Device and method for removing paint layer on top oil pipe of stator of alternating-current generator

Abstract

The invention relates to the field of automatic paint removal of aviation parts, in particular to an alternating-current generator stator top oil pipe paint layer removing device and a removing method thereof.The removing device comprises a table board and further comprises a product shifting unit, a paint layer removing unit, a dust collecting unit, a height adjusting unit and an image collecting unit; the paint removing method comprises the following specific paint removing steps that S1, a paint layer of the top oil pipe is scanned; s2, detecting a white point, if not, ending, and if yes, generating a removal path; s3, executing removal; the device is simple in mechanism, low in manufacturing cost, high in automation degree and convenient to operate, height adjustment of the paint layer removing unit is achieved through the first lead screw sliding table assembly, the second lead screw sliding table assembly and the supporting plate, the alternating-current generator stator top oil pipe paint layer removing process is safe and reliable, manpower waste caused by manual removing is avoided, the working efficiency is improved, and the working efficiency is improved. And the process is efficient and convenient.

Description

Technical Field

[0001] The invention relates to the field of automatic paint removal of aviation components, in particular to a device and a method for removing paint from an oil pipe on a stator top of an alternator. Background Art

[0002] During the testing of the aircraft AC generator stator, oil leakage may occur from the top oil pipe. However, due to the obstruction of the thick paint layer on the outside, the oil leakage from the top oil pipe of the stator is not easy to be discovered during the AC generator test. Therefore, when repairing the AC generator, the paint layer of the top oil pipe needs to be removed. However, due to the thick paint layer, manual polishing is time-consuming and labor-intensive.

[0003] Chinese patent publication number CN114612894A discloses a device and method for rapid automated paint removal of complex curved parts. The device uses an image recognition device, paint removal equipment, and a host computer to identify the paint layer on the curved part, develop a machining trajectory, and then automatically remove the paint. While this invention is suitable for specific parts, the high cost of paint removal shot blasting makes it unsuitable for removing paint from stator oil pipes on alternators.

[0004] In order to improve production efficiency, it is necessary to design a device for removing the paint layer on the top oil pipe of the AC generator stator to solve the problem of removing the paint layer on the top oil pipe of the AC generator stator. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a device and method for removing the paint layer on the top oil pipe of the AC generator stator.

[0006] A device for removing paint from the oil pipe on the top of an AC generator stator, comprising a table and:

[0007] Product shifting unit, used to control the movement of the AC generator stator in the working area and the placement area;

[0008] A paint removal unit is used to remove the paint from the oil pipe on the top of the AC generator stator;

[0009] A dust collection unit is used to collect dust generated by grinding;

[0010] Height adjustment unit, to adjust the height of the paint removal unit;

[0011] Image acquisition unit, which collects photos and works with the paint removal unit to perform precise paint removal. The specific tool used is an industrial camera;

[0012] It also includes an emergency stop button that can be used to stop the vehicle in an emergency in the event of an accident to prevent injury to employees.

[0013] The product shifting unit includes a cylinder arranged on the table top, a telescopic rod connected to the cylinder, and a tray connected to the telescopic rod.

[0014] The paint layer removal unit includes a first motor, a lead screw slide for controlling the left and right reciprocating motion of the first motor, and a flap wheel gauze grinding head connected to the first motor through a rotating shaft.

[0015] The screw slide includes a first guide rail arranged on the table top, a first servo motor and a first rotary encoder arranged on the first guide rail, and a guide rail arranged on the table top that cooperates with the first servo motor to move the flap wheel gauze grinding head.

[0016] The dust collection unit includes a second motor, a fan cover connected to the second motor, an air duct, and a dust suction fan.

[0017] The fan cover is provided with a pull-out dust box.

[0018] The height adjustment unit includes a support plate, a lead screw slide assembly 1 and a lead screw slide assembly 2 symmetrically distributed on both sides of the support plate.

[0019] The first lead screw slide assembly includes a third guide rail, a third servo motor arranged on the third guide rail, and a third rotary encoder matched with the third servo motor.

[0020] The second lead screw slide assembly includes a second guide rail, a second servo motor arranged on the second guide rail, and a second rotary encoder matched with the second servo motor.

[0021] A method for removing the paint layer from the oil pipe on the top of the stator of an AC generator, the specific steps of which are as follows:

[0022] S1, top oil pipe paint layer scanning;

[0023] S2. Detect white spots. If there are none, terminate the process. If there are, generate a removal path.

[0024] S3, perform removal;

[0025] S4: Partial rescanning, repeating step S2.

[0026] The beneficial effects of the present invention are: the present invention has a simple structure, low cost, high degree of automation, and easy operation. The height adjustment of the paint removal unit is achieved through the lever slide assembly 1, the screw slide assembly 2 and the support plate, so that the paint removal process of the oil pipe on the top of the AC generator stator is safe and reliable, avoiding the waste of manpower caused by manual removal, and making the process efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and examples.

[0028] Figure 1 It is a schematic diagram of the top view of the structure of the present invention;

[0029] Figure 2 The side view structure of the present invention is shown as follows Figure 1 ;

[0030] Figure 3 The side view structure of the present invention is shown as follows Figure 2 ;

[0031] Figure 4 This is a schematic diagram of the structure of the dust collecting fan of the present invention;

[0032] Figure 5 It is a schematic diagram of the process of the present invention;

[0033] Figure numerals: 1. tray; 2. table top; 3. first servo motor; 4. first guide rail; 5. first motor; 6. first rotary encoder; 7. cylinder; 8. dust box; 9. second motor; 10. emergency stop button; 11. fan cover; 12. industrial camera; 13. telescopic rod; 14. guide rail; 15. rotating shaft; 16. louver wheel gauze grinding head; 17. air duct; 18. second servo motor; 19. third servo motor; 20. third guide rail; 21. support plate; 22. third rotary encoder; 23. second rotary encoder; 24. second guide rail; 25. dust suction fan. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below.

[0035] like Figures 1 to 5 As shown, a device for removing paint from the oil pipe on the top of the stator of an AC generator includes a table 2 and further includes:

[0036] Product shifting unit, used to control the movement of the AC generator stator in the working area and the placement area;

[0037] A paint removal unit is used to remove the paint from the oil pipe on the top of the AC generator stator;

[0038] A dust collection unit is used to collect dust generated by grinding;

[0039] Height adjustment unit, to adjust the height of the paint removal unit;

[0040] An image acquisition unit collects photos and cooperates with the paint removal unit to perform precise paint removal, specifically using an industrial camera 12;

[0041] It also includes an emergency stop button 10 for implementing emergency stop in case of an accident to prevent injury to employees. If an accident occurs during work, the emergency stop button 10 can be pressed at any time to implement emergency stop.

[0042] The product shifting unit includes a cylinder 7 arranged on the table top 2, a telescopic rod 13 connected to the cylinder 7, and a tray 1 connected to the telescopic rod 13.

[0043] The paint layer removal unit includes a first motor 5 , a lead screw slide for controlling the left and right reciprocating motion of the first motor 5 , and a flap wheel gauze grinding head 16 connected to the first motor 5 via a rotating shaft 15 .

[0044] The screw slide includes a first guide rail 4 arranged on the table top 2, a first servo motor 3 and a first rotary encoder 6 arranged on the first guide rail 4, and a guide rail 14 arranged on the table top 2 and cooperating with the first servo motor 3 to move the shutter wheel gauze grinding head 16. The screw slide composed of the first servo motor 3, the first guide rail 4, and the first rotary encoder 6 is used to control the left and right reciprocating motion of the first motor 5, and the paint removal range is large.

[0045] The dust collection unit includes a second motor 9, a fan cover 11 connected to the second motor 9, an air duct 17, and a dust suction fan 25, which forms a suction vortex, has low cost and good dust collection effect.

[0046] The fan cover 11 is provided with a pull-out dust box 8. When in use, the fan cover 11 is built in and can be pulled out when full of dust, which is convenient and quick.

[0047] The present invention has a simple structure, low cost, high degree of automation and easy operation. The height adjustment of the paint removal unit is achieved through the lever slide assembly 1, the screw slide assembly 2 and the support plate 21, so that the paint removal process of the oil pipe on the top of the AC generator stator is safe and reliable, avoiding the waste of manpower caused by manual removal, and making the process efficient and convenient.

[0048] The height adjustment unit includes a support plate 21, a screw slide assembly 1 and a screw slide assembly 2 symmetrically distributed on both sides of the support plate 21, and the screw slide assembly 1, the screw slide assembly 2 and the support plate 21 realize the height adjustment of the paint layer removal unit.

[0049] The first lead screw slide assembly includes a third guide rail 20 , a third servo motor 19 disposed on the third guide rail 20 , and a third rotary encoder 22 coordinated with the third servo motor 19 .

[0050] The second lead screw slide assembly includes a second guide rail 24 , a second servo motor 18 disposed on the second guide rail 24 , and a second rotary encoder 23 coordinated with the second servo motor 18 .

[0051] A method for removing the paint layer from the oil pipe on the top of the stator of an AC generator, the specific steps of which are as follows:

[0052] S1. Scanning the paint layer on the top oil pipe: The operator places the AC generator stator with the paint layer to be removed into the tray 1; after clicking the start button, the industrial camera 12 begins scanning;

[0053] S2. Detect white spots. If no white spots are found, the process ends. If white spots are found, a removal path is generated. The control system first activates cylinder 7 to drag the AC generator stator in tray 1 under the flapper gauze grinding head 16. The second servo motor 18 and the third servo motor 19 are activated to adjust the paint removal unit on the tray to a specified height so that it contacts the oil pipe at the top of the AC generator stator.

[0054] S3. Execute removal: The first motor 5 starts to work, driving the flap wheel gauze grinding head 16 to rotate and remove the paint layer on the oil pipe on the top of the AC generator stator. At the same time, the first servo motor 3 drags the first guide rail 4 to control the first motor 5 to move back and forth. During the grinding process, the second motor 9 drives the dust suction fan 25 to work and absorb dust, and the absorbed dust is collected in the dust box 8.

[0055] S4. During the paint layer removal process, the industrial camera 12 collects the paint layer image of the oil pipe on the top of the AC generator stator in real time. At the same time, the first rotary encoder 6, the second rotary encoder 23, and the third rotary encoder 22 transmit the position information of the support plate 21 and the first motor 5 in real time, and upload it to the control system for analysis to see if there is any white paint that has not been removed completely.

[0056] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for removing paint from the oil pipe on the top of an AC generator stator, comprising a table (2), characterized in that: Also includes: Product shifting unit, used to control the movement of the AC generator stator in the working area and the placement area; A paint removal unit is used to remove the paint from the oil pipe on the top of the AC generator stator; A dust collection unit is used to collect dust generated by grinding; Height adjustment unit, to adjust the height of the paint removal unit; An image acquisition unit, which collects photos and cooperates with the paint removal unit to perform precise paint removal, and the specific tool used is an industrial camera (12); And an emergency stop button (10) for realizing emergency stop in case of an accident to prevent injury to employees.

2. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 1, characterized in that: The product shifting unit comprises a cylinder (7) arranged on a table top (2), a telescopic rod (13) connected to the cylinder (7), and a tray (1) connected to the telescopic rod (13).

3. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 1, characterized in that: The paint layer removal unit comprises a first motor (5), a lead screw slide for controlling the left and right reciprocating motion of the first motor (5), and a flap wheel gauze grinding head (16) connected to the first motor (5) via a rotating shaft (15).

4. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 3, characterized in that: The screw slide comprises a first guide rail (4) arranged on a table top (2), a first servo motor (3) and a first rotary encoder (6) arranged on the first guide rail (4), and a guide rail (14) arranged on the table top (2) and cooperating with the first servo motor (3) to move a flapper gauze grinding head (16).

5. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 1, characterized in that: The dust collection unit comprises a second motor (9), a fan cover (11) connected to the second motor (9), an air duct (17), and a dust suction fan (25).

6. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 5, characterized in that: The fan cover (11) is internally provided with a dust collecting box (8) that can be pulled out.

7. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 1, characterized in that: The height adjustment unit comprises a supporting plate (21), a lead screw slide assembly 1 and a lead screw slide assembly 2 symmetrically distributed on both sides of the supporting plate (21).

8. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 7, characterized in that: The screw slide assembly comprises a third guide rail (20), a third servo motor (19) arranged on the third guide rail (20), and a third rotary encoder (22) matched with the third servo motor (19).

9. The device for removing paint from the oil pipe on the top of the stator of an AC generator according to claim 7, characterized in that: The second lead screw slide assembly comprises a second guide rail (24), a second servo motor (18) arranged on the second guide rail (24), and a second rotary encoder (23) matched with the second servo motor (18).

10. A method for removing paint from the top oil pipe of an AC generator stator using the device for removing paint from the top oil pipe of an AC generator according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1, top oil pipe paint layer scanning; S2. Detect white spots. If there are none, terminate the process. If there are, generate a removal path. S3, perform removal; S4: Partial rescanning, repeating step S2.

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