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Servo motor in engraving machine industry application
专栏:Engraving Machine
发布日期:2018-01-09
阅读量:682
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introductionBefore the production of various types of models rely entirely on human hand cutting, bonding, the entire production process labor-intensive, long time-consuming, production accuracy is no...

introduction

Before the production of various types of models rely entirely on human hand cutting, bonding, the entire production process labor-intensive, long time-consuming, production accuracy is not high. Now regardless of cumbersome Chinese doors and windows, flower bar, or modern high-rise buildings, with engraving machine, processing becomes easy and fast, the production effect is more refined and beautiful, it should be said that it is advanced productivity has created all this .

 

 Simple process

Computer engraving machine from the computer, engraving machine controller and engraving machine host of three parts. Its working principle is: through the computer configuration of the special engraving software design and layout, and computer design and layout information automatically sent to the engraving machine controller, then the controller to convert these information can drive the servo motor With power signal (pulse train), control engraving machine mainframe to generate X, Y, Z three-axis carving path radius. At the same time, engraving machine high-speed rotary engraving head, by processing the material configuration of the tool, fixed to the host table processing materials for cutting, carving automation. Figure 1 shows the appearance of a CNC engraving machine.

   

 Figure 2 shows the engraving machine working flow chart. Among them, the graphics input part is to prepare the engraved graphics through the processing of engraving software, organized into computer-readable digital graphics files in order to control the processing machinery automatic work. Followed by the data processing part of the computer to the engraving software processing, sorting out the graphics file further processing can become a control signal processing machinery movements. Once again the process of automatic control, engraving machine to execute computer instructions to complete the graphics engraving process. Throughout the processing, the operator is only responsible for the input processing data, the upper and lower parts and monitoring process, other work is engraving machine equipment automatically, very simple and easy.

 

Figure 1 CNC engraving machine appearance


 

 

 

伺服电机在雕刻机行业的应用

 

Figure 2 CNC engraving machine workflow

 

 

 

伺服电机在雕刻机行业的应用

 

 

Engraving machine overview

Computer engraving machine laser engraving and mechanical engraving two types, these two categories have high power and low power points. Because of the wide range of engraving machine applications, it is necessary to understand the most suitable range of engraving machine. This article mainly introduces wood engraving machine and mold engraving machine.

 

Computer engraving machine laser engraving and mechanical engraving two types, these two categories have high power and low power points. Because of the wide range of engraving machine applications, it is necessary to understand the most suitable range of engraving machine. This article mainly introduces wood engraving machine and mold engraving machine. At present, most furniture manufacturers use woodworking engraving machine or stepper motor system, the stepper motor speed is low, the large stepper angle engraving machine engraving speed is slow, and poor carving accuracy, which directly affects the furniture Factory production efficiency and production quality, and stepping motor system prone to lost steps, when an error can not be corrected in time, resulting in the loss of materials. AC servo system as a high speed and high precision subdivision motion control system, which has an unparalleled advantage, but also help to improve the stability of engraving machine system, which greatly improves the overall performance engraving machine.

 

Stepping motor usually step angle step angle of 1.8 degrees, half-step 0.9 degrees, the resolution of such motors per revolution should be 360 / 0.9 = 400, the maximum output speed of 600RPM effective output power conditions. If the motor does not change but also to improve the accuracy of two ways: First, reduce the lead per lead screw; Second, motor power through the reduction gear drive to the screw. Both of these methods come at the expense of processing speed. Obviously the rate of decrease is contrary to production efficiency. To completely solve the speed, the accuracy of both can not have this contradiction, only the use of faster speed, higher resolution, smooth operation of the AC servo system.

 

Motor speed at constant torque output can reach 3000RPM, the number of encoder lines 2500PPR, the drive uses 4 times the frequency of technology on the control pulse 4 subdivision allows the motor resolution per revolution up to 10000PPR. Apparently no matter its speed or precision are greatly exceeded the requirements of woodworking engraving machine.

 

Mold engraving machine is mainly used for a variety of advertising crystal characters, signs, badges, licensing department, building models, rulers, small metal, wooden molds, stone lettering, furniture production and relief processing and production.

 

Mold engraving machine requires servo response speed, high position accuracy, thus increasing the servo system response bandwidth, encoder resolution is to improve the performance of the main indicators engraving machine.

 

The following figure is engraving machine samples:

 

 伺服电机在雕刻机行业的应用 

   

Figure 2 wood carving samples

 伺服电机在雕刻机行业的应用 

Equipment composition

Computer engraving machine from the computer, engraving machine controller and engraving machine host of three parts.

 

 

Figure 4 engraving machine system

 伺服电机在雕刻机行业的应用 

 

CNC system: The customer has developed numerical control system.

Spindle system: The integrated spindle, driven by the drive.

Feed drive system: ball screw, flexible coupling, linear guide, servo drive system.

 

 

Sunchon servo system advantages

Figure 5 parameter setting interface


伺服电机在雕刻机行业的应用 

(1) precise positioning servo, high response, can quickly adapt to high precision engraving machine, wide-band response requirements.

(2) Servo overload capacity and high-speed torque holding characteristics can adapt to changes in engraving machine load requirements.

(3) friendly man-machine interface, Figure 5 shows the parameter setting interface. Servo communication can be quickly modified to set the parameters to track the speed curve of the function.

(4) When the resonance, noise, vibration or response is limited, you can set the software filter to eliminate mechanical resonance and improve machine responsiveness.

(5) Servo system has good low-speed characteristics and high speed responsiveness.

 

Conclusion

Sinokawa B3 series servo system in the engraving machine on the application of mechanical and electrical automation systems for domestic technology breakthrough in the industry is of great significance. Project on the domestic brand servo system in the field of high-end CNC engraving machine plays a very active role.

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