Precise hole boring tool for lug of special-shaped structure

Abstract

The utility model relates to the field of aviation mechanical part machining, in particular to a special-shaped structure lug precision hole boring tool. The angle plate is perpendicular to the base plate, and an angle A is formed between the angle plate and the horizontal direction; a first positioning piece opposite to the center hole and a second positioning piece opposite to the first side hole are arranged on the angle plate. According to the utility model, the lug of the special-shaped structure can be quickly clamped, positioned and straightened, and the positioning and clamping efficiency of parts is greatly improved. One-time machining forming of the second side hole is guaranteed, the coaxiality and the space included angle are guaranteed, and the yield of mass production of parts is greatly improved. The tool is simple in overall structure, popular and easy to understand in application principle, insists in problem guidance, fully considers the problems of difficult actual clamping, difficult positioning and the like, and is convenient and rapid to operate and maintain by workers, obvious in production effect and good in batch production processing benefit.

Description

Technical Field

[0001] The utility model relates to the field of machining of aviation mechanical parts, and particularly relates to a boring tool for precision holes of an earpiece with a special-shaped structure. Background Art

[0002] As common machined structural parts, aircraft rocker arm parts are widely used in the mechanical connection and transmission of aircraft parts. Usually, the rocker arm parts are designed with earpiece structures, and there are a certain number of precision holes on the earpieces, with extremely high requirements for coaxiality and hole accuracy. In actual production operations, the machining of precision holes of conventional-structured earpieces generally does not require the aid of a tooling, and can be directly achieved by using customized machine reamers or boring machining. However, for the machining of precision holes of earpieces, although the above-mentioned machining methods for a special-shaped structure (such as earpiece distortion, the presence of compound angles, etc.) are still adopted, the positioning and clamping of the parts are very difficult. To achieve the machining of precision holes of such structures, it is necessary to complete with the aid of a certain auxiliary tooling. Summary of the Utility Model

[0003] Aiming at the problems existing in the background art, a boring tool for precision holes of an earpiece with a special-shaped structure is proposed.

[0004] The utility model provides a boring tool for precision holes of an earpiece with a special-shaped structure, which is applied to a part; a center hole, a first side hole parallel to the axis of the center hole, and a second side hole with an included angle of A degrees with the axis of the center hole are arranged on the part; the boring tool for precision holes of the earpiece with a special-shaped structure includes a base plate and an angle plate perpendicular to the base plate and having an included angle of A degrees with the horizontal direction; a first positioning member opposite to the center hole and a second positioning member opposite to the first side hole are arranged on the angle plate.

[0005] Preferably, the first positioning member is a first pin shaft.

[0006] Preferably, the second positioning member is a second pin shaft.

[0007] Preferably, after the first pin shaft passes through the center hole and the second pin shaft passes through the first side hole, one end of the pin shaft is fitted with a washer and a nut.

[0008] Preferably, a hollow structure opposite to the position of the second side hole is arranged on the angle plate.

[0009] Compared with the prior art, the utility model has the following beneficial technical effects:

[0010] The utility model improves the rapid clamping, positioning and alignment of the special-shaped structural lug, greatly improving the positioning and clamping efficiency of parts, by providing an angle plate perpendicular to the substrate and at an angle A with the horizontal direction, a positioning member one opposite to the central hole, and a positioning member two opposite to the first side hole. This ensures that the second side hole is formed in one processing, guaranteeing the coaxiality and spatial angle, and significantly improving the qualified rate of mass production of parts. The overall structure of the tooling design is simple, the application principle is easy to understand, problem-oriented, fully considering the problems such as difficult actual clamping and positioning. It is convenient and fast for workers to operate and maintain, with obvious production effects and good mass production processing benefits. Description of the Drawings

[0011] Figure 1 It is the top view of the part in the utility model;

[0012] Figure 2 It is the front sectional view of the part in the utility model;

[0013] Figure 3 It is the schematic diagram of the precision hole boring tooling for the special-shaped structural lug in the utility model (view angle one);

[0014] Figure 4 It is the schematic diagram of the precision hole boring tooling for the special-shaped structural lug in the utility model (view angle two).

[0015] Reference numerals: 1, substrate; 2, angle plate; 3, nut; 4, washer; 5, part; 6, pin two; 7, pin one; H1, central hole; H2, first side hole; H3, second side hole. Detailed Embodiment

[0016] Embodiment 1

[0017] As Figure 1 - Figure 2 shown, the part 5 is a special-shaped lug structure (such as lug twist, compound angle, etc.) in a kind of rocking aircraft arm part, with a central hole H1, a first side hole H2 horizontal to the axis of the central hole H1, and a second side hole H3 at an angle A with the axis of the central hole H1. For the above special-shaped lug structure, as Figure 3 - Figure 4 shown, a precision hole boring tooling for the special-shaped structural lug proposed in this embodiment includes a substrate 1 and an angle plate 2 perpendicular to the substrate 1 and at an angle A with the horizontal direction; on the angle plate 2, there are provided a positioning member one opposite to the central hole H1 and a positioning member two opposite to the first side hole H2.

[0018] Since the angle plate 2 is at an angle A with the horizontal direction, through the cooperation of the central hole H1 and the positioning member one, and the cooperation of the first side hole H2 and the positioning member two, the part 5 is positioned on the angle plate 2. At this time, the ventral plate surface of the second side hole H3 is in a horizontal state, and its hole axis is perpendicular to the horizontal plane.

[0019] It should be further explained that the positioning member 1 is a pin 1 7. The positioning member 2 is a pin 2 6. When the pin 1 7 passes through the center hole H1 and the pin 2 6 passes through the side hole 1 H2, the part 5 is initially positioned. The end of the pin 1 7 cooperates with the washer 4 and the nut 3. The part 5 is positioned again.

[0020] It should be further explained that a hollow structure 201 is provided on the angle plate 2, which is opposite to the position of the second side hole H3, so as to facilitate the processing of the second side hole H3 by reserving space.

[0021] Embodiment 2

[0022] The method for using a tool for boring precision holes of special-shaped ear pieces proposed in this embodiment comprises the following steps:

[0023] S1. Positioning and clamping part 5: Insert part 5 into the pin 7 on the tooling angle plate 2 through the center hole H1, and insert the pin 6 into the side hole H2 to achieve the positioning of part 5 and the alignment of the ear surface, and then tighten the washer 4 with the nut 3 to fasten part 5 to achieve the final clamping of part 5.

[0024] S2. Boring precision holes: After laying the substrate 1 flat, boring is performed. At this time, the axis of the second side hole H3 on the special-shaped ear piece is perpendicular to the horizontal plane. A single set of side holes H3 can be processed and formed at the same station at one time, effectively ensuring the coaxiality and hole size accuracy requirements. The spatial angle B ( Figure 2 (as shown) is also ensured by tooling to reduce interference from human factors.

[0025] S3. Remove part 5 and inspect the delivery.

[0026] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A precision boring tool for an irregularly shaped lug hole, applied to a part (5); a center hole (H1), a first side hole (H2) horizontal to the axis of the center hole (H1), and a second side hole (H3) at an angle A with the axis of the center hole (H1) are provided on the part (5); characterized in that, It includes a substrate (1) and an angle plate (2) that is perpendicular to the substrate (1) and forms an angle A with the horizontal direction; on the angle plate (2), there are a first positioning member opposite to the central hole (H1) and a second positioning member opposite to the first side hole (H2).

2. The precision boring tooling for the special-shaped lug with precision holes according to claim 1, wherein The first positioning member is a first pin shaft (7).

3. A boring tool for precision holes of an earpiece with a special-shaped structure according to claim 2, characterized in that, The second positioning member is a second pin shaft (6).

4. The precision boring tooling for the special-shaped lug with precision holes according to claim 3, characterized in that, After the first pin shaft (7) passes through the central hole (H1) and the second pin shaft (6) passes through the first side hole (H2), the end of the first pin shaft (7) is fitted with a washer (4) and a nut (3).

5. A boring tool for precision holes of an ear piece with a special-shaped structure according to any one of claims 1-4, characterized in that, On the angle plate (2), there is a hollow structure (201) opposite to the position of the second side hole (H3).

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