JPH0145927B2 - - Google Patents
Info
- Publication number
- JPH0145927B2 JPH0145927B2 JP17581982A JP17581982A JPH0145927B2 JP H0145927 B2 JPH0145927 B2 JP H0145927B2 JP 17581982 A JP17581982 A JP 17581982A JP 17581982 A JP17581982 A JP 17581982A JP H0145927 B2 JPH0145927 B2 JP H0145927B2
- Authority
- JP
- Japan
- Prior art keywords
- contact
- composite
- button
- burr
- piece
- 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.)
- Expired
Links
- 239000002131 composite material Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 description 14
- 238000004080 punching Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910002482 Cu–Ni Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Manufacture Of Switches (AREA)
Description
【発明の詳細な説明】
本発明は、ボタン接点の製造方法に関するもの
である。ボタン接点は、通常バイメタル素材にプ
ロジエクシヨン溶接してバイメタルスイツチなど
に使用されるもので、接点形状は直径が3φ〜5φ
mm前後、厚さ１mm前後と比較的大きいため打抜き
により製造される。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a button contact. Button contacts are usually projection welded onto bimetallic materials and used in bimetal switches, etc. The contact shape is 3φ to 5φ in diameter.
It is manufactured by punching because it is relatively large, approximately 1 mm thick and approximately 1 mm thick.
すなわち、従来の製造方法は第１図〜第５図に
示すように、複合接点板１から円盤２を一定間隔
で打抜き、この円盤２を球面状の凹部３を先端面
に有する下型４とプロジエクシヨン用のリング状
の溝５を底に備えた凹部６を先端面に有する上型
７とによりプロジエクシヨン成形及びバリ出し加
工して、ベース材２１の外周面にバリ８を形成す
るとともにベース材２１の上面にリングプロジエ
クシヨン９を形成し、しかる後外周面のバリ８を
切断してボタン接点１０を製造していた。 That is, as shown in FIGS. 1 to 5, the conventional manufacturing method involves punching out disks 2 at regular intervals from a composite contact plate 1, and forming the disks 2 into a lower die 4 having a spherical recess 3 on the tip surface. A burr 8 is formed on the outer circumferential surface of the base material 21 by projec- tion molding and deburring using an upper mold 7 having a concave portion 6 on the bottom with a ring-shaped groove 5 for projec- tion on the bottom. At the same time, a ring projection 9 was formed on the upper surface of the base material 21, and then the burr 8 on the outer peripheral surface was cut off to manufacture the button contact 10.
しかしながら、従来の製造方法によれば、第２
図に示すように、プレス打抜きしたときベース材
２１と接点材２２との接合部分２３の外周の接合
強度が弱くなつている。そのため、ボタン接点１
０を台材にプロジエクシヨン溶接してバイメタル
接点として使用する場合、200℃前後の温度でく
り返し使用されるため熱膨張係数の違いから接合
強度の弱い箇所で接点材２２の外周接合面からめ
くれあがり、接点間距離が短かくなり異常作動や
短絡事故などをおこしていた。 However, according to the conventional manufacturing method, the second
As shown in the figure, the joint strength at the outer periphery of the joint portion 23 between the base material 21 and the contact material 22 is weakened when press punching is performed. Therefore, button contact 1
When projection welding 0 to a base material and using it as a bimetal contact, the contact material 22 may peel off from the outer joint surface at points where the joint strength is weak due to the difference in thermal expansion coefficient because it is used repeatedly at temperatures around 200°C. This caused the distance between the contacts to become shorter, causing abnormal operation and short-circuit accidents.
本発明は上記諸事情に鑑みなされたものであ
り、接点材とベース材との接合面の接合強度の強
いボタン接点の製造方法を提供するものである。 The present invention has been made in view of the above circumstances, and provides a method for manufacturing a button contact in which the bonding strength of the bonding surface between the contact material and the base material is strong.
本発明のボタン接点の製造方法は、複合接点テ
ープからそのテープ幅より大きい直径を有するほ
ぼ八角形の複合接点素片を打抜き、その打抜かれ
た複合接点素片の接点面から外周にバリ出し加工
を行つた後そのバリを切断することを特徴とする
ボタン接点の製造方法である。 The method for manufacturing a button contact of the present invention involves punching out a substantially octagonal composite contact piece having a diameter larger than the tape width from a composite contact tape, and deburring the outer periphery from the contact surface of the punched composite contact piece. This method of manufacturing a button contact is characterized in that the burr is cut off after the process is carried out.
以下、図面にもとづいて本発明の一実施例を説
明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第６図に示すように、幅4.15mm、厚さ２mmより
なるCu−Ni合金にAg−12％CdO合金の複合接点
テープ１１を直径4.5φmmの一部を切欠いたほぼ八
角形の抜き型により打抜き、第７図に示すような
複合接点素片２′をえた。 As shown in Fig. 6, a composite contact tape 11 made of Cu-Ni alloy with a width of 4.15 mm and a thickness of 2 mm and Ag-12% CdO alloy is cut out using an approximately octagonal cutting die with a diameter of 4.5 φmm and a partially cut out part. By punching, a composite contact piece 2' as shown in FIG. 7 was obtained.
次に、この複合接点素片２′を成形型により厚
さ1.5mm、直径５mmのプロジエクシヨンを有する
接点形状に接点面から外周にバリ出し加工し、第
８図に示すような、バリ付複合接点素片２″をえ
た。 Next, this composite contact element piece 2' is processed into a contact shape having a protrusion of 1.5 mm in thickness and 5 mm in diameter by burring from the contact surface to the outer periphery, as shown in Fig. 8. I got a composite contact element piece 2''.
その後この素片２″を打抜き、第９図ａに示す
ようなボタン接点１０′をえた。 Thereafter, this piece 2'' was punched out to obtain a button contact 10' as shown in FIG. 9a.
このとき、第９図ｂに示すようなバリ８′の外
周部にはき裂１２が発生するが、このき裂１２は
ボタン接点１０′まで及ぶことがない。 At this time, a crack 12 occurs on the outer periphery of the burr 8' as shown in FIG. 9b, but this crack 12 does not extend to the button contact 10'.
本発明によるボタン接点は上記の方法で製造さ
れているので、以下の利点を有する。 Since the button contact according to the invention is manufactured by the method described above, it has the following advantages.
バリ出し加工においてベース材だけでなくベー
ス材と接点材を一体として行うので接合強度が13
Kg／mm2と従来法の10Kg／mm2より強く接点使用時に
おける接合面からのはがれを防止できる。 In the deburring process, not only the base material but also the base material and contact material are processed as one unit, so the joint strength is 13.
Kg/mm 2 is stronger than the 10 Kg/mm 2 of the conventional method and can prevent peeling from the joint surface when using contacts.
ほぼ正八角形の複合接点素片から円盤状の接点
形状をのこしてバリ出し加工を行つているので素
材の伸びの不均一により接合強度が高まる。 Since the disc-shaped contact is removed from the approximately regular octagonal composite contact piece and deburred, the bonding strength is increased due to the uneven elongation of the material.
ボタン接点の製品に対する素材ロスが従来法に
よりも少ない。 There is less material loss for button contact products than with conventional methods.
以上、詳述したように、本発明によれば、接合
面の接合強度の強いボタン接点の製造方法を得る
ことができるという効果がある。 As described in detail above, according to the present invention, there is an effect that it is possible to obtain a method of manufacturing a button contact with a strong bonding strength of the bonding surface.
第１図から第５図までは従来の製造方法を示す
図で、第６図から第９図までは本発明の製造方法
を示す図である。第１図は複合接点テープの打抜
き方法を示す図、第２図は複合接点素片の断面
図、第３図はバリ出し加工とプロジエクシヨン成
形加工を示す断面図、第４図はバリ付複合接点素
片の断面図、第５図はボタン接点の断面図、第６
図は複合接点テープの打抜き方法を示す図、第７
図は複合接点素片の斜視図、第８図はバリ付接点
の断面図、第９図ａはボタン接点の接点面を示す
斜視図、第９図ｂはバリを示す斜視図である。
２′……複合接点素片、２″……バリ付複合接点
素片、８′……バリ、１０′……ボタン接点。
1 to 5 are diagrams showing the conventional manufacturing method, and FIGS. 6 to 9 are diagrams showing the manufacturing method of the present invention. Figure 1 is a diagram showing the method of punching composite contact tape, Figure 2 is a cross-sectional view of a composite contact piece, Figure 3 is a cross-sectional view showing burr removal processing and projection molding, and Figure 4 is a sectional view of the composite contact tape with burrs. Figure 5 is a cross-sectional view of the composite contact piece; Figure 5 is a cross-sectional view of the button contact; Figure 6 is a cross-sectional view of the button contact.
Figure 7 shows the method for punching composite contact tape.
8 is a sectional view of a contact with a burr, FIG. 9a is a perspective view of a contact surface of a button contact, and FIG. 9b is a perspective view of a burr. 2'... Composite contact piece, 2''... Composite contact piece with burr, 8'... Burr, 10'... Button contact.
Claims (1)
直径を有するほぼ八角形の複合接点素片を打抜
き、その打抜かれた複合接点素片の接点面から外
周にバリ出し加工を行つた後そのバリを切断する
ことを特徴とするボタン接点の製造方法。1. Punch out a roughly octagonal composite contact piece with a diameter larger than the tape width from the composite contact tape, deburr the contact surface of the punched composite contact piece from the outer periphery, and then cut off the burr. A method for manufacturing a button contact, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17581982A JPS5966017A (en) | 1982-10-06 | 1982-10-06 | Method of producing button contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17581982A JPS5966017A (en) | 1982-10-06 | 1982-10-06 | Method of producing button contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5966017A JPS5966017A (en) | 1984-04-14 |
| JPH0145927B2 true JPH0145927B2 (en) | 1989-10-05 |
Family
ID=16002777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17581982A Granted JPS5966017A (en) | 1982-10-06 | 1982-10-06 | Method of producing button contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5966017A (en) |
-
1982
- 1982-10-06 JP JP17581982A patent/JPS5966017A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5966017A (en) | 1984-04-14 |
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