JP3021054B2 - Hydro cutting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
A hydro-cutting device that cuts hard and brittle flat work such as printed circuit boards, ceramics, carbon fiber, and glass materials, and thermally sensitive titanium materials by injecting a high-pressure fluid from a hydro nozzle. .

[0002]

2. Description of the Related Art FIG. 5 is a side view showing a schematic configuration of the above-mentioned hydro-cutting apparatus. A portal frame 2 is erected in the middle of a flat machine 1 so as to straddle the machine 1. A horizontal guide rail 3 extending in the front-rear direction is provided on one side surface of the horizontal portion 2a of the portal frame 2, and a nozzle moving body 4 is mounted on the horizontal guide rail 3 so as to be movable in the front-rear direction. A jet nozzle 5 is attached to the nozzle moving body 4 in a downward direction, and the high-pressure fluid supplied through a high-pressure fluid pipe 6 connected to the jet nozzle 5 is jetted from the jet nozzle 5 to make the machine move. The work W mounted on the table 1 so as to be movable in the left-right direction is cut.

FIG. 6 is a longitudinal sectional view of an injection nozzle used in the above-described hydro-cutting apparatus. The tip of the high-pressure fluid pipe 6 is inserted and mounted in a nozzle holder 11 in which a water nozzle 10 is mounted. It is. The nozzle holder 11 is mounted in an upper body 12 having an annular flange portion 12a formed on an outer peripheral portion. A lower half of the upper body 12 is mounted on a lower body 14 having an abrasive nozzle 13 mounted on a lower end. I have.

The outer surface of the lower half of the upper body 12 is formed in a spherical shape on which the head is mounted, and the inner surface of the lower body 14 is also formed in a spherical shape corresponding thereto.
2a is inserted and engaged between the upper portion of the lower body 14 and its lid 15, and the spherical portion of the upper body 12 is pressed against the spherical inner surface of the lower body 14 by adjusting the adjusting screw 16 mounted on the lid 15. Have been. On the other hand, below the opening 12b formed at the lower end of the upper body 12, a mixing chamber 17 for mixing the abrasive with the high-pressure fluid is formed. In the mixing chamber 17, the high-pressure fluid mixed with the abrasive is abrasively mixed. The ink is ejected from the nozzle 13.

[0005]

Incidentally, in such an apparatus, it is necessary to keep the energy of the high-pressure fluid ejected from the abrasive nozzle 13 as high as possible. Therefore, by adjusting the adjusting screw 16, the relative relationship between the upper body 12 and the lower body 14 is adjusted using the spherical engagement portion so that the jet flowing out of the water nozzle 10 and the axis of the abrasive nozzle 13 coincide with each other. . However, in such a case, when the axis of the abrasive nozzle 13 is inclined from the vertical axis, as shown in FIG.
However, there is a problem that the cut surface 18 is inclined and the product may be defective. In view of the foregoing, an object of the present invention is to provide a hydro-cutting device that can prevent a jet stream ejected from the abrasive nozzle 13 from tilting, thereby preventing a cut surface of a workpiece W from tilting. .

[0006]

According to the present invention, an injection nozzle holding member is mounted on one side of a vertical base fixed to a nozzle moving body so as to be swingably adjustable about a horizontal axis orthogonal to the vertical base. The injection nozzle is mounted on the injection nozzle holding member so as to be freely rotatable around its axis.

[0007]

After adjusting the injection nozzle around its axis so that the jet stream is in a plane parallel to the vertical base,
The jet nozzle holding member is pivotally adjusted together with the jet nozzle about a horizontal axis so that the jet stream is located in a vertical plane orthogonal to the vertical base. In this way, the jet flow can be adjusted to be always vertical.

[0008]

1, 2, and 3 are a perspective view, a front view, and a partial vertical sectional side view, respectively, showing a schematic configuration of an injection nozzle support portion of the apparatus of the present invention. The vertical base 20 is fixed to the nozzle moving body, and the injection base holding plate 21 is swung in a vertical plane parallel to the vertical base 20 by a pin 22 (FIG. 3) extending in a horizontal direction. Adjustably mounted. The injection nozzle holding plate 21 is provided with an arc-shaped slit 23 centered on the pin 22, and a bolt 24 inserted in the slit 23 is fastened to the vertical base 20, whereby the injection nozzle By fixing the holding plate 21 to the vertical base 20 or loosening the bolt 24, the injection nozzle holding plate 21 can be swung about the pin 22. A plate 25 extending in the vertical direction is fixed to the front surface of one side of the injection nozzle holding plate 21.
6a and 26b are protruded.

The upper portion of the spray nozzle 5 is suspended from the lower bracket 26b so as to be rotatable around its vertical axis. The water receiving block 27 of the spray nozzle 5 is disposed on the upper surface of the lower bracket 26b.
Water supply block 29 connected to water supply pipe 7 via water supply pipe 28
Is mounted on the lower surface of the upper bracket 26a so as to be rotatable around the same axis as the spray nozzle 5, and the water supply block 29 and the water receiving block 27 are integrally connected to each other by a connection member 30. Also, lower bracket 2
6b is provided with an arc-shaped slit 31 centered on the center axis of the injection nozzle 5 mounted on the lower bracket 26b, and a bolt 32 inserted into the slit 31 is screwed to the connecting member 30. The connecting member 30, that is, the rotation position of the injection nozzle 8 can be fixed by the bolt 32.

On the other hand, a first gauge plate 33 extending downward from the vertical base 20 is mounted on the vertical base 20 so as to be vertically adjustable. The first gauge plate 33 has one side edge in a vertical state corresponding to the central axis of the injection nozzle 5 when viewed directly toward the vertical base 20, that is, in a vertical plane including the pin 22. A second gauge plate 34 extending downward is also mounted on one side edge of the injection nozzle holding plate 21 so as to be vertically adjustable. The second gauge plate 34 also has one side edge of the vertical base 2
When viewed in a direction parallel to 0, the injection nozzle 5 is in a vertical state corresponding to the central axis.

Thus, the abrasive nozzle is inclined with respect to the axis of the injection nozzle, and the direction of the jet flowing from the abrasive nozzle of the injection nozzle 5 is as shown in FIG.
As shown by a solid arrow in FIG. 3, when the nozzle 32 is deflected in any direction when viewed from directly above, the bolt 32 is first loosened and the injection nozzle 5 is rotated about the vertical axis through the connecting member 30. Then, the jet flow is made to coincide with one side edge of the second gauge plate 34 when viewed in a direction parallel to the vertical base 20. That is, the jet stream ejected from the ejection nozzle 5 is set in a plane parallel to the vertical base 20 as indicated by a dotted arrow in FIG. Then, in this state, the bolt 32 is tightened to fix the ejection nozzle 5 to the ejection nozzle holding plate 21.

Then, the bolt 24 is loosened and the injection nozzle holding plate 21 is swung about the pin 22 together with the injection nozzle 5 so that the jet flow coincides with one side edge of the first gauge plate 33. The injection nozzle 5 is fixed to the vertical base 20 by tightening the bolt 24. By this adjustment, the jet flow becomes vertical as shown by the dotted arrow in FIG. 4B, and the cut surface is reliably prevented from being inclined.

[0013]

Since the present invention is constructed as described above, the rotation of the injection nozzle about its axis and the adjustment of the tilt in a plane parallel to the vertical base are simply performed by adjusting the jet flow with the jet flow with the side edge of the gauge plate. The jet flow can be easily made perpendicular to the work simply by observing the relationship, and the inclination of the cut surface can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of an injection nozzle holding section of the apparatus of the present invention.

FIG. 2 is a partial cross-sectional front view of an injection nozzle holding unit of the apparatus of the present invention.

FIG. 3 is a partial cross-sectional side view of an injection nozzle holding section of the apparatus of the present invention.

4 (a) and 4 (b) are diagrams for explaining the operation of the present invention, respectively.

FIG. 5 is a side view showing a schematic configuration of a hydro cutting device.

FIG. 6 is a partial vertical sectional side view of an injection nozzle.

FIG. 7 is an explanatory diagram of a state at the time of cutting.

[Explanation of symbols]

 5 Injection nozzle 20 Vertical base 21 Injection nozzle holding plate 22 Pin 23,31 Slit 24,32 Bolt 26a, 26b Bracket 33,34 Gauge plate

Claims (1)

(57) [Claims] An injection nozzle holding member is mounted on one side surface of a vertical base so as to be swingable about a horizontal axis orthogonal to the vertical base, and the injection nozzle is turned on the injection nozzle holding member around the vertical axis. A vertically adjustable gauge plate having one side edge perpendicular to the vertical plane including the horizontal axis line on which the injection nozzle holding member is mounted is vertically mounted on the vertical base, and is perpendicular to the vertical base. A hydro-cutting device, wherein a second gauge plate for detecting the perpendicularity of a projection line of a fluid jet is provided vertically downward on a plane.