Robotics 2 E Part 2 pptx

... selected. (Because resistance welding depends on the specific electrical resistance of the materials being treated, bronze obviously has a lower resis- tance than steel. The lower ... size of the rollers and the intervals between them will influence the quality of the sheet: the smaller the rollers and the smaller the intervals between them, the smaller ... pr...

Ngày tải lên: 11/08/2014, 21:22

... opposite partition E, which has two channels 1 and 2. The pressure difference between these channels depends upon the position of the edge of the nozzle D relative to the inlets of ... i m 2 FIGURE 3E- 4a) the time needed to achieve a speed of the piston V= 2m/sec when the height of the mass increases; find the distance travelled by the piston. At th...

Ngày tải lên: 11/08/2014, 21:22

... into special vessels, keeping the vessels upright, and putting them in definite places. Both FIGURE 1.10. Kinematic example of a three- degrees-of-freedom teleoperator (see Figure 1.9). 12 ... prob- lems being tackled in the development of modern robotics. Sensitive elements able to gauge the forces, texture, or response of objects to be handled have still to be...

Ngày tải lên: 11/08/2014, 21:22

... devices). Rigorously coordinated displacements between remotely located elements are problematic. Spatially oriented displacements of different elements require specially costly means. ... serve to prevent collisions between tools or between kinematic elements and when precisely defined can be reduced. Reducing the auxiliary times can be a very effective way of raising...

Ngày tải lên: 11/08/2014, 21:22

... pressure in the receiver 1, T r = absolute temperature of the air in the receiver, 3.3 Electric Drives 87 and its expansion into a Fourier series becomes where r is the torque ... drive, one which must reduce the speed of a moving element until complete cessation of movement of the element is achieved, i .e. , a brake system. Such a mechanism must be able...

Ngày tải lên: 11/08/2014, 21:22

... the system via either a special spring or the membrane itself. The higher the measured forces, pressures, or acceleration, the less accurate are the measured values. However, ... temperature t Q , and after it passes the heater its temperature rises to the value (t 0 + At). These temperatures are registered by thermoresistors (or other temperature ... pe...

Ngày tải lên: 11/08/2014, 21:22

... usually designed so as to be close to res- onance conditions. However, this makes the feeder very sensitive to minor differences between the excitation and natural frequencies. These ... otherwise shaped, identical ends (examples 2, 3,7). These parts have only one degree of freedom orientation. Indeed, one must bring the symmetry axis of the part in line with o...

Ngày tải lên: 11/08/2014, 21:22

... flat details due to the difference between the center of mass and the geometric center. 27 0 Feeding and Orientation Devices FIGURE 7.53 Active orientation of needle-like details. FIGURE ... to its other side. Thus, every part is handled and sooner or later achieves the desired orientation. Often the difference between the geometrical center and the center...

Ngày tải lên: 11/08/2014, 21:22

... figure). The interactions between these fields move the rings together in the manner shown in part d) of Figure 8 .28 until they come into the assembled state, as in part e) . The ... assembling, use either cases c) or d), where the design is symmetrical, or case e) , where the asymmetry is emphasized to make the difference A large enough for conveni...

Ngày tải lên: 11/08/2014, 21:22