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JP2000202644A - Method for judging quality of ultrasonic welding - Google Patents

Method for judging quality of ultrasonic welding

Info

Publication number
JP2000202644A
JP2000202644A JP1118699A JP1118699A JP2000202644A JP 2000202644 A JP2000202644 A JP 2000202644A JP 1118699 A JP1118699 A JP 1118699A JP 1118699 A JP1118699 A JP 1118699A JP 2000202644 A JP2000202644 A JP 2000202644A
Authority
JP
Japan
Prior art keywords
welded
ultrasonic welding
anvil
welding
temperature
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.)
Withdrawn
Application number
JP1118699A
Other languages
Japanese (ja)
Inventor
Hidenori Goto
秀紀 後藤
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.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
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 Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP1118699A priority Critical patent/JP2000202644A/en
Publication of JP2000202644A publication Critical patent/JP2000202644A/en
Withdrawn legal-status Critical Current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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91216—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods enabling contactless temperature measurements, e.g. using a pyrometer
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91231—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9511—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by measuring their vibration frequency
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9512—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration frequency
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9515—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by measuring their vibration amplitude
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9516—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration amplitude
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Radiation Pyrometers (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

PROBLEM TO BE SOLVED: To judge acceptance/rejection of a welded condition between members to be welded in an ultrasonic welding process. SOLUTION: In a process to achieve the ultrasonic welding by the ultrasonic wave to be given from a horn chip, the temperature of a welded part between a second member W2 to be welded and a first member W1 to be welded is measured, the temperature of a placement part of an anvil 12 on which the first member W1 to be welded is placed is measured, and the temperature of the welded part is compared with the temperature of the placement part to judge the quality of the ultrasonic welding. The quality of the ultrasonic welding can similarly judged by measuring the amplitude of the first member W1 to be welded and the second member W2 to be welded.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、ホーンチップとア
ンビルとの間で超音波溶接を行うに際し、その溶接状態
の良否を判別する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for judging whether welding conditions are good or not when performing ultrasonic welding between a horn tip and an anvil.

【０００２】[0002]

【従来の技術】従来、一般的な超音波溶接機１として、
図２（Ａ）（Ｂ）に示すように、被溶接部材Ｗ１、Ｗ２
を載置するアンビル２の上方対向位置に超音波振動が付
与されるホーンチップ３が設けられ、該ホーンチップ３
を下降させてアンビル２との間に被溶接部材Ｗ１、Ｗ２
を挟み込んで超音波溶接を行うようにしたものがある
（実開昭５６−１４２８９１号公報）。そして、通常ア
ンビル２はベースブロック４に強固に固定され、アンビ
ル２上に載置される第１の被溶接部材Ｗ１もアンビル２
に対し固定することで、第１の被溶接部材Ｗ１はアンビ
ル２と一体化するように構成されている。このようにす
ることで、ホーンチップ３に押圧されて該ホーンチップ
３と一体的に振動する第２の被溶接部材Ｗ２と、アンビ
ル２に固定されて静止している第１の被溶接部材Ｗ１と
の間に最も強い振動を作用させることができる。従っ
て、この部分で効果的に発熱が生じるようになり、その
結果、良好な超音波溶接が行われることが知られてい
る。2. Description of the Related Art Conventionally, as a general ultrasonic welding machine 1,
As shown in FIGS. 2A and 2B, the members to be welded W1, W2
A horn tip 3 to which ultrasonic vibration is applied is provided at a position above the anvil 2 on which the horn chip 3 is placed.
To be welded and the anvil 2 to be welded W1, W2
And ultrasonic welding is carried out (Japanese Utility Model Application Laid-Open No. 56-142891). Then, the normal anvil 2 is firmly fixed to the base block 4, and the first welded member W1 mounted on the anvil 2 is also fixed to the anvil 2.
, The first member to be welded W1 is configured to be integrated with the anvil 2. By doing so, the second welded member W2 that is pressed by the horn tip 3 and vibrates integrally with the horn tip 3, and the first welded member W1 that is fixed to the anvil 2 and is stationary And the strongest vibration can be applied between them. Therefore, it is known that heat is generated effectively in this portion, and as a result, excellent ultrasonic welding is performed.

【０００３】また、超音波溶接が効果的に行われたか否
かを判別する方法として、特開平５−１１５９８６号公
報に記載されているモニタ方法が知られている。この方
法では、アンビルにピックアップを取り付けて、アンビ
ルへの超音波洩れ振動を検出し、この振動を波形解析す
ることにより超音波溶接の良否を判断するようにしてい
る。As a method for determining whether or not ultrasonic welding has been effectively performed, a monitoring method described in Japanese Patent Application Laid-Open No. 5-115986 is known. In this method, a pickup is attached to an anvil, ultrasonic vibration leaking to the anvil is detected, and the quality of ultrasonic welding is determined by analyzing the waveform of the vibration.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、上記ア
ンビルへの超音波洩れ振動を基準とするモニタ方法で
は、前述のように、第１の被溶接部材がアンビルに確実
に固定されて一体化されていることを前提としなければ
正確な良否判断が得られない。すなわち、第１の被溶接
部材とアンビルとの間に滑りが生じている場合は、結果
として第１の被溶接部材が第２の被溶接部材と共に超音
波振動してしまい良好な溶接が得られない。従って、前
記のモニタ方法では、このような状況における溶接不良
を正確に判断することができなかった。However, in the monitoring method based on the ultrasonic leak vibration to the anvil, as described above, the first member to be welded is securely fixed to the anvil and integrated. Unless it is assumed that there is a good or bad, accurate judgment of good or bad cannot be obtained. That is, when slippage occurs between the first member to be welded and the anvil, the first member to be welded is ultrasonically vibrated together with the second member to be welded, resulting in good welding. Absent. Therefore, the monitoring method described above cannot accurately determine a welding defect in such a situation.

【０００５】本発明は上記した問題に鑑みてなされたも
ので、アンビル上に固定される非溶接部材の固定状態の
影響による超音波溶接の良否をも正確に判別し得るよう
にすることを課題としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to make it possible to accurately determine the quality of ultrasonic welding due to the effect of the fixed state of a non-welded member fixed on an anvil. And

【０００６】[0006]

【課題を解決するための手段】上記課題を解決するた
め、本発明は、請求項１で、アンビル上に載置された第
１の被溶接部材と、該第１の被溶接部材上に重合されて
ホーンチップで押圧される第２の被溶接部材とを、上記
ホーンチップから付与される超音波によって超音波溶接
する工程において、上記第２の被溶接部材と第１の被溶
接部材との間の溶接部の温度を測定すると共に、上記第
１の被溶接部材を載置するアンビルの載置部の温度を測
定し、上記溶接部の温度と載置部の温度を、それぞれ基
準値と比較することで超音波溶接の良否を判別するよう
にしたことを特徴とする超音波溶接の良否判別方法を提
供している。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a first embodiment in which a first member to be welded mounted on an anvil and a first member to be welded are superposed on the first member to be welded. In the step of ultrasonically welding the second member to be welded and pressed by the horn tip by the ultrasonic wave applied from the horn tip, the second member to be welded and the first member to be welded are welded to each other. In addition to measuring the temperature of the welded portion between, the temperature of the mounting portion of the anvil on which the first member to be welded is mounted is measured, and the temperature of the welded portion and the temperature of the mounting portion are respectively set to a reference value and a reference value. There is provided a method for determining the quality of ultrasonic welding, wherein the quality of ultrasonic welding is determined by comparing.

【０００７】具体的には、上記溶接部の温度と載置部の
温度測定は、測定部分に対し非接触の状態で行うのが好
ましく、例えば、遠赤外線の検出によってスポット測定
が可能な放射温度計を用いるようにしている。上記方法
によれば、温度測定の結果、基準値と比較して溶接部の
温度が高く、載置部の温度が低い場合は、第１の被溶接
部材がアンビルにしっかりと固定され、その結果、第１
の被溶接部材と、第２の被溶接部材との間で効果的な超
音波振動による発熱が生じ、良好な超音波溶接が行われ
たものと判断される。一方、温度測定の結果、基準値と
比較して溶接部の温度が低く、載置部の温度が高い場合
は、第１の被溶接部材のアンビルに対する固定が不充分
で滑りを生じていると判断され、そのときの超音波溶接
は不良と判断される。また、温度測定の結果、溶接部お
よび載置部の温度がそれぞれ基準値より低い場合は、第
２の被溶接部材とホーンチップとの間で滑りが生じてい
ると判断され、そのときの超音波溶接は不良と判断され
る。Specifically, it is preferable that the measurement of the temperature of the welding portion and the temperature of the mounting portion are performed in a state where the measurement portion is not in contact with the measurement portion. We use a total meter. According to the above method, as a result of the temperature measurement, when the temperature of the welding portion is higher than the reference value and the temperature of the mounting portion is lower, the first member to be welded is firmly fixed to the anvil, and as a result, , First
Heat generation by effective ultrasonic vibration occurs between the member to be welded and the second member to be welded, and it is determined that satisfactory ultrasonic welding has been performed. On the other hand, as a result of the temperature measurement, when the temperature of the welded portion is lower and the temperature of the mounting portion is higher than the reference value, the first member to be welded is not sufficiently fixed to the anvil and slippage occurs. It is determined that the ultrasonic welding at that time is defective. Also, as a result of the temperature measurement, when the temperatures of the welded portion and the mounting portion are respectively lower than the reference values, it is determined that slippage has occurred between the second welded member and the horn tip, Sonic welding is determined to be defective.

【０００８】請求項２の発明では、アンビル上に載置さ
れた第１の被溶接部材と、該第１の被溶接部材上に重合
されてホーンチップで押圧される第２の被溶接部材と
を、上記ホーンチップから付与される超音波によって超
音波溶接する工程において、上記第１の被溶接部材と第
２の被溶接部材の振幅をそれぞれ測定し、上記第１の被
溶接部材の振幅と第２の被溶接部材の振幅を、それぞれ
基準値と比較することで超音波溶接の良否を判別するよ
うにしたことを特徴とする超音波溶接の良否判別方法を
提供している。According to the second aspect of the present invention, the first member to be welded mounted on the anvil, and the second member to be welded superposed on the first member to be welded and pressed by the horn tip are provided. In the step of ultrasonic welding by ultrasonic waves applied from the horn tip, the amplitude of the first member to be welded and the amplitude of the second member to be welded are respectively measured, and the amplitude of the first member to be welded and A method for determining the quality of ultrasonic welding is characterized in that the quality of ultrasonic welding is determined by comparing the amplitude of the second member to be welded with a reference value.

【０００９】具体的には、上記第１、第２の被溶接部材
の振幅の測定は、測定部分に対し非接触の状態で行うの
が好ましく、例えば、レーザードップラー式の振動計を
用いるようにしている。上記方法によれば、測定の結
果、第１の被溶接部材の振幅が基準値より小で、第２の
被溶接部材の振幅が基準値より大である場合は、第１の
被溶接部材と、第２の被溶接部材との間で効果的な超音
波振動による発熱が生じ、よって、良好な超音波溶接が
行われたものと判断する。一方、第１の被溶接部材と第
２の被溶接部材の振幅が共に基準値より大である場合
は、第１の被溶接部材のアンビルに対する固定が不充分
で滑りを生じていると判断され、この場合、第１の被溶
接部材と、第２の被溶接部材のとの間の溶接部では、相
対的な振動が不足して十分な発熱が得られず、溶接不良
と判断される。逆に第１の被溶接部材とアンビルとの間
で発熱することとなる。さらに、第１の被溶接部材と第
２の被溶接部材の振幅が共に基準値より小さい場合は、
第２の被溶接部材とホーンチップとの間で滑りが生じて
いると判断され、この場合も上記溶接部では相対的な振
動が不足して十分な発熱が得られず、溶接不良と判断さ
れる。More specifically, the measurement of the amplitude of the first and second members to be welded is preferably performed in a non-contact state with respect to a measurement portion. For example, a laser Doppler vibrometer may be used. ing. According to the above method, when the amplitude of the first member to be welded is smaller than the reference value and the amplitude of the second member to be welded is larger than the reference value, the first member to be welded is Then, heat is generated between the second member to be welded and the effective ultrasonic vibration, so that it is determined that satisfactory ultrasonic welding has been performed. On the other hand, when the amplitudes of the first member to be welded and the second member to be welded are both larger than the reference value, it is determined that the first member to be welded is not sufficiently fixed to the anvil and slippage occurs. In this case, in the welded portion between the first member to be welded and the second member to be welded, sufficient heat generation cannot be obtained due to insufficient relative vibration, and it is determined that welding is defective. Conversely, heat is generated between the first member to be welded and the anvil. Further, when both the amplitude of the first member to be welded and the amplitude of the second member to be welded are smaller than the reference value,
It is determined that slippage has occurred between the second member to be welded and the horn tip. Also in this case, sufficient heat is not obtained due to insufficient relative vibration in the welded portion, and it is determined that welding is defective. You.

【００１０】本発明においては、上記のように第１、第
２の被溶接部材間の溶接部の溶接状態を正確に把握する
ことができる。また、溶接状態の良否を判断するための
温度または振幅の測定を、被溶接部材に非接触の状態で
行うことにより、被溶接部材のサイズ、形状に左右され
ず、常に安定したデータを取得することができる。[0010] In the present invention, the welding state of the welded portion between the first and second members to be welded can be accurately grasped as described above. In addition, by measuring the temperature or amplitude for determining the quality of the welding state in a non-contact state with the member to be welded, stable data is always obtained regardless of the size and shape of the member to be welded. be able to.

【００１１】[0011]

【発明の実施の形態】以下、本発明の実施形態を図面を
参照して説明する。図１は第１実施形態を示し、銅板か
らなるバスバーを第１の被溶接部材Ｗ１、電線の端末の
芯線を第２の被溶接部材Ｗ２とし、これらを超音波溶接
機１１で溶接する例として、第１の被溶接部材Ｗ１をア
ンビル１２上に載置し、その上に第２の被溶接部材Ｗ２
を重合して、ホーンチップ１３でこれらを挟み込んで超
音波溶接するようにしている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment, in which a bus bar made of a copper plate is a first member to be welded W1 and a core wire of a terminal of an electric wire is a second member to be welded W2, and these are welded by an ultrasonic welding machine 11 as an example. , The first member to be welded W1 is placed on the anvil 12 and the second member to be welded W2 is placed thereon.
Are superposed, and they are sandwiched by the horn tip 13 and ultrasonically welded.

【００１２】上記超音波溶接機１１の近傍には、遠赤外
線検出により非接触で任意のスポットの温度を測定可能
な放射温度計１４、１５を配置している。そして、一方
の放射温度計１４は、第１の被溶接部材Ｗ１を載置する
アンビル１２の載置部１２ａにスポットを設定して設置
し、他方の放射温度計１５は、第２の被溶接部材Ｗ２と
第１の被溶接部材Ｗ１との間の溶接部Ｗａにスポットを
設定して設置している。即ち、載置部１２ａと溶接部Ｗ
ａの温度を放射温度計１４、１５で個別に測定可能とし
ている。In the vicinity of the ultrasonic welding machine 11, radiation thermometers 14, 15 capable of measuring the temperature of an arbitrary spot in a non-contact manner by detecting far infrared rays are arranged. Then, one radiation thermometer 14 sets and installs a spot on the mounting portion 12a of the anvil 12 on which the first member to be welded W1 is mounted, and the other radiation thermometer 15 sets the second welding member W1. A spot is set and installed at a welding portion Wa between the member W2 and the first member to be welded W1. That is, the mounting portion 12a and the welding portion W
The temperature of a can be individually measured by the radiation thermometers 14 and 15.

【００１３】そして、放射温度計１４、１５で測定され
た温度データは、良否判定装置１６に入力され、ここ
で、それぞれの部位で予め定められた基準値と比較し
て、溶接状態の良否を判別し、その結果を警報等の信号
として発するようにしている。上記基準値は、良好な超
音波溶接が行われたサンプルの溶接工程中における溶接
部Ｗａおよび載置部１２ａの温度として予め登録してお
く。[0013] The temperature data measured by the radiation thermometers 14 and 15 is input to a pass / fail judgment device 16, where it is compared with a predetermined reference value at each site to determine whether the welding condition is good or bad. The determination is made and the result is issued as a signal such as an alarm. The reference value is registered in advance as the temperature of the welded portion Wa and the mounting portion 12a during the welding process of the sample on which the excellent ultrasonic welding has been performed.

【００１４】上記超音波溶接機１１を用いて溶接を行う
には、ホーンチップ１３の上昇位置において、アンビル
１２の載置部１２ａに第１の被溶接部材Ｗ１であるバス
バーを載置して適当な固定手段により固定し、次いで第
１の被溶接部材Ｗ１上に、溶着すべき第２の被溶接部材
Ｗ２として電線端末の芯線を重合する。この状態からホ
ーンチップ１３を下降させて、アンビル１２との間で第
１の被溶接部材Ｗ１と第２の被溶接部材Ｗ２を挟み込ん
で押圧すると同時に超音波振動を付与する。すると、第
２の被溶接部材Ｗ２にはホーンチップ１３から直接超音
波振動が付与される。In order to perform welding using the ultrasonic welding machine 11, a bus bar as the first member to be welded W1 is mounted on the mounting portion 12a of the anvil 12 at a position where the horn tip 13 is raised. Then, the core wire of the wire end is superimposed on the first member to be welded W1 as the second member to be welded W2 on the first member to be welded W1. From this state, the horn tip 13 is lowered to sandwich and press the first member to be welded W1 and the second member to be welded W2 between the anvil 12 and simultaneously apply ultrasonic vibration. Then, ultrasonic vibration is directly applied from the horn tip 13 to the second member to be welded W2.

【００１５】そして、ホーンチップ１３から超音波振動
を付与している間、放射温度計１４、１５により載置部
１２ａおよび溶接部Ｗａの温度を測定する。そして、上
記温度データは良否判定装置１６に入力され、ここで、
それぞれの基準値と比較される。その結果、基準値と比
較して溶接部Ｗａの温度が高く、載置部１２ａの温度が
低い場合は、良好な超音波溶接が行われていると判断さ
れる。即ち、このような状態では、第１の被溶接部材Ｗ
１がアンビル１２にしっかりと固定されており、かつ、
第２の被溶接部材Ｗ２がホーンチップ１３に押圧されて
滑りを生じることなく第１の被溶接部材Ｗ１との間に十
分な超音波振動が付与されていると判断される。While the ultrasonic vibration is applied from the horn tip 13, the radiation thermometers 14 and 15 measure the temperatures of the mounting portion 12a and the welding portion Wa. Then, the temperature data is input to the pass / fail determination device 16, where:
It is compared with each reference value. As a result, when the temperature of the welded portion Wa is higher and the temperature of the mounting portion 12a is lower than the reference value, it is determined that excellent ultrasonic welding is being performed. That is, in such a state, the first member to be welded W
1 is firmly fixed to the anvil 12, and
It is determined that sufficient ultrasonic vibration is applied between the second member to be welded W1 and the first member to be welded W1 without the second member W2 being pressed by the horn tip 13 and causing a slip.

【００１６】一方、溶接部Ｗａの温度データが基準値と
比較して低く、載置部１２ａの温度が基準値より高い場
合は、溶接不良と判断される。即ち、この様態では、第
１の被溶接部材Ｗ１のアンビル１２に対する固定が不充
分で滑りを生じていると判断され、その結果、第１の被
溶接部材Ｗ１と第２の被溶接部材Ｗ２が一体的に振動し
てしまい溶接部１２ａでの発熱が不充分となる。On the other hand, when the temperature data of the welding portion Wa is lower than the reference value and the temperature of the mounting portion 12a is higher than the reference value, it is determined that the welding is defective. That is, in this embodiment, it is determined that the first workpiece W1 is not sufficiently fixed to the anvil 12 and slipping occurs, and as a result, the first workpiece W1 and the second workpiece W2 are separated. Vibration occurs integrally, and heat generation at the welded portion 12a becomes insufficient.

【００１７】また、温度比較の結果、溶接部Ｗａおよび
載置部１２ａの温度がそれぞれ基準値より低い場合も溶
接不良と判断される。この場合、第２の被溶接部材Ｗ２
とホーンチップ１３との間で滑りが生じ、その結果、溶
接部Ｗａに十分な超音波振動が付与することができなく
なる。Also, as a result of the temperature comparison, when the temperatures of the welding portion Wa and the mounting portion 12a are lower than the reference values, it is also determined that the welding is defective. In this case, the second member to be welded W2
And the horn tip 13 slips, so that sufficient ultrasonic vibration cannot be applied to the welded portion Wa.

【００１８】図２は第２実施形態を示し、本実施形態で
は、被溶接部材Ｗ１と被溶接部材Ｗ２の振幅を測定して
基準値と比較することで超音波溶接の良否を判別するよ
うにしている。このため、超音波溶接機１１の近傍に
は、レーザードップラー式の振動計２４、２５を配置
し、非接触での測定を可能としている。この振動計２
４、２５は、レーザビームを測定対象に照射することで
ドットシフトを起こした反射ビームと入射時のレーザー
ビームとの周波数の差により、測定対象のもつ振動速度
を検出するものである。そして、微分積分機能により、
加速度や変位も求めることができ、さらに、デジタルオ
シロスコープとの組み合わせにより振動波形の表示も可
能である。FIG. 2 shows a second embodiment. In this embodiment, the quality of ultrasonic welding is determined by measuring the amplitudes of the workpieces W1 and W2 and comparing them with a reference value. ing. For this reason, laser Doppler vibrometers 24 and 25 are arranged near the ultrasonic welding machine 11 to enable non-contact measurement. This vibrometer 2
Reference numerals 4 and 25 detect the vibration speed of the measurement target based on the difference in frequency between the reflected beam that has undergone dot shift by irradiating the measurement target with the laser beam and the laser beam at the time of incidence. And by the differential integration function,
Acceleration and displacement can be obtained, and furthermore, a vibration waveform can be displayed in combination with a digital oscilloscope.

【００１９】そして、一方の振動計２４からは、アンビ
ル１２上の第１の被溶接部材Ｗ１に向けてレーザービー
ムが照射され、他方の振動計２５から発せられるレーザ
ービームはホーンチップ１３にて押圧される第２の被溶
接部材Ｗ２に照射されるように取付位置が調整されてい
る。Then, a laser beam is irradiated from one vibrometer 24 toward the first workpiece W1 on the anvil 12, and a laser beam emitted from the other vibrometer 25 is pressed by the horn tip 13. The mounting position is adjusted so that the second member to be welded W2 is irradiated.

【００２０】上記第１実施形態と同様に、第１の被溶接
部材Ｗ１と第２の被溶接部材Ｗ２を超音波溶接する間、
レーザードップラー式の振動計２４、２５から第１の被
溶接部材Ｗ１と第２の被溶接部材Ｗ２に対し、それぞれ
レーザービームを照射して個々の振幅を測定し、良否判
定装置２６にて基準値と比較する。その結果、第１の被
溶接部材Ｗ１がアンビル１２にしっかりと固定されてい
る場合は、第１の被溶接部材Ｗ１の振幅が基準値より小
さく、ホーンチップ１３から直接超音波振動を受ける第
２の被溶接部材Ｗ２の振幅が基準値より大きくなる。よ
って、第１の被溶接部材Ｗ１と第２の被溶接部材Ｗ２と
の間で効果的な超音波振動による発熱が生じ、良好な超
音波溶接が行われたものと判断される。As in the first embodiment, during the ultrasonic welding of the first member to be welded W1 and the second member to be welded W2,
Laser Doppler vibrometers 24 and 25 irradiate a laser beam to each of first member W1 and second member W2 to be welded and measure their respective amplitudes. Compare with As a result, when the first member to be welded W1 is firmly fixed to the anvil 12, the amplitude of the first member to be welded W1 is smaller than the reference value, and the second member to receive ultrasonic vibration directly from the horn tip 13 is used. Becomes larger than the reference value. Accordingly, heat is generated by the effective ultrasonic vibration between the first member to be welded W1 and the second member to be welded W2, and it is determined that excellent ultrasonic welding has been performed.

【００２１】一方、第１の被溶接部材Ｗ１のアンビル１
２に対する固定が不充分である場合は、アンビル１２と
第１の被溶接部材Ｗ１との間に滑りが生じ、振動計２
４、２５による振幅の測定値は、第１の被溶接部材Ｗ
１、第２の被溶接部材Ｗ２ともに基準値より大きくな
る。この場合、第１の被溶接部材Ｗ１と第２の被溶接部
材Ｗ２との間では相対的な振動が不足して十分な発熱が
得られず、良好な超音波溶接が行われていないと判断さ
れる。逆に第１の被溶接部材Ｗ１とアンビル１２との間
で発熱することとなる。On the other hand, the anvil 1 of the first workpiece W1
2 is not sufficiently fixed, slippage occurs between the anvil 12 and the first welded member W1, and the vibration meter 2
The measured value of the amplitude according to 4, 25 is the first welded member W
Both the first and second members to be welded W2 are larger than the reference value. In this case, it is determined that the relative vibration between the first member to be welded W1 and the second member to be welded W2 is insufficient, sufficient heat is not obtained, and that good ultrasonic welding is not performed. Is done. Conversely, heat is generated between the first welded member W1 and the anvil 12.

【００２２】また、ホーンチップ１３による押圧が不充
分で、第２の被溶接部材Ｗ２とホーンチップ１３との間
で滑りが生じている場合は、第１の被溶接部材Ｗ１と第
２の被溶接部材Ｗ２との間では相対的な振動が不足して
共に基準値より小さくなる。よって、十分な発熱が得ら
れず、この場合も良好な超音波溶接が行われていないと
判断される。When the pressing by the horn tip 13 is insufficient and slippage occurs between the second member to be welded W2 and the horn tip 13, the first member to be welded W1 and the second member to be welded are not slid. The relative vibration between the welding member W2 and the welding member W2 is insufficient, and both become smaller than the reference value. Therefore, sufficient heat is not obtained, and it is determined that good ultrasonic welding is not performed in this case as well.

【００２３】[0023]

【発明の効果】以上の説明より明らかなように、本発明
の超音波溶接の良否判別方法によれば、特定部位の温度
または振幅を測定して基準値と比較することで、被溶接
部材間での超音波溶接の良否を正確に判断することがで
きる。その際、溶接不良の要因として、第１の被溶接部
材とアンビルとの間に滑りが生じる場合、ホーンチップ
と第２の被溶接部材との間に滑りが生じる場合を要因別
に把握することができるため、不良対策を有効に行うこ
とができる。As is apparent from the above description, according to the ultrasonic welding pass / fail determination method of the present invention, the temperature or amplitude of a specific portion is measured and compared with a reference value. The quality of the ultrasonic welding can be accurately determined. At this time, as a cause of poor welding, it is possible to grasp for each factor whether slip occurs between the first welded member and the anvil or slip occurs between the horn tip and the second welded member. Therefore, it is possible to effectively take measures against defects.

【図面の簡単な説明】[Brief description of the drawings]

【図１】 本発明の第１実施形態における超音波溶の良
否判別方法による測定状態を示す図である。FIG. 1 is a diagram showing a measurement state according to a method for determining the quality of ultrasonic melting according to a first embodiment of the present invention.

【図２】 本発明の第２実施形態における超音波溶の良
否判別方法による測定状態を示す図である。FIG. 2 is a diagram illustrating a measurement state according to a method for determining the quality of ultrasonic melting according to a second embodiment of the present invention.

【図３】 （Ａ）（Ｂ）は従来例を示す図である。FIGS. 3A and 3B are diagrams showing a conventional example.

【符号の説明】[Explanation of symbols]

Ｗ１、Ｗ２ 被溶接部材 Ｗａ 溶接部 １１ 超音波溶接機 １２ アンビル １２ａ 載置部 １３ ホーンチップ １４、１５ 放射温度計 ２４、２５ 振動計 W1, W2 Member to be welded Wa Welding part 11 Ultrasonic welding machine 12 Anvil 12a Placement part 13 Horn tip 14, 15 Radiation thermometer 24, 25 Vibration meter

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 アンビル上に載置された第１の被溶接部
材と、該第１の被溶接部材上に重合されてホーンチップ
で押圧される第２の被溶接部材とを、上記ホーンチップ
から付与される超音波によって超音波溶接する工程にお
いて、 上記第２の被溶接部材と第１の被溶接部材との間の溶接
部の温度を測定すると共に、上記第１の被溶接部材を載
置するアンビルの載置部の温度を測定し、 上記溶接部の温度と載置部の温度を、それぞれ基準値と
比較することで超音波溶接の良否を判別するようにした
ことを特徴とする超音波溶接の良否判別方法。1. A horn tip comprising: a first member to be welded mounted on an anvil; and a second member to be welded superposed on the first member to be welded and pressed by a horn tip. In the step of ultrasonic welding by the ultrasonic wave applied from the above, while measuring the temperature of the welded portion between the second member to be welded and the first member to be welded, and mounting the first member to be welded The temperature of the mounting portion of the anvil to be placed is measured, and the quality of the ultrasonic welding is determined by comparing the temperature of the welding portion and the temperature of the mounting portion with reference values, respectively. Quality judgment method of ultrasonic welding. 【請求項２】 アンビル上に載置された第１の被溶接部
材と、該第１の被溶接部材上に重合されてホーンチップ
で押圧される第２の被溶接部材とを、上記ホーンチップ
から付与される超音波によって超音波溶接する工程にお
いて、 上記第１の被溶接部材と第２の被溶接部材の振幅をそれ
ぞれ測定し、 上記第１の被溶接部材の振幅と第２の被溶接部材の振幅
を、それぞれ基準値と比較することで超音波溶接の良否
を判別するようにしたことを特徴とする超音波溶接の良
否判別方法。2. A horn tip, comprising: a first member to be welded mounted on an anvil; and a second member to be welded superimposed on the first member to be welded and pressed by a horn tip. In the step of performing ultrasonic welding by ultrasonic waves given from the above, the amplitude of the first member to be welded and the amplitude of the second member to be welded are measured, and the amplitude of the first member to be welded and the second member to be welded are measured. A method for determining the quality of ultrasonic welding, wherein the quality of ultrasonic welding is determined by comparing the amplitude of each member with a reference value.
JP1118699A 1999-01-19 1999-01-19 Method for judging quality of ultrasonic welding Withdrawn JP2000202644A (en)

Priority Applications (1)

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EP1447204A1 (en) * 2003-02-12 2004-08-18 Telsonic Holding AG Apparatus and process for working of elements
JP2005138182A (en) * 2003-10-14 2005-06-02 Bondotekku:Kk Ultrasonic vibration joining method and apparatus
JP2006181622A (en) * 2004-12-28 2006-07-13 Nissan Motor Co Ltd Ultrasonic joining device and ultrasonic jointing method
JP2008145252A (en) * 2006-12-08 2008-06-26 Nissan Motor Co Ltd Apparatus and method for inspecting ultrasonic welding, and apparatus and method for ultrasonic welding
JP2010029873A (en) * 2008-07-25 2010-02-12 Calsonic Kansei Corp Ultrasonic metal welder, and joined metallic plate obtained using the same
JP2011152725A (en) * 2010-01-28 2011-08-11 Autonetworks Technologies Ltd Method of ultrasonic bonding of polymer material and apparatus for the same
JP2012091213A (en) * 2010-10-28 2012-05-17 Mitsubishi Electric Engineering Co Ltd Device and method for controlling ultrasonic joining
KR101152645B1 (en) 2007-06-14 2012-06-04 주식회사 엘지화학 Method of Inspecting Welding State on Welding Portion of Cell
WO2014112272A1 (en) * 2013-01-15 2014-07-24 日産自動車株式会社 Ultrasonic welding device and anvil-exchanging method for ultrasonic welding device
WO2014112307A1 (en) * 2013-01-15 2014-07-24 日産自動車株式会社 Welding state inspection method
WO2017084988A1 (en) * 2015-11-20 2017-05-26 Kromberg & Schubert Gmbh Apparatus and method for monitoring an ultrasonic welding process
JP2020066042A (en) * 2018-10-26 2020-04-30 株式会社ダイヘン Bonding apparatus
JP7577500B2 (en) 2020-10-06 2024-11-05 株式会社東芝 Ultrasonic bonding equipment

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447204A1 (en) * 2003-02-12 2004-08-18 Telsonic Holding AG Apparatus and process for working of elements
JP2005138182A (en) * 2003-10-14 2005-06-02 Bondotekku:Kk Ultrasonic vibration joining method and apparatus
JP2006181622A (en) * 2004-12-28 2006-07-13 Nissan Motor Co Ltd Ultrasonic joining device and ultrasonic jointing method
JP2008145252A (en) * 2006-12-08 2008-06-26 Nissan Motor Co Ltd Apparatus and method for inspecting ultrasonic welding, and apparatus and method for ultrasonic welding
KR101152645B1 (en) 2007-06-14 2012-06-04 주식회사 엘지화학 Method of Inspecting Welding State on Welding Portion of Cell
JP2010029873A (en) * 2008-07-25 2010-02-12 Calsonic Kansei Corp Ultrasonic metal welder, and joined metallic plate obtained using the same
JP2011152725A (en) * 2010-01-28 2011-08-11 Autonetworks Technologies Ltd Method of ultrasonic bonding of polymer material and apparatus for the same
JP2012091213A (en) * 2010-10-28 2012-05-17 Mitsubishi Electric Engineering Co Ltd Device and method for controlling ultrasonic joining
WO2014112272A1 (en) * 2013-01-15 2014-07-24 日産自動車株式会社 Ultrasonic welding device and anvil-exchanging method for ultrasonic welding device
WO2014112307A1 (en) * 2013-01-15 2014-07-24 日産自動車株式会社 Welding state inspection method
CN104918743A (en) * 2013-01-15 2015-09-16 日产自动车株式会社 Welding state inspection method
JP5960292B2 (en) * 2013-01-15 2016-08-02 日産自動車株式会社 Bonding state inspection method
CN104918743B (en) * 2013-01-15 2017-04-12 日产自动车株式会社 Welding state inspection method
US10466204B2 (en) 2013-01-15 2019-11-05 Automotive Energy Supply Corporation Welding state inspection method
WO2017084988A1 (en) * 2015-11-20 2017-05-26 Kromberg & Schubert Gmbh Apparatus and method for monitoring an ultrasonic welding process
JP2020066042A (en) * 2018-10-26 2020-04-30 株式会社ダイヘン Bonding apparatus
JP7141306B2 (en) 2018-10-26 2022-09-22 株式会社ダイヘン Welding equipment
JP7577500B2 (en) 2020-10-06 2024-11-05 株式会社東芝 Ultrasonic bonding equipment

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