JPS6073167A - Method of manufacturing cam shaft - Google Patents
Method of manufacturing cam shaftInfo
- Publication number
- JPS6073167A JPS6073167A JP58178188A JP17818883A JPS6073167A JP S6073167 A JPS6073167 A JP S6073167A JP 58178188 A JP58178188 A JP 58178188A JP 17818883 A JP17818883 A JP 17818883A JP S6073167 A JPS6073167 A JP S6073167A
- Authority
- JP
- Japan
- Prior art keywords
- camshaft
- metal wire
- manufacturing
- parts
- liquid phase
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
- F16H53/025—Single-track cams for single-revolution cycles; Camshafts with such cams characterised by their construction, e.g. assembling or manufacturing features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
- Gears, Cams (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、カム軸を鋼製の中実軸もしくは中空軸とし、
その外側に別途製作したカムaプ、ジャーナル、ギア等
の組伺部品を組付け、ロー伺又は液相焼結により一体化
して製造する組立てタイプの力l、シャフトの製遣方/
):に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a camshaft having a solid shaft or a hollow shaft made of steel;
Assembling parts such as cams, journals, gears, etc. that are separately manufactured are assembled on the outside of the shaft, and the assembly type is manufactured by rolling or liquid phase sintering, and how to manufacture the shaft.
): regarding.
[従来技術]
従来、この種の組旧部品をロー4=J又は液相焼結によ
ってカム軸に接合する場合に、カム軸の軸回り方向の位
置決めをするために、カム軸の列周面に1又は2以上の
凹溝を長手方向に形成し、一方組伺部品の嵌合孔の内周
面には前記凹溝が嵌入する突起を所望の位置に形成して
いるが、位置決めの精度を向」−するためには、門構及
び突起の形状、・j法、位置等を正確に製作しなけれは
ならず、大きな製造F数を必要とした。[Prior Art] Conventionally, when joining this type of assembled old parts to a camshaft by Ro 4=J or liquid phase sintering, the row peripheral surface of the camshaft was used to position the camshaft in the circumferential direction. One or more grooves are formed in the longitudinal direction, and protrusions into which the grooves are fitted are formed at desired positions on the inner circumferential surface of the fitting hole of the assembly component, but the accuracy of positioning is limited. In order to achieve this, the shape, direction, position, etc. of the gate structure and protrusion had to be precisely manufactured, which required a large number of manufacturing units.
また、この種の組伺部品を液相焼結によってカム軸に接
合する場合には、組旧部品のカム軸の長ず、方向の相伺
位置が部品毎にバラツキを生じ1組1・jスj法が揃わ
ない欠点があった。In addition, when this type of assembled parts are joined to the camshaft by liquid phase sintering, the length and direction of the camshafts of the old and assembled parts vary from part to part, resulting in variations in the length and direction of the camshafts. There was a drawback that the SJ methods were not aligned.
本発明名らは、この原因を究明すべく鋭7a、研究を重
ねた結果、組付刈法の不揃いは次の原因に基づくことを
解明した。すなわち、第1図及び第2図に示すように焼
結製の組伺部品であるカムロブlOをカム軸11に嵌合
して組付け、これを焼結炉に入れて液相焼結を行うと、
カムロブ10はカム軸1.1に対して最初に接合を開始
した位置を中心に収IAdし、しかもこの位置は力1、
ロブ1O4l上に・足でないため、焼結後の組付部品の
各寸法が揃わないことが明らかとなった。As a result of repeated research to investigate the cause of this, the inventors of the present invention have discovered that the unevenness of the assembled mowing method is due to the following causes. That is, as shown in FIGS. 1 and 2, the cam lobe lO, which is a sintered assembly part, is fitted onto the camshaft 11 and assembled, and this is placed in a sintering furnace and subjected to liquid phase sintering. and,
The cam lobe 10 is centered around the position where it first starts joining with respect to the camshaft 1.1, and this position is subject to a force of 1,
It became clear that the dimensions of the assembled parts after sintering were not the same because the legs were not on the lobes 1O4L.
例えば、カムロブlOをカム軸11に組付けたとき、第
3図に示すようにカドロブlOが図のA点で最初にカム
軸11に接合すれば、液相焼結後には第4図の想像線で
示すようにこのA点を中心にカムロブlOが収縮し、ま
たカムロブ10が第3図のB点で最初にカム軸11に接
合すれば、液相焼結後には第5図の想像線で示すように
B点を中心にカムロブ10が収縮する。1−6記収縮現
象はカムロブに限らず、他の焼結製のジャーナル、キア
等の組伺部品にも同様に生じる。このため組付部品の液
相焼結後のカム軸に対する位置は最初の接合点により変
化し、一定しない。For example, when the cam lobe lO is assembled to the camshaft 11, if the cam lobe lO is first joined to the camshaft 11 at point A in the figure as shown in Fig. 3, then after liquid phase sintering, the image shown in Fig. 4 If the cam lobe 10 contracts around this point A as shown by the line, and if the cam lobe 10 is first joined to the camshaft 11 at point B in FIG. 3, then after liquid phase sintering, the imaginary line in FIG. As shown, the cam lobe 10 contracts around point B. The shrinkage phenomenon described in items 1-6 is not limited to the cam lobe, but also occurs in other sintered journals, gear parts, etc. as well. Therefore, the position of the assembled parts relative to the camshaft after liquid phase sintering changes depending on the initial joining point and is not constant.
本発明者らは、組付部品のカム軸の軸回り方向の位置決
め手段として、突起の代わり凹溝を形成し、2つの門構
に金属線材を挿入するようにすれは、製造」:数が小さ
くて済むことに着目し、本発明を完成するに至った。The present inventors formed a concave groove instead of a protrusion as a means for positioning the camshaft of the assembly part in the periaxial direction, and inserted a metal wire into the two gate structures. The present invention was completed by focusing on the fact that it can be made small.
また、焼ム11製組伺部品のカム軸の長手方向の位置決
めr一段として、組付部品の」−述した収縮特性を利用
して、組(=J部品の融点より低融点の金属線材を組(
−1部品の液相焼結時の接合開始材として2つの凹溝内
に挿入して、組イ・J部品の接合起点を積極「1!Jに
作り出しておけば、上記欠点が解消されることに着目し
、本発明を完成するに至った。In addition, as a first step in the longitudinal positioning of the camshaft of the assembled parts made by Yakimu 11, a metal wire rod with a melting point lower than the melting point of the assembled parts (= set(
-If you insert it into the two grooves as a joining starting material during liquid phase sintering of 1 part and proactively create the joining starting point for parts A and J at ``1!J'', the above drawbacks will be resolved. By paying attention to this fact, we have completed the present invention.
[発明の目的]
本発明の第一・の目的は、カムロブ、ジャーナル、キア
等の組伺部品を小さい製造上数で簡便にカム軸の軸回り
方向の所定の位置に接合し畳る力l・ソヤフI・の製造
方法を提イルすることにあり、また第、のI+的は、焼
結製組付部品のカム軸の長手方向の組伺・」法を極めて
精度よ<=−扛に拵Jえることができる力トシャフI・
の製造方法を提供することにある。[Objective of the Invention] The first object of the present invention is to easily join and fold assembly parts such as cam lobes, journals, and gears at predetermined positions around the camshaft with a small number of manufacturing steps.・The purpose of the first I+ is to propose a manufacturing method for the sintered assembly parts in the longitudinal direction of the camshaft. The power that can be obtained is
The purpose of this invention is to provide a method for manufacturing the same.
[発明の構成]
本発明によるカムシャフトの製造方法は、カム軸の外周
面の1箇所に長手方向の凹溝を形成し、一方前記カム軸
に嵌合する組伺部品の嵌合孔の内周面に前記組伺部品を
前記カム軸に対して所定の位置に配置したとき前記凹溝
に対向する門構を形成し、前記両凹溝が互い対向するよ
うに前記組伺部品を前記カム軸に嵌合して配置した後に
、前記+I14凹堝内に金属線材を挿入して前記組伺部
品を固足し前記カム軸に接合することを特徴とする。[Structure of the Invention] A method for manufacturing a camshaft according to the present invention includes forming a longitudinal groove at one location on the outer circumferential surface of the camshaft, and forming a groove in the fitting hole of the assembly component to be fitted to the camshaft. A gate structure is formed on the circumferential surface of the assembly part to face the groove when the assembly part is placed at a predetermined position with respect to the camshaft, and the assembly part is connected to the cam so that both the grooves face each other. After being fitted and arranged on the shaft, a metal wire is inserted into the +I14 recess to secure the assembled parts and join them to the camshaft.
このときの組4=J部品のカムも11に対する接合は、
ロー伺又は液相焼結により行うことが可能で、液相焼結
で行う場合には組伺部品を焼結製部材とし、かつ上記金
属線材を組伺部品の液相発生温度より低い温度で液相を
生しる金属で構成すれば、金属線材が接合開始材となり
、組(=j部品のカム軸の@11回り方向の組4−J位
置の所定の位置に対するズレがなくなり、望ましい。At this time, the connection of the group 4=J parts to the cam 11 is as follows:
It can be carried out by rolling or liquid phase sintering. In the case of liquid phase sintering, the assembled parts are made of sintered parts, and the metal wire is heated at a temperature lower than the liquid phase generation temperature of the assembled parts. If it is made of a metal that generates a liquid phase, the metal wire becomes the joining starting material, and there is no deviation of the position of group 4-J in the direction around @11 of the camshaft of group (=j) from the predetermined position, which is desirable.
特に、この低融点の金属線材に凸部を形成し、この金属
線材を両凹溝内に挿入したときに、両凹溝に1個の凸部
だけが接触するようにすれば、接合起点を所望の位置に
任意に設定できてよい。In particular, if a convex part is formed on this low-melting point metal wire so that when the metal wire is inserted into the double-concave groove, only one convex part comes into contact with the double-concave groove, the welding starting point can be It may be arbitrarily set at a desired position.
また、組付部品が複数の部品からなる場合には、低融点
の金MY線材は部品毎に各別に挿入される短刀にしても
よいし、或いは複数の部品に共通に1Φ人される瓦材に
してもよい。長々にした場合には、各部品の所定の取イ
・j間隔に相応して凸部を%71(品47)に形成すれ
は、複数の組付部品の組(=j寸法か一括して揃うため
望ましい。In addition, when the assembled parts consist of multiple parts, the low melting point gold MY wire may be used as a short sword inserted into each part separately, or as a tile material that is commonly inserted into multiple parts with a diameter of 1Φ. You can also do this. If the length is long, it is necessary to form a convex portion of %71 (item 47) in accordance with the predetermined spacing of each part (= j dimension or batch). It is desirable to have all the necessary items.
[実施例] 次に本発明の実施例を図面に基づいて詳しく説明する。[Example] Next, embodiments of the present invention will be described in detail based on the drawings.
第6図及び第7図は本発明第一・実施例カムシャフトの
製造方法におけるカムロブとカム軸の接合曲げ11図で
ある。本実施例の特徴あるところは、力l−輔11の外
周面のl箇所に長r方向の凹溝12を形成し、カム軸1
1に嵌合するカムロブ10の嵌合孔14の内周面に、カ
ドロブ10をカム軸11に対して所定の位置に配置した
とき凹溝12に対向する凹溝15を形成して、2つの凹
溝12.15が互い対向するようにカムロブIOをカム
軸11に嵌合して配置した後に、両凹溝12.15内に
金属線材16を挿入してカムロブ10を固定しカム軸1
1に接合する点にある。FIGS. 6 and 7 are 11 views of the joint bending of a cam lobe and a camshaft in the method of manufacturing a camshaft according to the first embodiment of the present invention. The characteristic feature of this embodiment is that a concave groove 12 in the longitudinal direction is formed at a location l on the outer circumferential surface of the camshaft 11.
A groove 15 is formed on the inner circumferential surface of the fitting hole 14 of the cam lobe 10 to be fitted into the cam shaft 1, and a groove 15 is formed to face the groove 12 when the cam lobe 10 is placed at a predetermined position with respect to the camshaft 11. After fitting and arranging the cam lobe IO on the camshaft 11 so that the grooves 12.15 face each other, the metal wire 16 is inserted into both grooves 12.15 to fix the cam lobe 10, and the camshaft 1
It is at the point where it joins 1.
ここで、凹溝12及び15の各断面形状は、第8図に示
すような四角形の組合せでも、第9図に示すような三角
形の組合せでもよい。また金属線材16の断面形状は、
両凹溝12、I5に同時に接触する形状であれば、2つ
の凹溝12.15に相応した四角形(第8図)でも、ま
た凹溝12.15の形状に非類似の円形(第9図)であ
ってもよい。Here, the cross-sectional shape of each of the grooves 12 and 15 may be a rectangular combination as shown in FIG. 8 or a triangular combination as shown in FIG. 9. Moreover, the cross-sectional shape of the metal wire 16 is
As long as the shape is in contact with both grooves 12 and I5 at the same time, it may be a square corresponding to the two grooves 12.15 (Fig. 8), or a circular shape dissimilar to the shape of the groove 12.15 (Fig. 9). ).
このような構成のカムロブlOとカム軸11との接合は
、ロー付又は液相焼結により行われる。The cam lobe lO having such a configuration and the camshaft 11 are joined by brazing or liquid phase sintering.
ローイ・jによる場合は、カムロブ10はローイ=l−
ff能の部材で構成され、液相焼結による場合は、カム
ロア’IOは焼結製部材で構成される。According to Loi j, the cam lobe 10 is Loi = l-
If liquid phase sintering is used, the cam lower IO is made of a sintered member.
この製造方法は、凹溝12.15の形状、=J法等を従
来の突起と凹溝のように厳雀な精度で製造する必要がな
く、しかもカムロブlOを力1、軸11のL+ r〜方
向の所定の位lまで嵌入した後に、凹溝15を凹溝12
に対向させ両凹溝内に金属線材16を挿入するだけで、
力l・ロブ10の組付けを迅速に行うことができる。This manufacturing method does not require the shape of the groove 12.15, =J method, etc. to be manufactured with strict precision as in the case of conventional protrusions and grooves.Moreover, the cam lobe lO is controlled by a force of 1, and the shaft 11 by L+r. After fitting to a predetermined position l in the ~ direction, the groove 15 is inserted into the groove 12.
Simply insert the metal wire 16 into the double concave groove facing the
Assembling of the force L/lob 10 can be performed quickly.
第10図は本発明第二実施例カムシャフトの製造方法に
おけるカムロブとカム軸の接合縦断面図である。本実施
例の特徴あるところは、カムロブ10とカム軸11との
接合を液相焼結により行い、か一つ金属線材16をカム
ロブ10の液相発生温1隻より低い1111日隻で液相
を生じる金属、例えは銅又は?11合金、アルミ又はア
ルミ合金、鉛又は鉛合金、錫又は錫合金、ビスマス又は
ビスマス合金、アンチモン又はアンチモン合金、l亜鉛
又は亜鉛合金A)で構成し、更に金属線材16を端部(
この例では)、端)に凸部17をソ11えた短片に形成
した点にある。なお、この凸部17は金属線材16を両
1111溝12.15内に挿入したどきに、嵌合孔14
の中・しに位置し、かつ両凹溝に凸部17だけか接触す
るくJ法に形成されている。FIG. 10 is a longitudinal sectional view of a cam lobe and a camshaft joined together in a method of manufacturing a camshaft according to a second embodiment of the present invention. The characteristic feature of this embodiment is that the cam lobe 10 and the camshaft 11 are joined by liquid phase sintering, and one of the metal wires 16 is heated to a liquid phase temperature of 1111 days, which is lower than the liquid phase generation temperature of the cam lobe 10. The metal that produces it, for example copper or? 11 alloy, aluminum or aluminum alloy, lead or lead alloy, tin or tin alloy, bismuth or bismuth alloy, antimony or antimony alloy, zinc or zinc alloy A), and furthermore, the metal wire 16 is
In this example, it is formed into a short piece with a convex portion 17 at the end. Note that this convex portion 17 is formed in the fitting hole 14 when the metal wire 16 is inserted into both 1111 grooves 12.15.
It is located in the middle of the groove and is formed in a J-shape so that only the convex portion 17 contacts both grooves.
このような構成のカムロブlOをカム軸11に嵌合し、
カムロブlOの中心位置を力11軸11の所定の位置に
合致させた状態で嵌合孔14の一端(この例では左端)
から両凹溝12.15内に金属線材16を挿入した後で
、液相焼結すれば、焼結時に最初に低融点の金属線材1
6の凸部17が溶融するため、この嵌合孔12の中心位
置を基準にしてカムロブ10が収縮する。これによりカ
ムロブlOの組付位置は常に変らず、カムロブ10が複
数個カム軸11に組付けられる場合には、各カムロブの
組イl□ =J法は=一様になる。The cam lobe lO having such a configuration is fitted onto the camshaft 11,
With the center position of the cam lobe lO aligned with the predetermined position of the force axis 11, one end of the fitting hole 14 (in this example, the left end)
If liquid phase sintering is performed after inserting the metal wire 16 into the double concave grooves 12.15, the metal wire 1 with a low melting point will be
Since the convex portion 17 of 6 melts, the cam lobe 10 contracts with respect to the center position of the fitting hole 12. As a result, the assembly position of the cam lobe lO does not change at all times, and when a plurality of cam lobes 10 are assembled to the camshaft 11, the assembly position of each cam lobe l□=J method becomes equal.
なお、第11図に示すように金属線材16の右端にも凸
部18を設ければ、凸部18は凹溝12.15に挿入さ
れる金属線材16のストッパとなり、凸部17の位置を
精度よく決めることができる。Note that if a convex portion 18 is also provided at the right end of the metal wire 16 as shown in FIG. 11, the convex portion 18 will act as a stopper for the metal wire 16 inserted into the groove 12. Can be determined accurately.
第12図は本発明第三実施例カムシャフトの製造方法に
おけるカムロブとカム軸の接合縦断面図である。本実施
例の特徴あるところは、第二実施例で示した金属線材1
6を複数のカムロブlOに共通に挿入される長材にし、
各カムロブlOの所定の取付間隔に相応して凸部19を
カムロブ毎に形成した点にある。FIG. 12 is a longitudinal sectional view of a cam lobe and a camshaft joined together in a method for manufacturing a camshaft according to a third embodiment of the present invention. The characteristic feature of this embodiment is that the metal wire 1 shown in the second embodiment
6 as a long material that is commonly inserted into multiple cam lobes 1O,
The convex portion 19 is formed for each cam lobe in accordance with the predetermined mounting interval of each cam lobe 1O.
このような構成の複数の力1、ロブ10をカム軸11に
嵌合し、カムロブlOの中心位置をカム軸11の所定の
位置に合致させた状態で嵌合孔14の一端から両凹溝1
2.15内に金属線材16を挿入し、長材の一端を各凸
部19が嵌合孔14の中心に位置するように基準設定し
た後で、液相焼呆〜すれは、第二実施例と同様に嵌合孔
14の中心位置を基準にしてカムロブlOが収縮すると
ともに、複数のカムロブの組伺ζJ′法を一括して揃え
ることができる。The plurality of forces 1 and lobes 10 configured as described above are fitted to the camshaft 11, and with the center position of the cam lobe 10 aligned with a predetermined position of the camshaft 11, a double concave groove is inserted from one end of the fitting hole 14. 1
2. After inserting the metal wire 16 into the hole 15 and setting one end of the long wire as a reference so that each convex portion 19 is located at the center of the fitting hole 14, liquid phase annealing is carried out in the second implementation. As in the example, the cam lobe lO contracts with respect to the center position of the fitting hole 14, and the assembly directions ζJ' of a plurality of cam lobes can be aligned all at once.
なお、1−記例では焼結製の組付部品としてカムロブの
例を示したが、ジャーナル、ギア等の他の焼結製ml
(=1部品でも同様に実゛蔦することができる。In addition, in Example 1, a cam lobe is shown as an example of a sintered assembly part, but other sintered parts such as journals and gears can also be used.
(=One part can also be reproduced in the same way.
また、第−及び第三実施例でカムロブの組(=JJll
の基準位置をカムロブの中心位置とし、凸部l17及び
19をともに嵌合孔14の中心位置に配置する例を示し
たが、カムロブの基準位置と凸部17及び19を配置す
る位置とが一致すれば、上記例に限らずカムロブ及び嵌
合孔の各端部であってもよい。In addition, in the first and third embodiments, a set of cam lobes (=JJll
The reference position of the cam lobe is set as the center position of the cam lobe, and the protrusions l17 and 19 are both arranged at the center position of the fitting hole 14. If so, it is not limited to the above example, and may be each end of the cam lobe and the fitting hole.
[発明の効果]
以上述へたように、本発明によれば、カム@11の外周
面に凹溝を形成し、カムロブ、ジャーナル、ギア等の組
付部品の嵌合孔の内周面の所定位置に凹溝を形成して、
これらの凹溝がカーい対向するように組伺部品をカム軸
に嵌合して配置した後に、両凹溝内に金属線材を挿入し
、組(=J部品をカム軸に固定することにより、両凹溝
の形状、−J−法等を従来の突起と門構のように厳密な
精度で製造する必要がなく、しかも組付部品をカム軸の
長子方向の所定の位置まで嵌入した後に、両凹溝を互い
に対向させ両凹溝内に金属線材を挿入するだけで、組伺
部品の組伺けを迅速に行うことができため、組旧部品を
小さい製造工数で簡便にカム軸の軸回り方向の所定の位
置に接合することかできる。[Effects of the Invention] As described above, according to the present invention, a concave groove is formed on the outer circumferential surface of the cam@11, and the groove is formed on the inner circumferential surface of the fitting hole of the assembly parts such as the cam lobe, journal, gear, etc. By forming grooves at predetermined positions,
After fitting and arranging the assembly parts on the camshaft so that these grooves face each other, metal wires are inserted into both grooves, and the assembly (=J parts is fixed to the camshaft). , the shape of the double-concave groove, the -J- method, etc., do not need to be manufactured with strict precision like conventional protrusions and gate structures, and moreover, it is not necessary to manufacture the parts to be assembled to a predetermined position in the longitudinal direction of the camshaft. By simply placing the double grooves facing each other and inserting a metal wire into the grooves, you can quickly assemble the assembled parts. It can be joined at a predetermined position around the axis.
特に、組付部品のカム軸に対する接合を液相焼結により
行う場合には、組付部品を焼結製部材とし、かつ1−記
金属線材を組4=1部品の液相発生温度より低い温度で
液相を生じる金属で構成すれば。In particular, when joining the assembled parts to the camshaft by liquid-phase sintering, the assembled parts are made of sintered material, and the metal wire in 1- is set at a temperature lower than the liquid phase generation temperature of the group 4=1 part. If it is made of a metal that forms a liquid phase at certain temperatures.
金属線材が接合開始材となり、組伺部品のカム軸の軸回
り方向の組付位置を所定の位置と極めて精度よく合致さ
せることができる。The metal wire serves as a welding starting material, and the assembly position of the assembly component in the axial direction of the camshaft can be matched with a predetermined position with extremely high accuracy.
また、この低融点の金属線材に凸部を形成し。Additionally, convex portions are formed on this low melting point metal wire.
この金属線材を両凹溝内に挿入したときに、両凹溝に1
個の凸部だけが所定の位置で接触するようにすれば、組
伺部品が凸部を基準にして一定方向に収縮するため、組
伺部品のカム軸の長子方向のM1伺・J法は常に変化せ
ず、カ1、シャフト間でバラツキを生ずることなく一様
にすることができる。When this metal wire is inserted into the double concave groove, 1
If only the two convex parts are brought into contact at predetermined positions, the assembly part will contract in a certain direction based on the convex part, so the M1 distance and J direction in the longitudinal direction of the camshaft of the assembly part will be It does not always change and can be made uniform without causing variations between the shafts.
更に、組伺部品が複数の部品からなる場合には、低融点
の金属線材を短片化し、部品毎に各別に挿入して部品別
に位置決めをすることができ、またこの金属線材を長材
化し、かつ各部品の所定の数句間隔に相応して部品毎に
長材上に凸部を形成して複数の部品に連通ずれば、複数
の組イ1部品のカム軸の長子方向の組付寸法を一括して
揃えることができ、組伺工数を少なくすることができる
。Furthermore, when the assembled parts consist of multiple parts, the metal wire with a low melting point can be cut into short pieces, and each part can be inserted and positioned separately, and the metal wire can be made into long pieces. In addition, if protrusions are formed on the long material for each part in accordance with the predetermined spacing of each part and communicated with the plurality of parts, the assembly dimension in the longitudinal direction of the camshaft of one part of the plurality of assemblies can be adjusted. can be prepared all at once, reducing the number of man-hours required for assembly.
第1図は組伺けられたカムシャフトの縦断面図、第2図
は第1図のI−I断面拡大図、第3図は従来例カムシャ
フトの製造方法における液相焼結前のカムロブとカム軸
の接合縦断面図、第4図及び第5図は第3図の焼結前後
のカムロブと力1・軸の接合縦断面図、ft56図は本
発明第一・実施例力ムシャフI・の製造方法におけるカ
ムロブとカム軸の接合縦断面図、第7図は第6図のII
−II断面図、第8図及び第9図は同じくカムロブと
カム軸に形成された凹溝とこれらの凹溝に挿入された金
属線材の横断面図、第10図及び第11図は本発明第二
実施例カムシャフトの製造方法におけるカムロブとカム
軸の接合縦断面図、第12図は本発明第五実施例カムシ
ャフートの製造方法におけるカムロブとカム軸の接合縦
断面図である。
lO:カムロブ、ll:カム軸、
12 、15 :凹溝、14:嵌合孔、16二金属線材
、17,18,19:凸部。Fig. 1 is a longitudinal cross-sectional view of the assembled camshaft, Fig. 2 is an enlarged cross-sectional view taken along I-I in Fig. 1, and Fig. 3 is a cam lobe before liquid phase sintering in the conventional camshaft manufacturing method. Figures 4 and 5 are vertical cross-sectional views of the cam lobe and force 1 shaft before and after sintering in Figure 3, and ft56 is a joint longitudinal cross-sectional view of the force 1 shaft of the first embodiment of the present invention.・A vertical cross-sectional view of the cam lobe and cam shaft in the manufacturing method, FIG. 7 is II of FIG. 6.
-II sectional view, FIGS. 8 and 9 are cross-sectional views of the grooves formed in the cam lobe and the camshaft, and the metal wire inserted into these grooves, and FIGS. 10 and 11 are cross-sectional views of the present invention. FIG. 12 is a vertical cross-sectional view of a cam lobe and a camshaft joined together in a method of manufacturing a camshaft according to a second embodiment of the present invention. FIG. lO: cam lobe, ll: cam shaft, 12, 15: groove, 14: fitting hole, 16 bimetallic wire, 17, 18, 19: convex portion.
Claims (1)
成し、・方前記カム軸に嵌合する組付部品の嵌合孔の内
周面に11j記組伺部品を前記カム軸に対して所定の位
置に配置6シたときili記凹溝に対向する凹溝を形成
し、前記両凹溝が!l゛い対向するように「111記M
l伺畠品を7iij記カム軸にIK合して配置6シた後
に、l1ij記両門j1■内に金属線材を挿入して前記
組伺r’sR品を固定し前記カム佃1に接合するカムシ
ャフトの製造方法。 (2〕組伺1″で6品のカム+11+に苅する接合はロ
ー付により71われる1旨1′1請求の範囲第1 in
に記載のカム・ンヤフI・のA、す遣方1人。 t3)、it伺部品は焼結製部材であって、この組伺部
品のカム軸に対する接合は液相焼結により行われる!l
11訂請求の範囲第1 ’J4に記載のカムシャツI・
の製造方法。 (4)金属線材は組伺部品の液相発生温度より低い温度
で液相を生じる金属からなる特許請求の範囲第3項に記
載のカムシャフトの製造方法。 (5)金属線材に凸部を形成し、この金属線材を両凹溝
内に挿入したときに、両凹溝に1個の凸部だけが接触す
るように構成されたe訂請求の範囲第4項に記載のカム
シャフトの製造方法。 (6)組伺部品は複数の部品からなり、金属線材は部品
毎に各別に挿入される短片である4、¥ it1請求の
範囲i4項又は第5項に記載のカムシャフトの製造方法
。 (7)M1イ+J部品は複数の部品からなり、金属線材
はネ(数の部品に共通に挿入される長材であって、各f
jfJ品の所定の増刊間隔に相応して凸部が部品毎に形
成された特、11請求の範囲第4ダ1又は第5 slH
に記載の力l、シャフトの製遣方v;。[Scope of Claims] (1) A concave groove in the longitudinal direction is formed at one position on the outer circumferential surface of the camshaft, and the inner circumferential surface of the fitting hole of the assembly part to be fitted to the camshaft is formed in the longitudinal direction. When the assembled parts described in 11j are placed in a predetermined position with respect to the camshaft, a concave groove is formed opposite to the concave groove described in ii, and both of the concave grooves are formed. "111 M
After aligning the IKiba product to the camshaft in 7iij and placing it 6, insert a metal wire into the both gates in l1ij to fix the assembly r'sR product and join it to the cam Tsukuda 1. camshaft manufacturing method. (2) The joining of the six cams +11+ with a set depth of 1" is done by brazing 71.
A of Kam Nyahu I. listed in , 1 person. t3) The assembly part is a sintered member, and the joining of this assembly part to the camshaft is done by liquid phase sintering! l
Cam shirt I as described in Claims 1 'J4 of the 11th revision.
manufacturing method. (4) The method for manufacturing a camshaft according to claim 3, wherein the metal wire is made of a metal that generates a liquid phase at a temperature lower than the liquid phase generation temperature of the assembled parts. (5) A convex portion is formed on the metal wire, and when the metal wire is inserted into the double concave groove, only one convex portion contacts the double concave groove. The method for manufacturing a camshaft according to item 4. (6) The assembly part is made up of a plurality of parts, and the metal wire is a short piece inserted separately for each part. (7) The M1 I+J part consists of multiple parts, and the metal wire is a long material that is commonly inserted into several parts.
A convex portion is formed for each part in accordance with a predetermined reprint interval of JFJ products.
The force described in l, the method of manufacturing the shaft v;.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58178188A JPS6073167A (en) | 1983-09-28 | 1983-09-28 | Method of manufacturing cam shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58178188A JPS6073167A (en) | 1983-09-28 | 1983-09-28 | Method of manufacturing cam shaft |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6073167A true JPS6073167A (en) | 1985-04-25 |
JPH0423143B2 JPH0423143B2 (en) | 1992-04-21 |
Family
ID=16044133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58178188A Granted JPS6073167A (en) | 1983-09-28 | 1983-09-28 | Method of manufacturing cam shaft |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6073167A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2254623A (en) * | 1991-04-11 | 1992-10-14 | Taiwan Textile Hexagon Ltd | Woven fabric |
JP2009060103A (en) * | 2007-08-30 | 2009-03-19 | Ngk Insulators Ltd | Bonding structure, and manufacturing method thereof |
JP2012511654A (en) * | 2008-12-12 | 2012-05-24 | ティッセンクルップ プレスタ テックセンター アクチエンゲゼルシャフト | Adjustable camshaft configuration |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5614650A (en) * | 1979-07-10 | 1981-02-12 | Nippon Piston Ring Co Ltd | Jointed casting cam shaft |
JPS5825723A (en) * | 1981-08-08 | 1983-02-16 | Fujitsu Ltd | Frequency dividing system |
JPS5881559A (en) * | 1981-11-11 | 1983-05-16 | Toyota Motor Corp | Joining method of shaft member to fitting member |
-
1983
- 1983-09-28 JP JP58178188A patent/JPS6073167A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5614650A (en) * | 1979-07-10 | 1981-02-12 | Nippon Piston Ring Co Ltd | Jointed casting cam shaft |
JPS5825723A (en) * | 1981-08-08 | 1983-02-16 | Fujitsu Ltd | Frequency dividing system |
JPS5881559A (en) * | 1981-11-11 | 1983-05-16 | Toyota Motor Corp | Joining method of shaft member to fitting member |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2254623A (en) * | 1991-04-11 | 1992-10-14 | Taiwan Textile Hexagon Ltd | Woven fabric |
JP2009060103A (en) * | 2007-08-30 | 2009-03-19 | Ngk Insulators Ltd | Bonding structure, and manufacturing method thereof |
JP2012511654A (en) * | 2008-12-12 | 2012-05-24 | ティッセンクルップ プレスタ テックセンター アクチエンゲゼルシャフト | Adjustable camshaft configuration |
Also Published As
Publication number | Publication date |
---|---|
JPH0423143B2 (en) | 1992-04-21 |
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