Vacuum adsorption device for aircraft skin processing

Abstract

A vacuum adsorption device for aircraft skin processing belongs to the field of devices for vacuum adsorption and comprises a base assembly, a control unit and a sucker assembly, the control unit is fixed in the base assembly, and the sucker assembly is detachably and fixedly connected with the base assembly in a sealed mode. The problems that an existing vacuum suction cup is poor in adaptability, the suction cup needs to be replaced frequently when the skin curvature changes, and the efficiency is low in the background technology can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of vacuum adsorption device, especially a kind of vacuum adsorption device for aircraft skin processing. BACKGROUND

[0002] The processing technology in the aircraft skin manufacturing process directly affects whether subsequent multiple production steps can be carried out and the quality of the final product, and the tooling plays a crucial role in the processing process. In the past 20 years, the clamping device development of aircraft skin processing tooling technology is generally divided into three generations: the first generation is the clamping device of specific solid mold tooling fixture. In this traditional trimming process, the clamping of the workpiece to be processed is realized by stretching the mold tire and the template, and the clamping force of the solid mold on the workpiece to be processed is limited, which is prone to misalignment, affecting the precision of the skin and greatly reducing the accuracy of the skin boundary. The second generation is the clamping device of vacuum air bag and card plate support type tooling fixture. In the tooling fixture, a series of accessories are installed on the card plate and the tooling base, and clamping is achieved by relying on the vacuum air bag. This generation of tooling fixture still has many shortcomings, such as the card plate needs to be trimmed or remanufactured to meet the processing requirements of different skins, greatly reducing the flexibility of the fixture, and the third generation uses vacuum chuck to fix the skin.

[0003] The existing vacuum chuck has poor adaptability, and the suction disc needs to be frequently replaced when the curvature of the skin changes, which is inefficient, so there is an urgent need for a vacuum adsorption device for aircraft skin processing to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the above problems existing in prior art, and provides a vacuum adsorption device for aircraft skin processing.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A vacuum adsorption device for aircraft skin processing, comprising: a base assembly, a control unit and a suction cup assembly, the control unit is fixed inside the base assembly, and the suction cup assembly is detachably and sealingly fixedly connected with the base assembly.

[0007] The base assembly comprises: a shell, a rubber sealing ring, an annular groove, a small hole of a stepped hole, a large hole of the stepped hole, an annular baffle, an air outlet, a fixed base and a fixed pin, the shell is internally provided with a rubber sealing ring, the end surface of the rubber sealing ring is downwardly provided with an annular groove, the annular groove is tapered, the inner side surface of the rubber sealing ring is provided with a stepped hole, the annular baffle is fixed on the inner wall of the small hole of the stepped hole, the large hole of the stepped hole is fixedly connected with the air outlet at the lower end, the fixed base is symmetrically arranged on the outer side surface of the shell, each fixed base side surface is slidably penetrated by a fixed pin, and the positioning hole is arranged on the two fixed bases.

[0008] The control unit comprises a bracket one, a slide rod, a spring and a sealing plug, the large hole of the stepped hole is horizontally fixed with the bracket one, the bracket one is vertically fixed with the slide rod, the spring is sleeved on the slide rod, and the sealing plug is sealingly and slidably connected with the slide rod, and the diameter of the sealing plug is matched with the small hole of the stepped hole.

[0009] The suction cup assembly comprises a suction cup, a fixing rod, a limiting plate, a bracket two and a hollow pipe, the outer wall of the suction cup is symmetrically fixed with the fixing rod, the limiting plate is arranged on the two fixing rods, the fixing rod is used in cooperation with the fixed base, the two fixing rods are provided with fixing rod holes, the bracket two is fixed in the suction cup, the hollow pipe is fixed to the lower end of the bracket two, and the lower end of the suction cup is tapered.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model provides a vacuum adsorption device for aircraft skin processing can solve the problem of low efficiency of the existing vacuum chuck that poor adaptability needs to frequently change the suction cup when the skin curvature changes. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole structure schematic diagram of the utility model;

[0013] Figure 2 It is the shell plan view;

[0014] Figure 3 It is control unit structure schematic diagram;

[0015] Figure 4 It is suction cup assembly structure schematic diagram. DETAILED DESCRIPTION

[0016] The technical scheme in the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of the utility model protection.

[0017] A vacuum adsorption device for aircraft skin processing, comprising: base assembly 1, control unit 2 and suction cup assembly 3, the control unit 2 is fixed in the base assembly 1, and the suction cup assembly 3 is detachably and sealingly fixedly connected with the base assembly 1.

[0018] The base assembly 1 comprises an outer shell 1-1, a rubber sealing ring 1-2, an annular groove 1-3, a small hole 1-4 of a stepped hole, a large hole 1-5 of the stepped hole, an annular baffle 1-6, an air outlet 1-7, a fixed base 1-8 and a fixed pin 1-9, the rubber sealing ring 1-2 is arranged in the outer shell 1-1, the annular groove 1-3 is arranged on the end surface of the rubber sealing ring 1-2 downwards, the annular groove 1-3 is tapered, the inner side surface of the rubber sealing ring 1-2 is arranged as a stepped hole, the annular baffle 1-6 is fixed on the inner wall of the small hole 1-4 of the stepped hole, the large hole 1-5 of the stepped hole is fixedly connected with the air outlet 1-7 at the lower end, the fixed bases 1-8 are symmetrically arranged on the outer side surface of the outer shell 1-1, the fixed pins 1-9 are slidably arranged in the fixed bases 1-8, and the positioning holes are arranged on the fixed bases 1-8.

[0019] The control unit 2 comprises a support 2-1, a slide rod 2-2, a spring 2-3 and a sealing plug 2-4, the large hole 1-5 of the stepped hole is fixedly connected with the support 2-1, the slide rod 2-2 is vertically fixed on the support 2-1, the spring 2-3 is sleeved on the slide rod 2-2, and the sealing plug 2-4 is sealingly and slidably connected with the slide rod 2-2.

[0020] The suction disc assembly 3 comprises a suction disc 3-1, a fixed rod 3-2, a limiting plate 3-3, a support 3-4 and a hollow tube 3-5, the fixed rods 3-2 are symmetrically fixed on the outer wall of the suction disc 3-1, the limiting plates 3-3 are arranged on the fixed rods 3-2, the fixed rods 3-2 are used in cooperation with the fixed bases 1-8, the fixed rods 3-2 are provided with fixed rod holes, the support 3-4 is fixed in the suction disc 3-1, the hollow tube 3-5 is fixed at the lower end of the support 3-4, and the lower end of the suction disc 3-1 is tapered.

[0021] The working principle of the utility model is:

[0022] The utility model discloses can multiple joint use, fix multiple utility model on frock platform, fix the intercommunication of vacuum air pump and air exhaust port 1-7 then power on vacuum air pump, when using, insert suction cup 3-1 into shell 1-1, make the lower end of suction cup 3-1 insert into annular groove 1-3, annular groove 1-3 is set as conical, along with the insertion of suction cup 3-1 in annular groove 1-3, the two side walls of annular groove 1-3 can be closely attached on suction cup 3-1 and play the role of sealing and preventing air leakage, and fixed rod 3-2 is inserted in fixed base 1-8, and fixed pin 1-9 is inserted into positioning hole and fixed rod hole, and the locking of suction cup 3-1 is completed, and annular groove 1-3 and fixed base 1-8 also play the role of positioning to suction cup 3-1, when suction cup 3-1 is not inserted, sealing plug 2-4 is abutted on annular baffle 1-6 under the action of spring 2-3, and sealing plug 2-4 and the inner wall of small hole 1-4 of stepped hole are slidingly sealed, which can prevent gas leakage, when suction cup 3-1 is inserted, hollow tube 3-5 is inserted into slide rod 2-2, along with the downward movement of hollow tube 3-5 along slide rod 2-2, then sealing plug 2-4 moves downward along slide rod 2-2, and spring 2-3 is compressed, when sealing plug 2-4 moves to large hole 1-5 in stepped hole, vacuum air pump can suck air through suction cup 3-1, and then the subsequent skinning operation can be completed, when suction cup 3-1 needs to be replaced, fixed pin 1-9 is extracted, then suction cup 3-1 is pulled out, then sealing plug 2-4 is driven upward by spring 2-3 and reset, so that gas can not pass through, then the above steps can be repeated to install new suction cup, and the time for replacing suction cup can be shortened and the working efficiency is improved through the above mode.

[0023] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A vacuum suction device for processing an aircraft skin, characterized by: Include: Base assembly (1), control unit (2) and suction cup assembly (3), the control unit (2) is fixed inside the base assembly (1), the suction cup assembly (3) is detachably sealed and fixedly connected with the base assembly (1).

2. The vacuum chucking device for processing of aircraft skin as claimed in claim 1, wherein: The base assembly (1) comprises: a shell (1-1), a rubber sealing ring (1-2), an annular groove (1-3), a small hole (1-4) of a stepped hole, a large hole (1-5) of a stepped hole, an annular baffle (1-6), an air outlet (1-7), a fixed base (1-8) and a fixed pin (1-9), the shell (1-1) is provided with a rubber sealing ring (1-2) inside, the rubber sealing ring (1-2) is provided with an annular groove (1-3) downward on the end face, the annular groove (1-3) is tapered, the inner side of the rubber sealing ring (1-2) is provided with a stepped hole, the annular baffle (1-6) is fixed on the inner wall of the small hole (1-4) of the stepped hole, the large hole (1-5) of the stepped hole is fixedly connected with the air outlet (1-7) at the lower end, the fixed base (1-8) is symmetrically arranged on the outer side of the shell (1-1), each fixed base (1-8) is slidably penetrated by a fixed pin (1-9), and the fixed base (1-8) is provided with a positioning hole.

3. The vacuum chucking device for processing of aircraft skin as claimed in claim 2, wherein: The control unit (2) comprises: a bracket (2-1), a slide rod (2-2), a spring (2-3) and a sealing plug (2-4), the large hole (1-5) of the stepped hole is fixedly connected with the bracket (2-1), the bracket (2-1) is vertically fixed with the slide rod (2-2), the spring (2-3) is sleeved on the slide rod (2-2), and the sealing plug (2-4) is sealingly and slidably connected with the slide rod (2-2), and the diameter of the sealing plug (2-4) matches the small hole (1-4) of the stepped hole.

4. The vacuum chucking device for processing of an aircraft skin according to claim 3, characterized in that: The suction cup assembly (3) comprises: a suction cup (3-1), a fixed rod (3-2), a limiting plate (3-3), a bracket (3-4) and a hollow tube (3-5), the fixed rod (3-2) is symmetrically fixed on the outer wall of the suction cup (3-1), the limiting plate (3-3) is arranged on the two fixed rods (3-2), the fixed rod (3-2) is used in cooperation with the fixed base (1-8), the two fixed rods (3-2) are provided with fixed rod holes, the bracket (3-4) is fixed inside the suction cup (3-1), the hollow tube (3-5) is fixed at the lower end of the bracket (3-4), and the lower end of the suction cup (3-1) is tapered.

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