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    • Wednesday 05 November, 2014 | RSS Feed

    Spindle Fault and Solution

    Spindle Fault and Solution

    Ten Most Common Spindle Failure (Ⅳ)

     

    Normally, replacement cycle of CNC spindle is 3-6 months. So, find the spindle fault and solve it has become more and more important.

    Today, we will continue to list spindle fault and give the expert advice.

     

    9. The ninth spindle fault –

    Router bits could not be clamped.

    You can analysis from the following situation:

     

    (1)  The first situation:

    ①   Reason:

    The displacement quantity of disk spring is too small:

    ②   Result in:

    a)  Router spindle with carbide milling cutter cannot get to the right place;

    b)  Clamping device could not reach correct position;

    c)  Router bit cannot be clamped;

    ③   Solution to this spindle fault:

    Adjust the stroke length of disk spring;

     

    (2)  The second situation:

    ①   Router collets are broken, causing cnc bits cannot be clamped by spindle clamping device;

    ②   You can replace new router collet to solve this spindle fault;

     

    (3)  The third case:

    ①   Disk spring failure;

    ②   How to resolve this spindle fault:

    Change new spring;

     

    (4)  The fourth case:

    ①   Rivets in the tool holder is too long, which would go against spindle clamp device, so that the clamping device could not reach correct position;

    Further to this, CNC tools cannot be clamped;  

    ②   Solution to the rivets:

    a)  Adjust;

    b)  Replace;

    c)  Install correctly;  

     

    10. The tenth spindle fault –

       CNC tools cannot be loosened after clamping;

       Usually, it mainly results from:

    (1)  To hydraulic cylinder, the working stroke and pressure is not enough;  

    You can adjust hydraulic pressure and travel switch to solve this spindle fault;

    (2)  The press fit in disk spring is too tight;

    Solution:

    Adjust screw nut so as to reduce the pressure on the spring;

     

    Besides Spindle Fault and Solution (Ten Most Common Spindle Failure (Ⅳ)),

    You may also interest in:

    (1)  Ten Most Common Spindle Failure (Ⅰ);

    (2)  The Solution to your Spindle Repair Needs (Ⅱ);

    (3)  Solve Spindle Problem (Ⅲ).

     

     

    by astech-cnctools

    Solve Spindle Problem

    Solve Spindle Problem

    Ten Most Common Spindle Failure (Ⅲ)

     

    Now, let's get straight to the point: solve spindle problem!

     

    6. The sixth spindle problem –

        Motor reverse:

    (1)  Check whether motor wiring has phase lack;

    (2)  Usually, this spindle problem is caused by wrong connection;

    ①  Solution: exchange output terminals UVW;

    ②  UVW is the three lines which connect between router converter and motor spindle;

    ③  Warm notice:

     Don't change earth wire; it would be a terrible mistake;

     

    7. The seventh spindle problem –

    CNC spindle stopped rotating:

    Analysis or solution:

    (1)  Router spindle has internal short circuit;

    (2)  Current shield;

    (3)  Converter parameter setting is not right;

    (4)  Cnc converter has its own problem;

    (5)  Control card has a failure;

    (6)  Spindle wire or data line are cut short;

     

    8. The seventh spindle problem –

     Cnc router spindle stopped spinning when taking heavy cuts:

    (1)  The conveyor between spindle motor and machine spindle is too loose:

    ①   Which result in:

    a)  Drive torque is too small, especially during heavy cutting;

    b)  Generate alarm;

    c)  CNC router automatically stopped;

    ②  How to solve:

     Readjust conveyor tension;

     

    (2) There are oil on the conveyor belt surface, which cause belt slipping when cnc machine spindle is rotating;

    You can solve this spindle problem by:

    ①  Cleaning with gas or alcohol;

    ②  Then, dry out;

     

    (3)  Conveyor belt has lost its potency after long using time, which lead to motor torque cannot be applied;

    Change new conveyor to clear this spindle problem;

     

    (4)  The clutch and coupling joint are worn or adjusted too loose:

    ①   It results in:

    a)  Torque transmission error is excessive;

    b)  Spindle is strong shaking or chattering in the process of heavy cutting;

    c)  Occurs alarm;

    d)  Cnc machine stops working automatically;

    ②  Solution to the spindle problem:

     Adjust and change clutch or coupling;

     

    (5)  Router bits are broken:

    Change new carbide cutting tools accordingly, with the feature of:

    ①   Suitable to your processing demand;

    ②   Excellent performance;

    ③   Durable and high-quality (stronger for heavy cuts);

    ④   Good price;

     

     

    Besides Solve Spindle Problem (Ⅲ), you may also interest in:

    (1)  Ten Most Common Spindle Failure (Ⅰ);

    (2)  The Solution to your Spindle Repair Needs (Ⅱ);

    (3)  Spindle Fault and Solution (Ⅳ).

     

     

    by astech-cnctools

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