Electric assembly tool for aero-engine pipeline clamp

Abstract

An aero-engine pipeline clamp electric assembling tool comprises a shell, an inner hexagonal socket wrench, a driven bevel gear, a driving bevel gear, a motor, a power battery, a motor starting button, an ultrasonic axial force measuring instrument, a display screen and a locking plate wrenching mechanism. Only one tool is needed when the pipeline clamp is assembled, the step that multiple tools need to be switched in the traditional manual assembly process is omitted, the requirement for the proficiency of operators can be greatly lowered, the assembly time is effectively saved, meanwhile, the assembly efficiency is improved, and through measurement and calculation, for example, 500 pipeline clamps need to be assembled on an aero-engine, the assembly efficiency is greatly improved. Only about 30 seconds are needed to complete the assembly of one pipeline clamp, only about 250 minutes are needed to complete the assembly of 500 pipeline clamps on one aero-engine, and the assembly efficiency is improved by at least 6 times. And meanwhile, when the hoop bolt is screwed, the axial force can be displayed in real time to assist in controlling the screwing force of the bolt, so that the consistency of the assembled pipeline hoop is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline clamp assembly tools, and in particular relates to an electric assembly tool for an aircraft engine pipeline clamp. Background Art

[0002] At present, the assembly of aircraft engine pipe clamps is still mainly done manually, requiring the use of conventional tools such as hexagonal wrenches and locking pliers. During assembly, it is necessary to switch between multiple tools, which easily leads to unstable assembly quality and poor consistency after assembly. For example, if an aircraft engine needs to assemble 500 pipe clamps, it takes about 3 minutes for a skilled operator to complete the assembly of one pipe clamp. Therefore, it takes at least about 1,500 minutes to assemble all 500 pipe clamps on an aircraft engine. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides an electric assembly tool for the pipeline clamp of an aircraft engine. When assembling the pipeline clamp, only the tool of the present invention is needed, which eliminates the steps of switching multiple tools required in traditional manual assembly, can greatly reduce the proficiency requirements for operators, effectively save assembly time, and improve assembly efficiency. According to calculations, taking an aircraft engine that needs to assemble 500 pipeline clamps as an example, it only takes about 30 seconds to complete the assembly of one pipeline clamp, and it only takes about 250 minutes to assemble all 500 pipeline clamps on an aircraft engine, and the assembly efficiency is improved by at least 6 times. At the same time, when the clamp bolt is screwed, the axial force can be displayed in real time to assist in the control of the tightening force of the bolt, thereby greatly improving the consistency of the pipeline clamp after assembly.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electric assembly tool for aircraft engine pipe clamps, comprising a shell, an inner hexagon socket wrench, a driven bevel gear, a driving bevel gear, a motor and a power battery; the inner hexagon socket wrench, the driven bevel gear, the driving bevel gear, the motor and the power battery are all located in the shell; the inner hexagon socket wrench is rotatably connected to the shell through a bearing; the driven bevel gear is coaxially fixedly sleeved on the rear end of the inner hexagon socket wrench; the driving bevel gear is coaxially fixedly installed on the power output shaft of the motor, and the driving bevel gear is meshed with the driven bevel gear; the motor is electrically connected to the power battery.

[0005] The shell is a single-body structure, including a clamp positioning frame, a socket wrench installation compartment and a gripping handle; the clamp positioning frame is vertically distributed with the gripping handle; a motor chamber and a battery chamber are respectively arranged inside the gripping handle, and an open partition is provided between the motor chamber and the battery chamber.

[0006] The hexagon socket wrench is located inside the socket wrench installation compartment, and the bearing is arranged between the hexagon socket wrench and the socket wrench installation compartment.

[0007] The motor is fixedly arranged in the motor chamber, the power battery is fixedly arranged in the battery chamber, the power battery is electrically connected to the motor through a perforated partition, and a detachable cover for replacing the power battery is arranged at the bottom of the battery chamber.

[0008] A motor starting button is arranged on the outer surface of the shell in front of the gripping handle.

[0009] An ultrasonic axial force measuring instrument is fixedly installed in the shell behind the hexagon socket wrench, and the ultrasonic axial force measuring instrument is powered by a power battery; a spring telescopic support rod is coaxially arranged at the inner center of the hexagon socket wrench, the rear end of the spring telescopic support rod is connected to the ultrasonic axial force measuring instrument, and an ultrasonic probe is installed at the front end of the spring telescopic support rod.

[0010] A display screen is fixedly mounted on the outer surface of the shell behind the socket wrench installation compartment, and the display screen is used to display the bolt axial force value and the power battery power value in real time.

[0011] A locking plate twisting mechanism is arranged on the upper part of the clamp positioning frame; the locking plate twisting mechanism comprises a locking plate twisting extrusion push rod, a locking plate twisting force lever, a hinge ear support and a tension reset spring; a waist drum-shaped rod through hole is opened on the upper end frame body of the clamp positioning frame, the locking plate twisting extrusion head of the locking plate twisting extrusion push rod is located on the inner side of the clamp positioning frame, and the rod body of the locking plate twisting extrusion push rod passes through the waist drum-shaped rod through hole to the outer side of the clamp positioning frame; the hinge ear support is fixedly arranged on the outer surface of the clamp positioning frame, the fulcrum of the locking plate twisting force lever is hinged to the hinge ear support, one end of the locking plate twisting force lever is hinged to the outer end of the locking plate twisting extrusion push rod, and the other end of the locking plate twisting force lever is a free end; the tension reset spring is connected between the free end of the locking plate twisting force lever and the clamp positioning frame.

[0012] Beneficial effects of the present invention:

[0013] The electric assembly tool for the pipeline clamp of the aircraft engine of the present invention only needs the tool of the present invention when assembling the pipeline clamp, eliminating the step of switching multiple tools required in traditional manual assembly, which can greatly reduce the proficiency requirements for operators, effectively save assembly time, and improve assembly efficiency. According to calculations, taking an aircraft engine that needs to assemble 500 pipeline clamps as an example, it only takes about 30 seconds to complete the assembly of one pipeline clamp, and it only takes about 250 minutes to assemble all 500 pipeline clamps on an aircraft engine, and the assembly efficiency is improved by at least 6 times. At the same time, when the clamp bolt is screwed, the axial force can be displayed in real time to assist in the control of the tightening force of the bolt, thereby greatly improving the consistency of the pipeline clamp after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an electric assembly tool for an aircraft engine pipeline clamp (when assembling the pipeline clamp) of the present invention;

[0015] Figure 2 It is a structural schematic diagram of an electric assembly tool for an aircraft engine pipeline clamp (initial state) of the present invention;

[0016] Figure 3 It is a schematic structural diagram of a combination of a housing and a detachable cover of the present invention;

[0017] Figure 4 This is the assembly effect diagram of the pipe and clamp.

[0018] In the figure, 1 is a housing, 2 is a hexagon socket wrench, 3 is a driven bevel gear, 4 is a driving bevel gear, 5 is a motor, 6 is a power battery, 7 is a bearing, 8 is a clamp positioning frame, 9 is a socket wrench installation compartment, 10 is a gripping handle, 11 is a motor chamber, 12 is a battery chamber, 13 is a perforated partition, 14 is a removable cover, 15 is an ultrasonic axial force measuring instrument, 16 is a spring telescopic support rod, 17 is an ultrasonic probe, 18 is a motor start button, 19 is a display screen, 20 is a locking plate wrench extrusion push rod, 21 is a locking plate wrench force lever, 22 is a hinge ear support, 23 is a tension reset spring, 24 is a waist drum-shaped rod hole, 25 is a clamp nut side petal body, 26 is a pipeline, 27 is a clamp bolt side petal body, 28 is a bolt, 29 is a nut, 30 is a locking plate, and 31 is a locking plate wrench extrusion head. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 4As shown, an electric assembly tool for aircraft engine pipeline clamps includes a housing 1, an inner hexagon socket wrench 2, a driven bevel gear 3, a driving bevel gear 4, a motor 5 and a power battery 6; the inner hexagon socket wrench 2, the driven bevel gear 3, the driving bevel gear 4, the motor 5 and the power battery 6 are all located in the housing 1; the inner hexagon socket wrench 2 is rotatably connected to the housing 1 through a bearing 7; the driven bevel gear 3 is coaxially fixedly sleeved on the rear end of the inner hexagon socket wrench 2; the driving bevel gear 4 is coaxially fixedly installed on the power output shaft of the motor 5, and the driving bevel gear 4 is meshed with the driven bevel gear 3; the motor 5 is electrically connected to the power battery 6.

[0021] The shell 1 is a single-body structure, including a clamp positioning frame 8, a socket wrench mounting compartment 9 and a gripping handle 10; the clamp positioning frame 8 is vertically distributed with the gripping handle 10; a motor chamber 11 and a battery chamber 12 are respectively arranged inside the gripping handle 10, and a perforated partition 13 is provided between the motor chamber 11 and the battery chamber 12.

[0022] The hexagon socket wrench 2 is located inside the socket wrench installation compartment 9, and the bearing 7 is arranged between the hexagon socket wrench 2 and the socket wrench installation compartment 9.

[0023] The motor 5 is fixedly disposed in the motor chamber 11 , and the power battery 6 is fixedly disposed in the battery chamber 12 . The power battery 6 is electrically connected to the motor 5 via a perforated partition 13 . A detachable cover 14 for replacing the power battery 6 is disposed at the bottom of the battery chamber 12 .

[0024] A motor start button 18 is provided on the outer surface of the housing 1 in front of the grip handle 10 .

[0025] An ultrasonic axial force measuring instrument 15 is fixedly installed in the housing 1 behind the hexagon socket wrench 2, and the ultrasonic axial force measuring instrument 15 is powered by a power battery 6; a spring telescopic support rod 16 is coaxially arranged at the inner center of the hexagon socket wrench 2, the rear end of the spring telescopic support rod 16 is connected to the ultrasonic axial force measuring instrument 15, and an ultrasonic probe 17 is installed at the front end of the spring telescopic support rod 16.

[0026] A display screen 19 is fixedly mounted on the outer surface of the housing 1 behind the socket wrench mounting compartment 9 , and the display screen 19 is used to display the bolt axial force value and the power value of the power battery 6 in real time.

[0027] A locking plate twisting mechanism is arranged on the upper part of the clamp positioning frame 8; the locking plate twisting mechanism comprises a locking plate twisting extrusion push rod 20, a locking plate twisting force lever 21, a hinge ear support 22 and a tension reset spring 23; a waist drum-shaped rod penetration hole 24 is opened on the upper end frame body of the clamp positioning frame 8, a locking plate twisting extrusion head 31 of the locking plate twisting extrusion push rod 20 is located on the inner side of the clamp positioning frame 8, and the rod body of the locking plate twisting extrusion push rod 20 is inserted from the waist drum-shaped rod penetration hole 24 passes through to the outside of the clamp positioning frame 8; the hinge ear support 22 is fixedly arranged on the outer surface of the clamp positioning frame 8, the fulcrum of the locking plate twisting force lever 21 is hinged to the hinge ear support 22, one end of the locking plate twisting force lever 21 is hinged to the outer end of the locking plate twisting extrusion push rod 20, and the other end of the locking plate twisting force lever 21 is a free end; the tension reset spring 23 is connected between the free end of the locking plate twisting force lever 21 and the clamp positioning frame 8.

[0028] The following describes a one-time use process of the present invention in conjunction with the accompanying drawings:

[0029] First, buckle the clamp nut side flap body 25 onto the pipe 26, and then place the clamp bolt side flap body 27 into the clamp positioning frame 8, and at the same time, insert the nut of the bolt 28 on the clamp bolt side flap body 27 into the hexagonal socket wrench 2, and the nut of the bolt 28 is coupled and pressed against the ultrasonic probe 17.

[0030] Then, hold the hoop nut side petal body 25 and the nut 29 thereon with the left hand, hold the holding handle 10 with the right hand and move the tool until the hoop bolt side petal body 27 in the hoop positioning frame 8 is initially engaged with the hoop nut side petal body 25, and the screw end of the bolt 28 is initially against the screw hole opening of the nut 29, while the pipeline 26 is clamped between the hoop nut side petal body 25 and the hoop bolt side petal body 27.

[0031] Next, a certain amount of pressure is applied along the axial direction of the bolt 28 with the right hand, and the motor start button 18 is pressed with the right index finger. At this time, the motor 5 is powered on to start, and the active bevel gear 4 is driven by the motor 5 to rotate, thereby driving the driven bevel gear 3 meshing therewith to rotate, and finally the hexagon socket wrench 2 is driven by the driven bevel gear 3 to rotate, and the bolt 28 is screwed by the rotating hexagon socket wrench 2 until it is tightened. During this process, the ultrasonic probe 17 and the ultrasonic axial force measuring instrument 15 cooperate to display the measured bolt axial force on the display screen 19 in real time, so as to help the operator control the tightening degree of the bolt 28.

[0032] When the bolt 28 is tightened, the free end of the locking plate twisting force lever 21 is pulled upward by hand, thereby driving the locking plate twisting extrusion head 31 of the locking plate twisting extrusion push rod 20 to wedge into the gap between the locking plate 30 and the side petal body 27 of the clamp bolt, thereby realizing the twisting deformation of the locking plate 30. At this time, the clamp assembly work is completed.

[0033] Subsequently, the locking plate twisting force lever 21 is loosened, and under the action of the tension reset spring 23, the locking plate twisting force lever 21 and the locking plate twisting extrusion push rod 20 are reset synchronously, and finally the tool is removed from the assembled clamp, and the assembly work of the next clamp can be started.

[0034] The solutions in the embodiments are not intended to limit the protection scope of the present invention. All equivalent implementations or changes that do not deviate from the present invention are included in the protection scope of the present invention.

Claims

1. An electric assembly tool for aircraft engine pipe clamps, characterized in that: It includes a housing, an inner hexagon socket wrench, a driven bevel gear, a driving bevel gear, an electric motor and a power battery; the inner hexagon socket wrench, the driven bevel gear, the driving bevel gear, the electric motor and the power battery are all located in the housing; the inner hexagon socket wrench is rotatably connected to the housing through a bearing; the driven bevel gear is coaxially fixedly sleeved on the rear end of the inner hexagon socket wrench; the driving bevel gear is coaxially fixedly installed on the power output shaft of the electric motor, and the driving bevel gear is meshed with the driven bevel gear; the electric motor is electrically connected to the power battery.

2. The electric assembly tool for aircraft engine pipe clamps according to claim 1, characterized in that: The shell is a single-body structure, including a clamp positioning frame, a socket wrench installation compartment and a gripping handle; the clamp positioning frame is vertically distributed with the gripping handle; a motor chamber and a battery chamber are respectively arranged inside the gripping handle, and an open partition is provided between the motor chamber and the battery chamber.

3. The electric assembly tool for aircraft engine pipe clamp according to claim 2, characterized in that: The hexagon socket wrench is located inside the socket wrench installation compartment, and the bearing is arranged between the hexagon socket wrench and the socket wrench installation compartment.

4. The electric assembly tool for aircraft engine pipe clamps according to claim 2, characterized in that: The motor is fixedly arranged in the motor chamber, the power battery is fixedly arranged in the battery chamber, the power battery is electrically connected to the motor through a perforated partition, and a detachable cover for replacing the power battery is arranged at the bottom of the battery chamber.

5. The electric assembly tool for aircraft engine pipe clamp according to claim 2, characterized in that: A motor starting button is arranged on the outer surface of the shell in front of the gripping handle.

6. The electric assembly tool for aircraft engine pipe clamps according to claim 2, characterized in that: An ultrasonic axial force measuring instrument is fixedly installed in the shell behind the hexagon socket wrench, and the ultrasonic axial force measuring instrument is powered by a power battery; a spring telescopic support rod is coaxially arranged at the inner center of the hexagon socket wrench, the rear end of the spring telescopic support rod is connected to the ultrasonic axial force measuring instrument, and an ultrasonic probe is installed at the front end of the spring telescopic support rod.

7. The electric assembly tool for aircraft engine pipe clamps according to claim 2, characterized in that: A display screen is fixedly mounted on the outer surface of the shell behind the socket wrench installation compartment, and the display screen is used to display the bolt axial force value and the power battery power value in real time.

8. The electric assembly tool for aircraft engine pipe clamps according to claim 2, characterized in that: A locking plate twisting mechanism is arranged on the upper part of the clamp positioning frame; the locking plate twisting mechanism comprises a locking plate twisting extrusion push rod, a locking plate twisting force lever, a hinge ear support and a tension reset spring; a waist drum-shaped rod through hole is opened on the upper end frame body of the clamp positioning frame, the locking plate twisting extrusion head of the locking plate twisting extrusion push rod is located on the inner side of the clamp positioning frame, and the rod body of the locking plate twisting extrusion push rod passes through the waist drum-shaped rod through hole to the outer side of the clamp positioning frame; the hinge ear support is fixedly arranged on the outer surface of the clamp positioning frame, the fulcrum of the locking plate twisting force lever is hinged to the hinge ear support, one end of the locking plate twisting force lever is hinged to the outer end of the locking plate twisting extrusion push rod, and the other end of the locking plate twisting force lever is a free end; the tension reset spring is connected between the free end of the locking plate twisting force lever and the clamp positioning frame.

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