Internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system and method

Patent metadata

Field	Value
Publication number	US-11794297-B2
Application number	US-202117341326-A
Country	US
Kind code	B2
Filing date	Jun 7, 2021
Priority date	Nov 9, 2020
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

The present disclosure provides an internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system and method, relating to the field of milling lubrication. The system includes: a vision system, configured to acquire a real-time milling depth of a workpiece and send the real-time milling depth to a lubrication manner controller for processing; a lubrication system, including an internal cooling system and an external cooling system connected together to a cutting fluid supply source through a reversing device; and the lubrication manner controller, configured to communicate with the vision system and the lubrication system respectively, and control the reversing device to act according to a set milling depth threshold and data acquired by the vision system, so as to adjust and switch to the internal cooling system or the external cooling system to work. Milling depth data of a machine tool is collected, the milling depth data is transmitted to a control center for data analysis and processing, the data is compared with an initially set internal cooling/external cooling switching threshold to obtain the most suitable cooling and lubrication manner under current machining conditions of the machine tool, and the control center controls the internal cooling and external cooling systems according to the obtained result to realize intelligent switching of the cooling and lubrication manner between internal cooling and external cooling.

First claim

What is claimed is:

1. An internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system, comprising:
a vision system, configured to acquire a real-time milling depth of a workpiece and send the real-time milling depth to a lubrication manner controller for processing;
a lubrication system, comprising an internal cooling system and an external cooling system connected together to a cutting fluid supply source through a reversing device; and
the lubrication manner controller, configured to communicate with the vision system and the lubrication system respectively, and control the reversing device to act according to a set milling depth threshold and data acquired by the vision system, so as to adjust and switch to the internal cooling system or the external cooling system to work;
wherein when the external cooling system works, droplets sprayed from a nozzle device of the external cooling system impact a heat source surface and spread to form a liquid film along the heat source surface.

2. The internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 1 , wherein the vision system comprises an image collection device and a cradle head, the image collection device is mounted on the self-stabilizing cradle head, and the image collection device is configured to be mounted on a machine tool and acquire a real-time milling depth image of the workpiece.

3. The internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 1 , wherein the reversing device comprises a reversing base, a reversing channel is arranged inside the reversing base, an inlet of the reversing channel is butted with the cutting fluid supply source through a pipeline, a first outlet of the reversing channel communicates with the internal cooling system, a second outlet of the reversing channel communicates with the external cooling system, a reversing block is mounted in the reversing channel, and the reversing block is capable of blocking the first outlet and/or the second outlet by rotation.

4. The internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 3 , wherein the reversing base is provided with a pressure regulating structure and a pressure relieving structure, and both the pressure regulating structure and the pressure relieving structure communicate with the reversing channel.

5. The internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 1 , wherein the external cooling system comprises the nozzle device, a telescopic arm module and a nozzle angle module, the nozzle device is mounted on the telescopic arm module through the nozzle angle module, and the nozzle device is capable of changing a relative position to the workpiece through the telescopic arm module and changing a direction of an output end of the nozzle device through the nozzle angle module.

6. The internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 5 , wherein the telescopic arm module comprises a telescopic arm support, an X-axis action arm, a Y-axis action arm and a Z-axis action arm, the X-axis action arm is mounted on the telescopic arm support through the Z-axis action arm, the Y-axis action arm is mounted on the telescopic arm support, and the nozzle angle module is mounted at an output end of the Y-axis action arm by magnetic force.

7. The internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 5 , wherein the nozzle device comprises a gas pipe, a liquid pipe and a gas-liquid pipe, one end of the gas pipe communicates with a gas source, the other end communicates with the gas-liquid pipe with an axis forming a set included angle with an axis of the gas-liquid pipe, one end of the liquid pipe communicates with the cutting fluid supply source through the reversing device, the other end is coaxially butted with the gas-liquid pipe, a gas-liquid mixing cavity is formed inside the gas-liquid pipe, and the gas-liquid mixing cavity communicates with the outside through an opening at one end of the gas-liquid pipe away from the liquid pipe.

8. The internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 5 , wherein the nozzle angle module comprises a first rotation module and a second rotation module, the nozzle device is mounted at an output end of the second rotation module, the second rotation module is mounted at an output end of the first rotation module, and the nozzle angle module is configured to change the direction of the output end of the nozzle device.

9. An internal cooling/external cooling-switching milling minimum-quantity-lubrication method using the internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system according to claim 1 , comprising the following steps:
acquiring, by the vision system, a real-time milling depth image of a workpiece and transmitting the real-time milling depth image to the lubrication manner controller for processing;
determining a lubrication manner under current conditions and controlling the reversing device to act according to a set milling depth threshold of the lubrication manner controller to make the internal cooling system or the external cooling system work;
delivering, by the internal cooling system, a lubricating fluid to the internal cooling pipe of the cutting tool for cyclic heat transfer to realize cooling and lubrication; and mixing, by the external cooling system, the lubricating fluid with a gas, and spraying the mixture to a machining position of the workpiece through the nozzle device to realize cooling and lubrication.

10. The internal cooling/external cooling-switching milling minimum-quantity-lubrication method according to claim 9 , wherein droplets output from the external cooling system impact a heat source surface and spread to form a liquid film along the heat source surface to perform heat transfer on the heat source surface.

Assignees

• Univ Qingdao Technology
• Shanghai Jinzhao Energy Saving Tech Co Ltd
• Shanxi Jinzhao Aviation Tech Co Ltd

Inventors

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

Classifications

• B23Q11/10 Primary

  Arrangements for cooling or lubricating tools or work · CPC title

• B23C5/28

  Features relating to lubricating or cooling · CPC title

• B23Q11/1015

  by supplying a cutting liquid through the spindle · CPC title

• B23Q11/1046 Primary

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

• B23Q17/249

  using image analysis, e.g. for radar, infrared or array camera images · CPC title