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An adaptive flexible positioning device and positioning method

A flexible positioning and self-adaptive technology, applied in workpiece clamping devices, manufacturing tools, etc., can solve the problems of many steps, increase labor intensity of workers, and serious problem of tooling storage space, achieve simple operation and ensure assembly coordination Effect

Active Publication Date: 2018-05-08
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The assembly process equipment mainly requires the device to have six characteristics: 1) usability; 2) coordination; 3) stability; 4) economy; 5) safety and 6) advancement. The location of special aircraft assembly tooling cannot be moved. When positioning frame parts, high requirements are placed on machining accuracy and installation accuracy, which virtually increases manufacturing costs. Workers use many steps and are inconvenient to use. Endurance puts forward higher requirements and increases the labor intensity of workers
Sometimes, when the model is changed or parts with similar structural dimensions are assembled, it is necessary to redesign and manufacture the special rigid positioning device. The original positioning device needs to be repaired, changed or even scrapped. This not only prolongs the assembly and manufacturing cycle of the aircraft, but also increases the manufacturing cost of the aircraft. The tooling storage of various specifications occupies a large area, and the problem of tooling storage occupying an area is serious

Method used

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  • An adaptive flexible positioning device and positioning method
  • An adaptive flexible positioning device and positioning method
  • An adaptive flexible positioning device and positioning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1 An adaptive flexible positioning device

[0035] Such as Figure 1-4 As shown, an adaptive flexible positioning device is composed of a base 1, a connecting rod 2, a threaded shaft 3, a limiting plate 4, a positioning plate 5, a compressor arm 6, a nylon positioning piece 7, a positioning pin 8, and a latch 9. The shaft position screw 10, the handle screw 11 and two sets of connecting rod wedge positioning and clamping components 21 are formed.

[0036] The base 1 is used to support the main structure of the whole device.

[0037] The connecting rod 2 is used to connect two sets of connecting rod wedge positioning and clamping components, to control the horizontal advancement of the connecting rod wedge positioning and clamping components, and to clamp and position frame parts.

[0038] There are two sets of connecting rod wedge positioning and clamping assemblies 21, and the connecting rod wedge positioning and clamping assembly is composed of a sliding ...

Embodiment 2

[0045] Embodiment 2 An adaptive flexible positioning method

[0046] Proceed as follows:

[0047] 1) In the length direction of the frame parts, install and arrange two self-adaptive flexible positioning devices described in Embodiment 1 respectively at both ends;

[0048] 2) Use positioning pins to position through the assembly holes on the frame parts, and press the web surface of the frame parts onto the nylon positioning piece 7;

[0049] 3) Drive the arm 6 of the compactor to rotate through the pin, and position the frame parts on the nylon positioning piece 7;

[0050]4) The handle screw drives the threaded push rod 17 of the two connecting rod wedge positioning and clamping components to move through the connecting rod, thereby driving the wedge to move, and the sliding pressure block 12 to move, and to perform self-adaptive positioning on the upper and lower surfaces of the frame parts Clamp. Adjust the connecting rod wedge to position and clamp the assembly, no mat...

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PUM

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Abstract

The invention relates to a self-adapting flexible positioning device and method. According to the technical scheme, the self-adapting flexible positioning device is provided with a connecting rod, wherein two connecting rod wedge positioning and clamping assemblies are connected with each other by the connecting rod and horizontal advancing of the connecting rod wedge positioning and clamping assemblies is controlled by the connecting rod; each connecting rod wedge positioning and clamping assembly consists of a sliding pressing block, a wedge, a static pressing block, an extension spring, cylindrical pins, a threaded push rod, a limiting pin and a hexagon nut; each static pressing block is fixed with a base; each wedge is mounted between the corresponding static pressing block and the corresponding sliding pressing block; two ends of each extension spring are respectively connected with the corresponding static pressing block and the corresponding sliding pressing block through the corresponding cylindrical pins; one end of each threaded push rod is connected with the corresponding wedge; the other end of each threaded push rod is connected with the connecting rod through the corresponding limiting pin and the corresponding hexagon nut; a positioning pin is fixed with the base and is mounted between the two connecting rod wedge positioning and clamping assemblies; and after a handle screw is in threaded connection with the connecting rod, one end of the handle screw is fixed with the base. The self-adapting flexible positioning device has quite high representativeness, can adjust a frame part of an aircraft along a molded surface in a self-adapting manner, and can clamp and position three surface of the frame part simultaneously.

Description

technical field [0001] The invention relates to an adaptive flexible positioning device and a positioning method for positioning and clamping frame parts during processing, which are applied in the field of aviation assembly engineering. Background technique [0002] Aircraft assembly is an important link in aircraft manufacturing. Among various structural parts of the aircraft, frame parts occupy an important position. They are often the main structural parts and load-bearing parts of the aircraft, and even the assembly benchmark of the entire large part. Its The level of installation accuracy directly affects the overall assembly accuracy, which requires the positioning accuracy of the positioning device for installing frame parts to be high, otherwise the overall assembly requirements cannot be met. [0003] The assembly process equipment mainly requires the device to have six characteristics: 1) usability; 2) coordination; 3) stability; 4) economy; 5) safety and 6) advan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B11/02
CPCB25B11/02
Inventor 李津灏
Owner SHENYANG AIRCRAFT CORP