CN111251050A

CN111251050A - Automatic equipment for intelligent manufacturing and processing of aviation annular parts

Info

Publication number: CN111251050A
Application number: CN201811468433.4A
Authority: CN
Inventors: 王芝桥; 于鹤霖; 冯优; 郭永明
Original assignee: Shenyang Liming International Power Industry Co ltd
Current assignee: Shenyang Liming International Power Industry Co ltd
Priority date: 2018-12-03
Filing date: 2018-12-03
Publication date: 2020-06-09

Abstract

The invention relates to an automatic machine tool machining device, which utilizes a robot to automatically grab and place a workpiece to be machined on a machine tool, and the robot automatically takes the workpiece off the machine tool after the workpiece is machined. The device comprises a rotary worktable, wherein the worktable is provided with four stations which are respectively used for placing workpieces to be machined and finished workpieces after being machined.

Description

Automatic equipment for intelligent manufacturing and processing of aviation annular parts

Technical Field

The invention relates to an automatic device for machining a machine tool, in particular to an automatic device capable of automatically feeding and discharging materials for the machine tool.

Background

At present, the machining and feeding of parts such as casings of large bypass ratio aircraft engines are carried manually and then placed on a machine tool. And after the parts are machined, the workers take the parts off the machine tool. The defects of the mode are that the manual labor consumption is large, the workpiece needs to be installed and taken down manually, and the part is easy to knock and scrap in the carrying process. The robot is adopted to automatically place the workpiece to be machined on the machine tool, and the robot takes the workpiece off the machine tool after the workpiece to be machined is machined. The robot is used for automatically feeding and discharging materials, so that the labor intensity of workers can be reduced, and the labor cost is saved.

Disclosure of Invention

According to the invention, the robot is used for automatically grabbing the workpiece to be machined and placing the workpiece on the machine tool, and the robot automatically takes the workpiece off the machine tool after the workpiece is machined. The invention relates to a rotary worktable, which is provided with four stations, wherein two stations of the four stations are used for placing workpieces to be machined, and the other two stations are used for placing finished workpieces after machining. The execution of all actions and the confirmation of the completion of the actions are controlled by a PLC and a position detection switch, so that the positions of grabbing and placing parts are accurate, and the positioning is reliable.

An end effector is designed for automatically picking machined parts.

By applying the technology of the invention, eight parts can be automatically processed after one-time feeding. The whole big bypass of the invention is changed into the processing flow of feeding and discharging the parts such as the case of the aircraft engine:

1) the worker places eight workpieces to be processed on the initial workpiece placing station of the turntable. Automatically detecting whether the part is placed correctly or not at the part placing station, and automatically correcting again until the part is placed correctly if the part is not placed correctly;

2) the robot picks the workpiece and places it on the machine tool fixture. Feeding back a part clamping correct signal to a controller through airtightness detection on the clamp, and sending a machining instruction to a machine tool by the controller to start machining the part;

3) returning the robot end effector to the initial position;

4) and after the workpiece is machined, rotating the turntable by 90 degrees anticlockwise. After the position is in place, feeding back a position signal to the controller and executing the next step;

5) the end effector picks up a workpiece from the machine tool and places it on the turntable. After the position is in place, feeding back a position signal to the controller and executing the next step;

6) the turntable is rotated 90 degrees further clockwise. After the position is in place, feeding back a position signal to the controller and executing the next step;

7) the above work was repeated 3 times (four parts at one station were finished). The turntable is rotated 180 degrees clockwise. After the position is in place, feeding back a position signal to the controller and executing the next step;

8) the end picking device grabs and places the workpiece to be machined on a machine tool fixture. Feeding back a part clamping correct signal to a controller through airtightness detection on the clamp, and sending a machining instruction to a machine tool by the controller to start machining the part;

9) returning the robot end effector to the initial position;

10) and after the workpiece is machined, rotating the turntable by 90 degrees anticlockwise. After the position is in place, feeding back a position signal to the controller and executing the next step;

11) the end effector picks up a workpiece from the machine tool and places it on the turntable. After the position is in place, feeding back a position signal to the controller and executing the next step;

12) the turntable is rotated 90 degrees further clockwise. After the position is in place, feeding back a position signal to the controller and executing the next step;

13) repeating the work for 3 times (finishing the processing of four parts on the other station);

14) taking down four machined workpieces at an initial position;

15) the turntable is rotated 90 degrees counterclockwise. The whole process is finished;

16) and the positioning surfaces of all stations of the rotary table are automatically cleaned, so that the parts are reliably positioned on the rotary table.

Drawings

FIG. 1 is a schematic view of a turntable, in which: 1-a support seat; 2-a turntable; 3-processing the workpiece; 4-machining the workpiece.

Fig. 2 is a schematic view of a jaw, wherein: 5-clamping jaw; 6-a support frame; 7-a cylinder; 8-connecting rod; 9-guide rail.

Detailed Description

Rotating the working table:

the turntable is realized by adopting a mechanical structure of a worm and a worm, and the motor belt, the speed reducer, the worm and the worm wheel realize that the whole device is transmitted.

The robot comprises:

and (4) outsourcing, namely, selecting a 5-freedom-degree robot to realize the function of appeasing.

An end effector:

the end effector adopts the cylinder as power pack, and linear guide does the direction, realizes snatching the part.

Claims

1. An automated machine tool process:

a worker can simultaneously place eight workpieces to be processed on the initial workpiece placing station of the turntable; automatically detecting whether the part is placed correctly or not at the part placing station, and automatically correcting again until the part is placed correctly if the part is not placed correctly; after the placing position is correct, the controller sends an instruction to the robot, and the robot grabs a workpiece and places the workpiece on a machine tool clamp; feeding back a part clamping correct signal to a controller through airtightness detection on the clamp, and sending a machining instruction to a machine tool by the controller to start machining the part; returning the robot end effector to the initial position; after the workpiece is machined, the turntable rotates 90 degrees anticlockwise, in-place signals are fed back to the controller, the controller sends instructions to the robot, and the robot grabs the machined workpiece from the machine tool through the end effector and places the workpiece on the turntable; after the position is in place, feeding back a position signal to the controller and executing the next step; the turntable rotates 90 degrees clockwise; feeding back a position signal to the controller after the position is in place;

repeating the work for 3 times (four parts on one station are processed);

the turntable rotates 180 degrees clockwise, after the turntable is in place, an in-place signal is fed back to the controller, the controller sends an instruction, the robot grabs and places the workpiece to be machined on a machine tool fixture through the end effector, the fixture feeds back a part clamping correct signal to the controller through airtightness detection, and the controller sends a machining instruction to the machine tool to start machining the part; returning the robot end effector to the initial position; after the workpiece is machined, rotating the turntable by 90 degrees anticlockwise; after the workpiece is in place, feeding back an in-place signal to the controller, sending an instruction by the controller, and grabbing the workpiece from the machine tool by the robot through the end effector and placing the workpiece on the turntable; feeding back a position signal to the controller after the position is in place; the turntable rotates 90 degrees clockwise; feeding back a position signal to the controller after the position is in place;

repeating the work for 3 times (finishing the processing of four parts on the other station);

taking down four machined workpieces at an initial position; the turntable rotates 90 degrees anticlockwise; the whole process is finished;

and the positioning surfaces of all stations of the rotary table are automatically cleaned, so that the parts are reliably positioned on the rotary table.

2. A carousel structure for automation equipment of machine tool machining:

as shown in fig. 1, the turntable is located on the support base and can rotate 360 degrees, the workpiece to be machined is located on two symmetrical stations, and the machined workpiece is located on the other two symmetrical stations.

3. A carousel structure for automation equipment of machine tool machining:

as fig. 2 is a schematic diagram of the end effector, the air cylinder pushes the clamping jaw to move outwards on the guide rail through the connecting rod, the clamping jaw is loosened, the part is released on a machine tool or a turntable, and the air cylinder pulls the clamping jaw to move inwards on the guide rail through the connecting rod to clamp the part; the support frame is a fixing device of the whole mechanism.