METHOD FOR WINDING A PLURALITY OF COIL BODIES AND SEGMENTED SPINDLE

Abstract

A method for winding a plurality of coil bodies for the production of electric motors using a segmented spindle. According to the method, a number of coil bodies are coupled to at least one intermediate part and two end parts to form a segmented spindle, and the segmented spindle is arranged in/on a winding machine. In this way, the coil bodies are wound in a synchronized manner. As a result, only a rotatable spindle is required for the winding of a number of coil bodies.

Claims

1. A method for winding a multiplicity of coil bodies for the production of electric motors, comprising the following steps: providing a segmented spindle; providing a first end piece, the first end piece being part of the segmented spindle; providing at least one intermediate piece, the at least one intermediate piece being part of the segmented spindle; providing a second piece, the second piece being part of the segmented spindle; providing a plurality of coil bodies; and providing a winding machine; assembling the segmented spindle by connecting one of the plurality of coil bodies to the first end piece and the intermediate piece, and connecting another of the coil bodies to the intermediate piece and the second piece; mounting the segmented spindle to the winding machine; winding the coil bodies synchronously.

2. The method of claim 1, further comprising the steps of: providing a plurality of stub shafts, at least one of the plurality of stub shafts formed as part of the first end piece, and another of the plurality of stub shafts formed as part of the second end piece; providing a spindle drive, the spindle drive being part of the winding machine; mounting the segmented spindle to the winding machine by connecting the shaft stubs to the spindle drive.

3. The method of claim 1, further comprising the steps of: providing an integrated bearing point formed as part of the at least one intermediate piece; supporting the segmented spindle using the integrated bearing point.

4. The method of claim 1, further comprising the steps of: providing a plurality of coils; and providing a wire guide, the wire guide being part of the winding machine; rotating the segmented spindle relative to the wire guide such that each one of the plurality of coils is wound onto a corresponding one of the coil bodies.

5. The method of claim 1, further comprising the steps of: providing a plurality of undercuts; providing a plurality of undercuts, at least one of the plurality of undercuts formed as part of the first end piece, another of the plurality of undercuts formed as part of the second end piece, and two of the plurality of undercuts formed as part of the at least one intermediate piece; connecting one of the plurality of coil bodies in an upward and downward manner to the first end piece and the intermediate piece using the undercut formed as part of the first end piece and one of the undercuts formed as part of the intermediate piece; connecting another of the coil bodies in an upward and downward manner to the intermediate piece and the second piece using the undercut formed as part of the second end piece and the other of the undercuts formed as part of the intermediate piece; removing the plurality of coil bodies from the segmented spindle in a wound state.

6. A segmented spindle, comprising: a first end piece; a second end piece; at least one intermediate piece; a plurality of coil bodies; and a plurality of undercuts, at least one of the plurality of undercuts formed as part of the first end piece, another of the plurality of undercuts formed as part of the second end piece, and at least two of the plurality of undercuts formed as part of the at least one intermediate piece; wherein one of the plurality of coil bodies is connected to the first end piece and the at least one intermediate piece in an upward and downward manner using the undercut formed as part of the first end piece and one of the undercuts formed as part of the intermediate piece, and another of the coil bodies is connected to the second end piece and the intermediate piece in an upward and downward manner using the undercut formed as part of the second end piece and the other of the undercuts formed as part of the intermediate piece, and the plurality of coil bodies are removed from the segmented spindle in a wound state.

7. The segmented spindle of claim 6, further comprising: a plurality of stub shafts, at least one of the plurality of stub shafts formed as part of the first end piece, and another of the plurality of stub shafts formed as part of the second end piece; and a winding machine having a spindle drive; wherein the segmented spindle is connected to the winding machine by connected the plurality of stub shafts to the spindle drive.

8. The segmented spindle of claim 6, further comprising an integrated bearing point formed as part of the at least one intermediate piece, wherein the segmented spindle is supported using the integrated bearing point.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein:

[0026] FIG. 1 is a plan view of an exemplary embodiment of a segmented spindle;

[0027] FIG. 2 is a front view of the segmented spindle of FIG. 1;

[0028] FIG. 3 is a plan view of an exemplary embodiment of a segmented spindle having a total of five coil bodies; and

[0029] FIG. 4 is a plan view of a further exemplary embodiment of a segmented spindle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

[0031] The segmented spindle that is illustrated in the view from above in FIG. 1 and in the view from the front in FIG. 2 is assembled from a first end piece 2 (illustrated on the left in the figure), a coil body 1, an intermediate piece 4, a coil body 1, and a second end piece 6 (illustrated on the right in the figure). Both end pieces are each provided with one shaft stub 3, so as to establish a connection to a winding-machine drive.

[0032] The intermediate piece 4 has a region 5 that is narrower and serves as a bearing point, serving for supporting the spindle in the winding procedure. The coil bodies 1 are configured in a conventional way, each having one lateral flange 7 which is disposed in a clearance 8 in the end piece 2 and in the intermediate piece 4, the clearance 8 having undercuts. Moreover, the coil body 1 in the front view has an approximately rectangular shape.

[0033] In order for a synchronous winding procedure of a plurality of coil bodies 1 to be carried out, the latter are coupled to the end pieces 2 and 6 and to the intermediate piece 4. This is performed in that the coil bodies 1 are push-fitted from above into the respective clearances 8 in the end pieces and the intermediate piece 4. Once the segmented spindle has been completed in this way, the latter is inserted into a winding machine and the respective shaft stubs 3 are connected to the drive of the winding machine. The spindle is then rotated so as to wind the two coil bodies 1 in a synchronous manner. After the winding procedure has been terminated the wound coil bodies are removed from the segmented spindle again.

[0034] FIG. 2 shows the segmented spindle of FIG. 1 in the front view.

[0035] A view from above of a segmented spindle is shown in FIG. 3, where the segmented spindle has a construction that corresponds to that of FIG. 1, wherein however five coil bodies 1 are provided here for winding. Here too, the coil bodies 1 are inserted into undercut clearances 8 of the end pieces 2 and intermediate pieces 4, so as to carry out a synchronous winding procedure.

[0036] The embodiment of a segmented spindle shown in FIG. 4 differs from that of FIGS. 1 to 3. It is seen in the illustrated view from above that coil bodies 1 of a different configuration are used herein, the coil bodies 1 having bent end flanges 7 which are disposed in adapted clearances 8 of the end pieces and intermediate pieces. The intermediate pieces illustrated here also have regions 5 that are narrower and serve as bearing points for supporting the rotating segmented spindle.

[0037] The description of the invention is merely exemplary in nature and, thus, variations that do not depart from the gist of the invention are intended to be within the scope of the invention. Such variations are not to be regarded as a departure from the spirit and scope of the invention.