Lightweight gas-liquid pressurization positioning pin shaft press-fitting equipment

Abstract

The utility model relates to the field of aviation, and provides light-weight gas-liquid pressurization positioning pin shaft press-fitting equipment which comprises a body, a lever mechanism is fixed to the upper portion of the body, a hydraulic cylinder, an air cylinder and a gas channel are arranged in the body, a hydraulic piston is arranged in the hydraulic cylinder, and pneumatic pistons are arranged in the air cylinder and the gas channel. Through the synergistic effect of the pneumatic piston and the hydraulic piston, the pin shaft can be accurately positioned and press-fitted, an operator can execute press-fitting through the action of a lever, the operation process is simplified, the assembly precision and reliability are improved, maintenance and overhaul are more convenient through a descending air port, an ascending air port and a connector plug communicated with a hydraulic cylinder of equipment, and the production efficiency is improved. And meanwhile, the flexibility and expandability of the equipment are improved, and the equipment uses compressed air as a power source, has the advantages of environmental protection and energy conservation, and is particularly suitable for assembling the pin shaft in a space-limited environment.

Description

Technical Field

[0001] This utility model relates to the aviation field, specifically to a lightweight gas-liquid pressurization positioning pin press-fitting device. Background Technology

[0002] A pin is a mechanical connector used to connect or secure two parts that need to rotate relative to each other by inserting a fastener, or to ensure that parts are fixed in position under stress. When assembling a pin, in addition to the pin itself, tools such as a press and expansion pliers are needed to ensure that the pin can be accurately and effectively installed in the required position.

[0003] In manufacturing industries such as aerospace, traditional tools such as presses and expanders cannot be used to assemble pins in confined spaces, and moving parts is difficult and inconvenient. Utility Model Content

[0004] To address the problems existing in the background technology, this utility model provides a lightweight gas-liquid booster positioning pin press-fitting device, which includes: a main body, a lever mechanism fixedly connected to the upper part of the main body, a hydraulic cylinder and a pneumatic cylinder arranged inside the main body, a gas passage connected inside the hydraulic cylinder and the pneumatic cylinder, a hydraulic piston movably connected inside the hydraulic cylinder, and a pneumatic piston movably connected inside the pneumatic cylinder and the gas passage.

[0005] In a preferred embodiment, the lever mechanism includes a clamping chuck, a clamping disc slidably connected to the side of the clamping chuck, protrusions on both sides of the clamping chuck, a first inclined surface at the bottom of the clamping chuck, two clamping chucks, a sliding groove on the clamping disc, two sliding grooves, and the protrusions on both sides of the clamping chuck are slidably connected in the two sliding grooves respectively.

[0006] In a preferred embodiment, the pneumatic piston includes a piston rod, a piston disc fixedly connected to the lower part of the piston rod, the piston rod being movably connected inside a gas passage, the piston disc being movably connected inside a cylinder, and the cylinder being positioned below the hydraulic cylinder.

[0007] In a preferred embodiment, the hydraulic piston has a second inclined surface inside, which is slidably connected to the first inclined surface.

[0008] In a preferred embodiment, the side of the body is provided with a descending air port and a rising air port. The descending air port is connected to the side of the cylinder and is located above the piston disc, while the rising air port is connected to the lower part of the cylinder.

[0009] In a preferred embodiment, two interface plugs are provided on the side of the body, and the interface plugs are connected to the hydraulic cylinder.

[0010] The beneficial effects achieved by this utility model are as follows:

[0011] First, the equipment uses compressed air to drive a pneumatic piston, which in turn pushes hydraulic oil to press-fit the pin. There is no need to move large parts, and the operator can complete the assembly work by holding the equipment, which greatly simplifies the operation process. The equipment is easy to carry and move, and is suitable for assembling pins in confined spaces, which improves the flexibility and efficiency of assembly.

[0012] Secondly, the lever mechanism design allows operators to perform pressing actions through simple lever movements, simplifying the operation process and reducing the difficulty of operation. Through the coordinated work of pneumatic and hydraulic pistons, precise positioning and pressing can be achieved, improving the accuracy and reliability of assembly.

[0013] Third, compressed air is introduced through the rising air hole to quickly push the pneumatic piston upward, compress the hydraulic oil, and drive the hydraulic piston upward, generating a large clamping force to achieve rapid pressing. By controlling the introduction and release of compressed air, the movement of the pneumatic piston and hydraulic piston can be precisely controlled to achieve precise positioning and pressing of the pin.

[0014] Fourth, the downward and upward air ports on the side of the main body, along with the connection design between the interface plug and the hydraulic cylinder, make equipment maintenance and repair more convenient. The rational air circuit design ensures the safety of the equipment during operation and prevents accidents. The interface plug on the side of the main body provides additional interfaces, allowing for the expansion or connection of other functional modules as needed, improving the flexibility and scalability of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the lever mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the clamping chuck structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the hydraulic piston structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the pneumatic piston structure of this utility model.

[0021] Numbering on the map:

[0022] 1. Body; 2. Lever mechanism; 201. Clamping head; 2011. Protrusion; 2012. First inclined surface; 202. Clamping plate; 2021. Sliding groove; 3. Hydraulic piston; 301. Second inclined surface; 4. Hydraulic cylinder; 5. Descending air port; 6. Pneumatic piston; 601. Piston rod; 602. Piston plate; 7. Cylinder; 8. Rising air port; 9. Interface plug; 10. Gas passage. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Reference Figures 1-6 A lightweight gas-liquid pressurized positioning pin assembly device includes a body 1, a lever mechanism 2 fixedly connected to the upper part of the body 1, a hydraulic cylinder 4 and a pneumatic cylinder 7 arranged inside the body 1, a gas channel 10 connected inside the hydraulic cylinder 4 and the pneumatic cylinder 7, a hydraulic piston 3 movably connected inside the hydraulic cylinder 4, and a pneumatic piston 6 movably connected inside the pneumatic cylinder 7 and the gas channel 10.

[0025] The lever mechanism 2 includes a clamping chuck 201, a clamping disc 202 slidably connected to the side of the clamping chuck 201, protrusions 2011 on both sides of the clamping chuck 201, a first inclined surface 2012 at the bottom of the clamping chuck 201, and two clamping chucks 201. The clamping disc 202 is provided with two sliding grooves 2021, and the protrusions 2011 on both sides of the clamping chuck 201 are slidably connected in the two sliding grooves 2021 respectively.

[0026] The pneumatic piston 6 includes a piston rod 601, a piston disc 602 fixedly connected to the lower part of the piston rod 601, the piston rod 601 being movably connected inside the gas passage 10, and the piston disc 602 being movably connected inside the cylinder 7, which is located below the hydraulic cylinder 4.

[0027] The hydraulic piston 3 has a second inclined surface 301 inside, which is slidably connected to the first inclined surface 2012.

[0028] The side of the main body 1 is provided with a descending air port 5 and a rising air port 8. The descending air port 5 is connected to the side of the cylinder 7 and is located above the piston disc 602. The rising air port 8 is connected to the lower part of the cylinder 7.

[0029] Two interface plugs 9 are provided on the side of the main body 1, and the interface plugs 9 are connected to the hydraulic cylinder 4.

[0030] The motion process of this lightweight pneumatic-hydraulic pressurized positioning pin assembly device is as follows: The main body 1 integrates a pneumatic cylinder 7 and a hydraulic cylinder 4. The pneumatic cylinder 7 pushes the hydraulic oil in the hydraulic cylinder 4 through the movement of a pneumatic piston 6. When the pneumatic piston 6 rises, it compresses the hydraulic oil, pushing the lever mechanism 2 connected to the hydraulic piston 3 to generate a clamping force. The lever mechanism 2 consists of a clamping chuck 201 and a clamping plate 202. The protrusions 2011 on both sides of the clamping chuck 201 slide within the sliding groove 2021 of the clamping plate 202. The second inclined surface 301 inside the piston 3 is slidably connected to the first inclined surface 2012 at the bottom of the clamping head 201 to realize the transmission of clamping force; the descending air port 5 and the ascending air port 8 on the side of the equipment are used to control the rise and fall of the pneumatic piston 6; compressed air is introduced into the ascending air port 8 to push the pneumatic piston 6 to rise, which in turn pushes the hydraulic piston 3 to rise, realizing the press-fitting of the pin; when the ascending air port 8 is closed, compressed air is introduced from the descending air port 5, the pneumatic piston 6 moves downward, releases the compression of the hydraulic oil, and realizes the release of the pin.

[0031] Align the clamping chuck 201 with the end of the pin, and introduce compressed air through the rising air port 8 to push the pneumatic piston 6 upward. The rise of the pneumatic piston 6 compresses the hydraulic oil, which in turn pushes the hydraulic piston 3 upward. The rise of the hydraulic piston 3 transmits clamping force to the lever mechanism 2 through the sliding connection between the second inclined surface 301 and the first inclined surface 2012, so that the clamping chuck 201 applies pressure to the pin. Continue to introduce compressed air until the pin is completely pressed into the large part. Then, close the supply of compressed air to the rising air port 8 to stop pushing the pneumatic piston 6. Then, open the descending air port 5 to introduce compressed air, causing the pneumatic piston 6 to move downward, releasing the compression of the hydraulic oil. The lever mechanism 2 moves outward, releasing the pin and completing one press-fit operation.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight gas-liquid pressurization positioning pin press-fitting device, characterized in that, It includes: The main body (1) has a lever mechanism (2) fixedly connected to its upper part. The main body (1) is equipped with a hydraulic cylinder (4) and a pneumatic cylinder (7). The hydraulic cylinder (4) and the pneumatic cylinder (7) are equipped with a gas passage (10) that is connected to each other. The hydraulic cylinder (4) is movably connected with a hydraulic piston (3). The pneumatic cylinder (7) and the gas passage (10) are movably connected with a pneumatic piston (6).

2. The lightweight gas-liquid pressurization positioning pin assembly equipment according to claim 1, characterized in that: The lever mechanism (2) includes a clamping chuck (201), a clamping plate (202) is slidably connected to the side of the clamping chuck (201), protrusions (2011) are provided on both sides of the clamping chuck (201), a first inclined surface (2012) is provided at the bottom of the clamping chuck (201), two clamping chucks (201) are provided, the clamping plate (202) is provided with a sliding groove (2021), two sliding grooves (2021) are provided, and the protrusions (2011) on both sides of the clamping chuck (201) are slidably connected in the two sliding grooves (2021) respectively.

3. The lightweight gas-liquid pressurization positioning pin press-fitting equipment according to claim 1, characterized in that: The pneumatic piston (6) includes a piston rod (601), and a piston disc (602) is fixedly connected to the lower part of the piston rod (601). The piston rod (601) is movably connected inside the gas passage (10), and the piston disc (602) is movably connected inside the cylinder (7). The cylinder (7) is located below the hydraulic cylinder (4).

4. The lightweight gas-liquid pressurization positioning pin press-fitting equipment according to claim 2, characterized in that: The hydraulic piston (3) has a second inclined surface (301) inside, which is slidably connected to the first inclined surface (2012).

5. The lightweight gas-liquid pressurization positioning pin assembly equipment according to claim 3, characterized in that: The body (1) has a descending air port (5) and a rising air port (8) on its side. The descending air port (5) is connected to the side of the cylinder (7) and is located above the piston disc (602). The rising air port (8) is connected to the lower part of the cylinder (7).

6. The lightweight gas-liquid pressurization positioning pin press-fitting equipment according to claim 1, characterized in that: The body (1) is provided with two interface plugs (9) on its side, and the interface plugs (9) are connected to the hydraulic cylinder (4).

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