JPS6440214A - Thread cutting method by nc lathe - Google Patents
Thread cutting method by nc latheInfo
- Publication number
- JPS6440214A JPS6440214A JP19258587A JP19258587A JPS6440214A JP S6440214 A JPS6440214 A JP S6440214A JP 19258587 A JP19258587 A JP 19258587A JP 19258587 A JP19258587 A JP 19258587A JP S6440214 A JPS6440214 A JP S6440214A
- Authority
- JP
- Japan
- Prior art keywords
- thread cutting
- feed
- point
- thread
- reference point
- 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
Landscapes
- Turning (AREA)
Abstract
PURPOSE:To make it possible to change the number of revolutions of a main spindle depending upon whether rough thread cutting or finish thread cutting is to be performed by providing a rotational reference point on the main spindle system of a lathe or on a workpiece, and further by setting a feed reference point based on the difference in angle measured from the rotational reference point to a thread cutting start point. CONSTITUTION:A thread cutting start point 3 is apart from a rotational reference point 7 by theta in angle. Based on this angular difference the reverse distance is corrected to set a reference distance L2, and the point B is set as a feed reference position. And, based on the reference distance L2 displayed on a display unit 38, a carriage 13 is moved so that the cuter edge 17 is placed in the feed reference position B. And the thread cutting work is commenced, meanwhile the feed of the carriage 13 is started by receiving the detected signal of the rotational reference point 7. The feed speed is equal to a set speed. Then the cutter edge 17 advances the reference distance L2 to reach the position A, and further advances to coincide with the thread cutting start point 3. And, the cutter edge 17 moves exactly along and on the rough thread having been previously cut to finish the thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19258587A JPS6440214A (en) | 1987-08-03 | 1987-08-03 | Thread cutting method by nc lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19258587A JPS6440214A (en) | 1987-08-03 | 1987-08-03 | Thread cutting method by nc lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6440214A true JPS6440214A (en) | 1989-02-10 |
Family
ID=16293728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19258587A Pending JPS6440214A (en) | 1987-08-03 | 1987-08-03 | Thread cutting method by nc lathe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6440214A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992007684A1 (en) * | 1990-10-29 | 1992-05-14 | Fanuc Ltd | Method of working polygon |
| CN105710460A (en) * | 2014-12-05 | 2016-06-29 | 苏州道森钻采设备股份有限公司 | Whole thread tooth starting method |
| CN106424981A (en) * | 2016-10-27 | 2017-02-22 | 上海新力动力设备研究所 | Novel method for accurately positioning thread of engine casing |
-
1987
- 1987-08-03 JP JP19258587A patent/JPS6440214A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992007684A1 (en) * | 1990-10-29 | 1992-05-14 | Fanuc Ltd | Method of working polygon |
| EP0506978B1 (en) * | 1990-10-29 | 1994-12-14 | Fanuc Ltd. | Method of working polygon |
| CN105710460A (en) * | 2014-12-05 | 2016-06-29 | 苏州道森钻采设备股份有限公司 | Whole thread tooth starting method |
| CN106424981A (en) * | 2016-10-27 | 2017-02-22 | 上海新力动力设备研究所 | Novel method for accurately positioning thread of engine casing |
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