Servo pressing device for riveting process by industrial robot

Abstract

The invention relates to a servo hold-down device for riveting machining of an industrial robot. The servo hold-down device is characterized by comprising a C-shaped clamp, a housing, a motor, a transmission structure, a first lead screw, a roller screw pair and a punch; the C-shaped clamp is composed of an upper arm, a longitudinal arm and a lower arm; the upper arm and the lower arm are mounted at the two ends of the longitudinal arm, respectively; the housing is mounted on the upper arm of the C-shaped clamp; the motor and the transmission structure are mounted on the housing, respectively; an output shaft of the motor is connected with an input end of the transmission structure; the first lead screw is rotatably arranged within the housing, and the top of the first lead screw is connected with an output end of the transmission structure; the roller screw pair sleeves an upper portion of the first lead screw and moves axially along with the rotation of the first lead screw; the punch is inserted in the housing in such a manner of moving axially, and a top end of the punch is fixedly connected with a bottom end of the roller screw; an extrusion end of the punch extends out of the housing and is located between the upper arm and the lower arm. The servo hold-down device for riveting machining of the industrial robot has the advantages of good hold-down force, good movement flexibility, reduction of noise produced during riveting, compact structure, small volume and convenient operations.

Description

technical field [0001] The invention relates to a servo pressing device used for riveting processing by an industrial robot. Background technique [0002] Riveting is a commonly used material joining process. It can join two or more layers of materials of different materials, different thicknesses, different hardnesses and different strengths. It has the advantages of large material adaptability, high connection strength, no smoke and dust pollution, etc. However, traditional riveting equipment generally uses asynchronous motors, hydraulic cylinders (such as the invention patent of CN 101288895 A) or gas-hydraulic pressurized cylinders (such as the invention patent of CN 104285065 A) to provide pressing force, and there is movement Poor flexibility, high riveting noise, oil pollution, heavy equipment and other problems. [0003] With the development of AC servo drive technology and industrial robot technology, how to use the high flexibility of industrial robots and the con...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of manual feeding of existing hydraulic machines, and provide a servo pressing device for riveting processing of industrial robots. The device has good pressing force, good movement flexibility, can reduce the noise generated by riveting, and has a compact structure , small size, easy to operate

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