robotics Designing the Mechanisms for Automated Machinery Part 6 pdf

... 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...

Ngày tải lên: 10/08/2014, 02:21

... addition, the force F rotates the roller with moment of inertia /. Therefore, the equilibrium equation of forces takes the form where a = the linear acceleration of the weight ... when, for instance, the force of gravity acts on the mass driven by the spring. This is the situation which occurs in Figure 2. 16 where the spring 9 lifts the...

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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 ... known to the designer, together with the means to reduce the harm these restrictions cause. The main restriction is the pressure angle. This is the ang...

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... 9. The barrel and the manipulator act in the following sequence. The barrel 6 rotates to the required position, and then the gripper of the device 7 picks up the item. For ... 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-th rotor wh...

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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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... 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 ... working for 0.1 second; find the distance the mass m l travels in this time. At the beginning of the process the motor is at rest. Answer the same questio...

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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...

Ngày tải lên: 10/08/2014, 02:21

... 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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... completeness. TEAM LRN 2 86 Functional Systems and Mechanisms screws into the washers during their movement. When the screw and washer come to the end of their travel they rest against the threaded ... conditions for the penetration of pin 2 into the hole of part 1 are improved. Of course, the amplitude of vibration, the speed of relative displac...

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... proportional to the torque the link develops. Thus, Then the weight P m of the link between joints m and (m + 1) is 6. The sum of the torques Tfor all n drives (n = the number of ... 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 the...

Ngày tải lên: 10/08/2014, 02:21