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Table of contents
1.0 General information about the documentation.................................................................................................4
1.1 General information .................................................................................................................................4
1.2 Explanation of symbols .............................................................................................................................5
1.3 Copyright...................................................................................................................................................5
2.0 Safety instructions............................................................................................................................................6
2.1 General .....................................................................................................................................................6
2.2 Intended use .............................................................................................................................................7
2.3 Operating instructions ...............................................................................................................................8
2.4 Maintenance and repair.............................................................................................................................8
2.5 Safety conditions for power chucks...........................................................................................................9
2.6 Notes.........................................................................................................................................................9
3.0 Transport and storage....................................................................................................................................10
3.1 Packaging, disassembly level .................................................................................................................10
3.2 Transport, handling and storage .............................................................................................................10
4.0 Design and function ......................................................................................................................................11
4.1 General description ...............................................................................................................................11
4.2 Constructive design.................................................................................................................................12
4.2.1 Technical data / main dimensions - power chuck type 3QLCLM.....................................................12
4.2.2 Design of power chuck....................................................................................................................14
4.2.2.1 Chuck complete ...........................................................................................................................14
4.2.2.2 Centrifugal force accessories .....................................................................................................14
4.2.2.3 Body complete.............................................................................................................................15
4.2.2.4 Chuck cover complete..................................................................................................................16
4.2.2.5 Jaw complete...............................................................................................................................17
4.3 Function of the power chuck ...................................................................................................................18
4.3.1 General information: ......................................................................................................................18
4.3.2 Centrifugal force compensation .....................................................................................................19
4.3.3 Lubrication .....................................................................................................................................19
4.3.4 Sealing of the power chuck .............................................................................................................19
4.4 Chuck jaw ..............................................................................................................................................20
4.4.1 General information.........................................................................................................................20
4.4.2 Safety instructions for top jaws ......................................................................................................20
4.5 General safety instructions.........................................................................................................................21
5.0 Clamping force ..............................................................................................................................................22
5.1 General information.................................................................................................................................22
5.2 Clamping force FSp0 ................................................................................................................................22
5.3 Dynamic gripping force ..........................................................................................................................23
5.4 Clamping force calculation .....................................................................................................................24
5.5 Determination of gripping force Fspz required for the machining process .............................................26
5.6 Permissible extension length .................................................................................................................28
6.0 Assembly ......................................................................................................................................................29
6.1 Actions to be taken before assembly .....................................................................................................29
6.1.1 Checking the spindle head for mounting the chuck flange .................................................................29
6.1.2 Checking the mounted chuck flange ..................................................................................................29
6.1.3 Adjustment of the drawbar...................................................................................................................30
6.1.4 Adjustment of the drawbar...................................................................................................................31
6.2 Assembly of the power chuck..................................................................................................................32
6.3 Procedure for assembling the power chuck ...........................................................................................32
6.4 Tightening torques of shaft screws ........................................................................................................34
6.4.1 Tightening torques of the chuck mounting screws: ............................................................................34
6.4.2 Torque of the jaw mounting screws .....................................................................................................34
6.5 Preparations for using the power chuck ................................................................................................36
6.6 Safety instructions .................................................................................................................................36
