Table of contents
3QLCLM
Edition: 04/2014
2
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 F
Sp
0 ................................................................................................................................ 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
