Linear drive
AssigneeFraunhofer-Gesellschaft zur Forderung der angewandten Forderung e.V.
InventorsRainer Nestler, Jan Konvicka, Frank Wieland
Life of this patent
Estimating the term…
Abstract
A linear drive which is particularly suitable for drive axles of parallel structures such a hexapod arrays, comprises a carrier housing (5) and a carrier (4) that can be moved lengthwise in relation to said carrier housing, both the carrier housing and the carrier having provided thereon drive elements (11, 6) such as electrical coils or magnets. In order to achieve a highly dynamic drive performance, the carrier takes the form of a lightweight profiled body with an open cross-sectional profile. The drive elements (6, 11) on the carrier side and on the housing side, respectively, are preferably provided within the open areas of the cross-sectional profile.
Claims12
A hexapod machine tool, comprising:
- (a) a support;
- (b) a plurality of adjustable-length angularly arranged struts (1) connected with said support, each of said struts including;
- (1) a housing (5) having a first end containing a chamber;
- (2) a tool carrier (4) connected for linear movement within said housing chamber, said carrier having a double-T cross-sectional profile;
- and
- (c) detecting means for detecting the position of said carrier relative to said housing, comprising:
- (1) mark means (12) carried by an outer side of said carrier;
- and
- (2) measuring head means (13) mounted on said housing opposite said mark means.
A hexapod machine tool, comprising:
- (a) a support;
- (b) a plurality of adjustable-length angularly arranged struts (1) connected with said support, each of said struts including:
- (1) a housing (5) having a first end containing a chamber;
- (2) a tool carrier (4);
- (3) guide means (8) connecting said carrier for linear movement within said housing chamber, said guide means including a fixed bearing on one side of said carrier, and a movable bearing on another side of said carrier;
- and
- (c) detecting means for detecting the position of said carrier relative to said housing, comprising:
- (1) mark means (12) carried by an outer side of said carrier;
- and
- (2) measuring head means (13) mounted on said housing opposite said mark means.
A hexapod machine tool, comprising:
- (a) a support;
- (b) a plurality of adjustable-length angularly arranged struts (1) connected with said support, each of said struts including;
- (1) a housing (5) having a first end containing a chamber;
- (2) a tool carrier (4) connected for linear movement within said housing chamber;
- (c) detecting means for detecting the position of said carrier relative to said housing, comprising:
- (1) mark means (12) carried by an outer side of said carrier;
- and
- (2) measuring head means (13) mounted on said housing opposite said mark means.
Dependencies are inferred from the claim text.