Spindle supporting box structure, a damping structure, a gas supply related device, and a balance cylinder gas actuated device for machine tools
US5988959A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Oct 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309688
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A spindle supporting box structure, wherein longitudinal parts forming both ends of lateral parts at each of right and left longitudinal side faces facing, with a spindle therebetween, in a direction almost perpendicular to longitudinal side faces facing in a front-back direction are formed by longitudinal tubular members having suitable flexural rigidity. A damping structure wherein required frameworks of structures are formed by tubular members and wherein concrete is filled in the tubular members and then solidified. As an alternative, a powdery damping material or a jelly damping material is airtightly sealed in the tubular members. An inner space of one or more of the tubular members is made into a gas pressurized tank wherein a balance cylinder is connected to the gas pressurized tank and wherein the gas in the gas pressurized tank directly acts on a cylinder chamber of the balance cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.