Posted on Dec 25, 2020
The mechanical press machine principle is to turn the circular motion into a linear movement, and the force to drive the flywheel is generated by the main motor. To accomplish the slider's linear motion, the clutch drives the gear, the crankshaft (or the eccentric gear), the connecting rod, etc. A circular motion is the acceleration of the motor towards the connecting rod.
A mechanical press machine is a widely used metal forming machine tool, which is designed to form or cut metal by applying mechanical force or pressure. With the help of a press, you can form any desired shape of metal without removing chips. The press is specially used for mass production. The main advantage of using these types of mechanical presses is that they are the fastest and most effective method of forming any sheet metal into the final product.
The frame, plunger, nut and screw, iron ball, handle, guide rail, punch, and die are the key elements of the hand mechanical press machine. A rigid C-shaped cast is the frame of the unit. The traditional frame shape leaves the front opening open, which makes it easier to feed the metal sheet from the side of the unit from under the punch. But there is much more to mechanical press machines that impress us again and again. So let us press forward and find out more!
Mechanical press machines, covering several various types of machine tools, belong to a subset of machine tools. The mechanical press turns the engine's rotational force into a vector of translational force that carries out pressure operation. The energy in the mechanical press comes from the electric motor. Generally, these types of presses are easier than hydraulic or screw presses (in fact, screw presses can also be classified as mechanical presses). In a mechanical press, the speed and degree of force applied throughout the stroke range can vary, unlike other presses. The right stroke range is important when using mechanical presses to conduct production operations.
:: Read More: What is an Automatic Press Machine?
Generally, the main components in the mechanical press machine structure do not change with the type of drive and control. Examples of these components include press top covers, columns, bases, backing plates, sliding and guiding systems. However, when used in a servo press, the components involved in the torque transmission and lubrication system are analyzed differently. Due to the flexibility of the servo press, the axis can be accelerated and decelerated according to application needs.
This is different from traditional mechanical presses. In traditional presses, we can assume that the shaft speed is constant throughout the stroke. Besides, the axis of the servo press can change the direction of rotation. This non-constant rotation of the shaft can cause increased fatigue due to reverse torsional stress. As other consequences, the inertia and static friction of the system must be overcome more frequently, and the lubrication conditions will change. Ignoring these phenomena when designing or modifying the mechanical press machine can lead to premature failure.
The mechanical press machine principle is to turn the circular motion into a linear movement, and the force to drive the flywheel is generated by the main motor. To accomplish the slider's linear motion, the clutch drives the gear, the crankshaft (or the eccentric gear), the connecting rod, etc. A circular motion is the acceleration of the motor towards the connecting rod. Between the connecting rod and the slider, a circular motion and a linear motion transfer point are required.
The architecture of a mechanical press machine has approximately two mechanisms, one is a spherical type and the other is a type of pin, in particular a cylindrical type, and by this mechanism, the circular motion is carried out to a linear motion of the slider. To achieve the necessary shape and accuracy, the presses release the force on the material to bend it plastically.
The mechanical body of the press absorbs the reaction force caused by the force applied to the material during manufacturing, so it is necessary to align the set of molds, separate the upper mold and the lower mold, place the material between them and apply pressure to the bending system.
A forging machine powered by a crank connection or toggle lever mechanism, cam mechanism, and screw mechanism, that’s what defines a mechanical press machine. It is a pressure-handling unit instrument for products. By putting heavy pressure on the blank to deform and crack it is processed. Hydraulic transmission has many technological benefits relative to mechanical transmissions, such as a high power-to-mass ratio, easy step-less speed control and overload safety, and a flexible and convenient structure.
To deal with materials, all types of presses are used, but they do so in distinct ways. Water is used by hydraulic presses to drive pumps and cylinders. To finish their work, mechanical presses use mechanical components. Various presses have their range of advantages as well as disadvantages. The mechanical press machine is quicker, cheaper, and more effective in terms of electricity. Hydraulic presses are more mobile, and their precision is increased by programmable motions. In addition to their mechanical parts, a mechanical press can have hydraulic components. These are present only to add to the machine's performance and strength. Let's take a look at the three main benefits of a mechanical pressing machine:
The hydraulic press uses a hydraulic pump to produce energy to transfer electricity through the hydraulic actuator of the control circuit. There are water and emulsion for the liquid meson; hydraulic fluid. It is characterized by high working pressure, stable operation, free working stroke power, a large range of modifications, a large working space, and moderate efficiency of work. It is capable of doing much of a mechanical press machine's function and has a wide variety of applications. The hydraulic press configuration is more complex. Generally, the larger presses are fitted with separate pumping stations, the control components and circuitry are more complex and the price is comparatively high.
The mechanical press machine makes for quicker operation and a relatively simple method of maintenance. However, with respect to the molds you can process, you are more constrained! The hydraulic press is suitable for big, complex, and accurate automotive sheet metal parts from the mold perspective, especially with a 'stretch' feature. Suitable for large cover pieces and vehicle door parts. Compared to mechanical presses, the features are relatively dense, and the stability of the structure and scale of the device is greater.
For a mechanical press machine, since it has a reduced footprint, you can usually get away with less space in your workspace. You would also benefit from improved overall transmission of electricity. The crank-arm press uses the crank-arm to transfer power, which is distinguished by high working performance and quick running speed, and the working stroke is fixed and can not be modified. Overloading activities are strictly banned. Generally used for blanking, scratching, shaping stretches, etc.
