Tool for mounting kidney-shaped hole bushing

Abstract

The utility model discloses a tool for mounting a waist-shaped hole bushing, which comprises a screw rod, a positioning shaft sleeved on the outer side of the screw rod, a cushion block arranged at the upper end of the positioning shaft, a bearing arranged at the top of the cushion block, a locking nut arranged at the topmost end of the screw rod, and a gasket arranged between the locking nut and the bearing, the purpose of adjusting the angle of the bush is achieved by adjusting the angle between the cushion block and the surface of a product, the bush can be installed only by rotating the nuts at the two ends after the tool is installed, the structure is simple, the manufacturing cost is low, the tool can be suitable for installation of common bushes and kidney-shaped hole bushes, and meanwhile the one-time installation qualification rate of the bushes can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bushing installation tools, in particular to a tool for installing a waist-shaped hole bushing. Background Art

[0002] When assembling the product and the aircraft interface, the waist-shaped bushing is a key component, and its installation process is particularly important. Due to its special shape - waist-shaped inner hole with a circular outer diameter, the waist-shaped bushing faces the problem of difficult positioning during installation. This design not only increases the complexity of installation, but also easily causes the bushing to rotate unexpectedly during installation. Once the rotation occurs, the center line of the waist-shaped bushing will deviate from the preset heading, and thus it will not be able to achieve the parallel state expected during the design.

[0003] In addition, since the waist-shaped hole bushing and the mounting hole use an interference fit, that is, the outer diameter of the bushing is slightly larger than the inner diameter of the mounting hole, it is necessary to ensure that the bushing can be evenly stressed when it is installed. If the stress is uneven, the bushing may be deformed due to excessive pressure in certain areas, and may even be damaged in severe cases. This will not only affect the overall performance of the product, but may also pose a potential threat to the safety of the aircraft.

[0004] In daily assembly practice, we have encountered many problems of rotation and uneven force during the installation of waist-shaped hole bushings. The rotation problem usually manifests as an angle between the centerline of the bushing and the heading, while the uneven force may cause unevenness or local deformation of the bushing surface. These problems not only affect the efficiency and quality of assembly, but also increase the difficulty of subsequent maintenance and overhaul. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model solves the problem of inconvenience in installing waist-shaped hole bushings in the prior art.

[0006] A tool for installing a waist-shaped hole bushing comprises a screw rod, a positioning shaft is sleeved on the outer side of the screw rod, a cushion block is arranged on the upper end of the positioning shaft, a bearing is arranged on the top of the cushion block, a locking nut is arranged on the top of the screw rod, and a gasket is arranged between the locking nut and the bearing.

[0007] Furthermore, the bearing is a thrust ball bearing.

[0008] Furthermore, the screw is a full-thread screw.

[0009] Furthermore, the cushion block is a rectangular beam structure, a threaded hole is arranged at the center of the cushion block, and threaded holes are opened at both ends of the cushion block in a direction perpendicular to the central axis of the threaded hole at the center.

[0010] Furthermore, adjusting nuts are provided at both ends of the cushion block, and a spacer is provided at the lower end of the adjusting nut.

[0011] Furthermore, the spacer block is a cylindrical structure, and a threaded hole is arranged at the center of the cylinder.

[0012] Beneficial effects of the utility model:

[0013] The present application can achieve the purpose of adjusting the angle of the bushing by adjusting the angle between the pad and the product surface. After the tool is installed, it is only necessary to rotate the nuts at both ends to complete the installation of the bushing. The application has a simple structure and low manufacturing cost. It can be applied to the installation of ordinary bushings and waist-shaped hole bushings, and can effectively improve the one-time installation pass rate of the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the tool structure used for installing the bushing in a waist-shaped hole;

[0015] Figure 2 A schematic diagram of a tool structure for installing a waist-shaped hole bushing

[0016] In the figure: 1-positioning shaft, 2-pad, 3-spacer, 4-washer, 5-bearing, 6-screw, 7-locking nut, 8-adjusting nut, 9-bushing. DETAILED DESCRIPTION

[0017] The following is an explanation of the implementation of the present invention by specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to the implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details will be included in the following description. The present utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. It should be noted that in this specification, similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures.

[0018] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "set", "connected", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances. The directions or positional relationships indicated by “upper”, “lower”, “left”, “right”, “inner”, “bottom”, etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0019] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] In this embodiment, as shown in the attached Figure 1-2 As shown, a tool for installing a waist-shaped hole bushing includes a screw rod 6, a positioning shaft 1 is sleeved on the outer side of the screw rod 6, a cushion block 2 is arranged on the upper end of the positioning shaft 1, a bearing 5 is arranged on the top of the cushion block 2, a locking nut 7 is arranged at the top end of the screw rod 6, and a gasket 4 is also arranged between the locking nut 7 and the bearing 5.

[0021] Furthermore, the bearing 5 is a thrust ball bearing.

[0022] Furthermore, the screw 6 is a full-thread screw.

[0023] Furthermore, the cushion block 2 is a rectangular beam structure, a threaded hole is arranged at the center of the cushion block 2, and threaded holes are opened at both ends of the cushion block 2 in a direction perpendicular to the central axis of the threaded hole at the center.

[0024] Furthermore, adjusting nuts 8 are provided at both ends of the cushion block 2 , and a spacer block 3 is provided at the lower end of the adjusting nut 8 .

[0025] Furthermore, the spacer block 3 is a cylindrical structure, and a threaded hole is arranged at the center of the cylinder.

[0026] This application works as follows:

[0027] The small end of the positioning shaft 1 is matched with the waist-shaped hole bushing with a small gap, and the large end is matched with the spacer 2 with a small gap using the flat mouth. Therefore, the installation position of the bushing 9 can be determined by adjusting the bolts at both ends of the spacer 2, and the bushing 9 can be effectively prevented from rotating during the installation process; the middle part is connected with a screw rod 6, and the gasket 4 is squeezed by rotating the nuts 8 at both ends to ensure that the end face of the bushing 9 is always evenly stressed during the installation process.

[0028] The application is used as follows:

[0029] 1. Install the waist-shaped hole bushing 9 to the small end of the positioning shaft 1.

[0030] 2. The large end of the positioning shaft 1 is inserted into the mounting hole of the bushing 9 and extends a certain distance.

[0031] 3. Install the spacer block 2 at the protruding end of the positioning shaft 1, with the flat mouth positioned so that the side surface is close to the end surface of the mounting hole of the bushing 9.

[0032] 4. Insert the screw 6 into the middle of the component, install the bearing 5, gasket 4, and locking nut 7 in sequence on one end of the cushion block 2, and insert the gasket 4 and locking nut 7 in sequence on one end of the positioning shaft 1.

[0033] 5. Install adjusting nuts 8 at both ends of the cushion block 2, and install spacer 3 at the bottom to prevent damage to the product surface. Use a dial indicator to adjust the angle between the cushion block 2 and the product surface to meet the design requirements, and tighten the adjusting nuts 8 at both ends.

[0034] 6. Use an open-end wrench or a socket wrench to fix the locking nut 7 at one end, and use an open-end wrench or a socket wrench to rotate the locking nut 7 at one end of the bearing 5 to install the waist-shaped hole bushing 9.

[0035] Beneficial effects of the utility model:

[0036] The present application can achieve the purpose of adjusting the angle of the bushing by adjusting the angle between the pad and the product surface. After the tool is installed, it is only necessary to rotate the nuts at both ends to complete the installation of the bushing. The application has a simple structure and low manufacturing cost. It can be applied to the installation of ordinary bushings and waist-shaped hole bushings, and can effectively improve the one-time installation pass rate of the bushing.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tool for installing a waist-shaped hole bushing, characterized in that: The invention comprises a screw rod (6), a positioning shaft (1) is sleeved on the outer side of the screw rod (6), a cushion block (2) is arranged at the upper end of the positioning shaft (1), a bearing (5) is arranged at the top of the cushion block (2), a locking nut (7) is arranged at the top end of the screw rod (6), and a gasket (4) is arranged between the locking nut (7) and the bearing (5).

2. A tool for installing a waist-shaped hole bushing according to claim 1, characterized in that: The bearing (5) is a thrust ball bearing.

3. A tool for installing a waist-shaped hole bushing according to claim 1, characterized in that: The screw (6) is a full-thread screw.

4. A tool for installing a waist-shaped hole bushing according to claim 1, characterized in that: The cushion block (2) is a rectangular crossbeam structure, a threaded hole is provided at the center of the cushion block (2), and threaded holes are provided at both ends of the cushion block (2) in a direction perpendicular to the central axis of the threaded hole at the center.

5. A tool for installing a waist-shaped hole bushing according to claim 4, characterized in that: The cushion block (2) is also provided with adjusting nuts (8) at both ends, and a spacer block (3) is also provided at the lower end of the adjusting nut (8).

6. A tool for installing a waist-shaped hole bushing according to claim 5, characterized in that: The spacer (3) is a cylindrical structure, and a threaded hole is provided at the center of the cylinder.

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