JPH0511941Y2 - - Google Patents
Info
- Publication number
- JPH0511941Y2 JPH0511941Y2 JP2413687U JP2413687U JPH0511941Y2 JP H0511941 Y2 JPH0511941 Y2 JP H0511941Y2 JP 2413687 U JP2413687 U JP 2413687U JP 2413687 U JP2413687 U JP 2413687U JP H0511941 Y2 JPH0511941 Y2 JP H0511941Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- piston
- inner cylinder
- connecting rod
- crankshaft
- 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
- 230000032258 transport Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Automatic Assembly (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、主として小型自動二輪車のエンジン
のクランクシヤフトとピストンとシリンダとを組
合わせるのに使用するエンジンの小組用治具に関
する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an engine subassembly jig used primarily to assemble the crankshaft, piston, and cylinder of the engine of a small motorcycle.
（従来の技術）
従来、エンジンの組立に際しては、コンロツド
を組付けたクランクシヤフトをクランクケースに
組付け、次いでクランクケースから突出するコン
ロツドの小端部にピストンを組付けた後、シリン
ダをその内部にピストンを挿入した状態でクラン
クケースに組付けるようにしており、この場合コ
ンロツドが勝手に振れ動いてこれを自動的に位置
決めすることが困難なため、ピストンやシリンダ
の組付けは手作業で行うを一般としている。(Prior art) Conventionally, when assembling an engine, a crankshaft with a connecting rod attached thereto is assembled into a crankcase, a piston is attached to the small end of the connecting rod protruding from the crankcase, and then a cylinder is installed inside the crankshaft. The piston is inserted into the crankcase before it is assembled into the crankcase.In this case, the connecting rod swings around on its own and it is difficult to position it automatically, so the piston and cylinder are assembled by hand. is generally accepted.
（考案が解決しようとする問題点）
上記の如く手作業でピストンやシリンダの組付
けを行うのでは能率が悪い。この場合、クランク
シヤフトをクランクケースに組付ける前であれ
ば、コンロツドの位置決めが容易なため、予めク
ランクシヤフトとピストンとシリンダとを組合わ
せてエンジンを小組みし、この組立体をクランク
ケースに組付けるようにして、組付作業の自動化
を図ることが考えられており、かかるエンジンの
小組みに適した治具の開発が望まれている。(Problems to be solved by the invention) Assembling pistons and cylinders manually as described above is inefficient. In this case, it is easier to position the connecting rod before assembling the crankshaft to the crankcase, so assemble the engine by assembling the crankshaft, pistons, and cylinders in advance, and then assemble this assembly to the crankcase. It has been considered to automate the assembly work by attaching the engine, and there is a desire to develop a jig suitable for such small assembly of engines.
本考案は、上記要望に適合したエンジンの小組
用治具を提供することをその目的とする。 An object of the present invention is to provide a jig for small assembly of an engine that meets the above requirements.
（問題点を解決するための手段）
本考案は、上記目的を達成すべく、クランクシ
ヤフトとピストンとシリンダとを組合わせるため
の治具であつて、治具ベースに、周囲一側面を切
欠いた外筒と、該外筒の切欠面側の外側部にクラ
ンクシヤフトを位置決め支持する支持台と、該切
欠面の底部近傍にクランクシヤフトに組付けられ
るコンロツドの大端部に下方から当接するストツ
パとを立設すると共に、該外筒内に、ピストンを
所定深さに挿入可能で且つ上端にシリンダのスカ
ート部を当接可能な内筒を上方のセツト位置と下
方の押込み位置とに上下動自在に嵌挿し、該内筒
にピストンのピン穴に臨むピストンピンの組付穴
を形成すると共に、該外筒の切欠面に合致する該
内筒の一側面を切欠いて、該内筒の切欠面の底部
に、該内筒のセツト位置でコンロツドに当接して
コンロツドをその小端部がピストンのピン穴の孔
軸に合致するように位置決めする受座を形成した
ことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention is a jig for assembling a crankshaft, a piston, and a cylinder. An outer cylinder, a support base for positioning and supporting the crankshaft on the outer side of the cutout side of the outer cylinder, and a stopper that contacts from below the large end of the connecting rod that is assembled to the crankshaft near the bottom of the cutout side. The inner cylinder is vertically movable between an upper set position and a lower push-in position, into which the piston can be inserted to a predetermined depth and the skirt portion of the cylinder can be brought into contact with the upper end. A piston pin assembly hole is formed in the inner cylinder facing the pin hole of the piston, and one side of the inner cylinder that matches the notch surface of the outer cylinder is cut out to form a notch surface of the inner cylinder. The piston is characterized in that a seat is formed on the bottom of the piston to abut the conrod at the set position of the inner cylinder and position the conrod so that its small end is aligned with the axis of the pin hole of the piston.
（作用）
エンジンの小組みに際しては、内筒をセツト位
置に上昇させた状態でクランクシヤフトを支持台
に載置し、この際コンロツドがその中間部におい
て受座と、大端部においてストツパとに当接する
ようにし、次いで内筒に上方からピストンを挿入
する。これによれば、ストツパと受座とで２点支
持されて定位置に位置決めされるコンロツドの小
端部にピストンのピン穴の孔軸が合致し、かくて
内筒の組付穴を介してピストンピンをピン穴に挿
入すれば、該ピンはコンロツドの小端部を貫通し
て、ピストンとコンロツドとが連結される。(Function) When assembling an engine, place the crankshaft on a support stand with the inner cylinder raised to the set position, and at this time, the connecting rod is connected to the seat at the middle part and the stopper at the large end. Then, insert the piston into the inner cylinder from above. According to this, the hole axis of the pin hole of the piston matches the small end of the connecting rod, which is supported at two points by the stopper and the seat and positioned in a fixed position, and thus the piston is inserted through the assembly hole of the inner cylinder. When the piston pin is inserted into the pin hole, the pin passes through the small end of the connecting rod, and the piston and connecting rod are connected.
次いで、シリンダをそのスカート部を内筒の上
端に当接させた状態で下降させるが、これによれ
ば、内筒が押込み位置に押下げられ、内筒に収納
されていたピストンがシリンダ内に挿入され、ク
ランクシヤフトとピストンとシリンダとが組合わ
された状態となる。 Next, the cylinder is lowered with its skirt portion in contact with the upper end of the inner cylinder. According to this, the inner cylinder is pushed down to the pushed-in position, and the piston housed in the inner cylinder is moved into the cylinder. Once inserted, the crankshaft, piston, and cylinder are assembled.
（実施例）
第１図乃至第３図を参照して、１は治具ベース
を示し、該治具ベース１は組立ラインに沿つて移
動する搬送パレツト２に対しピン２ａとピン穴１
ａとで位置決めされてクランプ部材２ｂにより固
定されるものとし、該治具ベース１に、周囲一側
面を切欠いた外筒３を一体に立設する共に、該外
筒３の切欠面（以下切欠面を前面として記述す
る）側の外側部即ち該外筒３の前方に位置する治
具ベース１の部分に、コンロツドｂの大端部b1を
軸支するクランクウエブa1の両側のジヤーナル部
に係合してクランクシヤフトａを位置決め支持す
る、左右１対のＶ字状の支持台４，４を立設し、
更に該支持台４，４の中間部後方にコンロツドｂ
の大端部b1に下方から当接するストツパ５を立設
した。(Embodiment) Referring to FIGS. 1 to 3, reference numeral 1 indicates a jig base, and the jig base 1 has pins 2a and pin holes 1 for a conveyor pallet 2 moving along an assembly line.
a and fixed by a clamp member 2b, and an outer cylinder 3 with one side of the circumference cut out is integrally installed on the jig base 1, and the cut surface of the outer cylinder 3 (hereinafter referred to as notch The journal portions on both sides of the crank web a 1 that pivotally support the large end b 1 of the connecting rod b are attached to the outside portion of the jig base 1 located in front of the outer cylinder 3 (the surface is described as the front surface), that is, the portion of the jig base 1 located in front of the outer cylinder 3. A pair of left and right V-shaped support stands 4, 4 are erected to engage with and position and support the crankshaft a,
Further, a connecting rod b is provided at the rear of the intermediate portion of the support stands 4, 4.
A stopper 5 is provided upright to abut the large end b1 from below.
該外筒３内には、ピストンｃを所定深さに挿入
可能で且つ上端にシリンダｄのスカート部d1を当
接可能な内筒６を上下動自在に嵌挿し、組立ライ
ン上の所定の組付ステーシヨンに治具ベース１と
搬送パレツト２とに形成した透孔を通して内筒６
の底面のノツクピン７に当接する図示しない押上
げシリンダを垂設し、該シリンダにより該内筒６
を下方の押込み位置から上方のセツト位置に押上
げるようにした。尚、内筒６はセツト位置への上
昇で外筒３の上部に軽圧入されて該位置に保持さ
れるようにする。 An inner cylinder 6, into which the piston c can be inserted to a predetermined depth and whose upper end can abut the skirt part d1 of the cylinder d, is fitted into the outer cylinder 3 so as to be movable up and down. The inner cylinder 6 is inserted into the assembly station through the through holes formed in the jig base 1 and the transport pallet 2.
A push-up cylinder (not shown) that comes into contact with the knock pin 7 on the bottom surface of the inner cylinder 6 is installed vertically, and the cylinder lifts the inner cylinder 6.
is pushed up from the lower push-in position to the upper set position. Incidentally, when the inner cylinder 6 is raised to the set position, it is lightly press-fitted into the upper part of the outer cylinder 3 and held at this position.
又、該内筒６には、その側面にピストンｃのピ
ン穴c1に臨むピストンピンの組付穴８を形成する
共に、その前面を切欠いて、この切欠面の底部に
コンロツドｂに当接する斜状の凹欠部から成る受
座９を形成するものとし、該内筒６をセツト位置
に上昇させたとき、コンロツドｂが該受座９と前
記ストツパ５とで定位置に位置決めされて、コン
ロツドｂの小端部b2が内筒６に挿入するピストン
ｃのピン穴c1の孔軸に合致されるようにした。 In addition, the inner cylinder 6 has a piston pin assembly hole 8 formed on its side face facing the pin hole c1 of the piston c, and has a notch in its front surface, and the bottom of this notch surface abuts on the connecting rod b. A seat 9 consisting of a diagonal recessed part is formed, and when the inner cylinder 6 is raised to the set position, the connecting rod b is positioned at a fixed position by the seat 9 and the stopper 5, The small end b2 of the connecting rod b is aligned with the hole axis of the pin hole c1 of the piston c inserted into the inner cylinder 6.
又、外筒３の上端に、シリンダｄの４隅に形成
する通しボルトの挿通孔に嵌合する位置決めピン
１０を左右各側に夫々前後１対に立設し、ここで
一側（第２図で右側）の位置決めピン１０，１０
は長さを短くして、シリンダｄの一側の挿通孔に
シリンダヘツドの上方から通しボルトｅ，ｅを落
し込めるようにした。 Further, at the upper end of the outer cylinder 3, a pair of positioning pins 10, which fit into the through-bolt insertion holes formed at the four corners of the cylinder d, are provided upright on each side, one on the front and one on the left and right, respectively. Positioning pins 10, 10 (on the right side in the figure)
The length is shortened so that the through bolts e can be inserted into the insertion holes on one side of the cylinder d from above the cylinder head.
図面で１１は治具ベース１に取付けた機種判別
用のフラグピンを示す。 In the drawing, reference numeral 11 indicates a flag pin attached to the jig base 1 for identifying the model.
次に上記の如く構成された治具を用いてのエン
ジンの小組み作業手順について説明する。 Next, a procedure for subassembling an engine using the jig constructed as described above will be explained.
先ず、組立ライン上のクランクシヤフトセツト
ステーシヨンにおいて、支持台４，４に予めコン
ロツドｂを連結したクランクシヤフトａをコンロ
ツドｂの大端部b1にストツパ５に乗るように載置
し、次いで搬送パレツト２をピストン組付ステー
シヨンに搬送して定位置停止させた後、上記の如
く押上げシリンダにより内筒６をセツト位置に上
昇させ、この状態で図示しないロボツトによりピ
ストンｃを内筒６に上方から挿入すると共に、内
筒６に形成した組付穴８を通してピストンｃのピ
ン穴c1にピストンピンを挿入する。この場合、コ
ンロツドｂは前記ストツパ５と内筒６に形成した
受座９とにより小端部b2がピン穴c1の孔軸に合致
するように位置決め支持されているから、ピスト
ンピンは小端部b2に貫通し、コンロツドｂとピス
トンｃとの組付けを確実に行い得られる。 First, at the crankshaft set station on the assembly line, the crankshaft a, to which the connecting rod b has been connected in advance to the supports 4, 4, is placed on the large end b1 of the connecting rod b so that it rests on the stopper 5, and then the conveying pallet is placed. After transporting the piston c to the piston assembly station and stopping it at a fixed position, the inner cylinder 6 is raised to the set position by the push-up cylinder as described above, and in this state, the piston c is inserted into the inner cylinder 6 from above by a robot (not shown). At the same time, a piston pin is inserted into the pin hole c1 of the piston c through the assembly hole 8 formed in the inner cylinder 6. In this case, since the connecting rod b is positioned and supported by the stopper 5 and the seat 9 formed in the inner cylinder 6 so that the small end b2 matches the hole axis of the pin hole c1 , the piston pin is The connecting rod b and the piston c can be reliably assembled by penetrating the end b2 .
次いで、押圧シリンダを下げて搬送パレツト２
をシリンダ組付ステーシヨンに搬送した後、第３
図示の如き把持ツール１２を取付けたロボツトに
よりシリンダｄを内筒６の直上位置に搬送して下
降させる。これによれば、シリンダｄのスカート
部d1が内筒６の上端に当接して内筒６が押込み位
置に押下げられ、一方ピストンｃはコンロツドｂ
に連結されてその下動を阻止されるため、シリン
ダｄの下降により第４図示の如くピストンｃがシ
リンダｄ内に挿入され、次いで別のロボツトによ
りシリンダヘツドをシリンダｄ上に載置する。こ
の際、シリンダヘツドの一側のボルト挿通穴に通
しボルトｅ，ｅを落し込む。 Next, lower the pressure cylinder and transport pallet 2.
After transporting the cylinder to the cylinder assembly station, the third
A robot equipped with a gripping tool 12 as shown in the figure transports the cylinder d to a position directly above the inner cylinder 6 and lowers it. According to this, the skirt portion d1 of the cylinder d comes into contact with the upper end of the inner cylinder 6, and the inner cylinder 6 is pushed down to the push-in position, while the piston c is pressed against the connecting rod b.
As the cylinder d is lowered, the piston c is inserted into the cylinder d as shown in the fourth figure, and then another robot places the cylinder head on the cylinder d. At this time, drop the through bolts e and e into the bolt insertion holes on one side of the cylinder head.
以上でエンジンの小組みを完了し、次に搬送パ
レツト２を払出しステーシヨンに搬送して、シリ
ンダｄとクランクシヤフトａとの把持部材を有す
る把持ツールを取付けたロボツトによりエンジン
組立体を治具から取外し、該把持ツールに該組立
体を把持させた状態でクランクケースの一側の半
割ケースの軸支壁にクランクシヤフトの一側のジ
ヤーナル部を挿入すると共に、該ケースの上面に
シリンダｄを通しボルトｅ，ｅにより締付け、そ
の後クランクケースの他側の半割ケースの組付け
と、該ケースへのシリンダｄの締付けとを行う。 This completes the subassembly of the engine, and then the transport pallet 2 is transported to the unloading station, and the engine assembly is removed from the jig by a robot equipped with a gripping tool that has gripping members for the cylinder d and the crankshaft a. , with the assembly gripped by the gripping tool, insert the journal part on one side of the crankshaft into the shaft support wall of the half case on one side of the crankcase, and pass the cylinder d through the upper surface of the case. Tighten bolts e and e, then assemble the half case on the other side of the crankcase and tighten the cylinder d to the case.
（考案の効果）
以上の如く本考案によれば、支持台へのクラン
クシヤフトの載置と、内筒へのピストンの挿入及
びピストンピンの挿入と、シリンダの内筒上方か
らの下降とで、クランクシヤフトとピストンとシ
リンダとの小組み作業を簡単且つ確実に行い得ら
れ、組立作業の自動化が容易になる効果を有す
る。(Effects of the invention) As described above, according to the invention, by placing the crankshaft on the support base, inserting the piston and piston pin into the inner cylinder, and lowering the cylinder from above the inner cylinder, The small assembly work of the crankshaft, piston, and cylinder can be easily and reliably performed, and the assembly work can be easily automated.
第１図は本考案治具の１例の平面図、第２図は
第１図の−線で截断した内筒押込み状態の截
断正面図、第３図は第１図の−線で截断した
内筒押上げ状態の截断側面図、第４図はシリンダ
組付状態の截断側面図である。
１……治具ベース、３……外筒、４……支持
台、５……ストツパ、６……内筒、８……組付
穴、９……受座、ａ……クランクシヤフト、ｂ…
…コンロツド、b1……大端部、b2……小端部、ｃ
……ピストン、c1……ピン穴、ｄ……シリンダ。
Fig. 1 is a plan view of an example of the jig of the present invention, Fig. 2 is a cutaway front view taken along the - line in Fig. 1 with the inner cylinder pushed in, and Fig. 3 is a cutaway cut along the - line in Fig. 1. FIG. 4 is a cutaway side view of the inner cylinder in the pushed-up state, and FIG. 4 is a cutaway side view of the cylinder in the assembled state. 1... Jig base, 3... Outer cylinder, 4... Support stand, 5... Stopper, 6... Inner cylinder, 8... Assembly hole, 9... Seat, a... Crankshaft, b …
...conrod, b 1 ... large end, b 2 ... small end, c
...piston, c 1 ... pin hole, d ... cylinder.
Claims (1)
合わせるための治具であつて、治具ベースに、周
囲一側面を切欠いた外筒と、該外筒の切欠面側の
外側部にクランクシヤフトを位置決め支持する支
持台と、該切欠面の底部近傍にクランクシヤフト
に組付けられるコンロツドの大端部に下方から当
接するストツパとを立設すると共に、該外筒内
に、ピストンを所定深さに挿入可能で且つ上端に
シリンダのスカート部を当接可能な内筒を上方の
セツト位置と下方の押込み位置とに上下動自在に
嵌挿し、該内筒にピストンのピン穴に臨むピスト
ンピンの組付穴を形成すると共に、該外筒の切欠
面に合致する該内筒の一側面を切欠いて、該内筒
の切欠面の底部に、該内筒のセツト位置でコンロ
ツドに当接してコンロツドをその小端部がピスト
ンのピン穴の孔軸に合致するように位置決めする
受座を形成したことを特徴とするエンジンの小組
用治具。 A jig for assembling a crankshaft, a piston, and a cylinder, the jig having an outer cylinder with a cutout on one side of the periphery, and a crankshaft positioned and supported on the outside of the cutout side of the outer cylinder. A support stand and a stopper that abuts from below the large end of the connecting rod to be assembled to the crankshaft are erected near the bottom of the notched surface, and the piston can be inserted into the outer cylinder to a predetermined depth. In addition, an inner cylinder that can contact the skirt portion of the cylinder at the upper end is fitted into an upper set position and a lower push position so as to be movable up and down, and a piston pin assembly hole facing the pin hole of the piston is provided in the inner cylinder. At the same time, one side of the inner cylinder that matches the notched surface of the outer cylinder is notched, and the connecting rod is attached to the bottom of the notched surface of the inner cylinder by contacting the connecting rod at the set position of the inner cylinder and attaching the connecting rod to its small end. 1. A jig for small assembly of an engine, characterized in that a catch is formed for positioning the part so as to match the hole axis of a pin hole of a piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2413687U JPH0511941Y2 (en) | 1987-02-23 | 1987-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2413687U JPH0511941Y2 (en) | 1987-02-23 | 1987-02-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63133932U JPS63133932U (en) | 1988-09-01 |
| JPH0511941Y2 true JPH0511941Y2 (en) | 1993-03-25 |
Family
ID=30823093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2413687U Expired - Lifetime JPH0511941Y2 (en) | 1987-02-23 | 1987-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0511941Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2747828B2 (en) * | 1988-10-26 | 1998-05-06 | マツダ株式会社 | Work transfer device and work transfer method for assembly line |
| JPH0723716Y2 (en) * | 1989-06-16 | 1995-05-31 | 株式会社ダイフク | Pallet for transporting test engine |
-
1987
- 1987-02-23 JP JP2413687U patent/JPH0511941Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63133932U (en) | 1988-09-01 |
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