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Cold Heading Machine Service and Parts


2016/1/25 Hits:397


1, What is cold forging machine?
Cold heading machine is mainly devoted to the pier nuts bolts and other fasteners production equipment.
The world's first cold heading machine from Germany. Cold heading machine was developed primarily for the purpose of mass production during World War II bullet casings.
Cold upsetting
(1) According to the theory of plastic deformation of metal, metal billets at room temperature, apply some pressure, so that plastic deformation generated in the cavity, the shape and size of the required shape.
(2) must be selected high quality "plastic deformation" good metal materials, such as heading steel, its chemical composition and mechanical properties have strict standards.
(3) Cold heading bolts and nut forming machines have multiple models, multiple series of aircraft. Equipment performance, reliable, high efficiency, product quality and stability.
(4) molding upsetting force, the driving force configuration, equipment, a big investment. Therefore, the most economical production of these specifications M24.
(5) a better surface quality, high dimensional accuracy. Upsetting because of the existence of cold hardening process, deformation should not be too large. Reduce cracking.
(6) The application of cold heading process in large quantities, various specifications of products, so as to reduce costs.
Modern cold heading machine has from the previous station to increase up to a simple two-position currently more new varieties of mold 6 6 5 die cold heading machine model lengthened.

2, automatic cold heading machine works

At room temperature on top of the bar or wire bold forging methods. Mainly for the manufacture of cold heading of bolts, nuts, nails, rivets and steel balls and other parts. Forging material can be copper, aluminum, carbon steel, alloy steel, stainless steel and titanium, etc., material utilization up to 80 ~ 90%. Cold heading more in a dedicated machine for cold heading, easy to achieve continuous, multi-station, automated production. Cold heading machine in order to complete the cutting, upsetting head, accumulate, forming, chamfering, thread rolling, necking and trimming and other processes. High efficiency, up to 300 pieces / min or more, the maximum diameter of the cold upsetting of the workpiece is 48 mm. Figure 1 Schematic diagram of cold heading process bolts bolt to the typical cold heading process. Figure 2 Automatic nut multi-station cold heading machine for multi-position automatic cold heading machine nuts. Bar feed mechanism automatically sent by a certain length, cut off the body to cut into the blank, and then transmitted by the clamp-shaped body and the backlog in turn sent to the Poly for forming punching station.


3, cold heading machine operating procedures

First, do the work carefully before
1, check the blades, cutting material Arbor, punches, die and so should be in good condition without cracks, installed correctly, securely fastened.
2, adjustment, cut off the bodies, the folders must be checked with the gap between the die, is prohibited without a check to start the device.
3, Arbor has been cut off material circumstances, the cam slot of the wheel must be removed only after the point of moving equipment.
Second, serious work to do
1, the starting device, disconnect the feeding device only in the case before they start the main motor drives the flywheel turning. Only after the quasi-connected full-speed flywheel to wait for the feed device. Stop the equipment, should first disconnect the feeding device, and then stop the main motor.
2, are not allowed to stop the slider in the "dead" position, such as the slide stop in the "dead" when, except with the artificial disc to correct the action of the flywheel are not allowed to start the equipment.
3, Arbor has been cut off material circumstances, the cam slot of the wheel must be removed only after the point of moving equipment.
4, constant attention to the work plate rack, that confusion should be immediately stopped. Plate material processing to finished quickly, should the shelves to emerge from the feed end.

4, mechanical repair and maintenance requirements
   First, the equipment maintenance
    By clean, cleaning, lubrication, adjustment of equipment and other general care methods to maintain and protect the equipment performance and technical condition, known as equipment maintenance. Equipment maintenance requirements are four:
    (1) Clean the equipment inside and outside clean, the sliding surface, screw, rack, gear boxes, hole, etc. no oil, no oil spills in different parts, no leaks, equipment around the chips, debris, dirt to clean clean;
    (2) neat tools, accessories, parts (products) to be placed neatly, pipes, lines must be reasonable;
    (3) Lubrication oil well or oil changes on time, keep the oil, nothing to do friction phenomena, the normal oil pressure, oil standard bright, oil flow, oil to meet the requirements, oil gun, oil cup, felt clean;
    (4) security compliance with safety rules, do not overload equipment, equipment safety devices are complete, reliable, timely elimination of insecurity.
      The contents of the general maintenance of equipment, including routine maintenance, periodic maintenance, regular inspection and precision inspection, lubrication and cooling system maintenance equipment, equipment maintenance is an important element.
Equipment, routine maintenance is the basis for maintenance work, must be institutionalized and standardized. Set of equipment
      Maintenance work to the formulation of the fixed quota and material consumption, according to the fixed assessment, equipment, regular maintenance contract responsibility system should be included in the assessment workshop content. Equipment, regular inspection is a planned preventive inspections of the means of other senses than people, but also a certain degree of inspection tools and equipment, according to the implementation of regular check card, periodic inspection was also known as the periodic point inspection. The accuracy of the machinery and equipment should also be examined to determine the accuracy of the merits of the actual level of equipment.
     Maintenance of equipment maintenance procedures should be carried out. Equipment maintenance procedures is a routine maintenance requirements and regulations, adhere to the implementation of equipment maintenance procedures, can extend the useful life of equipment to ensure safe and comfortable working environment. Its main contents include:
    (1) equipment to achieve neat, clean, solid, lubrication, corrosion, security and other job content, work methods, the use of industrial equipment and materials, the standards and precautions;
    (2) daily inspection, maintenance and periodic inspection of the site, methods and standards;
    (3) inspection and maintenance of equipment operating workers assessed the extent of the content and method.
Second, the equipment maintenance system for three
Three-tier system is the maintenance of the mid 20th century, 60, summed up the former Soviet Union in the pre-repair system plans based on practice in our country, and gradually improve and develop a repair and maintenance system, which reflects the focus of the management of equipment maintenance by the repair and maintenance of the changes to reflect the progress of equipment maintenance management, and prevention-oriented approach to maintenance and management of more specific. Three-tier maintenance system including: equipment, routine maintenance, a maintenance and secondary care. Three-level maintenance system is the main operator of the equipment in order to maintain the main, both the mandatory warranty repair system. Three-level maintenance system is relying on the masses into full play the enthusiasm of the masses, the implementation of group management group repair, with special groups, improve equipment maintenance and effective way.
Third, measures to improve the level of equipment maintenance
     To improve the level of maintenance should be made to do three basic maintenance work, that is standardized, process, institutionalization.
Standardization is to make the maintenance of the contents of unity, which part of the cleaning, which part of the adjustment, which devices the check, according to the situation of each enterprise to be unified by the objective laws and regulations into account.
     Process of development of different devices is on the basis of the maintenance process of order, according to procedures for maintenance.
     Institutionalization is different according to different working conditions, equipment, provision and maintenance of different maintenance cycle time, and strictly enforced.
     For regular maintenance work, to develop work and material consumption quota fixed and fixed according to the assessment.
     Maintenance work should be combined with production and economic contract responsibility system for an assessment. Meanwhile, enterprises should also mobilize the masses to carry out maintenance of equipment integration experts with the work of self-inspection, mutual inspection, carry out inspection of equipment.