Device aeronautical aluminum alloy minimum-quantity-lubrication milling machining

Patent metadata

Field	Value
Publication number	US-11975415-B2
Application number	US-202117340753-A
Country	US
Kind code	B2
Filing date	Jun 7, 2021
Priority date	Dec 22, 2020
Publication date	May 7, 2024
Grant date	May 7, 2024

Abstract

An aeronautical aluminum alloy minimum-quantity-lubrication milling machining device includes a machine tool worktable and spindle connected with a machine tool power system. The spindle is connected with a tool holder that is fixed with a cutting tool. The machine tool worktable is provided with a machine tool fixture, the tool holder is connected with a minimum-quantity-lubrication mechanism, the machine tool fixture includes a fixture body that is fixedly provided with a limit block for contact with two adjacent side surfaces of a workpiece, the fixture body is provided with a plurality of clamping elements capable of pressing the workpiece against an upper surface of the fixture body, and a top of the clamping element is provided with a detection member for detecting a relative position between the clamping element and the spindle. The device can avoid interference and contact between a nozzle and the clamping element.

First claim

What is claimed is:

1. A milling machining device being capable of minimum-quantity-lubrication for machining aeronautical aluminum alloy, the milling machining device comprising:
a machine tool worktable, and
a spindle connected with a machine tool power system, the spindle being connected with a tool holder, and the tool holder being fixed with a cutting tool,
wherein the machine tool worktable is provided with a machine tool fixture, the tool holder is connected with a minimum-quantity-lubrication device, the machine tool fixture comprises a fixture body, the fixture body is fixedly provided with a limit block, two adjacent side surfaces of a workpiece are in contact with the fixture body and the limit block, respectively; the fixture body is further provided with a plurality of clamping devices capable of pressing the workpiece against an upper surface of the fixture body, and a top of each of the plurality of clamping devices is provided with a detection member for detecting a relative position between the each of the clamping devices and the spindle;
wherein the minimum-quantity-lubrication-device comprises:
a housing that is rotatable connected with the tool holder and that is fixedly arranged,
a gas channel and a liquid channel capable of communicating with each other are arranged in the housing and the tool holder,
a diversion ring and an atomizing ring that are attached to one another and that are sequentially arranged below the tool holder,
wherein the diversion ring and the atomizing ring are pressed against the tool holder by using a cutting tool chuck connected to the tool holder, the diversion ring is provided with gas diversion slots and liquid slots respectively communicating with the gas channel and the liquid channel, the diversion ring is further provided with liquid spray pipes communicating with the liquid diversion slots, the liquid spray pipes extend into an atomization cavity of the atomizing ring, the atomization ring communicates with the gas diversion slots, and the atomization cavity communicates with a spray hole arranged in the atomizing ring.

2. The milling machining device according to claim 1 , wherein the each of the plurality of clamping devices respectively comprises:
a linear actuator arranged inside the fixture body,
a telescopic part of the linear actuator is connected with a corresponding pressing block through a drive mechanism, and
the linear actuator is capable of driving the corresponding pressing block to move so as to press the workpiece against the upper surface of the fixture body.

3. The milling machining device according to claim 2 , wherein the linear actuator of the each of the plurality of clamping devices respectively comprises:
a cylinder,
a piston that is arranged in the cylinder so as to separate the cylinder into two chambers, each of the two chambers is provided with one gas hole being connected with one of two gas outlets of a solenoid valve through a gas duct, respectively;
wherein the solenoid valves, which are connected with the linear actuators of the plurality of clamping devices, are connected in series through a gas pipe that is connected with a gas source, and each piston is connected with a respective piston push rod that is connected with the corresponding drive mechanism.

4. The milling machining device according to claim 2 , wherein each drive mechanism respectively comprises:
a push rod head connected with the corresponding linear actuator, the push rod head is fixedly provided with a drive pin, the drive pin passes through a V-shaped connected rod through an arc-shaped notch arranged at one end of the V-shaped connecting rod,
wherein a bend of the V-shaped connecting rod is rotatably connected with the fixture body, and the other end of the V-shaped connecting rod is hinged with one end of an L-shaped connecting rod,
wherein the other end of the L-shaped connecting rod is universally connected with the corresponding pressing block, the L-shaped connecting rod is provided with a straight notch, a fixing pin passes through the straight notch, and the fixing pin is fixedly connected with the fixture body.

5. The milling machining device according to claim 1 , wherein the detection member of each clamping device of the plurality of clamping devices is a proximity switch connected to a control system.

6. The milling machining device according to claim 1 , wherein the cutting tool chuck is provided with an arc-shaped notch communicating with the spray hole, and a scattering angle of the arc-shaped notch is greater than a scattering angle of the spray hole.

7. The milling machining device according to claim 1 , wherein
the liquid diversion slots are arranged on an upper surface of the diversion ring, the gas diversion slots are arranged on a lower surface of the diversion ring; the gas diversion slots and the liquid diversion slots are alternately distributed and connected end to end along a circumferential direction of the diversion ring; a center of each of the gas diversion slots is communicated with a gas hole provided from the upper surface of the diversion ring; and a liquid hole provided on both ends of each of the liquid diversion slots is communicated with an end of each of the gas diversion slots connected end to end correspondingly.

8. The milling machining device according to claim 7 , wherein a guide valve is provided on both ends of the each of the gas diversion slots, and a side surface of an end of the guide valve is tangent to the liquid hole to guide a gas into the atomization cavity.

9. The milling machining device according to claim 1 , wherein the housing is further provided with a retaining rod, a liquid channel and a gas channel respectively communicating with the liquid channel and the gas channel in the housing are arranged in the retaining rod, and the liquid channel and the gas channel in the retaining rod are respectively connectable to a cutting fluid source and a gas source.

Assignees

• Univ Qingdao Technology
• Shanxi Jinzhao Aviation Tech Co Ltd

Inventors

• Yang Min
• Ma Hao
• Li Changhe
• Wu Xifeng
• Han Yixue
• Yang Yuying
• Cui Xin
• Zhao Xufeng
• Zhang Naiqing
• Wu Qidong
• Gao Teng
• Zhang Yanbin
• Lu Bingheng
• Liu Mingzheng
• Jia dongzhou
• Zhang Xiaowei
• Wang Xiaoming

Classifications

• B23Q11/1046 Primary

  using a minimal quantity of lubricant (spraying apparatus using a carrying fluid B05B7/00) · CPC title

• B23C1/06

  with one vertical working-spindle · CPC title

• B23C9/00

  Details or accessories so far as specially adapted to milling machines or cutter (drives, control devices, or accessories, in general B23Q) · CPC title

• B23Q3/069 Primary

  for pressing workpieces against a work-table · CPC title

• B23Q11/10

  Arrangements for cooling or lubricating tools or work · CPC title