Nut skirt automatic lock riveting machine

Abstract

The utility model relates to an automatic locking riveting machine for nut skirts, which is used for locking riveting and anti-loosening of high-torque skirt nuts in axle assemblies. The piston rod of the gas-liquid supercharging mechanism is connected with the pull rod, which has a pull pin rod, which penetrates into the chute of the lock riveting head, the axis of the chute and the axis of the pull rod form a certain angle, and the nut is positioned in the positioning device . The pulling force generated by the gas-liquid supercharging mechanism of the present invention acts on the pull rod, so that the lock riveting cutter head moves around the pull pin rod, and the automatic pressure is applied to cause plastic deformation of the nut skirt to realize the lock riveting function of the nut; and through the detection rod Trigger the detection element to control the deformation of the locking riveting point of the locking riveting head to the nut skirt. The invention can accurately control the deformation of the locking riveting point, which can effectively avoid the cracking of the locking riveting point of the nut skirt due to the increase of the deformation, and also avoid the phenomenon of unreliable locking of the nut due to insufficient deformation of the locking riveting point. Therefore, the nut skirt of the locking riveting point achieves an ideal locking riveting effect, which ensures the fastening and anti-loosening function of the locking riveting point to the nut, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a device for automatically locking and riveting the skirt of a skirt nut. Background technique [0002] Most of the matching parts of the automobile axle assembly are fastened with bolts and nuts. However, in the operation of the whole vehicle, the loosening of bolts and nuts is not easy to be found in time, and the phenomenon that the vehicle cannot run normally caused by it is relatively common, which brings relatively large economic losses and negative social impacts to automobile axle manufacturers. [0003] At present, spring washers and fastening glue are generally used to prevent loosening of nuts in automobile axle assemblies. The skirt is deformed and locked to improve the reliability of the large torque nut against loosening. However, due to the structural reasons of the nut skirt, the skirt of the nut is usually locked and riveted by manual punching ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiency of manual nut riveting in the prior art, the object of the present invention is to provide an automatic nut skirt riveting machine, which uses automatic pressure on the nut skirt riveting points to make it plastically deformed, and The deformation of the locking riveting point is controlled by the detection element, so that the nut skirt of the locking riveting point can achieve an ideal locking riveting effect, so as to ensure the manufacturing quality of the axle assembly and reduce the production cost

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