Device for mechanically processing a workpiece

Abstract

A device for mechanically processing a workpiece is provided. The device includes a rotating device and a holding adapter which are mechanically intercoupled such that the rotating device generates a rotation of the holding adapter about a rotation axis, while the holding adapter holds a clamping part for the mechanical treatment of the workpiece such that the holding adapter rotation axis and a longitudinal axis of the clamping part enclose an angle of more than zero degrees.

Claims

1. A device for mechanically processing a metallic workpiece, comprising: a rotating device; and a holding adapter, wherein the rotating device and the holding adapter are mechanically intercoupled such that the rotating device generates a rotation of the holding adapter about a rotation axis, and the holding adapter holds a clamping part for mechanical treatment of the workpiece such that the rotation axis and a longitudinal axis of the clamping part enclose an angle of more than zero degrees, the holding adapter is circular-cylindrical, an end side of the holding adapter facing away from the rotating device is obliquely cut off at a pre-defined angle relative to a longitudinal axis of the circular-cylindrical holding adapter, an equalization device of the holding adapter configured to equalize an imbalance about the rotating device rotation axis caused by the rotation axis being at the angle of more than zero degrees from the longitudinal axis of the clamping part, the holding adapter along the rotation axis has a greater axial length than the equalization device, a diameter of a circle defined by the holding adapter and a diameter of a circle defined by the equalization device are identical, the holding adapter has a flange bush surrounding a clamping bush, the flange bush having a beveled surface at an end of the flange bush facing away from the rotating device, and the clamping bush in a clamped state exerts a radial force on the clamping part.

2. The device as claimed in claim 1, wherein the flange bush is composed of aluminum and is hard-anodized.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows in each case one section through a workpiece before (FIG. 1a)) and after (FIG. 1b)) mechanical processing in accordance with an embodiment of the present invention;

(2) FIG. 2 shows a section through a device for mechanical processing in accordance with an embodiment of the present invention, having a clamped clamping part;

(3) FIG. 3 shows a lateral illustration of the device of FIG. 2; and

(4) FIG. 4 shows a spatial illustration of the device of FIG. 2.

DETAILED DESCRIPTION OF THE DRAWINGS

(5) FIG. 1 shows a workpiece 100 before (FIG. 1a)) and after (FIG. 1b)) mechanical and subtractive processing.

(6) The mechanical processing herein lies in that an end side of the per se circular-cylindrical work piece 100 is beveled at a pre-defined angle, presently in an exemplary manner 25°. This is performed in that material of the workpiece 100 is subtracted at said end side. The processing in the example shown likewise leads to a shortening of the length of the workpiece 100.

(7) The following images FIG. 2 to FIG. 4 show an example design embodiment of a device 1 for holding a clamping part 101.

(8) The clamping part 101 herein, depending on the design embodiment of the device 1 or depending on the application, is either the workpiece 100 per se or a tool by way of which the workpiece 100 is processed.

(9) In the processing, the workpiece 100 is thus in each case processed by a tool (not illustrated here), wherein the clamping part 101 that is fastened in the device 1 for processing is rotated about a rotation axis 4 by the device 1.

(10) The clamping part 101 here is a particularly rotationally symmetrical about the longitudinal axis 5.

(11) The device 1 possesses an actual rotating device 2 which causes the rotations about the rotation axis 4.

(12) The holding adapter 3 is present so as to be mechanically coupled to the rotating device 2, said holding adapter 3 being the actual support of the clamping part 101. The holding adapter 3 herein can be removed in an arbitrary manner from the rotating device 2. In the design embodiment shown, a flange is connected to the rotating device 2 by way of a tie rod. Instead of the lever mechanism illustrated here for fastening the holding adapter 3, a hydraulic mechanism having a corresponding reservoir is also to be considered, for example.

(13) The holding adapter 3 furthermore possesses a flange bush 31. A recess in which a clamping bush 32 is disposed is present in that end side of the flange bush 31 that faces away from the rotating device 2.

(14) The clamping bush 32 in turn contacts further components as component parts of the holding adapter 3. The components in their entirety have the effect that the clamping bush 32 in a clamped state exerts a radial force on the clamping part 101, thus fixedly holding the latter.

(15) On account of the particular design embodiment of the holding adapter 3, the clamping part 101 is held or fixed such that a longitudinal axis 5 of the clamping part 101 (and here in particular also of the clamping bush 32) and the rotation axis 4 conjointly enclose an angle of more than zero. In other words, the clamping part 101 is located so as to be oblique in the holding adapter 3.

(16) As can be seen in the image FIG. 2, the oblique position affects the processing. The clamping part 101 here is simultaneously the workpiece 100, the end side thereof having been processed in the shape illustrated. When the tool has thus been moved at a right angle in relation to the rotation axis 4, the end side of the workpiece 100 has thus also been subtracted in an oblique manner.

(17) The flange bush 31 has a substantially circular-symmetrical shape and here is in particular the cylinder. That end side 30 of the flange bush 31 that faces away from the rotating device 2 is partially beveled. This permits the assembly of the components of the holding adapter 3, mentioned above, for implementing the clamping function, for example.

(18) The flange bush 31 in the exemplary design embodiment shown is composed substantially of aluminum and is hard-anodized. This reduces the weight of the holding adapter 3, on the one hand, and on the other hand enhances the durability of the holding adapter 3.

(19) Since the clamping part 101 is located so as to be oblique in the device 1, an imbalance would be created by the rotation about the rotation axis 4.

(20) Such an imbalance in the embodiment of the device 1 shown is minimized or compensated for by an equalization device 6. The equalization device 6 is thus also part of the holding adapter 3 since the imbalance depends inter alia on the angle of the oblique position of the clamping bush 32, or of the clamping part 101, respectively. Therefore, the equalization device 6 has in each case also to be adapted to the orientation of the clamping part 101 and the properties of the latter.

(21) The equalization device 6 in the design embodiment shown, like the holding adapter 3, is also designed so as to be circular-cylindrical, wherein the flange bush 31 and the equalization device 6 define in each case a circle having a substantially identical radius. The equalization device 6 in the version illustrated thus corresponds to the portion of the missing end side of the flange bush 31.

(22) It can furthermore be seen that the equalization device 6 along the rotation axis 4 has a smaller axial extent than the flange bush 31. A shoulder thus exists on the end side 30 of the holding device 3.

(23) The equalization device 6 in the design embodiment shown is connected to the flange bush 31 by way of a screw.

(24) The device 1 has the advantage that an air contact check can be carried out, so as to identify the contact of the clamping part 101 by directing an airflow through the contact face of the clamping part 101 on the holding adapter 3. Moreover, a higher stability in the fixing of the clamping part 101 results on account of the axial traction effect.

(25) It can be seen in the lateral view of FIG. 3 that the flange bush 31 extends farther toward the front than the equalization device 6. It can furthermore be seen that, on account of the equalization device 6, an overall largely circular-cylindrical shape of the holding adapter 3 results again about the rotation axis 4. A largely rotationally symmetrical shape of the holding adapter 3 and the equalization device 6 is thus present. The longitudinal axis 5 of the clamping part 101, or of the clamping bush 32, respectively, is also plotted here, said longitudinal axis 5 conjointly with the rotation axis 4 forming the angle of more than zero degrees.

(26) FIG. 4 shows how the clamping part 101 is surrounded by the clamping bush 32. The partial bevel of the end side of the flange bush 31, and the equalization of the bevel of the holding adapter 3 by way of the equalization device 6, can furthermore be seen.

(27) The foregoing disclosure has been set forth merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.