Honing tool

A method of honing an inner surface of an opening in a workpiece with a honing tool for honing an inner surface of an opening in a workpiece, comprising a tool body extending in an axial direction (A) and having a honing section which comprises a group of hone strips, characterised in that the honing tool comprises a workpiece checking element for checking a size and/or a position of the opening, the workpiece checking element being arranged on the tool body so as to be movable relative to the tool body, preferably in the axial direction (A), in order to check during the insertion of the honing tool into the opening whether the opening in the workpiece has a sufficient opening width and/or to check for a positioning or alignment error of the opening of the workpiece, wherein the workpiece checking element is biased into an initial position (AS) and is arranged on the tool body such that the workpiece checking element is moved out of the initial position (AS) when the workpiece checking element comes into contact with the workpiece, wherein the workpiece checking element is coupled to a detection device which is adapted to detect a movement of the workpiece checking element relative to the tool body, wherein the detecting device is coupled to a controller such that the controller interrupts the insertion of the honing tool into the opening if the detecting device detects a movement of the workpiece checking element relative to the tool body, wherein the method comprises the following steps in succession:

• a) axially inserting the honing tool into the opening and pre-checking, in particular of an opening width, of the opening in the workpiece by means of the workpiece checking element;
• b) honing the opening by the hone strips of the honing section, preferably measuring the opening width via an air measuring nozzle;
• preferably c) axially moving the honing tool, in particular further axially inserting the honing tool into the opening, and re-measuring the opening width via an air measuring nozzle which is spaced apart from the honing section of step b) in the axial direction (A);
• preferably d) axially moving the honing tool in particular further axially inserting the honing tool into the opening, and subsequently honing the opening by the hone strips of the second honing section, preferably measuring the opening width via an air measuring nozzle which is arranged adjacent to the hone strips of the second honing section when viewed in the axial direction (A);
• preferably e) re-measuring the opening width via an air-measuring nozzle which is arranged adjacent to the hone strips of the second honing section of step d) when viewed in the axial direction (A), or axially moving the honing tool in particular further axially inserting the honing tool into the opening, and re-measuring the opening width via an air-measuring nozzle which is spaced apart from the second honing section of step d) in the axial direction (A);
• preferably f) axially moving the honing tool, in particular further axially inserting the honing tool into the opening, and subsequently brushing of the opening by the brush section of the honing tool;
• g) axially retracting the honing tool from the opening.