JPH0443779B2 - - Google Patents

Info

Publication number
JPH0443779B2
JPH0443779B2 JP14959887A JP14959887A JPH0443779B2 JP H0443779 B2 JPH0443779 B2 JP H0443779B2 JP 14959887 A JP14959887 A JP 14959887A JP 14959887 A JP14959887 A JP 14959887A JP H0443779 B2 JPH0443779 B2 JP H0443779B2
Authority
JP
Japan
Prior art keywords
locking
spin welding
shaft
main shaft
fixing jig
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
Application number
JP14959887A
Other languages
Japanese (ja)
Other versions
JPS63312821A (en
Inventor
Naoto Sato
Takashi Nakayama
Mitsugi Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Denko KK filed Critical Showa Denko KK
Priority to JP62149598A priority Critical patent/JPS63312821A/en
Publication of JPS63312821A publication Critical patent/JPS63312821A/en
Publication of JPH0443779B2 publication Critical patent/JPH0443779B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0609—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding characterised by the movement of the parts to be joined
    • B29C65/0627—Angular, i.e. torsional
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • B29C66/12464—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered being V-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は、回転と逆回転の微少な往復運動に伴
なつて発生する摩擦熱によつて、熱可塑性樹脂成
形体を溶着するフリクシヨンスピン溶着方法およ
び装置に関する。 〔従来の技術〕 フリクシヨンスピン溶着は、被溶着熱可塑性樹
脂成形体の溶着部を圧接しながら回転し、摩擦熱
によつて摺動面が昇温し、軟化溶融した後に回転
を停止し、さらに圧締しながら放冷して溶着させ
る方法で、種々な形状の円形嵌合部、或いは円環
状の面の溶着に広く使用されている。 〔発明が解決しようとする問題点〕 しかし、従来のフリクシヨンスピン溶着（以下
スピン溶着という）は、回転による摩擦熱を利用
しているため、被溶着成形体の溶着部は円形であ
ることが必須条件となる。したがつて、溶着部の
一部に円弧を描かない部分を有する成形体、例え
ば全自動洗濯機のバランサ等においては、スピン
溶着を採用することが出来ないため熱板溶着が多
く採用されている。 熱板溶着は、第３図ａ，ｂに示すように、テフ
ロンシート１ａによつて被覆された熱板１を、熱
可塑性樹脂成形体（以下成形体という）２，２′
の溶着部に接触させて溶融し、離すと同時に溶着
部を圧接し、放冷溶着するが、発生するバリ３を
隠蔽することが困難であるばかりでなく、高価な
テフロンシート１ａを300〜600回の溶着で交換し
なければならないため、コスト高となる欠点があ
る。これに対し、スピン溶着は、第４図ａ，ｂに
示すように、溶着部のまわりの形状を工夫するこ
とによつて、外側から見えるバリ３を完全に見え
ないようにすることが可能で、このようにデザイ
ンされたものは、バリ３によつて外観不良となる
ことがない。 本発明は上記の事情に鑑み、円弧を描かない部
分を有する成形体溶着部を溶着するスピン溶着方
法および装置を提供することを目的とする。 〔問題点を解決するための手段〕 本発明は、上記の目的を達すべくなされたもの
で、その要旨は、熱可塑性樹脂の２個の成形体の
フリクシヨンスピン溶着方法において、溶着する
一方の成形体の回転と逆回転の微少な往復運動に
よつて摩擦熱を発生させて溶着するフリクシヨン
スピン溶着方法、および熱可塑性樹脂の２個の成
形体のフリクシヨンスピン溶着を行なうフリクシ
ヨンスピン溶着装置であつて、駆動機構によつて
高速回転されるメインシヤフトと、上記メインシ
ヤフトの端部の中心軸線を外れた位置に先端部
が、メインシヤフトの回転に伴つて首ふり自在に
取付けられたロツキングアームと、このロツキン
グアームの基部に中間部が、ロツキングアーム軸
方向に直角にピンによつて回転自在に取付けられ
たロツキングシヤフトと、このロツキングシヤフ
トの先端部に取付けられ、上記成形体の一方を把
持する固定治具と、上記固定治具と対向して設け
られ、前進、後退される、他方の成形体を把持す
る固定治具を有し、ロツキングアームの首ふりに
より、ロツキングシヤフトが回転と逆回転の微少
な往復運動を有するフリクシヨンスピン溶着装置
にある。 〔作用〕 本発明の方法および装置は、回転と逆回転の微
少な往復運動によつて発生した摩擦熱によつて溶
着部を溶融して溶着するので、溶着部が完全な円
形である必要がなく、一部に円弧を描かない部分
が存在してもスピン溶着することが出来る。 〔実施例〕 第１図および第２図は、本発明のスピン溶着を
行なう装置の一実施例を示すもので、第１図は側
面図、第２図は一部断面視した平面図である。 図中符号１１は、装置を駆動するモータであ
る。モータ１１の回転は、クラツチを内蔵したブ
レーキ１２（ETMモータのごとく、ブレーキお
よび回転数可変可能装置を有するモータを使用す
る場合ではブレーキを用いなくともよい。）を介
してメインシヤフト１３に伝達される。このメイ
ンシヤフト１３の端部には、ローテーシヨン部材
１４がメインシヤフト１３の中心軸線１３ａに対
し中心軸線をずらされ、かつ回転方向の移動を阻
止されて取付けられている。このローテーシヨン
部材１４には、回転をスムースにするための潤滑
油が入れられており、メインシヤフト１３とほぼ
同じ方向にえ延在するロツキングアーム１５の先
端がベアリング１４ａを介して首振り自在に取付
けられている。このロツキングアーム１５の基部
１５ａ部分には、ロツキングアーム１５に対して
ほぼ直角に位置して、先端に一方の被溶着成形
体、２を把持する固定治具１６が取付けられたロ
ツキングシヤフト１７が回転自在に設けられてい
る。上記ロツキングアーム１５の基部１５ａは２
つに分岐され、上記ロツキングシヤフト１７の中
間部を挾持するとともに、ロツキングシヤフト１
７の中心軸線１７ａに対して、直角方向のピン１
８によつて回動自在に連結されている。また、上
記固定治具１６に対向して、他方の被溶着成形体
２′を把持する固定治具１９が設けられている。
この固定治具１９には、これを固定治具１６方向
に前進、後退させる、上記ロツキングシヤフト１
７の中心軸線１７ａとほぼ同じ中心軸線を有する
エアーシリンダ２０が設けられている。 なお、２１はメインシヤフト１３を回転自在に
支持するベアリング、２２はベアリング用ボツク
ス、２３はロツキングボツクス、２４はロツキン
グシヤフト１７を回動自在に支持するベアリン
グ、２５は固定治具１８をガイドするスライドシ
ヤフト、２６はエアーシリンダ２０を固定するた
めに、スライドシヤフト２５に固定された固定
板、２７はキヤスター２７ａの取付けられた台車
である。 上記のように構成された装置を用いてスピン溶
着を行なうには、先ず、被溶着成形体、２，２′
をそれぞれ固定治具１６，１９に把持せしめ、エ
アーシリンダ２０を作動して所定の面圧で接触さ
せる。次いでモータ１１を始動するとともにブレ
ーキ１２に内蔵されたクラツチを入れ、回転をメ
インシヤフト１３に伝達する。メインシヤフト１
３の回転により、ロツキングアーム１５の先端は
首振り運動する。この首振り運動によつて、基部
１５ａとピン１８によつて接続されたロツキング
シヤフト１７は、中心軸線１７ａを回転の中心と
した所定の角度の往復運動を行なう。この往復運
動によつて成形体、２，２′の溶着部は摩擦熱に
よつて昇温し、溶融する。溶着部が溶融した時点
で、クラツチを離し、ブレーキ１２を作用させ
て、メインシヤフト１３の回転を停止する。溶融
した溶着部は、エアーシリンダ２０の押圧力を受
けたまま放冷され、相互に溶着される。この一体
化した成形体は、エアーシリンダ２０を作動し、
固定治具１９を後退させることによつて回収され
る。 上記の操作は、押釦によつて始動すれば、公知
の制御システムによつて順次自動的に行なわれ、
効率のよいスピン溶着が出来る。 実施例 １ 上記の装置を用い、ポリプロピレンよりなる相
互に溶着される溶着部を有する成形体を固定治具
１６，１９に取付け、第１表に示す条件でスピン
溶着を行なつた。 [Industrial Application Field] The present invention relates to a friction spin welding method and apparatus for welding thermoplastic resin molded bodies using frictional heat generated due to minute reciprocating motions of rotation and reverse rotation. [Prior art] In friction spin welding, the welded part of a thermoplastic resin molded object to be welded is rotated while being pressed against it, the sliding surface is heated by frictional heat, and after it softens and melts, the rotation is stopped. This is a method of welding by allowing the weld to cool while being further compressed, and is widely used for welding circular fitting parts of various shapes or annular surfaces. [Problems to be solved by the invention] However, since conventional friction spin welding (hereinafter referred to as spin welding) utilizes frictional heat due to rotation, the welded part of the welded molded object may be circular. This is a necessary condition. Therefore, hot plate welding is often used for molded products that have a welded part that does not have a circular arc, such as balancers for fully automatic washing machines, because spin welding cannot be used. . In hot plate welding, as shown in FIGS. 3a and 3b, a hot plate 1 covered with a Teflon sheet 1a is bonded to thermoplastic resin molded bodies (hereinafter referred to as molded bodies) 2, 2'.
The welded part is melted when brought into contact with the welded part, and as soon as the welded part is released, the welded part is pressed and welded by cooling. However, it is not only difficult to hide the burr 3 that occurs, but also the expensive Teflon sheet 1a is Since it must be replaced after every welding, it has the disadvantage of high cost. On the other hand, with spin welding, as shown in Figures 4a and b, by devising the shape around the welded part, it is possible to completely hide the burr 3 visible from the outside. A product designed in this way will not have a poor appearance due to burrs 3. In view of the above circumstances, an object of the present invention is to provide a spin welding method and apparatus for welding a welded part of a molded body having a portion that does not draw an arc. [Means for Solving the Problems] The present invention has been made to achieve the above object, and its gist is that in a friction spin welding method for two molded bodies of thermoplastic resin, one of the molded bodies to be welded is Friction spin welding involves welding by generating frictional heat through minute reciprocating motions of rotation and counter-rotation of molded bodies, and friction spin welding which performs friction spin welding of two thermoplastic resin molded bodies. The device includes a main shaft that is rotated at high speed by a drive mechanism, and a tip end that is attached to an end of the main shaft at a position off the central axis so that it can swing freely as the main shaft rotates. a locking arm, a locking shaft having an intermediate portion rotatably attached to the base of the locking arm by a pin perpendicular to the axial direction of the locking arm; and a locking shaft attached to the tip of the locking shaft; It has a fixing jig for gripping one of the molded bodies, and a fixture for gripping the other molded body, which is provided opposite to the fixture and is moved forward and backward, and the rocking arm swings. This is a friction spin welding device in which the locking shaft has a slight reciprocating motion of rotation and counter-rotation. [Operation] The method and device of the present invention melts and welds the welded part using the frictional heat generated by the minute reciprocating motion of rotation and reverse rotation, so the welded part does not need to be perfectly circular. Spin welding is possible even if there is a part that does not draw an arc. [Example] Figures 1 and 2 show an example of the spin welding apparatus of the present invention, with Figure 1 being a side view and Figure 2 being a partially sectional plan view. . Reference numeral 11 in the figure is a motor that drives the device. The rotation of the motor 11 is transmitted to the main shaft 13 via a brake 12 with a built-in clutch. Ru. A rotation member 14 is attached to the end of the main shaft 13 so that its center axis is offset from the center axis 13a of the main shaft 13 and is prevented from moving in the rotational direction. This rotation member 14 contains lubricating oil for smooth rotation, and the tip of a locking arm 15 that extends in almost the same direction as the main shaft 13 can swing freely via a bearing 14a. installed on. At the base 15a of the locking arm 15, there is a locking shaft, which is located almost perpendicularly to the locking arm 15 and has a fixing jig 16 attached to its tip for gripping one of the molded objects to be welded, 2. 17 is rotatably provided. The base 15a of the locking arm 15 is 2
The locking shaft 17 is branched into two parts, and the locking shaft 1
Pin 1 in a direction perpendicular to the central axis 17a of 7
8, and are rotatably connected. Further, a fixing jig 19 is provided opposite to the fixing jig 16 for gripping the other molded body 2' to be welded.
This fixing jig 19 has the locking shaft 1 that moves it forward and backward in the direction of the fixing jig 16.
An air cylinder 20 having a center axis substantially the same as the center axis 17a of No. 7 is provided. In addition, 21 is a bearing that rotatably supports the main shaft 13, 22 is a bearing box, 23 is a locking box, 24 is a bearing that rotatably supports the locking shaft 17, and 25 is a guide for the fixing jig 18. 26 is a fixing plate fixed to the slide shaft 25 to fix the air cylinder 20, and 27 is a truck to which casters 27a are attached. In order to perform spin welding using the apparatus configured as described above, first, the welded bodies 2, 2'
are gripped by fixing jigs 16 and 19, respectively, and the air cylinder 20 is operated to bring them into contact with each other with a predetermined surface pressure. Next, the motor 11 is started and a clutch built into the brake 12 is engaged to transmit the rotation to the main shaft 13. Main shaft 1
3, the tip of the locking arm 15 swings. Due to this swinging motion, the locking shaft 17 connected to the base 15a by the pin 18 performs a reciprocating motion at a predetermined angle about the center axis 17a. Due to this reciprocating movement, the temperature of the welded parts of the molded bodies 2 and 2' increases due to frictional heat and melts. When the weld is melted, the clutch is released and the brake 12 is applied to stop the rotation of the main shaft 13. The melted welded parts are allowed to cool while being subjected to the pressing force of the air cylinder 20, and are welded together. This integrated molded body operates the air cylinder 20,
It is recovered by retracting the fixing jig 19. The above operations are automatically performed sequentially by a known control system when started by pressing a button.
Efficient spin welding is possible. Example 1 Using the above-mentioned apparatus, molded bodies made of polypropylene having mutually welded parts were attached to fixing jigs 16 and 19, and spin welding was performed under the conditions shown in Table 1.

【表】【table】

〔発明の効果〕〔Effect of the invention〕

以上述べたように、本発明の方法および装置
は、回転方向の僅かな振り幅の往復動によつて発
生する摩擦熱を利用して溶着するので、従来のフ
リクシヨンスピン溶着の長所を保有したまま、一
部に円弧を描かない部分を有する溶着部をスピン
溶着することができ、また、装置は所定の面圧を
保持し、所定の角度の振幅でしかも極めて高い往
復数で摩擦できるので、従来不可能であつた往復
動によるスピン溶着を可能とする優れたものであ
る。 As described above, the method and apparatus of the present invention have the advantages of conventional friction spin welding because they weld using the frictional heat generated by reciprocating motion with a slight amplitude in the rotational direction. It is possible to spin-weld a welded part that has a part that does not draw an arc, and the device can maintain a predetermined surface pressure and perform friction with a predetermined angular amplitude and an extremely high number of reciprocations. This is an excellent product that enables spin welding by reciprocating motion, which was previously impossible.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図は本発明に係るフリクシヨ
ンスピン溶着装置の一実施例を示すもので、第１
図は側面図、第２図は、第１図の−線矢視一
部断面図、第３図ａ，ｂは熱板溶着の説明図で、
第３図ａは溶着部を熱板で溶融する図、第３図ｂ
は、熱板を除去して溶着した図、第４図ａ，ｂは
従来のスピン溶着によりバリを隠蔽するように形
状を工夫した図である。 １……熱板、１ａ……テフロンシート、２，
２′……熱可塑性樹脂成形体（成形体）、３……バ
リ、１１……モータ（駆動機構）、１２……ブレ
ーキ、１３……メインシヤフト、１３ａ……中心
軸線、１４……ローテーシヨン部材、１４ａ……
ベアリング、１５……ロツキングアーム、１５ａ
……基部、１６……固定治具、１７……ロツキン
グシヤフト、１７ａ……中心軸線、１８……ピ
ン、１９……固定治具、２０……エアーシリン
ダ、２１……メインシヤフト用ベアリング、２２
……ベアリング用ボツクス、２３……ロツキング
ボツクス、２４……ロツキングシヤフト用ベアリ
ング、２５……スライドシヤフト、２６……エア
ーシリンダ固定板、２７……台車、２７ａ……キ
ヤスター。 FIGS. 1 and 2 show an embodiment of the friction spin welding apparatus according to the present invention.
The figure is a side view, FIG. 2 is a partial sectional view taken along the - arrow in FIG. 1, and FIGS. 3 a and b are illustrations of hot plate welding.
Figure 3a is a diagram of melting the welded part with a hot plate, Figure 3b
Figure 4 shows welding after removing the hot plate, and Figures 4a and 4b show conventional spin welding with a devised shape to hide burrs. 1...Hot plate, 1a...Teflon sheet, 2,
2'...Thermoplastic resin molded body (molded body), 3...Flash, 11...Motor (drive mechanism), 12...Brake, 13...Main shaft, 13a...Center axis line, 14...Rotation Member, 14a...
Bearing, 15... Locking arm, 15a
... Base, 16 ... Fixing jig, 17 ... Locking shaft, 17a ... Center axis line, 18 ... Pin, 19 ... Fixing jig, 20 ... Air cylinder, 21 ... Bearing for main shaft, 22
... Box for bearing, 23 ... Locking box, 24 ... Bearing for rocking shaft, 25 ... Slide shaft, 26 ... Air cylinder fixing plate, 27 ... Dolly, 27a ... Caster.

Claims (1)

【特許請求の範囲】 １ 熱可塑性樹脂の２個の成形体のフリクシヨン
スピン溶着方法において、溶着する一方の成形体
の回転と逆回転の微少な往復運動によつて摩擦熱
を発生させて溶着することを特徴とするフリクシ
ヨンスピン溶着方法。 ２ 熱可塑性樹脂の２個の成形体のフリクシヨン
スピン溶着を行なうフリクシヨンスピン溶着装置
であつて、駆動機構によつて高速回転されるメイ
ンシヤフト１３と、上記メインシヤフト１３の端
部の中心軸線を外れた位置に先端部が、メインシ
ヤフト１３の回転に伴なつて首ふり自在に取付け
られたロツキングアーム１５と、このロツキング
アーム１５の基部に中間部が、ロツキングアーム
１５の軸方向に直角にピンによつて回転自在に取
付けられたロツキングシヤフト１７と、このロツ
キングシヤフト１７の先端部に取付けられ、上記
成形体の一方を把持する固定治具と、上記固定治
具と対向して設けられ、前進、後退される、他方
の成形体を把持する固定治具とを有し、ロツキン
グアーム１５の首ふりにより、ロツキングシヤフ
ト１７が回転と逆回転の微少な往復運動をするこ
とを特徴としたフリクシヨンスピン溶着装置。[Claims] 1. In a friction spin welding method for two molded bodies of thermoplastic resin, welding is performed by generating frictional heat through minute reciprocating motions of rotation and reverse rotation of one of the molded bodies to be welded. A friction spin welding method characterized by: 2. A friction spin welding device that performs friction spin welding of two molded bodies of thermoplastic resin, including a main shaft 13 that is rotated at high speed by a drive mechanism, and a central axis of the end of the main shaft 13. There is a locking arm 15 whose tip is attached to a position away from the main shaft 13 so as to be able to swing freely as the main shaft 13 rotates, and a middle portion of which is attached to the base of the locking arm 15 in the axial direction of the locking arm 15. a locking shaft 17 rotatably attached by a pin at right angles to the locking shaft 17; a fixing jig attached to the tip of the locking shaft 17 for gripping one of the molded bodies; and a fixing jig facing the fixing jig. The locking shaft 17 is provided with a fixing jig that grips the other molded body and is moved forward and backward, and when the locking arm 15 swings, the locking shaft 17 makes a slight reciprocating movement of rotation and reverse rotation. A friction spin welding device that is characterized by:
JP62149598A 1987-06-16 1987-06-16 Method and apparatus for friction spin-fusing Granted JPS63312821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62149598A JPS63312821A (en) 1987-06-16 1987-06-16 Method and apparatus for friction spin-fusing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62149598A JPS63312821A (en) 1987-06-16 1987-06-16 Method and apparatus for friction spin-fusing

Publications (2)

Publication Number Publication Date
JPS63312821A JPS63312821A (en) 1988-12-21
JPH0443779B2 true JPH0443779B2 (en) 1992-07-17

Family

ID=15478705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62149598A Granted JPS63312821A (en) 1987-06-16 1987-06-16 Method and apparatus for friction spin-fusing

Country Status (1)

Country Link
JP (1) JPS63312821A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101034064B1 (en) 2009-07-28 2011-05-12 이재화 Heat welding apparatus for making float

Also Published As

Publication number Publication date
JPS63312821A (en) 1988-12-21

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