Electric quick-changing clamp and method for quickly changing tool

Abstract

The invention discloses an electric quick-changing clamp which comprises a mechanical arm assembly connected with a mechanical arm and a tool end assembly connected with a tool. The mechanical arm assembly comprises a mechanical arm mounting flange, a linear motion mechanism with a power-off self-locking function, a fixing pin, a clamping jaw and a plurality of conductive spring ejector pins; and the tool end assembly comprises a conducting ring, a tool end mounting flange and a linear motion bearing. According to the electric quick-changing clamp and the method for quickly changing the tool provided by the invention, the main principle is that the mechanical arm end assembly and the tool end assembly are fixed in the axial direction through the clamping jaw, the fixing pin is pushed through an electric push rod to conduct fixing in the circumferential direction, quick positioning is conducted through a circular ring in the middle of the clamping jaw, and the conductive spring ejector pins make contact with a conductive ring so as to supply power to the tool and control signals.

Description

technical field [0001] The invention relates to the field of fixture machinery and fixture use methods, in particular to an electric quick-change fixture and a method for quickly changing tools. Background technique [0002] In recent years, with the increasing pressure of transformation and upgrading of my country's manufacturing industry and rising labor costs, more and more companies are considering replacing workers with machines. On the other hand, the current consumer demand for individualization is becoming more and more intense, and elements such as different configurations and appearance characteristics determine that the manufacturing industry must adopt flexible manufacturing technologies. Flexible manufacturing technology uses robots and quick tool changers to manufacture different products on the same assembly line. Robotic arms are not currently used in fixed places such as factories, but are also used in mobile fields and high-altitude operations. The robot ...

AI Technical Summary

Problems solved by technology

Publication No. CN111215941A patent "A Pneumatic Quick-Change Fixture" and publication No. CN107443410A "Robot Arm, Jaw Quick-Change Device and Quick-Change Fixture Structure" mainly relate to pneumatic quick-change fixtures; but pneumatic quick-change fixtures High-pressure air source is required, which is more suitable for use in factories and other places where there is an air source and the robot arm is fixed. If the robot arm needs to be moved, an air compressor or air pipe must be installed on the device to use the pneumatic quick-change fixture, which is inconvenient to use. , so the pneumatic quick-change clamp has the disadvantages of limited use scenarios, and the inconvenient long-distance movement of the mechanical arm.

The authorized announcement number is CN207139830U "Quick-change Fixture and Quick-change Fixture Device" mainly involves magnetic quick-change fixtures; however, magnetic substances such as iron filings are diffused in the air. When the magnetic substances are adsorbed on the electromagnet, the electromagnet and the adsorption plate When there is a gap, the suction force of the electromagnet drops rapidly, and when it can no longer absorb the adsorption plate, the tool will fall off, so the magnetic quick change clamp has the disadvantages of being unsafe and unreliable; and the magnetic field generated by the magnetic material will interfere with the surrounding electrical equipment Affect the normal use of the equipment

[0004]In order to solve the above problems, it is urgent to invent an electric quick-change fixture and a method for quickly changing tools, so as to solve the limitation of the use scene of the existing pneumatic quick-change fixture and the magnetic Problems such as unsafe and unreliable shortcomings of quick-change fixtures

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