JPH07132444A - Jet arrival position confirming jig - Google Patents

Abstract

PURPOSE:To confirm the arrival position of jet, jetted from a nozzle before jetting so as to be able to easily perform the correct positioning of the nozzle. CONSTITUTION:A jet arrival position confirming jig 20 for confirming the arrival position of jet, jetted from a nozzle 10, before jetting is removably fitted to the nozzle 10, and this jig 20 has an emitter 30 emitting light on the same axis as the jet locus of the jet from the nozzle 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention jets a high-pressure machining fluid (cutting fluid, cleaning fluid, water leakage inspection fluid, etc.), compressed air, powder (e.g., steel particles for shot blasting), and other jets. From the nozzle, the position where these jets reach
The present invention relates to a jet arrival position confirmation jig for confirming before the jetting.

[0002]

2. Description of the Related Art Conventionally, as a device for ejecting an ejected substance,
There is one disclosed in JP-A-58-202775. As shown in FIG. 7, the apparatus has a chamber 113 to which the high pressure liquid is supplied and a nozzle 111 which ejects the high pressure liquid from the chamber 113. And
The high-pressure liquid supplied from the high-pressure liquid supply pipe 109 to the chamber 113 is ejected from the nozzle 111.

[0003]

By the way, an ejected substance such as a high-pressure liquid needs to be ejected to a predetermined machining position (desired ejection position) of a work. However, in the above-mentioned conventional device, no special measures have been taken to inject the ejected material to a predetermined position. For this reason, a method has been taken in which the ejected substance is actually ejected, the ejection destination is visually confirmed, and then the position of the nozzle is adjusted. But,
When the jet is actually jetted, if the jet speed is high, the jet will scatter by rebounding largely after reaching the workpiece, so the arrival position on the workpiece can be clearly confirmed. Therefore, the nozzle cannot be accurately positioned. However, if the ejected material is ejected at a low speed only when positioning the nozzle for that purpose, a device for switching the ejection speed in two stages is required, and the entire device becomes large-scale and the cost becomes high. There is a drawback that. Further, when the ejected substance is compressed air or the like, the flow of air cannot be visually observed, and thus the nozzle cannot be accurately positioned.

Therefore, it is an object of the present invention to provide a device capable of confirming the arrival position of an ejected substance ejected from a nozzle before the ejection.

[0005]

In order to solve this problem, the present invention provides a jet arrival position confirmation jig for confirming the arrival position of an ejected substance ejected from a nozzle before the ejection. The jig is detachably attached to the nozzle, and the jig, in its attached state, has a light emitting body that emits light on the same axis as the ejection locus of the ejected matter from the nozzle. It is characterized by having. That is, the light emitter emits light along the predetermined axis when the jig is attached.

[0006]

The jig according to the present invention is detachably attached to the nozzle. Then, in the mounted state, the light emitting body emits light on the same axis as the ejection locus of the ejected substance from the nozzle. Therefore, the position where the light emitted from the light-emitting body reaches and the point where the ejected material is actually ejected from the nozzle and reaches the same. For this reason, the arrival position of the ejected object can be confirmed by the light before the ejected object is ejected.

[0007]

【Example】

<First Embodiment> Next, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a nozzle 10 for injecting an injection product has a substantially cylindrical shape, and an injection product supply pipe 12 is joined to a rear end portion thereof. Nozzle 10
An injection hole 14 is formed at the center of the tip of the. An attached portion 16 is formed around the tip of the nozzle 10. The attached portion 16 has an outer diameter smaller than that of the other portions, and a step surface 18 is formed at the rear end portion thereof. The nozzle 10 may be made of a stainless material. Water is generally used as the cutting liquid when the cutting liquid is jetted as an ejected substance, so that it is for rust prevention at that time.

Projector 20 as a jet arrival position confirmation jig
Has a substantially cylindrical shape. A mounting portion 22 is formed at the rear end of the projector 20. The attachment portion 22 is formed in a circular concave shape corresponding to the attachment portion 16. The rear end surface of the mounting portion 22 is a contact surface 24 that contacts the step surface 18 of the nozzle 10. And the projector 20
Is detachably fitted and attached to the attached portion 16 of the nozzle 10 at the attaching portion 22.

A light emitter 30 is provided at the tip end side inside the projector 20. The position of the light-emitting body 30 is on the extension axis line in the direction in which the ejected material is ejected from the ejection hole 14 of the nozzle 10 (that is, the central portion of the tip end portion of the nozzle 10), and the light-emitting body 30 has its axis. It has a structure that emits light in the direction of the line.

The light emitting body 30 is provided with the following electric circuit. That is, as shown in FIG. 2, with respect to the power supply 32, the resistor 33 and the light emitting body 30 are
They are connected in series via 36b. Both terminals 36a and 36b are exposed on the inner side surface of the mounting portion 22 of the projector 20. Therefore, both terminals 36a and 36b are in a non-conductive state when the projector 20 is not attached to the nozzle 10, and both terminals 36a and 36b connect the nozzle 10 when the projector 20 is attached to the nozzle 10 (conductor). It becomes conductive through.

Next, a method of using the projector 20 and its operation will be described. Before the ejected substance is ejected from the nozzle 10, the projector 20 is first attached to the attached portion 16 of the nozzle 10 at the attaching portion 22. At that time, the magnetic paste layer 38 is formed by coating the attached portion 16 of the nozzle 10 with a magnetic paste formed by dissolving magnetic powder with viscous oil.
Is formed, and the projector 20 is attached with the magnetic paste layer 38 interposed. Therefore, as described above, even if the nozzle 10 is made of a stainless material, it can be sufficiently magnetized (the stainless material has a weak magnetic force and cannot be directly magnetized). The projector 20 is the nozzle 10.
Attached to the light source 20, both terminals 36a, 36 of the projector 20 are attached.
b is brought into a conductive state through the nozzle 10, and light H is emitted from the light emitting body 30 by electricity from the power source 32. Since the emission direction of the light H is the same as the direction in which the ejected substance is ejected from the ejection hole 14 of the nozzle 10, the position irradiated by the light H coincides with the position where the ejected substance is actually ejected. Becomes Therefore, it is possible to confirm whether or not the irradiation position of the work W is the desired injection position X for ejecting the ejected matter, and if the position is displaced, the position of the nozzle 10 is changed. Adjustment is made so that the irradiation site coincides with the desired injection position X at which the ejected substance is desired to be ejected. In this way, next, when the projector 20 is removed and the ejected substance is actually ejected from the nozzle 10, the ejected substance can be just ejected to the desired injection position X of the work W.

<Second Embodiment> Next, a second embodiment, which is a modification of the first embodiment, will be described with reference to FIG. In this embodiment, the screw 42 is attached to the mounting portion 16 of the nozzle 10.
Are formed. On the other hand, a female screw 40 is formed on the mounting portion 22 of the light projector 20. Then, by screwing the female screw 40 into the male screw 42, the projector 20
Is attached to the nozzle 10.

<Third Embodiment> Next, a third embodiment, which is a modification of the first embodiment, will be described with reference to FIG. In this embodiment, an engagement groove 50 is formed on the peripheral side of the attached portion 16 of the nozzle 10. On the other hand, the projector 2
A plurality of fitting holes 52 (only one is shown in the drawing) are radially provided inside the mounting portion 22 of 0, and compression springs 54 are fitted in the respective fitting holes 52, and the tip end of the compression spring 54 is provided. Each of the balls 56 provided is pressed in a direction of protruding from the fitting hole 52. A stopper (not shown) prevents each ball 56 from protruding from the fitting hole 52 beyond a predetermined position.

The light projector 20 is attached to or removed from the nozzle 10 as follows. The light projector 20 is applied to the nozzle 10 and pressed toward the nozzle 10. Then, at the tip of the nozzle 10, each ball 5
6 moves so as to enter the inside of the fitting hole 52 against the elastic restoring force of the compression spring 54. And further, the projector 2
When 0 is moved to the nozzle 10 side, when the engagement groove 50 is located in the projecting direction of each ball 56, each ball 56 moves in the direction projecting from the fitting hole 52 by the elastic restoring force of the compression spring 54. Engage with the engaging groove 50. In this way, the projector 20 can be attached to the nozzle 10 with one touch. Further, by performing the reverse operation, the projector 20 can be removed from the nozzle 10 with one touch.

<Fourth Embodiment> Next, a fourth embodiment of the present invention will be described with reference to FIGS. In this embodiment, the distance of the nozzle 10 from the work W can also be set to a predetermined distance. The difference from the first embodiment will be mainly described. At the tip of the projector 70, the light emitter 30
And a light receiver (phototransistor) 72 are provided side by side. Lenses 74 and 76 are provided in front of the light emitter 30 and the light receiver 72. Each of the lenses 74 and 76 is provided so as to be inclined by a predetermined angle so as to have the operation described later. A display lamp 80 is provided on the side surface of the projector 70. Then, an electric circuit including these is formed as shown in FIG. That is, with respect to the power source 32, the light emitting element 3 is
0 and the resistor 33 are connected in series. Then, the series circuit is completed by connecting the terminals 36a and 36b to the nozzle 10. on the other hand,
The light source 72, the resistor 35, and the exciting coil 82a of the relay 82 are connected in series to the power source 32 in parallel with the light emitter 30 and the like. Also, the light source 7 is connected to the power source 32.
The contact 82b of the relay 82 and the display lamp 80 are connected in series in parallel with 2 and the like.

Next, the method of use and operation of this embodiment will be described. When the light projector 70 is attached to the nozzle 10, both terminals 36a and 36b are brought into conduction and the light emitter 30 is turned on, and light H is emitted from the light emitter 30. The light H advances toward the work W while being refracted and converged by the lens, and hits the work W (desired injection position X) to be reflected. When the distance between the light projector 70 and the work W is a predetermined distance L, the reflected light Hr reaches the lens 76, is refracted by the lens 76, and is received by the light receiver 72.
Is received by. When the light receiver 72 receives the reflected light Hr, the light receiver (phototransistor) 72 is turned on, the exciting coil 82a of the relay 82 is turned on, and the contact 82b of the relay 82 is turned on.
The indicator lamp 80 lights up. As a result, the projector 70
It is confirmed that the distance between the work W and the work W is a predetermined distance L. When the distance between the projector 70 and the work W is not the predetermined distance L, the display lamp 80 does not light up. For this reason, the projector 70 is checked while confirming whether the display lamp 80 is turned on.
It is possible to guide the distance between the light projector 70 and the work W to a predetermined distance L by adjusting the front and back (direction of approaching and separating from the work W). In this way, in this embodiment, the distance of the projector 70 from the work W can also be determined to be a predetermined distance. After the jetting of the cutting fluid or the like from the nozzle 10, the pressure of the jetting object decreases according to the distance from the nozzle 10. Therefore, it is necessary to keep the distance between the nozzle 10 and the work W at a predetermined distance. If so, this embodiment is effective.

In this embodiment, the display lamp 8
A speaker is connected instead of 0, and the projector 70.
When the distance between the works W is the predetermined distance L and the light receiver receives the reflected light, sound may be emitted from the speaker.

Further, in each of the above-described embodiments, by mounting the light projector 70 on the nozzle 10, the terminals 36a and 36b are automatically brought into conduction and the light emitting body 30 is turned on. However, the present invention is not limited to this, and a switch for turning on and off the light emitting body 30 may be separately provided. In addition, it goes without saying that the present invention can be implemented in a mode in which various modifications are made based on the knowledge of those skilled in the art.

[0019]

By attaching the jig according to the present invention to the nozzle, it is possible to confirm in advance the arrival position of the ejected substance ejected from the nozzle. It is possible to adjust the position of the nozzle so as to reach the desired injection position.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a first embodiment of the present invention.

FIG. 2 is a diagram showing an electric circuit of the first embodiment.

FIG. 3 is a side view showing a mounting portion in the second embodiment of the present invention.

FIG. 4 is a side view showing a mounting portion according to a third embodiment of the present invention.

FIG. 5 is a side sectional view showing a fourth embodiment of the present invention.

FIG. 6 is a diagram showing an electric circuit of a fourth embodiment.

FIG. 7 is a diagram showing a conventional example.

[Explanation of symbols]

 10 Nozzle 20, 70 Projector (Jet arrival position confirmation jig) 22 Mounting part 30 Light emitter

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location // B23Q 11/10 B B24C 9/00 Z

Claims (1)

[Claims] 1. A jet arrival position confirmation jig for confirming the arrival position of an ejected matter ejected from a nozzle before the ejection, the jig being detachably attached to the nozzle. In addition, the jig has a light emitting body that emits light on the same axis as the ejection locus of the ejected matter from the nozzle in the mounted state, the ejection arrival position confirmation jig.