The forging machine tool has independent power mechanisms and electrical systems. There are many professional factories in domestic production stamping mold frames. The stamping mold rack has been used as the production and sales of standard components.However, large stamping molds are usually specially set. Together with the mold, it is provided by the mold manufacturer to the user.The rotation of the crankshaft, the cam controller issues the corresponding signal, and the electrical control system sends instructions to each working organization after receiving the signal.So what are the operating procedures for forging machine tools?How to maintain it?
Principles of the forging machine tool work
When working on mechanical pressure machine tools, the motor drives the large belt wheel (usually as a flywheel) through the triangular belt, which drives the crank slider mechanism through the gear side and clutch to make the slider and the convex mode go straight down.After the forging work is completed, the slider return up, and the clutch is automatically removed. At the same time, the automatic device on the cracks shaft is connected to stop the slider stop near the upper stop point.
When working on mechanical pressure machines, the motor drives the large belt wheel (usually as a flywheel) through the triangular belt, and the crank slider mechanism is driven by the gear side and the clutch to make the slider and the convex modulus go straight down.After the forging work is completed, the slider return up, and the clutch is automatically removed. At the same time, the automatic device on the cracks shaft is connected to stop the slider stop near the upper stop point.The essence of roller forging is the rolling extension of the blank material, and the section of the blank material becomes smaller and the length increases.When the cross section deformation is large, several holes are completed by several rolling rolling.Its craft design mainly determines the pressure, extension, and extension of the volume of various step rollers for forging.They depend on deformation conditions such as the size of the roller diameter, the shape of the hole, the temperature of the rough, and the cooling lubrication.Some dual -branch roller forged machines have roller shafts on one end. This is a composite roller forged machine combined with cantilever and double -branch types. It can not only achieve longitudinal rollers for forging, and complete the horizontal width of the cantilever side.In large quantities of roller forging production, robotic hand -transmission workpieces are widely used to achieve automation of production process, improve productivity, and reduce labor intensity.
Use convex mold to press the blanking material placed in the concave mold to cause plastic flow, so as to obtain the forging method of the type of component of the mold or uneven mold shape of the mold.When squeezing, the gray material produces three -way compression stress, and even a low -plastic gray material can be squeezed and shaped.Squeezing, especially cold squeezing, high material utilization, improvement of material tissue and mechanical performance, simple operation, high productivity, can make long rods, deep holes, thin walls, and different sections. It is important and non -cutting.Processing technology.Squeezing is mainly used for the formation of metal, and it can also be used for non -metallic forms such as plastic, rubber, graphite and clay.
Each cracks slider is called a "point".The simplest mechanical pressure machine uses a single point, that is, there is only one crank slider.Some large working noodles mechanical pressure machines use double or four points to make the bottom surface of the slider uniform and stable.
The load of the mechanical pressure machine is impactful, that is, the forging work time during a working cycle is very short.The short -term maximum power is more than ten times larger than the average power, so a flywheel is set in the transmission system.After the motor selected by the average power is started, the flywheel is running to the rated speed to accumulate kinetic energy.After the modulus contact is forging, the driving power of the motor is less than the load, the speed is reduced, and the flywheel releases the accumulated kinetic energy for compensation.After the forging work is completed, the flywheel will accelerate the accumulation of kinetic energy again to prepare for the next use.
There is a mechanical or electrical chain between the clutch on the mechanical pressure machine and the brake to ensure that the clutch junction of the front brake must be released, and the clutch before brake braking must be removed.The operation of mechanical pressure machines is divided into continuous, single stroke and inch movement (micro -motion), and most of them are achieved by controlling clutches and brakes.The length of the slider is unchanged, but the distance between the bottom and the working surface (referred to as the seal height) can be adjusted by screw.In production, it is possible to exceed the nominal working force of the pressure machine.In order to ensure the safety of the equipment, overload protection devices are often installed on the pressure machine.In order to ensure the personal safety of the operator, the pressure machine is equipped with photoelectric or two -handed personal protection devices.
Operating procedures for forging machine tools
1. The operator must pass the test and hold the "Equipment Operation Certificate" with this device to operate this device.
2. Do it seriously before work:
(1) Carefully read the records and understand the situation of the previous work.
(2) Check whether the equipment and work venues are cleaned and cleaned; the equipment bed body, work table, guide rail, and other major sliding surfaces must not have obstacles, impurities, and new pull, research, and bumps.If there is the above situation, you must be cleared and the equipment is cleaned; the new pull, research, and bumps should be asked to check it together and make a record.
(3) Check the handles, valves, rods, and major zero, components (sliders, hammer heads, blade racks, etc.) of each operating agency, and should be placed in the non -working location specified in the instructions.
(4) Check the safety protective devices (protective cover, limited switch, limited gear iron, electrical grounding, insurance device, etc.) should be complete, correct and reliable; power distribution box (box), fuel tank (pool), gearbox, gearbox, gearbox,The door cover should be closed.
(5) Check the lubricating site (oil pool, fuel tank, fuel cup guide rail, and other sliding surfaces) of the oil, and refuel the chart according to the lubrication batch.
(6) Check the main zero, components and fasteners.
(7) Open the air (steam) road valve, check the pipeline valve and other devices should be intact and non -leakage, the gas (steam) and pressure should meet the regulations, and let the water in the pipe be removed.
(8) For air -run testing, start inch, check each operating device, safety insurance device (braking, conversion, interlocking, limit, insurance, etc.) each instruction device (indicator instrument, indicator light, etc.) work should beSensitive, accurate and reliable; the movements of each part should be coordinated; the oil supply should be normal, and the lubrication should be good; the machine tool has no abnormal sound, vibration, temperature rise, odor, smoke and other phenomena.Confirm that everything is normal before starting work.For equipment that work in work, the hand -over personnel shall jointly check the handover according to the above (8) provisions; all the equipment that takes off the class will find that there will be serious violations of operating regulations in the previous class.It is also recorded in the case, otherwise the equipment problem occurs with the operating procedures of the violation of this class.After the equipment is adjusted or maintained, the operator must also check the equipment in accordance with the above (8) requirements and steps to confirm that everything is correct before starting the work.
3. Do it seriously at work:
(1) Persist in job positions, carefully operate the equipment, and do not do things that have nothing to do with work.When you leave the device, you have to stop and turn off the source of electricity, gas (steam).
(2) The use of technical specifications specified in the instructions shall not be specified and overloaded equipment.
(3) Pay close attention to the lubrication situation of each part of the equipment, and refuel in the class according to the lubrication indicator chart to ensure that the lubrication of each part of the equipment is well lubricated.
(4) Pay close attention to the work of all parts of the equipment. If there are abnormal sounds, vibrations, temperature rise, odor, odor, uncoordinated movements, failure, etc.
(5) Speed, change molds, knives or rubbing tests. When repairing the equipment, stop the driver in advance to turn off the source of electricity, gas (steam).
(6) When working, you must not disassemble the safety protective device and open the power distribution box (box), oil pool (box), and gearbox door cover for work.
(7) The device accident must be stopped immediately to protect the scene and report the analysis and processing of relevant departments.
4. Do it seriously after work:
(1) Each operating device, as well as slider, hammer, knife rack, etc., should be placed in a non -working location in accordance with the instructions;
(2) Sorting tools, parts and work venues.
(3) Clean the head, material edge, oxide, and debris on the workplace and equipment; wipe the equipment to clean each part of the equipment and protect each sliding surface.
(4) Fill in the handover record.
Maintenance of forging machine tools
Overall inspection
Clean the outside of the forging machine tool thoroughly, check whether all fastened screws are loose, whether each component is safe, whether there are open welding, cracks or deformation.There should be a safety warning signs on the fuselage, and the length should be not less than 30 cm.
Examination of trial transportation
After the forging machine tool is rotated, check whether there is a wind leakage, and at the same time check the machine for abnormal vibration, and make a comprehensive lubrication as required.Carefully observe whether there are collisions, frictions and stagnation.There are no abnormal sounds.Use power mechanics to drive low -speed operation and observe the operation of each part.
Input device check
The conveying chain must be checked by section.The tension of feeding the chain should be consistent. It is advisable to touch the bottom plate with a long middle part of the chain. The main and passive axes of the transport chain should be parallel.
Examination of clutch device
The security clutch should be adjusted during work and use to check the degree of wear of wave -type teeth. If the teeth are grinded 1/3, it should be replaced.
Check and adjustment of forging sites
After conducting the pressure resistance test of the whole machine, the pressure adopted by the test is 1.25 times the work pressure, check the piston to the largest working itinerary, the stabilization of the voltage for 15 minutes, the decrease in the number of pressure gauges must not exceed 4%of the test pressure; all oil circuits should beThere is no leakage; after all the pressure is removed, the pressure gauge pointer returns to the "0" bit, the parts should not be damaged, the trolley should not have significant deformation, and the motion component is not stuck.Perform a reliability test on the safety valve, and adjust the safety valve to the work pressure (upper left +5, lower left +1) MPA, 5 consecutive tests, and the needle valve is sensitive.The rated work pressure.

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