Stepper motors have the disadvantages of high vibration and noise when working at low frequencies. If the subdivision method is used, this problem can be well solved. The subdivision control of stepper motors is essentially achieved by controlling the current in the excitation winding of the stepper motor, so that the synthesized magnetic field inside the stepper motor is a uniform circular rotating magnetic field, thereby achieving the subdivision of the step angle of the stepper motor. In general, the amplitude of the synthesized magnetic field vector determines the size of the rotation torque of the stepper motor, and the angle between adjacent synthesized magnetic field vectors determines the size of the step angle. The half step working mode of the stepper motor contains the working principle of subdivision. There are various methods to implement subdivision, and the most commonly used is the pulse width modulation chopper drive method. Most specialized stepper motor drive chips use this drive method, and TA8435 is one of them.

Stepper motor is an open-loop control component that converts electrical pulse signals into angular displacement or linear displacement. In non overloaded situations, the speed and stopping position of the motor depend only on the frequency and number of pulses of the pulse signal, and are not affected by load changes. That is, when a pulse signal is added to the motor, it rotates one step angle. The existence of this linear relationship, coupled with the characteristic that stepper motors only have periodic errors without cumulative errors. It makes it very simple to use stepper motors to control speed, position, and other control fields.

Although stepper motors have been widely used, they cannot be used like ordinary DC motors, and AC motors are commonly used. It must be controlled by a dual ring pulse signal, power drive circuit, and other components before it can be used. Therefore, using stepper motors well is not an easy task, as it involves many professional knowledge such as mechanics, motors, electronics, and computers.

Linear module used in laser machines

The linear module has been widely used in various devices since its development. Made indispensable contributions to the development of equipment manufacturing in our country, reduced dependence on imported complete sets of equipment, and brought more opportunities for engineers who are enthusiastic about equipment research and development and manufacturing. Linear modules are currently widely used in measurement, laser welding, laser cutting, glue coating machines, spraying machines, punching machines, glue dispensing machines, small CNC machine tools, engraving and milling machines, sample drawing machines, cutting machines, transfer machines, classification machines, testing machines, and suitable educational places.

With the application of linear modules in the laser machine industry, many users in the food, beverage, and even construction pipe industries have begun to try using laser machines, ushering in a new era for laser machines. The sales of more affordable, user-friendly, and economical carbon dioxide laser machines are leading, which not only proves that the linear module laser machine predicted a few years ago is a "potential stock" in the identification industry equipment, but also proves that users are gradually entering the "green and environmentally friendly" production field. While ensuring production efficiency, the strategic thinking of reducing pollution sources and pollutants, protecting the environment, and sustainable development is gradually popularized and recognized by users.

The integration of linear modules gives laser coding machines significant advantages:

1. It has the advantages of fast speed, high precision, good quality, and small deformation, greatly improving the product's appearance and brand effect;

2. The linear module laser machine has a wide range of applications and can engrave, mark, and spray code almost any material;

3. No need to open molds, computer programming, easy deformation, not limited by production volume, greatly shortening the development cycle of new products and reducing development costs;

4. Easy to use, any employee can learn the normal operation process of laser equipment in a short time;

5. Protect the environment, prevent any harmful products from occurring, and further create profit value on the basis of environmental friendliness;

6. The linear module laser machine can mark surfaces of various materials and shapes without causing unstable operation or other situations.