Grooving machine

Details Grooving machine Grooving machine

1992-12-14

1994-03-22

Howell, Daniel W.

Tool changing

Including machine tool or component

Reciprocating tool machine tool

409248, 409249, 409259, 409287, 483 29, B23D 4302

Patent

active

052959376

DESCRIPTION:

BRIEF SUMMARY
DESCRIPTION

1. Technical Field
The present invention relates to a grooving machine for forming a groove having a required sectional shape on the surface of a plate work, and particularly, to a grooving machine for forming grooves having different sectional shapes or beveled edges on a work.
2. Background Art
Prior arts disclosing a grooving machine are, for example, U.K. Patent Publication No. 2206513, U.S. Pat. No. 4,649,780, French Patent Publication No. 2005638, and Japanese Patent Publication No. 3-4362.
These conventional grooving machines usually employ a frame, an X-axis slider supported by the frame and horizontally movable along an axis X, a Z-axis slider disposed on the X-axis slider and vertically movable, and a cutting tool fitted to a lower part of the Z-axis slider. The cutting tool forms, for example, a V-shaped groove on the surface of a work. If it is required to form a U-shaped groove on the work, the cutting tool on the Z-axis slider must be replaced with another one. This replacement of the cutting tool obstructs improvement of cutting efficiency. When the X-axis slider is moved from the right to the left (or from the left to the right) to groove the surface of the work, cutting liquid is supplied to a cutting zone. When the X-axis slider is returned to the original position, the cutting tool is lifted from the surface of the work. At this time, excessive cutting liquid may drop from the cutting tool onto the surface of the work, to cause a problem that the dropped liquid must be cleaned later.


DISCLOSURE OF INVENTION

To solve this problem, the present invention provides a grooving machine for forming a groove on the surface of a work, comprising a work table on which the work is fixed, a frame, an X-axis slider disposed above the work table and horizontally movably supported by the frame, a Z-axis slider vertically movably supported by the X-axis slider, a tool holder base supported by the Z-axis slider, and a plurality of cutting tools fitted to the tool holder base, for forming different grooves on the surface of the work, the cutting tools being indexed to a cutting position to cut the work.
The tool holder base of the grooving machine according to the present invention preferably has a cutting liquid supply portion for supplying cutting liquid to a cutting zone where one of the cutting tools cuts the work, and a cutting liquid suction portion for sucking excessive cutting liquid.
With the above arrangement, the Z-axis slider is lowered so that one of the cutting tools cuts into the surface of the work, and then the X-axis slider is moved from the right to the left, for example, so that the cutting tool grooves the surface of the work. Before starting these operations, a required one of the cutting tools, which provides a groove of required shape such as a V-shaped groove and a U-shaped groove, is indexed to the cutting position.
While the surface of the work is being grooved, the cutting liquid supply portion of the tool holder base supplies cutting liquid to the cutting zone, to prevent the heating of the cutting tool. When the X-axis slider is returned to the original position, the cutting liquid suction portion of the tool holder base sucks excessive cutting liquid so that the cutting liquid does not drop onto the work during the returning of the X-axis slider to the original position.


BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a partly omitted front view showing a grooving machine according to a first embodiment of the present invention.
FIG. 2 is a sectional side view showing the grooving machine of FIG. 1.
FIG. 3 is an enlarged section taken along a line III--III of FIG. 1.
FIG. 4 is a view seen from the left side of FIG. 3, showing an essential part of the grooving machine.
FIG. 5 is an enlarged front view showing a part of FIG. 4.
FIG. 6 is an enlarged section taken along a line VI--VI of FIG. 5.
FIG. 7 is an explanatory view showing an essential part of a second embodiment of the present invention.
FIG. 8 is an explanatory view showing an essential part of a third embo

REFERENCES:
patent: 4649780 (1987-03-01), Takeuchi et al.
European Patent Office Search Report.

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