A fuel filler assembly machine

Abstract

The utility model relates to oil filler neck assembly technical field discloses a kind of oil filler neck assembly machines, including rack, screw assembling device and fixture;Screw assembling device is located on rack, for grabbing screw, and screw is screwed in the thread hole of joint and valve body;Fixture includes base, at least two clamping mechanisms and pressure mechanism;Base is located on rack, below screw assembling device, chucking station is equipped on base, for placing the joint and valve body to be assembled;At least two clamping mechanisms are annularly spaced apart on base around chucking station, combination is used for clamping the joint and valve body of chucking station, and make the thread hole position of joint and valve body one to one relative;Pressure mechanism is located on base, for tightly pressing the joint and valve body of chucking station.The utility model can solve how to improve assembly efficiency, and guarantee the problem of assembly accuracy.

Description

Technical Field

[0001] This utility model relates to the field of refueling connector assembly technology, and specifically to a refueling connector assembly machine. Background Technology

[0002] Aviation pressure refueling connectors are key components for efficiently and safely adding aircraft fuel supplied by ground-based pressure refueling systems to aircraft fuel tanks. Their assembly efficiency and reliability directly impact flight safety and ground support effectiveness. Existing aviation pressure refueling connectors mainly consist of two parts: the connector itself and the valve body. Precise assembly between these two parts is fundamental to ensuring the connector's proper functioning. Traditionally, aviation pressure refueling connector assembly relied primarily on manual labor. However, with the continuous development of aviation technology, higher demands are placed on the assembly quality of refueling connectors, and traditional manual assembly methods are no longer sufficient to meet the technical requirements of high precision, leak prevention, and rapid connection.

[0003] To address the shortcomings of traditional manual assembly methods, existing refueling connector assembly machines have emerged. However, most current refueling connector assembly machines are semi-automatic, mainly composed of a screw-locking mechanism and a drive mechanism. During operation, the operator must first accurately align the threaded holes of the connector and valve body using visual inspection and experience. Then, the connector and valve body are manually clamped. Finally, the drive mechanism activates the screw-locking mechanism to install the screws into the threaded holes, completing the assembly of the connector and valve body.

[0004] However, this assembly process suffers from significant efficiency issues. Manually aligning and clamping the connectors and valve bodies is not only slow but also difficult to guarantee accuracy. Due to the limitations of manual operation, it is difficult to ensure extremely high precision in every alignment, which can easily lead to problems such as screw misalignment or jamming during assembly, affecting assembly quality. At the same time, the inefficient alignment and clamping process also limits the speed of the entire assembly process, failing to meet the demands of modern aerospace industry for high-efficiency production.

[0005] In view of the above-mentioned problems of existing refueling connector assembly machines, it is necessary to develop a refueling connector assembly machine with automated alignment and clamping function. Utility Model Content

[0006] (a) Technical problems to be solved This utility model provides a refueling connector assembly machine, which can at least solve the technical problem of how to improve assembly efficiency and ensure assembly accuracy.

[0007] (II) Technical Solution To solve the above-mentioned technical problems, this utility model provides the following technical solution: a refueling connector assembly machine, including a frame and a screw assembly device mounted on the frame, the screw assembly device being used to grip screws and screw the screws into the threaded holes of the connector and the valve body, so as to screw the connector and the valve body into a refueling connector; the refueling connector assembly machine further includes a clamp, the clamp including: The base is mounted on the frame and located below the screw assembly device. The base is equipped with a clamping station for placing the connectors and valve bodies to be assembled. At least two clamping mechanisms are arranged in a ring at intervals around the clamping station on the base. The combination of the at least two clamping mechanisms is used to clamp the connector and valve body at the clamping station to limit the relative movement of the connector and valve body in the horizontal direction and the relative rotation in the vertical direction, and to make the threaded holes of the connector and valve body face each other. A clamping mechanism, located on the base, is used to clamp the connector and valve body at the clamping station to limit the relative displacement of the connector and valve body in the vertical direction.

[0008] Furthermore, the aforementioned clamps are provided in at least two units, with each clamp spaced apart on the same straight line.

[0009] Furthermore, the aforementioned clamping mechanism includes: The pressure rod and the connecting rod are provided. One end of the connecting rod is rotatably mounted on the base, and the other end is rotatably connected to the pressure rod. The pressure rod includes a first end and a second end, which are located on both sides of the transition point of the pressure rod, respectively. The pressure rod drive assembly is mounted on the base. The output end of the pressure rod drive assembly is rotatably connected to the first end, and the second end is located above the clamping station. The pressure rod drive assembly is used to drive the first end to move vertically so that the second end moves toward or away from the clamping station, thereby pressing the connector and valve body of the clamping station tightly.

[0010] Furthermore, the aforementioned clamping mechanism is provided in at least two units, with each clamping mechanism arranged in a ring-shaped interval around the clamping station.

[0011] Further, both the aforementioned connector and valve body include six threaded protrusions with threaded holes, the threaded protrusions of the connector and valve body corresponding one-to-one and combined to form six threaded portions; the clamping mechanism includes: The positioning block has a positioning groove that is adapted to the screw connection part, and the positioning groove is set opposite to one of the screw connection parts of the clamping station. The positioning block drive assembly is located on the base. The output end of the positioning block drive assembly is detachably connected to the positioning block. The positioning block drive assembly is used to drive the positioning block to move towards or away from the clamping station so that the corresponding screw connection part moves into or out of the positioning groove.

[0012] Furthermore, the aforementioned positioning block is also provided with two limiting surfaces for abutting against the outer peripheral wall of the valve body. The two limiting surfaces are symmetrically distributed on both sides of the positioning groove, and a V-shaped groove is formed between the two limiting surfaces.

[0013] Further, the aforementioned fixture is slidably mounted on the frame, which is equipped with an assembly station and a loading station. The number of assembly stations, loading stations, and fixtures are the same, and they are set up in a one-to-one correspondence. The refueling connector assembly machine also includes a conveying device, which is mounted on the frame and connected to the clamp drive. The conveying device is used to drive the clamp to reciprocate between the corresponding assembly station and the corresponding loading station.

[0014] (III) Beneficial Effects Compared with the prior art, the refueling connector assembly machine provided by this utility model has the following beneficial effects: When using the refueling connector assembly machine provided by this utility model, firstly, the connector and valve body to be assembled are aligned and placed on the clamping station, so that the threaded holes of the connector and valve body are roughly aligned, making preliminary preparations for subsequent precise assembly; then, at least two clamping mechanisms work together to ensure that the threaded holes of the connector and valve body at the clamping station are precisely aligned one by one, and clamp the connector and valve body, effectively restricting the connector and valve body from relative movement in the horizontal direction and from relative rotation in the vertical direction, thus improving assembly accuracy; next, the pressing mechanism presses the connector and valve body at the clamping station, effectively restricting the connector and valve body from relative displacement in the vertical direction, thereby completely aligning the connector and valve body, further ensuring the stability of the assembly process, reducing assembly errors, and improving the quality of the refueling connector; after the connector and valve body are clamped, the screw assembly device grabs the screw and screws the screw into the threaded holes of the connector and valve body, thereby screwing the connector and valve body together as one, completing the assembly of the refueling connector. As can be seen, this utility model can automatically and accurately complete the alignment and clamping of the connector and valve body through the fixture, reduce manual intervention, greatly reduce the impact of human factors on assembly quality, thereby effectively improving assembly efficiency and ensuring assembly accuracy. Attached Figure Description

[0015] Figure 1 This is a perspective view of the refueling connector assembly machine in the embodiment; Figure 2 This is a perspective view of the fixture in the embodiment.

[0016] Icon labels: 1. Machine frame; 11. Assembly station; 12. Loading station; 2. Screw assembly device; 21. Screw fastening mechanism; 22. Drive mechanism; 3. Fixture; 31. Base; 311. Clamping station; 32. Clamping mechanism; 321. Positioning block; 3211. Positioning groove; 3212. Limiting surface; 322. Positioning block drive assembly; 33. Pressing mechanism; 331. Pressing rod; 3311. First end; 3312. Second end; 332. Connecting rod; 333. Pressing rod drive assembly; 4. Oil filling connector; 41. Connector; 42. Valve body; 43. Threaded connection; 431. Threaded protrusion; 432. Threaded hole; 5. Screw placement tray; 6. Conveying device. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides a refueling connector assembly machine to solve the problem of how to improve assembly efficiency and ensure assembly accuracy.

[0019] See Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the refueling connector assembly machine in the embodiment. Figure 2 The figure shows a perspective view of the fixture in the embodiment. The refueling connector assembly machine includes a frame 1, a screw assembly device 2, and a fixture 3.

[0020] The screw assembly device 2 is installed on the frame 1. The screw assembly device 2 is used to grab screws and screw them into the threaded holes 432 of the connector 41 and the valve body 42 to screw the connector 41 and the valve body 42 into an oiling connector 4.

[0021] The clamp 3 includes a base 31, at least two clamping mechanisms 32 and a pressing mechanism 33.

[0022] The base 31 is mounted on the frame 1 and located below the screw assembly device 2. The base 31 is provided with a clamping station 311, which is used to place the connector 41 and valve body 42 to be assembled.

[0023] At least two clamping mechanisms 32 are distributed in a ring-like interval on the base 31 around the clamping station 311. The combination of the at least two clamping mechanisms 32 is used to clamp the connector 41 and valve body 42 at the clamping station 311 to limit the relative movement of the connector 41 and valve body 42 in the horizontal direction and the relative rotation about the vertical direction, and to make the threaded holes 432 of the connector 41 and valve body 42 face each other one-to-one.

[0024] The clamping mechanism 33 is mounted on the base 31 and is used to clamp the connector 41 and valve body 42 of the clamping station 311 to limit the relative displacement of the connector 41 and valve body 42 in the vertical direction.

[0025] When using the refueling connector assembly machine described above, firstly, the connector 41 and valve body 42 to be assembled are aligned and placed on the clamping station 311, ensuring that the threaded holes 432 of the connector 41 and valve body 42 are roughly aligned, thus preparing for subsequent precise assembly. Then, at least two clamping mechanisms 32 work together to precisely align the threaded holes 432 of the connector 41 and valve body 42 on the clamping station 311, clamping the connector 41 and valve body 42. This effectively restricts relative movement between the connector 41 and valve body 42 in the horizontal direction and prevents relative rotation around the vertical direction, improving assembly accuracy. Next, the pressing mechanism 33 presses the connector 41 and valve body 42 firmly on the clamping station 311, effectively restricting relative displacement between the connector 41 and valve body 42 in the vertical direction, thereby ensuring complete alignment of the connector 41 and valve body 42, further ensuring the stability of the assembly process, reducing assembly errors, and improving the quality of the refueling connector 4. After clamping the connector 41 and valve body 42, the screw assembly device 2 picks up the screws and screws them into the threaded holes 432 of the connector 41 and valve body 42, thus screwing the connector 41 and valve body 42 together and completing the assembly of the refueling connector 4. It can be seen that this utility model, through the fixture 3, can automatically and accurately complete the alignment and clamping of the connector 41 and valve body 42, reducing manual intervention and greatly minimizing the impact of human factors on assembly quality, thereby effectively improving assembly efficiency and ensuring assembly accuracy.

[0026] See Figure 1 As shown, in one embodiment of the screw assembly device 2, the screw assembly device 2 includes a screw fastening mechanism 21 and a drive mechanism 22. The drive mechanism 22 is mounted on the frame 1 and is used to drive the screw fastening mechanism to assemble the screws into the threaded holes 432 of the connector 41 and the valve body 42, thereby completing the assembly of the connector 41 and the valve body 42.

[0027] The aforementioned screw fastening mechanism 21 can use an existing automatic screw fastening machine or electric screwdriver, and the drive mechanism 22 can use an existing three-axis drive mechanism or a robotic arm. In this way, the two work together to pick up the screws on the screw placement tray 5 and screw them into the threaded holes 432 of the connector 41 and the valve body 42.

[0028] See Figure 1As shown, in one embodiment of the fixture 3, at least two fixtures 3 are provided, with each fixture 3 spaced apart on the same straight line. Thus, when the screw assembly device 2 assembles the connector 41 and valve body 42 clamped on one of the fixtures 3, the operator can simultaneously perform loading or unloading operations on the other fixtures 3. This parallel operation mode can fully utilize the time potential in the production process, effectively reduce equipment idle waiting time, and thus significantly improve overall production efficiency. Furthermore, this layout design of the fixtures 3 facilitates production line planning and management, and is conducive to realizing automated production processes.

[0029] See Figure 2 As shown, in one embodiment of the clamping mechanism 33, the clamping mechanism 33 includes a pressure rod 331, a connecting rod 332, and a pressure rod drive assembly 333. One end of the connecting rod 332 is rotatably connected to the base 31 via a rotating shaft, and the other end is rotatably connected to the pressure rod 331 via a rotating shaft. The pressure rod 331 includes a first end 3311 and a second end 3312, which are located on both sides of the transition point of the pressure rod 331. The pressure rod drive assembly 333 is mounted on the base 31 by means of screwing or welding. The output end of the pressure rod drive assembly 333 is rotatably connected to the first end 3311 via a rotating shaft, and the second end 3312 is located above the clamping station 311. The pressure rod drive assembly 333 is used to drive the first end 3311 to move vertically, thereby causing the second end 3312 to move toward or away from the clamping station 311, thus clamping the connector 41 and valve body 42 of the clamping station 311. Thus, the clamping mechanism 33, through the cooperation of the pressure rod 331, the connecting rod 332 and the pressure rod drive assembly 333, can achieve precise clamping of the joint 41 and the valve body 42, ensuring the stability and consistency of the assembly and improving the assembly quality.

[0030] The aforementioned lever drive assembly 333 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles.

[0031] See Figure 1 and Figure 2 As shown, based on the above embodiment, at least two clamping mechanisms 33 are provided, and each clamping mechanism 33 is arranged in a ring-shaped interval around the clamping station 311. Thus, this invention, through at least two clamping mechanisms 33, can clamp the connector 41 and valve body 42 from at least two directions, further improving the stability and reliability of the assembly. Even if one clamping mechanism 33 malfunctions or its clamping force is insufficient, the other clamping mechanisms 33 can still ensure normal assembly, reducing assembly quality problems caused by unstable clamping and improving the product qualification rate.

[0032] See Figure 2As shown, in one embodiment of the clamping mechanism 33, the clamping mechanism 32 includes a positioning block 321 and a positioning block drive assembly 322. Both the connector 41 and the valve body 42 include six threaded protrusions 431 with threaded holes 432. The threaded protrusions 431 of the connector 41 and the valve body 42 correspond one-to-one and are combined to form six threaded portions 43. The positioning block 321 has a positioning groove 3211 adapted to the threaded portion 43, and the positioning groove 3211 is positioned opposite to one of the threaded portions 43 of the clamping station 311. The positioning block drive assembly 322 is mounted on the base 31 by screwing or welding, and the output end of the positioning block drive assembly 322 is detachably connected to the positioning block 321 by screwing or snapping. The positioning block drive assembly 322 is used to drive the positioning block 321 to move towards or away from the clamping station 311, so that the corresponding threaded portion 43 moves into or out of the positioning groove 3211. Thus, during clamping, at least two clamping mechanisms 32 simultaneously drive the positioning blocks 321 toward the clamping station 311 via the positioning block drive assembly 322, causing the corresponding threaded parts 43 to move into the positioning grooves 3211. This not only effectively restricts the relative movement of the connector 41 and valve body 42 in the horizontal direction, but also restricts their relative rotation in the vertical direction via the positioning grooves 3211, thereby achieving clamping of the connector 41 and valve body 42. Furthermore, the positioning grooves 3211 also ensure precise alignment of the threaded holes 432 of the connector 41 and valve body 42. It can be seen that this design of the clamping mechanism 32 effectively improves the accuracy and efficiency of assembly, reduces errors and time associated with manual positioning, ensures the assembly quality of the refueling connector 4, and reduces the scrap rate. In addition, the detachable design of the positioning blocks 321 allows for quick disassembly and replacement according to different refueling connectors 4 to be assembled, effectively improving the versatility of this invention.

[0033] The aforementioned positioning block drive assembly 322 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles.

[0034] See Figure 2 As shown, based on the above embodiment, the positioning block 321 also has two limiting surfaces 3212 for abutting against the outer peripheral wall of the valve body 42. The two limiting surfaces 3212 are symmetrically distributed on both sides of the positioning groove 3211, and a V-shaped groove is formed between the two limiting surfaces 3212. Thus, when the positioning block driving assembly 322 drives the positioning block 321 to move towards the clamping station 311, so that the corresponding screw part 43 moves into the positioning groove 3211, both limiting surfaces 3212 abut against the outer peripheral wall of the valve body 42, which can limit the valve body 42 from two directions, further improving the stability of the valve body 42 during the assembly process. In addition, the design of the V-shaped groove can accommodate the dimensional errors of the valve body 42, has a certain degree of versatility, and at the same time ensures the accuracy of the limiting, reduces the shaking and displacement of the valve body 42 during the assembly process, and improves the assembly accuracy.

[0035] See Figure 1 As shown, based on any of the above embodiments, the fixture 3 is slidably connected to the frame 1 via a slide rail. The frame 1 is provided with an assembly station 11 and a loading station 12. The number of assembly stations 11, loading stations 12, and fixtures 3 are the same, and they are arranged in a one-to-one correspondence. The refueling connector assembly machine also includes a conveying device 6, which is mounted on the frame 1 and is connected to the fixture 3 in a transmission manner. The conveying device 6 is used to drive the fixture 3 to reciprocate between the corresponding assembly station 11 and the corresponding loading station 12. In this way, when the conveying device 6 drives the fixture 3 to move to the loading station 12, the assembled refueling connector 4 can be easily removed from the fixture 3, and the connector 41 and valve body 42 to be assembled can be placed on the clamping station 311 for clamping. When the conveying device 6 drives the fixture 3 to move to the assembly station 11, the screw assembly device 2 can screw the connector 41 and valve body 42 on the clamping station 311 of the fixture 3 for assembly. As can be seen, the present invention can drive the clamp 3 to reciprocate between the assembly station 11 and the loading station 12 through the conveying device 6. This not only facilitates the loading and unloading operations, but also effectively avoids interference between the loading and unloading operations and the screw assembly operations, thereby improving the safety of the oiling connector 4 assembly process.

[0036] The aforementioned conveying device 6 can use existing linear drive mechanisms such as servo motor-screw and nut linear modules or servo motor-rack and pinion linear modules. The number of conveying devices 6 and fixtures 3 can be the same, with each fixture 3 driven independently for convenient independent loading and unloading. Alternatively, only one conveying device 6 can be set, driving several fixtures 3 to move synchronously, thus saving on drive costs.

[0037] If the present invention does not have a conveying device 6, the above-mentioned clamp 3 can be directly fixed to the frame 1 by means of screwing or welding.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A refueling connector assembly machine, comprising a frame and a screw assembly device disposed on the frame, the screw assembly device being used to grip screws and screw the screws into threaded holes of a connector and a valve body, thereby screwing the connector and the valve body together to form a refueling connector, characterized in that, The refueling connector assembly machine also includes a fixture, which comprises: A base is provided on the frame and located below the screw assembly device. The base is provided with a clamping station for placing the connector and valve body to be assembled. At least two clamping mechanisms are arranged in a ring at intervals around the clamping station on the base. The combination of the at least two clamping mechanisms is used to clamp the connector and valve body at the clamping station to restrict the relative movement of the connector and the valve body in the horizontal direction and the relative rotation in the vertical direction, and to make the threaded holes of the connector and the valve body face each other one by one. A clamping mechanism is provided on the base and is used to clamp the connector and the valve body at the clamping station to limit the relative displacement of the connector and the valve body in the vertical direction.

2. The refueling connector assembly machine according to claim 1, characterized in that, The number of clamps is at least two, and the clamps are arranged at intervals on the same straight line.

3. The refueling connector assembly machine according to claim 1 or 2, characterized in that, The clamping mechanism includes: A pressure rod and a connecting rod, one end of the connecting rod being rotatably mounted on the base, and the other end being rotatably connected to the pressure rod. The pressure rod includes a first end and a second end, which are located on both sides of the transition point of the pressure rod, respectively. A pressure rod drive assembly is disposed on the base. The output end of the pressure rod drive assembly is rotatably connected to the first end, and the second end is located above the clamping station. The pressure rod drive assembly is used to drive the first end to move in the vertical direction, so as to drive the second end to move toward or away from the clamping station, thereby pressing the connector and valve body of the clamping station tightly.

4. The refueling connector assembly machine according to claim 3, characterized in that, The number of clamping mechanisms is at least two, and each clamping mechanism is arranged in a ring-shaped interval around the clamping station.

5. The refueling connector assembly machine according to any one of claims 1, 2, and 4, characterized in that, Both the connector and the valve body include six threaded protrusions with threaded holes, the threaded protrusions of the connector and the valve body are one-to-one corresponding and are combined to form six threaded portions; the clamping mechanism includes: A positioning block, wherein the positioning block is provided with a positioning groove adapted to the screw connection, and the positioning groove is positioned opposite to one of the screw connections of the clamping station; A positioning block drive assembly is disposed on the base. The output end of the positioning block drive assembly is detachably connected to the positioning block. The positioning block drive assembly is used to drive the positioning block to move toward or away from the clamping station so that the corresponding screw connection part moves into or out of the positioning groove.

6. The refueling connector assembly machine according to claim 5, characterized in that, The positioning block is also provided with two limiting surfaces for abutting against the outer peripheral wall of the valve body. The two limiting surfaces are symmetrically distributed on both sides of the positioning groove, and a V-shaped groove is formed between the two limiting surfaces.

7. The refueling connector assembly machine according to any one of claims 1, 2, 4 and 6, characterized in that, The fixture is slidably mounted on the frame, which is provided with an assembly station and a loading station. The number of assembly stations, loading stations and fixtures are the same and they are set up in a one-to-one correspondence. The refueling connector assembly machine also includes a conveying device, which is mounted on the frame and connected to the fixture via a transmission. The conveying device is used to drive the fixture to reciprocate between the corresponding assembly station and the corresponding loading station.

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