JPH01165176U - - Google Patents
Info
- Publication number
- JPH01165176U JPH01165176U JP5763888U JP5763888U JPH01165176U JP H01165176 U JPH01165176 U JP H01165176U JP 5763888 U JP5763888 U JP 5763888U JP 5763888 U JP5763888 U JP 5763888U JP H01165176 U JPH01165176 U JP H01165176U
- Authority
- JP
- Japan
- Prior art keywords
- blank
- stroke
- upper electrode
- level
- determining
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Description
図面は、この考案の実施例を示し、第１図はス
ポツト溶接機の外観を示す斜視図、第２図は空打
判定用第１レベルＰ１および空打判定用第２レベ
ルＰ２に基づく空打判定を説明するための部分拡
大正面図、第３図はスポツト溶接機の欠点防止回
路を示す電気回路図である。
７……上部電極、５２……起動制御用リレー、
５７……溶接不良検出リレー、６６……ナツト無
検出リレー、７０……異常表示灯、ＰＵ……上部
電極のストローク上限位置、ＰＯ……正規打点位
置、ＰＤ……上部電極のストローク下限位置、Ｐ
Ｘ……上部電極のストローク位置、Ｐ１……空打
判定用第１レベル、Ｐ２……空打判定用第２レベ
ル。
The drawings show an embodiment of this invention, and FIG. 1 is a perspective view showing the external appearance of a spot welding machine, and FIG. FIG. 3 is a partially enlarged front view for explaining the determination, and is an electric circuit diagram showing a defect prevention circuit of the spot welding machine. 7... Upper electrode, 52... Starting control relay,
57... Welding defect detection relay, 66... Nut non-detection relay, 70... Abnormality indicator light, PU... Upper electrode stroke upper limit position, PO... Normal dotting point position, PD... Upper electrode stroke lower limit position, P
X... Stroke position of the upper electrode, P1... First level for determining a blank hit, P2... Second level for determining a blank hit.
Claims (1)
ローク位置検出手段と、 溶接時に、上部電極のストローク位置ＰＸを、
上部電極のストローク上限位置ＰＵと正規打点位
置ＰＯとの間の所定位置に設定された空打判定用
第１レベルＰ１および上部電極のストローク下限
位置ＰＤと正規打点位置ＰＯとの間の所定位置に
設定された空打判定用第２レベルＰ２と比較し、
上部電極のストローク位置ＰＸが空打判定用第１
レベルＰ１以上の高さ位置にある場合および空打
判定用第２レベルＰ２以下の高さ位置にある場合
に、空打検出信号をそれぞれ出力する空打判定手
段、 とを備えているスポツト溶接機の空打検出装置。[Claims for Utility Model Registration] Stroke position detection means for detecting the stroke position PX of the upper electrode;
A first level P1 for blank hit determination is set at a predetermined position between the stroke upper limit position PU of the upper electrode and the regular dot position PO, and a predetermined position between the stroke lower limit position PD of the upper electrode and the regular dot position PO. Comparing with the set second level P2 for determining a blank hit,
The stroke position PX of the upper electrode is the first for determining a blank hit.
A spot welding machine comprising: blank welding determination means for outputting a blank welding detection signal when the spot welding machine is at a height position equal to or higher than level P1 and when the spot welding machine is at a height position lower than second level P2 for determining blank welding. Dry shot detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5763888U JPH01165176U (en) | 1988-04-28 | 1988-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5763888U JPH01165176U (en) | 1988-04-28 | 1988-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01165176U true JPH01165176U (en) | 1989-11-17 |
Family
ID=31283483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5763888U Pending JPH01165176U (en) | 1988-04-28 | 1988-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01165176U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814070U (en) * | 1981-07-22 | 1983-01-28 | 富士電機株式会社 | Conveyance device |
| JPS62114779A (en) * | 1985-11-15 | 1987-05-26 | Nissan Motor Co Ltd | Detecting method for nut lacking in nut welding machine |
-
1988
- 1988-04-28 JP JP5763888U patent/JPH01165176U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814070U (en) * | 1981-07-22 | 1983-01-28 | 富士電機株式会社 | Conveyance device |
| JPS62114779A (en) * | 1985-11-15 | 1987-05-26 | Nissan Motor Co Ltd | Detecting method for nut lacking in nut welding machine |
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