JPS5682144A - Clamping apparatus of workpiece for machine tool - Google Patents
Clamping apparatus of workpiece for machine toolInfo
- Publication number
- JPS5682144A JPS5682144A JP15915779A JP15915779A JPS5682144A JP S5682144 A JPS5682144 A JP S5682144A JP 15915779 A JP15915779 A JP 15915779A JP 15915779 A JP15915779 A JP 15915779A JP S5682144 A JPS5682144 A JP S5682144A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- distortion amount
- clamping force
- clamping
- distortion
- 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
- Machine Tool Sensing Apparatuses (AREA)
- Jigs For Machine Tools (AREA)
Abstract
PURPOSE: To accurately machine a workpiece without distortion by regulating the clamping force on the workpiece according to the rigidity of the workpiece.
CONSTITUTION: In a machine tool 1 which machines a workpiece 2 fixed by using a clamping means 3, the dimension of the workpiece 2 when positioned above the clamping means 3 is measured by using a measuring apparatus 4 and then the workpiece 2 is clamped with a set clamping force by the clamping means 3. The dimension of the workpiece 2 clamped with said clamping force is measured by using the measuring apparatus 4. The distortion amount of the workpiece 2 at that time is calculated to compare with the allowable distortion amount set according to the machining tolerances of the workpiece 2. A clamping force-distortion chart is calculated from dimensions of the workpiece 2 before and after it is clamped by the claming means 3, and when said distortion amount exceeds said allowable distortion amount, a clamping force by which the distortion amount is within said allowable distortion amount is calculated according to said data. Moreover, said clamping force is fed back to a clamping force regulator 5 to clamp the workpiece 2, and the distortion amount is measured again. Said operation is repeated until the distortion amount agrees with said set allowable distortion amount.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15915779A JPS5682144A (en) | 1979-12-10 | 1979-12-10 | Clamping apparatus of workpiece for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15915779A JPS5682144A (en) | 1979-12-10 | 1979-12-10 | Clamping apparatus of workpiece for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5682144A true JPS5682144A (en) | 1981-07-04 |
Family
ID=15687506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15915779A Pending JPS5682144A (en) | 1979-12-10 | 1979-12-10 | Clamping apparatus of workpiece for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5682144A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994004310A1 (en) * | 1992-08-13 | 1994-03-03 | Fanuc Ltd | Clamp method for preventing deformation of workpiece |
| WO2004022284A1 (en) * | 2002-08-14 | 2004-03-18 | Daimlerchrysler Ag | Clamping device of a fine machining device and method for carrying out the deformation-adapted fine machining of a workpiece while using the clamping device |
| WO2016194079A1 (en) * | 2015-05-29 | 2016-12-08 | 株式会社日立製作所 | Work device |
| JP2017087388A (en) * | 2015-11-16 | 2017-05-25 | トヨタ自動車株式会社 | Clamp device |
-
1979
- 1979-12-10 JP JP15915779A patent/JPS5682144A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994004310A1 (en) * | 1992-08-13 | 1994-03-03 | Fanuc Ltd | Clamp method for preventing deformation of workpiece |
| WO2004022284A1 (en) * | 2002-08-14 | 2004-03-18 | Daimlerchrysler Ag | Clamping device of a fine machining device and method for carrying out the deformation-adapted fine machining of a workpiece while using the clamping device |
| WO2016194079A1 (en) * | 2015-05-29 | 2016-12-08 | 株式会社日立製作所 | Work device |
| JPWO2016194079A1 (en) * | 2015-05-29 | 2017-06-15 | 株式会社日立製作所 | Processing equipment |
| JP2017087388A (en) * | 2015-11-16 | 2017-05-25 | トヨタ自動車株式会社 | Clamp device |
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