摘要:
A portal milling machine has an elongated machine bed (10), the longitudinal direction of which defines an X-direction (2) (machine longitudinal direction). Furthermore, the portal milling machine is provided with a portal (20) which is arranged at right angles to the X-direction and has an elongated plan form, the longitudinal direction of which defines a Y-direction (4) (portal longitudinal direction). A milling unit (50) is arranged on the portal (20) so as to be movable in a translatory manner in a first direction and a second direction transversely to the X-direction (2), and a linear guide (14, 16) which leads through the portal in the X-direction (2) and is intended for a slide (30) carrying a work mounting device (32) and movable in the X-direction (2) is attached to the machine bed (10). In plan form, a part of the machine bed (10) projects beyond the portal (20) in the X-direction (2) at least on one side. The machine bed (10), with regard to the portal (20), is offset in the Y-direction (4) toward one longitudinal end of the portal (20) in such a way that, in the region of the angle enclosed between the projecting machine bed part and the portal (20), good accessibility to the working region of the machine in the region of the portal center is ensured from the other longitudinal end of the portal (20).
摘要:
A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295, 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for holding the second part of the first pair of parts, has a first base part to which a first part of a second pair of parts which is formed from the spindle means (95, 195, 295, 395) and the retaining element is attached. The movement device furthermore comprises a second base part, and at least one of the two base parts can be moved in a straight line with respect to the other along a linear guide with a first translational degree of freedom. A support for bearing the second part of the second pair of parts is coupled to the second base part to be able to swivel by means of a swivel joint around a swivel axis which is located at right angles to the linear guide such that the second part of the second pair of parts can be moved by actuating the swivel joint with a second translational degree of freedom on a circular path. The reaction forces and moments which are formed in the machining of the workpiece with the tool are accommodated by the swivel joint which is made stiff; this makes it possible to make the drive means for actuating the swivel joint lightweight. The movement device as claimed in the invention is relatively simple to produce, dynamic and moreover has a high ratio of useful working space to the required construction space.
摘要:
A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for holding the second part of the first pair of parts, has a first base part to which a first part of a second pair of parts which is formed from the spindle means (95, 195, 295, 395) and the retaining element is attached. The movement device furthermore comprises a second base part, and at least one of the two base parts can be moved in a straight line with respect to the other along a linear guide with a first translational degree of freedom. A support for bearing the second part of the second pair of parts is coupled to the second base part to be able to swivel by means of a swivel joint around a swivel axis which is located at right angles to the linear guide such that the second part of the second pair of parts can be moved by actuating the swivel joint with a second translational degree of freedom on a circular path. The reaction forces and moments which are formed in the machining of the workpiece with the tool are accommodated by the swivel joint which is made stiff; this makes it possible to make the drive means for actuating the swivel joint lightweight. The movement device is relatively simple to produce, dynamic and moreover has a high ratio of useful working space to the required construction space.
摘要:
A method for the manufacture of filters in which a filter material in the rm of a continuous web is pre-embossed, perforated with a laser beam, and then pleated. The pleated filter element is fixed in a subsequent operation in an apparatus and the perforated scrap areas and are removed from the filter element.
摘要:
A multiple-spindle unit capable of being mounted onto an otherwise standard spindlehead in a tool machine. The multiple-spindle unit is driven by the spindle of the tool machine. A changing arm is utilized for connecting the drive member for the multiple-spindle unit to the spindle of the tool machine and thereafter the multiple-spindle unit is mounted on the spindlehead.
摘要:
A heat exchanger, particularly for a heating or air conditioning system for motor vehicles, includes at least one inlet channel and at least one outlet channel and at least one collector, which has at least two metal sheets or plates abutting each other, and a flow device through which a first medium can flow, while a second medium can flow around the flow device. The first medium is distributed by an inlet channel to the collector and to the flow device and can be conducted to an outlet channel, and at least one further channel for distributing the coolant is provided, which is connected in a communicating manner via at least one opening to the inlet channel.
摘要:
A motor vehicle having interconnected outer skin components and a method for connecting outer skin components is provided. In cutting off damaged outer skin components and replacing same, in a connected state of the two outer skin components, a reinforcing component is arranged on an inner surface of each of the two outer skin components via an adhesive. This results in a two-layer construction at the joint between the two outer skin components.
摘要:
The present invention relates to a process for the production of fine chemicals, in particular vitamin E, vitamin K and/or ubiquinone by culturing organisms, in particular plants, whose shikimate pathway is genetically modified over that of the wild type, and to the transgenic organisms themselves.
摘要:
An operating element for a vehicle steerable with a handlebar, in particular a motorcycle, having an operating ring in the area of a handle of the handlebar. The operating ring can be adjusted in multiple degrees of freedom, i.e., it can be rotated, shifted and depressed. Therefore, it can be used multifunctionally for triggering various functions in the vehicle.
摘要:
The present invention relates to a process for the production of fine chemicals, in particular vitamin E, vitamin K and/or ubiquinone by culturing organisms, in particular plants, whose shikimate pathway is genetically modified over that of the wild type, and to the transgenic organisms themselves.