Maintenance and maintenance of cold piers

Cold pier machine definition:

The cold heading machine is a special equipment specially used for mass production of fasteners such as nuts and bolts. The earliest cold heading machine in the world originated from Germany. At that time, the purpose of developing the cold heading machine was mainly for the Second World War. Mass production of bullet casings. The working principle of the cold heading machine is to forge the shape of the top of the bar or wire at room temperature. Cold heading is mainly used to manufacture anti-corrosion pipe bolts, nuts, nails, rivets and steel balls. The forging material can be copper, aluminum, carbon steel, alloy steel, stainless steel and titanium alloy, and the material utilization rate can reach 80-90%. Cold heading is carried out on a dedicated cold heading machine, which is convenient for continuous, multi-station and automated production. In the cold heading machine, the processes of cutting, hoeing, accumulation, forming, chamfering, twisting, shrinking and trimming can be sequentially performed. The production efficiency is high, up to 300 pieces/min. The diameter of the larger cold heading workpiece is 48 mm. 2 Multi-station nut automatic cold heading machine is a multi-station nut automatic cold heading machine. The bar material is fed into the automatic fume hood of the feeding mechanism for a certain length, and the cutting mechanism cuts it into a blank, and then the clamp conveying mechanism sequentially sends it to the accumulating pressing and punching station for forming.

Cold rolling process:

(1): According to the metal plastic deformation theory, a certain pressure is applied to the metal blank at a normal temperature to cause plastic deformation in the cavity, and is formed according to a prescribed shape and size.

(2) Selecting a good "plastic" good metal material, such as rivet steel pipe, has strict chemical composition and mechanical properties.

(3) There are many models and multi-series models for cold heading bolts and nut forming machines. The equipment has reliable performance, high efficiency and stable product quality.

(4) The product has a large forging force, the power is configured, and the equipment is invested once. Therefore, the production specifications M24NSK bearings are economical.

(5) It has good surface quality and high dimensional accuracy. Because there is cold work hardening in the upsetting process, the deformation amount should not be too large. Reduce cracking.

(6) The cold heading process is applicable to products with large batch sizes and various specifications, so as to reduce costs.

Cold heading operating procedures:

Do it carefully before work

(1) Check that the blade, cutting bar, punch, die, etc. should be intact and free of cracks. Install the guardrail correctly and securely.

(2) After adjusting the cutting mechanism, check the gap between the die and the die clamp. It is strictly forbidden to start the device without inspection.

(3) When the cutting knife bar has been folded, the chiller roller in the cam groove can be removed before the device can be jogged.

Do it seriously at work

(1) When the equipment is started, the main motor is driven to rotate the flywheel only when the feeding device is disconnected. The feed device is only allowed to be turned on after waiting for the full speed of the flywheel. When stopping the equipment, disconnect the feeder and stop the main motor.

(2) It is forbidden to stop the slider at the "dead point" position. If the slider stops at the "dead point", only the method of manually rotating the flywheel is used to correct it, and the device is not allowed to be activated.

(3) When the cutting tool bar has been folded, the roller in the cam cold rolling machine slot can be taken out before the device can be jogged.

(4) Always pay attention to the working condition of the rack, and find that the chaos should stop immediately. When the stock is processed to the end, the tail should be removed from the shelf.

Mechanical maintenance requirements:

Maintenance of equipment The equipment is treated by general methods such as wiping, cleaning, lubrication, and adjustment to maintain and protect the performance and technical status of the equipment, which is called equipment maintenance. There are four main requirements for equipment maintenance:

(1) The inside and outside of the cleaning equipment are clean and tidy. The sliding surfaces, screw rods, racks, gear boxes, oil holes, etc. are free of oil. The parts are not leaking or leaking. The chips, debris and dirt around the equipment should be cleaned. clean

(2) The tidy tools, accessories, and workpieces (products) should be placed neatly, and the pipelines and lines should be organized.

(3) Lubrication, good oiling or oil change on time, continuous oil, no dry friction, normal oil pressure, bright oil mark, smooth oil passage, oil quality meets requirements, oil gun, oil cup, linoleum cleaning

(4) Safety compliance with safe operating procedures, multi-station cold heading equipment is not overloaded, the equipment's safety protection devices are complete and reliable, and unsafe factors are eliminated in time.

The maintenance content of the equipment generally includes routine maintenance, regular maintenance, regular inspection and precision inspection. Equipment lubrication and cooling system maintenance are also an important part of equipment maintenance. The routine maintenance of equipment is the basic work of equipment maintenance, and it must be institutionalized and standardized. For the fixed maintenance work of the equipment, the work quota and material consumption quota shall be determined, and the assessment shall be carried out according to the quota. The regular maintenance work of the equipment shall be included in the assessment content of the workshop contract responsibility system. Regular inspection of equipment is a planned preventive inspection. In addition to the human senses, the inspection methods must also have certain inspection tools and instruments. The inspections are carried out according to regular inspection cards. Regular inspections are also called periodic inspections. Accuracy checks should also be performed on mechanical equipment to determine the pros and cons of the actual accuracy of the equipment. Equipment maintenance should be carried out in accordance with maintenance procedures. The equipment maintenance hoisting protection program is the requirements and regulations for the daily maintenance of the equipment. It adheres to the equipment maintenance procedures, which can extend the service life of the equipment and ensure a safe and comfortable working environment.