In recent years, with the expansion of various domestic machine tool transformation needs, machine tool transformation has gradually formed an industry, most of which is the transformation of CNC machine tools, but also some of the business from non-CNC machine tool upgrades. As a steadily developing professional company, we have made great achievements in the application of the Siemens system, the transformation of CNC machine tools and the provision of design services for machine tool factories. We have already ranked among the top companies in the country. Last year, our company was awarded the title of Zhongjiwei. The national A-level maintenance and renovation qualification enterprise certification issued by the association.

In the practice of reform, we always believe that a good renovation program is an important basis for successful transformation, and it is strictly controlled at this stage to ensure the successful implementation of the transformation; and this link seems simple and actually contains a very important content. My understanding of the system and the foundations of past repairs and transformations are very high. This article will elaborate on the selection of transformation options and analyze the specific content of each step for your reference.

I. Modern NC Drive Products Bring Rich Choices

As the core agent and system integrator of Siemens CNC products, we have been using Siemens products to provide services for our customers over the years. The renewal of Siemens products has also witnessed a new atmosphere in recent years, which has changed the image of the expensive and squeaky German electrical products in the past, and formed a situation that ties in with Japanese digital products.





One by one to analyze
1, SINUMERIK 802S/C system:
The 802S and 802C system standard configuration packages have all the necessary components: NC, PLC, operation panel, machine control panel, input/output unit and system software. Operational programming is extremely easy, maintenance-free, and cost-effective. It is specifically designed for Economic CNC control system developed in the low-end CNC machine tool market. Sales in China are very successful.
The two systems 802S/C have the same display, operation panel, numerical control function, PLC programming method, etc. The only difference is SINUMERIK 802S with stepping drive system, control stepper motor, with three stepping drive shafts and one +/- 10V analog servo spindle; SINUMERIK 802C with servo drive system, it uses the traditional analog servo +/- 10V interface, with a maximum of 3 servo drive shaft and a servo spindle. The newly introduced 802Se/Ce integrates all components such as the CPU, input and output points, and control interfaces behind the panel. The integrated design makes maintenance easier. Therefore, the 802S and 802C systems are very suitable for the numerical control transformation of ordinary machine tools and digital display machine tools, as well as the NC matching and transformation of low-grade CNC machine tools. We have applied the occasions of CNC lathes, CNC boring and milling machines, CNC grinding machines, gun drilling machine tools, special planes and so on.
The SINUMERIK 802C has advantages in car/milling application technology and is equipped with the new Siemens SIMODRIVE 611U. This system can even connect 3 axis scales to form a closed-loop control, so we also applied it to the coordinates. Trampoline, coordinate grinder, high performance to price ratio.

2. SINUMERIK 802D system:
Siemens introduced the 802D CNC system in the new century. The system is a mid-range system, its characteristics are: full digital drive, Chinese system, simple structure (connect Profibus system panel, I / O module and servo drive system.) Simple debugging (through PCMCIA card series debugging). The maintenance-free SINUMERIK 802D core unit - the control panel unit (PCU) - features CNC, PLC, human-machine interface and communication functions. The integrated PC hardware allows the user to easily install the control system on the machine.
The SINUMERIK 802D can control 4 digital axes and 1 spindle. The spindle is completely controlled by the PCU, both digital and analog. Using the Profibus bus allows the system components such as servos and I/O modules to be directly connected. The modular drive unit SIMODRIVE 611 UE can be configured with various drives and motors according to the needs of CNC lathes or CNC milling machines. Powerful Windows tools make setting drive parameters very easy. Position encoders can be used for measuring the position of the motor or grating scales. The SINUMERIK 802D has a powerful PLC-SIMATIC S7-200 with programming tools that can run on any PC and its diagnostic functions are also perfect. Ladder programming and classic PLC program examples can be easily applied to machine control.
Although the SINUMERIK 802D system is a low-end system, it is basically a standard CNC system and is most suitable for the matching and modification of CNC lathes, milling machines, grinding machines and CNC machining centers with small magazines.
3, SINUMERIK 840D/810D/840Di system:
The 840D/810D was introduced almost simultaneously with very high system consistency.
Display/operation panel, machine operation panel
STEP7-300PLC input/output module, PLC programming language
CNC system operation, part program programming, parameter setting, diagnosis, etc.
Many parts of the servo drive
Due to the above characteristics, this series of products is widely used in many enterprises, especially in the automotive, aerospace, and machinery industries. Using 810D/840D system, S7300, Profibus, HMI and other products, the interests of customers have been very well maintained: consistency of operation, consistency of programming, consistency of spare parts, training, and convenient maintenance, etc., can display Chinese.
A, SINUMERIK 840D, it is suitable for various control technologies through the system setting on the complex system platform. Together with the SINUMERIK 611D digital drive system and the SIMATIC S7 programmable controller, the 840D forms a fully digital control system.
It is suitable for the control of various complex machining tasks and has superior dynamic quality and control accuracy over other systems. The standard control system is characterized by a large number of control functions such as drilling, turning, milling, grinding, and special controls. These functions do not have any influence on each other in use.
Due to the open structure, this complete system is also suitable for other technologies such as shearing, stamping and laser processing.
The highlight of the SINUMERIK 840D is its ever-expanding features. Its self-learning and self-optimizing system greatly shortens the adjustment time of the system. Fine tuning can also be carried out simply and automatically by the user of the machine tool. Remote diagnosis makes troubleshooting easier and faster.
The SINUMERIK 840D is maximally integrated in the same 50 mm wide frame as the SIMODRIVE 611 control module. The SINUMERIK 840D, SIMODRIVE 611D, and advanced SIMATIC S7 systems provide a comprehensive solution for the automation of machine tools: fully digital systems The innovative system architecture, higher control quality, higher system resolution and shorter sampling times ensure first-class workpiece quality.
The 840D incorporates today's most advanced control concepts for drilling, milling and control of turning and grinding machine tools. For example, a lathe with digital communication between the CNC and SIMODRIVE can achieve the machining accuracy of the grinder. The SINUMERIK 840D can also implement many special NC functions, which are difficult to see in a comparable system.
B, SINUMERIK 810D is 840D integrated CNC and drive control, NC CPU and driver integrated in a board, the power of the drive can provide three coordinates and two coordinates two. In simple terms, the SINUMERIK 810D system does not have a driver interface. The SINUMERIK 810D NC software option basically contains all the functions of the 840D, for example:
1) The same drilling, milling, and machining cycles;
2) Predictive functions can be implemented on the integrated control system to achieve rapid control;
3) coordinate transformation function;
4) Fixed point stop can be used to clamp the workpiece or define a simple reference point;
5) Analog control and analog signal output;
6) Tool management is another powerful management software option;
7) The spline interpolation function (A, B, C spline) is used to generate a smooth transition;
8) The compression function is used to compress the NC record;
9) Polynomial interpolation function can increase the running speed of SINUMERIK 810D/810DE;
10) The temperature compensation function ensures that your CNC system maintains normal temperature in this high-tech, high-speed operation;
It can be seen that the functions and options of SINUMERIK 810D are very powerful, not less than 840D, but its application has its own particularity. Reasonably using its internal integrated drive system can reduce costs and achieve high performance. Therefore, it is not only limited to the supporting of CNC machine tools, but also has broad application prospects in wood processing, stone processing or packaging machinery and other industries.
In our renovation practice, SINUMERIK 840D/810D has been used most frequently in the past two years, especially the 810D in the application of powerful grinding machines, cylindrical grinding machines, and corrugating roller grinding machines.

Recently, with the introduction of the PROFIBUS-DP field bus architecture Siemens 840Di system, we have a more competitive choice:

1) The full PC-integrated SINUMERIK 840Di CNC provides you with a PC-based, trendy control concept. The main uses benefiting from this concept are those where the PC is used in some way or a self-control scheme using distributed drivers and I/O. Applications include wood products, glass, pottery, packaging, placement machines, presses, bending machines, and machines of all kinds and machine tools. In addition to the high degree of software and hardware openness, the salient feature of the SINUMERIK 840Di is that both the CNC control functions and the HMI functions run on a PC processor. That is, the NC processing unit required in the conventional control system can be omitted. This control system contains a large number of standardized components: industrial PCs with interface cards, PROFIBUS-DP, Windows NT operating system, OPC (OLE for Process Control) interface and NC control software.
2) The SINUMERIK 840Di offers you a lot more. Particularly advantageous is its position in the SINUMERIK family. For example, the NC and PLC functions, operator functions and machine data of the SINUMERIK 840D and SINUMERIK 840Di are compatible. The corresponding NC program and PLC program can be run on both systems. And because the system is highly open, software applications can be equally applied to both systems. The SINUMERIK 840Di is part of the automation control environment for SIMATIC and SIMODRIVE.
3) Distributed configuration using PROFIBUS-DP. The trend toward the distributed direction of the system is very clear now. Another important feature of the SINUMERIK 840Di is PROFIBUS-DP with position control. This is a unified fieldbus for drives and I/O. It allows several systems to implement distributed configurations.
4) The SIMATIC ProTool/Pro Configuration Tool plus the attached "SINUMERIK ProTool/Pro Option" offers you special convenience. That is, users can use it to generate their own dedicated user interface without having to master additional software skills.
5) All functions are integrated in the same module for optimal communication. The MCI board is a PCI type card. The module contains the integrated SIMATIC S7 315-2 DP PLC-CPU and interfaces for MPI (multiple interfaces) and PROFIBUS DP interfaces and I/O. The SIMODRIVE 611 universal drive can be connected. The SIMATIC DP ET200 module is available as I/O.
4, SINUMERIK 840C system:
The SINUMERIK 840C system has always been ranked first in the world's numerical control system. It has a powerful PLC 135WB2 and can control SIMODRIVE 611A/D analog or digital AC drive systems, suitable for high-complexity CNC machine tools. Although it has been launched for many years, it still performs well and is well received by users.
Our applications are mainly in complex CNC boring and milling machines, machining centers, gantry machining centers, five-sided machining centers, and high-grade grinding machines.

Table 2 SINUMERIK 840C function table

Gift Paper Bag

Gift Paper Bag,Custom Paper Gift Bags,Recycled Paper Gift Bags,Paper Gift Bags With Handles

Wenzhou Mingda Printing Industry Co., Ltd. , https://www.mingdaprinting.com