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 forging machine tools? Lets take a look at the main process and classification of forging machine tools in the production of forging machine tools.
Introduction to forging machine tools
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.
Forging machine tools include roll machines, shear machines, punching, pressure machines, hydraulic press, oil pressure machine, bending machine, etc.
Classification of forging machine tools
1. Roller forging machine tool
The metal blank material is used to produce a forging method for plastic deformation to form workpieces in two relatively rotating fan -shaped molds.It is a special form of forming rolling (longitudinal rolling).Roller forging can be used to produce rods, twist drills, wounds, nails, hoe, picks and flat leaves.The roller forging process uses the principle of rolling forming to gradually deform the blank. Compared with ordinary mold forging, it has the simple equipment structure, stable production, vibration and noise, which is easy to achieve the advantages of automation and high production efficiency.Roll forging is divided into two types: blank roller forging and forming rollers.The blank roller forging is a rough for the shape and size required for the mold for forging; the forming roller forging can directly produce forgings that meet the requirements of the shape size.
2. Mechanical pressure forging machine tool
The mechanical pressure forging machine tool converts the rotation motion of the motor into a straight line movement of the slider through the crank slider mechanism, and the forging machine for forming the blank material.The mechanical pressure machine is stable, reliable, and is widely used for stamping, squeezing, mold forging and powder metallurgy.The number of mechanical pressure planes accounts for more than half of the total number of forged machinery.The specifications of the mechanical pressure machine are expressed by the nominal working force (Qian Niu) that it is about 10-15 mm from the slider to the lower end of the itinerary (or the corner of the crank from the lower point is 15 ° ~ 30°) The maximum work design for calculating base points.
3. Squeezing forging machine tool
Thermal squeezing forging machine tools are widely used in pipes and profiles of non -ferrous metals such as aluminum, copper, etc., which belong to the range of metallurgical industry.The thermal squeezing of steel is used to produce special pipes and profiles, but also to produce carbon steel and alloy steel parts that are difficult to produce with cold or warm squeezing forming (pass or unpoy), such asThere are rods, cannons, containers, etc. with thick heads.Cold squeezing forging machine tools were originally used only for the production of pipes and profiles such as lead, zinc, tin, aluminum, copper, etc., as well as toothpaste hoses (leader of tin tin), dry battery shells (zinc), bullets (copper) and other systems.Cold squeezing operation is simple and suitable for small parts of large -scale production.
4. Spiral forging machine tool
The spiral forging machine tool uses screws and nuts as a transmission mechanism, and transforms the forward rotation movement of the flywheel to the upper and lower movement machines of the slider with the spiral transmission.The spiral pressure machine usually rotates the flywheel by the motor to drive the flying wheel through the friction disk. Therefore, this pressure machine is also called a friction pressure machine. Chinas largest friction pressure machine is 25 trillion ox.Later, the electric spiral pressure machine directly drove the flywheel with a motor. Its structure was compact and the transmission link was small. Due to the frequent conversion direction, the control of the electrical appliance was high, and a special motor was required.
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.

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