JP3099029B2 - Combined grinding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite grinding machine capable of performing rough and finish grinding with different grinding wheels on the same grinding machine main body bed without removing a work from a work table.

[0002]

2. Description of the Related Art Conventionally, surface grinders include a grinding machine in which an end surface of a rotating grinding wheel is brought into contact with a work, and a grinding machine for grinding a work on a peripheral surface of the grinding wheel.
In general, in the former, a vertical axis grindstone head in which the grinding wheel axis is held vertically with respect to the horizontal worktable is provided on the column so as to be vertically movable, and in the latter, the grinding wheel axis is held parallel to the worktable, that is, horizontally. A horizontal wheel head is used. For example, when a thin plate such as a blade of a papermaking machine is wound in a coil shape and its coil end surface is ground, the coiled work 15 is fixed on a rotating circular table 17 as shown in FIG. The lower end surface of the grinding wheel 20 of the vertical grinding wheel head 19 is brought into contact with the work 15 and rotated to grind the end surface of the work. In the case of a horizontal grinding wheel head, the grinding wheel shaft 21 is held horizontally as shown in FIG.

[0003]

In the end face grinding of a coil-shaped work by winding a thin plate such as a blade of a papermaking machine, a large grinding allowance can be taken, so that a grinding machine generally using a vertical grinding wheel head as shown in FIG. However, in this method, the work is cut off at one end surface of the grinding wheel, so that the scratches 23 having a streak shape as shown in FIG. It is necessary to perform finish grinding with a horizontal axis grindstone head in order to eliminate such pit-like grinding marks, but performing rough grinding and finish grinding with two different grinding machines is inefficient, and After performing rough grinding with a vertical grinding wheel head type grinder, remove the work and transfer it to another horizontal grinding wheel head type grinding machine, the work wound up in a coil shape may be broken, and once the work is broken There is a problem that it is difficult to return to the original state, and that the uneven surface must be ground again.

According to the present invention, rough grinding using the end surface of a grinding wheel and finish grinding using the peripheral surface of the grinding wheel can be performed while the work is mounted on the table, whereby a work with a large allowance can be efficiently and finally finished on the grinding surface. Another object of the present invention is to provide a composite grinding machine capable of grinding without leaving a streak-like grinding mark or the like.

[0005]

According to the present invention, an X-axis table is supported on a main body bed so as to be movable in the left-right direction (X-axis direction).
And so as to sandwich the X-axis table, a column for vertically supporting a column and the horizontal axis the grindstone head for vertically supporting a vertical spindle grinding wheel head, facing their grinding wheel head elevating sliding surface to each other
The column supporting the horizontal axis grinding wheel head is movable in the X-axis direction, and the plane including the end surface of the horizontal axis grinding wheel mounted on the horizontal axis grinding wheel head is the X-axis direction. A rotating table is provided on the X-axis table,
The horizontal axis of the grinding wheel head is from the diameter direction of the rotary table.
Moves toward the vertical spindle head and contacts the vertical spindle head.
Near the rotating table and the table.
The upper surface of one work placed concentrically with the bull
A composite grinder capable of performing rough grinding and finish grinding with a head is provided.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a front view of a composite grinding machine according to an embodiment of the present invention. A column 2 for a vertical grinding wheel is fixed to one end of the main body bed 1, and a vertical grinding wheel head 3 is held on the inner surface of the column 2 so as to be vertically movable. Vertical grinding wheel head 3
At the lower end, a grinding wheel shaft 5 having a horizontal grinding wheel 4 for horizontal grinding is vertically supported on the upper surface of the bed 1. Wheel axis 5
Is driven to rotate by a drive motor 6 mounted on the upper part of the vertical spindle head 3. The vertical grinding wheel head 3 is the column 2
Is screwed with a vertical feed screw 7 rotatably supported on the inner surface of the column 2. The vertical movement is performed along the sliding surface of.

At the other end of the main body bed 1, a column 8 for a horizontal grinding wheel is mounted so as to be movable in the left-right direction as viewed from the front of the grinding machine. Are held horizontally and movably up and down. The horizontal axis grinding wheel head 9 is supported by a grinding wheel shaft 10 extending perpendicularly to the opposed vertical grinding wheel head 3, and a grinding wheel 11 for finish grinding is attached to the tip of the grinding wheel shaft 10. The grinding wheel 11 is driven to rotate by a drive motor 12 provided at the rear of the wheel. In addition, the vertical movement mechanism of the horizontal axis grinding stone head 9 is configured such that the horizontal axis grinding stone head 9 is screwed into a feed screw extending vertically along the horizontal axis grinding stone column 8,
The feed screw is driven to rotate by a motor 16 held at the upper part of the column 8, so that the horizontal axis of the grinding wheel head 9
Slides up and down along the inner surface of the column 8 for the horizontal grinding wheel.

An X-axis table 13 is provided on the upper surface of the main body bed 1 and moves in the left-right direction of the bed 1, and a circular rotary table 14 is mounted on the table 13.
The work 1 such as a thin plate coil is placed on the turntable 14.
5 is fixed, and rotates with the work 15 around an axis perpendicular to the X-axis table 13, that is, around the Z-axis by a built-in motor.

When grinding the end face of the coiled work 15, first, the work 15 is fixed on the rotary table 14, and X
The shaft table 13 is moved to the side of the vertical grinding wheel column 2 to position the work 15 below the vertical grinding wheel head 3, the head 3 is lowered, the rotation of the rough grinding wheel 4 by the drive motor 6 and the rotation table 14. Is rotated to roughly grind the end surface of the work 15 at the end surface of the grinding wheel 4 with a large allowance.
Next, the X-axis table 13 is moved to the side of the horizontal axis grinding wheel column 8 and the horizontal axis of the grinding wheel column 8 is also moved to the X-axis table 13 side so that the work is placed below the grinding wheel 11 for finish grinding of the horizontal axis wheel head 9. Then, the horizontal axis grindstone head 9 is lowered, and the end surface of the work 15 is ground on the peripheral surface of the grinding wheel 11 while reciprocating the grindstone shaft 10 of the head 9 in the axial direction. By this finish grinding, the ash-like grinding marks remaining during the rough grinding are removed. After finishing grinding, the work 15 is removed from the rotary table 14.

In the above-described embodiment, the grinding wheel drive motor 6 of the vertical grinding wheel head 3 has a high horsepower for rough grinding. In addition, as described above, during the finish grinding, the moving stroke of the X-axis table 13 is shortened to move the column 8 for the horizontal axis grinding wheel in the X-axis direction . The work is not limited to a coil-shaped work, but can be applied to any work such as a round blade having a large grinding allowance and requiring high grinding surface accuracy.

[0011]

As described above, according to the present invention, a vertical grinding wheel head and a horizontal grinding wheel head are provided on a main body bed of a grinding machine, and a workpiece is ground by moving the table on the bed. From the position to the grinding position of the horizontal axis grinding wheel head, so that rough grinding to finish grinding can be performed with the same grinding machine and one setup without having to transfer the work to a different grinding machine as in the past. As a result, the efficiency of the grinding operation and the accuracy of the grinding surface are improved. The present invention is particularly useful when applied to a case where the workpiece cannot be removed during the grinding process.

[Brief description of the drawings]

FIG. 1 is a front view of a compound grinding machine according to an embodiment of the present invention.

FIG. 2 is a top view of the embodiment shown in FIG.

FIG. 3 is a partial schematic view of a conventional vertical axis type grinding machine.

FIG. 4 is a partial schematic view of a conventional horizontal axis type grinding machine.

FIG. 5 is a plan view showing a ground surface of a work on which a streak-like scratch remains.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body bed 2 Column for vertical axis grinding wheel 3 Vertical axis grinding wheel head 4 Wheel for rough grinding 5, 10 Wheel axis 6 Drive motor 8 Column for horizontal axis grinding wheel 9 Horizontal axis grinding wheel 11 Finishing grinding wheel 12 Drive motor 13 X axis table 14 Rotary table 15 Work

Continuation of the front page (56) References JP-A-61-164773 (JP, A) JP-A-62-34761 (JP, A) JP-A-60-232859 (JP, A) JP-B-46-17674 (JP, A) , B1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B24B 7/16 B24B 7/02

Claims (1)

(57) [Claims] An X-axis table is supported on a main body bed so as to be movable in the left-right direction (X-axis direction). The column that supports the head up and down and the column that supports the horizontal axis whetstone head are moved up and down by the whetstone head.
Installation as sliding surfaces for later will face each other, and the transverse axis column for supporting the grinding wheel head is movable in the X-axis direction and the horizontal axis grinding wheel head mounted transverse axis abrasive <br The plane including the end surface of the wheel is perpendicular to the moving direction of the X-axis table, and the X-axis table is provided with a rotary table , and the horizontal-axis grinding wheel head is mounted on the rotary table.
Moving from the diameter direction of the
The vertical grinding wheel head is accessible and the rotating
Table and concentrically with the table
The top surface of the work is roughly ground and finished by both grinding wheel heads
A compound grinding machine characterized by being ground.