Wednesday, February 25, 2009

CNC machine tool repair the basic requirements

Technical information is a guide to repair it in the repair work plays a vital role. Through the use of technical information can greatly improve the efficiency of repair and maintenance of accurate wins. Generally speaking, for major repair of CNC machine tool failure. In an ideal state, should have the following technical data:
CNC machine tool instructions ⑴ use it by the machine tool manufacturers are well prepared to provide a random bed of random information. Machine instructions typically include the use and maintenance of F-related elements.
1) machine tool operations and the steps
2) machine tool main drive system and major mechanical components Schematic diagram of the structure.
3) Machine hydraulic, pneumatic, lubrication system diagram
4) machine to install and adjust the measures and steps
5) Machine Tool Electrical Control Schematic
6) machine using the special functions and descriptions.
Numerical control system operation, programming instructions (or use the manual), it is caused by the preparation of CNC system manufacturer CNC System User's Guide, usually including the contents of F:
1) CNC panel Description
2) CNC system specific steps (including manual, automatic, test run, such as steps. As well as procedural, parameters such as input, editing, set up and display methods).
3) processing procedures, as well as input formats, procedures for the preparation method, the basic format of the directive, as well as represent the meaning.
In some systems it may include system debugging, maintenance of substantial information, such as: "Machine parameters" note, warning of significantly less than treatment methods, and the system connection diagram and so on. It is the repair and operation of CNC machine tools must reference one of the technical information.
⑶ PLC list of procedures which are machine tool plant in accordance with the specific control requirements of machine tool design, the preparation of the machine tool control software, PLC program included the implementation of machine tool movements, as well as the conditions necessary for the implementation of action, it shows the command signal detection components and the implementation of components of all the logical relationship between. With PLC procedures, maintenance personnel can quickly find the reasons for failure, it is the repair process of CNC machine tools most frequently used, the most important information in some systems (such as FANUC system, SIEMENS802D, etc.), the use of numerical control system can be directly on the display PLC program for dynamic testing and observation, it provides a great deal of repair facilities, therefore, must be skilled in the repair skills of handling and use of the skills
⑷ list of machine parameters which are produced by the machine tool factory in accordance with the actual situation of the numerical control system and adjust the settings. Machine system and machine parameters are among the "bridge", it not only directly determines the system configuration and functions, but also related to machine tool dynamic and static performance and accuracy of repair is therefore an important basis for machine tool and reference. In the repair should be at any time reference system, "Machine parameters" clearance status of the settings to adjust, repair machine tools; particularly in the replacement of numerical control system module. Must set the original record of machine parameters for machine tool function.
CNC ⑸ connection description, functional description of the information from the CNC system manufacturer is usually available only to the preparation of machine tool manufacturers as a needle-based information. Maintenance personnel from the machine or system manufacturer production, marketing departments have been provided. Description of the connection system, the functional specification not only contains more than a more detailed electrical schematic diagram of the system to connect between the various parts of the requirements and description, but also includes the principle of ring signals are not reflected in the functional description are CNC repair, especially check the electrical wiring of an important reference.
⑹ servo drive system, the spindle drive system using the specification it is the servo system and the principles of the spindle drive system and connection instructions, including servo, spindle status display and alarm display, the drive debug, set points, signals, voltage, current test point, the drive set up the parameters and significance of such areas as content, for the servo drive system, the spindle drive system repair reference.
⑺ PLC and programming it using the machine are used in the external or built-in PLC use programming instructions. Through the PLC's instructions, maintenance personnel can function through the PLC and the instructions indicate. Analysis, understanding PLC procedures. And thus a detailed understanding and analysis of machine tool movements process, action condition, action-shun shore, as well as the logical relationship between the signal and, if necessary PLC can also revises part of the procedure.
⑻ Machine feature of major ancillary instructions and data in the machine tools often use more features such as digital turntable, automatic tool changing device, lubrication and cooling system, etc. Chip New Zealand. These features, and its manufacturers generally provide a more complete use instructions, machine tool manufacturers should be available to users with a hard feature event of the failure of reference. These are under ideal circumstances should be prepared by its technical information, but the actual repair is often difficult to do this. Therefore, when necessary, maintenance personnel should be through on-site mapping, accumulation, etc. End peacetime Pu, to sort out the relevant technical information.
⑼ This is a maintenance staff of the machine tool repair and maintenance records of the process of summing up the status of the best clearance are: to deal with their own maintenance staff to carry out each step are detailed repair records, regardless of whether the judge was correct. This will not only help to further repair, but also contribute to the maintenance personnel with experience levels.

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