Aircraft part inner hole grinding tool

Abstract

The utility model belongs to the technical field of grinding, specifically relates to an aircraft part inner hole grinding frock, include: grinding stick, grinding stick is conical, the conical hole is set up in the grinding sleeve, and the grinding stick little head one end is installed in the conical hole of grinding sleeve, and the notch is set up on the grinding sleeve end face. The notch of 1mm is set up on the grinding sleeve end face, can pass through the adjustment assembly position of grinding sleeve and grinding stick when grinding sleeve wears, thereby adjusting the notch to the suitable size for grinding inner hole, improve the processing quality. Spiral groove is set up on the outer wall of grinding sleeve, and the spiral groove is stored grinding paste, thereby guaranteeing the size and roughness of part inner hole, satisfies under different circumstances use.

Description

Technical Field

[0001] This utility model belongs to the field of grinding technology, specifically relating to a grinding fixture for the inner hole of aircraft parts. Background Technology

[0002] In the field of aerospace manufacturing, the quality and precision of aircraft parts directly affect the flight performance, safety, and reliability of aircraft. Many critical components on aircraft have internal bore structures. These bores are not only used for assembly and connection with other components but may also be involved in important functions such as lubrication, hydraulic transmission, and airflow channels. Therefore, extremely stringent requirements are placed on the dimensional accuracy, shape accuracy, and surface quality of the internal bores of aircraft parts. Currently, common machining methods for the internal bores of aircraft parts include drilling, reaming, and boring. However, after the initial shaping of the internal bores, these methods often fail to directly achieve the high precision and quality standards required for aircraft parts. The internal bore surface may exhibit problems such as high roughness, dimensional tolerances exceeding limits, and shape errors. These problems can severely affect the assembly accuracy and operational performance of aircraft parts. To address these issues, internal bore grinding technology has emerged. Internal bore grinding is a finishing method that uses the relative motion between a grinding tool and the internal bore surface, utilizing tiny abrasive grains in the grinding compound to perform micro-cutting on the internal bore surface, thereby reducing surface roughness and correcting dimensional and shape errors. Many parts on aircraft have high requirements for the dimensional accuracy and surface roughness of their internal holes, making machining and maintenance difficult. Large holes can be ensured by honing, while smaller holes can only be machined by grinding. However, during the grinding process, the outer wall of the grinding rod is worn, and the outer wall dimension of the grinding rod cannot be adjusted, affecting the machining quality of the internal holes. Utility Model Content

[0003] Therefore, this utility model aims to solve the problem in the prior art that when grinding the inner hole of a part, the outer wall of the grinding rod will be worn, the outer wall size of the grinding rod cannot be adjusted, and the processing quality of the inner hole is affected.

[0004] Therefore, the technical solution adopted is a grinding fixture for the inner hole of an aircraft part according to this utility model, comprising: a grinding rod, the grinding rod being conical, a grinding sleeve having a conical hole, the small end of the grinding rod being installed in the conical hole of the grinding sleeve, and a notch being provided on the end face of the grinding sleeve.

[0005] Preferably, the larger end of the grinding rod is connected to the handle.

[0006] Preferably, the handle is cylindrical.

[0007] Preferably, the end of the handle away from the grinding rod is chamfered.

[0008] Preferably, the taper of the grinding rod is 1:50.

[0009] Preferably, the outer wall of the grinding sleeve is provided with a spiral groove.

[0010] The present invention has the following advantages: a 1mm notch is provided on the end face of the grinding sleeve. When the grinding sleeve is worn, the assembly position of the grinding sleeve and the grinding rod can be adjusted to adjust the notch to a suitable size for grinding the inner hole, thereby improving the processing quality.

[0011] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0012] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is the front view of this utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Among them, 1. grinding rod; 2. grinding sleeve; 3. conical hole; 4. notch; 5. handle. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component.

[0019] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] This utility model provides a grinding fixture for the inner hole of aircraft parts, such as... Figure 1-2 As shown, the device includes: a grinding rod 1, which is tapered; a grinding sleeve 2 with a tapered hole 3 inside; the smaller end of the grinding rod 1 is installed in the tapered hole 3 of the grinding sleeve 2; and a notch 4 is provided on the end face of the grinding sleeve 2. The larger end of the grinding rod 1 is connected to a handle 5. The handle 5 is cylindrical for easy gripping during grinding of the inner hole of the part. The end of the handle 5 away from the grinding rod 1 is chamfered to reduce injury to the operator. The taper of the grinding rod 1 is 1:50. A spiral groove is provided on the outer wall of the grinding sleeve 2 to store grinding paste, thereby ensuring the size and roughness of the inner hole of the part to meet the needs of different applications.

[0022] The beneficial technical effects of the above technical solution are as follows: the tapered hole 3 of the grinding sleeve 2 has the same outer taper as the grinding rod 1. At the same time, a 1mm notch 4 is provided on the end face of the grinding sleeve 2. When the grinding sleeve 2 is worn, the assembly position of the grinding sleeve 2 and the grinding rod 1 can be adjusted to adjust the notch to a suitable size for grinding the inner hole, thereby improving the processing quality.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A grinding fixture for the inner bore of an aircraft part, characterized in that, include: The grinding rod (1) is conical. A conical hole (3) is provided inside the grinding sleeve (2). The small end of the grinding rod (1) is installed in the conical hole (3) of the grinding sleeve (2). A notch (4) is provided on the end face of the grinding sleeve (2).

2. The grinding fixture for the inner hole of an aircraft part according to claim 1, characterized in that, The larger end of the grinding rod (1) is connected to the handle (5).

3. The grinding fixture for the inner hole of an aircraft part according to claim 2, characterized in that, The handle (5) is cylindrical.

4. The grinding fixture for the inner hole of an aircraft part according to claim 3, characterized in that, The end of the handle (5) away from the grinding rod (1) is chamfered.

5. The grinding fixture for the inner hole of an aircraft part according to claim 1, characterized in that, The taper of the grinding rod (1) is 1:

50.

6. The grinding fixture for the inner hole of an aircraft part according to claim 1, characterized in that, The grinding sleeve (2) has a spiral groove on its outer wall.

Images