Tool capable of conveniently guaranteeing drilling perpendicularity

Abstract

The utility model provides a tool for conveniently guaranteeing drilling perpendicularity, and belongs to the technical field of aircraft assembling and manufacturing. The tool comprises an air drill body, a limiting drill bushing, a petal type plastic baffle plate, two locking mechanisms and a bracket with a spring, specifically, the air drill body comprises a drill bit part, and the limiting drill bushing is mounted on the drill bit part. And a movable petal type plastic baffle sheet is arranged at the front end of the limiting drill bushing. And the two locking mechanisms are respectively fixed on the air drill body and the limiting drill bushing. The end, with the spring, of the support is connected to the first locking mechanism, the end, without the spring, of the support is connected to the second locking mechanism, the air drill body and the limiting drill sleeve are connected into a whole, and the axial stability of the air drill body in the drilling process is kept. The limiting drill bushing is introduced, so that the drilling tool can be tightly attached to the surface of a material through the limiting drill bushing, and the perpendicularity of a drilled hole is guaranteed; and drilling operation can be rapidly, efficiently and normatively carried out.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of aircraft assembly and manufacturing, and relates to a tool for conveniently ensuring drilling perpendicularity. BACKGROUND

[0002] In aircraft assembly and manufacturing, drilling is a common and important process. Usually, an operator uses an air drill to manually drill rivet holes or bolt holes. It is very important to ensure the perpendicularity of drilling during the drilling process, mainly in the following aspects: (1) structural strength and stability. The structural design of an aircraft has strict requirements for the position and angle of each drilling hole. Only by ensuring the perpendicularity of drilling can uniform stress and overall strength of the structure during installation of connecting parts (such as rivets, bolts, etc.) be ensured; (2) assembly accuracy and alignment accuracy. The accurate assembly of various parts of an aircraft depends on the accuracy and perpendicularity of drilling. Perpendicular drilling can ensure the accuracy and consistency of assembly and avoid problems such as position deviation or loose connection in the subsequent assembly process; (3) reduction of assembly defects and maintenance costs. Perpendicular drilling can significantly reduce the defect rate in the assembly process. Non-perpendicular drilling may result in incomplete insertion of standard parts or local asymmetric assembly, thereby increasing the cost of subsequent maintenance and adjustment.

[0003] At present, most factories still use ordinary air drills and small-mouth cup-type vertical drilling devices for drilling. This method has the following disadvantages: (1) low drilling efficiency. Using ordinary air drills and small-mouth cup-type vertical drilling devices requires the operator to keep the drill bit stable and perpendicular to the drilling material, which has a high requirement for the operator's concentration. Over time, the drilling efficiency will inevitably decrease; (2) the perpendicularity of drilling cannot be guaranteed when drilling hard aircraft parts such as titanium alloy. When drilling hard workpieces, the operator needs to press the air drill with both hands, which cannot guarantee that the small-mouth cup-type vertical drilling device is perpendicular to the surface of the part; (3) easy to damage the material surface. When using ordinary air drills for drilling, the material debris generated by the friction of the drill bit on the surface of the drilling material is easy to wrap around the drill bit, which can easily damage the surface of the material near the drilling hole. Therefore, it is necessary to research more advanced drilling auxiliary tools to further realize the refinement of drilling operations in aircraft assembly and manufacturing. SUMMARY

[0004] In view of the problems existing in the prior art, the utility model provides an auxiliary device for ensuring the perpendicularity of drilling.

[0005] The utility model adopts the technical scheme of:

[0006] A tool for conveniently ensuring the perpendicularity of drilling, wherein the tool comprises an air drill body 1, a limiting drill sleeve 2, a petal-shaped plastic baffle 3, a first locking mechanism 4, a second locking mechanism 5, and a bracket 6 with a spring.

[0007] The air drill body 1 comprises a drill head part at the front end of the air drill body 1.

[0008] The limiting drill sleeve 2 is designed according to the diameter of the drill head of the air drill body 1, and the limiting drill sleeve 2 is tightly attached to the drill head, so that the limiting drill sleeve 2 is tightly attached to the drilling material, thereby ensuring the perpendicularity of the drilling.

[0009] The petal-shaped plastic baffle 3 comprises three pieces, and is in a convex state in a natural state.

[0010] The first locking mechanism 4 is fixed to the air drill body 1.

[0011] The second locking mechanism 5 is fixed to the limiting drill sleeve 2.

[0012] The spring-loaded support 6 is connected to the first locking mechanism 4 at one end and connected to the second locking mechanism 5 at the other end.

[0013] In the design scheme of the utility model, the limiting drill sleeve 2 is arranged at the front part of the air drill body 1, and the petal-shaped plastic baffle 3 is arranged on the limiting drill sleeve 2.

[0014] The key technical points of the utility model are: 1. installing the limiting drill sleeve 2 on the drill bit of the air drill body 1: ensuring the drilling perpendicularity, especially the perpendicularity of drilling hard workpieces such as titanium alloy; 2. adopting the petal type plastic baffle on the limiting drill sleeve 2: the material chips generated during drilling can enter the gap between the petal type plastic baffles, effectively avoiding the winding of the chips around the drill bit and the damage to the material surface; 3. connecting the limiting drill sleeve 2 and the air drill body 1 through the bracket 6 with spring: making the limiting drill sleeve 2 closely adhere to the material surface, ensuring the axial stability and axial perpendicularity of the air drill during drilling.

[0015] The utility model has the advantages of:

[0016] (1) the utility model introduces the limiting drill sleeve. When in use, only need to pull the locking mechanism backward to drive the limiting drill sleeve to move backward, expose the drill bit to the material surface required drilling position, loosen the locking mechanism, and the limiting drill sleeve automatically adheres to the material surface under the spring force, so that the drilling operation can be started, which ensures the drilling perpendicularity and relatively simple operation;

[0017] (2) the tool can quickly, efficiently and standardize the drilling operation, reduce the labor cost, and help to promote the precision process of drilling operation in aircraft assembly and manufacturing, and reduce the experience requirement of the operator;

[0018] (3) compared with the ordinary air drill, the tool can effectively improve the drilling quality, is more convenient and fast, reduces the drilling time, and improves the drilling efficiency.

[0019] (4) the tool can drill various hole diameters by quickly replacing the limiting drill sleeve suitable for different diameter drill bits.

[0020] (5) the tool adopts the petal type plastic baffle on the limiting drill sleeve, effectively avoids the phenomenon that the material chips generated by the friction of the drill bit on the drilling material surface are easy to wind around the drill bit and damage the material surface near the drilling hole during the drilling process using the ordinary air drill. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 For the convenience of ensuring the hole perpendicularity device structure schematic view.

[0022] In the drawing: 1 air drill body; 2 limiting drill sleeve; 3 petal type plastic baffle; 4 first locking mechanism; 5 second locking mechanism; 6 bracket with spring. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with specific embodiments.

[0024] A tool for conveniently ensuring the perpendicularity of a drill hole, comprising a pneumatic drill body 1, a limiting drill sleeve 2, petal-shaped plastic baffles 3, a first locking mechanism 4, a second locking mechanism 5, and a bracket with a spring 6.

[0025] The pneumatic drill body 1 comprises a drill head portion at the front end of the pneumatic drill body 1.

[0026] The limiting drill sleeve 2 is designed according to the diameter of the drill bit used in the pneumatic drill body 1, so that the limiting drill sleeve 2 closely contacts the drill bit, and the perpendicularity of the drill hole is ensured by making the limiting drill sleeve 2 closely contact the material of the drill hole. The front end of the limiting drill sleeve 2 is provided with movable petal-shaped plastic baffles 3.

[0027] The petal-shaped plastic baffles 3 comprise three baffles, which are in a convex state in a natural state and are contracted into the limiting drill sleeve 2 when subjected to external force, so that a certain gap is formed between the baffles, and the material debris generated during the drilling process can enter the gap, effectively avoiding the winding of the debris around the drill bit.

[0028] The first locking mechanism 4 is fixed on the pneumatic drill body 1.

[0029] The second locking mechanism 5 is fixed on the limiting drill sleeve 2.

[0030] The bracket with a spring 6 has one end connected to the first locking mechanism 4 and the other end connected to the second locking mechanism 5. The first locking mechanism 4, the second locking mechanism 5, and the bracket with a spring 6 connect the pneumatic drill body 1 and the limiting drill sleeve 2 into a whole, so as to maintain the axial stability of the pneumatic drill body 1 during the drilling process, and make the limiting drill sleeve 2 closely contact the surface of the material, thereby better ensuring the perpendicularity of the drill hole.

[0031] The tool for conveniently ensuring the perpendicularity of a drill hole is used for drilling a material surface, and comprises the following steps:

[0032] First, the second locking mechanism 5 is pulled backward, the second locking mechanism 5 drives the limiting drill sleeve 2 to move, and the spring on the bracket with a spring 6 is compressed under pressure, so that the drill bit portion at the front end of the pneumatic drill body 1 is exposed. The drill bit is aimed at the desired drilling position on the surface of the material, and then the second locking mechanism 5 is released. The limiting drill sleeve 2 is closely attached to the surface of the material by the elastic force of the spring on the bracket with a spring 6, so as to ensure the perpendicularity of the drill hole during the drilling process. The petal-shaped plastic baffles 3 are extruded by the surface of the material to form gaps, and the drilling operation is started at this time. The material debris generated during the drilling process enters the gaps, effectively avoiding the winding of the debris around the drill bit and the damage to the surface of the material. The first and second locking mechanisms 4 and 5 and the bracket with a spring 6 connect the pneumatic drill body 1 and the limiting drill sleeve 2, so as to maintain the axial stability of the pneumatic drill body 1 during the drilling process, thereby completing the drilling work on the surface of the material.

[0033] The above embodiments only express the implementation manners of the present application, but cannot be understood as the limitation of the scope of the present application patent. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A tool for facilitating the assurance of the perpendicularity of a bore, characterised in that, The tool comprises a wind drill body (1), a limiting drill sleeve (2), petal plastic stop flaps (3), a first locking mechanism (4), a second locking mechanism (5), and a bracket with a spring (6). The wind drill body (1) comprises a drill bit part at the front end of the wind drill body (1), and the limiting drill sleeve (2) is installed on the drill bit. The limiting drill sleeve (2) is provided with movable petal plastic stop flaps (3) at the front end. The petal plastic stop flaps (3) comprise three flaps, which are in a convex state in a natural state and are contracted to the inside of the limiting drill sleeve (2) when subjected to external force, and a certain gap is formed between the flaps. The first locking mechanism (4) is fixed on the wind drill body (1). The second locking mechanism (5) is fixed on the limiting drill sleeve (2). The bracket with a spring (6) is connected to the first locking mechanism (4) at one end with a spring and to the second locking mechanism (5) at the other end without a spring, so that the wind drill body (1) and the limiting drill sleeve (2) are connected as a whole through the first locking mechanism (4), the second locking mechanism (5), and the bracket (6), thereby maintaining the axial stability of the wind drill body (1) during drilling.

2. A tool for conveniently ensuring the perpendicularity of a borehole according to claim 1, characterized in that, The hole diameter of the limiting drill sleeve (2) is designed according to the diameter of the drill bit used in the wind drill body (1), so that the limiting drill sleeve (2) is tightly attached to the drill bit, and the perpendicularity of the drilling is ensured by making the limiting drill sleeve (2) tightly attached to the drilling material.

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