Straight row automatic tool change woodworking engraving machine

This model is a CNC tool changer with excellent price. The difference between the machine and the automatic knife changer is mainly the tool change mode, the machine's three-axis drive mode, the drive power, etc., and the main components of the machine are imported. Configuration, dual-track bilateral transmission machine, also belongs to heavy cutting type processing machine.
1. Straight-row automatic tool change engraving machine adopts split keyboard control: simple, convenient and easy to learn split keyboard operation, users can quickly and flexibly master the use of equipment, and the independence is stronger.
2, advanced Taiwan CNC control system, intelligent processing cross-border protection function: to prevent mechanical collision phenomenon caused by the design layout exceeding the processing range. Intelligent processing speed control: It can control the processing speed separately, truly improve the processing efficiency, extend the tool life and improve the yield.
3. Vacuuming and adsorption device: The vacuuming system can absorb wood chips and broken foam during the processing, and maintain the equipment clean and disguised. The adsorption system replaces the mechanical plate fixing and improves the processing. Plate loading and unloading time.
4, advanced file pre-processing function, to help users correct errors in processing files in a timely manner, and can be well compatible with domestic and foreign software (such as Mastercam, Typ3, UG, Artcam, Caxa, etc.) generated processing code. Advanced 3D curve prediction algorithm, the line is stable, ensuring the speed and accuracy of the curve.
5. Based on the embedded CNC system of the Windows platform, upgrade the extended function. The anti-jamming design of the hardware and software synchronization ensures reliable operation of the system time. It has the function of breakpoint, power-off and continuous engraving, and has the function of automatic error correction of returning to the original point, which effectively guarantees the processing precision when working for a long time.
6. The whole machine is welded seamlessly with steel structure, with strong rigidity and no deformation.

◆Application range◆:
1. Woodworking industry: solid wood furniture, solid wood doors, decorative materials, cabinet doors, computer tables, mahjong tables, panel furniture, office furniture, wooden speakers, wooden kitchen utensils and other furniture processing.
2. Advertising industry: advertising signs, logo making, acrylic cutting and blistering, a variety of advertising materials and decorative products.
3. Mould industry: It can engrave metal molds such as copper, aluminum and iron, as well as non-metal molds such as artificial marble, sandstone, plastic board, PVC pipe and wood board.
4. Other industries: can engrave a variety of shadow carvings, reliefs, widely used in the craft gift industry.

Design of stepping motor acceleration and deceleration controller for engraving machine

1 Introduction
  For decades, the rapid development of digital technology, computer technology and permanent magnet materials has opened up a broad prospect for the application of stepper motors. The open-loop CNC system consisting of stepper motor and drive circuit is very simple, inexpensive and very reliable. In addition, stepper motors are also widely used in applications such as printers, engraving machines, plotters, embroidery machines and automation instruments. Because of the wide application of stepper motors, more and more research on the control of stepper motors is more and more. If the stepping pulse changes too fast during start-up or acceleration, the rotor will follow the change of the electric signal due to inertia, resulting in blockage. Turning or losing step; overstepping may occur during stop or deceleration for the same reason. In order to prevent stalling, out of step and overstep, and increase the working frequency, the stepping motor should be controlled by the speed. This article describes a stepper motor speed-up controller for an automatic edger that can be used in other applications due to its versatility.
  From the moment frequency characteristics of the stepping motor, the output torque of the stepping motor decreases with the increase of the pulse frequency. The higher the starting frequency, the smaller the starting torque, the worse the ability to drive the load, and the loss will occur when starting. Steps, and overshoot will occur when stopped. For the stepper motor to quickly reach the required speed without losing step or overshoot, the key is to make the torque required by the acceleration during the acceleration process fully utilize the torque provided by the stepping motor at each operating frequency. Can not exceed this torque. Therefore, the operation of the stepping motor generally has to undergo three stages of acceleration, uniform speed and deceleration. The acceleration and deceleration process time is required to be as short as possible, and the constant speed time is as long as possible. Especially in the work requiring fast response, the time required to run from the start point to the end point is short, which requires a short process of acceleration and deceleration, and a high rate at constant speed. In the past, most of the speed up and down speeds were chosen to be in a straight line. When this method is used, its pulse frequency has a constant acceleration. Under the condition that the stepping motor does not lose the step, the acceleration of the driving pulse frequency variation is proportional to the angular acceleration of the stepping motor rotor. When the torque of the stepping motor is kept constant with the rise of the pulse frequency, the straight-line speed is the ideal speed-up and down-speed curve, and the torque of the stepping motor decreases with the increase of the pulse frequency, so the straight line is not ideal. Lifting speed curve. Therefore, the method of raising and lowering speed according to the straight line is simple, but it cannot guarantee that the angular acceleration of the stepping motor rotor is adapted to the change of its output torque during the speed of the lifting and lowering, and the acceleration performance of the motor cannot be maximized. . This system seeks a discrete control algorithm based on FPGA control and exponentially speeds up and down. After several runs, it achieves the expected goal.