Machining system

Patent metadata

Field	Value
Publication number	US-11052467-B2
Application number	US-201816482064-A
Country	US
Kind code	B2
Filing date	Jan 4, 2018
Priority date	Jan 30, 2017
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

Provided is a mobile machining system for a turning machining of inner surfaces of hollow-cylindrical components, in particular for machining valve seats. The machining system includes a second drive train and the third drive train in each case which preferably have a gear mechanism, in particular a planetary gear mechanism, which is arranged between the respective motor and the associated gearwheel which projects outward from the rotational part. This leads to a simple, inexpensive and space-saving construction.

First claim

The invention claimed is:

1. A mobile machining system for turning machining of inner faces of hollow-cylindrical components comprising
a base part,
a rotational part of hollow configuration, which extends through the base part, is mounted on the base part such that the rotational part is rotatable about a C-axis of the machining system, and a first flange region is on an end side of the rotational part,
a guide rod which, at one of the guide rod's free ends, has a second flange region, which is connected fixedly to the first flange region of the rotational part such that the second flange region is rotatable with the first flange region,
a first motor, which is connected fixedly to the base part, wherein the first motor drives the guide rod via a first drive train such that the guide rod rotates about the C-axis,
a support which is held on the guide rod such that the support is moveable to and fro in directions defined by a Z axis of the machining system, which extends parallel to the C-axis,
a second motor, which is connected fixedly to the rotational part to rotate with the rotational part, is supplied with power via a slide ring, and drives the support along the Z-axis via a second drive train,
a tool holder, which is held on the support such that the tool holder is moveable in directions defined by an X-axis of the machining system, which X-axis extends perpendicularly with respect to the Z-axis,
a third motor, which is connected fixedly to the rotational part to rotate with the rotational part, is supplied with power via the slide ring, and drives the tool holder in the directions defined by the X-axis via a third drive train,
an outer clamping device, which is connected fixedly to the base part such that the outer clamping device is rotatably fixed relative to the base part, is designed to fasten the base part centrally to an end side of a component to be machined, and
an inner clamping device, which is mounted on the guide rod, is designed to support the machining system on an inner face of the component to be machined.

2. The machining system as claimed in claim 1 ,
wherein the second drive train has at least one gearwheel that is held fixedly in a first gearwheel shaft end region of a first gearwheel shaft so as to rotate with the first gearwheel shaft, the first gearwheel shaft extends through the rotational part and is driven by the second motor,
wherein the third drive train has at least one gearwheel that is held fixedly in a second gearwheel shaft end region of a second gearwheel shaft so as to rotate with the second gearwheel shaft, the second gearwheel shaft extends through the rotational part and is driven by the third motor,
wherein the at least one gearwheel of the second drive train and the at least one gearwheel of the third drive train are arranged in a central region of the rotational part and project outward from the rotational part,
wherein a shortest spacing between tip circle diameters of the at least one gearwheel of the second drive train and the at least one gearwheel of the third drive train being from 15 mm to 45 mm, and
wherein the second drive train and the third drive train in each case have at least another gearwheel in addition to the at least one gearwheel of each drive train, each of the at least another gearwheel is arranged rotatably on the guide rod within the second flange region and respectively meshes with the at least one gearwheel of the second drive train and the at least one gearwheel of the third drive train.

3. The machining system as claimed in claim 2 ,
wherein the second drive train and the third drive train in each case have a planetary gear, the planetary gear of the second drive train is arranged between the second motor and the at least one gearwheel of the second drive train, and the planetary gear of the third drive train is arranged between the third motor and the at least one gearwheel of the third drive train.

4. The machining system as claimed in claim 1 ,
wherein a plurality of guide rods of different diameter with associated supports, tool holders and inner clamping devices are provided, the plurality of guide rods having a respective second flange region for fastening to the first flange region of the rotational part.

5. The machining system as claimed in claim 1 , wherein the base part, the rotational part, the first motor, the second motor, and the third motor are combined in a single drive module.

Assignees

• Siemens Ag
• Siemens Energy Global Gmbh & Co Kg

Inventors

• Rynkowski Patrick
• Sellmann Stefan
• Tobisch Roger
• Vogt Felix
• Visajtaev Marat

Classifications

• B23B29/025 Primary

  Boring toolholders fixed on the boring bar · CPC title

• B23B29/03432

  radially adjustable during manufacturing · CPC title

• B23B2215/242

  Cylinder liners · CPC title

• B23B29/02

  Boring bars · CPC title

• B23B2215/72

  Tubes, pipes · CPC title