In-situ repair equipment for stainless steel pipe joints in aircraft hydraulic systems

Abstract

This invention relates to the field of in-situ repair of stainless steel pipe joints, specifically an in-situ repair device for stainless steel pipe joints in aircraft hydraulic systems. The device includes: an end effector for repairing the conical surface of a non-removable pipe joint; a frame providing overall support and responsible for adjusting the end effector in four directions (up, down, left, and right); and an intelligent controller that controls the parameter settings and start / stop of the end effector via a PLC control program. By adjusting the positions of the support arm and swing arm on the frame on the linear bearing seat and linear slide rail, the cutting tool in the end effector is precisely aligned with the conical surface of the non-removable pipe joint. Power is turned on on the intelligent controller, and the motion parameters of the cutting stepper motor and feed stepper motor are set, causing the motors to drive the cutting tool to rotate, thereby cutting and repairing the conical surface of the pipe joint. This reduces manual intervention, saves labor, and improves work efficiency.

Description

Technical Field

[0001] This invention relates to the field of in-situ repair of stainless steel pipe joints, specifically an in-situ repair device for stainless steel pipe joints in an aircraft hydraulic system. Background Technology

[0002] Current technologies for repairing the conical surfaces of such stainless steel pipe fittings involve disassembling the parts and then machining them on a machine tool. This method has limitations; it can only repair the parts by disassembly and cannot repair the conical surfaces of the stainless steel pipe fittings in situ. It is also ineffective for repairing the conical surfaces of stainless steel pipe fittings that are not removable on aircraft. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes an in-situ repair device for stainless steel pipe joints in aircraft hydraulic systems.

[0004] An in-situ repair device for stainless steel pipe joints in an aircraft hydraulic system, comprising:

[0005] End effector used for repairing the conical surface of non-removable pipe fittings;

[0006] The frame provides support for the entire equipment and is responsible for adjusting the end effector in four directions: up, down, left, and right.

[0007] The intelligent controller, through the PLC control program, is responsible for controlling the parameter settings and start / stop of the end effector.

[0008] Furthermore, the frame includes a linear bearing housing, a support arm mounted on the linear bearing housing, a swing arm mounted on the support arm, two sets of linear slide rails mounted on the frame and cooperating with the two sets of linear bearing housings, and a clamp mounted on the upper linear bearing housing.

[0009] Furthermore, the end effector includes a cutting tool, a rotary assembly that drives the cutting tool to perform rotary cutting on the conical surface of the non-removable pipe joint, a linear feed assembly that drives the cutting tool to perform linear feed on the axis of the conical surface of the non-removable pipe joint, and an auxiliary assembly that assists the rotary assembly and the linear feed assembly in performing repair.

[0010] Furthermore, the rotating assembly includes a cutting stepper motor, a reducer connected to the cutting stepper motor, a first coupling connected to the reducer, and a right-angle head connected to the first coupling for changing the direction of rotational motion.

[0011] Furthermore, the linear feed assembly includes a feed stepper motor, a second coupling connected to the feed stepper motor, a slider connected to the second coupling via a lead screw support and a ball screw, and a linear guide rail on which the slider moves back and forth.

[0012] Furthermore, the slider is fixed on the support plate, thereby driving the rotating assembly to move back and forth, so as to realize that the tool on the rotating assembly can perform linear feed on the axis of the non-removable pipe joint conical surface.

[0013] Furthermore, the auxiliary components include a support plate and a mounting plate, a fixed handle fixed to the swing arm, a limiting ring connected to the lead screw support, a fixing ring connected to the support plate, a positioning sleeve that cooperates with the support plate to achieve fixation, a protective plate connected to the support plate to prevent accidental blade tip splashing caused by blade breakage during tool rotation, a positioning ring fixed to the end face of the non-removable pipe joint to fill the gap between the positioning sleeve and the end face of the non-removable pipe joint, and a supplementary light fixed to the mounting plate to provide illumination during operation.

[0014] Furthermore, the intelligent controller is responsible for controlling the parameters of the cutting stepper motor and the feed stepper motor through a PLC control program.

[0015] The beneficial effects of this invention are:

[0016] This invention adjusts the position of the support arm and swing arm on the frame on the linear bearing seat and linear slide rail, so that the cutting tool in the end effector matches the conical surface of the non-removable pipe joint with high precision. By turning on the power on the intelligent controller and setting the motion parameters of the cutting stepper motor and the feed stepper motor, the motor drives the cutting tool to rotate, thereby cutting and repairing the conical surface of the pipe joint. This reduces manual intervention, saves labor and improves work efficiency. Designed with ergonomic principles, it can meet the requirements of in-situ repair of stainless steel pipe joints in aircraft hydraulic systems and product quality requirements. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the end effector of the present invention. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the end effector of the present invention. Figure 2 ;

[0022] Reference numerals: 1. End effector; 2. Frame; 3. Support arm; 4. Swing arm; 5. Moving handle; 6. Horizontal adjustment wheel; 7. Intelligent controller; 8. Linear bearing seat; 9. Linear guide rail; 10. Clamp; 11. Cutting stepper motor; 12. Feed stepper motor; 13. Reducer; 14. No. 1 coupling; 15. Fixed handle; 16. Slider; 17. Linear guide rail; 18. Lead screw support; 19. Limit ring; 20. Ball screw; 21. Lead screw nut support; 22. Support plate; 23. Guard plate; 24. Right angle head; 25. Supplementary light; 26. No. 2 coupling; 27. Positioning sleeve; 28. Cutting tool; 29. ​​Non-removable pipe joint; 30. Positioning ring; 31. Fixed ring; 32. Mounting plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0024] like Figures 1 to 4 As shown, an in-situ repair device for stainless steel pipe joints in an aircraft hydraulic system includes:

[0025] End effector 1 is used to repair the conical surface of the non-removable pipe fitting 29;

[0026] Frame 2 provides support for the entire equipment and is responsible for adjusting the end effector 1 in four directions: up, down, left, and right.

[0027] The intelligent controller 7 is responsible for controlling the parameter setting and start / stop of the end effector 1 through the PLC control program.

[0028] The frame 2 includes a linear bearing seat 8, a support arm 3 mounted on the linear bearing seat 8, a swing arm 4 mounted on the support arm 3, two sets of linear slide rails 9 mounted on the frame 2 and cooperating with the two sets of linear bearing seats 8, and a clamp 10 mounted on the upper linear bearing seat 8.

[0029] By adjusting the position of the support arm 3 and the swing arm 4 on the frame 2 on the linear bearing seat and the linear slide rail 9, the cutting tool 28 in the end effector 1 is made to match the conical surface of the non-removable pipe joint 29, resulting in high precision.

[0030] Specifically, such as Figure 1 As shown, the adjusting frame 2 is equipped with a movable handle 5 for easy gripping. The lower end of the adjusting frame 2 is equipped with several sets of horizontal adjusting wheels 6 for easy movement.

[0031] like Figure 4As shown, the end effector 1 includes a cutting tool 28, a rotary assembly that drives the cutting tool 28 to perform rotary cutting on the conical surface of the non-removable pipe joint 29, a linear feed assembly that drives the cutting tool 28 to perform linear feed on the axis of the conical surface of the non-removable pipe joint 29, and an auxiliary assembly that assists the rotary assembly and the linear feed assembly in repair.

[0032] Power is turned on on the intelligent controller 7, and the motion parameters of the cutting stepper motor 11 and the feed stepper motor 12 are set so that the motor drives the cutting tool to rotate, thereby cutting and repairing the conical surface of the pipe joint. This reduces manual intervention, saves labor, and improves work efficiency. Designed using ergonomic principles, it can meet the requirements for in-situ repair of stainless steel pipe joints in aircraft hydraulic systems and product quality.

[0033] like Figure 3 As shown, the rotating assembly includes a cutting stepper motor 11, a reducer 13 connected to the cutting stepper motor 11, a first coupling 14 connected to the reducer 13, and a right-angle head 24 connected to the first coupling 14 for changing the direction of rotational motion.

[0034] Specifically, the right-angle head 24 of the present invention can change the transmission direction by 90°, thereby driving the rotation of the cutter 28.

[0035] like Figure 4 As shown, the linear feed assembly includes a feed stepper motor 12, a second coupling 26 connected to the feed stepper motor 12, a slider 16 connected to the second coupling 26 via a lead screw support 18 and a ball screw 20, and a linear guide rail 17 that moves back and forth with the slider 16.

[0036] The lead screw support 18 is mounted on the lead screw nut support 21.

[0037] The slider 16 is fixed on the support plate 22, thereby driving the rotating assembly to move back and forth, so that the tool 28 on the rotating assembly can be fed linearly on the conical axis of the non-removable pipe joint 29.

[0038] like Figure 4 As shown, the auxiliary components include a support plate 22 and a mounting plate 32, a fixed handle 15 fixed on the swing arm 4, a limiting ring 19 connected to the lead screw support 18, a fixing ring 31 connected to the support plate 22, a positioning sleeve 27 that cooperates with the support plate 22 for fixing, a guard plate 23 connected to the support plate 22 to prevent accidental blade tip splashing caused by blade breakage when the tool 28 rotates during operation, a positioning ring 30 fixed on the end face of the non-removable pipe joint 29 to fill the gap between the positioning sleeve 27 and the end face of the non-removable pipe joint 29, and a supplementary light 25 fixed on the mounting plate 32 to provide illumination during operation.

[0039] The fixed handle 15 provides a gripping point for personnel to facilitate the movement of the swing arm 4 and the end effector 1.

[0040] The function of the limiting ring 19 is to prevent the end effector 1 from impacting the aircraft body during movement.

[0041] The positioning sleeve 27 is used to prevent the cutter 28 from rotating randomly during rotation, and the positioning sleeve 27 vibrates or rotates with it.

[0042] The intelligent controller 7 is responsible for controlling the parameters of the cutting stepper motor 11 and the feed stepper motor 12 through the PLC control program.

[0043] When using the equipment, first adjust the position of the support arm 3 and the swing arm 4 on the frame 2 on the linear bearing seat and the linear slide rail 9 so that the cutting tool 28 in the end effector 1 matches the conical surface of the non-removable pipe joint 29; then turn on the power on the intelligent controller 7, set the motion parameters of the cutting stepper motor 11 and the feed stepper motor 12 so that the motor drives the cutting tool to rotate, thereby cutting and repairing the conical surface of the pipe joint.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A device for in-situ repair of stainless steel pipe joints in an aircraft hydraulic system, characterized in that: include: An end effector (1) is used to repair the conical surface of a non-removable pipe fitting (29); The frame (2) provides support for the entire equipment and is responsible for adjusting the end effector (1) in four directions: up, down, left, and right. The intelligent controller (7) is responsible for controlling the parameter setting and start / stop of the end effector (1) through the PLC control program; The end effector (1) includes a cutting tool (28), a rotary assembly that drives the cutting tool (28) to perform rotary cutting on the conical surface of the non-removable pipe joint (29), a linear feed assembly that drives the cutting tool (28) to perform linear feed on the axis of the conical surface of the non-removable pipe joint (29), and an auxiliary assembly that assists the rotary assembly and the linear feed assembly in repair. The rotary assembly includes a cutting stepper motor (11), and the linear feed assembly includes a feed stepper motor (12).

2. The in-situ repair equipment for stainless steel pipe joints in an aircraft hydraulic system according to claim 1, characterized in that: The frame (2) includes two sets of linear bearing seats (8), a support arm (3) set on the linear bearing seats (8), a swing arm (4) set on the support arm (3), two sets of linear slide rails (9) set on the frame (2) and cooperating with the two sets of linear bearing seats (8), and a clamp (10) set on the upper linear bearing seat (8).

3. The in-situ repair equipment for stainless steel pipe joints in an aircraft hydraulic system according to claim 1, characterized in that: The rotating assembly also includes a reducer (13) connected to the cutting stepper motor (11), a first coupling (14) connected to the reducer (13), and a right-angle head (24) connected to the first coupling (14) for changing the direction of rotational motion.

4. The in-situ repair equipment for stainless steel pipe joints in an aircraft hydraulic system according to claim 3, characterized in that: The linear feed assembly also includes a second coupling (26) connected to the feed stepper motor (12), a slider (16) connected to the second coupling (26) via a lead screw support (18) and a ball screw (20), and a linear guide rail (17) that cooperates with the slider (16) to achieve forward and backward movement.

5. The in-situ repair equipment for stainless steel pipe joints in an aircraft hydraulic system according to claim 4, characterized in that: The slider (16) drives the rotating assembly to move back and forth, so that the tool (28) on the rotating assembly can be fed linearly on the conical axis of the non-removable pipe joint (29).

6. The in-situ repair equipment for stainless steel pipe joints in an aircraft hydraulic system according to claim 1, characterized in that: The auxiliary components include a support plate (22) and a mounting plate (32), a fixed handle (15) fixed on the swing arm (4), a limiting ring (19) connected to the lead screw support (18), a fixing ring (31) connected to the support plate (22), a positioning sleeve (27) that cooperates with the support plate (22) to achieve fixation, a guard plate (23) connected to the support plate (22) to prevent accidental blade tip splashing caused by blade breakage when the tool (28) rotates during operation, a positioning ring (30) fixed on the end face of the non-removable pipe joint (29) to fill the gap between the positioning sleeve (27) and the end face of the non-removable pipe joint (29), and a supplementary light (25) fixed on the mounting plate (32) to provide illumination during operation.

7. The in-situ repair equipment for stainless steel pipe joints in an aircraft hydraulic system according to claim 4, characterized in that: The intelligent controller (7) is responsible for controlling the parameters of the cutting stepper motor (11) and the feed stepper motor (12) through the PLC control program.

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