Tool for the electrochemical machining of a fuel injection device
AssigneeRobert Bosch GmbH
InventorsChristian Ziegler, Steffen Beetz, Rudolf Scherer, Stefan Moser
Life of this patent
Estimating the term…
Abstract
The invention relates to a tool for the electrochemical machining of a fuel injection device, the tool having an electrode holder and an electrode element which forms a cathode during the machining operation in order to be able to electrochemically remove material from the fuel injection device in a machining region. The electrode element is arranged in such a way that it can be displaced in relation to the electrode holder.
Claims20
A tool for electrochemical machining of a fuel injection device, the tool comprising:
- an electrode holder and an electrode element, which during the machining of the fuel injection device the electrode element forms a cathode thereby enabling electrochemical removal of material in a machining region of the fuel injection device which forms an anode,
- wherein the electrode element is disposed movably relative to the electrode holder and is supported pivotably on the electrode holder;
- an actuating element which varies the position of the electrode element relative to the machining region;
- and
- a spring pressing the electrode holder and the actuating element at least indirectly toward one another.
A tool for electrochemical machining of a fuel injection device, the tool comprising:
- an electrode holder and an electrode element, which during the machining of the fuel injection device the electrode element forms a cathode thereby enabling electrochemical removal of material in a machining region of the fuel injection device which forms an anode,
- wherein the electrode element is disposed movably relative to the electrode holder and is supported pivotably on the electrode holder;
- an actuating element which varies the position of the electrode element relative to the machining region;
- a spring pressing the electrode holder and the actuating element at least indirectly toward one another;
- and
- a sliding block received in a guide region, which connects the actuating element and the electrode element with one another.
A fuel injection device having:
- a housing and at least two chambers embodied in the housing for receiving and/or carrying fuel, the chambers adjoining one another and forming a sharp-edged machining region which has been deburred with a tool;
- said tool comprising
- an electrode holder and an electrode element, which during the machining of the fuel injection device the electrode element forms a cathode thereby enabling electrochemical removal of material in a machining region of the fuel injection device which forms an anode and the electrode element is disposed movably relative to the electrode holder and is supported pivotably on the electrode holder,
- an actuating element which varies the position of the electrode element relative to the machining region, and
- a spring pressing the electrode holder and the actuating element at least indirectly toward one another.
A method for producing a fuel injection device, having a housing and having at least two chambers, embodied in the housing, for receiving and/or carrying fuel, the chambers adjoining one another and forming a sharp-edged machining region, the method comprising:
- deburring the machining region with a tool;
- said tool comprising an electrode holder and an electrode element, which during the machining of the fuel injection device the electrode element forms a cathode thereby enabling electrochemical removal of material in a machining region of the fuel injection device which forms an anode and the electrode element is disposed movably relative to the electrode holder and is supported pivotably on the electrode holder,
- an actuating element which varies the position of the electrode element relative to the machining region, and
- a spring pressing the electrode holder and the actuating element at least indirectly toward one another.
Dependencies are inferred from the claim text.