JPH0332480A - Normal/defective condition deciding method for frictional pressure welding - Google Patents
Normal/defective condition deciding method for frictional pressure weldingInfo
- Publication number
- JPH0332480A JPH0332480A JP16734989A JP16734989A JPH0332480A JP H0332480 A JPH0332480 A JP H0332480A JP 16734989 A JP16734989 A JP 16734989A JP 16734989 A JP16734989 A JP 16734989A JP H0332480 A JPH0332480 A JP H0332480A
- Authority
- JP
- Japan
- Prior art keywords
- product
- friction
- joining
- torque
- defective
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000002950 deficient Effects 0.000 title claims description 14
- 230000020169 heat generation Effects 0.000 claims description 7
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は摩擦による発熱を利用して部材を接合する摩擦
圧接法に関し、とくに圧接品の良否判定方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a friction welding method for joining members using heat generated by friction, and particularly relates to a method for determining the quality of welded products.
[従来の技術]
従来、摩擦圧接法は二つの部材を突きあわせて、一方を
回転させ、他方を回転させずに一方に押し付けることに
より、接触面に発生する摩擦熱を利用して二つの部材を
接合するものである。この方法により接合した圧接品の
良否判定方法として、特開昭57−22889号公報に
摩擦運動の停止しはじめから終るまでの時間を測定する
ものが、また、特開昭57−22891号公報に摩擦運
動時の接合面における摩擦力を測定するものが開示され
ている。[Prior Art] Conventionally, in the friction welding method, two members are brought together, one is rotated and the other is pressed against the other without rotating, and the two members are bonded using the frictional heat generated at the contact surface. It is used to join. As a method for determining the quality of pressure-welded products joined by this method, Japanese Patent Application Laid-Open No. 57-22889 discloses a method that measures the time from the beginning to the end of frictional motion, and Japanese Patent Application Laid-Open No. 57-22891 discloses a method that measures the time from the beginning to the end of frictional motion. A device is disclosed that measures the frictional force on a joint surface during frictional motion.
また、圧接強度の代用特性として摩擦熱と押圧力による
部材の変形量に注目し、部材が接触してから圧接完了時
までの部材の移動量を基準値と比較し、許容範囲内であ
れば良品と判定していた。In addition, we focused on the amount of deformation of the member due to frictional heat and pressing force as a substitute characteristic for the pressure welding strength, and compared the amount of movement of the member from the time the members came into contact until the time the pressure welding was completed with the reference value, and if it was within the allowable range. It was judged to be a good product.
[発明が解決しようとする課題1
しかし、時間を測定する場合も摩擦力を測定する場合も
、一方の部材に他方の部材を押し付けるときの推力の変
動による接合強度のバラツキが大きく、不良品を良品と
判定するなどの欠点があった。また部材の移動量による
判定では、たとえば、接合面が傾いたり面粗さが粗かっ
たりして、最初は接合面の一部分しか接触せず、接合状
態が出来る前に部材が基準値近くまで移動してしまい、
接合部が完全に接合するまえに基準値に達したものと判
定し、強度不足の圧接品を誤って良品と判定することも
あった。[Problem to be Solved by the Invention 1] However, in both cases of measuring time and measuring frictional force, there are large variations in joint strength due to fluctuations in the thrust force when pressing one member against another, making it difficult to identify defective products. There were some drawbacks, such as the fact that it was judged to be a good product. In addition, when making judgments based on the amount of movement of parts, for example, if the joint surfaces are tilted or the surface roughness is rough, only a portion of the joint surfaces initially come into contact, and before the joint state is achieved, the parts move close to the reference value. I did it,
It was determined that the standard value had been reached before the joint was completely joined, and a pressure-welded product with insufficient strength was sometimes mistakenly determined to be a good product.
本発明は、摩擦発熱量の大きさにより良否判定を行ない
、接合強度のバラツキが少ない摩擦圧接法を実現して安
定した圧接品を提供することを目的とするものである。An object of the present invention is to provide a stable press-welded product by realizing a friction welding method in which quality is determined based on the amount of frictional heat generation and there is little variation in bonding strength.
[課題を解決するための手段J
本発明は、一方の接合部材を掴むチャックを備えた主軸
と、前記主軸を回転駆動する電動機と、他方の接合部材
を把持し主軸の軸方向に押圧されるようにしてある把持
部とを備え、前記両接合部材を相互に相対回転しながら
押圧する摩擦圧接機において、接合中の主軸のトルクと
回転数とを検出し、前記トルクと回転数とから摩擦発熱
量を算定し、前記摩擦発熱量と良品の基準値とを比較し
て前記摩擦発熱量が前記良品の基準値に達したときに、
圧接品を良品と判定する摩擦圧接の良否判定方法である
。[Means for Solving the Problems J] The present invention includes a main shaft equipped with a chuck that grips one joint member, an electric motor that rotationally drives the main shaft, and a main shaft that grips the other joint member and is pressed in the axial direction of the main shaft. In a friction welding machine that presses both joining members while rotating relative to each other, it detects the torque and rotational speed of the main shaft during welding, and calculates the friction from the torque and rotational speed. Calculate the calorific value, compare the frictional calorific value with a standard value for a non-defective product, and when the frictional calorific value reaches the standard value for a non-defective product,
This is a method for determining the quality of friction welding to determine whether a pressure-welded product is a good product.
[作用]
接合部分が摩擦熱により流動状態になって接合部を形成
するときの熱量は計算でも算定できるが、実際に摩擦圧
接機により動力を測定してみると、接合部材の条件が同
じであれば、接合に要する動力はほぼ一定している。接
合部材を接合するときの動力を主軸駆動モータの負荷ト
ルクおよび回転数より求めて比較し、予め求めておいた
基準値に達したときに良品であるとして判定するので、
判定が確実、かつ簡単にできる。[Effect] The amount of heat generated when the joining part becomes fluid due to frictional heat and forms a joint can be calculated by calculation, but when we actually measure the power using a friction welding machine, we find that the conditions of the joining members are the same. If there is, the power required for joining is almost constant. The power when joining the joining members is determined from the load torque and rotational speed of the main shaft drive motor and compared, and the product is determined to be good when it reaches a predetermined reference value.
Judgments can be made reliably and easily.
[実施例] 本発明を図に示す実施例について説明する。[Example] The present invention will be described with reference to embodiments shown in the drawings.
第2図は本発明の実施例の摩擦圧接機の側断面図で、摩
擦圧接機lの主軸台11には軸受に支持されて主軸駆動
用のモータ2によりベルト21を介し回転される主軸1
2が設けられている。主軸12には一方の接合部材Wt
を掴むチャック13が設けられている。また、摩擦圧接
機lのベツド14上には主軸12と同軸方向に摺動する
ように支持された把持部15が設けられ、他方の接合部
材W2を固定し、ブツシャ16により接合部材W2を回
転している接合部材Wlに押し付けるようにしである。FIG. 2 is a side sectional view of a friction welding machine according to an embodiment of the present invention, in which a main shaft 1 supported by a bearing is mounted on a headstock 11 of the friction welding machine 1 and is rotated by a motor 2 for driving the main shaft via a belt 21.
2 is provided. One joining member Wt is attached to the main shaft 12.
A chuck 13 for gripping is provided. Furthermore, a grip part 15 is provided on the bed 14 of the friction welding machine l and is supported so as to slide coaxially with the main shaft 12, which fixes the other joining member W2 and rotates the joining member W2 with a pusher 16. This is done so as to press it against the joining member Wl.
モータ2にはトルクセンサ3と回転数検出器4を設け、
モータ2において発生するトルクと回転数を検出してい
る。第1図は摩擦圧接機1の制御装置の構成を示すブロ
ック図で、制御装置5は一定時間毎にトルクセンサ3と
回転数検出器4とからトルクTと回転数Nの信号を取り
入れ、摩擦発熱量を算定し、良品の摩擦発熱量の基準値
と比較するようにしである。The motor 2 is provided with a torque sensor 3 and a rotation speed detector 4,
The torque and rotational speed generated in the motor 2 are detected. FIG. 1 is a block diagram showing the configuration of a control device of a friction welding machine 1. The control device 5 receives signals of torque T and rotation speed N from a torque sensor 3 and a rotation speed detector 4 at regular intervals, and The calorific value is calculated and compared with the standard value of frictional calorific value of a good product.
摩擦圧接する場合、第3図に示すようにインバータ等の
駆動装置6によって駆動されるモータ2により接合部材
Wtを回転するとともに、ブツシャ16により接合部材
W2を接合部材Wlに押圧し、−点鎖線で示した接触開
始の位置から移動して移動量lが良品の移動量基準値1
0の許容範囲に達して接合部Aを形成する。In the case of friction welding, as shown in FIG. 3, the joining member Wt is rotated by the motor 2 driven by the drive device 6 such as an inverter, and the joining member W2 is pressed against the joining member Wl by the bushing 16, and the - dotted chain line Moving from the contact start position shown in , the moving amount l is the moving amount standard value 1 for a good product.
0 tolerance is reached and joint A is formed.
このとき、摩擦接合中のトルクTから摩擦開始前のトル
クT0を減算器51により減じて、正味トルクを求め、
その出力と回転数との積を乗算器52により求めて正味
動力Pとし、積分!i!53により熱量に換算する式(
1)に基づいて、摩擦接合開始から所定時間まで時間で
積分して摩擦発熱量を計算する。At this time, the torque T0 before the start of friction is subtracted from the torque T during friction welding by a subtractor 51 to obtain the net torque,
The product of the output and the number of revolutions is determined by the multiplier 52, the net power P is obtained, and the integral is obtained! i! 53, the formula for converting into heat quantity (
Based on 1), the amount of frictional heat generation is calculated by integrating over time from the start of friction welding to a predetermined time.
P=fN/973 (T−To)dt ・・・(1
)この結果を良品について予め求めておいた基準発熱量
P、と比較器54により比較し、基準値に達した状態で
、接合品が良品であると判定する。P=fN/973 (T-To)dt...(1
) This result is compared with a reference calorific value P determined in advance for a non-defective product by a comparator 54, and when the reference value is reached, it is determined that the bonded product is a non-defective product.
なお、摩擦発熱量Pを基準発熱量P、と比較するととも
に、第4図に示すように、制御装置5に比絞量55と論
理積回路56とを設け、移動量検出器7で検出した接合
部材の移動量lを比較器55に入力し、移動量eが移動
量基準値10の許容範囲内に入っていることを確認する
ことができる。すなわち、更に良否判定の精度を高める
ために、摩擦発熱量の基準値と部材の移動量の基準値と
の両方の許容範囲に入ったことにより良品と判定して、
その両方の判定結果を論理積回路56により処理して最
終判定とし、その結果を駆動装置6に送るようにしても
よい。In addition, the frictional heat generation amount P is compared with the reference heat generation amount P, and as shown in FIG. It is possible to input the movement amount l of the joining member into the comparator 55 and confirm that the movement amount e is within the allowable range of the movement amount reference value 10. In other words, in order to further improve the accuracy of the pass/fail judgment, a product is judged to be good if both the standard value of frictional heat generation and the standard value of the amount of movement of the member are within the allowable range.
The results of both determinations may be processed by the AND circuit 56 to make a final determination, and the results may be sent to the drive device 6.
また、モータ2に電動機を使用する場合は、トルクセン
サ3によるトルク測定の代りに、モータ2の出力トルク
に比例する負荷電流と界磁束を検出し、トルクを計算で
求めてもよい。Furthermore, when an electric motor is used as the motor 2, instead of measuring the torque using the torque sensor 3, the load current and field flux which are proportional to the output torque of the motor 2 may be detected, and the torque may be determined by calculation.
[発明の効果]
以上述べたように、本発明によれば摩擦発熱量により接
合の良否を判定して圧接作業条件を決めるので、接合部
に最適な流動状態を経て硬化させることができ、接合強
度のバラツキが少ない摩擦圧接法を実現できる効果があ
る。[Effects of the Invention] As described above, according to the present invention, the quality of the joint is determined based on the amount of frictional heat generated and the pressure welding work conditions are determined, so that the welding part can be cured through the optimal fluid state, and the welding This has the effect of realizing a friction welding method with less variation in strength.
第1図は本発明の実施例を示すブロック図、第2図は側
断面図、第3図は動作中の側断面図、第4図は他の実施
例のブロック図である。
12・・・主軸、13・・・チャック、15・・・把持
部、16・・・ブツシャ、2・・・モータ、3・・・ト
ルクセンサ、4・・・回転数検出器、5・・・制御装置
、51・・・減算器、52・・・乗算器、53・・・積
分器、54.55・・・比較器、56・・・論理積回路
、6・・・駆動装置、7・・・移動量検出器FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a side sectional view, FIG. 3 is a side sectional view during operation, and FIG. 4 is a block diagram of another embodiment. DESCRIPTION OF SYMBOLS 12... Main shaft, 13... Chuck, 15... Gripping part, 16... Button, 2... Motor, 3... Torque sensor, 4... Rotation speed detector, 5... - Control device, 51... Subtractor, 52... Multiplier, 53... Integrator, 54.55... Comparator, 56... AND circuit, 6... Drive device, 7 ...Movement amount detector
Claims (1)
記主軸を回転駆動する電動機と、他方の接合部材を把持
し主軸の軸方向に押圧されるようにしてある把持部とを
備え、前記両接合部材を相互に相対回転しながら押圧す
る摩擦圧接機において、接合中の主軸のトルクと回転数
とを検出し、前記トルクと回転数とから摩擦発熱量を算
定し、前記摩擦発熱量と良品の基準値とを比較して前記
摩擦発熱量が前記良品の基準値に達したときに、圧接品
を良品と判定することを特徴とする摩擦圧接の良否判定
方法。 2、請求項1記載の良品の判定と、接合部材の接触して
から圧接完了時までの移動しうる方の接合部材の移動量
と良品の基準値とを比較し、前記接合部材の移動量が前
記良品の基準値に達したときに圧接品を良品と判定する
良品の判定との両方の結果から圧接品を良品と判定する
ことを特徴とする摩擦圧接の良否判定方法。[Claims] 1. A main shaft equipped with a chuck that grips one joint member, an electric motor that rotationally drives the main shaft, and a grip that grips the other joint member and is pressed in the axial direction of the main shaft. A friction welding machine that presses both joining members while rotating relative to each other, detects the torque and rotational speed of the main shaft during welding, and calculates the amount of frictional heat generated from the torque and rotational speed. A method for determining the quality of friction welding, comprising: comparing the frictional heat generation amount with a standard value for a non-defective product, and determining the pressure-welded product as a non-defective product when the frictional heat generation amount reaches the standard value for a non-defective product. 2. Determination of non-defective products according to claim 1, comparing the amount of movement of the movable joining member from the time of contact of the joining members to the completion of pressure welding with a reference value for a non-defective product, and determining the amount of movement of the joining members. A method for determining the quality of friction welding, characterized in that the pressure-welded product is determined to be non-defective when it reaches the reference value for a non-defective product, and the pressure-welded product is determined to be non-defective based on both results.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1167349A JP2707735B2 (en) | 1989-06-28 | 1989-06-28 | Quality judgment method of friction welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1167349A JP2707735B2 (en) | 1989-06-28 | 1989-06-28 | Quality judgment method of friction welding |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0332480A true JPH0332480A (en) | 1991-02-13 |
JP2707735B2 JP2707735B2 (en) | 1998-02-04 |
Family
ID=15848082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1167349A Expired - Fee Related JP2707735B2 (en) | 1989-06-28 | 1989-06-28 | Quality judgment method of friction welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2707735B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020064096A (en) * | 2001-01-31 | 2002-08-07 | 박근형 | Friction welding equipment |
-
1989
- 1989-06-28 JP JP1167349A patent/JP2707735B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020064096A (en) * | 2001-01-31 | 2002-08-07 | 박근형 | Friction welding equipment |
Also Published As
Publication number | Publication date |
---|---|
JP2707735B2 (en) | 1998-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5290779B2 (en) | Friction welding method | |
JP2000288743A (en) | Controller for resistance welding equipment | |
US5510593A (en) | Method and apparatus for separating a temperature-adhered electrode tip | |
CN109414781B (en) | Friction welding method and friction welding device | |
JPH0332480A (en) | Normal/defective condition deciding method for frictional pressure welding | |
KR101159021B1 (en) | Moving Seam welding maching and method for controlling of welding threrof | |
JP3195872B2 (en) | Method and apparatus for judging quality of friction welding products | |
JP3433637B2 (en) | Friction welding method | |
JP3433584B2 (en) | Friction welding method | |
JP4240935B2 (en) | Control method and control device for rotary tool for friction stir welding | |
JP2006187778A (en) | Apparatus and method of friction stir welding | |
JP2003245782A (en) | Friction agitation welding method and device | |
JP3491661B2 (en) | Friction welding method | |
JP3780637B2 (en) | Judging quality discrimination method in superposition ultrasonic welding | |
JP2002239754A (en) | Friction stirring joining method and its apparatus | |
JP4671523B2 (en) | Process management method and process management apparatus using friction stirring | |
JP4219598B2 (en) | Friction welding method | |
JP6530120B2 (en) | Friction stir spot welding device | |
JP2009082951A (en) | Friction welding system and friction welding method | |
KR100270098B1 (en) | Apparatus and method for quality judge of welding | |
JP5091611B2 (en) | Friction pressure welding system and friction pressure welding method | |
JPH11115055A (en) | Spin welding method and spin welding device with mechanism for executing the same | |
JPH10118777A (en) | Friction welding method | |
JP3671831B2 (en) | Transmission belt hoop deviation measuring device and hoop fluctuation measuring method | |
JPH0947885A (en) | Method and device for detecting upset amount in friction welding |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |