公开(公告)号：US20240139895A1

公开(公告)日：2024-05-02

申请号：US18493876

申请日：2023-10-25

Applicant: OKUMA CORPORATION

Inventor： Yukio GOTO ,  Satoshi AOYAMA ,  Hikaru ARAI

IPC: B23Q11/10

CPC classification number: B23Q11/1069

Abstract: A cutting fluid circulation device includes a tank reservoir, a drum filter, and a pump. The tank reservoir stores cutting fluid discharged from a machine tool. The drum filter is disposed in the tank reservoir. The drum filter performs as a primary filter that filters cutting fluid. The pump pumps up cutting fluid in the tank reservoir. An annular flow channel in which the cutting fluid filtered by the drum filter circulates is formed in the tank reservoir. A part of the cutting fluid pumped up by the pump is fed to the drum filter, used for cleaning the drum filter, and then returned to the annular flow channel, and a part of the remaining cutting fluid is fed to a secondary filter disposed outside the tank reservoir, filtered by the secondary filter, and then returned to the annular flow channel.

公开(公告)号：US20240325949A1

公开(公告)日：2024-10-03

申请号：US18602142

申请日：2024-03-12

Applicant: OKUMA CORPORATION

Inventor： Yukio GOTO ,  Satoshi AOYAMA ,  Kenta ONOSHIMA

IPC: B01D36/02 ,  B01D21/26 ,  B01D29/11 ,  B01D33/06 ,  B01D33/50 ,  B01D36/04 ,  B23Q11/10

CPC classification number: B01D36/02 ,  B01D21/267 ,  B01D29/11 ,  B01D33/06 ,  B01D33/50 ,  B01D36/045 ,  B23Q11/1069 ,  B01D2201/084

Abstract: A cutting fluid circulation device includes a first tank reservoir, a primary filter, and a first pump. The tank reservoir stores cutting fluid discharged from a machine tool. The primary filter is provided in the first tank reservoir and filters the cutting fluid. The first pump pumps up the cutting fluid filtered by the primary filter in the first tank reservoir. The first tank reservoir is partitioned into a filtration tank in which the primary filter is disposed, a pumping-up tank in which the first pump is disposed, and a connecting channel in which the cutting fluid in the filtration tank is allowed to flow into the pumping-up tank. The connecting channel has an identical channel width along an entire length thereof, or at least a portion of the channel width is narrowed stepwise or continuously from the filtration tank to the pumping-up tank.