Automatic cutting liquid supply apparatus

An automatic cutting liquid supply apparatus for a machine tool which uses various types of cutting tools (1), in which various types of optimal supply conditions including variations over time for each of said cutting tools during operation of said machine tool are set beforehand as a cutting liquid supply quantity (Q) to be supplied to each of the various types of tools (1) in a control means (5) of the machine tool, and said cutting liquid supply quantity (Q) that corresponds to a supply condition is automatically supplied during the use and operation of one of said tools (1), said automatic cutting liquid supply apparatus being characterized in that:

• said control means (5) is comprised of:
• a main control section (5a) which controls driving of a main shaft unit (2) on which said one tool (1) is mounted, and
• an automatic supply control section (5b) which automatically controls said cutting liquid supply quantity (Q);
• wherein
• said supply condition is inputted and displayed by an input means (6) and a display means (7), respectively, which are connected to said control means (5);
• said supply condition is stored in a memory means (8);
• an input signal (Vin) that corresponds to said supply condition is inputted into a variable frequency generating means (5c) from said automatic supply control section (5b);
• said variable frequency generating means (5c) generates an output frequency signal (F) that corresponds to said input signal (Vin) and transmits said output frequency signal (F) to a cutting liquid supply means (3);
• and
• said cutting liquid supply means (3) supplies, by means of a supply pump (3c), the cutting liquid supply quantity (Q) that was set for said one tool, which quantity is proportional to said output frequency signal (F), to a mist generating means (2a) provided inside said main shaft unit, from a cutting liquid tank (3a) that stores a cutting liquid, thus generating a mist-form mixture with compressed air and supplying the mixture to said one tool (1).