Riveter for self-plugging rivets

Abstract

The invention discloses a riveter for self-plugging rivets. The riveter comprises a riveter body, a power mechanism, a rivet feeding mechanism and a control mechanism, wherein the riveter body comprises a shell, a rivet outlet chuck module, a core rod drawing chuck module and a transmission module. The invention has the advantages that: a core rod ejector rod with a piston structure is matched with a slope cone of the rivet outlet chuck module, and a rivet is stably pushed in and is locked; due to the adoption of a self-loosening clamping jaw and a clamping jaw ejector rod with a piston structure, clamping holes are positioned in a normally automatic open state, are convenient to control, and are safe and efficient; and a piston cylinder is divided into a tail piston cylinder and a middle piston cylinder so as to adapt to power with different strengths, high-pressure hydraulic power is adopted in the process of drawing the rivet, only low-pressure air pressure power is required for transmission, the energy consumption is reduced, the cost of the equipment is reduced, and an application range of the equipment to specifications of the rivets is widened further under the condition that a certain pressure device is provided.

Description

technical field [0001] The invention relates to automatic mechanical equipment, in particular to a device for automatic installation of blind rivets. Background technique [0002] Blind rivets are a kind of rivets used for single-sided riveting, which must be riveted with a special tool riveting gun. When riveting, the rivet mandrel is pulled by a special riveting gun to expand the riveting body and play the role of riveting. This type of rivet is especially suitable for riveting occasions where it is inconvenient to use ordinary rivets (riveting must be done from both sides), so it is widely used in construction, automobiles, ships, aircraft, machines, electrical appliances, furniture and other products. [0003] The commonly used special riveting guns are mostly manually operated, and their work efficiency is low and the quality of riveting is affected by human factors. Obviously, it cannot meet the needs in fields that require high surface accuracy and a large workload. ...

AI Technical Summary

Problems solved by technology

However, the design of the riveting device with this structure is not conducive to more stable work in the design of the rivet output chuck module, mandrel chuck module and power mechanism, as follows:

[0004] 1. When the rivet protrudes from the rivet chuck, it relies on the air pressure of the nail feeding device to knock the high-speed moving rivet away from the elastic chuck and snap it into the chuck. This may not only cause deformation of the rivet head, but also affect the service life of the chuck;

[0005] 2. The design of the rivet jaws, loosening and tightening all depend on the action of the internal cylinder. The linkage control of the air is highly demanding and the structure is complex, and more sensor assistance is needed to achieve precise movement coordination;

[0006] 3. The air pipe that provides pneumatic power for the gripper needs to expand and contract with the movement of the gripper. During use, it is not conducive to the assembly of the mechanical arm and will substantially affect the design of the automated assembly line;

[0007] 4. The forward and backward of the jaws are driven by hydraulic cylinders, which have high energy efficiency and will relatively affect work efficiency

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