produced.  
     
     
         11 . Device according to  claim 1 , wherein, on a side of the impression, the pressure duct opens into an all-round recess which extends along the site of the press fit to be produced.  
     
     
         12 . Device according to  claim 2 , wherein, on a side of the impression, the pressure duct opens into an all-round recess which extends along the site of the press fit to be produced.  
     
     
         13 . Device according to  claim 4 , wherein, on a side of the impression, the pressure duct opens into an all-round recess which extends along the site of the press fit to be produced.  
     
     
         14 . Device according to  claim 7 , wherein, on a side of the impression, the pressure duct opens into an all-round recess which extends along the site of the press fit to be produced.  
     
     
         15 . Device according to  claim 11 , wherein the all-round recess is covered by an elastic diaphragm towards the impression, said diaphragm being fastened to a wall of the impression or an inner side of a spacer sleeve.  
     
     
         16 . Device according to  claim 12 , wherein the all-round recess is covered by an elastic diaphragm towards the impression, said diaphragm being fastened to a wall of the impression or an inner side of a spacer sleeve.  
     
     
         17 . Device according to  claim 13 , wherein the all-round recess is covered by an elastic diaphragm towards the impression, said diaphragm being fastened to a wall of the impression or an inner side of a spacer sleeve.  
     
     
         18 . Device according to  claim 14 , wherein the all-round recess is covered by an elastic diaphragm towards the impression, said diaphragm being fastened to a wall of the impression or an inner side of the spacer sleeve.  
     
     
         19 . Device according to  claim 1 , 
 wherein an all-round cutout, which is open on one side axially and receives the sealing arrangements, and a spacer sleeve which spaces the sealing arrangements from one another, is recessed into the impression,    wherein an end ring of an inelastic material bears against the sealing arrangement lying at an open end of the cutout, and    wherein the device further comprises an axial piston, by which the end ring can be acted on.    
     
     
         20 . Device according to  claim 2 , 
 wherein an all-round cutout, which is open on one side axially and receives the sealing arrangements, and a spacer sleeve which spaces the sealing arrangements from one another, is recessed into the impression,    wherein an end ring of an inelastic material bears against the sealing arrangement lying at an open end of the cutout, and    wherein the device further comprises an axial piston, by which the end ring can be acted on.    
     
     
         21 . Device according to  claim 3 , 
 wherein an all-round cutout, which is open on one side axially and receives the sealing arrangements, and a spacer sleeve which spaces the sealing arrangements from one another, is recessed into the impression,    wherein an end ring of an inelastic material bears against the sealing arrangement lying at an open end of the cutout, and    wherein the device further comprises an axial piston, by which the end ring can be acted on.    
     
     
         22 . Device according to  claim 4 , 
 wherein an all-round cutout, which is open on one side axially and receives the sealing arrangements, and a spacer sleeve which spaces the sealing arrangements from one another, is recessed into the impression,    wherein an end ring of an inelastic material bears against the sealing arrangement lying at an open end of the cutout, and    wherein the device further comprises an axial piston, by which the end ring can be acted on.    
     
     
         23 . Device according to  claim 11 , 
 wherein an all-round cutout, which is open on one side axially and receives the sealing arrangements, and a spacer sleeve which spaces the sealing arrangements from one another, is recessed into the impression,    wherein an end ring of an inelastic material bears against the sealing arrangement lying at an open end of the cutout, and    wherein the device further comprises an axial piston, by which the end ring can be acted on.    
     
     
         24 . Device according to  claim 15 , 
 wherein an all-round cutout, which is open on one side axially and receives the sealing arrangements, and a spacer sleeve which spaces the sealing arrangements from one another, is recessed into the impression,    wherein an end ring of an inelastic material bears against the sealing arrangement lying at an open end of the cutout, and    wherein the device further comprises an axial piston, by which the end ring can be acted on.    
     
     
         25 . Device according to  claim 19 , wherein the axial piston has an axial passage opening for guiding-through the components pushed onto one another.  
     
     
         26 . Device according to  claim 19 , wherein the axial piston is designed as a hollow screw which can be screwed into an internal thread of a cross-sectionally widened bore adjacent to the open end of the cutout.  
     
     
         27 . Device according to  claim 25 , wherein the axial piston is designed as a hollow screw which can be screwed into an internal thread of a cross-sectionally widened bore adjacent to the open end of the cutout.  
     
     
         28 . Device according to  claim 19 , wherein the axial piston can be operated hydraulically.  
     
     
         29 . Device according to  claim 25 , wherein the axial piston can be operated hydraulically.  
     
     
         30 . Device according to  claim 1 , wherein the deforming tool is of one-piece design.  
     
     
         31 . Device according to  claim 2 , wherein the deforming tool is of one-piece design.  
     
     
         32 . Device according to  claim 3 , wherein the deforming tool is of one-piece design.  
     
     
         33 . Device according to  claim 4 , wherein the deforming tool is of one-piece design.  
     
     
         34 . Device according to  claim 7 , wherein the deforming tool is of one-piece design.  
     
     
         35 . Device according to  claim 11 , wherein the deforming tool is of one-piece design.  
     
     
         36 . Device according to  claim 19 , wherein the deforming tool is of one-piece design.  
     
     
         37 . An apparatus for connecting an inner and outer component by way of fluid pressure, comprising: 
 a fluid-pressure generator, and    a deforming tool being connected fluidically to the fluid-pressure generator, whereby the components pushed onto one another can be operatively acted upon by way of the fluid pressure so that the components bear against one another in a press fit,    wherein the deforming tool operatively surrounds the components at least at a site of the press fit to be produced,    wherein the deforming tool has a pressure duct which is connected to the fluid-pressure generator and leads from outside into an impression of the deforming tool,    wherein the impression operatively receives the components,    wherein an outlet of the duct is located at the site of the press fit to be produced, and    wherein a sealing arrangement is arranged on an inner side of the impression on both sides of the site of the press fit to be produced, the sealing arrangement operatively sealing the site axially in a high-pressure-tight manner.