JPS5997837A - Vertical grinder - Google Patents

Abstract

PURPOSE:To automatically grind and finish a complicatedly curved surface in a short time by interchangeably providing wheel heads which can make both linear motion in the directions of X, Y, and Z, and rotary motion in the direction of A, B, and C. CONSTITUTION:A workpiece mounted on a swiveling table 14 can make linear motion in the X, Y directions by means of X, Y tables 12, 13, and rotary motion in the direction of C. A column 15 can be swung in the direction of A with respect to the table, and the wheel head 18 on the column can make linear motion in the Z direction and rotary motion in the B direction. Several wheel heads are stored on a magazine 25 and a wheel head for each purpose is interchangedly used by means of an interchanging device 24. As a wheel head is exchanged, a rotary speed in accordance with the grinding wheel can be automatically obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vertical grinding machine that automatically grinds surfaces including curved surfaces.

Conventional processing methods for molds, turbine blades, etc.
After cutting with a metal processing machine such as a machining center, it was done manually with a file or hand grinder. For example, processing the inside of a mold for a washing machine required approximately one week of manual finishing after cutting using a machining center, resulting in low productivity.

The present invention was made from this point of view, and its purpose is to shorten or eliminate manual labor time by automatically changing grindstones for final finishing of complex workpieces such as molds and turbine blades. Our purpose is to provide vertical grinding machines.

The present invention will be explained below with reference to figures showing one embodiment. The saddle 12 on the bed All is movable in the Y direction, and the table 13 placed on the saddle 12 is movable in the X direction. A workpiece (not shown) can be mounted and rotated to any position in the C direction. Also the bed All
A pair of columns 15 stand at one end of the column 15.
The slide pace 16 in between is moved in two directions, and the slide pace 16 is provided with a grinding wheel 18 that can be freely attached and detached via a shaft 17 in the B direction. Note 1
9 is an electric motor (a) that provides rotational force to the grinding wheel.Bed A
In the direction perpendicular to ll, the other bed B2] is straightened and the bed 8
2] A table ρ is placed on top so as to be slidable in the X direction,
The table n is equipped with a chamber shaft, and the chamber shaft has two different grinding wheel head exchange arms.
This grindstone VIJ 42 is inserted so as to be able to slide freely in the direction, and this grindstone VIJ 42 is inserted into the quill 17 by carrying the grindstone head selected from the (mouth) shaped magazine that houses the ah grindstone head and attaching it to the quill 17. The used stone head is returned to the magazine δ. In addition, the column 15 is a swivel installed between it and the bed 11! ! +1126 makes the swing town a in the A direction.

Next, the dazzling work of the present invention will be explained. First, turn the workpiece and place it on the 1st table 14, then set the position in the X2 and Y directions and the angle in the C direction from the turning table 14, the saddle 12 and the table 13, and then move the tile 17 to the 8th
The angle in the direction, the position in the Z direction, and the inclination angle in the entry direction of the column 15 are determined. Note that the position control of the XY and Z axes and the angle indexing of AB and C are both performed by an NC mechanism (not shown).

After adding up the positions of each part in this way, rough grinding is performed using the grinding wheel head a+, and after rough grinding is performed using other types of grinding depending on the case, finish grinding is performed to complete the grinding of the workpiece.

As mentioned above, the vertical grinding machine of the present invention is placed on bed A, on which the workpiece is placed, and at the same time, there is a rotating table that can slide in two directions at right angles, X and Y, and rotate in direction C. and a grinding wheel head that is fixed to a slide pace that moves vertically in accordance with a column whose inclination direction A is freely adjustable with respect to the bed A, and which is attached to the wheel so that it can freely rotate in a direction B. Bed B placed perpendicular to Bed A
A grinding wheel head exchange arm that can be turned vertically and vertically on the top, a magazine that stores a plurality of grinding wheel heads that are supplied to and removed from the quill by the same whetstone exchange arm, and controls movement in the XYZAB and C directions. It consists of an NC mechanism.

For this reason, in the vertical grinding machine of the present invention, workpieces with rough curved surfaces such as molds and turbine blades are machined from a grinding wheel head equipped with a divinely shaped grinding wheel corresponding to each curved surface. Since a suitable grinding wheel head can be appropriately selected using the exchangeable arm, the final finishing time is shortened and productivity is increased.

Furthermore, positioning in the XYZAB and C directions is performed by the NC@ structure, which makes operations easier. In addition, since the grinding wheel head is equipped with an electric motor instead of replacing the grinding wheel itself, the rotation speed suitable for the grinding wheel is automatically adjusted. This simplifies the control scheme.

[Brief explanation of the drawing]

The figure is a perspective view of one embodiment of the present invention. 11...Bed A114...Swivel table, 15.
...Column, 16...Slide pace, 17...Tile, 18...Whetstone head, 21...Ped 8% prisoner...
- Grinding wheel head exchange arm, δ...magazine. Applicant: Toshiba Machine Co., Ltd.

Claims (1)

[Claims] On the bed A, a rotary table is provided, on which the workpiece is placed on the upper surface thereof, and a rotating table capable of sliding in two directions of the X and Y corners and rotating in the C direction; Against A
A grinding wheel head fixed to a sliding pace that moves vertically along a column VC whose inclination direction is freely adjustable and attached to a tile rotatable in the B direction, and a bed placed in a direction perpendicular to the bed. A grinding wheel head exchange arm that can be rotated in the vertical direction and in the B soil, a magazine that stores a plurality of grinding wheel heads that are supplied to and removed from the multi-E by the grinding wheel head exchange arm, and a magazine that can move in the XYZAB and C directions. Controlling NC
A vertical grinding machine consisting of a mechanism.