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What is the difference between a heading machine and a cold heading machine, and what are the differ

Gary Young baidu 2023-11-02 14:09:54
Cold heading machines are mainly used for mass production of fasteners such as nuts and bolts

According to different industries, heading machines can be divided into shoelace heading machines and screw heading machines. In general use, it can be combined arbitrarily, and generally does not appear in an independent form. The heading machine we are talking about here refers to the screw heading machine.

The heading machine is a kind of cold heading machine, which is mainly used for roll head screws or non-standard type, so it is called a heading machine, as long as the cold heading machine is a product processing equipment, it can become a cold heading machine.

#Heading machine# belongs to the cold heading machine series. Heading machines are generally two strokes in one mold. The cold heading machine has 1 die, 2 die, 2 die, 2 die, 4 punches, and multi-station.
Secondly, the number of main punching modules is different, and the cold heading machine of two-die four-stroke screw die generally has different structures such as fixture, feeding, and through-out. How the two models are matched has nothing to do with the size of the product.

The second mode and the fourth generally use the process of large materials and small deformation, and the process of the single-mode machine is not revealed in detail. Generally speaking, the product with a large amount of deformation is matched with the two mold four, and it is very simple to use a single mold machine, but the standard for the real matching model is the forging ratio, to achieve a certain forging ratio, the two mold four is not easy to use, and there must be more stations.

Cold heading machine process

According to the theory of metal plasticity, a certain pressure is applied to the metal blank at room temperature to produce plastic transformation in the mold cavity, and it is formed according to the specified shape and size.

High-quality metal materials such as riveted steel must be selected, and their chemical composition and mechanical properties have strict standards.

There are many types and series of cold heading bolt and nut forming machinery. The equipment has reliable performance, high efficiency and stable product quality.

The product has a large forming and forging force, a large configuration power, and a large investment in equipment. Therefore, production specifications below M24 are the most economical.

The surface quality is good and the dimensional accuracy is high. Due to the presence of cold hardening during the forging process, the amount of deformation should not be too large. Reduces cracking.

The cold heading process is suitable for products with large batches and specifications to reduce costs.

At present, the relatively new varieties in China have 5-mold, 6-mold, 6-mold elongated cold heading machine, and the modern cold heading machine has increased from simple two stations to multiple stations in the past.