An auxiliary device for processing an aluminum alloy shaft body for aerospace

Abstract

The utility model discloses an aluminium alloy shaft body processing auxiliary device for aerospace relates to aluminium alloy shaft body processing technical field, and this utility model discloses a shaft core is inserted in the shaft body, and the outer wall of shaft core is in abutment in the inner wall of shaft body, and one end of shaft core is installed with the stud, and the movable sleeve of stud has the gasket, and the side of gasket is in abutment in the end of shaft body, and the nut is screwed and has the gasket on the stud, and the other end of shaft body is equipped with the clamping section for lathe three jaw chuck and is connected, and the cooperation and installation of shaft core and shaft body can realize the coaxial of both and the location of shaft body right -hand movement, and the cooperation and installation of stud, nut and gasket also carry out the location of shaft body left -hand movement, can stably fix the shaft body of processing with the shaft core, realizes through single cutting and can finish the processing of shaft body, effectively improves the processing efficiency, avoided the problem that the processing accuracy reduces because of the processing procedure of multiple channels.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy shaft body processing technology, and in particular to an auxiliary device for processing aluminum alloy shaft bodies for aerospace applications. Background Technology

[0002] Aluminum alloy shaft-shaped parts are the "skeleton" and "skin" of the aerospace industry. Finished parts require corrosion resistance, high temperature resistance, good toughness, and high machining precision. This particular part is a shaft-shaped component with a 6-degree 40-minute bevel and a wall thickness of only 28.4 mm. The inner hole has four stepped dimensions. The blank is forged and pressed, and the process requires machining the outer circle of the shaft. The aluminum alloy shaft-shaped body has strict requirements for dimensional tolerances, roughness, and surface finish during machining. Due to the large number of parts required for machining, the current traditional machining process requires workers to perform batch processing on CNC equipment. The machining process requires the CNC equipment to turn around multiple times, resulting in low machining efficiency and precision. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an auxiliary device for machining aerospace aluminum alloy shaft-shaped bodies, which solves the problems of low machining efficiency and machining accuracy in existing shaft-shaped body machining.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: An auxiliary device for machining an aerospace-grade aluminum alloy shaft includes a shaft core inserted into the shaft body. The outer wall of the shaft core abuts against the inner wall of the shaft body. A stud is installed at one end of the shaft core, and a washer is movably sleeved on the stud. One side of the washer abuts against the end of the shaft body, and a nut is screwed onto the other side of the washer on the stud. The other end of the shaft body is provided with a clamping section for clamping with a lathe three-jaw chuck.

[0005] As a further improvement of this utility model, the clamping section has a stepped structure.

[0006] As a further improvement of this utility model, a center hole is provided at the center of the end face of the free end of the stud.

[0007] As a further improvement of this utility model, a stepped conical inner hole is provided along the other end of the shaft.

[0008] The beneficial effects of this utility model are as follows: 1. Since the inclination of the outer circular inclined surface of the shaft core is consistent with the inclination of the inner wall of the shaft body, the shaft core can be inserted into the shaft body to achieve coaxiality, effectively improving the machining accuracy. It also limits the rightward movement of the shaft body. The washer is locked to the stud by the nut, which also limits the leftward movement of the shaft body. In this way, the shaft body to be machined and the shaft core can be stably and completely fixed. The shaft body can be machined in a single cut, which effectively improves the machining efficiency and avoids the problem of reduced machining accuracy caused by multiple machining processes.

[0009] 2. This structure, by setting the clamping section in a stepped shape, can provide radial positioning for the lathe's three-jaw chuck, preventing lateral movement during chuck clamping and enabling fast and stable clamping and fixing. At the same time, a center hole is opened at the center of the free end face of the stud, which can directly and precisely connect with the lathe's center, without the need for additional positioning structure processing, further ensuring the coaxiality of the shaft body during machining and the stability during clamping.

[0010] 3. By opening a stepped conical inner hole in the shaft core, the weight of the shaft core can be effectively reduced. The assembly of the shaft core and the shaft body to be processed can be placed in the machining position of the CNC lathe by manual handling. This process can be carried out manually without the participation of mechanical equipment, which simplifies the operation process and further improves the processing efficiency of the shaft body. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0012] In the diagram, 1 is the mandrel; 2 is the washer; 3 is the nut; 4 is the shaft-shaped body; 5 is the stud; 6 is the center hole; and 7 is the clamping section. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0014] like Figure 1As shown, an auxiliary device for machining an aerospace-grade aluminum alloy shaft-shaped body includes a shaft core 1, which is inserted into a shaft-shaped body 4. The outer wall of the shaft core 1 abuts against the inner wall of the shaft-shaped body 4. A stud 5 is installed at one end of the shaft core 1, and a washer 2 is movably sleeved on the stud 5. One side of the washer 2 abuts against the end of the shaft-shaped body 4, and a nut 3 is screwed onto the other side of the washer 2 on the stud 5. The other end of the shaft-shaped body 4 is provided with a clamping section 7 for clamping with a lathe three-jaw chuck. Due to the inclination of the outer circumferential inclined surface of the shaft core 1 and the inner wall of the shaft-shaped body 4... With consistent wall inclination, the shaft core 1 is inserted into the shaft-shaped body 4 to achieve coaxiality and improve machining accuracy. It also limits the rightward movement of the shaft-shaped body 4. The washer 2 is locked to the stud 5 by the nut 3, which also limits the leftward movement of the shaft-shaped body 4. In this way, the shaft-shaped body 4 to be processed can be completely fixed to the shaft core 1. This allows the shaft-shaped body 4 to be processed in a single cut, which effectively improves machining efficiency and avoids the problem of reduced machining accuracy caused by multiple machining processes.

[0015] The clamping section 7 has a stepped structure, and a center hole 6 is provided at the center of the free end face of the stud 5. By making the clamping section 7 stepped, it can provide radial positioning for the lathe three-jaw chuck, avoid left and right movement during chuck clamping, and achieve fast and stable clamping and fixing. At the same time, the center hole 6 at the center of the free end face of the stud 5 can be directly and accurately connected with the lathe center, without the need for additional positioning structure processing, further ensuring the coaxiality of the shaft body 4 during machining, as well as the stability during clamping, and reducing machining vibration.

[0016] The other end of the shaft core 1 is provided with a stepped conical inner hole. By providing a stepped conical inner hole in the shaft core 1, the weight of the shaft core 1 can be effectively reduced. The assembly of the shaft core 1 and the shaft body 4 to be processed can be placed in the processing position of the CNC lathe by manual handling. This process can be carried out manually without the participation of mechanical equipment, which simplifies the operation process and further improves the processing efficiency of the shaft body.

[0017] In use: Insert the shaft core 1 into the shaft-shaped body 4 so that the outer and inner walls of the two are in close contact. Then, move the washer 2 onto the stud 5 at one end of the shaft core 1 and make one side of the washer 2 close to the end of the shaft-shaped body 4. Then, screw the nut 3 onto the other side of the washer 2 on the stud 5 to limit the left and right movement of the shaft-shaped body 4. The operator directly transports the assembly formed by the shaft core 1 and the shaft-shaped body 4 to the machining position on the CNC lathe. Then, clamp the clamping section 7 at the other end of the shaft-shaped body 4 into the lathe's three-jaw chuck. The stepped structure of the clamping section 7 is used to achieve radial positioning to prevent left and right movement. Then, the lathe's center pin is connected to the center hole 6 at the center of the free end face of the stud 5 to limit the axial position, ensuring that the axis of the shaft-shaped body 4, the axis of the shaft core 1, and the axis of the lathe's rotation axis are coincident. After machining, turn off the lathe, remove the shaft-shaped body 4 and the shaft core 1, unscrew the nut 3, remove the washer 2, and pull the shaft core 1 out of the shaft-shaped body 4 to complete a single machining operation.

[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for machining an aluminum alloy shaft-shaped body for aerospace applications, characterized in that: Includes a shaft core (1), which is inserted into a shaft-shaped body (4). The outer wall of the shaft core (1) abuts against the inner wall of the shaft-shaped body (4). A stud (5) is installed at one end of the shaft core (1). A washer (2) is movably sleeved on the stud (5). One side of the washer (2) abuts against the end of the shaft-shaped body (4). A nut (3) is screwed onto the other side of the washer (2) on the stud (5). The other end of the shaft-shaped body (4) is provided with a clamping section (7) for clamping with a lathe three-jaw chuck.

2. The aerospace-grade aluminum alloy shaft-shaped body machining auxiliary device according to claim 1, characterized in that: The clamping section (7) has a stepped structure.

3. The aerospace aluminum alloy shaft-shaped body machining auxiliary device according to claim 2, characterized in that: The stud (5) has a center hole (6) at the center of the end face of its free end.

4. The aerospace aluminum alloy shaft-shaped body machining auxiliary device according to claim 3, characterized in that: A stepped conical inner hole is provided at the other end of the shaft (1).

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