robotics Designing the Mechanisms for Automated Machinery Part 11 pps

... located on the base and transmissions transferring the motion to the corresponding links. them. To calculate the coordinates of point A (the gripper or the part the manipulator deals ... the drives are actuated; • The power or force that every drive develops depends on the place it occupies in the kinematic chain of the device. The closer...

Ngày tải lên: 10/08/2014, 02:21

... stops: at the first it obtains the item from the lever 9, at the second the leads of the electronic item are prepared for assembling by the device 11, and at the third the actual ... length of the arc where the product is handled for the n-th rotor, r n = the radius of the «-th rotor, and (f) n - the angle of the arc of the n-...

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... will influence the quality of the sheet: the smaller the rollers and the smaller the intervals between them, the smaller the deflection of the sheet. From the idea of reducing the size ... 9.1.) The other side of the problem is the choice of the strategy for designing a pathway for such a vehicle. As an aid in clarifying this speci...

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... sections of the magnetic circuit, the pulling force developed by the magnet, the influence of the air gap, and the speed of motion of the armature. The initial data for these computations ... as: where/= the dry friction coefficient and m is the mass of the rod. In addition, the force F rotates the roller with moment of inertia /. Theref...

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... the driven one. For the four-slot Geneva cross shown on the right side of the figure, this occurs only for 90° of the rotation of the driving link; during the remainder of the ... sought in the harmonic form. Thus, Substituting the harmonic form in the homogeneous variant of Equation (3.154) we obtain The partial solution can then be soug...

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... is presented. The thicker line shows the calculated curve, while the thin line shows the real data for the acceleration of the follower. Obviously, the higher the rotational speed of the ... 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 the channels. (Th...

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... the AD (damping takes about 10 sec). force is applied to the mass M. Obviously, the bigger the mass of the armature 4, the bigger the force. The core 4 is fastened to the ... excitation force is applied, i.e., P = 0. For this case the equations for the mass movements are The solutions are in the form To find the natural frequencies...

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... there if the gap between this gauge 4 and the partition wall 3 is smaller than the part. In this case pusher 1 lifts the part to the upper lever, where the part rolls to the ... detector 2b check for part 2 in the assembly. When either or both parts are not in the right positions the sensors will actuate some system to stop the machine, pr...

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... from the flow of parts on the tray. The design of these devices depends, of course, on the shape of the part they must handle. The rough estimation of the moving time along the ... describe the displace- ments of the knife by the following expression: Thus, the acceleration a here has the form and the maximum value of the acceleration a^...

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... certain rotating speed for the drill and also the torque required for cutting the material. An axial force must also be developed for feeding the drill. Thus, the device consists ... completing the task by spring 11. The resolved force vectors are shown in the diagram attached to the design. One can easily see how the relatively small fo...

Ngày tải lên: 10/08/2014, 02:21