JP4736263B2 - Chip removal device for workpiece - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chip removal device for a workpiece in which slits are provided in a constant twist direction on an end surface of the workpiece.
[0002]
[Prior art]
There is a slit on the end face of the workpiece, and it is necessary to apply a brush along the slit to remove burrs generated after processing a product whose twist direction is right or left depending on the model, and chips entering the slit. Therefore, in this type of conventional chip removal device for workpieces, a left / right discriminating unit for detecting the twist direction of the slit before removal and a dedicated brushing device depending on the left / right twist direction are required. For this reason, this conventional chip removing device has a problem that the installation space is increased and the cost is high.
[0003]
[Problems to be solved by the invention]
In view of the above problems, the present invention focuses on the fact that the slit has directionality even in products having different twist directions of the slits on the workpiece end surface, and the purpose thereof is not necessary to determine the left and right twist directions of the slit. Another object is to provide a workpiece chip removing device that can remove burrs generated during the formation of slits and chips that have entered the slits with a simple structure.
[0004]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems, the present invention provides a workpiece chip removal device according to each of the claims.
The workpiece chip removing device according to claim 1, wherein the axis of the shaft for rotating the brush and the axis of the workpiece are orthogonal to each other, and a plurality of slits are formed in a constant twist direction. A pair of brushes for removing chips by abutting them are provided coaxially on the left and right sides of the workpiece axis, and the pair of brushes are rotated in the same direction to abut the rotating workpiece end surface. By rotating one of the pair of brushes in the direction along the slit in the right twist direction, the chips in the slit in the right twist direction are removed, and the other brush is moved along the slit in the left twist direction. was by rotating in the direction, by removing the chips in the left twisting direction of the slit, regardless twisting direction of the slit, it is possible to scrape out the chips entering into the slit when the slit forming It is obtained by way. Therefore, it is not necessary to provide a discrimination unit that detects the twist direction of the slit. In addition, it is not necessary to provide dedicated brushing devices on the left and right according to the twist direction. Furthermore, not only chips but also burrs generated when the slit is formed can be removed.
[0005]
The chip removing device according to claim 2 is a device in which a pair of brushes are arranged offset from the axial center of the workpiece, whereby the brush can scrape off chips along the slits more efficiently. Moreover, also in the removal of a burr | flash, a brush can hit a right angle to a slit and can remove a burr | flash effectively.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a workpiece chip removing device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a (a) front view and (b) side view of a workpiece chip removing device according to the present invention, and FIG. 2 shows a workpiece that is an object of chip removal work, (a) Indicates a workpiece in which the slit is in the left-twist direction, and (b) indicates a workpiece in which the slit is in the right-twist direction. FIG. 3 is a diagram for explaining the chip removal operation of the workpiece chip removal apparatus of the present invention.
[0007]
In the workpiece chip removal device of the present invention, a pair of brushes 6 a and 6 b are attached to a rotating shaft 4 at intervals. As shown in FIG. 2, the workpiece 1 has a large number of slits 2 twisted in a fixed direction on its end face 1 a, and the twist direction of the slit 2 is the left twist of (a). , (B) may be a right twist. As the target product of the workpiece 1, for example, an armature that is one of the components of the starter is conceivable, and a surface (commutator surface) that conducts electricity to the armature corresponds to the workpiece end surface. The commutator surface is assembled while keeping the coils at regular intervals, and a slit is formed between the coils. The coils are twisted left and right according to the type of armature (for left rotation and right rotation), and the slit is formed by left-handed twist or right-handed twist.
[0008]
In the chip removal operation, the workpiece 1 is supported on both ends of the workpiece 1 so as to be freely rotatable. The work 1 is rotated by the outer periphery of the work 1 coming into contact with, for example, the drive roller 5. As a means for rotating the workpiece 1, other drive means can be adopted instead of the drive roller 5.
The pair of brushes 6a and 6b are arranged with a space left and right with respect to the surface passing through the axis 1A of the workpiece 1 and come into contact with the end surface 1a of the workpiece 1 during chip removal work. ing. The brushes 6a and 6b rotate in the same direction together.
Preferably, the pair of brushes 6a and 6b are offset from the axis 1A of the workpiece 1 by a predetermined distance. That is, the axis 4A of the shaft 4 that rotates the brushes 6a and 6b and the axis 1A of the workpiece 1 orthogonal to the axis 4A are in an offset relationship. The brushes 6a and 6b are configured to be movable by a mechanism (not shown) between a position where the brush 6a and 6b are in contact with the end surface 1a of the work 1 and a retracted position where the brush 6a and 6b are not in contact.
[0009]
Next, the operation of the workpiece chip removal device of the present invention will be described with reference to FIGS. 1 and 3.
The workpiece 1 supported by the support 3 is rotated by the drive roller 5. Next, the shaft 4 rotates, and a pair of brushes 6a and 6b fixed thereto rotate. By pressing against the end surface 1a of the workpiece 1 while rotating the brushes 6a and 6b, chips entering the slit 2 of the workpiece 1 can be scraped out, and at the same time, burrs generated when the slit is formed can be removed. . That is, in order to remove chips in the slit 2, it is necessary to rotate the brushes 6a and 6b along the slit 2 and scrape them out, and it is necessary to apply the brushes 6a and 6b to the slit 2 at right angles to the burr. Therefore, as shown in FIG. 3, in the case of the slit 2 in the right twist direction, the brushes 6 a and 6 b are provided on the left and right with respect to the center of the work 1 and pressed against the end surface 1 a of the work 1, and the brush is rotated in the same direction. Then, chips can be removed with the right brush 6a, and deburring can be performed with the left brush 6b. In the case of a slit in the left-handed twist direction, the reverse operation is performed.
[0010]
In this way, it is possible to remove chips regardless of the twist direction of the slit by offsetting the brush from the axis of the workpiece and attaching two brushes to the shaft and rotating in the same direction. At the same time, burrs generated in the slits can be removed.
Chips are generated when cutting and removing the end face to ensure the dimensional accuracy, surface roughness, and flatness of the end face of the workpiece, and this enters the slit, and the burr forms a slit. In the edge.
[Brief description of the drawings]
1A is a front view and FIG. 1B is a side view of a workpiece chip removing device according to an embodiment of the present invention;
FIGS. 2A and 2B show a workpiece that is an object of chip removal work, where FIG. 2A illustrates a workpiece having a slit in a left-handed direction, and FIG. 2B illustrates a workpiece having a slit in a right-handed direction. .
FIG. 3 is a diagram for explaining the operation of the chip removal work of the work chip removal apparatus of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Work 1a ... End surface 1A ... Work shaft center 2 ... Slit 3 ... Support stand 4 ... Shaft 4A ... Shaft center 5 ... Drive roller 6a, 6b ... Brush

Claims (2)

In a workpiece chip removing device for rotating a workpiece in which a large number of slits are provided in a constant twist direction on the workpiece end surface, contacting a brush with the rotating workpiece end surface, and removing chips entering the slit ,
The axis of the shaft for rotating the brush and the axis of the workpiece are orthogonal to each other, and the brushes are provided coaxially on the left and right sides of the axis of the workpiece, and the pair of brushes are arranged in the same direction. is rotated, and is brought into contact with the workpiece end face to be rotated,
While the brush of the pair of brushes, by rotating in the direction along the right-handed direction of the slit, to remove chips of the right in the torsional direction of the slit and the other of said brush, a left twist direction By removing the chips in the slit in the left twist direction by rotating in the direction along the slit, it is possible to scrape the chips that have entered the slit at the time of slit formation regardless of the twist direction of the slit. An apparatus for removing chips from a workpiece.   The workpiece chip removal device according to claim 1, wherein the pair of brushes are arranged offset from an axis of the workpiece.

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