An auxiliary clamping tool for positioning and drilling small thin plate parts

Abstract

The present invention provides an auxiliary clamping tool for positioning and drilling small thin plate parts, belonging to the technical field of auxiliary tools for aircraft part processing. It includes a base, a fixed stop block, an adjustable stop block, a fixed stop pin, a pressing plate, a pressing bolt and a drilling avoidance opening. The fixed stop block is fixed on the base, and a drilling avoidance opening is made beside the fixed stop block. One end of the pressing plate is fixed in the middle of the fixed stop block and is perpendicular to it, and a long strip hole is made at the other end for restricting the movement of the adjustable stop block. The fixed stop pin is fixed on the base outside the drilling avoidance opening, and the pressing bolt is matched with the threaded hole in the middle of the pressing plate. The movement of the part to be drilled along the plane direction of the base 1 is restricted by the fixed stop block 2, the adjustable stop block 3 and the fixed stop pin 4, and the movement of the part along the vertical direction of the base 1 is restricted by the pressing bolt 6. The present invention can avoid the risk of rejection caused by drilling on small thin plate parts, is convenient to use, simple to maintain, easy to understand in the operation process, and has a low manufacturing cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of aircraft part processing auxiliary tools, and relates to an auxiliary clamping tool for positioning and drilling small thin plate parts, which can avoid the phenomenon of drill bit crosstalk when drilling holes on thin gaskets, and improve the drilling quality. Background Technique

[0002] During the assembly process of the aircraft fuselage, due to error accumulation, there is a gap between the skin and the frame edge, and thin gaskets need to be added for compensation. When drilling holes on the thin gaskets, after the drill bit contacts the thin gaskets, due to the lack of an auxiliary clamping tool, there is a situation where the drill bit crosstalks on the thin gaskets, which is likely to cause scratches or oversize hole diameters.

[0003] To ensure the drilling quality on small thin plate parts, an auxiliary clamping tool for positioning and drilling small thin plate parts is developed. Summary of the Invention

[0004] The present invention provides an auxiliary clamping tool for positioning and drilling small thin plate parts, which has a simple structure and is easy to operate. It can avoid the drill bit from crosstalking on small thin plate parts during drilling, thereby causing scratches or oversize hole diameters, and improve the drilling quality.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] An auxiliary clamping tool for positioning and drilling small thin plate parts, the auxiliary clamping tool includes a base 1, a fixed stop block 2, an adjustable stop block 3, a fixed stop pin 4, a pressing plate 5, a pressing bolt 6, and a drilling avoidance opening 7.

[0007] The base 1 is in a plate-like structure, both the fixed stop block 2 and the adjustable stop block 3 are strip-shaped, the fixed stop block 2 is fixed on the base 1, and the adjustable stop block 3 is placed above the base.

[0008] On the base 1, a drilling avoidance opening 7 is provided between the fixed stop block 2 and the adjustable stop block 3 for avoiding the drilling position of the part to be drilled.

[0009] The pressing plate 5 is in a long strip plate-like structure, one end of which is provided with a through hole for fixing with the fixed stop block 2, a threaded hole is provided in the middle, and a long strip hole is provided at the other end, and the position of the long strip hole is above the adjustable stop block 3.

[0010] A bolt hole is provided in the middle of the adjustable stop block 3. After the bolt passes through the long strip hole on the pressing plate 5 and is screwed into the adjustable stop block 3, the adjustable stop block 3 can move along the long strip hole. After moving to the required position, the bolt is tightened to fix its position. The fixed stop block 2 and the adjustable stop block 3 cooperate to limit the left and right crosstalk of the part to be drilled.

[0011] The described pressing bolt 6 passes through the threaded hole in the middle of the pressing plate 5, and the two are in threaded fit. The part to be drilled is pressed against the base 1 by the end of the pressing bolt 6.

[0012] The described fixed stop pin 4 is fixed on the base 1 on the side away from the pressing bolt 6 beside the hole-making avoidance opening 7, and is used to limit the up-and-down movement of the part to be drilled.

[0013] After the part to be drilled is placed between the fixed stop block 2, the adjustable stop block 3, and the fixed stop pin 4, move the adjustable stop block 3 until both sides of the part to be drilled are in contact with the fixed stop block 2 and the adjustable stop block 3. Tighten the bolt on the adjustable stop block 3, use the pressing bolt 6 to press the part to be drilled against the base 1, and use a pneumatic drill to perform hole-making operations on the part to be drilled. During the hole-making process, it can be ensured that the part is stably fixed and there will be no phenomenon of the drill bit moving on the part.

[0014] Advantages of the present invention: The present invention can avoid the risk of scrapping caused by hole-making on small thin plate parts, is convenient to use, simple to maintain, the operation process is easy to understand, and the manufacturing cost is low. The mature application of the present invention provides a practical method for ensuring the hole-making quality of small thin plate parts during the aircraft assembly process, avoiding the risk of scrapping during the hole-making process, and improving the product quality at the same time. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the auxiliary clamping tool.

[0016] Figure 2 It is a schematic diagram of the connection relationship between the auxiliary clamping tool and the part.

[0017] In the figure: 1 base; 2 fixed stop block; 3 adjustable stop block; 4 fixed stop pin; 5 pressing plate; 6 pressing bolt; 7 hole-making avoidance opening. Detailed Embodiment

[0018] The following further describes the present invention in conjunction with specific embodiments.

[0019] Embodiment

[0020] The described base 1 is in a plate-like structure. Both the fixed stop block 2 and the adjustable stop block 3 are strip-shaped. The fixed stop block 2 is fixed on the base 1, and the adjustable stop block 3 is placed above the base.

[0021] On the base 1, two hole-making avoidance openings 7 are provided between the fixed stop block 2 and the adjustable stop block 3, which are used to avoid the hole-making positions of the parts to be drilled. The two hole-making avoidance openings 7 are arranged along the length direction of the fixed stop block 2, and there is a certain distance between them.

[0022] The pressing plate 5 is in the shape of a long strip plate. One end is provided with a through hole for fixing to the fixed stop block 2, the middle part is provided with a threaded hole, and the other end is provided with a long strip hole, and the position of the long strip hole is above the adjustable stop block 3.

[0023] A bolt hole is provided in the middle of the adjustable stop block 3. After the bolt passes through the long strip hole on the pressing plate 5, it is screwed into the adjustable stop block 3, so that the adjustable stop block 3 can move along the long strip hole. After moving to the required position, the bolt is tightened to fix its position. The fixed stop block 2 and the adjustable stop block 3 cooperate to limit the left and right movement of the part to be drilled.

[0024] The pressing bolt 6 passes through the threaded hole in the middle of the pressing plate 5, and the two are in threaded cooperation. The part to be drilled is pressed against the base 1 by the end of the pressing bolt 6, and the end of the pressing bolt 6 abuts against the base 1 between the two hole-drilling avoidance openings 7.

[0025] The fixed stop pin 4 is fixed to the base 1 on the side away from the pressing bolt 6 beside the hole-drilling avoidance opening 7, and is used to limit the up and down movement of the part to be drilled.

[0026] As Figure 2 shown, the part is fitted to the fixed stop block 2 and the fixed stop pin 4 of the auxiliary clamping tool. Then, the adjustable stop block 3 is adjusted to fit the edge of the part, and the bolt is tightened to fix the adjustable stop block 3. Finally, the pressing bolt 6 is tightened to press the part against the base 1, so as to ensure that the part is fixed to the auxiliary clamping tool. Subsequently, the hole-drilling operation can be carried out on the part.

[0027] The above embodiments only represent the implementation modes of the present invention, but should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An auxiliary clamping tool for positioning and drilling small thin plate parts, characterized in that The described auxiliary clamping tool includes a base (1), a fixed stop block (2), an adjustable stop block (3), a fixed stop pin (4), a pressing plate (5), a pressing bolt (6), and a hole-making avoidance opening (7); The base (1) is a plate-like structure. Both the fixed stop block (2) and the adjustable stop block (3) are strip-shaped. The fixed stop block (2) is fixed on the base (1), and the adjustable stop block (3) is placed above the base; On the base (1), a hole-making avoidance opening (7) is provided between the fixed stop block (2) and the adjustable stop block (3) for avoiding the hole-making position of the part to be hole-made; The pressing plate (5) is a long strip plate-like structure. One end of it is provided with a through hole for fixing with the fixed stop block (2), the middle part is provided with a threaded hole, and the other end is provided with a long strip hole, and the position of the long strip hole is above the adjustable stop block (3); A bolt hole is provided in the middle of the adjustable stop block (3). After the bolt passes through the long strip hole on the pressing plate (5) and is screwed into the adjustable stop block (3), the adjustable stop block (3) can move along the long strip hole. After moving to the required position, the bolt is tightened to fix its position. The fixed stop block (2) and the adjustable stop block (3) cooperate to limit the left-right movement of the part to be hole-made; The pressing bolt (6) passes through the threaded hole in the middle of the pressing plate (5), and the two are in threaded cooperation. The end of the pressing bolt (6) presses the part to be hole-made on the base (1); The fixed stop pin (4) is fixed on the base (1) on the side of the hole-making avoidance opening (7) away from the pressing bolt (6) to limit the up-down movement of the part to be hole-made.

2. The auxiliary clamping tool for positioning and hole-making of small thin plate parts according to claim 1, characterized in that, There are two hole-making avoidance openings (7) in total. The two are located on the same side of the fixed stop block (2) and are arranged along the length direction of the fixed stop block (2), and there is a certain distance between the two. The end of the pressing bolt (6) abuts on the base (1) between the two hole-making avoidance openings (7).

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