Flow lapping device for smoothing a surface of a workpiece

Abstract

Disclosed is a flow lapping device for smoothing at least one surface of at least one workpiece, preferably an impeller, by an abrasive fluid including at least one holding device for holding the workpiece, in particular including at least one holding plate, as well as at least one encasing device arranged around the holding device and within which the fluid can flow, wherein the holding device is at least partially supported, in particular fixed, by at least one inner wall section of the encasing device.

1 . Flow lapping device for smoothing at least one surface of at least one workpiece, by an abrasive fluid, comprising:
 at least one holding device for holding the workpiece and having at least one holding plate and at least one encasing device arranged around the holding device and within which the fluid can flow, wherein the holding device is at least partially supported by at least one inner wall section of the encasing device,   wherein the encasing device comprises at least a first and a second encasing part.   
     
     
         2 . Flow lapping device, in particular according to  claim 1 , further comprising at least one fluid guiding device which is arranged within the encasing device in order to divert the fluid within the encasing device at least in regions. 
     
     
         3 . (canceled) 
     
     
         4 . Flow lapping device according to  claim 1 , wherein the holding device is inserted into the encasing device and/or is clamped in the encasing device. 
     
     
         5 . Flow lapping device according to  claim 1 , wherein the encasing device and/or the first and/or the second encasing part, form(s) an annular jacket. 
     
     
         6 . Flow lapping device according to  claim 1 , wherein the at least one holding device is arranged at the level of a transition between the first and second encasing part. 
     
     
         7 . Flow lapping device according to  claim 1 , wherein on an inner wall of the encasing device at least one projection and/or at least one step is formed, on which the holding device is placed, and/or on one/the inner wall of the encasing device an annular receiving space is formed, wherein in the receiving space a circumferential edge of the holding device is received. 
     
     
         8 . Flow lapping device according to  claim 1 , wherein mutually adjacent ends of the first and of the second encasing part form a groove-shaped receiving space for receiving a circumferential edge of the holding device, wherein for that at least one of the mutually adjacent ends, both mutually adjacent ends have a step or a projection. 
     
     
         9 . Flow lapping device according to  claim 1 , wherein mutually adjacent ends of the first and of the second encasing part abut one another or form a gap. 
     
     
         10 . Flow lapping device according to  claim 1 , wherein
 a first closing device is arranged at a first end of the encasing device, wherein the first closing device comprises a first cylinder and/or a first pressure piston and/or   a second closing device is arranged at a second end of the encasing device wherein the second closing device comprises a second cylinder and/or a second pressure piston.   
     
     
         11 . Flow lapping device according to  claim 1 , comprising at least one fluid guiding device arranged within the encasing device to guide the fluid in a targeted manner past the workpiece and/or through the workpiece. 
     
     
         12 . Flow lapping device according to  claim 1 , further comprising:
 a first fluid guiding device which is arranged on a first side and/or is arranged inside the first encasing part, wherein at least one inner cross section of the first fluid guiding device changes in the direction of the holding device, and/or   a second fluid guiding device, which is arranged on a second side and/or is arranged inside the second encasing part, wherein at least one inner cross section of the second fluid guiding device changes in the direction of the holding device, and/or   comprising a third fluid guiding device, which is arranged on one/the second side and/or is arranged inside the second encasing part, wherein at least one outer cross section of the third fluid guiding device changes in the direction of the holding device, wherein the third fluid guiding device is formed compactly and/or is arranged inside the second fluid guiding device.   
     
     
         13 . Flow lapping device according to  claim 1 , comprising at least one spacer in order to space the workpiece from a cover part and/or a base part, wherein a spacer extension is provided in order to allow a greater spacing. 
     
     
         14 . Flow lapping device according to  claim 1 , wherein the holding device has at least one opening, which can be brought in alignment with at least one opening of at least one workpiece. 
     
     
         15 . Flow lapping device according to  claim 1 , comprising at least one fastening means for fastening at least one workpiece to the holding device. 
     
     
         16 . Flow lapping device according to  claim 1 , wherein the flow lapping device can be formed in multi-stage manner such that at least two holding devices are formed, wherein at least one workpiece can be arranged on each holding device and/or such that at least a third encasing part is provided. 
     
     
         17 . System for assembling a flow lapping device for smoothing at least one surface according to  claim 1 , wherein the system comprises the holding device comprising the at least one holding plate for holding the workpiece, as well as the at least one encasing device, within which the fluid can flow. 
     
     
         18 . System according to  claim 17  for assembling a flow lapping device, wherein the system comprises at least two different first and/or two different second and/or two different third fluid guiding devices, which can be arranged at the same location and/or differ by:
 an outer geometry and/or an inner geometry; and/or 
 a height; and/or 
 a diameter; and/or 
 a shape; and/or 
 a material. 
 
     
     
         19 . Arrangement, comprising at least one flow lapping device according to  claim 1 , as well as at least one workpiece, comprising:
 the at least one workpiece is adjacent to the holding device and lies on the holding device; and/or   at least one opening of the workpiece is at least in sections in alignment with at least one opening of the holding device and/or with at least one opening of at least one fluid guiding device; and/or   the at least one fluid guiding device is adjacent to the workpiece; and/or   the at least one fluid guiding device lies on the workpiece; and/or   the at least one fluid guiding device is arranged around the workpiece at least in sections.   
     
     
         20 . Method for assembling a flow lapping device according to  claim 1 , wherein the method comprises the following steps:
 a) arranging at least a part of the encasing device on a first closing device;   b) arranging the holding device in the encasing device;   c) arranging a second closing device on the encasing device.   
     
     
         21 . Method according to  claim 20 , wherein the holding device is arranged on at least one first fluid guiding device and/or at least one second fluid guiding device is arranged on the holding device. 
     
     
         22 . Method according to  claim 20 , wherein the holding device is fixed between the first encasing part and the second encasing part by pressurizing the first and/or second encasing part. 
     
     
         23 . Method for assembling an arrangement according to  claim 19 , wherein before or after step b) at least one workpiece is arranged on the holding device, wherein the workpiece is not pressurized and/or only comes into contact with the holding device and/or fastening device. 
     
     
         24 . Method according to  claim 23 , wherein at least one third fluid guiding device is arranged on the workpiece. 
     
     
         25 . Method for smoothing at least one workpiece, comprising the steps:
 providing an arrangement according to  claim 19 ;   flowing through the arrangement such that at least one surface of the workpiece is smoothed.