Rapid bolt positioning device

By designing a quick-positioning device for the pin and utilizing the linkage between the outer and inner rotating clamping mechanisms, the problem of easy loss of the movable pin is solved, achieving accurate positioning and convenient use of the pin.

CN223998216UActive Publication Date: 2026-03-17CHANGHE AIRCRAFT INDUSTRIES CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In aircraft assembly, movable pins are easily placed randomly, making them difficult to find and prone to being lost, which leads to inconvenience in part positioning.

Method used

Design a quick positioning device for a pin, including a pin, a base and a quick clamp. Through the linkage of an outer rotating clamping mechanism and an inner rotating clamping mechanism, the pin can be accurately positioned and unlocked, and fixed on the fixture.

Benefits of technology

This achieves the fixation and accurate positioning of the pins, preventing loss and improving the convenience and accuracy of aircraft part positioning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to an aircraft assembly technology, and relates to a quick bolt positioning device. The positioning device comprises a bolt, a base and a quick clamp; the base is provided with a center hole, the bolt penetrates into the center hole, the top end of the bolt is connected with the movable end of the quick clamp, and the base is fixedly connected with the fixed end of the quick clamp. The quick clamp comprises an outer rotary clamping mechanism and an inner rotary clamping mechanism; the inner rotary clamping mechanism comprises a handle section and an inner rotary section; an inner rotating section and a handle section; the turning transition part of the inner rotating section and the handle section is connected with the upper end of the outer rotating clamping mechanism through a rotating shaft; the lower end of the outer rotary clamping mechanism is connected with the base through a rotating shaft; and the bolt, the outer rotary clamping mechanism and the inner rotary clamping mechanism are linked through three rotating shafts.
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Description

Technical Field

[0001] This utility model belongs to aircraft assembly technology and relates to a quick positioning device for pins. Background Technology

[0002] In aircraft assembly, a structure using movable pins and precision holes is often used to accurately position aircraft parts. However, movable pins are often placed randomly, making them difficult to find and easy to lose. Utility Model Content

[0003] Purpose of the utility model: To facilitate the quick and easy use of the positioning pin, a device is needed to fix the pin position on the frame, so that the pin can be pushed out and pulled back when in use.

[0004] Technical solution

[0005] A quick-positioning device for a pin is proposed, comprising a pin, a base, and a quick-clamping device;

[0006] The base has a central hole, a pin passes through the central hole, the top of the pin is connected to the movable end of the quick clamp, and the base is fixedly connected to the fixed end of the quick clamp.

[0007] The quick clamp includes: an outer rotary clamping mechanism and an inner rotary clamping mechanism;

[0008] The inner rotary clamping mechanism includes a handle section and an inner rotary section; the lower end of the inner rotary section is connected to a pin via a pivot, and the transition point between the inner rotary section and the handle section is connected to the upper end of the outer rotary clamping mechanism via a pivot; the lower end of the outer rotary clamping mechanism is connected to the base via a pivot; the pin, the outer rotary clamping mechanism, and the inner rotary clamping mechanism are linked together via three pivots.

[0009] The base and the pin are precisely matched.

[0010] The base is fixedly installed on the fixture, and the pin engages with the positioning hole of the fixture.

[0011] When the handle of the quick clamp is pressed down, the pin is pushed out along the guide hole in the middle of the base, and by engaging with the precision hole on the fixture, the part is accurately locked and positioned.

[0012] Pulling the handle of the quick clamp upwards causes the pin to be pulled out along the guide hole in the middle of the base, thus unlocking the clamp.

[0013] Beneficial effects:

[0014] This utility model can be fixed on a jig fixture. It adopts a structure of movable pins and precision holes to accurately position aircraft parts. It is convenient and quick to use in daily life and is not easy to lose. Attached Figure Description

[0015] Figure 1a This is a schematic diagram of the quick-positioning device for the pin.

[0016] Figure 1b This is a cross-sectional view of the quick-positioning device for the pin.

[0017] Figure 2 This is a schematic diagram of the structure of pin 1, base 2 and quick clamp 3. Detailed Implementation

[0018] This utility model provides a quick positioning device for a pin, such as Figure 1a , 1b As shown in Figure 2, the device comprises three parts: a pin 1, a base 2, and a quick clamp 3. The pin 1 is connected to the pin of the quick clamp 3 through the mounting hole at the top. The base 1 is fixed to the tooling frame by bolts and fixing pins. The quick clamp is installed in the holes on both sides of the base 2 by two pins at the bottom.

[0019] The quick clamp includes: an outer rotary clamping mechanism and an inner rotary clamping mechanism;

[0020] The inner rotary clamping mechanism includes a handle section and an inner rotary section; the lower end of the inner rotary section is connected to a pin via a pivot, and the transition point between the inner rotary section and the handle section is connected to the upper end of the outer rotary clamping mechanism via a pivot; the lower end of the outer rotary clamping mechanism is connected to the base via a pivot; the pin, the outer rotary clamping mechanism, and the inner rotary clamping mechanism are linked together via three pivots.

[0021] The base and the pin are precisely matched.

[0022] The base is fixedly installed on the fixture, and the pin engages with the positioning hole of the fixture.

[0023] Furthermore, during operation, by grasping the handle of the quick clamp 3 and pressing it down, the pin 1 is pushed down along the guide hole in the middle of the base 2, and by engaging with the precision hole on the frame, the part is accurately positioned.

Claims

1. A latch quick positioning device, characterized in that, It comprises a latch (1), a base (2), and a quick clamp (3). The base (2) is provided with a center hole, the latch (1) penetrates into the center hole, the top end of the latch (1) is connected with the movable end of the quick clamp (3), and the base (2) is fixedly connected with the fixed end of the quick clamp (3). The quick clamp (3) comprises an outer rotary clamping mechanism and an inner rotary clamping mechanism. The inner rotary clamping mechanism comprises a handle section and an inner rotary section; the inner rotary section and the handle section; the lower end of the inner rotary section is connected with the latch (1) through a rotating shaft, the transition between the inner rotary section and the handle section is connected with the upper end of the outer rotary clamping mechanism through a rotating shaft; the lower end of the outer rotary clamping mechanism is connected with the base (2) through a rotating shaft; the latch (1), the outer rotary clamping mechanism, and the inner rotary clamping mechanism are connected through three rotating shafts.

2. The apparatus of claim 1, wherein, The base (2) is precisely matched with the latch (1).

3. The apparatus of claim 1, wherein, The base (2) is fixedly installed on a tool, and the latch (1) is matched with a positioning hole of the tool.

4. The apparatus of claim 1, wherein, The handle section of the quick clamp (3) is pressed downward, the latch (1) is pushed out along the matching guide hole in the middle of the base (2), and is matched with a precision hole on a mold frame, so that accurate locking and positioning of a part are realized.

5. The apparatus of claim 4, wherein, The handle section of the quick clamp (3) is pulled upward, the latch (1) is pulled out along the matching guide hole in the middle of the base (2), and is unlocked.