JP2579453B2 - On-board dresser - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-machine dresser capable of constantly dressing without removing a grinding wheel set on a grinding machine.

[0002]

2. Description of the Related Art When a grinding wheel of a grinding machine is clogged or loses its shape, it is common to remove the grinding wheel and dress it with a dresser, but it takes time and trouble to attach and detach the grinding wheel. Therefore, there is a disadvantage that work efficiency is reduced. For this reason, recently, an on-machine dresser capable of constantly dressing without removing a grinding wheel has been developed. The present inventors have also disclosed in JP-A-6-3204.
As No. 22, we have already developed an on-board dresser with the following mechanism.

As shown in FIG. 3 (a partially cutaway front view), the above-mentioned on-machine dresser is made up of a dresser body by a base / guide 12 fixed to an upper surface of a grinding machine 1 on which a grinding wheel 11 is set. Is supported. The dresser body includes a dress head 3 and a dress head support base 2 that supports the dress head 3. The dress head support base 2 fits into a base / guide 12 and slides parallel to the rotation axis of the grinding wheel 11. Mounted freely. And dress head 3 has dress stone 31
Is attached to the tip of the spindle 32. Thus, in this on-machine dresser, the rotating grinding wheel 11
Stone 3 in dress head 3 located directly above
1 is arranged so as to always face the grinding surface of the grinding wheel 2.

In the case of the on-machine dresser, when performing a required operation on the grinding wheel, such as performing a grinding operation while dressing, a considerably bulky dress head is located immediately above the grinding wheel. However, it was found that there was a point to be improved that it hindered the work and sometimes made the work difficult.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problem that the dressing head obstructs the grinding operation and the like, and provides an on-machine dresser capable of easily performing a grinding operation while dressing. It was done in.

[0006]

An on-machine dresser of the present invention made to solve the above-mentioned problem is fixed on a grinding machine provided with a grinding wheel, and is provided above a rotation axis of the grinding wheel. A dress head supporting base having a rotatable rotating shaft whose axis is parallel to a dressing head, and a dress head having a spindle for detachably attaching a dress stone for dressing the grinding wheel. A head is provided on the rotating shaft, with a predetermined interval between the axis of the rotating shaft and the axis of the spindle, and attached in such a manner that the directions are parallel to each other. It is characterized in that it can be dressed from either the left or right direction of the grinding wheel by rotating about the axis.

[0007]

In the on-machine dresser of the present invention, the dress head having a spindle for detachably attaching a dress stone for dressing a grinding wheel is rotated about the axis of the rotation shaft, thereby obtaining Since the dressing stone attached to the spindle can face the grinding wheel from either the left or right direction, when performing the grinding operation from the left or right preferred direction, the dressing stone is placed on the opposite side. Can be rotated to perform dressing, so that the dress head does not become an obstacle as in the related art.

[0008]

Next, the present invention will be described in more detail with reference to the illustrated embodiments. In FIG. 1, which is an explanatory front sectional view of the on-machine dresser of the embodiment, the grinding machine is provided with a grinding wheel 11 on the side and penetrated above the rotation axis of the grinding wheel 11 with the axial direction parallel to the axis. The dress head support base 2 having the rotatable hollow rotary shaft 21 is fixed. On the other hand, the dress head 3 is provided with a spindle 32 that allows a dress stone 31 for dressing the grinding wheel 11 to be detachable at its tip, and the axis a of the spindle 32 and the axis It is attached to one end of the rotating shaft 21 with a predetermined distance from the core b and a parallel direction.

Therefore, in this embodiment, as shown in FIG. 2, the dress head 3 is moved from the state in which the spindle 32 is positioned upward to the left or right direction about the axis b of the rotating shaft 21 as a center. Can also be rotated. In this case, if the size of the dress stone is appropriately selected according to the size of the grinding wheel 11, the dress stone 31 attached to the spindle 32 can face the grinding wheel 11 from either the left or right direction. Thus, the dressing can be performed from a desired direction by fixing to a predetermined rotation position. In addition, dressstone 31
By rotating the wheel upward and positioning it directly above, a large space is formed around the grinding wheel 11, which is advantageous in that the handling of the grinding wheel becomes easier. In this embodiment, the rotation operation of the dress head 3 is manually performed, but it is easy to automate the rotation by appropriate means. To stop the rotation of the dress head 3 and fix it at that position, the handle 2
Appropriate means such as applying a brake to the rotating shaft 21 by means of 2 can be adopted.

Next, a structure for rotating or moving the dress stone 31 for dressing in this embodiment will be described. In FIG. 1, first, rotation of a motor 23 provided on the dress head support base 2 is transmitted to one end of a shaft 24 provided by being inserted into a space in the shaft of the rotating shaft 21 via gears. The other end is transmitted to the spindle 32 via the gear on the dress head side.
Thus, the dress stone 31 attached to the tip of the spindle 32 is configured to rotate.

The rotation of the step motor 33 provided on the dress head 3 is transmitted to a sleeve-like shaft 34 provided around the spindle 32 via a worm gear (not shown). While rotating the shaft 34, the shaft 34 can be moved integrally with the spindle 32 back and forth along a rotation axis along a spiral groove (not shown) provided on the outer periphery of the shaft.
By the operation described above, first, the dress head 3 is turned to rotate the dress stone 3 attached to the spindle 32.
1 is fixed to a predetermined rotation position by facing the grinding wheel 11 from either the left or right direction. Then, while rotating the dress stone 31 attached to the tip of the spindle 32 as described above, the shaft The dressing 31 can be brought into contact with the grinding wheel 11 by performing the dressing by moving the spindle 32 integrally with the dressing 34.

[0012]

As described above, the on-machine dresser of the present invention can rotate the dressing stone to the opposite side when performing the grinding operation from the preferred direction with respect to the grinding wheel. The required work and operation can be easily performed without the dress head being in the way as before, and if the dress stone is rotated upward and positioned directly above, a large space is created around the grinding wheel. As a result, there is an industrial effect with a great effect because of excellent effects such as easy handling of the grinding wheel.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing an embodiment.

FIG. 2 is a side sectional view showing an embodiment.

FIG. 3 is a partially cutaway front view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grinding machine 11 Grinding wheel 2 Dress head support base 21 Rotating axis 3 Dress head 31 Dress stone 32 Spindle

Claims (1)

(57) [Claims] 1. A rotatable turn fixed on a grinding machine (1) provided with a grinding wheel (11) and having its axis parallel to the axis of rotation of the grinding wheel (11). A dress head support base (2) having a moving shaft (21) and a dress stone (3) for dressing the grinding wheel (11).
1) comprises a dress head (3) having a spindle (32) for detachably mounting the dress head (3). The dress head (3) is attached to the rotation shaft (21), The dressing head (3) is rotated about the rotation axis (21) of the spindle (32), with a predetermined interval provided between the rotation axis and the spindle (32). An on-machine dresser characterized in that dressing can be performed from either the left or right direction of the grinding wheel (11).