Combined clamp for installing angular relation positioning pin

Abstract

The utility model belongs to the technical field of aviation casing assembly, and discloses a combined clamp used for installing an angular relation positioning pin, which comprises an aviation casing and a clamp body, the clamp body is used for assembling the positioning pin or the angular relation positioning pin on the aviation casing, two ends of the aviation casing are respectively provided with a positioning pin hole and an angular relation positioning pin hole, and the positioning pin hole and the angular relation positioning pin hole are arranged on the clamp body. The clamp body comprises a supporting plate, a fastening bolt, a special pin and a positioning cylinder, the supporting plate is of a rectangular frame structure, and a first positioning hole and a second positioning hole are formed in the two ends of the supporting plate respectively. High-precision positioning of the positioning pin and the angular pin is achieved, the assembling precision is greatly improved, the stability and consistency of the assembling process are ensured, and therefore the product quality and the qualified rate are improved, the assembling speed is greatly increased, and the requirement for large-scale production is met.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft casing assembly technology, specifically relating to a combination fixture for installing angular positioning pins. Background Technology

[0002] Currently, in existing aircraft casing manufacturing, the assembly of locating pins and angular pins relies on manual operation. Assembling two high-precision pins, with one pin requiring a 90° angle, necessitates manual alignment, insertion, and securing of these components. The entire process lacks precise positioning and securing methods. This manual assembly method is not only inefficient, but also susceptible to human error, relying on experience and intuition, leading to unstable assembly quality and severely impacting production efficiency and product quality. Therefore, existing high-precision aircraft casing angular pin and locating pin assembly suffers from several problems: slow speed, unable to meet the demands of large-scale production; lack of precise positioning tools resulting in significant assembly errors, affecting product quality and making precision difficult to guarantee; the need for prolonged high concentration, leading to fatigue and errors; and high physical exertion. Furthermore, manual assembly is significantly affected by human factors, resulting in large fluctuations and unstable product quality.

[0003] Based on this, this utility model designs a combination clamp for installing angular positioning pins to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a combination clamp for installing angular positioning pins, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined clamp for installing angular positioning pins, comprising an aircraft housing and a clamp body, wherein the clamp body is used to assemble the positioning pins or angular pins on the aircraft housing, the aircraft housing having positioning pin holes and angular pin holes respectively at both ends, the clamp body comprising a support plate, fastening bolts, special pins and positioning cylinders, the support plate being a rectangular frame structure, the support plate having a first positioning hole and a second positioning hole respectively at both ends, and the two special pins respectively penetrating through... The first and second positioning holes are inserted into the positioning pin hole and the angular pin hole. The surface of the support plate and the outer periphery of the second positioning hole are provided with a waist-shaped hole. The end of the positioning cylinder is provided with a boss that matches the waist-shaped hole. The top of the boss is provided with an assembly post. The top of the assembly post is provided with a clamping groove. One end of the positioning pin or angular pin is frictionally sleeved in the clamping groove. The support plate is provided with bolt through holes at opposite corners. The fastening bolt passes through the bolt through hole and is threaded to a clamping plate. The support plate is pressed against the aircraft casing.

[0006] Preferably, the first positioning hole and the second positioning hole on the support plate are respectively configured to match the positioning pin hole and the angular pin hole.

[0007] Preferably, the corners of the support plate are chamfered, the top of the special pin is cylindrical, and the bottom of the special pin is a rod-shaped structure that matches the positioning pin hole or the angular pin hole.

[0008] Preferably, the positioning cylinder is cylindrical, and the boss at the end of the positioning cylinder is slidably connected to the inner side of the waist-shaped hole, and the assembly column is configured to match the second positioning hole.

[0009] Preferably, the clamping groove is provided along the length direction of the boss, and the middle part of the clamping groove is provided with a groove that matches the positioning pin or angular pin.

[0010] Preferably, the clamping plate is configured as a disc structure, and the center of the clamping plate is provided with a threaded hole that matches the fastening bolt.

[0011] This utility model provides a combination clamp for installing angular positioning pins, which has the following advantages:

[0012] (1) This utility model has a simple structure and is easy to operate. It adopts a unique assembly method, which is convenient for disassembly and assembly, and reduces the cost of use. With the assistance of this combination fixture, the skill requirements and operation difficulty of workers are reduced. The high-precision positioning of this fixture ensures the stability and consistency of the assembly process, thereby improving product quality and pass rate.

[0013] (2) The combined fixture of this utility model adopts high-precision positioning elements and optimized design to achieve high-precision positioning of positioning pins and angular pins, which greatly improves the assembly accuracy. During assembly, the positional accuracy of positioning pins and angular pins is significantly improved, reducing the impact of assembly errors on the overall structure, greatly increasing the assembly speed, meeting the needs of large-scale production, and reducing the waste of parts caused by improper manual assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the combined clamp of this utility model fixed on the aircraft casing;

[0015] Figure 2 This is a structural schematic diagram of the aircraft casing of this utility model;

[0016] Figure 3 This is a schematic diagram of the support plate in the clamp body of this utility model;

[0017] Figure 4 This is a side view of the positioning cylinder after assembly.

[0018] Figure 5 This is a schematic diagram of the positioning cylinder of this utility model;

[0019] Figure 6 A schematic diagram of the structure of the aircraft casing of this utility model with the angular positioning pin assembled.

[0020] In the diagram: 1. Aircraft casing; 11. Locating pin hole; 12. Angular pin hole; 2. Fixture body; 21. Support plate; 211. First locating hole; 212. Second locating hole; 213. Waist-shaped hole; 214. Bolt through hole; 22. Fastening bolt; 221. Clamping plate; 23. Special pin; 24. Locating cylinder; 241. Boss; 242. Assembly column; 243. Clamping groove; 244. Groove; 3. Locating pin; 4. Angular pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figures 1-6As shown, this utility model provides a combined clamp for installing angular positioning pins, including an aircraft housing 1 and a clamp body 2. The clamp body 2 is used to assemble positioning pins 3 or angular pins 4 on the aircraft housing 1. Positioning pin holes 11 and angular pin holes 12 are respectively opened at both ends of the aircraft housing 1. The clamp body 2 includes a support plate 21, fastening bolts 22, special pins 23 and positioning cylinders 24. The support plate 21 is a rectangular frame structure. The two ends of the support plate 21 are respectively opened with a first positioning hole 211 and a second positioning hole 212. Two special pins 23 pass through the first positioning hole 211 and the second positioning hole 212 and are inserted into the positioning pin hole 11 and the angular pin hole 12, respectively. Through the two special pins 23, the support plate 21 can be positioned on the aircraft housing 1, ensuring that the first positioning hole 211 and the second positioning hole 212 correspond to the positioning pin hole 11 and the angular pin hole 12, respectively. The surface of the support plate 21 is located at the second positioning hole. The outer periphery of 212 is provided with a waist-shaped hole 213. The end of the positioning cylinder 24 is provided with a boss 241 that matches the waist-shaped hole 213. The top of the boss 241 is provided with an assembly post 242. The top of the assembly post 242 is provided with a clamping groove 243. One end of the positioning pin 3 or the angular pin 4 is frictionally sleeved in the clamping groove 243. Through the cooperation of the positioning cylinder 24 and the waist-shaped hole 213, the positioning pin 3 and the angular pin 4 can be conveniently positioned in the positioning pin hole 11 and the angular pin hole 12 respectively, realizing the high-precision positioning of the positioning pin 3 and the angular pin 4. The support plate 21 is provided with bolt through holes 214 at opposite corners. After the fastening bolt 22 passes through the bolt through hole 214, the clamping plate 221 is threaded and connected. The support plate 21 is pressed on the aircraft housing 1. The corresponding support plate 21 is pressed on the bottom of the aircraft housing 1 by tightening the fastening bolt 22, so that the clamping plate 221 can be firmly fixed on the aircraft housing 1.

[0023] In this embodiment, as Figure 2 and Figure 3 As shown, the first positioning hole 211 and the second positioning hole 212 on the support plate 21 are respectively designed to match the positioning pin hole 11 and the angular pin hole 12, so that the positioning pin 3 and the angular pin 4 can pass through and be accurately inserted into the positioning pin hole 11 and the angular pin hole 12.

[0024] Furthermore, the corners of the support plate 21 are chamfered, the top of the special pin 23 is cylindrical, and the bottom of the special pin 23 is a rod-shaped structure that matches the positioning pin hole 11 or the angular pin hole 12. With the special pin 23, it is convenient to place the bottom ends of the two special pins 23 into the corresponding positioning pin hole 11 and angular pin hole 12 through the first positioning hole 211 and the second positioning hole 212 respectively, so that the fixture body 2 can be positioned on the aircraft housing 1, which facilitates the subsequent assembly of the positioning pin 3 and the angular pin 4.

[0025] In a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the positioning cylinder 24 is cylindrical, and the boss 241 at the end of the positioning cylinder 24 is slidably connected to the inner side of the waist-shaped hole 213. The assembly column 242 is designed to match the second positioning hole 212, which makes it easy for the positioning cylinder 24 to be positioned in the waist-shaped hole 213 by the boss 241 at the end. It also makes it easy for the positioning cylinder 24 to slide and adjust inside the waist-shaped hole 213, so that the assembly column 242 can be accurately inserted into the second positioning hole 212, and the operation is simple.

[0026] In a preferred embodiment, such as Figure 1 , Figure 5 and Figure 6 As shown, the clamping groove 243 is arranged along the length of the boss 241, and the middle part of the clamping groove 243 is provided with a groove 244 that matches the positioning pin 3 or the angular pin 4, so that the end of the positioning pin 3 or the angular pin 4 can be fitted into the groove 244 at one end of the assembly post 242 on the positioning cylinder 24. The direction of the clamping groove 243 can also determine the placement angle of the angular pin 4, which makes it easy to assemble the positioning pin 3 and the angular pin 4 into the positioning pin hole 11 and the angular pin hole 12 on the aircraft housing 1, thereby greatly improving the assembly speed and meeting the needs of large-scale production.

[0027] In a preferred embodiment, such as Figure 1 and Figure 4 As shown, the clamping plate 221 is a disc structure. The center of the clamping plate 221 is provided with a threaded hole that matches the fastening bolt 22. By cooperating with the fastening bolt 22 and the clamping plate 221, the fastening bolt 22 is tightened, so that the clamping plate 221 is pressed against the outside of the aircraft housing 1, thereby pressing and fixing the support plate 21 onto the aircraft housing 1.

[0028] Working principle: In use, place the support plate 21 of the fixture body 2 on the aircraft housing 1. Use two special pins 23 to insert into the positioning pin hole 11 through the first positioning hole 211 and into the angular pin hole 12 through the second positioning hole 212, thus positioning the support plate 21 on the aircraft housing 1. Then tighten the fastening bolts 22 to press the clamping plate 221 against the bottom of the aircraft housing 1, firmly fixing the fixture body 2 on the aircraft housing 1. Remove the special pins 23. Use the positioning cylinder 24 to place the positioning pin 3 and the angular pin 4 into the clamping groove 243 on it respectively. Directly insert the positioning pin 3 into the positioning pin hole 11. Then determine the placement angle of the angular pin 4 by the direction of the clamping groove 243. After the angular pin 4 is placed, use the positioning cylinder 24 to engage with the oblong hole 213 on the support plate 21 to position the angular pin 4. Remove the positioning cylinder 24 and the support plate 21. Finally, knock the positioning pin 3 and the angular pin 4 into place. Figure 6 The assembled casing is all that's needed.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A combination clamp for mounting angular positioning pins, comprising an aircraft housing (1) and a clamp body (2), the clamp body (2) being used to assemble positioning pins (3) or angular pins (4) on the aircraft housing (1), characterized in that: The aircraft housing (1) has positioning pin holes (11) and angular pin holes (12) at both ends. The clamp body (2) includes a support plate (21), fastening bolts (22), special pins (23) and positioning cylinders (24). The support plate (21) is a rectangular frame structure. The support plate (21) has a first positioning hole (211) and a second positioning hole (212) at both ends. The two special pins (23) pass through the first positioning hole (211) and the second positioning hole (212) and are inserted into the positioning pin holes (11) and angular pin holes (12), respectively. The support plate (21) is located on the surface of the support plate (21) and in the second positioning hole (212). The outer periphery is provided with a waist-shaped hole (213). The end of the positioning cylinder (24) is provided with a boss (241) that matches the waist-shaped hole (213). The top of the boss (241) is provided with an assembly column (242). The top of the assembly column (242) is provided with a clamping groove (243). One end of the positioning pin (3) or the angular pin (4) is frictionally sleeved in the clamping groove (243). The support plate (21) is provided with bolt through holes (214) at opposite corners. The fastening bolt (22) passes through the bolt through hole (214) and is threaded to a clamping plate (221). The support plate (21) is pressed against the aircraft casing (1).

2. A combination clamp for installing angular positioning pins according to claim 1, characterized in that: The first positioning hole (211) and the second positioning hole (212) on the support plate (21) are respectively designed to match the positioning pin hole (11) and the angular pin hole (12).

3. A combination clamp for installing angular positioning pins according to claim 2, characterized in that: The corners of the support plate (21) are chamfered, the top of the special pin (23) is cylindrical, and the bottom of the special pin (23) is a rod-shaped structure that matches the positioning pin hole (11) or the angular pin hole (12).

4. A combination clamp for installing angular positioning pins according to claim 1, characterized in that: The positioning cylinder (24) is cylindrical, and the boss (241) at the end of the positioning cylinder (24) is slidably connected to the inner side of the waist-shaped hole (213). The assembly column (242) is designed to match the second positioning hole (212).

5. A combination clamp for installing angular positioning pins according to claim 4, characterized in that: The clamping groove (243) is arranged along the length direction of the boss (241), and the middle part of the clamping groove (243) is provided with a groove (244) that matches the positioning pin (3) or the angular pin (4).

6. A combination clamp for installing angular positioning pins according to claim 1, characterized in that: The clamping plate (221) is configured as a disc structure, and the center of the clamping plate (221) is provided with a threaded hole that matches the fastening bolt (22).

Images