Tool special for clamp drilling

Abstract

The utility model discloses a special tool for drilling a hoop. The special tool comprises a base, a stop block, a positioning pin and an upper cover, a rectangular assembly groove used for installation of the check block is formed in the center of the upper end face of the base, and inserting grooves used for fixing the upper cover are symmetrically formed in the two sides of the rectangular assembly groove. When the clamp part is assembled, the fixing hole in the clamp part is aligned with the limiting pin hole in the side wall of the special-shaped boss of the check block, the positioning pin is inserted into the limiting pin hole, at the moment, the face-shaped part of the clamp part is attached to the special-shaped boss and is matched with the positioning pin to achieve alignment of the clamp part, and then the upper cover is buckled on the base. The clamp part is further pressed and locked through the upper cover, and then drilling operation of the clamp part is conducted in cooperation with drilling equipment.

Description

Technical Field

[0001] This utility model relates to the field of aero-engine component manufacturing technology, specifically a special tooling for drilling clamps. Background Technology

[0002] Cable clamps are a crucial component in aircraft engine parts, primarily used to secure and protect electrical cables, ensuring normal aircraft operation and flight safety. Aircraft contain numerous cables, which, if not properly secured, can loosen due to vibrations and turbulence. Therefore, cable clamps are widely used for securing and protecting aircraft cables. To ensure the efficiency, stability, and dimensional accuracy of cable clamp drilling, tooling is needed to address drilling precision issues during clamp processing, reduce scrap rates, and achieve precise and stable drilling. This paper addresses these issues through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a special tooling for drilling clamps, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a special tooling for drilling clamps, characterized in that it includes a base, a stop block, a positioning pin, and a top cover;

[0005] A rectangular assembly groove for installing the stop block is provided at the center of the upper end surface of the base, and symmetrical insertion grooves for fixing the upper cover are provided on both sides of the rectangular assembly groove.

[0006] The lower part of the stop block is a rectangular block, and the upper part is provided with an irregularly shaped boss that matches the clamp part. The top of the irregularly shaped boss is provided with a tool inlet clearance hole, and the side wall of the irregularly shaped boss is provided with a limiting pin hole for the installation of the positioning pin.

[0007] The positioning pin is a column-shaped pin and its cross-sectional dimensions match the fixing holes on the clamp parts;

[0008] The upper cover is a U-shaped block with two lower legs that are inserted into corresponding insertion slots. The top of the U-shaped block has a cutting hole.

[0009] The aforementioned irregular protrusion includes a horizontal step surface, an arc-shaped surface, a first inclined surface, a stepped surface, and a second inclined surface arranged sequentially.

[0010] The aforementioned limiting pin hole is located on the second inclined surface and is arranged perpendicular to the second inclined surface.

[0011] A clearance groove is provided along the length direction at the center of the lower end face of the crossbeam of the above-mentioned cover, and the size and shape of the clearance groove are matched with the clamp parts.

[0012] The outer edges of the two support legs of the aforementioned cover are both chamfered.

[0013] This utility model provides a special tooling for drilling clamps. It has the following advantages: The tooling has a stop block mounted on a base. During use, the clamp part to be drilled is placed on the stop block, ensuring the fixing hole on the clamp part aligns with the limiting pin hole on the side wall of the irregular boss on the stop block. The positioning pin is inserted into the limiting pin hole, at which point the surface portion of the clamp part fits against the irregular boss, and the positioning pin ensures alignment. The top cover is then fastened to the base, further tightening and locking the clamp part. This allows for drilling operations on the clamp part using drilling equipment. This not only effectively ensures the accuracy of the drilling position but also effectively prevents the clamp part from shaking during drilling. Using this tooling ensures the dimensional accuracy of the clamp part, further improving the product qualification rate. It achieves convenient, fast, safe, and stable production, effectively eliminating the dangers of drilling operations, and possesses high efficiency, stability, and guarantees the drilling accuracy of the clamp part. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a special tooling for drilling clamps according to the present invention.

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the side view cross-sectional structure.

[0016] Figure 3 This is an isometric structural diagram of the present invention without the top cover installed.

[0017] Figure 4 This is a three-dimensional structural diagram of the stop block described in this utility model.

[0018] Figure 5 This is an isometric structural diagram of the upper cover described in this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the base described in this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the clamp part to be drilled in this utility model.

[0021] In the diagram: 1. Base; 2. Stop block; 3. Positioning pin; 4. Top cover; 101. Rectangular assembly slot; 102. Insertion slot; 201. Rectangular block; 202. Irregular boss; 203. Tool entry clearance hole; 204. Limit pin hole; 401. Support leg; 402. Tool entry hole; 403. Clearance slot; 202-1. Horizontal stepped surface; 202-2. Arc-shaped surface; 202-3. First inclined surface; 202-4. Stepped surface; 202-5. Second inclined surface. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Refer to the appendix of the instruction manual Figure 1-7 As can be seen, this application specifically designs a special tooling for drilling clamps, including a base 1, a stop block 2, a positioning pin 3, and a top cover 4; a rectangular assembly groove 101 for installing the stop block 2 is opened at the center of the upper end face of the base 1, and insertion grooves 102 for fixing the top cover 4 are symmetrically arranged on both sides of the rectangular assembly groove 101; the lower part of the stop block 2 is a rectangular block 201, and the upper part is provided with an irregularly shaped boss 202 that matches the clamp parts. The top of the irregularly shaped boss 202 is provided with a tool entry clearance hole 203, and the side wall of the irregularly shaped boss 202 is provided with a limiting pin hole 204 for installing the positioning pin 3; the positioning pin 3 is a columnar pin and its cross-sectional dimensions match the fixing holes on the clamp parts; the top cover 4 is a U-shaped block and its two lower support legs 401 are respectively inserted into the corresponding insertion grooves 102. The top of the U-shaped block is provided with a tool entry hole 402. In use, the clamp parts to be drilled are placed... Place the clamp part on the stop block 2, aligning the fixing hole on the clamp part with the limiting pin hole 204 on the side wall of the irregular boss 202 on the stop block 2. Insert the positioning pin 3 into the limiting pin hole 204. At this time, the surface part of the clamp part fits against the irregular boss 202, and the positioning pin 3 helps to align the clamp part. Then, fasten the upper cover 4 onto the base 1, using the upper cover 4 to further press and lock the clamp part. Then, use drilling equipment to drill the clamp part. This not only effectively ensures the accuracy of the drilling position, but also effectively prevents the clamp part from shaking during the drilling process. Using this tooling can ensure the size of the clamp part, further improving the product qualification rate. It achieves the purpose of convenient, fast, safe and stable production, effectively eliminating the danger of drilling operations, and has high efficiency, stability and ensures the drilling accuracy of the clamp part.

[0024] In specific implementation, as a preferred configuration, the aforementioned irregular boss 202 includes a horizontal stepped surface 202-1, an arc-shaped surface 202-2, a first inclined surface 202-3, a stepped surface 202-4, and a second inclined surface 202-5 arranged sequentially. The limiting pin hole 204 is opened at the position of the second inclined surface 202-5 and is arranged perpendicular to the second inclined surface 202-5. The top surface of the irregular boss 202 adopts a segmented irregular surface arrangement, which can keep in close contact with the surface part of the lower end face of the clamp part, thereby effectively improving the support stability of the clamp part and ensuring drilling accuracy.

[0025] In the specific implementation process, as a preferred setting, the lower end face of the crossbeam of the upper cover 4 is provided with a relief groove 403 along the length direction. The size and shape of the relief groove 403 are matched with the clamping parts, which improves the contact surface fit between the upper cover 4 and the upper end face of the clamping parts, thereby effectively preventing the clamping parts from moving during the drilling operation and improving the drilling accuracy. The outer edges of the two support legs 401 of the upper cover 4 are both chamfered, which facilitates the insertion and cooperation between the upper cover 4 and the base 1, and improves the work efficiency and stability.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special tooling for drilling clamps, characterized in that, Includes base, stop, positioning pin and top cover; A rectangular assembly groove for installing the stop block is provided at the center of the upper end surface of the base, and symmetrical insertion grooves for fixing the upper cover are provided on both sides of the rectangular assembly groove. The lower part of the stop block is a rectangular block, and the upper part is provided with an irregularly shaped boss that matches the clamp part. The top of the irregularly shaped boss is provided with a tool inlet clearance hole, and the side wall of the irregularly shaped boss is provided with a limiting pin hole for the installation of the positioning pin. The positioning pin is a column-shaped pin and its cross-sectional dimensions match the fixing holes on the clamp parts; The upper cover is a U-shaped block with two lower legs that are inserted into corresponding insertion slots. The top of the U-shaped block has a cutting hole.

2. The special tooling for drilling clamps according to claim 1, characterized in that, The irregular protrusion includes a horizontal step surface, an arc surface, a first inclined surface, a stepped surface, and a second inclined surface arranged in sequence.

3. The special tooling for drilling clamps according to claim 2, characterized in that, The limiting pin hole is located on the second inclined surface and is arranged perpendicular to the second inclined surface.

4. The special tooling for drilling clamps according to claim 1, characterized in that, A clearance groove is provided along the length direction at the center of the lower end face of the crossbeam of the upper cover, and the size and shape of the clearance groove are matched with the clamp parts.

5. The special tooling for drilling clamps according to claim 1, characterized in that, The outer edges of the two support legs of the top cover are chamfered.

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