JP2539533Y2 - Ultrasonic tool mounting jig - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an ultrasonic tool mounting jig for easily mounting an ultrasonic tool on a horn for transmitting ultrasonic vibration used in a tool head of an ultrasonic machine. About.

[0002]

2. Description of the Related Art In recent years, when machining difficult-to-cut materials such as non-conductive materials such as ceramics and glass, particularly when machining small-diameter holes and irregular-shaped holes in difficult-to-cut materials, cracks are reduced. Attention has been paid to an ultrasonic processing machine using ultrasonic waves capable of performing processing with high accuracy. FIG. 3 is a front view showing an ultrasonic head portion of the ultrasonic machine, that is, a portion transmitting ultrasonic vibrations to the ultrasonic tools 14 and 14.

As shown in FIG. 1, an ultrasonic head 10 comprises:
The ultrasonic oscillator 11 includes a cone 12, a horn 13, and ultrasonic tools 14, 14. The ultrasonic vibration generated by the ultrasonic oscillator 11 is amplified by the cone 12, and the horn 13 passes through the horn 13. It transmits to the ultrasonic tools 14,14. Here, a male screw portion 13a for fastening as shown in FIG.
The male screw part 1a is attached to the female screw part 12a
By screwing 3a, the cone 12 can be connected. Further, tool mounting holes 13b, 13b are formed at the tip of the horn 13, and the ultrasonic tools 14, 1 are formed.
No. 4 was soldered with its base inserted into the tool mounting holes 13b, 13b.

Conventionally, horns 13 of ultrasonic tools 14, 14
The horn 13 removed from the cone 12 is fixed with a vice or the like, and the operator inserts the bases of the ultrasonic tools 14 and 14 into the tool mounting holes 13b and 13b, and the supersonic horn 13 is held with one hand as it is. Hold down the sonic tools 14, 14,
The other hand is used to pour solder into the gap between the tool mounting holes 13b, 13b.

[0005]

One of the precautions to be taken when mounting the ultrasonic tool is to keep the center axes of the horn and the ultrasonic tool parallel. In other words, if the parallel alignment between the horn and the ultrasonic tool is not accurate, the amplitude of the ultrasonic vibration transmitted to the tool tip may be abnormal, or a biased load may act on the tool during machining, causing damage. To do that. However,
In the conventional tool mounting operation as described above, the parallel alignment between the horn and the ultrasonic tool depends on the operator's feeling, and thus is inaccurate and difficult. Therefore, in order to improve the parallelism between the horn and the ultrasonic tool, it was conceivable to reduce the clearance of the tool mounting hole with respect to the ultrasonic tool.However, in such a case, the solder was smoothly inserted into the tool mounting hole. , And there was a risk that defective soldering would occur.

[0006] The present invention has been made in view of the above-mentioned circumstances, and makes it easy to attach an ultrasonic tool to a horn.
Moreover, it is an object of the present invention to provide an ultrasonic tool mounting jig capable of improving the parallelism between the horn and the ultrasonic tool and realizing a reliable mounting state.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for inserting and fixing a base of an ultrasonic tool into a tool mounting hole formed at a tip of a horn for transmitting ultrasonic vibration. A jig for mounting an ultrasonic tool, horn support means for supporting the horn in an upright posture, tool guide support means having a guide hole through which the ultrasonic tool can be inserted, and this tool guide support means And holding the guide hole so as to be positioned on the same axis as the tool mounting hole of the horn supported by the horn support means, and comprising a movable holding means capable of moving the tool guide support means. is there.

[0008]

Therefore, in the present invention, the horn is mounted in an upright posture with respect to the horn support means, and the position of the tool guide support means is set so that the tool mounting hole and the guide hole of the horn thus mounted are positioned on the same axis. Adjust and then insert the base of the ultrasonic tool through the guide hole into the tool mounting hole of the horn. As a result, the tool guide and support means supports the ultrasonic tool while maintaining a parallel state with the horn. Therefore,
Soldering work can be easily performed while maintaining high parallelism.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a partial sectional front view showing an embodiment of the present invention. In the figure, reference numeral 1 denotes a jig base, on which a jig plate 2 and a stand 3 are provided. The jig plate 2 constitutes horn support means, and a female screw portion 2a for screwing the male screw portion 13a of the horn 13 is formed in the center of the upper surface in the vertical direction. On the other hand, the stand 3 is provided upright on the jig base 1 and has a step 3a at a predetermined length from the upper end.
Above “a” is a narrow head sliding portion 3b. 4
Is a jig head having a through hole 4a in the base, and the through hole 4a is loosely fitted in the head sliding portion 3b. The jig head 4 is also provided with an arm portion 4b so as to protrude sideways.
Are formed, and a fitting hole 4c is provided in the arm portion 4b. A bush 5 as tool guide and support means is fitted and fixed to the fitting hole 4c. The stand 3 and the jig head 4 constitute a moving and holding means for the bush 5. The bush 5 has guide holes 5a, 5a through which the ultrasonic tools 14, 14 are inserted without play.
The intervals between the guide holes 5a, 5a correspond to the tool mounting holes 13b, 13b provided at the tip of the horn 13.

Here, the configurations of the jig head 4 and the head sliding portion 3b of the stand 3 will be described in more detail.
That is, the key 6 is fixed to the lower portion of the head sliding portion 3b, while a key groove 4d for engaging with the key 6 is formed on the inner wall of the through hole 4a in the jig head 4.
When the key 6 is engaged with the key groove 4d and the jig head 4 is in contact with the step 3a at the lower end of the head sliding portion 3b, the guide holes 5a,
5b are adjusted so as to be located on the same axis as the tool mounting holes 13b, 13b at the tip of the horn 13 on the jig plate 2, respectively. Further, the bush 5 in this state is adjusted so as to be at a height position capable of supporting an intermediate portion of the ultrasonic tools 14, 14 having their bases inserted into the tool mounting holes 13b, 13b of the horn 13. Further, in a state where the jig head 4 is moved upward and the key groove 4d is detached from the key 6 (a state shown by the imaginary line in the figure), the bush 5 is located above the upper ends of the ultrasonic tools 14 and 14 on the horn 13. The jig head 4 is configured to be rotatable around the head sliding portion 3b. Reference numeral 7 denotes a cap for preventing the jig head 4 from being detached from the head sliding portion 3b.

Next, an ultrasonic tool mounting procedure using the ultrasonic tool mounting jig having the above-described configuration will be described. First, the male screw portion 13a of the horn 13 is screwed into the female screw portion 2a of the jig plate 2, and the horn 13 is set upright. On the other hand, the bush 5 is fixed to the fitting hole 4c of the jig head 4 in advance. Then, the jig head 4 is moved to engage the key groove 4d with the key 6, and a state is set in which the lower end of the base of the jig head 4 is in contact with the step 3a. In this state, the guide holes 5a of the bush 5,
5a is located on the same axis as the tool mounting holes 13b, 13b provided in the horn 13 on the jig plate 2. Therefore, when the ultrasonic tools 14, 14 are inserted into the guide holes 5a, 5a from the upper surface side of the bush 5, the ultrasonic tools 1
The bases of the horns 1 and 4 are guided by guide holes 5a and 5a.
3 are inserted into the tool mounting holes 13b, 13b, and the intermediate portions of the ultrasonic tools 14, 14 are supported in the guide holes 5a, 5a. This state is, of course, a state in which the horn 13 and the ultrasonic tools 14, 14 maintain a high degree of parallelism.

Subsequently, the solder melted by using a soldering iron is poured into a gap between the tool mounting holes 13b, 13b to perform soldering. Here, since the clearance between the tool mounting holes 13b, 13b and the ultrasonic tools 14, 14 can be made sufficiently wider than in the conventional case where the tools are manually supported, it is necessary to pour a sufficient amount of solder. And the possibility of poor soldering is eliminated. After the soldering is completed, the jig head 4 is lifted, and the key groove 4d is detached from the key 6.
At this time, since the jig head 4 is lifted along the key 6, the bush 5 can be smoothly separated from the ultrasonic tools 14, 14 without applying a load to the tools.
Then, the jig head 4 is rotated around the head sliding portion 3b to retract the bush 5 from above the horn 13, and then the horn 13 is removed from the jig plate 2 to complete the work of mounting the ultrasonic tool. I do.

FIG. 2 shows a modification of the ultrasonic tool mounting jig of the present invention. That is, in the above-described embodiment, the soldering operation was performed using the soldering iron. However, the induction heater 20 was provided around the horn 13 to further facilitate this operation. The induction heater 20 includes an oscillator 21 and an induction coil 22, and the induction coil 22 is disposed around the horn 13 set on the jig plate 2. Then, after the ultrasonic tools 14, 14, the horn 13 is heated by the heater 20, so that the solder is melted and the solder can be poured into the tool mounting holes 13b, 13b. According to this modification, it is not necessary to use a soldering iron, so that the operation can be further facilitated.

The present invention is not limited to the above-described embodiments and modifications. For example, the number and shape of the ultrasonic tools to be attached to the horn differ depending on the processing content. Therefore, it is preferable to prepare a bush having a guide hole corresponding to the number and shape of the ultrasonic tools to be mounted on the horn, and fix the required bush to the jig head as appropriate. The material of the bush is not limited, but as an example, the bush is formed of an elastic material such as synthetic rubber,
If the ultrasonic tool is elastically supported by being pushed into the guide hole, more accurate parallelism can be maintained without rattling.

[0015]

As described above, according to the ultrasonic tool mounting jig of the present invention, the horn and the ultrasonic tool can be supported in a stable state while maintaining high parallelism. This has the effect of facilitating the mounting operation of the horn, improving the parallelism between the horn and the ultrasonic tool, and realizing a reliable mounting without soldering defects.

[Brief description of the drawings]

FIG. 1 is a partial sectional front view showing an embodiment of the present invention.

FIG. 2 is a partial sectional front view showing a modification of the present invention.

FIG. 3 is a partially sectional front view showing an ultrasonic head unit in the ultrasonic processing machine.

FIG. 4 is a partially cutaway front view showing a horn and an ultrasonic tool.

[Explanation of symbols]

 Reference Signs List 1 jig base 2 jig plate 3 stand 4 jig head 5 bush 5a guide hole 13 horn 13b tool mounting hole 14 ultrasonic tool

Claims (1)

(57) [Scope of request for utility model registration] An ultrasonic tool mounting jig for inserting and fixing a base of an ultrasonic tool into a tool mounting hole formed at a tip of a horn for transmitting ultrasonic vibration, wherein the horn is set upright. A horn support means for supporting the ultrasonic tool in a set posture, a tool guide support means having a guide hole through which the ultrasonic tool can be inserted, and a tool hole supporting the horn support means while holding the tool guide support means. A tool for holding the tool guide supporting means so as to be positioned on the same axis as the tool mounting hole of the horn.