JPH0377841U - - Google Patents
Info
- Publication number
- JPH0377841U JPH0377841U JP9658389U JP9658389U JPH0377841U JP H0377841 U JPH0377841 U JP H0377841U JP 9658389 U JP9658389 U JP 9658389U JP 9658389 U JP9658389 U JP 9658389U JP H0377841 U JPH0377841 U JP H0377841U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- position detection
- cam position
- stepping motor
- pulses
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Description
第１図は、カムとホームポジシヨンセンサの位
置関係を示す斜視図、第２図は、本考案のカム位
置検出機構の該略ブロツク図である。
１……カム、２……ホームポジシヨンセンサ、
３……カム位置検出用突起、４……ステツピング
モータ、５……センサ回路、６……モータ駆動回
路、７……カウント回路、８……制御回路。
FIG. 1 is a perspective view showing the positional relationship between the cam and the home position sensor, and FIG. 2 is a schematic block diagram of the cam position detection mechanism of the present invention. 1...Cam, 2...Home position sensor,
3...Protrusion for detecting cam position, 4...Stepping motor, 5...Sensor circuit, 6...Motor drive circuit, 7...Count circuit, 8...Control circuit.
Claims (1)
所定のカム位置においてカム位置検出を行なうカ
ム位置検出機構において、カムの一部にカム位置
検出用突起を形成し、該カム位置検出用突起の通
過によりカムのホームポジシヨンを検出するホー
ムポジシヨンセンサを設け、また上記ステツピン
グモータの駆動パルス数をカウントするカウント
回路と、該カウント回路がカウントした、カムの
始動時からカム位置検出用突起がホームポジシヨ
ンセンサの設定位置を通過するまでの上記駆動パ
ルス数を認識する制御回路とを備えたことを特徴
とするカム位置検出機構。 The cam is rotated by a stepping motor,
In a cam position detection mechanism that detects a cam position at a predetermined cam position, a cam position detection protrusion is formed on a part of the cam, and the home position of the cam is detected by passage of the cam position detection protrusion. A sensor is provided, and a counting circuit that counts the number of drive pulses of the stepping motor, and a count circuit that counts the number of driving pulses of the stepping motor, and the number of pulses counted by the counting circuit from the time the cam starts until the cam position detection protrusion passes the set position of the home position sensor. A cam position detection mechanism comprising: a control circuit that recognizes the number of drive pulses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9658389U JPH0377841U (en) | 1989-08-18 | 1989-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9658389U JPH0377841U (en) | 1989-08-18 | 1989-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0377841U true JPH0377841U (en) | 1991-08-06 |
Family
ID=31645776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9658389U Pending JPH0377841U (en) | 1989-08-18 | 1989-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0377841U (en) |
-
1989
- 1989-08-18 JP JP9658389U patent/JPH0377841U/ja active Pending