JPH0565270B2 - - Google Patents
Info
- Publication number
- JPH0565270B2 JPH0565270B2 JP8252387A JP8252387A JPH0565270B2 JP H0565270 B2 JPH0565270 B2 JP H0565270B2 JP 8252387 A JP8252387 A JP 8252387A JP 8252387 A JP8252387 A JP 8252387A JP H0565270 B2 JPH0565270 B2 JP H0565270B2
- Authority
- JP
- Japan
- Prior art keywords
- movable electrode
- steel
- power supply
- station
- steel ball
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 65
- 239000010959 steel Substances 0.000 claims description 65
- 238000003466 welding Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000000137 annealing Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Landscapes
- Resistance Welding (AREA)
- Heat Treatment Of Articles (AREA)
- Wire Processing (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、例えば自動車のエアコン用コンプレ
ツサー等に使用されるシリンダロツドの製造方法
に関し、さらに詳しくは、みがき鋼棒の両先端
に、ボールジヨイントとして組み込まれる鋼球を
圧接する溶接加工と、その後、溶接部を加熱して
その溶接部を母材と同等若しくは少なくとも溶接
のままよりは硬度を低下させる焼鈍加工とを含む
ボール付シリンダロツドの製造方法に係る。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for manufacturing a cylinder rod used for example in an automobile air conditioner compressor, and more specifically, a method for manufacturing a cylinder rod used for example in an automobile air conditioner compressor. A method for producing a cylinder rod with a ball, which includes a welding process in which steel balls are welded together under pressure, and then an annealing process in which the welded part is heated and the welded part is made to have a hardness equal to or at least lower than that of the base material as it is welded. Pertains to.
（従来の技術）
従来、前記コンプレツサー等のピストンシリン
ダに組み込まれるボール付シリンダロツドは、電
動機の回転運動を直線ピストン運動に換えるため
に、シリンダロツドを形成するみがき鋼棒のピス
トン連結側と電動機連接側とにボールジヨイント
を形成して連結するベアリング用鋼球を溶接し、
その後溶接部に耐久性を増すための、熱処理を施
して構成される。(Prior Art) Conventionally, a ball-equipped cylinder rod that is incorporated into a piston cylinder of the compressor, etc., has a piston connection side and an electric motor connection side of a polished steel rod that forms the cylinder rod, in order to convert the rotational movement of the electric motor into a linear piston movement. A ball joint is formed and a connecting steel ball is welded to the bearing.
The welded parts are then heat treated to increase durability.
（発明の解決しようとする問題点）
しかしながら、従来の製造方法は、溶接加工か
ら溶接後の焼鈍加工に至までの作業工程は殆ど非
能率的な作業方法であるため、精度のバラツキは
もちろん生産性、安全性を欠き、工業的製造上の
見地からみても望ましくない。(Problem to be solved by the invention) However, in the conventional manufacturing method, the work process from welding to post-weld annealing is almost inefficient, so there is not only variation in precision but also production It lacks safety and performance, and is undesirable from an industrial manufacturing standpoint.
（問題点を解決するための手段）
そこで、本発明は、鋼球と鋼棒との溶接工程か
ら溶接部の熱処理工程までを全自動で精密に行う
製造方法を提供するもので、その発明概要は、鋼
棒を溶接位置に供給してこれをバツクアツプおよ
び給電クランプで保持し、次いで鋼棒の一方の先
端に、可動電極の電極面に保持した鋼球を押圧し
て給電クランプと可動電極とに電流を通して加
圧、溶接する第１ステーシヨン、該第１ステーシ
ヨンから鋼棒を搬出し、次いで鋼棒の他方の先端
に、可動電極の電極面に保持された鋼球を加圧、
溶接する第２ステーシヨン、該第２ステーシヨン
で溶接加工した鋼棒を、引き続き搬送して焼鈍加
工位置に供給し、これをバツクアツプ及び給電ク
ランプで保持し、給電クランプと可動電極間に電
流を流して一方の鋼球の溶接部を焼鈍する第３ス
テーシヨン、該第３ステーシヨンで焼鈍加工した
後、これを再び次の焼鈍加工位置に供給してバツ
クアツプ及び給電クランプで保持し、給電クラン
プと可動電極とに電流を流して他方の鋼球の溶接
部を焼鈍する愛４ステーシヨンとを含むボール付
シリンダロツドの製造方法であることを特徴とす
る。(Means for Solving the Problems) Therefore, the present invention provides a manufacturing method that fully automatically and accurately performs a process from welding a steel ball and steel rod to a heat treatment process for the welded part. In this method, a steel rod is supplied to a welding position, held by a backup and power supply clamp, and then a steel ball held on the electrode surface of a movable electrode is pressed onto one tip of the steel bar to connect the power supply clamp and movable electrode. A first station that applies current to pressurizes and welds the steel rod, carries out the steel rod from the first station, then presses a steel ball held on the electrode surface of the movable electrode to the other end of the steel rod,
A second station is used for welding, and the steel rod welded at the second station is continuously transported and supplied to the annealing processing position, held by a backup and power supply clamp, and a current is passed between the power supply clamp and the movable electrode. A third station anneales the welded part of one steel ball. After annealing at the third station, it is again supplied to the next annealing position and held by a backup and power supply clamp, and the power supply clamp and movable electrode are connected to each other. and an A4 station for annealing the welded portion of the other steel ball by applying a current to the steel ball.
また、可動電極の電極面に鋼球を直接吸着し、
これを相手方の鋼棒に加圧して、給電クランプと
可動電極との間に電流を流して加圧、溶接する
際、給電クランプと可動電極との間に、ストツパ
を介在し可動電極の加圧方向の変位値を規制し、
溶接品質のバラツキを無くすようにしたことを特
徴とする。 In addition, the steel ball is directly adsorbed on the electrode surface of the movable electrode,
When applying pressure to the other steel rod and applying pressure and welding by passing a current between the power supply clamp and the movable electrode, a stopper is interposed between the power supply clamp and the movable electrode to pressurize the movable electrode. Regulate the displacement value in the direction,
It is characterized by eliminating variations in welding quality.
（実施例）
以下、本発明の「実施例」を図面を参照しなが
ら説明する。(Example) Hereinafter, "Example" of the present invention will be described with reference to the drawings.
なお第１図は、本発明方法にかかる全自動ライ
ン方式でシリンダロツドを生産する場合の概略図
である。 Note that FIG. 1 is a schematic diagram of the case where cylinder rods are produced by a fully automatic line method according to the method of the present invention.
同図において、先ず、パーツフイーダ（図省
略）から送られた鋼棒１をトランスフアー装置２
のチヤツク装置３により第１ステーシヨンS1の溶
接位置に配置したバツクアツプ４の上に送る。そ
の鋼棒１をバツクアツプ４と給電クランプ５とで
固定した後、鋼棒１の上端に対応して上下動する
可動電極６の電極面に形成した鋼球受容部７の真
下に鋼球８を供給し、鋼球受容部７から吸引され
るエアの吸引力で吸着、保持される。次いで可動
電極６を下降し、鋼球８を鋼棒１の上端に押圧
し、給電クランプ５と可動電極６を介して溶接電
流を流して鋼棒１と鋼球８とを加圧、溶接する。
次いで第１ステーシヨンS1で溶接を終えた鋼棒１
をチヤツク装置９で第２ステーシヨンS2に送り、
ここで前工程と同様に鋼棒１をバツクアツプ１０
の下に送り込み、鋼棒の下端に対応して上下動す
る可動電極１１の電極面の鋼球受容部７に鋼球１
２を供給し、これを吸着、保持する。次いで可動
電極１１を上昇し、鋼棒１の下端に鋼球１２を押
圧し、給電クランプ１３と可動電極１１との間に
溶接電流を流して鋼棒１と鋼球１２とを加圧、溶
接する。第２ステーシヨンS2の溶接によつて形成
されたシリンダロツドＷをチヤツク装置１４によ
り第３ステーシヨンS3のバツクアツプ１５の上に
供給し、バツクアツプ１５と給電クランプ１６と
で固定する。次いで可動電極１７を下降しバツク
アツプ１５の間でシリンダロツドＷを押え給電ク
ランプ１６と可動電極１７との間に電流を流して
溶接部を加熱し、溶接部の硬度を少なくとも母材
と同等もしくは溶接のままよりも硬度を再現性よ
く低下させる。次に第３ステーシヨンS3で一方の
溶接部の焼鈍加工を終えた後、そのシリンダロツ
ドＷをチヤツク装置１８で第４ステーシヨンS4に
移送する。バツクアツク１９と可動電極２０との
間に供給する。ここで前工程と同様にバツクアツ
プ１９と可動電極２０とでシリンダロツドＷを押
さえ、給電クランプ２１と可動電極２０との間に
電流を流し、他方の鋼球１２の溶接部を加熱しそ
の硬化した溶接部を熱処理する。 In the figure, first, a steel rod 1 sent from a parts feeder (not shown) is transferred to a transfer device 2.
The chuck device 3 sends it onto the backup 4 placed at the welding position of the first station S1 . After fixing the steel rod 1 with a backup 4 and a power supply clamp 5, a steel ball 8 is placed directly below a steel ball receiving portion 7 formed on the electrode surface of a movable electrode 6 that moves up and down corresponding to the upper end of the steel rod 1. The steel ball is attracted and held by the suction force of air sucked from the steel ball receiving portion 7. Next, the movable electrode 6 is lowered, the steel ball 8 is pressed against the upper end of the steel rod 1, and a welding current is passed through the power supply clamp 5 and the movable electrode 6 to pressurize and weld the steel rod 1 and the steel ball 8. .
Next, the steel rod 1 that has been welded at the first station S 1
is sent to the second station S2 by the chuck device 9,
Here, as in the previous step, back up the steel rod 10
A steel ball 1 is inserted into the steel ball receiving portion 7 on the electrode surface of the movable electrode 11, which moves up and down corresponding to the lower end of the steel rod.
2 is supplied, and this is adsorbed and held. Next, the movable electrode 11 is raised, the steel ball 12 is pressed against the lower end of the steel rod 1, and a welding current is passed between the power supply clamp 13 and the movable electrode 11 to pressurize and weld the steel rod 1 and the steel ball 12. do. The cylinder rod W formed by welding of the second station S 2 is supplied onto the backup 15 of the third station S 3 by the chuck device 14 and fixed by the backup 15 and the power supply clamp 16 . Next, the movable electrode 17 is lowered and the cylinder rod W is held down between the back-up 15 and a current is passed between the power supply clamp 16 and the movable electrode 17 to heat the welded part, so that the hardness of the welded part is at least equal to that of the base material or that of the welding material. Reduces hardness with better reproducibility than as-is. Next, after annealing of one of the welded parts is completed at the third station S3 , the cylinder rod W is transferred to the fourth station S4 by the chuck device 18. It is supplied between the backup 19 and the movable electrode 20. Here, as in the previous step, the cylinder rod W is held down by the backup 19 and the movable electrode 20, a current is passed between the power supply clamp 21 and the movable electrode 20, the welded part of the other steel ball 12 is heated, and the weld is hardened. Heat treat the parts.
熱処理が終了すると、シリンダロツドＷが可動
電極２０と給電クランプ２１から開放され、チヤ
ツク装置２２でシリンダロツドＷが次の工程に搬
送される。 When the heat treatment is completed, the cylinder rod W is released from the movable electrode 20 and the power supply clamp 21, and the cylinder rod W is transported to the next step by the chuck device 22.
なお、可動電極の電極面に保持した鋼球を溶接
する際、給電クランプと可動電極との間に、スト
ツパ２３を介挿することにより、電極面の消耗で
電極移動が変化しても前記ストツパ２３が鋼球受
容部の溝の深さｈを固定することができ、溶接品
質のバラツキを無くすことができる。 In addition, when welding the steel ball held on the electrode surface of the movable electrode, by inserting the stopper 23 between the power supply clamp and the movable electrode, the stopper 23 can be inserted even if the electrode movement changes due to wear of the electrode surface. 23 can fix the depth h of the groove of the steel ball receiving portion, and can eliminate variations in welding quality.
第２図及び第３図は、第１及び第２ステーシヨ
ンに配置される可動電極装置のユニツト構造に示
す要部断面図及びその平面図である。 FIGS. 2 and 3 are a sectional view of a main part and a plan view thereof showing a unit structure of a movable electrode device arranged at the first and second stations.
この可動電極６と１１は、電極チツプ２４を嵌
着するチツプホルダ２５を固着したスライド体２
６が、第３図に示すように矢印イ，ロの二方向に
ボルトB1、B2で移動調節が可能なように、溶接
機の加圧シリンダのラム２７に固定されたプラテ
ン２８に装着してある。これにより鋼棒の先端に
対する鋼球の位置決め精度の芯出しが容易にでき
るようう、配慮がなされている。 The movable electrodes 6 and 11 are connected to a slide body 2 to which a chip holder 25 into which an electrode chip 24 is fitted is fixed.
6 is attached to the platen 28 fixed to the ram 27 of the pressure cylinder of the welding machine so that the movement can be adjusted in the two directions of arrows A and B with bolts B 1 and B 2 as shown in Fig. 3. It has been done. Consideration has been made so that the positioning accuracy of the steel ball relative to the tip of the steel rod can be easily centered.
第４図は、第３及び第４ステーシヨンに配置さ
れる可動電極装置のユニツト構造を示す要部断面
図である。 FIG. 4 is a sectional view of a main part showing the unit structure of the movable electrode device arranged at the third and fourth stations.
この可動電極１７と２０は、加圧シリンダのラ
ムに固着されたプラテン２９に、二次バー３０が
固着され、この二次バーに固着されたデイス３１
の円筒内３２には電極チツプ３３を嵌着したチツ
プホルダ３４が自在継手を形成するリンクボール
３５を介して回動自在に取付けられている。そし
てチツプホルダ３４はフレキシブルな導電線３８
を介して二次バー３０と接続されていて、しかも
デイス３１のボールプランジヤー３６により自在
に動けるように支持されている。これにより、電
極面の鋼球受容部が鋼球の球面に完全に適合する
ように、可動電極が自在に動けるよう配慮がなさ
れている。 These movable electrodes 17 and 20 have a secondary bar 30 fixed to a platen 29 fixed to a ram of a pressurizing cylinder, and a disk 31 fixed to this secondary bar.
A chip holder 34 having an electrode chip 33 fitted therein is rotatably attached to the inside of the cylinder 32 via a link ball 35 forming a universal joint. The chip holder 34 is made of flexible conductive wire 38.
It is connected to the secondary bar 30 via a ball plunger 36 of the disk 31, and is supported so as to be freely movable. This allows the movable electrode to move freely so that the steel ball receiving portion on the electrode surface perfectly matches the spherical surface of the steel ball.
なお、チツプホルダ３４に嵌着した電極チツプ
３３はチツプ抜きナツト３７により容易に着脱、
交換できるようになつている。 The electrode chip 33 fitted into the chip holder 34 can be easily attached and removed using the chip extractor nut 37.
It is now replaceable.
（発明の効果）
以上のように、本発明によれば、自動車のエア
コン等び使用される冷凍圧縮機のシインダロツド
を精度よく製造する場合に、みがき鋼棒及び鋼球
を４つのステーシヨンからなる溶接及び熱処理工
程にトランスフア装置により自動供給しながら、
溶接と熱処理を全自動で行うことができるから、
シリンダロツドを短い生産タクトで連続的に生産
することができる。(Effects of the Invention) As described above, according to the present invention, when manufacturing cylinder rods of refrigeration compressors used in automobile air conditioners and the like with high precision, polished steel rods and steel balls are welded using four stations. While automatically supplying it to the heat treatment process using a transfer device,
Because welding and heat treatment can be performed fully automatically,
Cylinder rods can be produced continuously with a short production tact.
また溶接する際に可動電極と給電クランプの間
に電極の消耗による変位量を規制するストツパを
備えることで、電極面の鋼球受容部の深さｈを一
定に保ち、常に高い溶接品質を一様に得ることが
できる。 In addition, by providing a stopper between the movable electrode and the power supply clamp during welding to restrict the amount of displacement due to electrode wear, the depth h of the steel ball receiving portion on the electrode surface is kept constant, ensuring consistently high welding quality. You can get it like this.
第１図は、本発明にかかる製造方法の全自動ラ
インの一実施例を示す概略図。第２図は、本発明
の溶接工程で使用される可動電極の構造例を示す
要部断面図。第３図は、前記可動電極の平面図。
第４図は本発明の熱処理工程で使用される可動電
極の構造例を示す要部断面図。
１……鋼棒、８，１２……鋼球、Ｗ……シリン
ダロツド、４，１０……バツクアツプ、５，１３
……給電クランプ、６，１１……可動電極、７…
…鋼球受容部、１７，２０……可動電極、１６，
２１……給電クランプ、１５，１９……バツクア
ツプ、S1……第１ステーシヨン、S2……第２ステ
ーシヨン、S3……第３ステーシヨン、S4……第４
ステーシヨン。
FIG. 1 is a schematic diagram showing an embodiment of a fully automatic line of the manufacturing method according to the present invention. FIG. 2 is a sectional view of a main part showing a structural example of a movable electrode used in the welding process of the present invention. FIG. 3 is a plan view of the movable electrode.
FIG. 4 is a sectional view of a main part showing an example of the structure of a movable electrode used in the heat treatment process of the present invention. 1... Steel rod, 8, 12... Steel ball, W... Cylinder rod, 4, 10... Back up, 5, 13
...Power supply clamp, 6, 11...Movable electrode, 7...
... Steel ball receiving part, 17, 20 ... Movable electrode, 16,
21...Power supply clamp, 15, 19...Backup, S1 ...First station, S2... Second station, S3 ...Third station, S4 ...Fourth station
station.
Claims (1)
および給電クランプで保持すると共に、前記鋼棒
の一方の先端に、可動電極の電極面に保持した鋼
球を押圧し、給電クランプと可動電極間に電流を
流し加圧、溶接する第１ステーシヨン、該第１ス
テーシヨンから鋼棒を搬出し、次いで鋼棒の他方
の先端に、前記同様、可動電極の電極面に保持し
た鋼球を加圧、溶接する第２ステーシヨン、該第
２ステーシヨンを経て形成したボール付シリンダ
ロツドを、引き続き搬送してこれを前記同様に所
定位置に供給してバツクアツプ及び給電クランプ
で保持し、可動電極で一方の鋼球を押圧して給電
クランプと可動電極間に電流を流し一方の鋼球の
溶接部を焼鈍する第３ステーシヨン、該第３ステ
ーシヨンで焼鈍加工した後、これを再び次の焼鈍
加工位置に搬送してこれをバツクアツプ及び給電
クランプで保持し、給電クランプと可動電極を介
して電流を流し他方の鋼球の溶接部を焼鈍する第
４ステーシヨンとを含むボール付シリンダロツド
の製造方法。 ２ 可動電極の電極面に鋼球を保持する際、電極
面に形成した鋼球受容部のエア吸引力でこれを吸
着、保持する特許請求の範囲第１項記載のボール
付シリンダロツドの製造方法。 ３ 可動電極の電極面に保持した鋼球を、給電ク
ランプと可動電極との間に電流を流して加圧、溶
接する際、給電クランプと可動電極との間に、ス
トツパを介在し可動電極の加圧方向への変位量を
規制する特許請求の範囲第１項又は第２項記載の
ボール付シリンダロツドの製造方法。[Claims] 1. A steel rod supplied from a predetermined position is held by a backup and power supply clamp, and a steel ball held on the electrode surface of a movable electrode is pressed against one tip of the steel bar, and a power supply clamp is applied. and a first station where current is applied between the movable electrode to apply pressure and welding, a steel rod is carried out from the first station, and then a steel ball held on the electrode surface of the movable electrode is placed on the other end of the steel rod as described above. A second station pressurizes and welds the rod, and the cylinder rod with a ball formed through the second station is subsequently transported and supplied to a predetermined position in the same manner as described above, held by a back-up and power supply clamp, and one-sided by a movable electrode. A third station that presses the steel balls and applies a current between the power supply clamp and the movable electrode to anneal the welded part of one of the steel balls.After annealing at the third station, the steel ball is transferred to the next annealing position A method for manufacturing a cylinder rod with balls, which comprises transporting the rod and holding it with a backup and power supply clamp, and a fourth station for annealing the welded part of the other steel ball by passing a current through the power supply clamp and a movable electrode. 2. The method of manufacturing a cylinder rod with a ball according to claim 1, wherein when holding a steel ball on the electrode surface of the movable electrode, the steel ball is attracted and held by the air suction force of a steel ball receiving portion formed on the electrode surface. 3. When pressurizing and welding the steel ball held on the electrode surface of the movable electrode by passing a current between the power supply clamp and the movable electrode, a stopper is interposed between the power supply clamp and the movable electrode to stop the movable electrode. A method of manufacturing a cylinder rod with a ball according to claim 1 or 2, wherein the amount of displacement in the pressurizing direction is restricted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8252387A JPS63248577A (en) | 1987-04-03 | 1987-04-03 | Manufacture of cylinder rod with ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8252387A JPS63248577A (en) | 1987-04-03 | 1987-04-03 | Manufacture of cylinder rod with ball |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63248577A JPS63248577A (en) | 1988-10-14 |
| JPH0565270B2 true JPH0565270B2 (en) | 1993-09-17 |
Family
ID=13776886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8252387A Granted JPS63248577A (en) | 1987-04-03 | 1987-04-03 | Manufacture of cylinder rod with ball |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63248577A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2810327B2 (en) * | 1994-09-07 | 1998-10-15 | 株式会社アマダメトレックス | Spot welding machine |
-
1987
- 1987-04-03 JP JP8252387A patent/JPS63248577A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63248577A (en) | 1988-10-14 |
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