Bushing mounting device

Abstract

The utility model relates to the field of aircraft assembly equipment, in particular to a lining installation device which can effectively prevent a pressing rod from excessively pressing a lining and further guarantee correct assembly of the lining and comprises an operation table, a structural block lifting shaft is arranged on the operation table in the vertical direction, a structural block is arranged on the structural block lifting shaft in a sliding mode, and the pressing rod is arranged on the structural block. The pressing rod is arranged in the vertical direction, a guide rod used for pressing the lining is fixedly arranged at the bottom end of the pressing rod, the pressing rod is arranged on the structural block in a sliding mode, the top end of the pressing rod is arranged above the structural block, and a pressing rod limiting structure is arranged at the top end of the pressing rod. The bottom of the pressing rod limiting structure is tightly attached to the top face of the structural block so as to prevent the pressing rod from continuously sliding downwards. The device is particularly suitable for the assembling process link of the lining in the airplane assembling process.

Description

Technical Field

[0001] This utility model relates to the field of aircraft assembly equipment, and in particular to a bushing installation device. Background Technology

[0002] In the aircraft assembly industry, bushing installation is a crucial process that directly affects the stability and safety of the aircraft structure. Bushing installation often employs cold-shrink fitting or hot-fitting methods. During installation, due to the stringent interference fit requirements between the bushing and the mounting hole, relying on manual hammering often fails to guarantee the accuracy and uniformity of bushing installation. This can easily lead to bushing misalignment, incomplete installation, and low efficiency, making it unsuitable for large-scale bushing installations.

[0003] Furthermore, traditional bushing pressing fixtures mostly adopt an integrated design, where the structural block is mounted on the operating table via a lifting shaft, and a pressure rod is installed on the block. When the pressure rod slides downwards to drive the guide rod to press the bushing, the design and optimization of the pressure intensity and timing of cessation of pressure are lacking. Therefore, during actual installation, it is easy to apply excessive pressure to the bushing, resulting in damage, or to press the bushing forward from its already installed position, leading to installation failure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a bushing installation device that effectively prevents the pressure bar from pressing the bushing excessively, thereby ensuring the correct assembly of the bushing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a bushing installation device, including an operating table, a structural block lifting shaft is arranged vertically on the operating table, a structural block is slidably arranged on the structural block lifting shaft, a pressure rod is arranged on the structural block, the pressure rod is arranged vertically, a guide rod for pressing the bushing is fixedly arranged at the bottom end of the pressure rod, the pressure rod is slidably arranged on the structural block, the top end of the pressure rod is arranged above the structural block, and a pressure rod limiting structure is arranged at the top end of the pressure rod. When the pressure rod slides down and drives the bushing to the assembly position, the bottom of the pressure rod limiting structure is tightly attached to the top surface of the structural block to prevent the pressure rod from sliding down further.

[0006] Furthermore, the pressure bar limiting structure includes a pressure bar limiting bolt, which is fixedly installed at the top of the pressure bar by threaded engagement. The pressure bar limiting bolt is arranged parallel to the pressure bar, and the screw of the pressure bar limiting bolt is located between the nut of the pressure bar limiting bolt and the top surface of the structural block.

[0007] Furthermore, it includes a locking block and a lifting shaft adjusting bolt set on the top of the structural block lifting shaft. The lifting shaft adjusting bolt is rotatably set on the locking block around the axis of the lifting shaft adjusting bolt. The lifting shaft adjusting bolt is set parallel to the lifting shaft of the structural block, and the lifting shaft adjusting bolt is threadedly connected to the structural block.

[0008] Furthermore, it includes a handle that is rotatably mounted on the structural block, with the rotating end of the handle engaging with the pressure rod via gear meshing, and the handle being used to drive the pressure rod to slide.

[0009] Furthermore, the device includes a guide rod mounting hole located at the bottom end of the pressure rod, the guide rod mounting hole being coaxially arranged with the pressure rod, and a guide rod fixing bolt being provided on the side wall of the pressure rod, the guide rod fixing bolt fixing the guide rod in the guide rod mounting hole.

[0010] The beneficial effects of this utility model are as follows: 1. In actual use, the pressure rod slides downward, thereby driving the guide rod matching the bushing to move downward. The guide rod drives the bushing to move downward, thus completing the assembly. When the bushing moves downward to the position where the assembly is completed, the bottom of the pressure rod limiting structure is just in close contact with the top surface of the structural block. At this point, the pressure rod limiting structure can no longer move downward, and consequently, the pressure rod also cannot slide downward along with the pressure rod limiting structure. Due to the existence of the pressure rod limiting structure, even if an external force is applied to try to drive the pressure rod downward, the pressure rod cannot move downward. This control over the applied external force effectively ensures the correct assembly of the bushing and greatly improves the assembly efficiency. 2. By rotating the adjusting bolt of the lifting shaft, the structural block can be easily adjusted in the height direction. At the same time, since the structural block and the adjusting bolt of the lifting shaft are connected by a threaded fit, when an external force is applied to the bushing through the structural block, the self-locking effect of the thread can also prevent the structural block from sliding, ensuring the stability of the structural block position and improving the accuracy of the bushing assembly. Third, the pressure rod and guide rod are detachably assembled, allowing for flexible selection of a matching guide rod based on the bushing's dimensions, thus enhancing the device's versatility. This invention is particularly suitable for the bushing assembly process in aircraft assembly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0012] Figure 2 This is a schematic diagram of the guide rod of this utility model.

[0013] The components in the diagram are labeled as follows: 1. Operating panel; 2. Structural block lifting shaft; 3. Structural block; 5. Locking pressure block; 6. Handle; 7. Lifting shaft adjusting bolt; 8. Pressure rod limiting bolt; 9. Pressure rod; 10. Guide rod fixing bolt; 11. Guide rod; 111. Guide rod fixing rod; 112. Guide rod sleeve. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] like Figure 1 and Figure 2 The bushing mounting device shown includes an operating table 1, which is generally mounted on a horizontal surface. A structural block lifting shaft 2 is vertically mounted on the operating table 1, and a structural block 3 is slidably mounted on the structural block lifting shaft 2. A locking block 5 is fixedly mounted at the top of the structural block lifting shaft 2. Based on the locking block 5, a lifting shaft adjusting bolt 7 is rotatably mounted in a through hole on the locking block 5. The lifting shaft adjusting bolt 7 can rotate around its own axis. When the lifting shaft adjusting bolt 7 rotates, it can drive the threaded structural block 3 to slide upwards or downwards along the structural block lifting shaft 2, thereby adjusting the height of the structural block 3.

[0016] A pressure rod 9 is slidably mounted on one side of structural block 3, and the pressure rod 9 is arranged vertically. A handle 6 is rotatably mounted on structural block 3. Figure 1 As shown, one end of the handle 6 is for the operator to grip, thereby applying external force. The other end of the handle 6 is located inside the structural block 3, serving as the rotating end, and is equipped with a gear. This gear engages with the rack on the side wall of the pressure rod 9 to achieve transmission. In other words, the handle 6 achieves gear meshing with the rack of the pressure rod 9 through the gear. When the handle 6 is gripped and rotated, the gear of the handle 6 drives the pressure rod 9 to slide up and down. The above-described drive structure is also a conventional existing structure.

[0017] A pressure rod limiting bolt 8 is provided at the top of the pressure rod 9. The pressure rod limiting bolt 8 is fixed to the top of the pressure rod 9 by threaded engagement. The pressure rod limiting bolt 8 is arranged parallel to the pressure rod 9, and the screw of the pressure rod limiting bolt 8 is located between the nut of the pressure rod limiting bolt 8 and the top surface of the structural block 3. That is, the downward movement of the pressure rod 9 is restricted by the tight contact and limitation between the bottom of the screw of the pressure rod limiting bolt 8 and the top surface of the structural block 3.

[0018] When the handle is turned and the pressure rod 9 slides downward, the guide rod 11 at the bottom of the pressure rod 9 also moves downward. The guide rod fixing rod 111 of the guide rod 11 is set in the guide rod mounting hole at the bottom of the pressure rod 9, and is fixed by the guide rod fixing bolt 10 passing through the side wall of the guide rod 11. The size of the guide rod sleeve 112 is adapted to the size of the bushing to be installed. The guide rod 11 presses the bushing at its bottom downward to move downward, thereby realizing the bushing assembly process. When the bushing moves downward to the assembly position, that is, when the bushing no longer needs to move downward, the bottom of the screw of the pressure rod limiting bolt 8 is also in a tight fit with the top surface of the structural block 3. At this time, the pressure rod 9 can no longer move downward, preventing excessive external force from damaging the bushing or affecting the bushing installation position. Thanks to the presence of the pressure rod limit bolt 8, even if the bushing is pressed and installed by manually rotating the handle 6, there is no need to worry about excessive rotation affecting the bushing, thus ensuring installation efficiency and quality in mass installation of bushings.

Claims

1. A bushing installation device, comprising an operating table (1), a structural block lifting shaft (2) arranged vertically on the operating table (1), a structural block (3) slidably arranged on the structural block lifting shaft (2), a pressure rod (9) arranged on the structural block (3), the pressure rod (9) being arranged vertically, and a guide rod (11) for pressing the bushing being fixedly arranged at the bottom end of the pressure rod (9), characterized in that: The pressure rod (9) is slidably mounted on the structural block (3). The top end of the pressure rod (9) is located above the structural block (3). The top end of the pressure rod (9) is provided with a pressure rod limiting structure. When the pressure rod (9) slides down and drives the bushing to the assembly position, the bottom of the pressure rod limiting structure is closely attached to the top surface of the structural block (3) to prevent the pressure rod (9) from continuing to slide down.

2. The bushing mounting device as described in claim 1, characterized in that: The pressure bar limiting structure includes a pressure bar limiting bolt (8), which is fixedly installed on the top of the pressure bar (9) by threaded engagement. The pressure bar limiting bolt (8) is arranged parallel to the pressure bar (9), and the screw of the pressure bar limiting bolt (8) is located between the nut of the pressure bar limiting bolt (8) and the top surface of the structural block (3).

3. The bushing mounting device as described in claim 1 or 2, characterized in that: It includes a locking block (5) and a lifting shaft adjusting bolt (7) set on the top of the lifting shaft (2) of the structural block. The lifting shaft adjusting bolt (7) is rotatably set on the locking block (5) around the axis of the lifting shaft adjusting bolt (7). The lifting shaft adjusting bolt (7) is set parallel to the lifting shaft (2) of the structural block. The lifting shaft adjusting bolt (7) is threadedly connected to the structural block (3).

4. The bushing mounting device as described in claim 1 or 2, characterized in that: Includes a handle (6) rotatably mounted on the structural block (3). The rotating end of the handle (6) is engaged with the pressure rod (9) via gear meshing. The handle (6) is used to drive the pressure rod (9) to slide.

5. The bushing mounting device as described in claim 1 or 2, characterized in that: The guide rod mounting hole is provided at the bottom end of the pressure rod (9). The guide rod mounting hole is coaxially arranged with the pressure rod (9). A guide rod fixing bolt (10) is provided on the side wall of the pressure rod (9). The guide rod fixing bolt (10) fixes the guide rod (11) in the guide rod mounting hole.

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