Quickly mounted and positioned stringer positioner

Abstract

The utility model belongs to the technical field of aircraft assembly, and particularly relates to a stringer positioner capable of being rapidly installed and positioned. The stringer locator is rapidly installed through the locating pin, the locator can be in an opening state and a contracting state through the long round hole and the anti-disengaging pin structure, and it is guaranteed that a stringer is located and tightly attached to the inner shape of a skin through the rapid clamp and the pressing device. The device has the advantages that the structure is simple, the applicability is high, and the popularization range is large; the positioning holes are digitally controlled in a part state, so that the adjustment time of field installation is reduced; two positioning states are achieved, and products can enter and exit from the clamping plate easily; the part placing time can be shortened through the anti-falling pin structure, and tool part management on a production site is facilitated; and the operation convenience is improved by the quick clamp and the presser, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft assembly, and in particular relates to a long stringer positioner for rapid installation and positioning. Background Art

[0002] In the field of aircraft assembly technology, stringer locators are usually one of the most numerous and frequently used locators, used to ensure that the stringers are accurately positioned and always fit in place with the skin panels during the assembly process of aircraft components. Figure 1 As shown, the positioning method is that the bolt passes through the through hole on the card plate, is screwed into the threaded hole of the positioner base, and is finally fixed by a nut. Due to the reasons of the hole-axis gap and the thread gap, the positioning accuracy of the long-span parts such as the long stringer will be reduced during assembly, especially when the card plate is re-processed. Before and after the disassembly of the positioner, the repeated positioning accuracy of the long stringer is difficult to guarantee. In addition, its clamping function is achieved by twisting the thread, which has low work efficiency and is difficult to meet the higher requirements of aircraft product assembly quality. The structure of the guide rail long stringer positioner is as follows Figure 2 As shown, it contains multiple precision parts, such as guide rails with tiny steel balls, slider assemblies, etc. It has a complex structure, a large number of parts, and requires high processing precision. The main engine manufacturers basically do not have special processing equipment for these parts. Most of the positioners are obtained through outsourcing of finished products, which significantly increases the manufacturing cost of the tooling and has no advantages in later maintenance and parts replacement. Utility Model Content

[0003] (1) Technical problems solved:

[0004] The utility model overcomes the deficiencies in the prior art methods and provides a long stringer positioner that can be quickly installed and positioned.

[0005] (2) Technical solution:

[0006] In order to solve the above technical problems, the present invention is realized through the following technical solutions: providing a long stringer positioner for rapid installation and positioning,

[0007] The device comprises: a quick clamp 1, a positioner 2, a clamp 4, a support 5, a pin 6, a double-shoulder bushing 7, and an anti-drop pin 8;

[0008] Among them: a quick clamp 1 is provided on the upper part of the locator 2, and the pressure head can be pressed on the positioning surface of the long stringer by swinging the handle at the rear. A clamp 4 is provided at the lower part of the locator 2, and the long stringer and the inner surface of the skin are always in contact with each other during the assembly process through the pressure head. The support 5 of the long stringer locator is fixed to the clamping plate through two pins 6, and two double-shoulder bushings 7 are installed on the support 5; the locator 2 is connected to the support 5 through a pin 6 and two anti-slip pins 8, and the hole at the fixed pin 6 is an oblong hole.

[0009] Furthermore, when the anti-drop pin 8 is pulled out, the locator 2 can be dragged to slide by the handle 3, and the handle 3 is connected to the locator through a thread.

[0010] Furthermore, the positioning pin holes on the clamping plate, support 5 and locator 2 are all made by CNC machine tools when they are in the part state, which can ensure the positioning accuracy within ±0.05. This quick installation structure will significantly reduce the installation time of on-site operators and can also ensure repeatable positioning accuracy.

[0011] Furthermore, the middle section of the double-shoulder bushing 7 is provided with an elastic caliper. When the anti-dropout pin 8 is pulled out, the elastic caliper will be tightened and stuck in the conical depression at the front end of the anti-dropout pin 8, and supported by the double-shoulder bushing 7, thereby preventing the pin from dropping out. This structural form of the anti-dropout pin reduces the time for placing parts at the production site, and there is no need to manage a large number of pins.

[0012] Furthermore, the front section of the quick clamp 1 is provided with a pressing head, and the pressing head presses the middle section of the long stringer.

[0013] Furthermore, the presser 4 is a telescopic pressing structure.

[0014] 3 Beneficial technical effects:

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The positioning pin holes of the device are all made by CNC machine tools when the parts are in the state, which ensures the positioning accuracy and reduces the installation hours of on-site operators; 2. It has two positioning states, working and non-working, which is conducive to the entry and exit of products in and out of the pallet; 3. The anti-drop pin structure can reduce the time for placing parts and facilitate the management of tooling parts on the production site; 4. The quick clamps and clamps improve the convenience of operation and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention includes 3 figures, and the descriptions of the figures are as follows:

[0017] Figure 1 Axonometric drawing of the traditional long stringer locator structure;

[0018] Figure 2 Axonometric drawing of the guide rail type long stringer positioner structure;

[0019] Figure 3 A front view of the long stringer positioner of the present utility model;

[0020] Among them, 1-quick clamp, 2-locator, 3-handle, 4-presser, 5-support, 6-pin, 7-double-shoulder bushing.

[0021] Figure 4 A left side view of the long stringer positioner of the present utility model;

[0022] Among them, 6-pin, 7-double-shoulder bushing, 8-anti-drop pin.

[0023] Figure 5 Axonometric drawing of the structure of the utility model anti-drop pin

[0024] Among them, 7-double shoulder bushing, 8-anti-drop pin. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] like Figure 3 and Figure 4 As shown, a long stringer positioner for quick installation and positioning is provided, which includes: a quick clamp 1, a positioner 2, a handle 3, a clamp 4, a support 5, a pin 6, a double-shoulder bushing 7, and an anti-drop pin 8;

[0027] Among them: the support 5 of the long string locator is fixed to the pallet by two pins 6, and two double-shoulder bushings 7 are installed on the support 5; the locator 2 is connected to the support 5 by a pin 6 and two anti-drop pins 8, and the hole at the fixed pin 6 is an oblong hole. When the anti-drop pin 8 is pulled out, the locator 2 can be dragged and slid by the handle 3 to select the working and non-working states for positioning, which is convenient for aircraft products to enter and exit the pallet. The handle 3 is connected to the locator by a thread; the locating pin holes on the pallet, the support 5, and the locator 4 are all made by CNC machine tools when they are in the part state, which can ensure the positioning accuracy within ±0.05. This quick installation structure will significantly reduce the installation time of on-site operators and can also ensure repeated positioning accuracy.

[0028] The structure of the anti-drop pin 8 and the shoulder bushing 7 is as follows Figure 5 As shown, the double-shoulder bushing is provided with an elastic clamp. When the anti-drop pin 8 is pulled out, the elastic clamp will be tightened and clamped in the conical depression at the front end of the anti-drop pin 8, and supported by the double-shoulder bushing 7, thereby preventing the pin from dropping out. This anti-drop pin structure reduces the time for placing parts at the production site and eliminates the need to manage a large number of pins.

[0029] A quick clamp 1 is provided on the upper part of the positioner 2. The pressure head can be pressed on the positioning surface of the long stringer by swinging the handle at the rear, instead of the traditional threaded pressing form, which improves production efficiency; a clamp 4 is provided on the lower part of the positioner 2. The pressure head ensures that the long stringer and the inner surface of the skin are always in contact during the assembly process, ensuring production quality.

[0030] Installation process: The positioning pin holes on the pallet, the device's support 5, and the locator 2 are machined in their original component form using CNC machine tools, ensuring positioning accuracy within ±0.05. First, the support 5 is secured to the pallet by inserting two pins 6. Then, the locator 2, equipped with the quick-action clamp 1 and the clamp 4, is connected to the support 5 using a pin 6 and two anti-drop pins. This allows the device to be quickly installed on the pallet while ensuring positioning accuracy.

[0031] Usage process: The long stringer positioner has two states: working and non-working. When the product enters and exits the pallet, the anti-drop pin 8 can be pulled out, the handle 3 can be dragged to pull the positioner 2 to the rear side, and then the two anti-drop pins 8 can be inserted; when the long stringer needs to be positioned, the long stringer positioner is in the working state, the handle 3 can be dragged to move the positioner 2 to the front side, and the two anti-drop pins 8 can be inserted. The quick clamp 1 can be swung to make the pressure head press the positioning surface of the long stringer web, and the pressure device 4 can be swung to make the long stringer and the inner surface of the skin always fit together during the assembly process, thereby achieving the purpose of long stringer positioning.

Claims

1. A long stringer positioner for rapid installation and positioning, characterized in that: include: Quick clamp (1), positioner (2), presser (4), support (5), pin (6), shoulder bushing (7), anti-drop pin (8); Wherein: a quick clamp (1) is provided on the upper part of the locator (2); a pressure head can be pressed on the positioning surface of the long stringer by swinging the handle at the rear; a pressing device (4) is provided on the lower part of the locator (2); the long stringer and the inner surface of the skin are always fitted together during the assembly process by the pressure head; a support (5) of the long stringer locator is fixed on the clamping plate by two pins (6); two double-shoulder bushings (7) are installed on the support (5); the locator (2) is connected to the support (5) by a pin (6) and two anti-drop pins (8); the hole at the fixed pin (6) is an oblong hole.

2. The long stringer positioner for rapid installation and positioning according to claim 1, characterized in that: When the anti-drop pin (8) is pulled out, the positioner (2) can be dragged to slide by the handle (3), and the handle (3) is connected to the positioner through a thread.

3. The long stringer positioner for rapid installation and positioning according to claim 1, characterized in that: The positioning pin holes on the clamping plate, the support (5) and the positioner (2) are all made by a numerical control machine tool when they are in the component state, which can ensure that the positioning accuracy is within ±0.

05.

4. The long stringer positioner for rapid installation and positioning according to claim 1, characterized in that: The middle section of the double-shoulder bushing (7) is provided with an elastic clamp. When the anti-drop pin (8) is pulled out, the elastic clamp is tightened and clamped at the conical depression at the front end of the anti-drop pin (8), and is supported by the double-shoulder bushing (7), thereby preventing the pin from dropping out.

5. The long stringer positioner for rapid installation and positioning according to claim 1, characterized in that: The front section of the quick clamp (1) is provided with a pressure head, and the pressure head presses the middle section of the long stringer.

6. The long stringer positioner for rapid installation and positioning according to claim 1, characterized in that: The pressing device (4) is a telescopic pressing structure.

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