The characteristics and principles of ordinary mechanical punches machine

The design principle of ordinary mechanical punching machine is to convert circular motion into linear motion. The main motor outputs the force to drive the flywheel, and the clutch drives the gear, crankshaft (or eccentric gear), connecting rod, etc., to achieve the linear motion of the slider. The movement from the motor to the connecting rod is a circular movement. Between the connecting rod and the slider, there needs to be a transition point for circular motion and linear motion. There are roughly two mechanisms in its design, one is ball type, the other is pin type (cylindrical type), through which circular motion Converted into linear motion of the slider.

The punch presses machine the material to deform it plastically to obtain the required shape and accuracy. Therefore, it must be matched with a set of molds (upper mold and lower mold), the material is placed in between, and the machine applies pressure to deform it , The reaction force caused by the force applied to the material during processing is absorbed by the punch machine body.

An ordinary mechanical punch machine is a punch press. In national production, the stamping process has the advantages of saving materials and energy than traditional mechanical processing, high efficiency, low technical requirements for the operator, and various mold applications that can make products that cannot be achieved by mechanical processing. Therefore, Its uses are becoming more and more extensive.

Stamping production is mainly for plates. Through the mold, it can make blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting and extrusion, etc., which are widely used in various fields. The working principle and characteristics of pneumatic punch

The working principle of pneumatic high-performance punch machine :

• The pneumatic high-performance punch press uses a pneumatic clutch to transmit the inertial force of the flywheel to the crankshaft, connecting rod, and sliding block. The working principle is shown in the attached drawing; the crankshaft connecting rod is rigid, so the movement of the sliding block is mandatory, and the speed is the same. When, the stroke times and movement curve of the slider are fixed.

• Using the high-pressure gas generated by the compressor, the compressed gas is delivered to the solenoid valve through the pipeline, and the solenoid valve is controlled by the foot switch to control the work and return of the cylinder, so as to achieve the purpose of punching.

• The compressed air can be stored in the air tank and can be used at any time, so there is no energy waste of the motor when idling. Using the cylinder as the working part and the solenoid valve as the control element make the structure of the machine simpler, the failure rate is low, the maintenance is simple, and the maintenance cost is lower.

Features of pneumatic high-performance punch:

• Compressed air is used as the power source, which is highly efficient and easy to operate, simple in structure and minimal maintenance.

• Microcomputer control system is adopted, and the mode can be manual, semi-automatic and fully automatic. Heating mold, temperature control and pressure sensor can be added. Simple structure.

• Equipped with anti-rotation guide rods and guide plates, with high precision, which can adapt to high-speed precision blanking.

• The height, speed, stroke, pressure and stamping time can be adjusted arbitrarily according to different products or molds.

• There is no noise generated by the hydraulic system during standby, which can save power consumption and reduce production costs.

• Two-hand control or foot pedaling can be selected. Ensure the personal safety of operators.

As pneumatic punching machines become more and more common, many people have begun to learn more about pneumatic punching machines. However, many people still do not know the difference between pneumatic punching machines and mechanical punching machines. Next, we will introduce to you the main differences between the two.

First of all, the main punching power of both comes from the impulse generated by the electric motor driving the flywheel, and the flywheel driving the crankshaft. The brake of the pneumatic punch depends on the pneumatic clutch, and the ordinary mechanical punch uses the traditional mechanical key brake.

Ordinary punches machine are a kind of mechanical processing equipment with a more traditional stamping process. It can save product materials and energy, but its efficiency is lower than that of pneumatic punches, and the technical requirements for operators are not high, which poses certain safety hazards.

Pneumatic high-performance punch is a general-purpose machine in the stamping industry. It is suitable for punching, blanking, bending, stretching and other cold stamping work (not used for pressing and printing). It is equipped with a feeding mechanism and can perform semi-automatic or fully automatic work. At the same time, when equipped with a photoelectric protection device, occupational injuries can be reduced to a very low level.

To summarize briefly, there are four main differences:

1. Safety, pneumatic punching machine is much higher in safety performance than traditional punching machine;
2. Precision, pneumatic punching machine has higher precision than traditional punching machine; it is also more convenient to move up and down the mold;
3. Speed, pneumatic punch presses machine are faster than traditional mechanical punch presses; pneumatic punch presses have cylinders and need air, but traditional ones don’t;
4. The price of pneumatic punches machine is higher than that of traditional mechanical punches; but considering factors such as efficiency, practicability, and safety, pneumatic punches are more cost-effective.