An internal grasping device of an electric manipulator based on a rack and pinion and a crank connecting rod
An electric manipulator, crank connecting rod technology, applied in the field of machinery, to achieve the effect of reducing the overall cost, simple and compact mechanism, and simple operation
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Embodiment 1
[0018] like figure 1 As shown, an electric manipulator internal grasping device based on a rack and pinion and a crank connecting rod includes a screw 1, on which a nut 2 cooperating with it is installed, and the nut 2 is arranged at equal intervals along its outer peripheral surface There are two racks 3 parallel to the screw rod 1, which are symmetrically arranged on both sides of the nut 2, each rack 3 is provided with a gear 4 meshed with it, and each gear 4 is hinged with Crank connecting rod 5, the end of described crank connecting rod 5 is connected with grasping pressure head 6, and described screw rod 2 is driven by reduction motor 8.
[0019] The electric energy drives the reduction motor 8 to rotate in the forward direction, and the rotating reduction motor 8 drives the screw rod 1 connected to it to rotate in the forward direction, and the screw rod 1 drives the nut 2 and the left and right racks 3 connected to the nut 2 to move upward. The left and right gears 4 ...
Embodiment 2
[0023] An electric manipulator internal grasping device based on a rack and pinion and a crank connecting rod, comprising a screw 1, on which a nut 2 cooperating with the screw 1 is installed; The racks 3 parallel to the screw rod 1, the three racks 3 are arranged on the outer peripheral surface of the nut 2 at intervals of 120°, and each rack 3 is provided with a gear 4 meshing with it, so Each gear 4 is hinged with a crank connecting rod 5 , and the end of the crank connecting rod 5 is connected with a grasping pressure head 6 , and the screw rod 2 is driven by a reduction motor 8 .
[0024] The only difference between this embodiment 2 (not shown) and embodiment 1 is that there are three racks 3 arranged along the outer peripheral surface of the nut 2 at an angle of 120° to each other, so as to facilitate the three-point support for the cylindrical workpiece , to achieve fixation, thereby expanding the range of use of the internal grabbing device, the principle is the same ...
Embodiment 3
[0026] An electric manipulator internal grasping device based on a rack and pinion and a crank connecting rod, comprising a screw 1, on which a nut 2 cooperating with the screw 1 is mounted, and on the nut 2 there are four and The racks 3 parallel to the screw 1, the four racks 3 are arranged on the outer peripheral surface of the nut 2 at intervals of 90°, and each rack 3 is provided with a gear 4 meshing with it, so Each gear 4 is hinged with a crank connecting rod 5 , and the end of the crank connecting rod 5 is connected with a grasping pressure head 6 , and the screw rod 2 is driven by a reduction motor 8 .
[0027] The only difference between this embodiment 3 (not shown) and embodiment 1 is that there are four racks 3 arranged along the outer peripheral surface of the nut 2 at an angle of 90° to each other, which is convenient for realizing four racks for larger square workpieces. The points are symmetrically supported to achieve fixation, thereby expanding the scope of...
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