Airtight detection equipment for aircraft hydraulic pipe

Abstract

The utility model relates to an aircraft hydraulic pipe airtight detection equipment, including the frame, water tank, overturn cylinder, clamping subassembly and groove cover, the frame is L-shaped, water tank is installed at the bottom of frame, groove cover is movably installed at the notch of water tank through hinge, the fixed end of overturn cylinder is movably connected with the upper end of frame, and the clamping subassembly is connected with the fixed end of overturn cylinder. The output end of the overturning air cylinder is movably connected with the tank cover and drives the tank cover to overturn and cover the water tank, the two clamping assemblies are installed on the tank cover side by side, and the output ends of the clamping assemblies penetrate through the tank cover and extend into the water tank. The whole set of equipment is simple in structure, low in manufacturing cost and extremely easy and convenient to operate, has no operation obstacle to operators, and is extremely friendly to use by front-line workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to aircraft parts detection equipment technical field, in particular to a kind of aircraft hydraulic pipe air-tightness detection equipment. BACKGROUND

[0002] Aircraft metal pipe is mostly used in fuel pipe, hydraulic pipe, oxygen delivery pipe and other pipeline systems that need strict sealing, and pipeline leakage can cause fire, system failure or oxygen supply interruption and other risks, so it is necessary to strictly detect the air-tightness of metal pipe before leaving factory to ensure its reliability and safety under complex working conditions such as high pressure, vibration and extreme temperature, and metal pipe with unqualified air-tightness is prohibited from installation.

[0003] The existing detection method is to inject high-pressure gas (such as air or nitrogen) into the metal pipe, pressurize to 1.5 times of the design pressure and maintain pressure, and then monitor the pressure change to judge leakage by using an air-tightness detector. Because an air-tightness detector is integrated, the cost of the entire detection equipment is high, and the air-tightness detector is complex to operate, requiring high skills of the on-site operator, which increases the cost of manual training. Therefore, it is necessary to further improve and design a device that can directly detect the air-tightness of the pipeline. SUMMARY

[0004] Therefore, it is necessary to provide an aircraft hydraulic pipe air-tightness detection device to solve the above problems.

[0005] An aircraft hydraulic pipe air-tightness detection device includes a rack, a water tank, a turnover air cylinder, a clamping assembly and a tank cover. The rack is L-shaped. The water tank is installed at the bottom of the rack. The tank cover is movably installed at the tank opening of the water tank by a hinge. The fixed end of the turnover air cylinder is movably connected to the upper end of the rack. The output end of the turnover air cylinder is movably connected to the tank cover to drive the tank cover to turn and cover the water tank. Two sets of clamping assemblies are installed side by side on the tank cover. The output end of the clamping assembly extends into the water tank through the tank cover.

[0006] Preferably, the clamping assembly includes a drive cylinder, a mounting seat, a clamping jaw and a transmission shaft. The drive cylinder and the mounting seat are horizontally installed side by side on the outer end face of the tank cover. The output end of the drive cylinder is connected to a top block to drive the top block to make reciprocating horizontal movement in the first cavity cylinder in the mounting seat. The mounting seat penetrates through the tank cover. Mirror-symmetrical channels are provided on both sides of the mounting seat. The middle intersection of the two channels is in communication with the first cavity cylinder. A roller is provided at the middle intersection of the two channels. The roller movably abuts against the lower end face of the top block. The thickness of the top block gradually decreases from one end of the drive cylinder outward. Two transmission shafts are movably inserted into the channels. Springs are sleeved on the transmission shafts. The lower end of the transmission shaft abuts against the roller, and the upper end of the transmission shaft is hingedly connected to the clamping jaw. The two clamping jaws are mirror-symmetrically hingedly connected to the lower end face of the mounting seat.

[0007] Preferably, the top block is provided with a stop hook away from the end of the driving cylinder.

[0008] Preferably, the water tank is made of glass fiber reinforced plastic, and the upper end of the frame is provided with a camera facing the water tank.

[0009] The utility model discloses the beneficial effect lies in: complete equipment simple structure, low manufacturing cost, and operation is extremely simple and convenient, and there is no operation obstacle to operating personnel, and the first -line worker is extremely friendly to use. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic view of an aircraft hydraulic pipe air-tightness detection equipment for one embodiment;

[0011] Figure 2 It is a schematic view of the clamping assembly structure. DETAILED DESCRIPTION

[0012] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from the description, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0013] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0015] As Figure 1As shown, an aircraft hydraulic pipe air tightness detection equipment includes a rack 1, a water tank 2, a turnover cylinder 3, a clamping assembly 4 and a tank cover 5, the rack 1 is L-shaped, the water tank 2 is installed at the bottom of the rack 1, the tank cover 5 is movably installed at the slot of the water tank 2 through a hinge, the fixed end of the turnover cylinder 3 is movably connected with the upper end of the rack 1, the output end of the turnover cylinder 3 is movably connected with the tank cover 5, driving the tank cover 5 to overturn and cover on the water tank 2, two groups of the clamping assembly 4 are installed side by side on the tank cover 5, and the output end of the clamping assembly 4 extends to the water tank 2 through the tank cover 5. Specifically, in the embodiment, during detection, the user clamps the pipe workpiece through the two groups of clamping assemblies 4, and then the turnover cylinder 3 drives the clamping assembly 4 to overturn through the tank cover 5, so as to immerse the workpiece in the liquid in the water tank 2. Understandably, before the workpiece is immersed in the water in the water tank 2, one end of the workpiece is sealed through a plug, and the other end is connected with a gas pressurizing system through an adapter, so as to inject high-pressure gas into the workpiece. When the workpiece is clamped by the clamping assembly 4 and immersed in the water, if there is a gap in the pipe wall of the workpiece, the high-pressure gas will overflow from the pipe wall of the workpiece, and bubbles will be generated in the water tank 2, indicating that the workpiece does not meet the factory requirements and needs to be discarded. If no bubbles are generated in the water tank 2 after the high-pressure gas is injected into the workpiece for a certain period of time, it indicates that the air tightness of the workpiece meets the factory requirements. The whole set of equipment has simple structure, low manufacturing cost and extremely simple and convenient operation, and there is no operation obstacle for the operator, and the first-line workers are extremely friendly to use.

[0016] As Figures 1-2As shown, the clamping assembly 4 comprises a driving cylinder 41, a mounting base 42, a clamping jaw 43 and a transmission shaft 44. The driving cylinder 41 and the mounting base 42 are horizontally installed side by side on the outer end face of the tank cover 5. The output end of the driving cylinder 41 is connected with a top block 411, which drives the top block 411 to make reciprocating horizontal movement in a first cavity cylinder 421 in the mounting base 42. The mounting base 42 penetrates the tank cover 5. Mirror-symmetrical channels 422 are arranged on the two sides of the mounting base 42. The middle intersection of the two channels 422 is communicated with the first cavity cylinder 421. A roller 423 is arranged at the middle intersection of the two channels 422. The roller 423 movably abuts against the lower end face of the top block 411. The thickness of the top block 411 gradually decreases from the end of the driving cylinder 41 outward. The transmission shaft 44 movably penetrates the channels 422. The transmission shaft 44 is sleeved with a spring 441. The lower end of the transmission shaft 44 abuts against the roller 423. The clamping jaw 43 is hingedly connected to the upper end of the transmission shaft 44. The two clamping jaws 43 are mirror-symmetrical hingedly connected to the lower end face of the mounting base 42. Specifically, in the embodiment, when the workpiece needs to be clamped, the output end of the driving cylinder 41 is stretched, which drives the top block 411 to displace forward. In the embodiment, the slope of the lower end of the top block 411 is from the end of the driving cylinder 41 to the direction away from the driving cylinder 41. The thickness of the top block 411 gradually decreases from the end connected with the driving cylinder 41 to the end away from the driving cylinder 41. Therefore, when the output end of the driving cylinder 41 is stretched, the top block 411 is displaced in the first cavity cylinder 421, which can abut against the roller 423. The height of the roller 423 in the vertical direction gradually decreases, which can drive the transmission shaft 44 to be pushed out of the inclined channels 422. At this time, the spring 441 sleeved on the transmission shaft 44 is compressed. When the transmission shaft 44 is pushed out, the two clamping jaws 43 can be driven to turn towards each other, which can clamp the workpiece. When the detection is completed and the workpiece needs to be released, the driving cylinder 41 is reset and retracted, which drives the top block 411 to reset. At this time, the top block 411 no longer abuts against the roller 423. The transmission shaft 44 can be reset and retracted into the channels 422 under the action of the spring force. When the transmission shaft 44 is retracted, the two clamping jaws 43 turn away from each other, which can release the workpiece, which is convenient for the operator to take and replace the workpiece.

[0017] As shown in the figure, Figure 2 The end of the top block 411 away from the driving cylinder 41 is provided with a stop hook 4111, which can prevent the roller 423 from entering the first cavity cylinder 421 from the intersection of the two channels 422. The roller 423 can only vertically displace at the intersection of the two channels 422.

[0018] As shown in the figure, Figure 1As shown, the water tank 2 is made of glass steel, and the upper end of the rack 1 is provided with a camera 6 facing the water tank 2. Specifically, whether bubbles are generated in the water tank 2 is captured in real time by the high-definition camera 6, so that workers do not need to observe for a long time with naked eyes, and eye fatigue of workers is avoided, and detection omission is caused.

[0019] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the application patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the application patent should be subject to the appended claims.

Claims

1. An aircraft hydraulic tube air tightness inspection apparatus, characterized by: The utility model provides a kind of automatic flip type glass bottle unscrambler, including rack, sink, turnover cylinder, clamping assembly and tank cover, the rack is L-shaped, the sink is installed at the bottom of rack, the tank cover is movably installed at the slot of sink by hinge, the fixed end of turnover cylinder is movably connected with the upper end of rack, the output end of turnover cylinder is movably connected with tank cover, drives tank cover to overturn and cover on sink, two groups of clamping assembly are installed side by side on tank cover, and the output end of clamping assembly extends to sink inside through tank cover.

2. An aircraft hydraulic tube air tightness detection device according to claim 1, characterized in that: The clamping assembly includes drive cylinder, mounting seat, clamping jaw and transmission shaft, the drive cylinder is horizontally installed side by side with mounting seat on the outer end surface of tank cover, the output end of drive cylinder is connected with top block, drives top block to do reciprocating horizontal motion in the first cavity cylinder in mounting seat, the mounting seat penetrates tank cover, the both sides of mounting seat are provided with mirror-symmetrical channels, the middle intersection of two channels is communicated with first cavity cylinder, the middle intersection of two channels is provided with roller, the lower end surface of top block is movably abutted with roller, the thickness of top block gradually decreases from the one end of drive cylinder, two transmission shafts are movably inserted in channel, spring is sleeved on transmission shaft, the lower end of transmission shaft is abutted with roller, and the upper end of transmission shaft is hinged with clamping jaw, two clamping jaws are mirror-symmetrically hinged on the lower end surface of mounting seat.

3. An aircraft hydraulic tube air tightness detection device according to claim 2, characterized in that: The one end of top block away from drive cylinder is provided with stop hook.

4. An aircraft hydraulic tube air tightness detection device as claimed in claim 1, characterized in that: The sink is made of glass steel, and a camera is installed on the upper end of the rack and faces the sink.

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