JPH052285Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cleaning device for an adjusting wheel in a centerless grinding machine.

(Prior art) A centerless grinding machine usually has a grinding wheel and an adjusting wheel mounted on a base frame, and supports the grinding wheel and the adjusting wheel at intervals on the grinding wheel and adjusting wheels, respectively, so that the opposing circumferential surfaces of both wheels are A workpiece is fed and supported on a support blade provided between the two, and the surface of the workpiece is ground by the cooperative action of a grinding wheel and an adjusting wheel.

As is well known, the adjustment wheel in a centerless grinding machine plays an important role in improving the grinding accuracy of a workpiece. Furthermore, the sludge firmly adhered to the outer circumferential surface of the adjustment wheel could not be completely removed only by cleaning with the cleaning nozzle. For this purpose, a device is known in which a fixed brush is attached to the front part of the adjustment wheel and the bristles of the brush are pressed against the outer peripheral surface of the adjustment wheel to remove the sludge. However, in this case, the bristles of the brush tend to deform and do not actively remove the adhered sludge, resulting in a lack of removal ability. Therefore, it was not possible to satisfy the desired processing system.

(Problem that the invention aims to solve) In recent years, the types and materials of workpieces to be ground with centerless grinders have become diverse, and it seems that the limits of the performance of the grinder may be reached for certain types of workpieces. In many cases, high finishing accuracy is required, and it is difficult to completely remove the sludge adhering to the adjusting wheel using the conventional fixed brush method described above, and some of the sludge adhering to the adjustment wheel may impede the high-precision finishing of the workpiece. are doing. Particularly relatively light workpieces, such as workpieces made of non-metallic materials, for example Teflon, glass or ceramics, workpieces with these non-metallic materials on their surfaces, or workpieces made of light metal materials such as aluminum metal. When higher grinding accuracy is required for a workpiece made of a different material, the conventional brush means described above cannot keep the surface of the adjusting wheel clean for a long time, and the machining accuracy deteriorates over time. This makes it difficult to ensure accuracy.

The present invention provides a cleaning device for the adjusting wheel in a centerless grinding machine that can effectively clean the adjusting wheel and ensure stable finishing accuracy even when finishing the relatively lightweight workpiece described above. be.

(Means for Solving the Problems) The cleaning device of the present invention is provided with a roll brush that is in contact with the outer periphery of the adjustment wheel and can rotate actively in the same direction as the adjustment wheel, and furthermore, the roll brush and the adjustment wheel are connected to each other. It is characterized by being provided with a cleaning nozzle that sprays coolant liquid toward the contact area.

(Function) During grinding of a workpiece, sludge adhering to the outer periphery of the adjusting wheel is effectively washed and removed by the cooperative action of the roll brush that rotates in contact with the adjusting wheel and the coolant sprayed from the cleaning nozzle. During grinding, the outer periphery of the adjustment wheel is constantly cleaned to maintain high grinding accuracy.

(Example) Below, the drawings showing the embodiment of the present invention will be explained. Figure 1 shows a side view of the main part of the invention, and Figure 2 shows a front view of the roll brush part. 1 is a grinding wheel, 2 is an adjustment wheel disposed opposite to the grinding wheel 1, 3 is a support blade, and 4 is a grinding wheel.
indicates the workpiece.

This embodiment has a grinding wheel 1 and an adjusting wheel 2 as shown in the figure.
In the centerless grinding machine, a roll brush 5 is mounted on the upper peripheral surface of the adjusting wheel 2 on the grinding wheel 1 side in parallel with the rotational axis of the adjusting wheel 2. The roll brush 5 is rotatably supported by bearings 7 and 8 on both sides of the shaft 6, and a motor 9 is provided on the bearing 7 side to drive, for example, a gear 1.
0 and 11, the roll brush 5 can be actively rotated by the motor 9, and a cleaning nozzle 12 for spraying coolant is provided above the roll brush 5. While the roll brush 5 is brought into contact with the adjustment wheel 2 and rotated in the same direction as the adjustment wheel 2, coolant liquid is injected from the cleaning nozzle 12, and by the cooperative action of the roll brush 5 and the coolant liquid. The adjustment wheel 2 is constantly washed. The roll brush is made of a highly durable fiber material, and the rotational peripheral speed of the roll brush 5 is set to be approximately the same as the rotational peripheral speed of the adjustment wheel during grinding. Coolant liquid is injected from the cleaning nozzle toward the contact area with the adjustment wheel 2, and the sludge that is firmly attached to the outer peripheral surface of the adjustment wheel 2 can be easily removed, and the stripped sludge is mixed with the coolant liquid and the adjustment wheel 2. is carried in the direction of rotation of the adjusting wheel and removed.

Bracket 1 fixed to the top of adjustment chassis 13
Supports 20 and 21 are attached to bolts 18 and 19 at 6 and 16.
The bearings 8 and 7 are attached to the supports 20 and 21 with bolts 17, respectively, and the shaft 6
is supported. The supports 20 and 21 are provided with long holes 14 and 15 for attachment in the vertical direction, and the vertical position of the roll brush 5 can be adjusted in accordance with the amount of wear on the adjustment wheel. Although the motor 9 that rotationally drives the roll brush 5 is not shown,
It is attached to a base integrated with the bearing 7 described above, so that when the roll brush 5 is moved up or down, the motor 9 is also moved together.

In addition, in the embodiment, a mode is shown in which the bearings 7 and 8 of the roll brush 5 are attached to brackets 16 and 16 provided with long holes 14 and 15 as means for supporting the roll brush 5 in a position-adjustable manner. The means for supporting the brush 5 is not particularly limited. Furthermore, the mounting position of the roll brush is not limited to the above, and may be provided at a suitable position inside the adjustment chassis 13, for example.

(Effect of the invention) As described above, the cleaning device for the adjusting wheel in a centerless grinding machine according to the present invention is provided with a roll brush that can be actively rotated in the same direction as the adjusting wheel while contacting the outer periphery of the adjusting wheel, A cleaning nozzle is provided that sprays coolant toward the contact area between the brush and the adjustment wheel, and during grinding, the roll brush is brought into contact with the outer periphery of the adjustment wheel and cleaned while rotating in the same direction as the adjustment wheel. By spraying the coolant liquid from the nozzle, the workpiece sludge adhering to the adjusting wheel is reliably removed by the roll brush and the coolant liquid, and the outer circumferential surface of the adjusting wheel can be kept clean at all times. . Furthermore, since the roll brush rotates in the same direction as the adjustment wheel to remove sludge from the adjustment wheel, its sludge removal effect is outstanding. Even if the adhesion of sludge caused by grinding is strong, such as in the case of grinding, the sludge adhering to the adjustment wheel can be effectively removed by the rotation of the roll brush and the cooperative action of the coolant liquid. This allows the outer periphery of the adjustment wheel to be kept clean at all times. Therefore, the grinding accuracy of the workpiece is significantly improved, especially for non-metallic materials,
This is advantageous when mass-grinding workpieces made of light metal materials, and the desired finishing accuracy can be ensured.

[Brief explanation of drawings]

The drawings show the main parts of the device of the present invention, with FIG. 1 being a side view and FIG. 2 being a front view showing the state in which the roll brush is attached. 1... Grinding wheel, 2... Adjustment wheel, 3... Support blade,
4... Workpiece, 5... Roll brush, 12... Cleaning nozzle.

Claims (1)

[Claims for Utility Model Registration] A roll brush is provided which is able to actively rotate in the same direction as the adjustment wheel while being in contact with the outer periphery of the adjustment wheel, and coolant liquid is directed toward the contact area between the roll brush and the adjustment wheel. A cleaning device for an adjustment wheel in a centerless grinding machine, characterized in that a cleaning nozzle for spraying a cleaning nozzle is provided.