Chip disposal device of machine tool

Patent metadata

Field	Value
Publication number	US-9339907-B2
Application number	US-201414316272-A
Country	US
Kind code	B2
Filing date	Jun 26, 2014
Priority date	Jun 26, 2013
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

To provide a chip disposal device of a machine tool which surely separates and collects a cutting fluid adhering to a chip lump, thereby capable of reducing an amount of the cutting fluid discharged to the outside of the machine. The chip disposal device includes a liquid separating part 65 which separates and collects a cutting fluid adhering to chips, the liquid separating part 65 has a mounting part 66 which is provided continuously from an inclined discharge surface 20 a and is inclined so as to get lower as it goes more apart outward from the inclined discharge surface 20 a, and to which a first chip lump a 1 conveyed by a first scraping plate 36 a is transferred. Then, the first chip lump a 1 on the mounting part 66 stays on the mounting part 66 until dropping by being pushed by a second chip lump a 2 conveyed by a second scraping plate 36 b following the first scraping plate 36 a.

First claim

What is claimed is:

1. A chip disposal device of a machine tool, the chip disposal device comprising:
a device casing having a storage tank to/in which chips and a cutting fluid are dropped and stored;
a chip conveyor which has a pair of endless driving members moving round inside and outside the storage tank and scraping plates disposed between the driving members at an interval in a moving direction and which discharges the chips from the inside of the storage tank to the outside of the storage tank along an inclined discharge surface of the device casing; and
a liquid separating part which is provided on a portion, of the inclined discharge surface, above a liquid level of the storage tank to separate and collect the cutting fluid adhering to the chips,
wherein the liquid separating part has a plurality of stages of mounting parts which are provided continuously from the inclined discharge surface, are each disposed at an inclination angle so that a portion thereof more apart outward from the inclined discharge surface get lower and to which a first chip lump conveyed by the first scraping plate is transferred, the inclination angle of the mounting part on a lower stage being set larger, and
wherein the first chip lump on the mounting part on each of the stages stays on the mounting part on each of the stages until dropping by being pushed by at least one second chip lump conveyed by at least one second scraping plate which follows the first scraping plate, and while the chip lump stays, the cutting fluid adhering to the chips is separated and collected.

2. The chip disposal device of the machine tool according to claim 1 ,
wherein the liquid separating part has a folded portion continuous from the mounting part on each of the stages and folded back so as to be located under the mounting part on each of the stages, and the separated cutting fluid moves toward the inclined discharge surface down on the folded portion.

3. A chip disposal device of a machine tool, comprising:
a device casing including a storage tank to which and in which chips and a cutting fluid are dropped and stored, and including an inclined discharge surface;
a chip conveyor including a pair of endless driving members moving round inside and outside the storage tank and scraping plates disposed between the driving members at an interval in a moving direction, the chip conveyor being configured to discharge a first lump of the chips from the inside of the storage tank to the outside of the storage tank along the inclined discharge surface; and
a liquid separating part being configured on a portion of the inclined discharge surface above a level surface of the cutting fluid in the storage tank to separate the cutting fluid from the first lump,
the liquid separating part including a first mounting part and a second mounting part being arranged separate from the first mounting part and arranged closer to the level surface than the first mounting part in a vertical direction perpendicular to the level surface,
the first mounting part inclining at a first angle with respect to the level surface,
the second mounting part inclining at a second angle with respect to the level surface ,
the first angle being smaller than the second angle.

4. The chip disposal device of the machine tool according to claim 3 , further comprising:
a first folded portion extending from an end of the first mounting part in a direction towards the inclined discharge surface, wherein
the cutting fluid is guided by the first folded portion to the storage tank, after being separated from the first lump.

5. The chip disposal device of the machine tool according to claim 3 , wherein
the first lump stays on the first mounting part until being pushed by at least a second lump of the chips conveyed subsequent to the first lump, and
while the first lump stays on the first mounting part, the cutting fluid is separated from the first lump.

6. The chip disposal device of the machine tool according to claim 3 , further comprising: a collection passage portion on which the cutting fluid returns to the storage tank after being separated from the first lump at the first mounting part.

Assignees

• Dmg Mori Seiki Co Ltd

Inventors

• Matsuyama Tomoyoshi
• Kakutani Masahide
• Kitade Yuhei
• Oshima Ryutaro
• Kichibayashi Takuya

Classifications

• B23Q11/0057 Primary

  outside the working area · CPC title

• B01D43/00

  Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration (flotation processes B03D1/00; drying solid materials or objects F26B) · CPC title

• B01D33/04

  with filtering bands or the like supported on cylinders which are impervious for filtering · CPC title

• Y02P70/171

  Cross-Sectional Technologies · mapped topic

• Y10T409/304088

  with means to remove chip · CPC title