What are the advantages of using a cold heading machine to make fasteners?

Cold heading is a forging method in which a metal bar is upset to shape by a mold at room temperature. It is usually used to manufacture the head of screws, bolts, rivets, etc. The forging material can be copper, aluminum, carbon steel, alloy steel, stainless steel, titanium alloy, etc. Cold heading is mostly carried out on a dedicated cold heading machine, which is convenient to realize continuous, multi-station and automated production. Cutting, heading, accumulation, forming, chamfering, thread rolling, diameter reduction and trimming can be completed in sequence on the cold heading machine. The following Yida Borun Petrochemical briefly introduces how to choose cold heading raw materials:

First, the performance advantages of cold heading equipment

(1) Cold forging forming at room temperature, the working surface has good smoothness, high precision and excellent strength performance.

(2) Cold forging is a process with less and no cutting, which saves raw materials, reduces labor costs, and avoids repeated investment in other machine tools.

(3) The cold forging process is to use the mold to directly form the wire at one time, which is operated by a manipulator, which greatly improves the production efficiency and is safe and reliable.

(4) The cold head forming process can process complex parts that cannot be processed by other machine tools.

(5) The cold heading forming process can replace the warm upsetting process, saving labor costs and energy consumption, and greatly improving production efficiency.

Two, the selection method of cold forging machine equipment

(1) The crankshaft, the body, and the impact connecting rod are made of high wear-resistant alloy casting, with high tensile strength and good wear resistance.

(2) Equipped with variable frequency speed regulation device, high gear efficiency and large torque.

(3) The cutting force of the cutter bar is transmitted linearly, the force is large and stable, and the dynamic balance is good.

(4) The multi-station cold heading machine uses open-close clamps to transfer the workpiece, which is conducive to the arrangement of the forming process.

(5) Equipped with fault detectors and safety protection devices, it will automatically stop when equipment fails to give maximum protection to equipment and tooling.

(6) The design of the lubricating oil circuit is simple and efficient, which can effectively protect the punch and workpiece on the basis of ensuring circulating filtration.

Three, the use steps of cold forging machine equipment (Guide: my country's fastener market scale and industrial advantage analysis)

(1) Install the proximity switch on the equipment, and connect each part of the components according to the electrical schematic diagram.

(2) Press the two reset switches on the counter operation panel to reset the preset number and processing number respectively.

(3) In the manual and automatic modes, turn the speed control potentiometer, the processing speed of the parts will change accordingly, and the speed in different periods will be displayed on the digital display.

(4) Press the emergency stop button on the operation panel of the control cabinet, and the device will stop running, and the data on the total power counter will remain unchanged. After the power is re-started, the equipment will continue to process the parts until it reaches the preset number and then stops.

(5) After turning the key switch, the key operations on the counter operation panel are all invalid.

Four, the three-level maintenance system of the cold heading machine

The content of the three-level maintenance system includes: daily maintenance, primary maintenance and secondary maintenance of the cold heading machine.

(1) The three-level maintenance system is a compulsory maintenance system that focuses on the operators and pays equal attention to the maintenance of the equipment.

(2) Institutionalization is to stipulate and strictly implement different maintenance cycles and maintenance times according to different working conditions of different equipment.

(3) For regular maintenance work, a quota for working hours and material consumption must be established and assessed according to the quota.

(4) The enterprise carries out maintenance work of cold forging machine combined with specialization and group, conducts self-inspection and mutual inspection, and carries out major equipment inspection.

Fifth, the performance requirements of cold heading machine oil

(1) It has excellent extreme pressure lubrication properties, high temperature resistance, extreme pressure wear resistance, rust resistance and high temperature oxidation stability.

(2) It has good processing performance for workpieces with relatively large deformation, such as hollow, high-strength bolts, sleeves, stainless steel hollow, and semi-hollow rivets.

(3) It has a certain degree of anti-rust property, which can meet the anti-rust requirements between working procedures.

(4) It can effectively protect the punch and die, prolong the service life and reduce the comprehensive investment.

(5) High temperature resistance, no sludge, low odor, low smoke, and protect the operating environment.

The above are the key points for the safe use of cold heading equipment. Strictly operating in accordance with the rules and regulations can improve efficiency and avoid accidents. Yida Borun high-end nut special cold heading oil is blended with self-developed high-performance sulfurized lard and sulfurized fatty acid ester as the main agent. It is widely used in stainless steel and high alloy in the fields of automobiles, ships, aerospace, etc. The cold heading of difficult-to-machine materials such as steel has excellent extreme pressure and wear resistance, will not cause the workpiece to be pulled and strained, and effectively extend the life of the die. In practical applications, it has won unanimous praise from domestic and foreign fastener companies.

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