Cutting fluid tank for machine tool

Patent metadata

Field	Value
Publication number	US-12558752-B2
Application number	US-202217698241-A
Country	US
Kind code	B2
Filing date	Mar 18, 2022
Priority date	Mar 31, 2021
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

Provided is a cutting fluid tank for a machine tool, with which the operator's time and effort for cleaning are reduced and the maintainability is enhanced, without entailing an increase in size. In a tank body, a cutting fluid flow channel having a spiral shape and extending from a tank center region to a tank outer peripheral region is formed by a flow channel forming plate. An inflow port into which a cutting fluid from inside a machining chamber flows is provided at an outer peripheral region of the lid, whereas an outflow port to take out the cutting fluid in the tank body to an outside is provided at a center region of the lid. A pump to pump up and supply the cutting fluid to the machining chamber is provided at the outflow port.

First claim

The invention claimed is:

1 . A cutting fluid tank for a machine tool, comprising: a tank body having a bottom wall that is substantially rectangular in plan view, and four side walls extending upward from a peripheral edge of the bottom wall; and a lid that closes an upward opening of the tank body, wherein
in the tank body, a cutting fluid flow channel having a spiral shape and extending from a tank center region to a tank outer peripheral region is formed by a flow channel forming plate having a spiral part, an inflow port into which a cutting fluid from inside a machining chamber flows is provided at a center region of the lid, whereas an outflow port configured to take out the cutting fluid in the tank body to an outside is provided at an outer peripheral region of the lid, and a pump configured to pump up and supply the cutting fluid to the machining chamber is provided at the outflow port, wherein, the flow channel forming plate has, as components of an outermost peripheral region: a first corner portion provided at a corner region sandwiched between a first side wall and a second side wall; a second corner portion provided at a corner region sandwiched between the second side wall and a third wall; a third corner portion provided at a corner region sandwiched between the third wall and front a side wall; and the outflow port is provided at a fourth corner portion sandwiched between the front side wall and the first side wall.

2 . The cutting fluid tank for a machine tool, according to claim 1 , wherein the flow channel forming plate is formed such that a width of the cutting fluid flow channel is uniform.

3 . The cutting fluid tank for a machine tool, according to claim 1 , wherein a tilted plate being lowered along an advancing direction in which the cutting fluid flows is provided at a region, on the bottom wall of the tank body, opposed to the inflow port.

4 . The cutting fluid tank for a machine tool, according to claim 1 , wherein a plurality of nozzles configured to eject the cutting fluid in the advancing direction of the cutting fluid are provided in the cutting fluid flow channel.

5 . The cutting fluid tank for a machine tool, according to claim 4 , wherein at least one of the plurality of nozzles is provided at a corner region of the tank body where a flow of the cutting fluid changes.

6 . The cutting fluid tank for a machine tool, according to claim 4 , wherein at least one of the plurality of nozzles is provided at an inner side region of the cutting fluid flow channel.

7 . The cutting fluid tank for a machine tool, according to claim 4 , wherein, as a cutting fluid to be ejected from the nozzle, a cutting fluid having been pumped up with the pump and thereafter having passed through a filter is used.

8 . A cutting fluid tank for a machine tool, comprising: a tank body having a bottom wall that is substantially rectangular in plan view, and four side walls extending upward from a peripheral edge of the bottom wall; and a lid that closes an upward opening of the tank body, wherein
in the tank body, a cutting fluid flow channel having a spiral shape and extending from a tank center region to a tank outer peripheral region is formed by a flow channel forming plate having a spiral part, an inflow port into which a cutting fluid from inside a machining chamber flows is provided at an outer peripheral region of the lid, whereas an outflow port configured to take out the cutting fluid in the tank body to an outside is provided at a center region of the lid, and a pump configured to pump up and supply the cutting fluid to the machining chamber is provided at the outflow port, wherein, the flow channel forming plate has, as components of an outermost peripheral region: a first corner portion provided at a corner region sandwiched between a first side wall and a second side wall; a second corner portion provided at a corner region sandwiched between the second side wall and a third sidewall; a third corner portion provided at a corner region sandwiched between the third wall and a fourth side wall; and the inflow port is provided at a fourth corner portion sandwiched between the fourth side wall and the first side wall.

Assignees

• Okuma Machinery Works Ltd

Inventors

• Naramoto Hiroaki

Classifications

• Y02P70/10

  Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working · CPC title

• B23B25/00

  Accessories or auxiliary equipment for turning-machines (for machine tools in general B23Q; cooling or lubricating B23Q11/12) · CPC title

• B23Q11/0067

  chip containers located under a machine or under a chip conveyor · CPC title

• B23Q11/10

  Arrangements for cooling or lubricating tools or work · CPC title

• B23Q11/1015 Primary

  by supplying a cutting liquid through the spindle · CPC title