Positioning fixture for milling an aviation hydraulic oil tank

Abstract

The utility model discloses a kind of positioning fixtures of aviation hydraulic oil tank body milling, including multiple groups of moving assembly being arranged in the both sides of workbench, multiple jacking assemblies are installed in workbench, and multiple jacking assemblies are spliced in workbench top;Workbench is equipped with two groups, and driving motor box is equipped between two groups of workbench, and driving motor box drives moving assembly to move in the both sides of workbench;Fixed assembly is installed on moving assembly;The utility model is through the synergic effect of moving assembly and fixed assembly, same side fixed assembly is symmetrically arranged, and opposite side multiple groups are arranged, and uniform clamping force can be applied to workpiece from multiple directions;While jacking assembly is supported from bottom, and the connecting hole positioning of cooperation fixed assembly forms the stable structure of upper and lower clamping and bottom support;Moving assembly is driven to move screw by driving motor box, realize horizontal movement along workbench, and the design of rotating shaft, rotating plate and adjusting shaft body can flexibly adjust the angle and position of fixed assembly.

Description

Technical Field

[0001] This utility model specifically relates to a positioning fixture for milling the body of an aviation hydraulic oil tank. Background Technology

[0002] Aviation hydraulic oil tanks are the core components of aviation hydraulic systems. They perform key functions such as storing hydraulic oil, dissipating heat, separating air and impurities from the oil, and providing a stable oil supply to the hydraulic pump. Their performance directly affects the flight safety and operational reliability of aircraft. Aviation hydraulic oil tanks are mostly made of lightweight materials such as aluminum alloys and are typical thin-walled parts. They need to be positioned and fixed during milling to facilitate subsequent processing.

[0003] Traditional fixtures use rigid clamping to fix workpieces, which can easily lead to deformations such as outward expansion of the box side plate and trembling of the front frame due to local stress concentration. This also increases the risk of cracking of the welded surface. Existing positioning fixtures have fixed clamping positions, making it difficult to position and fix them according to different box positions. The box needs to be manually fixed before milling, which is inefficient. Furthermore, manual fixing cannot guarantee the fixing effect and is prone to displacement during milling, resulting in a high workpiece scrap rate and increased production costs.

[0004] Therefore, it is necessary to invent a positioning fixture for milling aviation hydraulic oil tank bodies to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a positioning fixture for milling the body of an aviation hydraulic oil tank, which can quickly position and fix the workpiece.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for milling an aviation hydraulic oil tank body, comprising multiple sets of moving components arranged on both sides of a worktable, wherein multiple lifting components are installed inside the worktable, and the multiple lifting components are spliced ​​on the top of the worktable;

[0009] The worktable is provided in two sets, and a drive motor box is provided between the two sets of worktables. The drive motor box drives the moving component to move on both sides of the worktable.

[0010] The moving component is equipped with a fixing component, which works in conjunction with the lifting component to position and clamp the aviation hydraulic oil tank body workpiece.

[0011] Preferably, the moving component includes a moving lead screw disposed in the moving slots on both sides of the worktable. One end of the moving lead screw is connected to a motor in the drive motor housing. The moving lead screw is provided with multiple moving blocks. Auxiliary components are also installed on the upper and lower sides of the multiple moving blocks. The multiple moving blocks are provided with a first rotating hole. A first rotating shaft is installed in the first rotating hole. A rotating plate is installed on the first rotating shaft. The top two sides of the rotating plate are provided with mounting ears. The mounting ears on both sides are provided with a second rotating hole. A second rotating shaft is installed in the second rotating hole. An adjusting shaft is installed on the second rotating shaft. The fixing component is installed at one end of the adjusting shaft.

[0012] Preferably, the fixing assembly includes a rotating base fixed to one end of the adjusting shaft, a fixing block connected to the rotating base, a fastening groove at the bottom of the fixing block, an installation hole at the bottom of the fastening groove, a fixing cylinder extending from one side of the top of the fixing block, a telescopic arm connected to the bottom of the fixing cylinder, a fixing plate connected to the bottom of the telescopic arm, a buffer pad connected to the bottom of the fixing plate, and the bottom surface of the buffer pad contacting the top of the lifting assembly.

[0013] Preferably, the fixing components on the same side are symmetrically arranged, and two sets of fixing components are provided on opposite sides of the worktable, with the buffer pad covering the top of the lifting component.

[0014] Preferably, the auxiliary component includes auxiliary grooves disposed on the upper and lower sides of the movable block, a plurality of rollers are installed in the auxiliary grooves, and rolling grooves matching the rollers are provided on the upper and lower sides of the movable groove, and the rollers move synchronously with the movable block.

[0015] Preferably, the lifting assembly includes a plurality of lifting cylinders disposed in the lifting groove inside the workbench, the top of the plurality of lifting cylinders is connected to a lifting panel, the plurality of lifting panels are spliced ​​at the opening of the lifting groove, and the lifting panel is provided with a plurality of connecting holes, the plurality of connecting holes being connected to the fixing assembly.

[0016] Preferably, the drive motor housing is T-shaped, and one side of the bottom of the worktable on both sides is provided with a connecting slot that matches the bottom of the drive motor housing.

[0017] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:

[0018] 1. This utility model utilizes the synergistic effect of the moving component and the fixed component. The fixed components are symmetrically arranged on the same side and multiple sets are arranged on the opposite side, which can apply uniform clamping force to the workpiece from multiple directions. At the same time, the lifting component lifts and supports from the bottom, and is positioned in conjunction with the connecting holes of the fixed component, forming a stable structure of upper and lower clamping and bottom support, which effectively avoids workpiece shaking or displacement during milling and significantly improves machining accuracy.

[0019] 2. The moving component of this utility model is driven by a moving lead screw via a drive motor housing to achieve horizontal movement along the worktable. The design of the rotating shaft, rotating plate, and adjusting shaft allows for flexible adjustment of the angle and position of the fixed component. The lifting component adjusts its height via multiple lifting cylinders, and the spliced ​​lifting panel can accommodate workpieces of different sizes. This multi-dimensional adjustment capability allows it to adapt to aviation hydraulic oil tanks of different specifications and shapes, improving the versatility of the fixture. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the single workbench of this utility model.

[0023] Figure 3 This is a schematic diagram of the workbench structure of this utility model;

[0024] Figure 4 This is a structural breakdown diagram of the movable and fixed components of this utility model;

[0025] Figure 5 This is a schematic diagram of the disassembled structure of the fixing component of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Workbench; 11. Moving groove; 12. Rolling groove; 13. Lifting groove; 14. Connecting groove; 2. Moving assembly; 21. Moving lead screw; 22. Moving block; 23. Rotating hole one; 24. Rotating shaft one; 25. Rotating plate; 26. Mounting ear; 27. Rotating hole two; 28. Rotating shaft two; 29. ​​Adjusting shaft; 3. Lifting assembly; 31. Lifting cylinder; 32. Lifting panel; 33. Connecting hole; 4. Drive motor box; 5. Fixing assembly; 51. Rotating base; 52. Fixing block; 53. Fastening groove; 54. Mounting hole; 55. Fixing cylinder; 56. Telescopic arm; 57. Fixing plate; 58. Buffer pad; 6. Auxiliary assembly; 61. Auxiliary groove; 62. Roller. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-5 The positioning fixture shown is for milling an aviation hydraulic oil tank body, including multiple sets of moving components 2 arranged on both sides of a worktable 1, and multiple lifting components 3 installed inside the worktable 1, with the multiple lifting components 3 spliced ​​on the top of the worktable 1.

[0030] Specifically, the workbench 1 is provided in two sets, and a drive motor box 4 is provided between the two sets of workbench 1. The drive motor box 4 drives the moving component 2 to move on both sides of the workbench 1.

[0031] Specifically, a fixed component 5 is installed on the moving component 2, and the fixed component 5 cooperates with the lifting component 3 to position and clamp the aviation hydraulic oil tank body workpiece.

[0032] In this embodiment, the installation of each component is checked to ensure that the drive motor housing 4 and the two side worktables 1 are precisely aligned through the connecting slots 14, and that the moving screw 21 of the moving component 2 is securely connected to the motor inside the drive motor housing 4. Simultaneously, it is confirmed that the lifting cylinder 31 of the lifting component 3 is properly installed in the lifting slot 13, and the lifting panel 32 is properly assembled; the fixing cylinder 55, telescopic arm 56, and other components of the fixing component 5 are functioning normally, and the buffer pad 58 is undamaged.

[0033] In this embodiment, the aviation hydraulic oil tank body workpiece is placed on the lifting panel 32 of the lifting assembly 3. Based on the workpiece size, the lifting cylinder 31 is activated, and the workpiece is lifted to a suitable height via the lifting panel 32. Subsequently, the drive motor housing 4 drives the moving lead screw 21 to rotate, causing the moving block 22 to move within the moving groove 11. The rollers 62 of the auxiliary components 6 on both sides of the moving block 22 roll within the rolling grooves 12 of the moving groove 11, allowing the auxiliary moving block 22 to move smoothly, bringing the fixing assembly 5 closer to both sides of the workpiece.

[0034] Reference Figure 3-4 The moving component 2 includes a moving lead screw 21 disposed in the moving slots 11 on both sides of the worktable 1. One end of the moving lead screw 21 is connected to a motor in the drive motor housing 4. Multiple moving blocks 22 are provided on the moving lead screw 21. Auxiliary components 6 are also installed on the upper and lower sides of the multiple moving blocks 22. Rotation holes 1 23 are opened on the multiple moving blocks 22. Rotation shaft 1 24 is installed in the rotation holes 1 23. Rotation plate 25 is installed on the rotation shaft 1 24. Mounting ears 26 are provided on both sides of the top of the rotation plate 25. Rotation holes 27 are opened on the mounting ears 26. Rotation shaft 28 is installed in the rotation holes 27. Adjustment shaft 29 is installed on the rotation shaft 28. Fixing component 5 is installed at one end of the adjustment shaft 29.

[0035] Reference Figure 5 The fixing component 5 includes a rotating base 51 fixed to one end of the adjusting shaft 29. A fixing block 52 is connected to the rotating base 51. A fastening groove 53 is provided at the bottom of the fixing block 52. An installation hole 54 is provided at the bottom of the fastening groove 53. A fixing cylinder 55 extends from one side of the top of the fixing block 52. A telescopic arm 56 is connected to the bottom of the fixing cylinder 55. The bottom of the telescopic arm 56 is connected to a fixing plate 57. A buffer pad 58 is also connected to the bottom of the fixing plate 57. The bottom surface of the buffer pad 58 is in contact with the top of the lifting component 3.

[0036] Specifically, the same-side fixing components 5 are symmetrically arranged, and two sets of fixing components 5 are provided on opposite sides of the workbench 1, with the buffer pad 58 covering the top of the lifting component 3.

[0037] In this embodiment, the angle and position of the fixing assembly 5 are adjusted by the cooperation of the rotating shaft 24, the rotating shaft 28, and the adjusting shaft 29, so that the fastening groove 53 at the bottom of the fixing block 52 is aligned with the edge of the workpiece. Next, the fixing cylinder 55 is activated, causing the telescopic arm 56 to extend, so that the buffer pad 58 at the bottom of the fixing plate 57 gradually approaches the surface of the workpiece until the buffer pad 58 is in close contact with the surface of the workpiece and covers the top of the lifting assembly 3, thus securing the workpiece. The fixing assemblies 5 on the same side are symmetrically arranged, and the two sets of fixing assemblies 5 on opposite sides of the worktable 1 work together to position and clamp the workpiece from multiple directions.

[0038] Reference Figure 4 The auxiliary component 6 includes auxiliary grooves 61 disposed on the upper and lower sides of the movable block 22. Multiple rollers 62 are installed in the auxiliary grooves 61. The upper and lower sides of the movable groove 11 are provided with rolling grooves 12 matching the rollers 62. The rollers 62 move synchronously with the movable block 22.

[0039] Reference Figure 3 The lifting assembly 3 includes multiple lifting cylinders 31 disposed in the lifting groove 13 inside the workbench 1. The top of the multiple lifting cylinders 31 is connected to a lifting panel 32. The multiple lifting panels 32 are spliced ​​at the opening of the lifting groove 13. Multiple connecting holes 33 are provided on the lifting panel 32. The multiple connecting holes 33 are connected to the fixing assembly 5.

[0040] Reference Figure 1 The drive motor housing 4 is T-shaped, and the bottom of the worktables on both sides is provided with a connecting slot 14 that matches the bottom of the drive motor housing 4.

[0041] In this embodiment, if the workpiece position needs to be adjusted during the milling process, the moving component 2 can be controlled by the drive motor box 4 to move the fixed component 5, or the lifting cylinder 31 of the lifting component 3 can be used to adjust the workpiece height to meet different processing requirements. Meanwhile, the rollers 62 of the auxiliary component 6 ensure smooth movement of the moving block 22, guaranteeing the stability of the processing.

[0042] In this embodiment, after processing is completed, the fixed cylinder 55 is controlled to retract the telescopic arm 56, and the fixed plate 57 drives the buffer pad 58 to detach from the workpiece surface. Then, the moving component 2 is driven to move the fixed component 5 away from the workpiece, and the lifting cylinder 31 of the lifting component 3 is controlled to retract, causing the lifting panel 32 to descend, placing the workpiece stably on the worktable, and then the workpiece can be removed.

[0043] In this embodiment, the moving component 2 can precisely control the position of the moving block 22 through the moving lead screw 21. In conjunction with the rotating shaft 24, the rotating shaft 28 and the adjusting shaft 29, the fixed component 5 can be adjusted at multiple angles. The symmetrical arrangement of the fixed components 5 on the same side and the combined action of the two sets of fixed components 5 on opposite sides can accurately position the workpiece from multiple directions, meeting the high precision requirements of milling for workpiece position.

[0044] Specifically, the buffer pad 58 of the fixing component 5 contacts the workpiece, which can effectively buffer the impact force during the fixing process and prevent the workpiece surface from being scratched or crushed. At the same time, the buffer pad 58 covers the top of the lifting component 3, increasing the contact area with the workpiece and further protecting the workpiece.

[0045] Specifically, the rollers 62 of the auxiliary component 6 roll within the rolling grooves 12 of the moving groove 11, reducing friction during the movement of the moving block 22, making the movement smoother, and also enhancing the overall stability of the moving component 2. The fixing component 5 firmly fixes the workpiece with the strong pressure provided by the fixing cylinder 55, and combined with the supporting effect of the lifting component 3, ensures that the workpiece will not shift during the milling process, guaranteeing the machining quality.

[0046] Specifically, the height of the workpiece can be adjusted by the lifting cylinder 31 of the lifting component 3, the moving component 2 can drive the fixed component 5 to move on both sides of the worktable 1, and the fixed component 5 itself has a multi-angle adjustment function, so that the positioning fixture can adapt to the milling needs of aviation hydraulic oil tank body workpieces of different sizes and shapes.

[0047] Specifically, the movement of each component is controlled by power devices such as motors and cylinders, making operation simple and convenient, reducing the labor intensity of manual operation and improving work efficiency.

[0048] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A positioning fixture for milling an aircraft hydraulic oil tank body, characterized in that: It includes multiple sets of moving components (2) arranged on both sides of the workbench (1), and multiple lifting components (3) installed inside the workbench (1), with the multiple lifting components (3) spliced ​​on the top of the workbench (1); The workbench (1) is provided in two sets, and a drive motor box (4) is provided between the two sets of workbench (1). The drive motor box (4) drives the moving component (2) to move on both sides of the workbench (1). The moving component (2) is equipped with a fixing component (5), which works in conjunction with the lifting component (3) to position and clamp the aviation hydraulic oil tank body workpiece.

2. The positioning fixture for milling an aviation hydraulic oil tank body according to claim 1, characterized in that: The moving component (2) includes a moving screw (21) disposed in the moving slots (11) on both sides of the worktable (1). One end of the moving screw (21) is connected to the motor in the drive motor box (4). The moving screw (21) is provided with multiple moving blocks (22). The multiple moving blocks (22) are also equipped with auxiliary components (6) on the upper and lower sides. The multiple moving blocks (22) are provided with a first rotating hole (23). The first rotating hole (23) is installed in the first rotating shaft (24). The first rotating shaft (24) is installed with a rotating plate (25). The top of the rotating plate (25) is provided with mounting ears (26) on both sides. The mounting ears (26) on both sides are provided with a second rotating hole (27). The second rotating hole (27) is installed with a second rotating shaft (28). The second rotating shaft (28) is also equipped with an adjusting shaft (29). One end of the adjusting shaft (29) is equipped with the fixing component (5).

3. The positioning fixture for milling an aviation hydraulic oil tank body according to claim 2, characterized in that: The fixing component (5) includes a rotating base (51) fixed to one end of the adjusting shaft (29). A fixing block (52) is connected to the rotating base (51). A fastening groove (53) is provided at the bottom of the fixing block (52). An installation hole (54) is provided at the bottom of the fastening groove (53). A fixing cylinder (55) extends from one side of the top of the fixing block (52). A telescopic arm (56) is connected to the bottom of the fixing cylinder (55). A fixing plate (57) is connected to the bottom of the telescopic arm (56). A buffer pad (58) is also connected to the bottom of the fixing plate (57). The bottom surface of the buffer pad (58) is in contact with the top of the lifting component (3).

4. The positioning fixture for milling an aviation hydraulic oil tank body according to claim 3, characterized in that: The fixing components (5) on the same side are symmetrically arranged, and two sets of fixing components (5) are provided on opposite sides of the workbench (1). The buffer pad (58) covers the top of the lifting component (3).

5. A positioning fixture for milling an aviation hydraulic oil tank body according to claim 2, characterized in that: The auxiliary component (6) includes auxiliary grooves (61) disposed on the upper and lower sides of the movable block (22). Multiple rollers (62) are installed in the auxiliary grooves (61). Rolling grooves (12) matching the rollers (62) are provided on the upper and lower sides of the movable groove (11). The rollers (62) move synchronously with the movable block (22).

6. The positioning fixture for milling an aviation hydraulic oil tank body according to claim 1, characterized in that: The lifting assembly (3) includes a plurality of lifting cylinders (31) disposed in the lifting groove (13) inside the workbench (1). The top of the plurality of lifting cylinders (31) is connected to a lifting panel (32). The plurality of lifting panels (32) are spliced ​​at the opening of the lifting groove (13). The lifting panel (32) is provided with a plurality of connecting holes (33). The plurality of connecting holes (33) are connected to the fixing assembly (5).

7. A positioning fixture for milling an aviation hydraulic oil tank body according to claim 1, characterized in that: The drive motor housing (4) is T-shaped, and the bottom of the worktables (1) on both sides is provided with a connecting slot (14) that matches the bottom of the drive motor housing (4).

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