Screw tap for machining threads of aluminum alloy thin-wall part for aerospace

Abstract

The utility model belongs to the technical field of screw taps, and particularly relates to an aerospace aluminum alloy thin-wall part thread machining screw tap which comprises a first connecting rod, a screw tap head is inserted into a mounting groove formed in the bottom of the first connecting rod, and a fixing assembly used for limiting the screw tap head is arranged on the first connecting rod. The top end of the first connecting rod is rotationally connected with a rotating shaft through a bearing, and a second connecting rod is fixed to the surface of the rotating shaft. According to the thread machining screw tap, the first connecting rod, the screw tap head, the fixing assembly, the rotating shaft, the second connecting rod, the limiting ring, the limiting groove and the limiting barrel are arranged, in the using process of the thread machining screw tap, the whole screw tap is longer than a screw tap used in the past, and therefore the thread machining screw tap can be suitable for machining threaded holes with different fall heights, and the machining efficiency is improved. And if the screw tap with the length size does not need to be used for machining in the later period, the fixing assembly is operated to release limitation on the screw tap head, then the screw tap head can be separated from the first connecting rod, and then the screw tap head can be independently clamped for use.

Description

Technical Field

[0001] The utility model relates to the technical field of taps, in particular to a tap for processing threads of aluminum alloy thin-walled parts used in aviation and aerospace. Background Art

[0002] Taps, commonly known as thread taps or screw taps, are standard tools for machining cylindrical and conical internal threads. They can be categorized by shape as spiral taps or straight-edge taps. Taps are commonly manufactured from carbon tool steel, alloy steel, and high-speed tool steel. The cutting portion of a tap requires high hardness and wear resistance, while the core requires a certain degree of toughness to reduce the risk of tool breakage and deformation caused by vibration and deflection during operation. For example, taps are used to create threaded holes in thin-walled aluminum alloy parts for aerospace applications. However, current taps are fixed in length. Due to the varying depths of threaded holes within the product structure, tapping is sometimes impossible due to the limited length of the tap. Manual tapping is sometimes required for some threaded holes. However, tapping requires a tap wrench. Without a wrench, the tap can only be tapped by clamping the back end with pliers. This method is prone to slippage and is inconvenient to use. Therefore, a new threading tap for thin-walled aluminum alloy parts for aerospace applications has been proposed to address this issue. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a thread processing tap for aluminum alloy thin-walled parts used in aerospace, which solves the problems raised in the above-mentioned background technology.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A thread processing tap for aluminum alloy thin-walled parts for aerospace use comprises a connecting rod 1, a mounting groove provided at the bottom of the connecting rod 1 having a tap head inserted therein, a fixing assembly for limiting the tap head being provided on the connecting rod 1, the top end of the connecting rod 1 being rotatably connected to a rotating shaft via a bearing, a connecting rod 2 being fixed to the surface of the rotating shaft, a limiting ring being fixed to the surface of the connecting rod 1, a limiting groove being provided at the top of the limiting ring, a limiting cylinder being threadedly connected to the surface of the connecting rod 2 which is adapted to the limiting groove, and the bottom end of the limiting cylinder being tightly inserted into the interior of the limiting groove.

[0008] Furthermore, the fixing assembly includes two bolts threadedly connected to the connecting rod 1, one end of each bolt is provided with a hexagonal groove, the other end of each bolt is fixed with a fixing plate, the other side of each fixing plate is tightly fitted with the surface of the tap head, and two makeshift grooves adapted to the fixing plate are provided inside the mounting groove of the connecting rod 1.

[0009] Furthermore, a non-slip rubber pad matching its shape is fixed to one side wall of the fixing plate.

[0010] Furthermore, a hexagonal rotating ring is fixed to the outer wall of the limiting cylinder.

[0011] Furthermore, a non-slip rubber sleeve for protecting hands is fixed on the surface of the limiting cylinder.

[0012] Furthermore, a protective cover is fixed on the surface of the tap head to prevent debris from splashing.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a tap for machining threads of thin-walled aluminum alloy parts for aerospace applications, which has the following beneficial effects:

[0015] The utility model provides a connecting rod 1, a tap head, a fixing assembly, a rotating shaft, a connecting rod 2, a limiting ring, a limiting groove and a limiting cylinder. When using this thread processing tap, the overall length of this tap is longer than that of taps used in the past, so that it can be suitable for processing threaded holes with different drop heights. If the tap of this length is not needed for processing in the future, the fixing assembly can be operated to release the restriction on the tap head and then it can be separated from the connecting rod 1. Then the tap head can be clamped and used alone. When the tap is needed to perform manual tapping operation later, the limiting cylinder can be rotated to disengage from the limiting ring, and then the connecting rod 2 can be bent to serve as a rotating handle for operation, without the need for additional tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a structural diagram of a connector of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the tap head of the utility model.

[0020] In the figure: 1. Connecting rod 1; 2. Tap head; 3. Fixing assembly; 301. Bolt; 302. Hexagonal countersunk groove; 303. Fixing plate; 304. Relief groove; 305. Anti-slip rubber pad; 4. Rotating shaft; 5. Connecting rod 2; 6. Limiting ring; 7. Limiting groove; 8. Limiting cylinder; 9. Hexagonal rotating ring; 10. Anti-slip rubber sleeve; 11. Protective cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an embodiment of the present invention proposes a thread processing tap for aluminum alloy thin-walled parts for aerospace, including a connecting rod 1, a mounting groove provided at the bottom of the connecting rod 1, a tap head 2 is inserted into the inside, a protective cover 11 is fixed on the surface of the tap head 2 for preventing debris from flying, and the protective cover 11 can be used to prevent debris flying upward during tapping from causing harm to the human body, a fixing component 3 for limiting the tap head 2 is provided on the connecting rod 1, the top end of the connecting rod 1 is rotatably connected to the rotating shaft 4 through a bearing, a connecting rod 2 5 is fixed to the surface of the rotating shaft 4, a limiting ring 6 is fixed to the surface of the connecting rod 1, a limiting groove 7 is provided on the top of the limiting ring 6, a limiting cylinder 8 adapted to the limiting groove 7 is threadedly connected to the surface of the connecting rod 2 5, and the bottom end of the limiting cylinder 8 is tightly After being inserted into the limiting groove 7, when using this thread processing tap, one end of the connecting rod 2 5 can be installed and fixed to the mounting end of the tapping equipment, and then the tap can be used for tapping operation. When the longer tap is not needed in the future, the fixing component 3 can be operated to release the restriction on the tap head 2, and then the tap head 2 can be separated from the connecting rod 1 and used separately. When manual tapping operation is needed in the future, the limiting cylinder 8 can be used to move upward with a tool. After moving upward, the limiting cylinder 8 will be disengaged from the inside of the limiting groove 7. At this time, the limiting cylinder 8 can separate it from the limiting ring 6, and then the staff can bend the connecting rod 2 5 to a horizontal state, and finally rotate the connecting rod 2 5 to perform the tapping operation. After use, the connecting rod 2 5 can be reset.

[0024] like Figure 1 、 Figure 2 and Figure 3As shown, in some embodiments, the fixing assembly 3 includes two bolts 301 threadedly connected to the connecting rod 1, one end of each bolt 301 is provided with a hexagonal groove 302, and the other end of each bolt 301 is fixed with a fixing plate 303, and one side wall of the fixing plate 303 is fixed with a non-slip rubber pad 305 that matches its shape, which can increase the friction between the fixing plate 303 and the surface of the tap head 2, so that the tap head 2 will be more stable after being clamped and fixed. The other side of the fixing plate 303 is tightly fitted with the surface of the tap head 2, and the interior of the installation groove of the connecting rod 1 is provided with two holes that match the fixing plate 303. When the screw tap 2 is in the state of being screwed, the screw tap 2 can be fixed to the workbench 301 by rotating the screw thread guide 301 and the fixing plate 303. When the screw tap 2 is in the state of being screwed, the screw thread guide 302 can be fixed to the workbench 301 by rotating the screw thread guide 301 and the fixing plate 303 ...

[0025] like Figure 2 As shown, in some embodiments, a hexagonal rotating ring 9 is fixed to the outer wall of the limiting cylinder 8, which makes it convenient for the staff to use tools to rotate the limiting cylinder 8 when operating the limiting cylinder 8 to be connected with or separated from the limiting ring 6.

[0026] like Figure 2 As shown, in some embodiments, a non-slip rubber sleeve 10 for protecting the hands is fixed to the surface of the limiting cylinder 8. When the connecting rod 25 is bent and used, the provided non-slip rubber sleeve 10 can protect the hands of the staff and at the same time increase the friction between the hands and the surface of the limiting cylinder 8, thereby achieving an anti-slip effect.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A thread processing tap for aluminum alloy thin-walled parts for aerospace, comprising a connecting rod (1), characterized in that: A tap head (2) is inserted into the mounting groove at the bottom of the connecting rod (1), and a fixing assembly (3) for limiting the tap head (2) is provided on the connecting rod (1). The top end of the connecting rod (1) is rotatably connected to a rotating shaft (4) through a bearing, and a connecting rod (5) is fixed to the surface of the rotating shaft (4). A limiting ring (6) is fixed to the surface of the connecting rod (1), and a limiting groove (7) is provided on the top of the limiting ring (6). A limiting cylinder (8) adapted to the limiting groove (7) is threadedly connected to the surface of the connecting rod (5), and the bottom end of the limiting cylinder (8) is tightly inserted into the interior of the limiting groove (7).

2. The thread processing tap for thin-walled aluminum alloy parts for aerospace according to claim 1, characterized in that: The fixing assembly (3) comprises two bolts (301) threadedly connected to the connecting rod (1), one end of each bolt (301) is provided with a hexagonal recess (302), the other end of each bolt (301) is fixed with a fixing plate (303), the other side of each fixing plate (303) is tightly fitted with the surface of the tap head (2), and two clearance grooves (304) adapted to the fixing plate (303) are provided inside the installation groove of the connecting rod (1).

3. The thread processing tap for thin-walled aluminum alloy parts for aerospace according to claim 2, characterized in that: A non-slip rubber pad (305) matching the shape of the fixing plate (303) is fixed to one side wall of the fixing plate (303).

4. The thread processing tap for thin-walled aluminum alloy parts for aerospace according to claim 1, characterized in that: A hexagonal rotating ring (9) is fixed to the outer wall of the limiting cylinder (8).

5. The thread processing tap for thin-walled aluminum alloy parts for aerospace according to claim 1, characterized in that: A non-slip rubber sleeve (10) for protecting the hands is fixed on the surface of the limiting cylinder (8).

6. The thread processing tap for thin-walled aluminum alloy parts for aerospace according to claim 1, characterized in that: A protective cover (11) for preventing debris from splashing is fixed on the surface of the tap head (2).

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