JP2571852Y2 - Grinding fluid nozzle with splash prevention nozzle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding fluid nozzle for a cylindrical grinding machine, and more particularly to a grinding fluid nozzle having a scattering prevention nozzle.

[0002]

2. Description of the Related Art Conventionally, in a cylindrical grinder, a grinding fluid nozzle for supplying a grinding fluid near a grinding point during a grinding process is shown in FIG.
As shown in (1), a grinding fluid nozzle 102 that discharges the grinding fluid over the grinding point of the grindstone so that a large amount of the grinding fluid is applied to the grinding point of the work W and the grindstone 101 is used.

[0003]

The grinding fluid supplied by the grinding fluid nozzle described in the prior art needs to be supplied to the grinding point in a relatively large amount in order to enhance the cooling effect and the lubrication effect. For this reason, a large amount of the grinding fluid rebounds when hitting the work or the grindstone. In addition, mist is generated. Therefore, although a waterproof measure is an essential condition for a cylindrical grinder, it is not perfect and requires maintenance. Also, if the waterproof cover for preventing the scattering of the grinding fluid or its mist scattered outside the machine is made strict, it becomes inconvenient to monitor and measure the grinding state and to attach and detach the work, thereby lowering the work efficiency. For this reason, there is a problem that it is necessary to minimize the splashing of the grinding fluid and the scattering of the mist. The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to provide a simple waterproofing measure by suppressing the scattering of the grinding fluid to improve the effect and to provide a scattering prevention nozzle. It is intended to provide a grinding fluid nozzle.

[0004]

In order to achieve the above object, a grinding nozzle with a scattering prevention nozzle according to the present invention has a cylindrical shape.
At the grinding fluid nozzle of the grinding machine,
A first nozzle for discharging a grinding fluid toward a stone surface;
Discharges the grinding fluid outside the nozzle and ahead of the grinding point
A second nozzle is provided and bounces off the workpiece
Forming a grinding fluid curtain outside the grinding fluid
You. In addition, in the grinding fluid nozzle of the cylindrical grinding machine, the grinding point
A first nozzle for discharging a grinding fluid toward the vicinity;
A second nozzle for making a grinding fluid curtain is provided in front of the swarf,
Furthermore, the long side facing the lower side of the second nozzle is parallel to the workpiece axis
A convex arc-shaped blocking plate that blocks the rear side of a
The grinding liquid curtain is ejected from the first nozzle.
This is to surround the front of the discharged grinding fluid.

[0005]

The grinding fluid discharged toward the grinding point during the grinding process is partially scattered or mist hits the grindstone or the work, but is not interrupted by the grinding fluid curtain flowing around it and does not fly out. . Further, since the grinding liquid curtain is set to the best condition by adjusting the opening area of the discharge port by the shielding plate and controlling the diffusion range and the flow rate, the scattering of the grinding liquid by the grinding liquid curtain itself is small.

[0006]

An embodiment will be described with reference to the drawings. A grindstone 1 is removably attached to the left end of a grindstone shaft rotatably mounted on a headstock (not shown) of the cylindrical grinder, and a grindstone cover body 2 is fixed to the grindstone stand. It is provided so that it can be opened and closed. Front and rear (X axis) on the front side (right side in FIGS. 1 to 3) on the upper plate of the grinding wheel cover 2
A nozzle mounting seat 3 having a long hole in the direction is fixed, and a rectangular grinding fluid nozzle 4 is mounted on the nozzle mounting seat 3 so as to be movable.

As shown in the cross-sectional view of FIG. 3, the inside of the grinding liquid nozzle 4 is divided into two parts by a partition wall 5, and the rear side is provided with a first nozzle 6 for supplying the grinding liquid near the grinding point, and the front side is prevented from scattering. Formed on the second nozzle 7. The first nozzle 6 has a grinding fluid intake 6a on the upper rear side, and the back plate 4a
Discharge port 6 facing the grinding wheel surface above the grinding point at the lower end of the
b is open, the second nozzle 7 has a grinding fluid intake port 7a on the upper side surface, and the bottom plate 4 is tilted as its front side rises.
A second discharge port 7b having a rectangular shape whose long side is parallel to the axis of the workpiece W is opened at b.

Further, a relay block 8 is fixed at a position on the upper plate near the rear side on the upper side of the grinding wheel cover body 2, and a hole 8 in the X-axis direction concentric with the grinding fluid intake port 6 a formed in the relay block 8.
The distribution box 11 is fixed to the rear end of the “a” via the relay pipe 9. The tip of a threaded pipe 14 is axially movably and airtightly fitted into the hole 8a of the relay block 8 via the pipe joints 12 and 13 into the grinding fluid inlet 6a of the grinding fluid nozzle 4, and the grindstone is inserted. It is possible to cope with the position movement of the nozzle 4 due to a change in the diameter.

The distribution box 11 is screwed with a grinding fluid intake base 15 and a grinding fluid supply base 16 of the intake port 7a of the second nozzle 7, and is connected to a block 17 communicating with the grinding fluid intake port 7a. A flexible pipe 19 is attached between the screwed base 18 and the base 16. The pipe 19 is guided by the U-shaped groove 8b formed in the relay block 8 and having an upper opening, and corresponds to the position movement of the grinding fluid nozzle 4.

Furthermore the bottom plate 4 b of the grinding nozzles 4 the shield plate 21 is fixed so as to be positioned moved back and forth with a length hole 21a for mounting, the second ejection convex arc surface 21b of the shield plate 21 is rectangular The rear side of the exit 7b is movably closed so that the second
A grinding fluid curtain is formed so that the grinding fluid flowing out of the discharge port 7b surrounds the front of the grinding fluid applied to the grinding point along the grindstone 1 from the first discharge port 6b.

Next, the operation of the embodiment will be described. Now, the workpiece W is subjected to grinding by traverse cutting. During the grinding, the grinding fluid is discharged from the first discharge port 6b of the first nozzle 6 toward the surface of the grindstone 1, and is applied to the grinding point along the outer periphery of the grindstone. The grinding fluid partially collides with the grindstone 1 or the work W, and rebounds, scatters or forms a mist. A grinding fluid curtain is formed so that the grinding fluid discharged from the second discharge port 7b of the second nozzle 7 surrounds the periphery. Therefore, it does not get caught in the grinding liquid curtain and jump out of the curtain.

Since the opening area of the second discharge port 7b is adjusted by the shielding plate 21 to control the flow rate and the diffusion range of the grinding fluid curtain, the grinding fluid curtain itself scatters less grinding fluid. Therefore, even when the grindstone 1 approaches the headstock or tailstock (not shown) during grinding, the amount of the scattered grinding fluid is small, so that the grinding fluid applied to the headstock or tailstock is small, and waterproof measures are facilitated. In addition, since little grinding fluid and mist are scattered to the worker side, it is possible to prevent the splatter from being scattered out of the machine only with a simple front waterproof cover, thereby improving workability and workplace environment.

[0013]

[Effects of the Invention] Since the present invention is configured as described above, the following effects can be obtained. The inside of the grinding nozzle is separated into a first nozzle and a second nozzle, and a grinding liquid curtain is formed by a second nozzle around a grinding liquid discharged near a grinding point by the first nozzle to prevent scattering of the grinding liquid. As a result, the amount of the grinding fluid and mist scattered is reduced, the amount of exposure to the grinding fluid such as the headstock and tailstock is reduced, the waterproofing measure is facilitated, and the maintenance cost is reduced. In addition, since the scattering of the grinding fluid and the mist to the worker side is reduced and the grinding fluid that jumps out of the machine can be prevented only with the simple front waterproof cover, the workability is improved, and the work environment is improved. .

[Brief description of the drawings]

FIG. 1 is a side view showing the vicinity of a grinding fluid nozzle without a lid of a grindstone cover of the present embodiment.

FIG. 2 is a top view of FIG.

FIG. 3 is a sectional view of a grinding fluid nozzle.

FIG. 4 is an AA line view of FIG.

FIG. 5 is a side view illustrating a flow of a grinding fluid during grinding.

FIG. 6 is a perspective view illustrating a flow of a grinding fluid during grinding.

FIG. 7 is a side view illustrating a flow and a scattering state of a grinding fluid according to a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Whetstone 2 Whetstone cover main body 4 Grinding fluid nozzle 6 First nozzle 6b First discharge port 7 Second nozzle 7b Second discharge port 21 Shielding plate 21b Convex arc surface W Work

Claims (2)

(57) [Scope of request for utility model registration] 1. A grinding fluid nozzle for a cylindrical grinding machine, wherein
At the upper position near the cutting point, discharge the grinding fluid toward the grinding wheel surface.
One nozzle and outward of the first nozzle and in front of the grinding point
And a second nozzle for discharging the grinding fluid
The grinding fluid curtain outside the grinding fluid that bounced off
A grinding fluid nozzle with a scattering prevention nozzle characterized by being formed . 2. The grinding liquid nozzle of a cylindrical grinding machine,
A first nozzle for discharging a grinding fluid toward a vicinity of a cutting point;
A second nozzle for making a grinding fluid curtain is installed in front of one nozzle.
In addition, the long side that faces the lower side of the second nozzle is
Convex arc-shaped blocking plate that blocks the rear side of parallel rectangular discharge ports
Is provided so that its position can be adjusted, and if the grinding fluid curtain is the first nozzle
Around the front of the grinding fluid discharged from the
Shatterproof grinding fluid nozzle with a nozzle to symptoms.