Precise positioning of high-speed robotic arm

Abstract

A high-speed mechanical arm with a precise positioning function comprises a motor, a driving part, a rack and a sliding block, wherein a sliding slot is arranged on the rack, the sliding block is arranged in the sliding slot and is driven by the driving part to move along the sliding slot. The mechanical arm is characterized in that the driving part comprises a winding drum and a steel wire rope wound on the winding drum, a threaded groove is arranged on the winding drum, the steel wire rope is coiled in the threaded groove and is arranged between the winding drum and the sliding slot to form a revolving loop, and a section, which is arranged in the sliding slot, of the steel wire rope is fastened with the bottom of the sliding block. The winding drum with the threaded slot is driven by utilizing a servo motor, the steel wire rope is precisely wound and unwound from the winding drum, namely, when the winding drum rotates for a turn, the linear distance that the steel wire rope moves is converted from the perimeter of the winding drum, under the same rotating speed, the speed of the steel wire rope is much higher than the speed of a screw nut pair, which is characterized in that the linear distance converted from the screw pitch, and the positioning and control on the sliding block are realized through controlling the rotating speed and the start and stop of the rotation precisely by the servo motor.

Description

【Technical field】

[0001] The invention relates to the field of automation equipment, in particular to a high-speed mechanical arm device of a single-axis linear module. 【Background technique】

[0002] The mechanical arm is used in process automation, partially replacing manual operation, and can complete the transfer and loading and unloading of workpieces according to the requirements of the production process, following certain time and position rules, and can complete long-distance high-speed transportation, and requires accurate positioning and adjustable speed control. High degree, such as the delivery, positioning and assembly of parts in the assembly line of large machinery, the driving device of the high-speed camera installed on the side of the short runway of the stadium, are all applications of high-speed robotic arms. The robotic arms currently produced and used generally use rolling There are two transmission methods: nut-screw and synchronous belt. The rolling ...

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