Machine Tool System

Abstract

A machine tool system includes at least one portable machine tool and at least one energy storage apparatus. The at least one portable machine tool includes at least one tool receptacle configured to be arrange a machining tool, and at least one receiving interface. The at least one energy storage apparatus is configured to be arranged on the at least one receiving interface of the at least one portable machine tool. At least in a state when the at least one energy storage apparatus is arranged on the at least one receiving interface, the at least one energy storage apparatus is arranged at least for the most part within a boundary region of the at least one tool receptacle.

Claims

1. A machine tool system, comprising: at least one portable machine tool including: at least one tool receptacle configured to arrange a machining tool; and at least one receiving interface; at least one energy storage apparatus configured to be arranged on the at least one receiving interface of the at least one portable machine tool, wherein, at least in a state, when the at least one energy storage apparatus is arranged on the at least one receiving interface, the at least one energy storage apparatus is arranged at least for the most part within a boundary region of the at least one tool receptacle.

2. The machine tool system as claimed in claim 1, wherein the at least one tool receptacle defines an axis that runs through a centroid of a tool receiving face of the at least one tool receptacle, runs at least substantially perpendicularly with respect to the tool receiving face, and intersects the at least one energy storage apparatus.

3. The machine tool system as claimed in claim 1, wherein, at least in a state when the at least one energy storage apparatus is arranged on the at least one receiving interface, the at least one energy storage apparatus is arranged between a handle region of a housing unit of the at least one portable machine tool and the at least one tool receptacle, along a movement axis of the at least one tool receptacle.

4. The machine tool system as claimed in claim 1, wherein, at least in a state when the at least one energy storage apparatus is arranged on the at least one receiving interface, the at least one energy storage apparatus is covered at least partially on at least two sides by a housing unit of the at least one portable machine tool.

5. The machine tool system as claimed in claim 1, wherein, at least in a state when the at least one energy storage apparatus is arranged on the at least one receiving interface, the at least one energy storage apparatus is arranged at least partially between a handle region of a housing unit of the at least one portable machine tool and a drive unit of the at least one portable machine tool, along a movement axis of the at least one tool receptacle.

6. The machine tool system as claimed in claim 1, wherein, at least in a state when the at least one energy storage apparatus is arranged on the at least one receiving interface, the at least one energy storage apparatus is arranged offset laterally with respect to a drive unit of the at least one portable machine tool.

7. The machine tool system as claimed in claim 1, wherein a drive unit of the at least one portable machine tool is arranged offset laterally with respect to a movement axis of the at least one tool receptacle.

8. The machine tool system as claimed in claim 1, wherein the at least one receiving interface has includes at least one guide element defining a longitudinal axis that runs at least substantially transversely with respect to a movement axis of the at least one tool receptacle.

9. The machine tool system as claimed in claim 8 wherein the longitudinal axis of the at least one guide element runs at least substantially parallel to a tool receiving face of the at least one tool receptacle.

10. The machine tool system as claimed in claim 1, wherein the portable machine tool is configured as a grinding machine.

11. The machine tool system as claimed in claim 1, wherein the at least one energy storage apparatus is configured to be arranged removably on the at least one receiving interface.

Description

DRAWING

[0017] Further advantages result from the following description of the drawing. Two exemplary embodiments of the invention are shown in the drawing. The drawing, the description and the claims contain numerous features in combination. A person skilled in the art will expediently also consider the features individually and combine them to form appropriate further combinations.

[0018] In the drawing:

[0019] FIG. 1 shows a machine tool system according to the invention having at least one portable machine tool according to the invention and having at least one energy storage apparatus which is arranged on the portable machine tool, in a diagrammatic illustration,

[0020] FIG. 2 shows a plan view of the machine tool system according to the invention, at least one housing element of a housing unit of the machine tool according to the invention being removed, in a diagrammatic illustration,

[0021] FIG. 3 shows a side view of the machine tool system according to the invention, at least the housing element of the housing unit of the machine tool according to the invention being removed, in a diagrammatic illustration,

[0022] FIG. 4 shows an alternative machine tool system according to the invention having at least one alternative portable machine tool and having at least one energy storage apparatus which is arranged on the portable machine tool, in a diagrammatic illustration, and

[0023] FIG. 5 shows a plan view of the alternative machine tool system according to the invention, at least one housing element of a housing unit of the alternative machine tool according to the invention being removed, in diagrammatic illustration.

DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0024] FIGS. 1 to 3 show a machine tool system 10a having at least one portable machine tool 12a which comprises at least one tool receptacle 14a for arranging a machining tool (not shown in greater detail here), and at least one receiving interface 16a. In the exemplary embodiment which is shown in FIGS. 1 to 3, the portable machine tool 12a is configured as a grinding machine, in particular as a rotary sander. It is also conceivable, however, that the portable machine tool 12a has a different configuration which appears appropriate to a person skilled in the art, such as an orbital sander or the like. The portable machine tool 12a has at least one drive unit 30a which is provided to drive the tool receptacle 14a of the portable machine tool 12a. Furthermore, the portable machine tool 12a comprises at least one output unit 36a. The output unit 36a is configured as a wraparound output unit, in particular as a toothed belt output unit. It is also conceivable, however, that the output unit 36a is configured as a gearwheel output unit. The drive unit 30a and the output unit 36a are provided to drive the tool receptacle 14a in a manner which is already known to a person skilled in the art, in particular to drive it rotationally. The tool receptacle 14a can be driven by means of an interaction of the drive unit 30a and the output unit 36a in a manner which is already known to a person skilled in the art so as to rotate eccentrically about a movement axis 24a, in particular a rotational axis, of the tool receptacle 14a, it being possible, in particular, for a center of the tool receptacle 14a to be driven rotationally in an eccentric manner about the movement axis 24a of the tool receptacle 14a in addition to an overall rotation of the tool receptacle 14a about the movement axis 24a of the tool receptacle 14a. It is also conceivable, however, that the portable machine tool 12a is configured so as to be decoupled from the output unit 36a, and that the drive unit 30a is connected directly to the tool receptacle 14a.

[0025] The tool receptacle 14a is configured as an abrasive material receptacle, in particular as a grinding disk, on which the machining tool can be fixed by means of a fixing unit (not shown in greater detail here) of the portable machine tool 12a in a manner which is already known to a person skilled in the art. The fixing unit can be configured as a hook and loop closure unit, a clamping unit, a self-adhesive unit or the like. The machining tool is configured as a sanding sheet. It is also conceivable, however, that the machining tool has another configuration which appears appropriate to a person skilled in the art, such as a configuration as a polishing sheet, etc. In a state, in which it is arranged on the tool receptacle 14a, in particular in a state, in which it is fixed on the tool receptacle 14a, the machining tool bears against a tool receiving face 22a of the tool receptacle 14a. The tool receiving face 22a runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 14a. The tool receiving face 22a is arranged on a side of the tool receptacle 14a, which side faces away from a housing unit 28a of the portable machine tool 12a.

[0026] The housing unit 28a is provided to receive at least the drive unit 30a and the output unit 36a. The housing unit 28a has a shell design. It is also conceivable, however, that the housing unit 28a has a cup design or a combination of a shell design and a cup design. The housing unit 28a comprises at least two housing shell elements 38a, 40a which can be fixed on one another. A connecting plane, in which the housing shell elements 38a, 40a bear against one another in a state, in which they are fixed against one another, runs at least substantially perpendicularly with respect to the tool receiving face 22a. In addition, the connecting plane, in which the housing shell elements 38a, 40a bear against one another in a state, in which they are fixed on one another, runs at least substantially parallel to the movement axis 24a of the tool receptacle 14a. The movement axis 24a of the tool receptacle 14a preferably runs in the connecting plane, in which the housing shell elements 38a, 40a bear against one another in a state, in which they are fixed on one another.

[0027] Furthermore, the movement axis 24a of the tool receptacle 14a runs at least substantially parallel to a drive axis 42a of the drive unit 30a (FIGS. 1 to 3). It is also conceivable, however, that the movement axis 24a of the tool receptacle 14a runs at least substantially transversely with respect to the drive axis 42a of the drive unit 30a. The drive unit 30a is configured as an electric motor unit. The drive axis 42a of the drive unit 30a is formed by a rotational axis of an armature shaft of the drive unit 30a. In addition, the output unit 36a is provided to mount the tool receptacle 14a such that it can be moved eccentrically relative to the movement axis 24a of the tool receptacle 14a. It is conceivable that the output unit 36a is of switchable configuration, in order, for example, to influence and/or to change a rotational speed of the tool receptacle 14a.

[0028] Furthermore, the machine tool system 10a has at least one energy storage apparatus 18a which can be arranged on the receiving interface 16a of the portable machine tool 12a, in particular can be arranged removably on the receiving interface 16a of the portable machine tool 12a. The energy storage apparatus 18a is configured as an accumulator battery apparatus. The energy storage apparatus 18a comprises a multiplicity of rechargeable accumulator battery cells (not shown in greater detail here). The accumulator battery cells of the energy storage apparatus 18a are arranged in a housing of the energy storage apparatus 18a in a manner which is already known to a person skilled in the art, and are connected electrically to one another. The energy storage apparatus 18a is configured as an accumulator battery pack which can be arranged removably on the receiving interface 16a of the portable machine tool 12a. It is also conceivable, however, that the energy storage apparatus 18a has another embodiment which appears appropriate to a person skilled in the art.

[0029] At least in a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a is arranged at least for the most part within a boundary region 20a of the tool receptacle 14a. The boundary region 20a is a spatial region which is formed by way of an imaginary parallel displacement of the tool receiving face 22a of the tool receptacle 14a along a direction which runs at least substantially parallel to the movement axis 24a of the tool receptacle 14a, in particular as a result of sweeping over a region starting from the tool receptacle 14a as far as an outer edge of the housing unit 28a, which outer edge is arranged on a side of the housing unit 28a, which side faces away from the tool receptacle 14a. In the exemplary embodiment which is shown in FIGS. 1 to 3, the tool receiving face 22a of the tool receptacle 14a has a circular configuration. The tool receiving face 22a of the tool receptacle 14a is configured as a circular face. It is also conceivable, however, that, in an alternative embodiment of the machine tool system 10a, in particular of the portable machine tool 12a, the tool receiving face 22a of the tool receptacle 14a has a different configuration which appears appropriate to a person skilled in the art, such as a polygonal configuration, in particular a rectangular or a triangular configuration or the like. The boundary region 20a of the tool receptacle 14a is formed as a circular-cylindrical, spatial region, the circumferential face of which is formed, in particular, as a consequence of an imaginary parallel displacement of an annular outer contour of the tool receiving face 22a of the tool receptacle 14a along the direction which runs at least substantially parallel to the movement axis 24a of the tool receptacle 14a.

[0030] Furthermore, the tool receptacle 14a has an axis which runs through a centroid of the tool receiving face 22a of the tool receptacle 14a, runs at least substantially perpendicularly with respect to the tool receiving face 22a, and intersects the energy storage apparatus 18a (FIG. 2). The axis which runs through a centroid of the tool receiving face 22a of the tool receptacle 14a runs at least substantially parallel to the movement axis 24a of the tool receptacle 14a. The centroid is configured as a circle center of the tool receiving face 22a of the tool receptacle 14a, in particular in the case of a circular configuration of the tool receiving face 22a of the tool receptacle 14a. The axis which runs through a centroid of the tool receiving face 22a of the tool receptacle 14a intersects the energy storage apparatus 18a at least in a contact and/or connecting region 50a of the energy storage apparatus 18a. The contact and/or connecting region 50a is provided for a positively locking and/or non-positive connection and/or for an electric connection of the energy storage apparatus 18a to the receiving interface 16a.

[0031] At least in a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a is preferably arranged completely within the boundary region 20a of the tool receptacle 14a. In a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a has a maximum extent, as viewed along a direction which runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 14a, which maximum extent is smaller than a maximum extent of the tool receiving face 22a of the tool receptacle 14a, as viewed along the direction which runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 14a. At least in a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a does not extend beyond the tool receptacle 14a, in particular does not extend beyond the tool receiving face 22a, as viewed along the direction which runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 14a. The energy storage apparatus 18a is arranged at least for the most part, in particular completely, within the circumferential face of the boundary region 20a of the tool receptacle 14a, the circumferential face being formed, in particular, as a consequence of an imaginary parallel displacement of an annular outer contour of the tool receiving face 22a of the tool receptacle 14a along the direction which runs at least substantially parallel to the movement axis 24a of the tool receptacle 14a.

[0032] At least in a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a is arranged between a handle region 26a of the housing unit 28a of the portable machine tool 12a and the tool receptacle 14a, as viewed along the movement axis 24a of the tool receptacle 14a. The receiving interface 16a is arranged between the handle region 26a of the housing unit 28a of the portable machine tool 12a and the tool receptacle 14a, as viewed along the movement axis 24a of the tool receptacle 14a. The handle region 26a is arranged on the housing unit 28a on a side of the housing unit 28a, which side faces away from the tool receptacle 14a. The handle region 26a is provided as a rest face for a hand inner face of a hand of an operator of the portable machine tool 12a. A hand inner face of a hand of an operator can preferably be arranged on the handle region 26a in order to produce a pressing force during machining of a workpiece. The handle region 26a is formed by the housing shell elements 38a, 40a. The handle region 26a has a convex configuration. The handle region 26a is of spherical segment-shaped configuration. The handle region 26a is arranged at least for the most part within the boundary region 20a of the tool receptacle 14a.

[0033] In addition, the handle region 26a is configured in one piece with a shaft-shaped handle 44a of the housing unit 28a. An operating unit 46a of the portable machine tool 12a is arranged on the shaft-shaped handle 44a. The operating unit 46a is provided at least for activation or deactivation of a power supply and/or for influencing the rotational speed of the drive unit 30a. The operating unit 46a comprises at least one operating element 48a which is arranged on a side of the shaft-shaped handle 44a, which side faces the tool receptacle 14a. The shaft-shaped handle 44a extends beyond the boundary region 20a of the tool receptacle 14a, as viewed along the direction which runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 14a.

[0034] Furthermore, at least in a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a is covered at least partially on at least two sides by the housing unit 28a of the portable machine tool 12a. The receiving interface 16a of the portable machine tool 12a is covered at least partially, in particular completely, on at least two sides by the housing unit 28a of the portable machine tool 12a. At least in a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a. is covered at least partially on at least two sides by the housing unit 28a of the portable machine tool 12a, as viewed along the direction which runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 14a. The receiving interface 16a of the portable machine tool 12a is covered at least partially, in particular completely, on at least two sides by the housing unit 28a. of the portable machine tool 12a, as viewed along the direction which runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 1a.

[0035] The receiving interface 16a comprises at least one guide element 32a (FIGS. 2 and 3) which has a longitudinal axis 34a which runs at least substantially transversely, in particular at least substantially perpendicularly, with respect to the movement axis 24a of the tool receptacle 14a. The longitudinal axis 34a of the guide element 32a runs at least substantially parallel to the tool receiving face 22a of the tool receptacle 14a. The guide element 32a is configured as a push-in guide groove which interacts for receiving the contact and/or connecting region 50a of the energy storage apparatus 18a which is of corresponding configuration to the guide element 32a, for arranging and/or making electrical contact with the energy storage apparatus 18a in a manner which is already known to a person skilled in the art. Overall, the receiving interface 16a has at least two guide elements 32a, 52a (FIG. 3). It is also conceivable, however, that the receiving interface 16a has a number of guide elements 32a, 52a which differs from two. The guide elements 32a, 52a have an at least substantially analogous configuration. In particular, the guide elements 32a, 52a are arranged and/or configured in a mirror-symmetrical manner.

[0036] Furthermore, at least in a state, in which it is arranged on the receiving interface 16a, the energy storage apparatus 18a is arranged offset laterally with respect to the drive unit 30a of the portable machine tool 12a (FIG. 3). The receiving interface 16a is arranged offset laterally with respect to the drive unit 30a of the portable machine tool 12a. At least in a state of the energy storage apparatus 18a, in which it is arranged on the receiving interface 16a, the drive unit 30a is at a spacing from the energy storage apparatus 18a, as viewed along the direction which runs at least substantially perpendicularly with respect to the movement axis 24a of the tool receptacle 14a. The drive unit 30a of the portable machine tool 12a is arranged offset laterally with respect to the movement axis 24a of the tool receptacle 14a.

[0037] FIGS. 4 and 5 show a further exemplary embodiment of the invention. The following descriptions and the drawing are restricted substantially to the differences between the exemplary embodiments, it being possible fundamentally for reference also to be made to the drawing and/or the description of the other exemplary embodiment of FIGS. 1 to 3 with regard to components of identical designation, in particular in relation to components with identical reference signs. In order to distinguish the exemplary embodiments, the letter a is placed behind the reference signs of the exemplary embodiment in FIGS. 1 to 3. The letter a is replaced by the letter b in the exemplary embodiment of FIGS. 4 and 5.

[0038] FIGS. 4 and 5 show an alternative machine tool system 10b having at least one alternative portable machine tool 12b which comprises at least one tool receptacle 14b for arranging a machining tool (not shown in greater detail here), and at least one receiving interface 16b. Furthermore, the machine tool system 10b comprises at least one energy storage apparatus 18b which can be arranged on the receiving interface 16b of the portable machine tool 12b, in particular can be arranged removably on the receiving interface 16b of the portable machine tool 12b. The machine tool system 10b which is shown in FIGS. 4 and 5 has an at least substantially analogous configuration to the machine tool system 10a which is shown in FIGS. 1 to 3. In contrast to the machine tool system 10a which is shown in FIGS. 1 to 3, the machine tool system 10b which is shown in FIGS. 4 and 5 comprises the energy storage apparatus 18b which, at least in a state, in which it is arranged on the receiving interface 16b is arranged at least partially between a handle region 26b of a housing unit 28b of the portable machine tool 12b and a drive unit 30b of the portable machine tool 12b (FIG. 4), as viewed along a movement axis 24b of the tool receptacle 14b. In a state of the energy storage apparatus 18b, in which it is arranged on the receiving interface 16b, the drive unit 30b is arranged in the housing unit 28b on a side of the energy storage apparatus 18b, which side faces the tool receptacle 14b. A drive axis 42b of the drive unit 30b runs coaxially with respect to the movement axis 24b of the tool receptacle 14b. In a state of the energy storage apparatus 18b, in which it is arranged on the receiving interface 16b, the handle region 26b is arranged on the housing unit 28b on a side of the energy storage apparatus 18b, which side faces away from the tool receptacle 14b. With regard to further features and functions of the machine tool system 10b which is shown in FIGS. 4 and 5, reference may be made to the description of the machine tool system 10a which is shown in FIGS. 1 to 3.