JPS62204887A - Vibrator - Google Patents
VibratorInfo
- Publication number
- JPS62204887A JPS62204887A JP4788786A JP4788786A JPS62204887A JP S62204887 A JPS62204887 A JP S62204887A JP 4788786 A JP4788786 A JP 4788786A JP 4788786 A JP4788786 A JP 4788786A JP S62204887 A JPS62204887 A JP S62204887A
- Authority
- JP
- Japan
- Prior art keywords
- leaf spring
- attached
- piezoelectric element
- vibrator
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は圧電素子を駆動源とする振動機に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a vibrator using a piezoelectric element as a driving source.
第５図は圧電素子を駆動源とする従来の振動フィーダを
示すものであるが、図においてトラフ（１ｊはベース（
２〕と前後１対の傾斜した駆動板ばねアセンブリ（３ａ
）（３ｈ）により結合されている。ベース（２）は防振
ゴム（４）によ多床上に支持されている。Figure 5 shows a conventional vibrating feeder that uses a piezoelectric element as a driving source.
2] and a pair of front and rear inclined drive leaf spring assemblies (3a
) (3h). The base (2) is supported on a multi-bed by anti-vibration rubber (4).
駆動板ばねアセンブ！Ｊ （３ａ）（３ｂ）は同一の構
成であるので、一方のアセンプ’） （３ａ）について
のみ説明すると主板ばね（５）の両面には板状の圧電素
子（６＆）（６ｈ）が貼着されておシ、主板ばね（５）
の下端部はボルトによりベース（２）に固定され、その
上端部はボルト（９）によシ補助板ばね（７）に固定さ
れる。補助板ばね（７）の上端部はトップ（１１の底部
に固定され九プＱｙり（８）にボルトにより固定される
。Drive leaf spring assembly! Since J (3a) and (3b) have the same configuration, only one assembly (3a) will be explained.Plate-shaped piezoelectric elements (6&) (6h) are attached to both sides of the main leaf spring (5). Main leaf spring (5)
Its lower end is fixed to the base (2) by a bolt, and its upper end is fixed to the auxiliary leaf spring (7) by a bolt (9). The upper end of the auxiliary leaf spring (7) is fixed to the bottom of the top (11) and fixed to the top (8) with bolts.
圧電素子（６ａ）（６ｂ）の外面には図示せずとも電極
面が形成され、これらに同電位の交流電圧Ｖが印加され
る。圧電素子（６ａ）（６ｂ）は交互に伸縮するように
極性が定められている。図においである電位でｅは伸び
ｔ−ｅは縮を表わしている。Electrode surfaces (not shown) are formed on the outer surfaces of the piezoelectric elements (6a) (6b), and an alternating current voltage V of the same potential is applied to these electrode surfaces. The polarities of the piezoelectric elements (6a) and (6b) are determined so that they alternately expand and contract. In the figure, e represents expansion and te represents contraction at a certain potential.
然るに圧電素子（６ａ）（６ｈ）は例えばセラミック（
磁器）から成り非常に大きい剛性を有するのでこれを貼
着した板ばね（５）の変位は十数ミクロンである。補助
板ばね（７）はトラフ（１ｊの変位を大きくする友めに
、かつ振動系の固有振動数を適正値にするために用いら
れている。然しなから、補助板ばね（７）と主板ばね（
５）との組み立て作業は面倒でありその整列にも注意し
なければならない。However, the piezoelectric elements (6a) (6h) are made of ceramic (
It is made of porcelain and has very high rigidity, so the displacement of the leaf spring (5) to which it is attached is more than ten microns. The auxiliary leaf spring (7) is used to increase the displacement of the trough (1j) and to adjust the natural frequency of the vibration system to an appropriate value. Spring (
The assembly work with 5) is troublesome, and care must be taken to align them.
本発明は上述の問題に鑑みてなされ、大きな振巾を得な
がら組み立てが簡単な振動機を提供することを目的とす
る。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vibrator that is easy to assemble while providing a large vibration width.
以上の目的は、一端部全作業体に取り付け、他端部を板
ばね取付台に取り付けた板ばねの前記他端部側の板ばね
部分の両面に圧電素子を貼着し、前記一端部側の板ばね
部分にこの部分のはね常数が小さくなるように切欠きを
形成したことを特徴とする振動機によって達成される。The above purpose is to attach piezoelectric elements to both sides of the leaf spring part on the other end side of a leaf spring whose one end is attached to the entire work body and the other end is attached to the leaf spring mounting base, and This is achieved by a vibrator characterized in that a notch is formed in the leaf spring portion of the leaf spring so that the spring constant of this portion is small.
圧電素子に交流電圧を印加すると、該圧電素子を貼着さ
せた板ばね部分の振巾は小さいが、この作業体側の部分
の振巾は板ばねのばね常数が小さいので、振巾が太きい
。すなわち、作業体の振巾は太きい。When an alternating current voltage is applied to the piezoelectric element, the amplitude of the leaf spring portion to which the piezoelectric element is attached is small, but the amplitude of the portion on the work body side is large because the spring constant of the leaf spring is small. . In other words, the swing width of the work body is large.
従来のように補助用板ばねを用いないので、組み立てが
簡単でちゃ、部品点数も小とすることができる。Since an auxiliary leaf spring is not used as in the conventional case, assembly is easy and the number of parts can be reduced.
以下、本発明の実施例による振動フィーダについて第１
図及び第２図を参照して説明する。なお図において従来
例を示す第５図と対応する部分については同一の符号上
付すものとする。Hereinafter, the first part about the vibration feeder according to the embodiment of the present invention will be described.
This will be explained with reference to the drawings and FIG. In the drawings, parts corresponding to those in FIG. 5 showing the conventional example are given the same reference numerals.
本実施例の板ばね（ＩＯＡＸＩＯＢ）は第２図に示すよ
うな形状を有し、上端側の両縁部に切欠き備が形成され
て小ばね常数部分四としている。下端側には従来例と同
様に両面に圧電素子（６ａ）（６ｂ）が貼着され、駆動
部分Ｕとしている。上端部（ト）には丸孔（ロ）が形成
され、これにボルトαηを挿通してブロック（８）に固
定される。同様に下端部に丸孔Ｑ４が形成されボルトａ
ａを挿通してペース（２）に固定される。The leaf spring (IOAXIOB) of this embodiment has a shape as shown in FIG. 2, and notches are formed at both edges on the upper end side to form a small spring constant portion of 4. Piezoelectric elements (6a) and (6b) are attached to both surfaces of the lower end side, as in the conventional example, to form a driving portion U. A round hole (b) is formed in the upper end (g), and a bolt αη is inserted through the hole to be fixed to the block (8). Similarly, a round hole Q4 is formed at the lower end of the bolt a.
a is inserted and fixed to the pace (2).
上述のような板ばね（ＩＯＡＸＩＯＢ）によシトラフ（
１１とベース（２）とは結合されるのであるが、このよ
うな振動系の共振振動数は交流電圧Ｖの周波数とはシ一
致しているものとする。圧電素子（６ａ）（６ｂ）に交
流電圧ｖを印加すると従来例と同様にトラフ（１）は大
きな振巾で振動する。組み立てにおいては従来のような
補助用板ばねはなく板ばね（ＩＯＡＸＩＯＢ）単体であ
るので、取付作業が容易である。また従来では主板ばね
（５）と補助用板ばね（７）との結合のためにボルトを
通すための丸孔を形成しなければならず、この分、補助
用板ばねの長さを太きくしなければならないので、結果
として振動フィーダ全体の高さ金大きくしていたが、本
実施例では単体の板ばねから成るので、これを従来よシ
小さくすることができる。A leaf spring (IOAXIOB) as described above is used to create a seat rough (
11 and the base (2) are coupled, but it is assumed that the resonance frequency of such a vibration system is the same as the frequency of the alternating current voltage V. When an alternating current voltage v is applied to the piezoelectric elements (6a) (6b), the trough (1) vibrates with a large amplitude as in the conventional example. When assembling, there is no auxiliary leaf spring like in the past, but a single leaf spring (IOAXIOB), so the installation work is easy. Additionally, in the past, a round hole had to be formed for the bolt to pass through to connect the main leaf spring (5) and the auxiliary leaf spring (7), so the length of the auxiliary leaf spring had to be made thicker. As a result, the height of the entire vibrating feeder has been increased, but in this embodiment, since it is composed of a single leaf spring, this can be made smaller than in the conventional case.
第３図は板ばねの変形例金示すもので、木板ばね（２０
Ａ）も駆動部分Ｑυと小ばね常数部分（２ｚとから成り
、第２図の実施例とは切欠き＠の形状が異なシ、はゾ円
弧状である。関はトップ（υ又はベース（２）に取り付
けるｍめのボルトを通す孔である。本実施例も第２図の
実施例と同様な作用を行ない効果を奏することは明らか
である。Figure 3 shows a modified example of a leaf spring, which is a wooden leaf spring (20
A) also consists of a driving part Qυ and a small spring constant part (2z), and the shape of the notch is different from the embodiment shown in FIG. ) is the hole through which the m-th bolt is passed.It is clear that this embodiment also performs the same function and effect as the embodiment shown in FIG.
第４図は板ばねの他変形例金示すもので、木板ばね（３
０Ａ）も駆動部分１１３１）と小ばね常数部分６ｚとか
ら成９．第２図の実施例とは切欠き（至）の形状が異な
り、はゾＬ字形状である。図はトラフ（υ又はペース（
２）に取り付ける之めのボルトを通す孔である。Figure 4 shows a modified example of a leaf spring, including a wooden leaf spring (3
0A) also consists of a driving part 1131) and a small spring constant part 6z. The shape of the notch is different from that of the embodiment shown in FIG. 2, and is L-shaped. The figure shows the trough (υ) or pace (
This is the hole through which the bolt to be attached to 2) is passed.
本実施例も第２図の実施例と同様な作用を行ない効果を
奏することは明らかである。It is clear that this embodiment also performs the same function and effect as the embodiment shown in FIG. 2.
以上、不発明の実施例について説明したが、勿論、本発
明はこれに限定されることなく本発明の技術的思想に基
づいて種々の変形が可能でおる。Although the non-inventive embodiments have been described above, the present invention is of course not limited thereto, and various modifications can be made based on the technical idea of the present invention.
例えば以上の実施例では直線的なトラフを有する振動フ
ィーダを説明したが、他の振動機、例えばスパイラル状
のトラックを有する振動パーツフィーダにも本発明は適
用可能である。For example, in the above embodiments, a vibratory feeder having a linear trough has been described, but the present invention is also applicable to other vibrators, such as a vibrating parts feeder having a spiral track.
また以上の実施例では各圧電素子に同電位を加えるよう
にして、各圧電素子の極性を板ばねの表裏で伸縮が逆と
なるように定めたが、これに代え、極性を同一にして電
位が板ばねの表裏で逆となるように交流電源と接続する
ようにしてもよい。Furthermore, in the above embodiment, the same potential was applied to each piezoelectric element, and the polarity of each piezoelectric element was determined so that the expansion and contraction were opposite on the front and back sides of the leaf spring. The connection to the AC power source may be made such that the front and back sides of the leaf spring are reversed.
’！′ｆｃ切欠きＱａｃ２３田の形状も図示のものに限
定場れることはない。'! The shape of the 'fc notch Qac23 is also not limited to that shown in the drawings.
以上述べたように本発明の振動機によれば、組み立てが
簡単でちゃ、また機体の高さを小さくすることができる
。As described above, according to the vibrator of the present invention, assembly is easy and the height of the machine body can be reduced.
第１図は本発明の実施例による振動フィーダの電気的結
線と共に示す側面図、第２図は同要部の板ばねの正面図
、第３図は第２図の板ばねの変形例の正面図、第４図は
同地変形例の正面図、及び第５図は従来の振動フィーダ
の電気的結線と共に示す側面図である。
なお図において、Fig. 1 is a side view of a vibrating feeder according to an embodiment of the present invention together with its electrical connections, Fig. 2 is a front view of a leaf spring of the same essential parts, and Fig. 3 is a front view of a modification of the leaf spring of Fig. 2. FIG. 4 is a front view of the modified example, and FIG. 5 is a side view showing the conventional vibrating feeder together with electrical connections. In the figure,
Claims (1)
り付けた板ばねの前記他端部側の板ばね部分の両面に圧
電素子を貼着し、前記一端部側の板ばね部分にこの部分
のばね常数が小さくなるように切欠きを形成したことを
特徴とする振動機。One end of the leaf spring is attached to the work body and the other end is attached to the leaf spring mounting base.A piezoelectric element is pasted on both sides of the leaf spring part on the other end side, and the piezoelectric element is attached to the leaf spring part on the one end side. A vibrator characterized in that a notch is formed so that the spring constant of this part is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4788786A JPS62204887A (en) | 1986-03-04 | 1986-03-04 | Vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4788786A JPS62204887A (en) | 1986-03-04 | 1986-03-04 | Vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62204887A true JPS62204887A (en) | 1987-09-09 |
Family
ID=12787908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4788786A Pending JPS62204887A (en) | 1986-03-04 | 1986-03-04 | Vibrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62204887A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6023119B2 (en) * | 1979-12-03 | 1985-06-05 | ダウ コ−ニング コ−ポレ−シヨン | Novel mercaptoorganosiloxane |
| JPS624120A (en) * | 1985-06-28 | 1987-01-10 | Toshiba Corp | Piezoelectric driving type conveyer |
-
1986
- 1986-03-04 JP JP4788786A patent/JPS62204887A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6023119B2 (en) * | 1979-12-03 | 1985-06-05 | ダウ コ−ニング コ−ポレ−シヨン | Novel mercaptoorganosiloxane |
| JPS624120A (en) * | 1985-06-28 | 1987-01-10 | Toshiba Corp | Piezoelectric driving type conveyer |
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