Apparatus for preventing thermal deformation of a machine tool

An apparatus for preventing heat deformation of a machine tool comprising a feed means which has a cooling means for cooling a heat transfer fluid and a pumping out means for pumping out said heat transfer fluid cooled by said cooling means, a heat exchanging means which is supplied with said heat transfer fluid from said feed means via a piping means and cools a portion of said machine tool where said heat exchanging means is to be arranged, a discharging means for discharging said heat transfer fluid passed through said heat exchanging means, and a flow control means for controlling a flow rate of said heat transfer fluid passing through said heat exchanging means, wherein said heat exchanging means has at least one heat exchanging unit which is made entirely of a flexible material so that it is capable of being expanded and shrunk in accordance with an amount of said heat transfer fluid therein.

A machine tool having an apparatus for preventing heat deformation of said machine tool characterized in that:

• said apparatus for preventing heat deformation of a machine tool comprises a feed means which has a heating means of a heat transfer fluid and a pumping out means for pumping out said heat transfer fluid heated by said heating means, a heat exchanging means which is supplied with said heat transfer fluid from said feed means via a piping means, a discharging means for discharging said heat transfer fluid passed through said heat exchanging means, and a flow control means for controlling a flow rate of said heat transfer fluid passing through said heat exchanging means, wherein said heat exchanging means has at least one heat exchanging unit which is made entirely of a flexible material so that it is capable of being expanded and shrunk in accordance with an amount of said heat transfer fluid therein, and that,
• said machine tool has at least one portion in which said heat exchanging means is accommodated, whereby said portion is heated by said heat exchanging means so as to equalize thermal distribution of said machine tool and suppress thermal deformation thereof.

A machine tool having an apparatus for preventing heat deformation of said machine tool characterized in that:

• said apparatus for preventing heat deformation of a machine tool comprises a feed means which has a cooling means for cooling a heat transfer fluid and a pumping out means for pumping out said heat transfer fluid cooled by said cooling means, a heat exchanging means which is supplied with said heat transfer fluid from said feed means via a piping means, a discharging means for discharging said heat transfer fluid passed through said heat exchanging means, and a flow control means for controlling a flow rate of said heat transfer fluid passing through said heat exchanging means, wherein said heat exchanging means has at least one heat exchanging unit which is made entirely of a flexible material so that it is capable of being expanded and shrunk in accordance with an amount of said heat fluid therein, and that,
• said machine tool has at least one portion in which said heat exchanging means is accommodated, whereby said portion is cooled by said heat exchanging means so as to equalize thermal distribution of said machine tool and suppress thermal deformation thereof.