Production process of rail spikes

Abstract

The invention discloses a production process method for a rail spike, comprising the following steps of: (1) blanking; (2) heating; (3) pre-forging and forming in a pre-forging die; (4) final-forging and forming in a final-forging die, placing a Z-shaped or C-shaped blank in a corresponding final-forging die, and forging and forming under the pressure action of a press machine or a punch press; and (5) placing the finally-forged blank in a punching-blanking die, locating by the large ends of the spike heads of two products, and punching the two products under the pressure action of the punch press or a blanker to form a final product. In the invention, the pre-forging die, the final-forging die and the punching-blanking die are utilized; the middle blank and the final formed spike are formed in the dies, and the precision is greatly increased; the spikes of different batches have a less quality fluctuation and a more stable quality respectively; the production efficiency is greatly increased, the production cost is decreased, and the labour intensity of workers is decreased by utilizing a mechanized device.

Description

technical field [0001] The invention relates to a processing method for auxiliary components of railway and mine tracks, that is, a production process for track spikes. Background technique [0002] On railways and mining tracks, spikes are needed to connect the vertical track and the horizontal sleepers into one body, so as to transfer the gravity and impact force of the railway vehicle to the sleepers, and then to the roadbed, so that the vehicles can be safely on the track. Therefore, spikes are important safety components on railways and mine tracks, and are directly related to the normal running of railway vehicles. A typical structure of road stud, see figure 1 As shown, it is composed of interconnected nail head big end 11 and nail tip 12 extending obliquely. The nail head big end 11 is thicker and serves as the force-bearing end when nailing, and bears the knocking force of a hammer. The nail tip is 12 nails. Into the sleeper and the track and the sleeper are c...

AI Technical Summary

Problems solved by technology

In the prior art, the production method of road studs is relatively primitive, similar to the forging processing method of "forging iron", and its main shortcomings are reflected in the following aspects: 1. The labor intensity of workers is heavy, which belongs to heavy physical labor; Today, with the gradual shortage, workers are unwilling to engage in this kind of work, and it is difficult to recruit workers even if the salary is improved; 2. The production efficiency is low, usually one product and one product are processed separately, and the unit labor time required to process one product is relatively short. Long, low production efficiency; the production cost of each product has increased accordingly; 3. The product quality is unstable, fluctuates greatly, and the precision is low; not only the quality fluctuates greatly between different batches of products, but also the same batch of products There is also a large difference in quality between them, and there are also large differences between the products produced by the same worker within a day; 4. The working environment is poor, which has adverse effects on the physical and mental health of workers, and also has a certain degree of pollution to the environment.

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