Novel extrusion process for hexagonal shouldered self-locking nut

A technology of self-locking nuts and hexagonal strips, which is applied in the direction of nuts, threaded fasteners, connecting components, etc., can solve the problem of unstable flat dimensions of hexagonal shoulder self-locking nuts, failure to ensure product quality, and product self-locking torque Difficult to guarantee and other problems, to achieve the effect of dimensional stability, thread prevention, and adjustable action time

Inactive Publication Date: 2012-07-11
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the flattening process of the hexagonal shoulder self-locking nut is completed on the hydraulic press, which requires specially designed tooling for flattening. After processing, the flat dimension L3 of the hexagonal shoulder self-locking nut is unstable (the deviation reaches L3±0.2), and the product’s self-defense The locking torque is difficult to guarantee, the product quality cannot be well guaranteed, and the processing time is long (each extrusion processing time is about 40 seconds), and the production efficiency is low

Method used

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  • Novel extrusion process for hexagonal shouldered self-locking nut
  • Novel extrusion process for hexagonal shouldered self-locking nut
  • Novel extrusion process for hexagonal shouldered self-locking nut

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] A new type of flattening process for hexagonal shoulder self-locking nuts, the steps are as follows:

[0023] 1) Process the active thread rolling wheel 2 and the driven thread rolling wheel 1 used to process the required plane; prepare the positioning block 4 that meets the processing requirements; use the active thread rolling wheel 2 and the driven thread rolling wheel 1 to process and process the required plane, which means that the driving thread rolling wheel 2 and the driven thread rolling wheel 1 are processed by a surface grinder to grind a plane that matches the axial size of the extrusion head, which is easy to operate during extrusion , to prevent threads from being formed on the flattened surface, and the dimension is more stable after flattening.

[0024] 2) According to the axial dimension of the squeezed head of the hexagonal sho...

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Abstract

The invention discloses a novel extrusion process for a hexagonal shouldered self-locking nut, which includes the steps: 1 treating a used driving cylindrical die roll and a used driven cylindrical die roll to process a needed plane, and preparing a positioning block meeting processing requirements; 2 mounting the driving cylindrical die roll, the driven cylindrical die roll and the positioning block on a thread rolling machine according to the axial size of an extruded head of a product drawing for hexagonal shouldered self-locking nut; and 3 turning on a translation button of the thread rolling machine, adjusting feed of the thread rolling machine according to the extrusion process for the hexagonal shouldered self-locking nut determined by the product drawing, and extruding the hexagonal shouldered self-locking nut. By the aid of the novel extrusion process, extrusion size deviation is changed from L3+ / -0.2 of machining through a past oil press into L3+ / -0.05 of machining through a current oil press, stability of product quality is ensured, and single piece extrusion time is changed from 40 seconds of the past oil press into 10 seconds of the current oil press, so that production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a novel extrusion and flattening process of a hexagonal shoulder self-locking nut. Background technique [0002] At present, the flattening process of the hexagonal shoulder self-locking nut is completed on the hydraulic press, which requires specially designed tooling for flattening. After processing, the flat dimension L3 of the hexagonal shoulder self-locking nut is unstable (the deviation reaches L3±0.2), and the product’s self-defense The locking torque is difficult to guarantee, the product quality cannot be well guaranteed, and the processing time is long (the processing time of each extrusion is about 40 seconds), and the production efficiency is low. Contents of the invention [0003] The purpose of the present invention is to overcome above-mentioned deficiencies in the prior art, provide a kind of hexagonal shoulder self-locking nut novel extruding flattening process, this technique can make the extruding size L3 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/70
Inventor 刘伟林峰韩勇
Owner SINO TRUK JINAN POWER
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